Abstract: A display substrate includes multiple light-emitting units. At least one light-emitting unit includes a first light-emitting device that emits first-color light and a second light-emitting device that emits second-color light. The display substrate displays a first color in a first view angle range smaller than a first view angle, and displays a second color in a second view angle range larger than a second view angle. Or, the display substrate displays the second color in the first view angle range smaller than the first view angle, and displays the first color in the second view angle range larger than the second view angle. The view angle is an included angle between a line of sight of a viewer and a normal of a viewing region in the display substrate, and the second view angle is larger than the first view angle.

Abstract: The display panel includes: a substrate and a base plate that face each other; a plurality of light emitting units that are arranged in an array, wherein the light emitting units are arranged between substrate and base plate; and a plurality of scattering components that are arranged in an array, wherein the scattering components are disposed on light exiting sides of the light emitting units, each of the scattering components includes at least one scattering unit, the scattering unit includes a matrix and a plurality of scattering particles that are disposed on one side of the matrix, and particle sizes of the scattering particles and distances between orthographic projections of the scattering particles on the substrate and a center projection satisfy a relation of positive correlation, wherein the center projection refers to an orthographic projection of a center of each of the light emitting units on the substrate.

Abstract: An array substrate includes pixel regions each including at least one sub-pixel. The sub-pixel includes: a light-emitting unit and a signal line corresponding thereto. The signal line extends along a second direction. The light-emitting unit includes a first electrode. The pixel regions include first and second pixel regions adjacent to each other in a first direction. The at least one sub-pixel at least includes a sub-pixel of a first light-emitting color. Each sub-pixel includes a first area and a second area respectively on two sides of a virtual center line. The virtual center line passes through a center of the light-emitting unit in the first direction and extends along the second direction. In sub-pixels of the first light-emitting color of the first and second pixel regions, projections of signal lines on the base substrate fall into projections of the first and second areas on the base substrate, respectively.

Abstract: A display substrate includes an underlaying substrate, a display structure layer arranged on the underlaying substrate, and a light regulation layer arranged at a light exiting side of the display structure layer. The display structure layer includes multiple sub-pixels. An orthographic projection of the light regulation layer on the underlaying substrate does not overlap with opening regions of the multiple sub-pixels. The light regulation layer is configured to adjust an emergent direction of light of at least one color emitted from the display structure layer.

Abstract: A display substrate, a preparation method and a brightness compensation method therefor, and a display apparatus are provided. The display substrate includes a drive structure layer disposed on a substrate, a light-emitting element disposed on the drive structure layer, and a light detection unit which is disposed on the light-emitting element and is configured to detect the brightness of the light-emitting element, wherein the drive structure layer includes a pixel drive circuit, the light-emitting element includes a first electrode, an organic functional layer and a second electrode which are stacked on the drive structure layer, and the first electrode is connected to the pixel drive circuit; and the light detection unit includes a third electrode, a photosensitive active layer and a fourth electrode which are stacked.

Abstract: A display substrate includes multiple light-emitting units. At least one light-emitting unit includes a first light-emitting device that emits first-color light and a second light-emitting device that emits second-color light. The display substrate displays a first color in a first view angle range smaller than a first view angle, and displays a second color in a second view angle range larger than a second view angle. Or, the display substrate displays the second color in the first view angle range smaller than the first view angle, and displays the first color in the second view angle range larger than the second view angle. The view angle is an included angle between a line of sight of a viewer and a normal of a viewing region in the display substrate, and the second view angle is larger than the first view angle.

Abstract: A display substrate, a preparation method and a brightness compensation method therefor, and a display apparatus are provided. The display substrate includes a drive structure layer disposed on a substrate, a light-emitting element disposed on the drive structure layer, and a light detection unit which is disposed on the light-emitting element and is configured to detect the brightness of the light-emitting element, wherein the drive structure layer includes a pixel drive circuit, the light-emitting element includes a first electrode, an organic functional layer and a second electrode which are stacked on the drive structure layer, and the first electrode is connected to the pixel drive circuit; and the light detection unit includes a third electrode, a photosensitive active layer and a fourth electrode which are stacked.

Abstract: A display substrate, including: a plurality of sub-pixels arranged on a first surface of a base substrate; and a plurality of signal lines arranged on the base substrate and arranged in the same layer as a source and a drain of a transistor of a pixel driving circuit of the sub-pixel. The plurality of signal lines include at least first signal lines extending in a first direction and are spaced apart in a second direction intersecting the first direction. The plurality of sub-pixels include a first sub-pixel, orthographic projections of two first side edge portions opposite in the second direction of a first electrode of the first sub-pixel on the base substrate partially overlap with orthographic projections of two adjacent first signal lines on the base substrate, respectively, so that a first inclined surface of the first electrode of the first sub-pixel is recessed toward the first surface.

Abstract: An organic electroluminescence display panel a manufacturing method thereof, and a display device are described. Each sub-pixel in the display panel includes a first electrode layer and a second electrode layer that are arranged oppositely, and an organic light-emitting function layer, and at least one of the sub-pixels further includes a light-absorbing layer disposed on a side of the second electrode layer away from the organic light emitting function layer. The light-absorbing layer absorbs the wavelength band where the tailing peak of the emission spectrum curve is located.

Abstract: The present disclosure provides an organic electroluminescent device, a display substrate including the organic electroluminescent device, and a display apparatus including the display substrate. The organic electroluminescent device includes an anode, a cathode, and a light emitting layer between the anode and the cathode, wherein a hole transport layer is provided between the anode and the light emitting layer and includes a hole transport material and a P-type doping material, electrons of the highest occupied molecular orbit of the P-type doping material are excitable to the lowest unoccupied molecular orbit of the P-type doping material under the excitation of light to cause an electron transfer reaction from the highest occupied molecular orbit of the hole transport material to the highest occupied molecular orbit of the P-type doping material.

Abstract: A temperature sensor, a temperature monitoring method, and a temperature monitoring device are provided. The temperature sensor includes: at least one electroluminescent device, and a power supply device electrically coupled to the electroluminescent device. The power supply device is configured to provide a turn-on voltage of the electroluminescent device at a predetermined temperature to the electroluminescent device.

Abstract: The present disclosure provides an organic electroluminescent device, a display substrate including the organic electroluminescent device, and a display apparatus including the display substrate. The organic electroluminescent device includes an anode, a cathode, and a light emitting layer between the anode and the cathode, wherein a hole transport layer is provided between the anode and the light emitting layer and includes a hole transport material and a P-type doping material, electrons of the highest occupied molecular orbit of the P-type doping material are excitable to the lowest unoccupied molecular orbit of the P-type doping material under the excitation of light to cause an electron transfer reaction from the highest occupied molecular orbit of the hole transport material to the highest occupied molecular orbit of the P-type doping material.

Abstract: A high-efficiency high-power ring laser amplifier includes four polarizers, four amplifiers, fours lens, two filter apertures, two electro-optic switches, a mirror, a wavefront corrector. A bidirectional ring laser amplifier configuration with twin pulses is suitable for any type of gain media and pumping configurations. This amplifier configuration can effectively improve the extraction efficiency of the gain medium. The amplification configuration proposed by the present invention patent can realize the ring amplification for any number of rounds in principle, and can effectively control quality of the output laser beam and relax the restriction on the injected energy. The two spatial filters in the novel high-efficiency high-power ring laser amplifier of the present invention patent can effectively removing the spatial modulations in the laser beams, and the first and second spatial filters reimage the beam at wavefront corrector to mirror which can effectively inhibit the diffraction effect.

Abstract: A high-efficiency high-power ring laser amplifier includes four polarizers, four amplifiers, fours lens, two filter apertures, two electro-optic switches, a mirror, a wavefront corrector. A bidirectional ring laser amplifier configuration with twin pulses is suitable for any type of gain media and pumping configurations. This amplifier configuration can effectively improve the extraction efficiency of the gain medium. The amplification configuration proposed by the present invention patent can realize the ring amplification for any number of rounds in principle, and can effectively control quality of the output laser beam and relax the restriction on the injected energy. The two spatial filters in the novel high-efficiency high-power ring laser amplifier of the present invention patent can effectively removing the spatial modulations in the laser beams, and the first and second spatial filters reimage the beam at wavefront corrector to mirror which can effectively inhibit the diffraction effect.