阅读说明：本技术 一种显示体幕装置及显示方法和投影系统 (Display body screen device, display method and projection system ) 是由 刘鉴君 于 2020-12-11 设计创作，主要内容包括：本发明公开了一种显示体幕装置及显示方法和投影系统,包括显示体单元,显示体单元包括叠放的多片点阵聚合物分散液晶显示面板。将待显示的三维模型沿z轴进行切片,切片数与点阵聚合物分散液晶显示面板的数量相同,得到多个截面的透明通道数据；将透明通道数据转换为灰度图像,并将灰度图像在对应的点阵聚合物分散液晶显示面板上进行显示；z轴对应于点阵聚合物分散液晶显示面板的叠放方向。本发明提供的显示体幕装置及显示方法,以及投影系统,实现三维透明通道的物理直接显示；不需要特殊眼镜或者装置的辅助,直接看到有深度的立体影像；没有憾角,对观看距离和角度没有限制；通过投影的方式,可以显示彩色有深度的立体影像。(The invention discloses a display body screen device, a display method and a projection system. Slicing the three-dimensional model to be displayed along the z axis, wherein the number of slices is the same as that of the lattice polymer dispersed liquid crystal display panels, and obtaining transparent channel data of a plurality of sections; converting the transparent channel data into a gray image, and displaying the gray image on a corresponding dot matrix polymer dispersed liquid crystal display panel; the z-axis corresponds to the stacking direction of the lattice polymer dispersed liquid crystal display panel. The display body screen device, the display method and the projection system provided by the invention realize physical direct display of the three-dimensional transparent channel; the stereoscopic image with depth can be directly seen without the assistance of special glasses or devices; no regret angle, no restriction on viewing distance and angle; by means of projection, a color and depth stereoscopic image can be displayed.)

1. The display body screen device is characterized by comprising a display body unit, wherein the display body unit comprises a plurality of stacked dot matrix polymer dispersed liquid crystal display panels.

2. The display screen device of claim 1, wherein two adjacent dot matrix polymer dispersed liquid crystal display panels are stacked with each other or with a gap therebetween.

3. The display screen device of claim 1, wherein the distance between any two adjacent dot matrix polymer dispersed liquid crystal display panels in the display unit is the same or different.

4. The display screen device of claim 1, further comprising a controller for outputting a display signal to the dot matrix polymer dispersed liquid crystal display panel.

5. The display body screen apparatus of claim 1, further comprising a frame in which the display body unit is mounted.

6. The display body curtain apparatus of claim 1, further comprising a housing, the frame and the controller being disposed within the housing.

7. A projection system comprising a projection device and the display screen device of any of claims 1-6, wherein the projection device projects a predetermined three-dimensional pattern onto the display screen device.

8. The projection system of claim 7, further comprising a virtual camera that captures a view of the three-dimensional model to be displayed and projects the view through the projection device to the display screen device.

9. The projection system of claim 8, wherein the virtual camera is arranged behind the three-dimensional model to be displayed, and the images are projected and displayed after being mirrored; alternatively, the first and second electrodes may be,

the virtual camera is arranged in front of the three-dimensional model to be displayed.

10. The display method of the display screen device according to any one of claims 1 to 6, comprising:

slicing the three-dimensional model to be displayed along the z axis, wherein the number of slices is the same as that of the lattice polymer dispersed liquid crystal display panels, and obtaining transparent channel data of a plurality of sections;

converting the transparent channel data of a plurality of sections into gray images, and displaying the gray images of each section on the corresponding dot matrix polymer dispersed liquid crystal display panel;

wherein the z-axis corresponds to a stacking direction of the dot matrix polymer dispersed liquid crystal display panel.

Technical Field

The invention relates to the technical field of display, in particular to a display body screen device, a display method and a projection system.

Background

The stereoscopic display technology can be classified into a mirrored stereoscopic technology and a non-mirrored stereoscopic technology, wherein the non-mirrored stereoscopic technology is a future development direction. The stereoscopic technology without glasses can see the stereoscopic effect without wearing glasses, and is also popularly changed into naked eye stereoscopic technology, and the prior art comprises cylindrical lens gratings, slit gratings, holography, volume stereoscopic technology and the like.

The prior mirror-free stereo technology has the following defects, which limit the application of the technology:

large stereoscopic pictures cannot be realized or depth display by splicing into large stereoscopic pictures can be realized.

The lenticular grating and the slit grating have regret angles, so that the viewing distance and the viewing position are strictly limited, the definition is reduced, only half of a normal display or 1/8 is needed, the picture size is small, the viewing effect is not ideal, and vertigo is easily caused. The difficulty and the cost of realizing dynamic and true color of the holographic image are high. The body stereo can only realize the wire frame display, but cannot realize the normal color display.

In addition, with the development of research, Polymer Dispersed Liquid Crystals (PDLCs) have been developed, which have the following characteristics: when not electrified, the film is in an opaque state; when electrified, the transparent state is formed. The dot matrix polymer dispersed liquid crystal display panel (PDLC display panel) is a display panel made of PDLC materials, and can independently control atomization or transparency of each pixel point, so that a picture is displayed. The parameters of each pixel point of the image comprise data of four channels: RGBA, where RGB is the color channel and a is the clear channel.

Based on this, the prior art still remains to be improved.

Disclosure of Invention

In order to solve the above technical problems, embodiments of the present invention provide a display screen device, a display method and a projection system. To solve the drawbacks of the prior art.

In one aspect, a display screen device disclosed in the embodiments of the present invention includes a display unit, where the display unit includes a plurality of dot matrix polymer dispersed liquid crystal display panels stacked on top of each other.

Furthermore, in the display body unit, two adjacent dot matrix polymer dispersed liquid crystal display panels are laminated or stacked in a gap mode.

Further, in the display unit, the distance between any two adjacent dot matrix polymer dispersed liquid crystal display panels is the same or different.

The liquid crystal display further comprises a controller, wherein the controller is used for outputting display signals to the dot matrix polymer dispersed liquid crystal display panel.

Further, a frame is further included, and the display body unit is mounted in the frame.

Further, still include the casing, frame and controller setting are in the casing.

On the other hand, the embodiment of the invention also discloses a projection system, which comprises a projection device and the display body screen device, wherein the projection device projects a preset three-dimensional pattern to the display body screen device.

And further, the three-dimensional display device further comprises a virtual camera, and the virtual camera acquires a picture of the three-dimensional model to be displayed and projects the picture to the display screen device through the projection device.

Further, the virtual camera is arranged behind the three-dimensional model to be displayed, and the images are projected and displayed after being mirrored.

Further, the three-dimensional display device further comprises a virtual camera, and the virtual camera is arranged in front of the three-dimensional model to be displayed. In a third aspect, an embodiment of the present invention further discloses a display method of the display screen device, including:

slicing the three-dimensional model to be displayed along the z axis, wherein the number of slices is the same as that of the lattice polymer dispersed liquid crystal display panels, and obtaining transparent channel data of a plurality of sections;

converting the transparent channel data of a plurality of sections into gray images, and displaying the gray images of each section on the corresponding dot matrix polymer dispersed liquid crystal display panel;

wherein the z-axis corresponds to a stacking direction of the dot matrix polymer dispersed liquid crystal display panel.

By adopting the technical scheme, the invention at least has the following beneficial effects:

the display body screen device, the display method and the projection system provided by the invention realize physical direct display of the three-dimensional transparent channel; the stereoscopic image with depth can be directly seen without the assistance of special glasses or devices; no regret angle, no restriction on viewing distance and angle; by means of projection, a color and depth stereoscopic image can be displayed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a display screen device according to an embodiment of the present invention.

FIG. 2 is a schematic view showing a stacking direction of a dot matrix polymer dispersed liquid crystal display panel of a display device according to still another embodiment of the present invention.

FIG. 3 is a schematic view of a dot matrix polymer dispersed liquid crystal display panel of a display screen device according to another embodiment of the present invention.

FIG. 4 is a schematic structural diagram of a projection system according to an embodiment of the invention

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention are described in further detail with reference to the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.

As shown in fig. 1 to 4, some embodiments of the present invention disclose a display screen device and a projection system, the display screen device includes a display unit 1, and the display unit 1 includes a plurality of stacked dot matrix polymer dispersed liquid crystal display panels 11. Two adjacent dot matrix polymer dispersed liquid crystal display panels 11 can be laminated or stacked with a gap. The distance between any two adjacent dot matrix polymer dispersed liquid crystal display panels 11 may be set as required, and may be the same or different.

The display screen device and the projection system disclosed by the invention adopt the multilayer dot matrix Polymer Dispersed Liquid Crystal (PDLC) display panel, can realize a three-dimensional depth image, and a viewer can see a dynamic, high-definition, large-picture, no regret angle and a three-dimensional image with depth of an oversized three-dimensional picture without the assistance of special glasses or devices, and the viewing distance and the viewing position are not limited. In cooperation with projection, a color stereoscopic image can be seen.

The display screen device and the projection system disclosed in some preferred embodiments of the present invention further include a controller, and the controller is configured to output a display signal to the dot matrix polymer dispersed liquid crystal display panel 11. And may further include a frame in which the display body unit 1 is mounted, and a housing. The frame and the controller are disposed within the housing. The frame and the housing and the device mounting can be mounted as required and can be designed by the person skilled in the art without detailed description.

The embodiment of the invention also discloses a projection system, as shown in fig. 4, which includes a projection device 2 and the display screen device, where the projection device 2 projects a preset three-dimensional pattern to the display screen device. In a preferred embodiment, the three-dimensional display device further comprises a virtual camera, and the virtual camera acquires a picture of the three-dimensional model to be displayed and projects the picture to the display screen device through the projection device 2. The projection and projection mounting structure may be within the housing or external to the housing. The projection may be one or more. The projection is subjected to deformation correction and edge fusion, so that the projection input picture is consistent with the picture projected on the display screen device. The deformation correction of the projection and the edge fusion technique belong to the mature technology in the field and are not described in detail. The projector may be installed behind the display screen device or in front of the display screen device.

Specifically, the virtual camera may be disposed behind the three-dimensional model to be displayed, and the images are projected and displayed after being mirrored, and finally displayed on the back of the three-dimensional model. The virtual camera can also be arranged in front of the three-dimensional model to be displayed, and finally the front of the three-dimensional model is displayed.

The embodiment of the invention also discloses a display method of the display screen device, which comprises the following steps:

slicing the three-dimensional model to be displayed along the z axis, wherein the number of slices is the same as that of the lattice polymer dispersed liquid crystal display panels, and obtaining transparent channel data of a plurality of sections;

converting the transparent channel data of a plurality of sections into gray images, and displaying the gray images of each section on the corresponding dot matrix polymer dispersed liquid crystal display panel;

wherein the z-axis corresponds to a stacking direction of the dot matrix polymer dispersed liquid crystal display panel.

In some specific embodiments, first, the three-dimensional model to be displayed is sliced along the z-axis, and the number of slices is the same as the number N of display unit layers, so as to obtain transparent channel data of N cross sections. Wherein the z-axis is shown in FIG. 2, which is the stacking direction of the display body unit layer, i.e., the lattice polymer dispersed liquid crystal display panel, and is perpendicular to the display body unit layer. Next, the transparent channel image is converted into a gray image, as shown in fig. 3, which is completely transparent to black, completely opaque to white, and the intermediate value is a gray value calculated according to interpolation. N grayscale images are obtained. And displaying the gray images of the cross sections on the corresponding display unit layers.

The interpolation calculation can be performed as follows:

1) the value range of the transparent channel is as follows: 0-100, wherein 0 is completely transparent and 100 is completely opaque.

2) Grayscale image value range: 0-255, 0 being black and 255 being white.

3) The transparency value is 50, and the corresponding gray value is 127.5 by interpolation, and is 128 after rounding.

In summary, in the display screen device and the projection system disclosed in the embodiments of the present invention, the dot matrix polymer dispersed liquid crystal display panel is used in the display unit layer, and the display screen device and the projection system have a characteristic that the transparent or opaque state of each pixel point can be independently controlled. And (3) forming a display body screen device by stacking N (N is more than or equal to 2) display body unit layers. When stacked, there may or may not be gaps between the layers of display body elements. And outputting a display signal to each display body unit layer through the controller to realize the display of the display body screen. Therefore, physical direct display of the three-position transparent channel is realized, a stereoscopic image with depth can be directly viewed, and a color stereoscopic image with depth can be displayed in a projection mode.

It should be particularly noted that the various components or steps in the above embodiments can be mutually intersected, replaced, added or deleted, and therefore, the combination formed by the reasonable permutation and combination conversion shall also belong to the protection scope of the present invention, and the protection scope of the present invention shall not be limited to the embodiments.

The above is an exemplary embodiment of the present disclosure, and the order of disclosure of the above embodiment of the present disclosure is only for description and does not represent the merits of the embodiment. It should be noted that the discussion of any embodiment above is exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to those examples, and that various changes and modifications may be made without departing from the scope, as defined in the claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. Furthermore, although elements of the disclosed embodiments of the invention may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to these examples; within the idea of an embodiment of the invention, also technical features in the above embodiment or in different embodiments may be combined and there are many other variations of the different aspects of an embodiment of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of the embodiments of the present invention are intended to be included within the scope of the embodiments of the present invention.