Abstract: The disclosure provides a liquid crystal antenna including: a first substrate; a second substrate facing the first substrate; a third substrate facing the second substrate such that the second substrate is between the first substrate and the third substrate; a liquid crystal layer between the first substrate and the second substrate; a transmission line on a surface of the first substrate adjacent to the liquid crystal layer; a ground electrode on a surface of the second substrate adjacent to the liquid crystal layer; a feeder line and a radiation patch both on a surface of the third substrate, wherein the transmission line and the ground electrode form a signal transmission circuit, and the transmission line and the liquid crystal layer form a phase shifter. In addition, the disclosure also relates to a method for manufacturing the liquid crystal antenna and an electronic device including the liquid crystal antenna.

Abstract: A phase shifter and an antenna device are provided. The phase shifter includes a substrate, a signal line on the substrate, ground lines in pairs on the substrate, and a capacitance adjusting component. Two ground lines in a same pair of ground lines are on both sides of the signal line and spaced apart from the signal line, respectively. The capacitance adjusting component includes a film bridge, and both ends of the film bridge are on the two ground lines, respectively. The signal line is in a space enclosed by the film bridge and the substrate. The capacitance adjusting component is configured to adjust a capacitance between the film bridge and the signal line to a target capacitance when the capacitance adjusting component receives a bias voltage, and the target capacitance has a linear correlation with a magnitude of the bias voltage.

Abstract: There is provided a phase shifter including a substrate, a signal line on the substrate, ground lines disposed in pairs on the substrate, and at least one film bridge. Two ground lines of the ground lines are on two sides of the signal line and are respectively spaced apart from the signal line. Each film bridge includes a plurality of connection walls and a bridge floor structure that is opposite to the substrate. The connection walls are respectively on the two ground lines. The bridge floor structure includes a phase shifting electrode and at least one pair of adsorption electrodes respectively connected to two sides of the phase shifting electrode. The phase shifting electrode is opposite to the signal line. Two adsorption electrodes in each pair are respectively opposite to the two ground lines, and are respectively connected to the connection walls on the two ground lines.

Abstract: A detection substrate and a ray detector are disclosed. The detection substrate includes a base substrate; a plurality of detection pixel circuits, located on the base substrate; a first passivation layer, located on the side, facing away from the base substrate, of the detection pixel circuits; a planarization layer, located on the side, facing away from the base substrate, of the first passivation layer, where the surface of the side, facing away from the first passivation layer, of the planarization layer is a plane; and a plurality of photosensitive devices; where the photosensitive devices are electrically connected to the detection pixel circuits in a one-to-one correspondence through vias penetrating through the first passivation layer and the planarization layer, and each photosensitive device includes a first portion and a second portion.

Abstract: Some embodiments of the present disclosure provide a drill chuck. The drill chuck includes: a drill body; jaws, partially disposed in the drill body, external threads being provided on an outer wall of the jaws; a locking member, disposed on the outer side of the drill body, the locking member being provided with internal threads, the locking member and the jaws being in threaded fit to enable the jaws to be movably disposed in the drill body; a driving assembly, disposed on an outer side of the locking member, the driving assembly being configured to drive the locking member to rotate, the driving assembly being disposed between a housing and the locking member, the housing driving the locking member to rotate by the driving assembly to enable the jaws to move in the drill body; and a locking structure, located between the housing and the jaws.

Abstract: The present disclosure discloses a pixel circuit and a method for controlling the same, and a flat panel detector. The pixel circuit includes: a plurality of pixel units arranged in an M×N array, wherein each of the pixel units is configured to sense an optical signal and generate induced current based on the sensed optical signal, where M and N are integers greater than or equal to 1; and N storage circuits connected to N columns of pixel units respectively, wherein each of the storage circuits has an input signal terminal connected to a respective column of pixel units, a control signal terminal and an output signal terminal, and is configured to receive induced current from the respective column of pixel units at the input signal terminal, store a voltage based on the received induced current, and provide the stored voltage at the output signal terminal under control of a signal at the control signal terminal.

Abstract: A photodetector, includes a photosensitive layer, a thin film transistor, and a sensing electrode, the sensing electrode connected to one of source/drain electrodes of the thin film transistor to transmit a signal generated by the photosensitive layer to the thin film transistor; wherein the photodetector further i a hydrogen barrier layer which is disposed between the photosensitive layer and the thin film transistor and is configured to inhibit hydrogen of the photosensitive layer from entering the thin film transistor. A method of manufacturing a photodetector is further provided.

Abstract: Embodiments of the present disclosure provide an array substrate and a manufacturing method therefor, and a display panel. The array substrate includes: a substrate and a pixel defining layer provided on the substrate, the pixel defining layer including a plurality of opening areas, and the plurality of opening areas being provided with a plurality of quantum dot light-emitting devices in a one-to-one correspondence manner; each of the quantum dot light-emitting devices includes a quantum dot light-emitting layer, and the quantum dot light-emitting layer is made of a quantum dot material. At least one of the pixel defining layer and the quantum dot material is magnetic.

Abstract: A method for increasing point cloud sampling density, a point cloud processing system, and a readable storage medium. The method for increasing point cloud sampling density includes operations that performing a projection transformation on a three-dimensional first point cloud based on a given plane to obtain a first planar image, inserting a plurality of pixel points in the blank area based on a pixel point around a blank area in the first planar image to obtain a second planar image, and performing an inverse projection transformation on the second planar image to obtain a reconstructed three-dimensional second point cloud. This disclosure replaces the insertion point in the three-dimensional point cloud with the insertion of the pixel point in the planar image, which can reduce the difficulty of data inserting.

Abstract: A light-emitting diode (LED) substrate and a manufacturing method thereof, and a display device are provided. The LED substrate includes a receiving substrate, the receiving substrate is provided thereon with a pixel definition layer and a plurality of LED units, the pixel definition layer defines a plurality of sub-pixel regions, each of the plurality of sub-pixel regions is configured to receive at least one of the plurality of LED units, and a solder point and an auxiliary metal member are both provided in the sub-pixel region, the auxiliary metal member is provided at a periphery of the solder point, an interval is provided between the solder point and the auxiliary metal member in a plan view of the receiving substrate, and a melting point of the auxiliary metal member is higher than a melting point of the solder point.

Abstract: Some embodiments of the present disclosure provide a drill chuck. The drill chuck includes: a drill body; jaws, partially disposed in the drill body, external threads being provided on an outer wall of the jaws; a locking member, disposed on the outer side of the drill body, the locking member being provided with internal threads, the locking member and the jaws being in threaded fit to enable the jaws to be movably disposed in the drill body; a driving assembly, disposed on an outer side of the locking member, the driving assembly being configured to drive the locking member to rotate, the driving assembly being disposed between a housing and the locking member, the housing driving the locking member to rotate by the driving assembly to enable the jaws to move in the drill body; and a locking structure, located between the housing and the jaws.

Abstract: The present disclosure provides a clamping jaw assembly and a drill chuck, which solve technical problems of complex structure, small clamping range, poor clamping effect, and high cost of the existing clamping jaw assembly. The clamping jaw assembly includes a first clamping jaw and a second clamping jaw, both of which include a screwing section, an outer surface of each screwing section is arranged with a thread, a top end of each screwing section is arranged with a clamping section, the screwing section is fixedly connected with corresponding damping section. An inner side of the clamping section of the first clamping jaw includes a first clamping part, and an inner side of the clamping section of the second clamping jaw includes a second clamping part matched with the first clamping part. The present disclosure can be widely used in fields of electric tools, machine tool accessories and medical equipment, etc.

Abstract: The present disclosure discloses a dimming mirror and a manufacturing method thereof, and a dimming apparatus. The dimming mirror includes a dimming layer including a plurality of dimming units. Each of the dimming units includes a first driving structure and a second driving structure opposite to each other, and an elastic supporting structure disposed between the first driving structure and the second driving structure. The first and second driving structures and the elastic supporting structure enclose a dimming chamber. The first and second driving structures are configured to adjust a dimming angle of the dimming unit by adjusting a gap width of the dimming chamber, such that a response wavelength of the dimming mirror is adjusted. The present disclosure facilitates the improvement of the flexibility of the dimming mirror.

Abstract: A three-dimensional display device having an imaging space, wherein an up-conversion material is disposed inside the imaging space, a first light source that emits light toward the imaging space in a first direction, and a second light source that emits light toward the imaging space in a second direction. When the three-dimensional display device is operating, the light from the first light source and the light from the second light source intersect in the imaging space to form a convergence line or light convergence plane, such that the up-conversion material on the convergence line or in the convergence plane is excited to emit light.

Abstract: The disclosure provides a liquid crystal antenna including: a first substrate; a second substrate facing the first substrate; a third substrate facing the second substrate such that the second substrate is between the first substrate and the third substrate; a liquid crystal layer between the first substrate and the second substrate; a transmission line on a surface of the first substrate adjacent to the liquid crystal layer; a ground electrode on a surface of the second substrate adjacent to the liquid crystal layer; a feeder line and a radiation patch both on a surface of the third substrate, wherein the transmission line and the ground electrode form a signal transmission circuit, and the transmission line and the liquid crystal layer form a phase shifter. In addition, the disclosure also relates to a method for manufacturing the liquid crystal antenna and an electronic device including the liquid crystal antenna.

Abstract: The present disclosure discloses a pixel circuit and a method for controlling the same, and a flat panel detector. The pixel circuit includes: a plurality of pixel units arranged in an M×N array, wherein each of the pixel units is configured to sense an optical signal and generate induced current based on the sensed optical signal, where M and N are integers greater than or equal to 1; and N storage circuits connected to N columns of pixel units respectively, wherein each of the storage circuits has an input signal terminal connected to a respective column of pixel units, a control signal terminal and an output signal terminal, and is configured to receive induced current from the respective column of pixel units at the input signal terminal, store a voltage based on the received induced current, and provide the stored voltage at the output signal terminal under control of a signal at the control signal terminal.

Abstract: The present disclosure discloses a quantum-dot display substrate, a method for preparing the same, and a display panel. The quantum-dot display substrate includes a substrate and a plurality of light emitting sub-pixels disposed on the substrate, in which each of the light emitting sub-pixels includes a quantum-dot light emitting layer, and the quantum-dot light emitting layer includes a crosslinked network formed by crosslinking quantum dots having a crosslinkable ligand with a crosslinking agent.

Abstract: A quantum dot light-emitting diode substrate having a bonding layer and a method of preparing the same are provided. The quantum dot light-emitting diode substrate including a plurality of sub-pixel light-emitting regions, wherein each of the sub-pixel light-emitting regions includes a light-emitting layer including a bonding layer and a quantum dot bonded to the bonding layer. The quantum dot light-emitting diode substrate can be prepared with high resolution by a convenient process, and is suitable for mass production.

Abstract: Embodiments of the present application provide a method and an apparatus for acquiring a fingerprint, a chip and a terminal device, which may reduce interference caused by ambient light, temperature and a chip dark current and other factors. The method includes: acquiring a first fingerprint image and at least one second fingerprint image, where a screen luminance for acquiring the first fingerprint image is higher than a screen luminance for acquiring the at least one second fingerprint image; determining a third fingerprint image according to the first fingerprint image and the at least one second fingerprint image, where the third fingerprint image is an interference image having a same exposure time as the first fingerprint image; and performing interference cancellation on the first fingerprint image according to the third fingerprint image to obtain a fourth fingerprint image.

Abstract: A thin film transistor, a method for manufacturing the same, an array substrate, and a display device are provided. The thin film transistor includes a substrate; a gate electrode, a gate insulating layer, an active layer, a source electrode, and a drain electrode provided on the substrate; wherein the active layer includes a source region, a drain region, and a channel region between the source region and the drain region, the channel region having a bending pattern.