Abstract: Embodiments of the present disclosure disclose an ultrasonic transducer substrate and a manufacturing method therefor, and a device. An ultrasonic transmitting structure can transmit ultrasonic waves, and an ultrasonic receiving structure can receive ultrasonic waves. Compared with an integrated transmitting and receiving structure in the prior art, transmitting and receiving structures provided separately in the present disclosure can be independently controlled. Moreover, in the present disclosure, the ultrasonic receiving structure surrounds the ultrasonic transmitting structure.

Abstract: A display substrate and a preparation method thereof, and a display apparatus. The display substrate includes a base substrate, at least one insulating film layer disposed on the base substrate, and a first electrode disposed on a side of the at least one insulating film layer away from the base substrate; wherein a concave-convex structure is disposed on a side of the at least one insulating film layer away from the base substrate, and there is an overlapping area between an orthographic projection of the concave-convex structure on the base substrate and an orthographic projection of the first electrode on the base substrate.

Abstract: A display substrate and a preparation method thereof, and a display apparatus. The display substrate includes a base substrate, at least one insulating film layer disposed on the base substrate, and a first electrode disposed on a side of the at least one insulating film layer away from the base substrate; wherein a concave-convex structure is disposed on a side of the at least one insulating film layer away from the base substrate, and there is an overlapping area between an orthographic projection of the concave-convex structure on the base substrate and an orthographic projection of the first electrode on the base substrate.

Abstract: A wiring substrate has a functional region and a peripheral region located on at least one side of the functional region. The wiring structure includes a substrate having a first surface; a plurality of signal lines located on the first surface and in the functional region, wherein the plurality of signal lines are arranged at intervals in a first direction and extend in a second direction, the first direction intersecting the second direction; and a plurality of dummy conductive patterns located on the first surface, wherein at least part of the dummy conductive patterns are located in the peripheral region, and the dummy conductive patterns are insulated from the plurality of signal lines.

Abstract: Provided is a method for stabilizing and immobilizing uranium at source via formation of a mineral film mediated by microorganisms. The method includes the following step: forming the mineral film on a surface of a uranium-containing waste through mediation by acidophilic iron-oxidizing microorganisms using an additional ferrous source.

Abstract: A liquid crystal phase shifter includes: a first substrate; a second substrate, provided opposite to the first substrate; a liquid crystal layer, provided between the first substrate and the second substrate; and a phase shift region, including a first electrode, a second electrode and a control circuit, where the first electrode is provided on a side of the first substrate close to the second substrate, the second electrode is provided on a side of the second substrate close to the first substrate, an orthographic projection of the second electrode on the first substrate partially overlaps with an orthographic projection of the first electrode on the first substrate, and the second electrode is grounded.

Abstract: A thin film transistor and an ultrasonic imaging base board. The thin film transistor includes: a substrate (100), and a first gate (101), a first gate insulation layer (102), a first active layer (103), a second gate insulation layer (104) and a second gate (105) stacked on a side of the substrate (100), and the first gate (101) is connected to the second gate (105).

Abstract: A phase shifter includes first and second dielectric substrates opposite to each other and a plurality of phase shift units between the first and the second dielectric substrates; the phase shift unit includes first and second electrode layers and an adjustable dielectric layer between the first and the second electrode layers; orthographic projections of the first and second electrode layers on the first dielectric substrate at least partially overlap each other, and at least one accommodation cell of the phase shift unit is defined in a region where the orthographic projections of the first and second electrode layers on the first dielectric substrate overlap each other; the adjustable dielectric layer is in at least the accommodation cell; and cell gaps of the accommodation cells of at least a part of the plurality of phase shift units are different from each other.

Abstract: A tunable phase shifter and a method for manufacturing the same, and a tunable phase shifting device. The phase shifter includes a first substrate, a second substrate, and a tunable dielectric layer between the first substrate and the second substrate; the first substrate includes a first base substrate and a first electrode on the first base substrate; the second substrate includes a second base substrate and a second electrode on the second base substrate; an orthographic projection of the first electrode on the first base substrate is at least partially overlapped with an orthographic projection of the second electrode on the first base substrate, and sheet resistances of materials of the first electrode and the second electrode are both less than or equal to 0.024?/?.

Abstract: A phase shifter includes a first substrate and a second substrate opposite to each other, and a tunable dielectric layer therebetween. The first substrate includes a first dielectric substrate and a first electrode on a side of the first dielectric substrate close to the tunable dielectric layer; the second substrate includes a second dielectric substrate and a second electrode on a side of the second dielectric substrate close to the tunable dielectric layer; the phase shifter includes a phase shift region and a peripheral region; the phase shift region includes overlapping regions; the first electrode and the second electrode are both in the phase shift region, and orthographic projections of the first electrode and the second electrode on the first dielectric substrate at least partly overlap with each other in the overlapping regions, to form overlapping capacitors.

Abstract: A display panel is provided. The display panel includes a plurality of subpixels, a plurality of antenna units, a color filter and a black matrix. The color filter includes a plurality of color filter blocks. An orthographic projection of a respective color filter block of the plurality of color filter blocks on a first base substrate at least partially overlaps with an orthographic projection of a third electrode on the first base substrate, and at least partially overlaps with an orthographic projection of a fourth electrode on the first base substrate. An orthographic projection of the black matrix on the first base substrate at least partially overlaps with an orthographic projection of a first electrode on the first base substrate, and at least partially overlaps with an orthographic projection of a second electrode on the first base substrate.

Abstract: A phase shifter, a manufacturing method thereof and an electronic device are provided. The phase shifter includes opposite first and second substrates, and a tunable dielectric layer and first isolation components therebetween. The first substrate includes a first dielectric substrate and a first electrode on a side of the first dielectric substrate close to the tunable dielectric layer; the second substrate includes a second dielectric substrate and a second electrode on a side of the second dielectric substrate close to the tunable dielectric layer; the phase shifter includes a phase shift region and a peripheral region; the phase shift region includes overlapping regions; the first electrode and the second electrode are both in the phase shift region, and orthographic projections of the first electrode and the second electrode on the first dielectric substrate at least partly overlap with each other in the overlapping regions, to form overlapping capacitors.

Abstract: A phase shifter, a phase shifter array, an antenna array and an electronic device are provided and belong to the field of communication technology. The phase shifter includes: first and second dielectric substrates opposite to each other, a first transmission line and a second transmission line on a side of the first dielectric substrate close to the second dielectric substrate, patch electrodes on a side of the second dielectric substrate close to the first dielectric substrate, and a tunable dielectric layer between a layer where the transmission lines are located and a layer where the patch electrodes are located; wherein orthographic projections of two ends of each patch electrode on the first dielectric substrate overlap with orthographic projections of the first and second transmission lines on the first dielectric substrate, respectively; and at least two of the plurality of patch electrodes are connected to different first bias voltage lines.

Abstract: A sound generating panel, a display device with a screen generating sound and a method for manufacturing a sound generating panel are provided. The sound generating panel includes sound generating unit groups, each of which includes sound generating units. Each sound generating unit includes a support layer with openings and two piezoelectric structures resonating through a cavity. Each sound generating unit group includes sound generating units with different radii to generate sound at different frequencies. Each of some sound generating unit groups includes ultrasonic detection units for detecting a distance between a listener and the sound generating panel. In the display device, the sound generating panel is on a display side of a display panel, and the sound generating panel is integrated to the display panel.

Abstract: Provided in the present disclosure are an ultrasonic transducer and a preparation method therefor, a sound generation structure, a fingerprint recognition structure and a display device. The ultrasonic transducer comprises: a substrate (1); a cavity (3) located on the substrate (1); at least two vibrating diaphragm layers located on the substrate (1), wherein the at least two vibrating diaphragm layers are stacked in the thickness direction of the substrate (1) and are both located on the side of the cavity (3) away from the substrate (1), and orthographic projections of the at least two vibrating diaphragm layers overlap with an orthographic projection of the cavity (3) on the substrate (1); and a first electrode (61) and a second electrode (62), which are respectively located on opposite sides of each vibrating diaphragm layer in the thickness direction.

Abstract: A sound generating panel, a display device with a screen generating sound and a method for manufacturing a sound generating panel are provided. The sound generating panel includes sound generating unit groups, each of which includes sound generating units. Each sound generating unit includes a support layer with openings and two piezoelectric structures resonating through a cavity, improving a sound pressure generated by the sound generating panel. Each sound generating unit group includes sound generating units with different radii, thereby realizing sound generating at different frequencies, and improving a sound effect of the sound generating panel. Each of some sound generating unit groups includes ultrasonic detection units for detecting a distance between a listener and the sound generating panel, so that an effect of automatically regulating and controlling a volume of sound is realized.

Abstract: A display panel is provided. The display panel includes a plurality of subpixels, a plurality of antenna units, a color filter and a black matrix. The color filter includes a plurality of color filter blocks. An orthographic projection of a respective color filter block of the plurality of color filter blocks on a first base substrate at least partially overlaps with an orthographic projection of a third electrode on the first base substrate, and at least partially overlaps with an orthographic projection of a fourth electrode on the first base substrate. An orthographic projection of the black matrix on the first base substrate at least partially overlaps with an orthographic projection of a first electrode on the first base substrate, and at least partially overlaps with an orthographic projection of a second electrode on the first base substrate.

Abstract: A driving backplane, a transfer method for a light-emitting diode chip (21), and a display apparatus. The driving backplane comprises: a base substrate (10), a driving circuit, a plurality of electromagnetic structures (13), and a plurality of contact electrodes (12). The plurality of electromagnetic structures (13) in the driving backplane are symmetrically arranged relative to a first straight line (L1) and a second straight line (L2). A current signal can be applied to each electromagnetic structure (13) by means of the driving circuit. Stress generated by a transfer carrier plate (20) according to the magnetic force of each electromagnetic structure (13) moves the transfer carrier plate (20). When the transfer carrier plate (20) is stress balanced in each direction parallel to the surface of the transfer carrier plate (20), the light-emitting diode chip (21) is precisely aligned to corresponding contact electrodes (12).

Abstract: A near-to-eye display device and wearable apparatus are provided. The near-to-eye display device includes: pixel islands and micro-lenses in one-to-one correspondence with the pixel islands; wherein each pixel island emits light to a corresponding micro-lens so that the light reaches a predetermined viewing position after passing through the corresponding micro-lens. The near-to-eye display device further includes: super-lens units each including at least one super-lens; wherein the super-lens units are in one-to-one correspondence with the pixel islands; each super-lens unit is on a side of a corresponding pixel island proximal to the corresponding micro-lens, and an orthogonal projection of the super-lens unit on a plane where the corresponding pixel island is located covers the corresponding pixel island. The super-lens unit converges light, which is within a predetermined angle, emitted by the corresponding pixel island, to reduce a diffusion angle of the light emitted by the corresponding pixel island.

Abstract: A display panel includes an array substrate. The array substrate includes: a first flexible substrate; a planarization layer disposed on the first flexible substrate and provided with a groove; a source-drain electrode portion disposed in the groove, a surface of the source-drain electrode portion away from the first flexible substrate being flush with a surface of the planarization layer; an organic semiconductor portion disposed on a side of the source-drain electrode portion and the planarization layer away from the first flexible substrate; a gate insulating portion disposed on a side of the organic semiconductor portion away from the first flexible substrate; and a first gate disposed on a side of the gate insulating portion away from the first flexible substrate.