Abstract: The present disclosure relates to an LED backlight structure having a backlight side and a light outgoing side opposite to each other, including: an LED array on a transparent substrate; a transparent encapsulation layer on a side of the transparent substrate with the LED array, and configured to encapsulate the LED array; wherein the LED array is configured to emit light, the LED backlight structure further includes: a reflection layer on a backlight side of the transparent substrate and configured to reflect light to the light outgoing side; and a first microstructure layer on the light outgoing side of the transparent substrate and the LED array, wherein the first microstructure layer is configured to scatter light incident on a surface of the first microstructure layer, so that a part of light passes through the first microstructure layer, and the rest of light is reflected by the first microstructure layer.

Abstract: The present disclosure relates to an LED backlight structure having a backlight side and a light outgoing side opposite to each other, including: an LED array on a transparent substrate; a transparent encapsulation layer on a side of the transparent substrate with the LED array, and configured to encapsulate the LED array; wherein the LED array is configured to emit light, the LED backlight structure further includes: a reflection layer on a backlight side of the transparent substrate and configured to reflect light to the light outgoing side; and a first microstructure layer on the light outgoing side of the transparent substrate and the LED array, wherein the first microstructure layer is configured to scatter light incident on a surface of the first microstructure layer, so that a part of light passes through the first microstructure layer, and the rest of light is reflected by the first microstructure layer.

Abstract: A fluid detection panel and a fluid detection device are disclosed. The fluid detection panel includes a fluid-driven substrate, a filter structure and a sensor. The filter structure is configured to filter light emitted by a light source; the fluid-driven substrate comprises a detection area, and is configured to enable a liquid sample to move to the detection area; the sensor is configured to receive light which is emitted by the light source and sequentially passes the filter structure and the detection area.

Abstract: The present disclosure relates to a dispersion apparatus. The dispersion apparatus may include an optical substrate; a grating layer on a first side of the optical substrate; and a light outlet layer on a second side of the optical substrate, the second side opposite the first side of the optical substrate. The grating layer is configured to perform dispersion of incident light into first-order diffracted beams having target wavelengths and transmit the first-order diffracted beams into the optical substrate, and wherein a diffraction angle of each of the first-order diffracted beams having the target wavelengths is smaller than a total reflection angle between the optical substrate and air. The light outlet layer is configured to extract the first-order diffracted beams having the target wavelengths in the optical substrate.

Abstract: The present disclosure provides a display device and a display method thereof. The display device includes a microlens array including a plurality of microlenses; and a display panel including a plurality of pixel islands, wherein the plurality of pixel islands are arranged in one-to-one correspondence with the plurality of microlenses, each pixel island includes a plurality of sub-pixels, light emitted by the plurality of sub-pixels of each pixel island enters a human eye through a microlens corresponding to the each pixel island and forms an image in the human eye, and regions where images formed by at least two pixel islands in the plurality of pixel islands via microlenses corresponding to the at least two pixel islands are located are connected.

Abstract: A display panel includes: a first substrate and a second substrate; a liquid crystal layer located between the first substrate and the second substrate; located on a side of the first substrate proximate to the liquid crystal layer; and a light-shielding pattern located on a side of the second substrate proximate to the liquid crystal layer. The second substrate has a light-shielding region shielded by the light-shielding pattern and light-exiting regions not shielded by the light-shielding pattern. A pixel electrode in the pixel electrodes is configured to converge light entering the pixel electrode from the first substrate; and the pixel electrode is used to control a deflection state of a liquid crystal in the liquid crystal layer, so that light passing through the pixel electrode is incident to the light-shielding pattern and/or a corresponding light-exiting region.

Abstract: A spectrometer and a micro-total analysis system are provided. The spectrometer includes a waveguide structure, a light source, a collimating mirror, a reflection grating, and a light extraction structure. The collimating mirror is configured to convert light, which is emitted from the light source, passes through the waveguide structure, and is incident on the collimating mirror, into collimating light. The reflection grating is configured to allow emergency angles of light of different wavelength ranges among the collimating light incident on the reflection grating to be different, so that the light of different wavelength ranges has an offset in the total reflection propagation process. The light extraction structure is located on the reflection surface of the waveguide structure through which the light of different wavelength ranges passes in the total reflection propagation process, so that the light of different wavelength ranges emits from the light extraction structure.

Abstract: A light collimation structure includes a light guide plate (1) and a light extraction unit (2) on the light guide plate (1). The light extraction unit (2) may be configured to take out lights having a filtered first color having a narrow band of spectrum, a filtered second color having a narrow band of spectrum, and a filtered third color having a narrow band of spectrum in the light guide plate (1) to provide a collimated first color light, a collimated second color light and a collimated third color light.

Abstract: The present disclosure provides a light source assembly including a light source and a bull's eye collimation structure disposed on a light exiting side of the light source and configured to collimate light beam emitted by the light source. The bull's eye collimation structure includes a metal layer including a sub-wavelength aperture and a plurality of annular recesses surrounding the sub-wavelength aperture, the plurality of annular recesses being arranged along a radial direction of the sub-wavelength aperture.

Abstract: The disclosure discloses a near-to-eye display method and apparatus and a wearable device. The apparatus includes a plurality of pixel island groups. Each pixel island group includes a plurality of pixel islands, wherein each pixel island corresponds to a micro lens. By adjusting a position of the micro lens relative to the corresponding pixel island in the pixel island group, on a plane where the micro lenses are located, or a position, of the pixel island in the pixel island group relative to the corresponding micro lens, on a plane where the pixel islands are located, so that imaging points in the imaging regions formed by at least part of different pixel islands in the pixel island groups do not overlap with each other and are arranged alternately.

Abstract: Provided are a display panel, a display apparatus, a driving method of the display panel, and a computer readable storage medium. The display panel includes: a first substrate and a second substrate being arranged in box alignment, point light sources in an array arrangement being arranged on a side of the first substrate away from the second substrate, optical coupling devices corresponding to the point light sources one by one being arranged on a side of the first substrate close to the second substrate, a grating layer being arranged on a side of the optical coupling devices away from the first substrate, a liquid crystal layer being arranged between the first substrate and the second substrate; and the optical coupling devices being arranged to reflect lights emitted by the corresponding point light sources, penetrating the first substrate, and reaching the optical coupling devices, into the first 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: An augmented reality display device and a pair of augmented reality glasses are provided. The augmented reality display device includes a substrate, an imaging element and a first optical element. The substrate includes a first side and a second side opposite to each other. The imaging element is configured to display a primary virtual image formed by virtual image light. The first optical element is configured to receive the virtual image light, orient the virtual image light to magnify the primary virtual image into a secondary virtual image, and make the virtual image light exit from the first optical element in a direction from the second side to the first side.

Abstract: The present disclosure relates to a display panel. The display panel includes: a light guide member, a light extraction member and a modulation member sequentially arranged along a first direction; and wherein the light extraction member is configured to extract light propagating within the light guide member in a collimated manner to one side of the light extraction member away from the light guide member, and the modulation member is configured to modulate a reflectance and transmittance of the light extracted in a collimated manner by the light extraction member within the modulation member.

Abstract: A three-dimensional display apparatus providing a plurality of view points at a view zone includes a directional display structure including a plurality of first sub-pixels configured to display a plurality of first sub-images, and a plurality of second sub-pixels configured to display a plurality of second sub-images; a plurality of grating structures including a plurality of first grating structures configured to perform diffraction of light such that the first sub-images are directionally transmitted, and a plurality of second grating structures configured to perform diffraction of light such that the second sub-images are directionally transmitted; a reflector between the directional display structure and the view zone reflecting the first sub-images being directionally transmitted to a first view point and the second sub-images being directionally transmitted to a second view point, thereby displaying a three-dimensional image.

Abstract: A display device and a method for controlling the display device are disclosed. The display device includes a backlight module and a liquid crystal cell on a light emitting side of the backlight module. The liquid crystal cell includes a first electrode, a second electrode disposed in a first direction opposite to the first electrode, a liquid crystal layer between the first electrode and the second electrode, and a diffractive optical element in the liquid crystal layer. A refractive index of the diffractive optical element is equal to a short-axis refractive index of a liquid crystal in the liquid crystal layer. The liquid crystal cell is divided into a first portion where the liquid crystal molecules are capable of rotating in a first plane and a second portion in a second direction perpendicular to the first direction where liquid crystal molecules are capable of rotating in a first plane.

Abstract: The present disclosure relates to a display panel and a display device. The display panel includes: a beam splitting member disposed between a light extracting member and a liquid crystal layer, for splitting the light extracted from the light extracting member into linearly polarized lights with polarization directions perpendicular to each other; and a modulating member disposed on a side of the beam splitting member away from the light extracting member, for modulating the linearly polarized light that is incident from the beam splitting member into the liquid crystal layer.

Abstract: A near-eye display device, comprising: a pixel island assembly, comprising a plurality of light-emitting elements; and a microlens array assembly, comprising a microlens array and an optical surface member, the optical surface member having an optically transmissive free-form surface, a planar total-reflection surface and an optically reflective free-form surface, each surface of which intersects with other two surfaces; wherein light emitted by the pixel island assembly enters the optical surface member through the optically transmissive free-form surface, is reflected by the planar total-reflection surface and by the optically reflective free-form surface in sequence, and then exits the optical surface member through the microlens array.

Abstract: A backlight module is provided. The backlight module includes a light guide plate; a plurality of reflective gratings on a first side of the light guide plate; and a plurality of reflectors on a second side of the light guide plate. A respective one of the plurality of reflective gratings is configured to diffract and reflect a portion of light totally reflected in the light guide plate into diffracted light transmitting across the light guide plate from the first side toward the second side. A portion of the diffracted light has a respective wavelength range to be received by a respective reflector. The respective one of the plurality of reflectors is configured to reflect the portion of the diffracted light having the respective wavelength range transmitting from the second side toward the first side to a position between the respective grating and an adjacent reflective grating.

Abstract: The present disclosure provides a collimation backlight source, a display device and a driving method thereof. The collimation backlight source includes a light guide plate, a plurality of light sources of different colors, and a light-extraction grating assembly in each light-extraction region on the surface of the light guide plate.