Abstract: A display substrate is provided, including: a base substrate; a plurality of sub-pixels arranged on the base substrate in an array in a row direction and a column direction; a plurality of post spacers arranged at intervals on the base substrate, wherein the plurality of post spacers include at least one main post spacer and a plurality of sub post spacers, and each main post spacer has a height greater than that of each sub post spacer. Each sub-pixel has at most one post spacer provided therein, the plurality of sub-pixels include a main sub-pixel provided with the main post spacer and a sub sub-pixel provided with the sub post spacer, and the plurality of sub-pixels further include at least one mark sub-pixel adjacent to the main sub-pixel in the row direction or the column direction, the at least one mark sub-pixel is provided with no post spacer.

Abstract: A display substrate is provided, including: a base substrate; a plurality of sub-pixels arranged on the base substrate in an array in a row direction and a column direction; a plurality of post spacers arranged at intervals on the base substrate, wherein the plurality of post spacers include at least one main post spacer and a plurality of sub post spacers, and each main post spacer has a height greater than that of each sub post spacer. Each sub-pixel has at most one post spacer provided therein, the plurality of sub-pixels include a main sub-pixel provided with the main post spacer and a sub sub-pixel provided with the sub post spacer, and the plurality of sub-pixels further include at least one mark sub-pixel adjacent to the main sub-pixel in the row direction or the column direction, the at least one mark sub-pixel is provided with no post spacer.

Abstract: Disclosed are a near-eye display device and a near-eye display system. The excitation light source structure provides excitation light to the first waveguide structure, and the outgoing coupling grating structure corresponding to the first waveguide structure receiving the excitation light may be further irradiated by the excitation light, and be excited and output the light with a pixel color corresponding to the first waveguide structure. That is, the outgoing coupling grating structure corresponding to the first waveguide structure receiving the excitation light can derive the light with the corresponding pixel color emitted by the projection-based display, and be excited by the excitation light emitted by the excitation light source structure to output light with a pixel color corresponding to the first waveguide structure.

Abstract: A holographic optical apparatus includes a beam splitting component, a transmission assembly, a focal length modulation component and an optical element. The beam splitting component splits received light into reference light and signal light that are coherent light, and outputs the reference light and the signal light. The focal length modulation component includes a plurality of local length modulation regions with different focal lengths. The optical element includes a recording medium layer with a plurality of recording regions, and each recording region is located in a light-exit path of a focal length modulation region. The transmission assembly is disposed in a light-exit path of the beam splitting component, transmit the reference light to the plurality of recording regions and transmit the signal light to the plurality of focal length modulation regions.

Abstract: The present disclosure provides a light field display device. The light field display device includes a plurality of imaging modules. Each of the imaging modules includes a liquid crystal lens array and a display screen, the liquid crystal lens array is disposed on a light exit side of the display screen, and images of the plurality of imaging modules are parallel to each other.

Abstract: A holographic optical element and a manufacturing method thereof, an image reconstruction method, and augmented reality glasses are disclosed. The holographic optical element includes a substrate, and a recording material layer in which at least two groups of interference fringes are recorded; each group includes a first interference fringe formed by a first signal light and a first reference light respectively incident from opposite sides of the recording material layer, and a second interference fringe formed by a second signal light and a second reference light respectively incident from opposite sides of the recording material layer; the second signal light passes through a lens before incidence; incident angles of the first signal light and the second reference light are equal; incident directions of the first signal light corresponding to respective groups are different, and focal lengths of the lenses are not equal.

Abstract: A display substrate is provided, including: a base substrate; a plurality of sub-pixels arranged on the base substrate in an array in a row direction and a column direction; a plurality of post spacers arranged at intervals on the base substrate, wherein the plurality of post spacers include at least one main post spacer and a plurality of sub post spacers, and each main post spacer has a height greater than that of each sub post spacer. Each sub-pixel has at most one post spacer provided therein, the plurality of sub-pixels include a main sub-pixel provided with the main post spacer and a sub sub-pixel provided with the sub post spacer, and the plurality of sub-pixels further include at least one mark sub-pixel adjacent to the main sub-pixel in the row direction or the column direction, the at least one mark sub-pixel is provided with no post spacer.

Abstract: Disclosed are a near-eye display device and a near-eye display system. The excitation light source structure provides excitation light to the first waveguide structure, and the outgoing coupling grating structure corresponding to the first waveguide structure receiving the excitation light may be further irradiated by the excitation light, and be excited and output the light with a pixel color corresponding to the first waveguide structure. That is, the outgoing coupling grating structure corresponding to the first waveguide structure receiving the excitation light can derive the light with the corresponding pixel color emitted by the projection-based display, and be excited by the excitation light emitted by the excitation light source structure to output light with a pixel color corresponding to the first waveguide structure.

Abstract: A holographic optical element and a manufacturing method thereof, an image reconstruction method, and augmented reality glasses are disclosed. The holographic optical element includes a substrate, and a recording material layer in which at least two groups of interference fringes are recorded; each group includes a first interference fringe formed by a first signal light and a first reference light respectively incident from opposite sides of the recording material layer, and a second interference fringe formed by a second signal light and a second reference light respectively incident from opposite sides of the recording material layer; the second signal light passes through a lens before incidence; incident angles of the first signal light and the second reference light are equal; incident directions of the first signal light corresponding to respective groups are different, and focal lengths of the lenses are not equal.

Abstract: A display panel includes: a substrate; a plurality of first grooves formed in a surface of the substrate; a second metal layer, a dielectric layer and a first metal electrode layer disposed in sequence within each of the plurality of first grooves; electronic ink filled within each of the plurality of first grooves; a first encapsulation substrate disposed on the surface of the substrate provided with the plurality of first grooves; and a plurality of point electrodes disposed on the first encapsulation substrate. The first metal electrode layer is semi-transmissive, the dielectric layer is light-transmissive, and the second metal layer is non-transmissive. The electronic ink includes black charged particles. The plurality of first grooves are in one-to-one correspondence with the plurality of point electrodes.

Abstract: A holographic optical apparatus includes a beam splitting component, a transmission assembly, a focal length modulation component and an optical element. The beam splitting component splits received light into reference light and signal light that are coherent light, and outputs the reference light and the signal light. The focal length modulation component includes a plurality of local length modulation regions with different focal lengths. The optical element includes a recording medium layer with a plurality of recording regions, and each recording region is located in a light-exit path of a focal length modulation region. The transmission assembly is disposed in a light-exit path of the beam splitting component, transmit the reference light to the plurality of recording regions and transmit the signal light to the plurality of focal length modulation regions.

Abstract: A display system includes: an optical waveguide, which has a first surface and a second surface in parallel with the first surface, wherein the first surface includes a light incident region and a light emergent region, and incident light from the light incident region is propagated in the optical waveguide and then is emitted from the light emergent region; and a squeezed light field module, configured to synthesize a squeezed light field including a displayed image and emit the squeezed light field to the light incident region.

Abstract: The present disclosure provides a light field display device. The light field display device includes a plurality of imaging modules. Each of the imaging modules includes a liquid crystal lens array and a display screen, the liquid crystal lens array is disposed on a light exit side of the display screen, and images of the plurality of imaging modules are parallel to each other.

Abstract: A stereoscopic display device and a stereoscopic display control method are provided. The stereoscopic display device includes a display unit and a layering-control unit on a light exiting side of the display unit, wherein, the layering-control unit comprises a microlens drive electrode array and a microlens array being controllable, and wherein microlenses in the microlens array being controllable are driven by drive electrodes of the microlens drive electrode array and exhibit respective focal lengths corresponding to voltages of the drive electrodes of the microlens drive electrode array.

Abstract: The embodiments of the disclosure relate to a display unit, a pixel circuit and a driving method and a display panel thereof. The display unit comprises a display pixel unit for displaying images, and an imaging pixel unit for acquiring images. The imaging pixel unit comprises a photosensitive element and a filter element located on the photosensitive element.

Abstract: There is disclosed a three-dimensional display device including: a micro LED display panel, a light control component arranged at a light-emitting side of the micro LED display panel, and a control component electrically connected with the micro LED display panel and the light control component respectively; where the control component is configured to control the micro LED display panel to display, and to control the light control component to generate a parallax barrier matching with the micro LED display panel, in a three-dimensional display mode. The control component controls the light control component to generate the parallax barrier matching with the micro LED display panel, while controlling the micro LED display panel to display, and when light rays emitted by the micro LED display panel pass through the parallax barrier, a three-dimensional image can be displayed, so that a three-dimensional display can be achieved on the micro LED display panel.

Abstract: A stereoscopic display device and a stereoscopic display control method are provided. The stereoscopic display device includes a display unit and a layering-control unit on a light exiting side of the display unit, wherein, the layering-control unit comprises a microlens drive electrode array and a microlens array being controllable, and wherein microlenses in the microlens array being controllable are driven by drive electrodes of the microlens drive electrode array and exhibit respective focal lengths corresponding to voltages of the drive electrodes of the microlens drive electrode array.

Abstract: The present disclosure discloses a backlight and a manufacturing method thereof, a light guide plate and a manufacturing method thereof and a display device. The backlight is a direct type backlight, and the backlight includes: a light guide plate having a main body of a plate shape, a plurality of light emitting units that are placed toward to a plane side of the light guide plate; where the light guide plate comprises a Quantum Dot (QD) layer on a first surface of the main body wherein the first surface is substantially flat.

Abstract: A display panel includes: a substrate; a plurality of first grooves formed in a surface of the substrate; a second metal layer, a dielectric layer and a first metal electrode layer disposed in sequence within each of the plurality of first grooves; electronic ink filled within each of the plurality of first grooves; a first encapsulation substrate disposed on the surface of the substrate provided with the plurality of first grooves; and a plurality of point electrodes disposed on the first encapsulation substrate. The first metal electrode layer is semi-transmissive, the dielectric layer is light-transmissive, and the second metal layer is non-transmissive. The electronic ink includes black charged particles. The plurality of first grooves are in one-to-one correspondence with the plurality of point electrodes.

Abstract: There is disclosed a three-dimensional display device including: a micro LED display panel, a light control component arranged at a light-emitting side of the micro LED display panel, and a control component electrically connected with the micro LED display panel and the light control component respectively; where the control component is configured to control the micro LED display panel to display, and to control the light control component to generate a parallax barrier matching with the micro LED display panel, in a three-dimensional display mode. The control component controls the light control component to generate the parallax barrier matching with the micro LED display panel, while controlling the micro LED display panel to display, and when light rays emitted by the micro LED display panel pass through the parallax barrier, a three-dimensional image can be displayed, so that a three-dimensional display can be achieved on the micro LED display panel.