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: 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: 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: 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: A miniature full analysis device and a manufacturing method therefor are provided, the miniature full analysis device includes: a substrate; a main channel extending in a first direction; at least one secondary channel extending in a second direction intersecting the first direction, one end of the secondary channel is connected to the main channel, and the secondary channel is configured to be switched between a first state in which the detection light does not enter the secondary channel and a second state in which the detection light enters the secondary channel, and is transmitted in the second direction, the other end of the secondary channel has a reflective surface which is configured to reflect the detection light to a microfluidic sensing layer which is configured to carry a liquid to be analyzed and to detect the detection light passing through the liquid to be analyzed.

Abstract: A microfluidic apparatus is provided. The microfluidic apparatus includes a base substrate; a microfluidic device on the base substrate and including a plurality of micro fluidic channels; a plurality of light sources of different colors respectively emitting light of different wavelength ranges; a light extraction apparatus for extracting light respectively from the plurality of light sources of different colors and a plurality of photosensors. The light extraction apparatus includes a light guide plate having a plurality of light incident portions for respectively receiving light respectively incident from the plurality of light sources of different colors, the plurality of light incident portions being on a side of the light guide plate away from the microfluidic device; and a plurality of light extractors on the light guide plate.

Abstract: The present disclosure discloses a microfluidic device, a driving method and a microfluidic detection system. The microfluidic device includes: a substrate; two first optical waveguides disposed opposite each other on the substrate with an accommodating chamber defined between the two first optical waveguides; and a plurality of optical detection structures in the accommodating chamber. The first optical waveguide has a refractive index greater than a refractive index of a medium surrounding the first optical waveguide, thereby enabling light rays incident into an end of the first optical waveguide to propagate towards another end of the first optical waveguide in a total reflection mode.

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 backlight module, a method for manufacturing the same, and a liquid crystal display device, which realize a thin uniform backlight for liquid crystal display. The backlight module includes: a light guide plate including a light exit surface and a bottom surface opposite to the light exit surface; the bottom surface including an array of inverted pyramid grooves; and a plurality of point light sources located on a side of the light exit surface away from the bottom surface; wherein a light emitting surface of each point light source faces the light exit surface.

Abstract: A display panel, a display apparatus and a control method therefor. The electrode group included in the display panel is used for controlling, when loaded with a voltage, the refractive index of the liquid crystal layer, such that when the refractive index of the liquid crystal layer is less than the refractive index of the first substrate, light emitted by the light-emitting module is propagated by means of total reflection in the first substrate, and when the refractive index of the liquid crystal layer is greater than the refractive index of the first substrate, the light emitted by the light-emitting module is propagated toward the second substrate from the first substrate.

Abstract: A light guide structure is disclosed. The light guide structure includes a first waveguide layer having a first light incident surface and a first light exiting surface. The light guide structure includes a polarization beam-splitting structure on the first light exiting surface, configured to split light into first polarized light and second polarized light. The light guide structure includes a first polarization coupling grating disposed on the first light incident surface and configured to deflect the first polarized light, and a second waveguide layer having a second light incident surface and a second light exiting surface and disposed on the polarization beam-splitting structure. The light guide structure includes a second polarization coupling grating disposed between the second light incident surface and the polarization beam-splitting structure and configured to deflect the second polarized light.

Abstract: The present disclosure provides a display panel and a display device. The display panel includes a base substrate and light-shielding strips. The base substrate includes light-shielding regions and light-transmitting regions. The display panel further includes a backlight module including a light guide plate and light extraction gratings. The display panel further includes a first electrode layer, a second electrode layer, and a liquid crystal layer. The first and second electrode layers are configured to, in response to a control signal, control the liquid crystal layer to forms a plurality of liquid crystal grating periods. The liquid crystal within each of the plurality of liquid crystal grating periods includes a plurality of segments with different refractive indices, and the refractive indices of the plurality of segments progressively increase in a direction perpendicular to an extending direction of the first electrodes in the first electrode layer.

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: 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 miniature full analysis device and a manufacturing method therefor are provided, the miniature full analysis device includes: a substrate; a main channel extending in a first direction; at least one secondary channel extending in a second direction intersecting the first direction, one end of the secondary channel is connected to the main channel, and the secondary channel is configured to be switched between a first state in which the detection light does not enter the secondary channel and a second state in which the detection light enters the secondary channel, and is transmitted in the second direction, the other end of the secondary channel has a reflective surface which is configured to reflect the detection light to a microfluidic sensing layer which is configured to carry a liquid to be analyzed and to detect the detection light passing through the liquid to be analyzed.

Abstract: A light guide structure is disclosed. The light guide structure includes a first waveguide layer having a first light incident surface and a first light exiting surface. The light guide structure includes a polarization beam-splitting structure on the first light exiting surface, configured to split light into first polarized light and second polarized light. The light guide structure includes a first polarization coupling grating disposed on the first light incident surface and configured to deflect the first polarized light, and a second waveguide layer having a second light incident surface and a second light exiting surface and disposed on the polarization beam-splitting structure. The light guide structure includes a second polarization coupling grating disposed between the second light incident surface and the polarization beam-splitting structure and configured to deflect the second polarized light.

Abstract: A display device includes: an optical waveguide layer having a light-entering region and a light-exiting region; an optical element correspondingly arranged in the light-entering region and configured to emit at least two types of light beams having different image information, to transmit the at least two types of light beams to the light-entering region of the optical waveguide layer; at least two coupling gratings arranged on transmission paths of the at least two types of light beams in the optical waveguide layer, and configured to change a direction of each of the at least two types of light beams in the optical waveguide layer, to enable light beams in the at least two types of light beams in the optical waveguide layer to be transmitted to the light-exiting region, exit from the light-exiting region and be converged at at least one view point.

Abstract: A spectroscope includes a first substrate and a second substrate opposite to each other; a light introducing assembly on a side of the first substrate facing away from the second substrate; a temperature adjusting assembly between the first substrate and the second substrate; a liquid crystal dimming assembly between the first substrate and the second substrate, wherein the temperature adjusting assembly is configured to adjust a temperature of the liquid crystal dimming assembly, so as to adjust spectrum of light passing through the liquid crystal dimming assembly; a spectroscopic grating on the first substrate; a reflector on the second substrate and configured to reflect incident light introduced by the light introducing assembly to the spectroscopic grating; and a plurality of sensors configured to receive the incident light after being subjected a light splitting by the spectroscopic grating. A wavelength of the incident light received by each sensor is different.

Abstract: The present disclosure relates to the field of display technology, and provides a backlight module, a manufacturing method thereof, and a display device. The backlight module includes a base substrate, a collimation layer, and a plurality of light emitting elements. The collimation layer is disposed on one side of the base substrate, and a plurality of through holes distributed in an array are disposed on the collimation layer, and a side wall of each of the through holes can reflect light. The plurality of light emitting elements are disposed on the base substrate and located within the through holes. The backlight module provided by the present disclosure can improve the light efficiency of the backlight module in the premise of ensuring the collimation degree, at the same time, the backlight module has a simple structure and is easy to be processed.

Abstract: A light regulation device includes: a first substrate on which a first electrode layer is provided; a second substrate on which a second electrode layer is provided; and liquid crystals interposed between the first substrate and the second substrate. The first electrode layer includes a plurality of electrode units. Each of the electrode units includes a plurality of electrode strips. Each of the electrode strips is configured to be loaded a different driving voltage signal. The second electrode layer is configured to be loaded a common voltage signal. An exiting direction of light passing through liquid crystals at a position corresponding to each of the electrode units is deflected in the same direction.