阅读说明：本技术 图像显示装置、图像显示系统以及移动体 (Image display device, image display system, and moving object ) 是由 草深薰 于 2019-08-05 设计创作，主要内容包括：图像显示装置具备显示面板、屏障面板及控制器。显示面板构成为能够形成第1显示区域及第2显示区域,构成为能够将右眼图像显示在第1显示区域的右眼视认区域,构成为能够将左眼图像显示在第1显示区域的左眼视认区域,构成为能够在第2显示区域显示平面图像。屏障面板构成为能够形成第1屏障区域及第2屏障区域,构成为能够在第1屏障区域及第2屏障区域形成透光部及减光部。控制器构成为在显示面板使位于第1显示区域的部分显示为包含两个子帧的一个视差图像帧。控制器构成为在显示面板使位于第2显示区域的部分显示为平面图像帧。构成为视差图像帧所包含的子帧的帧频及平面图像帧的帧频相同。(The image display device includes a display panel, a barrier panel, and a controller. The display panel is configured to be capable of forming a 1 st display region and a 2 nd display region, configured to be capable of displaying a right eye image in a right eye viewing region of the 1 st display region, configured to be capable of displaying a left eye image in a left eye viewing region of the 1 st display region, and configured to be capable of displaying a planar image in the 2 nd display region. The barrier panel is configured to be capable of forming a 1 st barrier region and a 2 nd barrier region, and is configured to be capable of forming a light transmitting portion and a light reducing portion in the 1 st barrier region and the 2 nd barrier region. The controller is configured to display a portion located in the 1 st display region as one parallax image frame including two sub-frames on the display panel. The controller is configured to display a portion located in the 2 nd display area as a planar image frame on the display panel. The frame rate of the sub-frames included in the parallax image frame is the same as the frame rate of the planar image frame.)

1. An image display device is characterized by comprising:

a display panel configured to be capable of displaying a plurality of frames;

a barrier panel that is arranged to overlap the display panel, is configured to divide a traveling direction of at least a part of the image light emitted from the display panel into right and left eyes of a user, and is capable of forming a light-transmitting portion and a light-reducing portion; and

a controller configured to control the display panel and the barrier panel,

the display panel is configured to:

the 1 st display area and the 2 nd display area can be formed;

a right eye image visually recognized by a right eye of a user can be displayed in the right eye viewing region of the 1 st display region, and a left eye image visually recognized by a left eye of the user can be displayed in the left eye viewing region of the 1 st display region, and a left eye viewing region can be displayed;

a planar image visually recognized by both eyes of a user can be displayed in the 2 nd display area,

the barrier panel is configured to:

a 1 st barrier region corresponding to the 1 st display region and a 2 nd barrier region corresponding to the 2 nd display region can be formed;

forming the light transmitting portion and the light reducing portion in the 1 st barrier region so that the right-eye viewing region and the left-eye viewing region are different positions in the 1 st display region;

forming the light transmitting portion and the light reducing portion in the 2 nd barrier region in conformity with the planar image displayed in the 2 nd display region,

the controller is configured to, when the display panel displays two consecutive frames:

displaying a portion located in the 1 st display region as one parallax image frame including a 1 st sub-frame and a 2 nd sub-frame;

displaying the portion located in the 2 nd display area as two plane image frames,

the controller is configured to:

the display of the parallax image in the 1 st display area and the formation of the light-transmitting portion and the light-reducing portion in the 1 st barrier area may be controlled for each parallax image frame so that a user can visually recognize the 1 st sub-frame and the 2 nd sub-frame included in the one parallax image frame together as one parallax image;

the display of a planar image in the 2 nd display area and the formation of the light-transmitting portion and the light-reducing portion in the 2 nd barrier area can be controlled for each planar image frame;

the frame frequency of the sub-frames included in the parallax image frame is the same as the frame frequency of the plane image frame.

2. The image display apparatus according to claim 1,

the controller is configured to:

the display of the parallax image in the 1 st display region and the formation of the light transmitting portions and the light reducing portions in the 1 st barrier region may be controlled so that the right-eye viewing region and the left-eye viewing region are at different positions in the 1 st sub-frame and the 2 nd sub-frame.

3. The image display apparatus according to claim 1 or 2,

the right eye image includes a 1 st sub-right eye image and a 2 nd sub-right eye image,

the left-eye image includes a 1 st sub-left-eye image and a 2 nd sub-left-eye image,

the controller is configured to: causing the 1 st display region to display the 1 st sub-right-eye image and the 1 st sub-left-eye image in the 1 st subframe,

the controller is configured to: causing the 1 st display region to display the 2 nd sub-right-eye image and the 2 nd sub-left-eye image in the 2 nd sub-frame,

the controller is configured to: the light-transmitting portion and the light-reducing portion of the 1 st barrier region may be controlled so as to match the display of each of the 1 st sub-frame and the 2 nd sub-frame, so that the region in which the right-eye image is displayed includes the right-eye viewing region, and the region in which the left-eye image is displayed includes the left-eye viewing region.

4. The image display apparatus according to claim 3,

the controller is configured to: the 2 nd sub-right-eye image may be displayed in an area where the 1 st sub-right-eye image is displayed, and the 2 nd sub-right-eye image may be displayed in an area where the 1 st sub-right-eye image is displayed, at a timing of changing display from the 1 st subframe to the 2 nd subframe.

5. The image display apparatus according to claim 1,

the controller is configured to: the 1 st barrier region may be controlled such that the right-eye viewing region in the 1 st sub-frame and the right-eye viewing region in the 2 nd sub-frame do not overlap each other, and the left-eye viewing region in the 1 st sub-frame and the left-eye viewing region in the 2 nd sub-frame do not overlap each other.

6. The image display device according to any one of claims 1 to 5,

at least a portion of the 2 nd display region includes a black display region,

the controller is configured to: in the barrier panel, the light reduction part is formed in an area corresponding to the black display area in the 2 nd barrier area.

7. The image display device according to any one of claims 1 to 6,

the controller is configured to:

in the 1 st display region, when the 2 nd sub-frame is displayed subsequent to the 1 st sub-frame, the positions of the right-eye viewing region and the left-eye viewing region in the 2 nd sub-frame can be determined based on the positions of the right-eye viewing region and the left-eye viewing region in the 1 st sub-frame,

in the 1 st display region, when the 1 st sub-frame is displayed subsequent to the 2 nd sub-frame, the positions of the right-eye viewing region and the left-eye viewing region in the 2 nd sub-frame can be determined based on the positions of the eyes of the user, not based on the positions of the right-eye viewing region and the left-eye viewing region in the 2 nd sub-frame displayed immediately before.

8. The image display apparatus according to claim 7,

the controller is configured to: the formation of the light transmitting portion and the light reducing portion in the 2 nd barrier region may be controlled based on a position of an eye of a user for each of the planar image frames.

9. The image display device according to any one of claims 1 to 8,

the controller includes a 1 st controller controlling the display panel and a 2 nd controller controlling the barrier panel,

the 1 st controller and the 2 nd controller are configured to be capable of synchronizing.

10. An image display system characterized in that,

comprising an image display device and a reflecting member,

the image display device includes:

a display panel configured to be capable of displaying a plurality of frames;

a barrier panel that is arranged to overlap the display panel, that is configured to divide a traveling direction of at least a part of the image light emitted from the display panel into right and left eyes of a user, and that is capable of forming a light-transmitting portion and a light-reducing portion; and

a controller configured to control the display panel and the barrier panel,

the display panel is configured to:

the 1 st display area and the 2 nd display area can be formed;

a right eye image visually recognized by a right eye of a user can be displayed in a right eye viewing region of the 1 st display region, and a left eye image visually recognized by a left eye of the user can be displayed in a left eye viewing region of the 1 st display region;

a planar image visually recognized by both eyes of a user can be displayed in the 2 nd display area,

the barrier panel is configured to:

a 1 st barrier region corresponding to the 1 st display region and a 2 nd barrier region corresponding to the 2 nd display region can be formed;

forming the light transmitting portion and the light reducing portion in the 1 st barrier region so that the right-eye viewing region and the left-eye viewing region are different positions in the 1 st display region;

forming the light transmitting portion and the light reducing portion in the 2 nd barrier region in conformity with the planar image displayed in the 2 nd display region,

the controller is configured to, when the display panel displays two consecutive frames:

displaying a portion located in the 1 st display region as one parallax image frame including a 1 st sub-frame and a 2 nd sub-frame;

displaying the portion located in the 2 nd display area as two plane image frames,

the controller is configured to:

the display of the parallax image in the 1 st display area and the formation of the light-transmitting portion and the light-reducing portion in the 1 st barrier area may be controlled for each parallax image frame so that a user can visually recognize the 1 st sub-frame and the 2 nd sub-frame included in the one parallax image frame together as one parallax image;

the display of a planar image in the 2 nd display area and the formation of the light-transmitting portion and the light-reducing portion in the 2 nd barrier area can be controlled for each planar image frame;

the frame rate of the sub-frames included in the parallax image frame and the frame rate of the plane image frame are the same,

the reflection member is configured to:

the image light is reflected so as to reach the left and right eyes of the user.

11. The image display system according to claim 10,

the controller is configured to:

the display of the parallax image in the 1 st display region and the formation of the light transmitting portions and the light reducing portions in the 1 st barrier region may be controlled so that the right-eye viewing region and the left-eye viewing region are at different positions in the 1 st sub-frame and the 2 nd sub-frame.

12. The image display system according to claim 10 or 11,

the right eye image includes a 1 st sub-right eye image and a 2 nd sub-right eye image,

the left-eye image includes a 1 st sub-left-eye image and a 2 nd sub-left-eye image,

the controller is configured to: causing the 1 st display region to display the 1 st sub-right-eye image and the 1 st sub-left-eye image in the 1 st subframe,

the controller is configured to: causing the 1 st display region to display the 2 nd sub-right-eye image and the 2 nd sub-left-eye image in the 2 nd sub-frame,

the controller is configured to: the light-transmitting portion and the light-reducing portion of the 1 st barrier region may be controlled so as to match the display of each of the 1 st sub-frame and the 2 nd sub-frame, so that the region in which the right-eye image is displayed includes the right-eye viewing region, and the region in which the left-eye image is displayed includes the left-eye viewing region.

13. The image display system according to claim 10,

the controller is configured to: the 1 st barrier region may be controlled such that the right-eye viewing region in the 1 st sub-frame and the right-eye viewing region in the 2 nd sub-frame do not overlap each other, and the left-eye viewing region in the 1 st sub-frame and the left-eye viewing region in the 2 nd sub-frame do not overlap each other.

14. The image display system according to any one of claims 10 to 13,

at least a portion of the 2 nd display region includes a black display region,

the controller is configured to: in the barrier panel, an area corresponding to the black display area in the 2 nd barrier area is formed as the light reduction part.

15. The image display system according to any one of claims 10 to 14,

the controller is configured to:

in the 1 st display region, when the 2 nd sub-frame is displayed subsequent to the 1 st sub-frame, the positions of the right-eye viewing region and the left-eye viewing region in the 2 nd sub-frame may be determined based on the positions of the right-eye viewing region and the left-eye viewing region in the 1 st sub-frame;

in the 1 st display region, when the 1 st sub-frame is displayed subsequent to the 2 nd sub-frame, the positions of the right-eye viewing region and the left-eye viewing region in the 2 nd sub-frame can be determined based on the positions of the eyes of the user, not based on the positions of the right-eye viewing region and the left-eye viewing region in the 2 nd sub-frame displayed immediately before.

16. A movable body characterized in that a movable body is provided,

comprising an image display device and a reflecting member,

the image display device includes:

a display panel configured to be capable of displaying a plurality of frames;

a barrier panel that is arranged to overlap the display panel, that is configured to divide a traveling direction of at least a part of the image light emitted from the display panel into right and left eyes of a user, and that is capable of forming a light-transmitting portion and a light-reducing portion; and

a controller configured to control the display panel and the barrier panel,

the display panel is configured to:

the 1 st display area and the 2 nd display area can be formed;

a right eye image visually recognized by a right eye of a user can be displayed in a right eye viewing region of the 1 st display region, and a left eye image visually recognized by a left eye of the user can be displayed in a left eye viewing region of the 1 st display region;

a planar image visually recognized by both eyes of a user can be displayed in the 2 nd display area,

the barrier panel is configured to:

a 1 st barrier region corresponding to the 1 st display region and a 2 nd barrier region corresponding to the 2 nd display region can be formed;

forming the light transmitting portion and the light reducing portion in the 1 st barrier region so that the right-eye viewing region and the left-eye viewing region are different positions in the 1 st display region;

forming the light transmitting portion and the light reducing portion in the 2 nd barrier region in conformity with the planar image displayed in the 2 nd display region,

the controller is configured to, when the display panel displays two consecutive frames:

displaying a portion located in the 1 st display region as one parallax image frame including a 1 st sub-frame and a 2 nd sub-frame;

displaying the portion located in the 2 nd display area as two plane image frames,

the controller is configured to:

the display of the parallax image in the 1 st display area and the formation of the light-transmitting portion and the light-reducing portion in the 1 st barrier area may be controlled for each parallax image frame so that a user can visually recognize the 1 st sub-frame and the 2 nd sub-frame included in the one parallax image frame together as one parallax image;

the display of a planar image in the 2 nd display area and the formation of the light-transmitting portion and the light-reducing portion in the 2 nd barrier area can be controlled for each planar image frame;

the frame rate of the sub-frames included in the parallax image frame and the frame rate of the plane image frame are the same,

the reflection member is configured to:

the image light is reflected so as to reach the left and right eyes of the user.

17. The movable body according to claim 16, wherein,

the controller is configured to: the display of the parallax image in the 1 st display region and the formation of the light transmitting portions and the light reducing portions in the 1 st barrier region may be controlled so that the right-eye viewing region and the left-eye viewing region are at different positions in the 1 st sub-frame and the 2 nd sub-frame.

18. The movable body according to claim 16 or 17, wherein,

the right eye image includes a 1 st sub-right eye image and a 2 nd sub-right eye image,

the left-eye image includes a 1 st sub-left-eye image and a 2 nd sub-left-eye image,

the controller is configured to: causing the 1 st display region to display the 1 st sub-right-eye image and the 1 st sub-left-eye image in the 1 st subframe,

the controller is configured to: causing the 1 st display region to display the 2 nd sub-right-eye image and the 2 nd sub-left-eye image in the 2 nd sub-frame,

the controller is configured to: the light-transmitting portion and the light-reducing portion of the 1 st barrier region may be controlled so as to match the display of each of the 1 st sub-frame and the 2 nd sub-frame, so that the region in which the right-eye image is displayed includes the right-eye viewing region, and the region in which the left-eye image is displayed includes the left-eye viewing region.

19. The movable body according to claim 16, wherein,

the controller is configured to: the 1 st barrier region may be controlled such that the right-eye viewing region in the 1 st sub-frame and the right-eye viewing region in the 2 nd sub-frame do not overlap each other, and the left-eye viewing region in the 1 st sub-frame and the left-eye viewing region in the 2 nd sub-frame do not overlap each other.

20. The movable body according to any one of claims 16 to 19 wherein,

at least a portion of the 2 nd display region includes a black display region,

the controller is configured to: in the barrier panel, an area corresponding to the black display area in the 2 nd barrier area is formed as the light reduction part.

21. The movable body according to any one of claims 16 to 20 wherein,

the controller is configured to:

in the 1 st display region, when the 2 nd sub-frame is displayed subsequent to the 1 st sub-frame, the positions of the right-eye viewing region and the left-eye viewing region in the 2 nd sub-frame can be determined based on the positions of the right-eye viewing region and the left-eye viewing region in the 1 st sub-frame,

in the 1 st display region, when the 1 st sub-frame is displayed subsequent to the 2 nd sub-frame, the positions of the right-eye viewing region and the left-eye viewing region in the 2 nd sub-frame can be determined based on the positions of the eyes of the user, not based on the positions of the right-eye viewing region and the left-eye viewing region in the 2 nd sub-frame displayed immediately before.

Technical Field

The present disclosure relates to an image display device, an image display system, and a moving object.

Background

Conventionally, there is known an image display device that projects a parallax image to both eyes of a user through an effective barrier and provides stereoscopic vision. The effective pixel number of the parallax image projected to the left and right eyes of the user is equal to or less than half of the effective pixel number of the display panel. Therefore, the following structure is known: by driving the effective barrier so that the images projected to the left and right eyes of the user, respectively, are exchanged with the even frame and the odd frame displayed in 1 group, the effective pixel number of the parallax image is increased. This technique is described in, for example, the following papers.

Ayuki Hayashishita，Hideki Kakeya，“Time-Division Multiplexing Parallax Barrier with Sub-Subpixel Phase Shift”，SID 2018DIGEST，P-88，1515-1518

Disclosure of Invention

An image display device according to an embodiment of the present disclosure includes a display panel, a barrier panel, and a controller. The display panel is configured to be capable of displaying a plurality of frames. The barrier panel is arranged to overlap the display panel, and is configured to divide a traveling direction of at least a part of the image light emitted from the display panel into right and left eyes of a user, and to be capable of forming a light-transmitting portion and a light-reducing portion. The controller is configured to control the display panel and the barrier panel. The display panel is configured to be capable of forming a 1 st display region and a 2 nd display region. The display panel is configured to be capable of displaying a right-eye image viewed by a right eye of a user in a right-eye viewing area of the 1 st display area. The display panel is configured to be capable of displaying a left-eye image viewed by the left eye of the user in a left-eye viewing region of the 1 st display region. The display panel is configured to be capable of displaying a planar image viewed by both eyes of a user in the 2 nd display region. The barrier panel is configured to be capable of forming a 1 st barrier region corresponding to the 1 st display region and a 2 nd barrier region corresponding to the 2 nd display region. The barrier panel is configured to form the light transmitting portion and the light reducing portion such that the right-eye viewing area and the left-eye viewing area are at different positions in the 1 st display area. The barrier panel is configured to: the light transmitting portion and the light reducing portion are formed in the 2 nd barrier region so as to match the planar image displayed in the 2 nd display region. The controller is configured to: when the display panel is caused to display two consecutive frames, a portion located in the 1 st display region is caused to be displayed as one parallax image frame including a 1 st sub-frame and a 2 nd sub-frame. The controller is configured to: in a case where the display panel is caused to display two consecutive frames, a portion located in the 2 nd display area is caused to be displayed as two plane image frames. The controller is configured to control the display panel and the barrier panel so that a user can visually recognize images displayed in the 1 st sub-frame and the 2 nd sub-frame included in the one parallax image frame together as one parallax image. The controller is configured to control display of a parallax image in the 1 st display area and formation of the light-transmitting portion and the light-reducing portion in the 1 st barrier area for each parallax image frame. The controller is configured to control display of a planar image in the 2 nd display area and formation of the light transmitting portion and the light reducing portion in the 2 nd barrier area in accordance with the planar image frame. The frame rate of the sub-frames included in the parallax image frame is the same as the frame rate of the planar image frame.

An image display system according to an embodiment of the present disclosure includes an image display device and a reflecting member. The image display device includes a display panel, a barrier panel, and a controller. The display panel is configured to be capable of displaying a plurality of frames. The barrier panel is arranged to overlap the display panel, and is configured to divide a traveling direction of at least a part of the image light emitted from the display panel into right and left eyes of a user, and to be capable of forming a light-transmitting portion and a light-reducing portion. The controller is configured to control the display panel and the barrier panel. The display panel is configured to be capable of forming a 1 st display region and a 2 nd display region. The display panel is configured to be capable of displaying a right-eye image viewed by a right eye of a user in a right-eye viewing area of the 1 st display area. The display panel is configured to be capable of displaying a left-eye image viewed by the left eye of the user in a left-eye viewing region of the 1 st display region. The display panel is configured to be capable of displaying a planar image viewed by both eyes of a user in the 2 nd display region. The barrier panel is configured to be capable of forming a 1 st barrier region corresponding to the 1 st display region and a 2 nd barrier region corresponding to the 2 nd display region. The barrier panel is configured to form the light transmitting portion and the light reducing portion such that the right-eye viewing area and the left-eye viewing area are at different positions in the 1 st display area. The barrier panel is configured to: the light transmitting portion and the light reducing portion are formed in the 2 nd barrier region so as to match the planar image displayed in the 2 nd display region. The controller is configured to: when the display panel is caused to display two consecutive frames, a portion located in the 1 st display region is caused to be displayed as one parallax image frame including a 1 st sub-frame and a 2 nd sub-frame. The controller is configured to: in a case where the display panel is caused to display two consecutive frames, a portion located in the 2 nd display area is caused to be displayed as two plane image frames. The controller is configured to control the display panel and the barrier panel so that a user can visually recognize images displayed in the 1 st sub-frame and the 2 nd sub-frame included in the one parallax image frame together as one parallax image. The controller is configured to control display of a parallax image in the 1 st display area and formation of the light-transmitting portion and the light-reducing portion in the 1 st barrier area for each parallax image frame. The controller is configured to control display of a planar image in the 2 nd display area and formation of the light transmitting portion and the light reducing portion in the 2 nd barrier area in accordance with the planar image frame. The frame rate of the sub-frames included in the parallax image frame is the same as the frame rate of the planar image frame. The reflection member is configured to: the image light is reflected so as to reach the left and right eyes of the user.

A moving object mounted image display system according to an embodiment of the present disclosure. The image display system includes an image display device and a reflecting member. The image display device includes a display panel, a barrier panel, and a controller. The display panel is configured to be capable of displaying a plurality of frames. The barrier panel is arranged to overlap the display panel, and is configured to divide a traveling direction of at least a part of the image light emitted from the display panel into right and left eyes of a user, and to be capable of forming a light-transmitting portion and a light-reducing portion. The controller is configured to control the display panel and the barrier panel. The display panel is configured to be capable of forming a 1 st display region and a 2 nd display region. The display panel is configured to be capable of displaying a right-eye image viewed by a right eye of a user in a right-eye viewing area of the 1 st display area. The display panel is configured to be capable of displaying a left-eye image viewed by the left eye of the user in a left-eye viewing region of the 1 st display region. The display panel is configured to be capable of displaying a planar image viewed by both eyes of a user in the 2 nd display region. The barrier panel is configured to be capable of forming a 1 st barrier region corresponding to the 1 st display region and a 2 nd barrier region corresponding to the 2 nd display region. The barrier panel is configured to form the light transmitting portion and the light reducing portion such that the right-eye viewing area and the left-eye viewing area are at different positions in the 1 st display area. The barrier panel is configured to: the light transmitting portion and the light reducing portion are formed in the 2 nd barrier region so as to match the planar image displayed in the 2 nd display region. The controller is configured to: when the display panel is caused to display two consecutive frames, a portion located in the 1 st display region is caused to be displayed as one parallax image frame including a 1 st sub-frame and a 2 nd sub-frame. The controller is configured to: in a case where the display panel is caused to display two consecutive frames, a portion located in the 2 nd display area is caused to be displayed as two plane image frames. The controller is configured to control the display panel and the barrier panel so that a user can visually recognize images displayed in the 1 st sub-frame and the 2 nd sub-frame included in the one parallax image frame together as one parallax image. The controller is configured to control display of a parallax image in the 1 st display area and formation of the light-transmitting portion and the light-reducing portion in the 1 st barrier area for each parallax image frame. The controller is configured to control display of a planar image in the 2 nd display area and formation of the light transmitting portion and the light reducing portion in the 2 nd barrier area in accordance with the planar image frame. The frame rate of the sub-frames included in the parallax image frame is the same as the frame rate of the planar image frame. The reflection member is configured to: the image light is reflected so as to be directed to the left and right eyes of the user.

Drawings

Fig. 1 is a side view showing a configuration example of an image display device according to an embodiment.

Fig. 2 is a block diagram showing a configuration example of an image display device according to an embodiment.

Fig. 3 is a plan view showing a configuration example of the display panel.

Fig. 4 is a plan view showing a structural example of the barrier panel.

Fig. 5 is a diagram illustrating an example of an observation method for observing the image display device from a user.

Fig. 6 is a diagram showing an example of a sub left-eye image included in the left eye.

Fig. 7 is a diagram showing an example of a sub right-eye image included in the right eye.

Fig. 8 is a diagram showing an example of display of the display panel in the 1 st sub-frame.

Fig. 9 is a diagram showing an example of display of the display panel in the 2 nd sub-frame.

Fig. 10 is a diagram showing a configuration example of an image display system according to an embodiment.

Detailed Description

As shown in fig. 1 and 2, the image display device 10 according to one embodiment includes a display panel 20, a barrier panel 30, and a controller 50. The display panel 20 is configured to display an image to be viewed by a user. The barrier panel 30 is configured such that a part of the image light emitted from the display panel 20 reaches one of the left eye 5L and the right eye 5R of the user, and another part of the image light reaches the other eye of the user. In other words, the barrier panel 30 is configured to divide the traveling direction of at least a part of the image light into the left eye 5L and the right eye 5R of the user. The barrier panel 30 may be positioned closer to the display panel 20 or farther from the user. The image light advancing in the direction defined by the barrier panel 30 can reach the left eye 5L and the right eye 5R of the user as different image light, respectively. As a result, the user can visually recognize different images in the left eye 5L and the right eye 5R. In other words, the image display device 10 can be configured to project parallax images to both eyes of the user. The parallax image is an image including images projected to the left eye 5L and the right eye 5R of the user, respectively, and is an image that gives parallax to both eyes of the user. The user can stereoscopically view the image by observing the parallax image in the left eye 5L and the right eye 5R. The direction in which parallax is given to both eyes of the user is also referred to as a parallax direction. The parallax direction corresponds to the direction in which the left eye 5L and the right eye 5R of the user are arranged.

The controller 50 is connected to each component of the image display device 10 and can control each component. The controller 50 may include a 1 st controller 51 and a 2 nd controller 52. The 1 st controller 51 may be configured to control the display panel 20. The 2 nd controller 52 may be configured to control the barrier panel 30. The 1 st controller 51 and the 2 nd controller 52 may be configured to be capable of synchronization. The 1 st controller 51 and the 2 nd controller 52 may be configured to be controllable as a relationship between a master and a slave. One of the 1 st controller 51 and the 2 nd controller 52 is configured to be controllable as a master, and the other is configured to be controllable as a slave. The controller 50 may further include a superordinate controller that is located superordinate to the 1 st controller 51 and the 2 nd controller 52 and controls the 1 st controller 51 and the 2 nd controller 52.

The controller 50 may be configured as a processor, for example. The controller 50 may comprise more than one processor. The processor may include a general-purpose processor that reads a specific program to perform a specific function and a special-purpose processor dedicated to a specific process. The special purpose processor may comprise an Application Specific Integrated Circuit (ASIC). The processor may include a Programmable Logic Device (PLD). The PLD may comprise an FPGA (Field-Programmable Gate Array). The controller 50 may be any one of a System-on-a-Chip (SoC) In which one or more processors cooperate, and a SiP (System In a Package). The controller 50 may be configured to include a storage unit, and store various information, a program for operating each component of the image display device 10, and the like in the storage unit. The storage unit may be formed of, for example, a semiconductor memory. The storage unit may be configured to function as a work memory of the controller 50.

The display panel 20 is configured to be able to display a plurality of left-eye images 23L (see fig. 6) for viewing by the left eye 5L of the user, a plurality of right-eye images 23R (see fig. 7) for viewing by the right eye 5R of the user, and a planar image 24 (see fig. 8) for viewing by both eyes of the user. The Display panel 20 may be a Liquid Crystal device such as an LCD (Liquid Crystal Display). The display panel 20 may be a self-light emitting device such as an organic EL (Electro-Luminescence) or an inorganic EL. In the case where the display panel 20 is a self-light emitting device, the barrier panel 30 is located on the side closer to the user than the display panel 20.

As shown in fig. 3, the display panel 20 is configured to be able to form a 1 st display region 21 and a 2 nd display region 22. The 1 st display region 21 includes a plurality of left-eye viewing regions 21L viewed by the left eye 5L of the user and a plurality of right-eye viewing regions 21R viewed by the right eye 5R of the user. The display panel 20 is configured to be able to display the left-eye image 23L in each left-eye viewing region 21L and to be able to display the right-eye image 23R in each right-eye viewing region 21R. In other words, the display panel 20 is configured to be able to display parallax images in the plurality of left-eye viewing regions 21L and the plurality of right-eye viewing regions 21R. The plurality of left-eye viewing regions 21L and the plurality of right-eye viewing regions 21R are arranged in the X-axis direction. In the present embodiment, the parallax direction corresponds to the X-axis direction. The X-axis direction is also referred to as the horizontal direction or the 1 st direction. The Y-axis direction is also referred to as the vertical direction or 2 nd direction. The left-eye viewing region 21L and the right-eye viewing region 21R may be located at spaced positions as illustrated in fig. 3, or may be adjacent to each other. The display panel 20 is configured to be able to display a flat image 24 in the 2 nd display area 22.

As shown in fig. 3, the plurality of left-eye viewing regions 21L and the plurality of right-eye viewing regions 21R may extend in the Y-axis direction, or may extend in a direction inclined at a predetermined angle with respect to the Y-axis direction. In other words, the plurality of left-eye viewing regions 21L and the plurality of right-eye viewing regions 21R may extend in a direction intersecting the parallax direction. The plurality of left-eye visual recognition regions 21L and the plurality of right-eye visual recognition regions 21R may be alternately arranged in a given direction including a component of the parallax direction. The pitch at which the left-eye visual recognition regions 21L and the right-eye visual recognition regions 21R are alternately arranged is also referred to as a parallax image pitch.

The barrier panel 30 is configured to allow the image light of the plurality of left-eye images 23L to reach the left eye 5L of the user and allow the image light of the plurality of right-eye images 23R to reach the right eye 5R of the user. The barrier panel 30 is configured to function as an effective barrier.

As shown in fig. 4, the barrier panel 30 is configured to be able to form a 1 st barrier region 31 and a 2 nd barrier region 32. When the barrier panel 30 is positioned closer to the display panel 20 when viewed from the user, the barrier panel 30 is configured to be able to control the transmittance of the image light emitted from the display panel 20. The 1 st barrier region 31 is configured to be able to control the transmittance of the image light emitted from the 1 st display region 21 in correspondence with the 1 st display region 21. The 1 st barrier region 31 is configured to be able to form a plurality of light transmitting portions 31T and a plurality of light attenuating portions 31S. The plurality of light transmitting portions 31T are configured to transmit light incident from the display panel 20 to the barrier panel 30. The plurality of light-transmitting portions 31T may be configured to transmit light at a transmittance of 1 st transmittance or higher. The 1 st transmittance may be, for example, 100% or a value close to 100%. The plurality of dimming portions 31S are configured to reduce light incident from the display panel 20 to the barrier panel 30. The plurality of light reducing portions 31S may be configured to transmit light at a transmittance of 2 nd transmittance or less. The 2 nd transmittance may be 0% or a value close to 0%, for example. The 1 st transmittance is greater than the 2 nd transmittance. The 1 st transmittance may be a value smaller than 50%, for example, 10%, as long as it is within a range in which sufficient contrast with light transmitted through the plurality of light reduction portions 31S can be ensured. The 2 nd transmittance may be a value larger than about 0%, for example, 10% or the like, as long as it is within a range in which a sufficient contrast with light that transmits the plurality of light transmission portions 31T can be secured. The ratio of sufficient contrast may be, for example, 100: 1.

When the barrier panel 30 is located on the farther side than the display panel 20 when viewed from the user, the barrier panel 30 is configured to be able to control the transmittance of light incident on the display panel 20. The plurality of light transmitting portions 31T are configured to transmit light incident on the display panel 20. The plurality of dimming portions 31S are configured to reduce light incident on the display panel 20. Thus, the 1 st barrier region 31 is configured to be able to control the transmittance of light incident on the 1 st display region 21. The intensity of the image light emitted from the display panel 20 is controlled based on the intensity of the incident light. The traveling direction of the image light emitted from the display panel 20 is controlled based on the traveling direction of the incident light.

The barrier panel 30 is configured to form a plurality of light transmitting portions 31T so that the image light of the plurality of left-eye images 23L reaches the left eye 5L of the user and the image light of the plurality of right-eye images 23R reaches the right eye 5R of the user. The barrier panel 30 is configured to form the plurality of dimming portions 31S so that the image light of the plurality of left-eye images 23L does not reach or hardly reaches the right eye 5R of the user and so that the image light of the plurality of right-eye images 23R does not reach or hardly reaches the left eye 5L of the user. The barrier panel 30 can be configured such that the user visually recognizes the plurality of right-eye images 23R with the right eye 5R, and does not visually recognize or hardly visually recognize the plurality of right-eye images 23R with the left eye 5L. The barrier panel 30 can be configured such that the user visually recognizes the plurality of left-eye images 23L with the left eye 5L and does not visually recognize or hardly visually recognize the plurality of left-eye images 23L with the right eye 5R. The barrier panel 30 is configured to form a plurality of light transmitting portions 31T and a plurality of light reducing portions 31S so as to define the direction of image light relating to a parallax image including a plurality of left-eye images 23L and a plurality of right-eye images 23R.

The barrier panel 30 is configured to form the plurality of light-transmitting portions 31T and the plurality of light-attenuating portions 31S such that the plurality of light-transmitting portions 31T and the plurality of light-attenuating portions 31S are alternately arranged in the X-axis direction. The barrier panel 30 may be configured to form the plurality of light-transmitting portions 31T and the plurality of light-attenuating portions 31S such that the boundaries between the plurality of light-transmitting portions 31T and the plurality of light-attenuating portions 31S are along the Y-axis direction or along a direction inclined at a predetermined angle with respect to the Y-axis direction, as illustrated in fig. 4. The barrier panel 30 may be configured to form the plurality of light-transmitting portions 31T and the plurality of light-reducing portions 31S such that the boundaries between the plurality of light-transmitting portions 31T and the plurality of light-reducing portions 31S are along a direction intersecting the parallax direction. In other words, the barrier panel 30 may be configured to form the plurality of light-transmitting portions 31T and the plurality of light-reducing portions 31S such that the plurality of light-transmitting portions 31T and the plurality of light-reducing portions 31S are alternately arranged in a given direction including a component of the parallax direction.

The shapes of the plurality of light-transmitting portions 31T and the plurality of light-reducing portions 31S may be determined based on the shapes of the plurality of left-eye visual recognition areas 21L and the plurality of right-eye visual recognition areas 21R. In contrast, the shapes of the plurality of left-eye visual recognition areas 21L and the plurality of right-eye visual recognition areas 21R may be determined based on the shapes of the plurality of light-transmitting portions 31T and the plurality of light-attenuating portions 31S.

The 2 nd barrier region 32 is configured to be able to control the transmittance of the image light emitted from the 2 nd display region 22 in correspondence with the 2 nd display region 22.

The barrier panel 30 may include a liquid crystal shutter. The liquid crystal shutter may be configured to be able to control transmittance of light based on an applied voltage. The liquid crystal shutter may include a plurality of pixels, and be configured to be able to control the transmittance of light in each pixel. The liquid crystal shutter may be configured to be able to form a region with high light transmittance or a region with low light transmittance into an arbitrary shape. When the barrier panel 30 includes a liquid crystal shutter, the plurality of light transmitting portions 31T may have a transmittance equal to or higher than the 1 st transmittance. In the case where the barrier panel 30 includes a liquid crystal shutter, the plurality of dimming portions 31S may have a transmittance of 2 nd transmittance or less.

Each of the display panel 20 and the barrier panel 30 has a plurality of pixels. The arrangement pitch of the plurality of pixels of the display panel 20 may be the same as or different from the arrangement pitch of the plurality of pixels of the barrier panel 30. In the present embodiment, the arrangement pitch of the plurality of pixels of the display panel 20 is set to be the same as the arrangement pitch of the plurality of pixels of the barrier panel 30. In this case, each pixel of the display panel 20 corresponds to each pixel of the barrier panel 30. Each pixel of the barrier panel 30 may be configured as any one of the plurality of light-transmitting portions 31T and the plurality of light-reducing portions 31S. The controller 50 may be configured to synchronize control of each pixel of the display panel 20 with control of each pixel of the corresponding barrier panel 30. The image quality can be improved by synchronizing the control of the pixels of the display panel 20 and the barrier panel 30 that correspond to each other.

At least a part of the plurality of pixels included in the 2 nd display region 22 may be configured to be capable of displaying black. A region formed by pixels displaying black is also referred to as a black display region. The controller 50 may be configured such that a plurality of dimming portions 31S are formed in the barrier panel 30 in an area corresponding to the black display area included in the 2 nd display area 22. Thereby, the transmittance of the image light in the black display region is further reduced. As a result, the black display region appears darker as viewed by the user.

In the structure illustrated in fig. 5, the barrier panel 30 is located between the left and right eyes 5L and 5R of the user and the display panel 20. The barrier panel 30 may also be located on a side farther than the display panel 20 when viewed from the user. The barrier panel 30 is disposed along the display panel 20. The barrier panel 30 may be disposed so as to overlap the display panel 20.

The distance between the barrier panel 30 and the left and right eyes 5L and 5R of the user is also referred to as an observation distance, and is denoted by P. The pitch at which the light transmitting portions 31T and the light reducing portions 31S are alternately arranged in the X-axis direction is also referred to as a barrier pitch. The distance between the left eye 5L and the right eye 5R, also referred to as the interocular distance, is denoted E. The distance between the barrier panel 30 and the display panel 20 is also referred to as a gap, denoted as g.

The display panel 20 is configured to form a plurality of left-eye viewing regions 21L that can be viewed from the left eye 5L of the user through the plurality of light-transmitting portions 31T and a plurality of left-eye non-viewing regions 22L that are not visible or difficult to view from the left eye 5L of the user through the plurality of dimming portions 31S. The display panel 20 is configured to form a plurality of left-eye visual recognition regions 21L and a plurality of left-eye non-visual recognition regions 22L such that the plurality of left-eye visual recognition regions 21L and the plurality of left-eye non-visual recognition regions 22L are alternately arranged in the X-axis direction. The position of the boundary between the left-eye visual recognition region 21L and the left-eye non-visual recognition region 22L is determined by the position of the boundary between the light transmitting portion 31T and the light reducing portion 31S, the distance (P) from the barrier panel 30 to both eyes of the user, and the gap (g).

The display panel 20 is configured to form a plurality of right-eye visible regions 21R that can be visually recognized from the right eye 5R of the user through the plurality of light transmitting portions 31T and a plurality of right-eye invisible regions 22R that are invisible or invisible from the right eye 5R of the user through the plurality of dimming portions 31S. The display panel 20 is configured to form a plurality of right-eye viewing areas 21R and a plurality of right-eye viewed areas 22R such that the plurality of right-eye viewing areas 21R and the plurality of right-eye non-viewed areas 22R are alternately arranged in the X-axis direction. The position of the boundary between the right-eye visual recognition region 21R and the right-eye non-visual recognition region 22R is determined by the position of the boundary between the light transmitting portion 31T and the light reducing portion 31S, the distance (P) from the barrier panel 30 to both eyes of the user, and the gap (g).

The display panel 20 may be configured to be capable of displaying parallax images such that each left-eye image 23L coincides with each left-eye viewing area 21L. The display panel 20 may be configured to be capable of displaying parallax images such that each right-eye image 23R coincides with each right-eye viewing area 21R. In other words, the display panel 20 may be configured to be able to display a parallax image based on the position of the boundary between the light transmitting portion 31T and the light reducing portion 31S, the distance (P) from the barrier panel 30 to both eyes of the user, and the gap (g).

In the case where the plurality of left-eye visual recognition regions 21L and the plurality of right-eye visual recognition regions 21R overlap at least partially in the X-axis direction, crosstalk can occur in which a part of the plurality of left-eye images 23L is projected to the right eye 5R or a part of the plurality of right-eye images 23R is projected to the left eye 5L. The crosstalk deteriorates the image quality of the parallax image projected to the user.

In the case where the plurality of left-eye visual recognition regions 21L and the plurality of right-eye visual recognition regions 21R are alternately arranged in the X-axis direction without overlapping each other, the left eye 5L can visually recognize only the plurality of left-eye images 23L, and the right eye 5R can visually recognize only the plurality of right-eye images 23R. In other words, the barrier panel 30 is configured such that the plurality of light transmitting portions 31T and the plurality of light reducing portions 31S are formed in the 1 st barrier region 31 so that the plurality of left-eye viewing regions 21L and the plurality of right-eye viewing regions 21R are at different positions from each other in the 1 st display region 21. In this case, crosstalk can be reduced. When the observation Distance (P) is an Optimum Viewing Distance (OVD), a state in which only the plurality of left-eye images 23L and the plurality of right-eye images 23R can be seen by the left eye 5L and the right eye 5R, respectively, can be realized. The viewing distance is determined based on the inter-eye distance (E), the gap (g), the barrier distance, and the parallax image distance. In other words, the controller 50 may be configured to control the display panel 20 and the barrier panel 30 such that the viewing distance (P) is OVD. The controller 50 may be configured to control the shapes and positions of the plurality of light-transmitting portions 31T and the plurality of light-reducing portions 31S in the barrier panel 30 and the shapes and positions of the plurality of right-eye images 23R and the plurality of left-eye images 23L to be displayed on the display panel 20 so that the observation distance (P) is OVD.

The image display device 10 may be configured to include a camera or the like for obtaining the position of the eyes of the user. The controller 50 may be configured to control the display panel 20 and the barrier panel 30 based on the positions of the eyes of the user. The controller 50 is configured to control the 1 st display area 21 and the 1 st barrier area 31 based on the position of the user's eyes, thereby further reducing crosstalk. The controller 50 is configured to control the 2 nd display area 22 and the 2 nd barrier area 32 based on the position of the user's eyes, so that the black display area appears darker when viewed by the user.

The display panel 20 is configured to be able to sequentially update the displayed images. When the display panel 20 updates the display image, it can be considered that the display panel 20 displays a moving image. The display panel 20 is configured to be capable of displaying a plurality of frames in sequence, thereby being capable of displaying a moving image. In the present embodiment, the entire display area of the display panel 20 is regarded as one frame. When the entire display area is one frame, the display panel 20 is configured to be able to sequentially update the image displayed on the entire surface of the display surface, and is configured to be able to sequentially display a plurality of frames. The number of frames displayed by the display panel 20 per unit time is also referred to as a frame rate. The frame rate may be expressed as the number of frames displayed by the display panel 20 in 1 second.

The display panel 20 is configured to be capable of displaying a parallax image including the plurality of right-eye images 23R and the plurality of left-eye images 23L displayed in the 1 st display region 21 and the planar image 24 displayed in the 2 nd display region 22 in a single frame in a combined manner.

The parallax image includes at least a part of the plurality of left-eye images 23L illustrated in fig. 6 and at least a part of the plurality of right-eye images 23R illustrated in fig. 7.

The plurality of left-eye images 23L illustrated in fig. 6 includes a plurality of 1 st sub-left-eye images 231L and a plurality of 2 nd sub-left-eye images 232L. The plurality of 1 st sub-left-eye images 231L and the plurality of 2 nd sub-left-eye images 232L do not overlap each other. In the present embodiment, the plurality of 1 st sub-left-eye images 231L and the plurality of 2 nd sub-left-eye images 232L extend in the Y-axis direction and are alternately arranged in the X-axis direction in each left-eye image 23L. The number of pixels in the X-axis direction of the 1 st sub-left-eye image 231L and the 2 nd sub-left-eye image 232L is 1/2 or less with respect to the number of pixels in the X-axis direction of the left-eye image 23L. In other words, the left-eye image 23L of the full pixel is divided into the 1 st sub-left-eye image 231L and the 2 nd sub-left-eye image 232L of the number of pixels equal to or less than half of the full pixel. The number of pixels of the 1 st sub-left-eye image 231L can be different from the number of pixels of the 2 nd sub-left-eye image 232L.

The plurality of right-eye images 23R illustrated in fig. 7 includes a plurality of 1 st sub-right-eye images 231R and a plurality of 2 nd sub-right-eye images 232R. The plurality of 1 st sub-right-eye images 231R and the plurality of 2 nd sub-right-eye images 232R do not overlap each other. In the present embodiment, the plurality of 1 st sub-right-eye images 231R and the plurality of 2 nd sub-right-eye images 232R extend in the Y axis direction and are alternately arranged in the X axis direction in each right-eye image 23R. The number of pixels in the X axis direction of the 1 st sub-right eye image 231R and the 2 nd sub-right eye image 232R is 1/2 or less with respect to the number of pixels in the X axis direction of the right eye image 23R. In other words, the full-pixel right eye image 23R is divided into the 1 st sub-right eye image 231R and the 2 nd sub-right eye image 232R of the pixel number of half or less of the full pixel. The number of pixels of the 1 st sub-right eye image 231R can be different from the number of pixels of the 2 nd sub-right eye image 232R.

The plurality of 1 st sub-left-eye images 231L and the plurality of 1 st sub-right-eye images 231R do not overlap each other. Thus, the display panel 20 is configured to simultaneously display the plurality of 1 st sub-left-eye images 231L and the plurality of 1 st sub-right-eye images 231R. The plurality of 2 nd sub-left-eye images 232L and the plurality of 2 nd sub-right-eye images 232R do not overlap each other. Thus, the display panel 20 is configured to be able to simultaneously display the plurality of 2 nd sub-left-eye images 232L and the plurality of 2 nd sub-right-eye images 232R.

As shown in fig. 8, the controller 50 is configured to cause the display panel 20 to display a frame in which the plurality of 1 st sub-left-eye images 231L and the plurality of 1 st sub-right-eye images 231R are included in the 1 st display region 21 as one parallax image. The controller 50 is configured to be able to control the 1 st barrier region 31 of the barrier panel 30 such that, in the display panel 20, the display region of the plurality of 1 st sub-left-eye images 231L includes the plurality of left-eye viewing regions 21L, and the display region of the plurality of 1 st sub-right-eye images 231R includes the plurality of right-eye viewing regions 21R. The controller 50 may be configured to control the barrier panel 30 so that the display regions of the plurality of 1 st sub-left-eye images 231L and the plurality of 1 st sub-right-eye images 231R coincide with the plurality of left-eye viewing regions 21L and the plurality of right-eye viewing regions 21R. The controller 50 may be configured to control the barrier panel 30 so that the plurality of left-eye viewing regions 21L and the plurality of right-eye viewing regions 21R include display regions of the plurality of 1 st sub-left-eye images 231L and the plurality of 1 st sub-right-eye images 231R, respectively.

As shown in fig. 9, the controller 50 is configured to cause the display panel 20 to display a frame in which the plurality of 2 nd sub-left-eye images 232L and the plurality of 2 nd sub-right-eye images 232R are included in the 1 st display region 21 as one parallax image. The controller 50 is configured to be able to control the 1 st barrier region 31 of the barrier panel 30 such that, in the display panel 20, the display region of the plurality of 2 nd sub-left-eye images 232L includes the plurality of left-eye viewing regions 21L, and the display region of the plurality of 2 nd sub-right-eye images 232R includes the plurality of right-eye viewing regions 21R. The controller 50 may be configured to control the barrier panel 30 so that the display regions of the plurality of 2 nd sub-left-eye images 232L and the plurality of 2 nd sub-right-eye images 232R coincide with the plurality of left-eye viewing regions 21L and the plurality of right-eye viewing regions 21R. The controller 50 may be configured to control the barrier panel 30 so that the plurality of left-eye viewing regions 21L and the plurality of right-eye viewing regions 21R include display regions of the plurality of 2 nd sub-left-eye images 232L and the plurality of 2 nd sub-right-eye images 232R, respectively.

In the case where the user separately views the frame of fig. 8 and the frame of fig. 9, respectively, the user visually recognizes one of the plurality of 1 st sub-left-eye images 231L and the plurality of 2 nd sub-left-eye images 232L as the plurality of left-eye images 23L. The user visually recognizes one of the plurality of 1 st sub right-eye images 231R and the plurality of 2 nd sub right-eye images 232R as the plurality of right-eye images 23R. In this case, the number of pixels in the X axis direction of each of the plurality of left-eye images 23L and the plurality of right-eye images 23R viewed by the user is 1/2 times or less of the total pixels.

In a case where the user can combine and view the frame of fig. 8 and the frame of fig. 9, the user can visually recognize the plurality of left-eye images 23L obtained by combining the plurality of 1 st sub-left-eye images 231L and the plurality of 2 nd sub-left-eye images 232L. The plurality of left-eye images 23L visually recognized by the user can be pixels larger than each of the plurality of 1 st sub-left-eye images 231L and the plurality of 2 nd sub-left-eye images 232L. The plurality of left-eye images 23L viewed by the user can be all pixels. The user can visually recognize the right-eye image 23R obtained by combining the plurality of 1 st sub-right-eye images 231R and the plurality of 2 nd sub-right-eye images 232R. The plurality of right-eye images 23R visually recognized by the user may be pixels larger than each of the plurality of 1 st sub-right-eye images 231R and the plurality of 2 nd sub-right-eye images 232R. The plurality of right-eye images 23R visually recognized by the user can be all pixels.

The controller 50 is configured to control the display panel 20 and the barrier panel 30 so that a user can visually recognize the frames of fig. 8 and 9 by displaying the frames as two consecutive frames on the display panel 20. Thus, the user can visually recognize the afterimage of the first displayed frame and the image of the second displayed frame as one image by matching them. As a result, in one embodiment, the user can recognize that both the full-pixel left-eye image 23L and the full-pixel right-eye image 23R are displayed. The synthesis of an image using an afterimage in the eyes of a user is also referred to as human synthesis.

When the frame of fig. 8 and the frame of fig. 9 are displayed on the display panel 20 as two consecutive frames, the controller 50 is configured to display a portion located in the 1 st display area 21 as two sub-frames. The sub-frames contain parallax images. In the frame of fig. 8, a portion located in the 1 st display area 21 is also referred to as a 1 st subframe. In the frame of fig. 9, a portion located in the 1 st display area 21 is also referred to as a 2 nd sub-frame. The controller 50 is configured to cause the display panel 20 to display frames such that one frame includes two sub-frames. In other words, the controller 50 is configured to display two frames displayed continuously with the 1 st display region 21 on the display panel 20 as one parallax image frame including the 1 st sub-frame and the 2 nd sub-frame. The controller 50 may be configured to control the 1 st barrier region 31 to be capable of matching with the parallax image displayed in the 1 st display region 21. The controller 50 may be configured to control the parallax image displayed in the 1 st display region 21 so as to match the plurality of right-eye visual recognition regions 21R and the plurality of left-eye visual recognition regions 21L formed by the 1 st barrier region 31.

The controller 50 may be configured to display the plurality of 2 nd sub-left-eye images 232L in the region where the plurality of 1 st sub-right-eye images 231R are displayed, at the timing of changing the display from the 1 st sub-frame to the 2 nd sub-frame. The controller 50 may be configured to display the plurality of 2 nd sub right-eye images 232R in the region where the plurality of 1 st sub left-eye images 231L are displayed at the same timing. This enables the display positions of the plurality of left-eye images 23L and the plurality of right-eye images 23R to be switched. The display positions of the plurality of left-eye images 23L are included in the display attributes of the plurality of left-eye images 23L. The display positions of the plurality of right-eye images 23R are included in the display attributes of the plurality of right-eye images 23R.

The controller 50 is configured to display the plane image frame including the plane image 24 in a portion of the displayed frame located in the 2 nd display area 22. The controller 50 is configured to control the 2 nd barrier area 32 of the barrier panel 30 in power matching with the plane image 24 displayed on the 2 nd display area 22.

The controller 50 is configured to control a portion located in the 2 nd display area 22 as two continuous plane image frames when the frame of fig. 8 and the frame of fig. 9 are displayed on the display panel 20 as two continuous frames.

One frame is configured to be displayed in the 1 st display area 21 and the 2 nd display area 22 at the same time. In other words, the frame rate of the portion displayed in the 1 st display area 21 is configured to be the same as the frame rate of the portion displayed in the 2 nd display area 22. The frame rate of the sub-frames of the parallax image frame displayed in the 1 st display area 21 is the same as the frame rate of the planar image frame displayed in the 2 nd display area 22. In other words, the frame rate of the parallax image frame displayed in the 1 st display area 21 is 1/2 times the frame rate of the planar image frame displayed in the 2 nd display area 22.

The image display device 10 according to the present embodiment can be configured such that a parallax image with little pixel degradation from all pixels is visually recognized by each eye of the user in the 1 st display region 21, and a planar image 24 with a large frame rate is visually recognized by the user in the 2 nd display region 22. As a result, the image quality of the image display apparatus 10 is improved.

The controller 50 is configured to be able to control the plurality of light transmitting portions 31T and the plurality of dimming portions 31S of the barrier panel 30 such that the plurality of right-eye viewing areas 21R are formed in the 1 st display area 21 in each of the 1 st sub-frame and the 2 nd sub-frame. The controller 50 may be configured to control the barrier panel 30 such that the plurality of right-eye viewing areas 21R formed by the 1 st sub-frame and the plurality of right-eye viewing areas 21R formed by the 2 nd sub-frame do not overlap with each other. The controller 50 is configured to be able to control the plurality of light-transmitting portions 31T and the plurality of light-reducing portions 31S of the barrier panel 30 so that the plurality of left-eye viewing areas 21L are formed in the 1 st display area 21 in each of the 1 st sub-frame and the 2 nd sub-frame. The controller 50 may be configured to be able to control the barrier panel 30 such that the plurality of left-eye viewing areas 21L formed by the 1 st sub-frame and the plurality of left-eye viewing areas 21L formed by the 2 nd sub-frame do not overlap each other. The controller 50 may be configured to cause the display panel 20 to display the plurality of right-eye images 23R and the plurality of left-eye images 23L in accordance with the plurality of right-eye viewing regions 21R and the plurality of left-eye viewing regions 21L formed.

In the present embodiment, the controller 50 may be configured to control the display panel 20 and the barrier panel 30 so that the positions of the eyes of the user are the same until a new parallax image frame is displayed during the period when one parallax image frame is displayed. In other words, when the positions of the eyes of the user are different between the 1 st sub-frame and the 2 nd sub-frame, the positions of the eyes in the respective sub-frames are assumed to be the same, and a plurality of right-eye visual recognition areas 21R are formed.

When the display panel 20 displays the 2 nd sub-frame included in the same parallax image frame next to the 1 st sub-frame, the controller 50 may be configured to be able to determine the positions of the plurality of right-eye viewing areas 21R in the 2 nd sub-frame based on the positions of the plurality of right-eye viewing areas 21R in the 1 st sub-frame. In this case, the controller 50 is configured to be able to determine the positions of the plurality of right-eye visual recognition areas 21R without depending on the positions of the eyes of the user.

When the display panel 20 displays the 1 st sub-frame of the new parallax image frame next to the 2 nd sub-frame, the controller 50 may be configured not to determine the positions of the plurality of right-eye viewing areas 21R in the 2 nd sub-frame based on the positions of the plurality of right-eye viewing areas 21R in the 2 nd sub-frame. In this case, the controller 50 is configured to determine the positions of the plurality of right-eye viewing areas 21R based on the positions of the eyes of the user without based on the positions of the plurality of right-eye viewing areas 21R in the previously displayed 2 nd sub-frame.

When the positions of the eyes of the user are different in the 1 st sub-frame and the 2 nd sub-frame, the right-eye visual recognition areas 21R can be formed in a plurality based on the positions of the eyes in the respective sub-frames. In this case, at least one of the plurality of 1 st sub-right eye images 231R displayed in the 1 st sub-frame and the plurality of 2 nd sub-right eye images 232R displayed in the 2 nd sub-frame can cause a phenomenon of being displayed offset with respect to the plurality of right-eye viewing regions 21R. This phenomenon is caused because the plurality of 1 st sub-right-eye images 231R and the plurality of 2 nd sub-right-eye images 232R do not overlap each other. When this phenomenon occurs, crosstalk occurs.

When the plurality of 2 nd sub-right-eye images 232R are changed according to the change in the positions of the eyes of the user, the plurality of 1 st sub-right-eye images 231R and the plurality of 2 nd sub-right-eye images 232R overlap at least partially. As a result, the image quality of the plurality of right-eye images 23R viewed from the user is degraded.

Although the display form of the plurality of right-eye images 23R in the plurality of right-eye viewing regions 21R has been described as the description relating to the right eye 5R, the display form of the plurality of left-eye images 23L in the plurality of left-eye viewing regions 21L can be described in the same manner as or similar to the description relating to the right eye 5R.

According to the image display device 10 of the present embodiment, the controller 50 is configured to be able to control the display panel 20 and the barrier panel 30 even when the positions of the eyes of the user are the same while one parallax image frame is displayed. This makes it difficult for crosstalk to occur and for the quality of an image viewed by a user to be degraded.

As shown in fig. 10, the image display system 1 according to one embodiment includes an image display device 10 and a reflecting member 60. The image display system 1 is configured to be able to cause the image display device 10 to display an image and to emit the image light. The image light is reflected by the reflecting member 60 along a path 62 indicated by a dotted line, and reaches the left eye 5L and the right eye 5R of the user. By configuring such that the image light can be incident on the eyes of the user, the user can visually recognize the image displayed on the image display device 10. The user visually recognizes the image light reflected by the reflecting member 60, and visually recognizes the image displayed by the image display device 10 as the virtual image 10Q. The virtual image 10Q is positioned in front of a path 62 connecting the left eye 5L and the right eye 5R of the user to the reflection member 60 and extending to the opposite side of the reflection member 60. The image Display system 1 may also be a Head Up Display (HUD). The image display system 1 and the image display apparatus 10 can provide a stereoscopic vision to the user by being viewed directly by the user.

The image display system 1 according to the present embodiment can be mounted on a mobile body. When the image display system 1 is mounted on a mobile body, the user of the image display system 1 may be a driver, an operator, or a fellow passenger of the mobile body. When the image display system 1 is mounted on a mobile body, a part of the configuration of the image display system 1 may be configured to be capable of being used in combination with other devices and components included in the mobile body. For example, the windshield of the mobile body may be configured to be able to also function as a part of the configuration of the image display system 1. The reflecting member 60 shown in fig. 1, for example, may be replaced by a windshield of a mobile body.

The "mobile body" in the present disclosure includes a vehicle, a ship, and an aircraft. The "vehicle" in the present disclosure includes an automobile and an industrial vehicle, but is not limited thereto, and may include a railway vehicle, a living vehicle, and a fixed-wing aircraft that travels on a sliding road. The automobile includes a passenger car, a truck, a bus, a two-wheeled vehicle, a trolley bus, and the like, but is not limited thereto, and may include other vehicles that run on a road. Industrial vehicles include agricultural and construction oriented industrial vehicles. Industrial vehicles include, but are not limited to, fork lift trucks and golf carts. Agricultural-oriented industrial vehicles include, but are not limited to, tractors, tillers, transplanters, binders, combine harvesters, and lawn mowers. Construction-oriented industrial vehicles include, but are not limited to, bull dozers, scrapers (scarers), excavators, lift trucks, dump trucks, and road rollers. The vehicle includes a vehicle driven by human power. In addition, the classification of the vehicle is not limited to the above. For example, an automobile may include industrial vehicles that can travel on roads, and the same vehicle may be included in a plurality of categories. The vessels in the present disclosure include marine jets, ships, and tankers. The aircraft in the present disclosure includes a fixed-wing aircraft and a rotary-wing aircraft.

The configuration according to the present disclosure is not limited to the above-described embodiments, and various modifications and changes can be made. For example, functions and the like included in each of the components can be logically rearranged, and a plurality of components and the like can be combined or divided into one.

The drawings illustrating the configuration according to the present disclosure are schematic drawings. The dimensional ratio and the like in the drawings do not necessarily coincide with the actual dimensional ratio.

In the present disclosure, the description of "1 st" and "2 nd" and the like is an identifier for distinguishing the structure. In the present disclosure, the components distinguished by the description of "1 st" and "2 nd" and the like can be replaced with the numbers in the components. For example, the 1 st area can be replaced with the 2 nd area by "1 st" and "2 nd" as identifiers. The change of identifiers takes place simultaneously. The structure can also be distinguished after the identifier is replaced. The identifier may be erased. The structure with the identifier removed is distinguished by reference numerals. The description based on the identifiers such as "1 st" and "2 nd" in the present disclosure is not used for the explanation of the order of the structures, and there is a basis for the identifiers with small numbers.

In the present disclosure, the X axis, the Y axis, and the Z axis are provided for convenience of description, and may be replaced with each other. The configuration according to the present disclosure is explained using an orthogonal coordinate system composed of an X axis, a Y axis, and a Z axis. The positional relationship of the respective structures according to the present disclosure is not limited to the orthogonal relationship.

-description of symbols-

1 image display system

5L left eye

5R Right eye

10 image display device

10Q virtual image

20 display panel

21L left eye viewing area

21R Right eye viewing area

22L left eye non-visual area

22R Right eye non-visual area

30 Barrier Panel

31 st barrier region

31T light transmission part

31S dimming part

32 nd barrier region 2

50 controller

60 reflective member

62 path.