Abstract: A backlight module, including a light-emitting unit, emergent light of which passes through a packaging layer and then is transmitted to a surface of a first reflective layer, then passes through the surface of the first reflective layer and passes through the packaging layer again, enters a light-transmitting substrate from the packaging layer, and is emitted from the side of the light-transmitting substrate distant from the light-emitting unit. The thicknesses of the packaging layer and the light-transmitting substrate are effectively utilized to increase an optical path, thereby reducing the thickness of the backlight module. The first reflective layer is Lambertian. The side of the first reflective layer near the light-transmitting substrate and the side distant from the light-transmitting substrate allow the emergent light transmitted to the surface thereof to be scattered and homogenized to increase the optical path again, and can also function as diffusor plates.

Abstract: The present disclosure provides an optical waveguide structure, including: at least two layers of optical waveguides; a coupling-in grating configured to allow received parallel light beams to enter the optical waveguides, the parallel light beams being propagated in the optical waveguides in a total-reflection manner at a first propagation step; a beam splitting structure configured to allow a first part of light beams to be reflected in such a manner that the first part of light beams are propagated at a second propagation step, and allow a second part of light beams to be transmitted in such a manner that the second part of light beams are propagated at the first propagation step, the second propagation step being different from the first propagation step; and a coupling-out grating configured to extract the light beams propagated in total-reflection manner in the at least two layers of optical waveguides.

Abstract: The disclosure provides a display panel and a display apparatus. The display panel includes: an array substrate, an opposite substrate and a liquid crystal layer. The array substrate includes: a base substrate; a reflective layer on one side of the base substrate facing the opposite substrate, including a light transmission region and a reflective region; a buffer layer on one side of the reflective layer away from the base substrate; and a drive line layer on one side of the buffer layer away from the reflective layer, including a plurality of thin film transistors, wherein orthographic projections of channel regions of the thin film transistors on the base substrate are within an orthographic projection of the reflective region of the reflective layer on the base substrate.

Abstract: A near-eye display apparatus, including: a display screen including pixel island groups each including at least one pixel island which each includes pixel units; a micro-lens array disposed on a light-emitting side of the display screen, and including micro-lenses each corresponding to one pixel island, each micro-lens being configured for imaging an image displayed by the pixel island corresponding thereto; an imaging lens group disposed on a side of the micro-lens array away from the display screen and configured for collimating imaging light of the micro-lenses, the pixel island groups are configured for displaying partial images which form a complete image, and imaging field of view angles formed by outgoing light rays, of the pixel island groups adjacent to each other, passing through the micro-lenses corresponding to the pixel island groups and the imaging lens group are continuous with each other. A display method is further provided.

Abstract: The present disclosure provides a display substrate, a manufacturing method and a display device. The display substrate includes a base substrate and pixel units arranged in an array form on the base substrate. The base substrate includes a pixel circuitry formed on a substrate. Each pixel unit includes: a first electrode, a light-emitting layer, and a second electrode. The display substrate further includes a reflection layer between the first electrode and the base substrate, the first electrode is insulated from the reflection layer, and the first electrode is coupled to the pixel circuitry through a via hole penetrating through the reflection layer.

Abstract: A transparent display panel has a plurality of sub-pixel regions, which are divided into at least two display unit groups. The transparent display panel includes a first substrate and a second substrate assembled with each other, and a light exit control layer disposed therebetween. The first substrate includes a first base and a dimming component disposed on a side of the first base. The dimming component includes a plurality of dimming lenses. Each dimming lens is configured to transmit exit light of one sub-pixel region to human eyes and focus the exit light on a corresponding focal plane. The plurality of dimming lenses are configured to focus exit light of the at least two display unit groups on different focal planes. The focal planes are located at a side of the transparent display panel away from the human eyes.

Abstract: A displaying base plate and a manufacturing method thereof, and a displaying device. The displaying base plate includes a substrate, and a first electrode layer disposed on one side of the substrate, wherein the first electrode layer includes a first electrode pattern; a first planarization layer disposed on one side of the first electrode layer that is away from the substrate, wherein the first planarization layer is provided with a through hole, and the through hole penetrates the first planarization layer, to expose the first electrode pattern; and a second electrode layer, a second planarization layer and a third electrode layer that are disposed in stack on one side of the first planarization layer that is away from the substrate, wherein the second electrode layer is disposed closer to the substrate, the second electrode layer is connected to the first electrode pattern and the third electrode layer.

Abstract: The present disclosure provides a near-eye display device and a construction method for a meta lens. The near-eye display device includes a substrate (10), a meta lens array (40) provided on the side of the substrate (10) close to an eye (100), and a pixel island array (30) located on the side of the substrate (10) away from the eye (100). The pixel island array (30) includes a plurality of pixel islands. The meta lens array (40) includes a plurality of meta lenses. The orthographic projection of the lens center of the meta lens on the substrate (10) overlaps the orthographic projection of the pixel center of the pixel island on the substrate. The lens center is the geometric center of the meta lens, and the pixel center is the geometric center of the pixel island.

Abstract: A spectrometer and a fabrication method thereof. The spectrometer includes: a first base substrate; a second base substrate opposite to the first base substrate; a detection channel between the first base substrate and the second base substrate; a quantum dot light emitting layer on a side of the first base substrate that is close to the second base substrate, and including a plurality of quantum dot light emitting units; a black matrix on the side of the first base substrate that is close to the second base substrate, and configured to separate the plurality of quantum dot light emitting units; and a sensor layer, including a plurality of sensors, the plurality of sensors being in one-to-one correspondence with the plurality of quantum dot light emitting units.

Abstract: A light-emitting module, a display module and a display device are provided. The light-emitting module includes multiple light-emitting elements, a micro lens array disposed on a light-emitting side of the multiple light-emitting elements, and a low-refractive material layer disposed on a side of the micro lens array away from the multiple light-emitting elements, wherein a refractive index of the low-refractive material layer is smaller than a refractive index of the micro lens array; light emitted by the light-emitting element may be processed by the micro lens array and the low-refractive material layer to form a dot matrix light source which irradiates multiple preset opening regions which are disposed at intervals.

Abstract: Provided are a light-emitting module and a display apparatus. The light-emitting module may include a substrate, at least one light-emitting element located on a side of the substrate, and a first light-uniformizing component and a reflective layer disposed on a light-exit side of the light-emitting element; wherein, the first light-uniformizing component is configured to make light emitted by the light-emitting element be uniformly incident on the reflective layer; and the reflective layer is configured to reflect the light incident on the reflective layer toward a direction away from the light-exit side of the light-emitting element.

Abstract: An optical switch includes a plurality of micro-grooves, a micro-fluid disposed in each micro-groove of the plurality of micro-grooves, and a driving electrode disposed corresponding to the micro-fluid in each micro-groove. The driving electrode is configured to provide a voltage to a corresponding micro-fluid to control light transmittance of a region where the micro-fluid is located.

Abstract: A display panel and a manufacturing method thereof, and a display device. The display panel includes a light guide plate, an array substrate, a liquid crystal layer between the light guide plate and the array substrate, a plurality of light-extracting gratings located on one side of a light exit surface of the light guide plate, and a transparent protection layer between a film layer where the light-extracting gratings are located and the light guide plate. The light guide plate includes a plurality of light-extracting port areas, and transparent areas besides the light-extracting port areas; each light-extracting port area is provided with one light-extracting grating; the protection layer is at least provided on the transparent areas, and the protection layer is configured to prevent the light guide plate in the transparent areas from being excessively etched to form a plurality of depressions.

Abstract: Embodiments of the present disclosure provide a display panel, a driving method thereof and a display device. The display panel includes: a light guide plate, configured to propagate light incident at a set angle by total reflection; an opposite substrate, arranged opposite to the light guide plate; a liquid crystal layer, arranged between the light guide plate and the opposite substrate; and a plurality of light extraction structures. Each light extraction structure includes: a light taking grating arranged on a surface of the light guide plate, a first wire grid structure arranged between the light guide plate and the liquid crystal layer, a second wire grid structure arranged between the liquid crystal layer and the opposite substrate, and a first electrode structure and a second electrode structure arranged between the light guide plate and the opposite substrate.

Abstract: The present disclosure relates to a multifocal lens. The multifocal lens may include N liquid crystal panels in a stacked manner. The N liquid crystal panels may include an n-th liquid crystal panel, and the n-th liquid crystal panel may include an n-th converging element having an n-th focal length. N is a positive integer greater than or equal to 2, n is a positive integer, and 1?n?N. The n-th liquid crystal panel may be configured to be switchable between a converging state and a non-converging state. The N liquid crystal panels may be configured to make the multifocal lens to have switchable CN1+CN2+CN3+ . . . +CNN focal lengths, and the CN1+CN2+CN3+ . . . +CNN focal lengths are all different from one another.

Abstract: Embodiments of the present disclosure provide a display panel, a driving method thereof and a display device. The display panel includes: a light guide plate, configured to propagate light incident at a set angle by total reflection; an opposite substrate, arranged opposite to the light guide plate; a liquid crystal layer, arranged between the light guide plate and the opposite substrate; and a plurality of light extraction structures. Each light extraction structure includes: a light taking grating arranged on a surface of the light guide plate, a first wire grid structure arranged between the light guide plate and the liquid crystal layer, a second wire grid structure arranged between the liquid crystal layer and the opposite substrate, and a first electrode structure and a second electrode structure arranged between the light guide plate and the opposite substrate.

Abstract: The light extraction device, the detection equipment and the operation method thereof are provided. The light extraction device includes at least one light splitting unit, each of the at least one light splitting unit includes a color separation grating, configured to separate light incident on the color separation grating into a plurality of light beams that are collimated and propagated in different directions and have different colors; a first lens, disposed corresponding to the color separation grating and configured to converge the plurality of light beams; and a first pinhole, located on a side of the first lens away from the color separation grating and correspondingly arranged with the first lens. The first lens is configured to converge a light beam having a preset color in the plurality of light beams to the first pinhole and allow the light beam having the preset color to exit.

Abstract: A display device is disclosed, and the display device includes a display layer and a lens layer; the lens layer is provided on a light emergent side of the display layer, and includes at least one grating compound lens unit; the display layer includes at least one display pixel set, and the display pixel set is configured to emit light for imaging toward the grating compound lens unit during display; the grating compound lens unit is configured to optically image the display pixel set; and the grating compound lens unit is further configured to deflect the light for imaging, to make an image-space central visual field direction of the grating compound lens unit intersect with an extension direction of an optical axis of the grating compound lens unit, so that the display device has one or more viewpoints.

Abstract: Provided is a near-eye display device including: a base substrate including first and second surfaces opposite to each other, an optical element array on the first surface, and a pixel island array and a sensor array that are on the second surface and are coupled to each other. The pixel island array emits first pixel light to the optical element array, such that the first pixel light passes through the optical element array and then reaches a human eye. The sensor array receives light of the first pixel light reflected by the human eye, determines a position of a pupil center of the human eye according to an intensity distribution of the reflected light, determines pixels corresponding to the position of the pupil center in the pixel island array, and controls the pixels to emit second pixel light.

Abstract: Provided are a light-emitting substrate and a preparation method thereof, a light-emitting module, and a display module. The light-emitting substrate includes a substrate, a drive circuit layer located on a side of the substrate, at least one light-emitting element located on a side of the drive circuit layer away from the substrate, and a first reflective layer disposed on a side of the light-emitting element away from the substrate; the drive circuit layer includes multiple first wirings and second wirings which are disposed crosswise, and the first wirings and the second wirings form at least one light transmittance region.