阅读说明：本技术 电子设备、显示装置及其驱动方法 (Electronic device, display device, and driving method thereof ) 是由 洪涛 于 2020-02-24 设计创作，主要内容包括：本公开涉及一种电子设备、显示装置及显示装置的驱动方法,涉及显示技术领域。该显示装置包括显示面板、偏振转换层和透镜层。显示面板用于在一帧的时间内分时显示多个景深图像。偏振转换层设于显示面板的出光侧,用于将不同的景深图像的光线转换为不同偏振态的偏振光。透镜层设于偏振转换层背离显示面板的一侧,且包括多个透镜单元,每个透镜单元包括超表面透镜。(The disclosure relates to an electronic device, a display device and a driving method of the display device, and relates to the technical field of display. The display device includes a display panel, a polarization conversion layer, and a lens layer. The display panel is used for displaying a plurality of depth images in time within one frame. The polarization conversion layer is arranged on the light emitting side of the display panel and used for converting the light rays of different depth-of-field images into polarized light in different polarization states. The lens layer is arranged on one side, away from the display panel, of the polarization conversion layer and comprises a plurality of lens units, and each lens unit comprises a super-surface lens.)

A display device, comprising:

a display panel for displaying a plurality of depth images in time division within one frame;

the polarization conversion layer is arranged on the light emitting side of the display panel and is used for converting the light rays of different depth-of-field images into polarized light in different polarization states;

the lens layer is arranged on one side, away from the display panel, of the polarization conversion layer and comprises a plurality of lens units, and each lens unit comprises a super-surface lens.

The display device according to claim 1, wherein the range image includes a first range image and a second range image, and the polarization conversion layer is configured to convert light of the first range image into first polarized light and convert light of the second range image into second polarized light; the first polarized light and the second polarized light are circularly polarized light with opposite rotation directions.

The display device according to claim 2, wherein each of the lens units further comprises a microlens, the super surface lens is located between the microlens and the polarization conversion layer, and an image distance at which the lens unit images the first polarized light and the second polarized light satisfies the following condition:

wherein l₁An image distance for the lens unit to image the first polarized light; l₂An image distance for the lens unit to image the second polarized light;

f _ais the focal length of the microlens, f_bThe focal length of the super-surface lens to the first polarized light; -f_bThe focal length of the super-surface lens to the second polarized light;

d is the distance between the micro lens and the super surface lens, and D is the distance between the display panel and the super surface lens.

The display device according to claim 3, wherein the display panel includes a plurality of sub-pixels, and a depth of field range in which the lens unit images the first polarized light and the second polarized light satisfies the following condition:

wherein, Δ Z₁Depth of field for imaging the first polarized light by the lens unitRange, Δ Z₂A depth of field range for imaging the second polarized light by the lens unit; p_XIs the size of the sub-pixel; p_MLAIs the distance between two adjacent lens units.

The display device of claim 1, wherein each of the lenticular elements further comprises a microlens, the super surface lens being positioned between the microlens and the polarization conversion layer; the display panel comprises a plurality of pixel islands corresponding to the micro lenses one by one, and each pixel island comprises a plurality of sub-pixels arranged in an array; the plurality of sub-pixels are divided into a plurality of pixels, and each pixel comprises a plurality of sub-pixels with different colors.

The display device according to claim 5, wherein the sub-pixels of the same pixel island are of the same color, a plurality of the pixel islands are divided into a plurality of pixel island groups, each of the pixel island groups includes a plurality of pixel islands of different colors, and in the same pixel island group, the sub-pixels of the same relative position with the microlenses corresponding to the pixel islands constitute one pixel.

The display device of claim 6, wherein each of the pixels comprises three of the sub-pixels in a triangular distribution.

The display device according to claim 1, wherein the lens unit further includes a microlens, the number of the super surface lenses is plural, and each super surface lens is laminated between the microlens and the polarization conversion layer.

The display device according to claim 1, wherein each of the lenticular units further comprises a micro lens, the super surface lens is located between the micro lens and the polarization conversion layer, and a transparent first separation layer is disposed between the polarization conversion layer and the super surface lens; and a transparent second separation layer is arranged between the super-surface lens and the micro-lens.

The display device according to claim 1, wherein the display device further comprises:

the polarization control circuit is used for controlling the polarization conversion layer to convert the light rays of the different depth-of-field images into polarized light in different polarization states;

and the image rendering circuit is used for controlling the display panel to display a plurality of depth-of-field images in time within one frame.

The display device according to claim 5, wherein the micro lens of each of the lens units is of a unitary structure, and the super-surface lens of each of the lens units is of a unitary structure.

A driving method of a display device according to any one of claims 1 to 11, wherein the driving method comprises:

enabling the display panel to display each depth image in a time-sharing mode within one frame;

and controlling the polarization conversion layer to convert the light rays of the images with different depth of field into polarized light with different polarization states.

An electronic device comprising the display device according to any one of claims 1 to 11.