Abstract: Disclosed is a display device including a cover plate, a display panel, a first circuit board, and a rear housing, wherein the cover plate is connected to the rear housing to form an accommodation space, the display panel is assembled with the first circuit board and is disposed in the accommodation space, and the first circuit board includes a first extension portion and a second extension portion, wherein the first extension portion and the second extension portion are connected, the first extension portion extends in a first direction and is attached to the display panel, and the second extension portion extends in a second direction and is attached to the display panel, the first direction being intersected with the second direction.

Abstract: A distance measurement method is provided. The distance measurement method includes obtaining an image of a target device, the image of the target device including a target object of a first color and a background object of a second color, the first color being different from the second color; processing the image of the target device to obtain a processed image, the processed image including a processed target object of a third color and a processed background object of a fourth color; detecting a contour of the processed target object of the third color; calculating an area encircled by the contour; and calculating a distance between a camera and the target device upon determination of the area encircled by the contour.

Abstract: There is provided a display substrate including a base and a pixel circuit layer on the base, the pixel circuit layer includes pixel driving circuits arranged in an array along a first direction and a second direction. The base has recesses, each of which extends in the first direction and has a bottom surface and a side surface, a surface of the base includes the bottom surface and the side surface of each recesses, and a top surface between adjacent recesses, the bottom surface of each recess is substantially parallel to the top surface between adjacent recesses, the side surface of each recesses is at a first angle to the bottom surface of the recess and the top surface between adjacent recesses, and a portion of each pixel driving circuits is formed on the side surface of one recess. A method for preparing a display substrate is further provided.

Abstract: Disclosed are a brightness control apparatus and method, and a display apparatus. The brightness control apparatus includes an optical detection circuit and an integrated circuit chip connected with the optical detection circuit. The optical detection circuit includes at least one transistor, configured to detect a light intensity of light to be detected corresponding to an environment where a display panel is located, and generate an electrical signal corresponding to the light intensity of the light to be detected.

Abstract: A power supply circuit, a driving method thereof, a printed circuit board, a display module and a display apparatus are disclosed, which relates to a technical field of displaying. The power supply circuit includes a first power management chip and a second power management chip configured to be respectively connected with a display panel and provide different driving signals to the display panel, and the driving signals are configured for driving the display panel to display.

Abstract: An optical communication transmitting device, an optical communication receiving device, a method, and a system are provided. The optical communication transmitting device includes: a light-emitting display screen, a liquid crystal panel, and a control circuit; the liquid crystal panel is located at a light emission side of the light-emitting display screen; the control circuit is configured to generate, according to a presetting encoding rule, a driving voltage that controls liquid crystal molecules of the liquid crystal panel to be twisted, and the presetting encoding rule is related to a target deflection angle, wherein a polarized light beam emitted from the light-emitting display screen passes through the liquid crystal panel driven by the driving voltage, and then is deflected according to the target deflection angle, and then is transmitted to an optical communication receiving device.

Abstract: Provided is a wearable display device. The wearable display device includes a display panel, comprising a display region and a peripheral region surrounding the display region; a plurality of light-emitting elements, configured to emit light to be irradiated to eyes of a user; a lens assembly, disposed on a light-exiting side of the display panel, the lens assembly comprising a lens mount and a lens within the lens mount, a light transmittance of the lens mount being greater than a threshold; and a plurality of photoelectric sensor assemblies in the peripheral region.

Abstract: Organic light-emitting devices, display panels and display apparatuses are provided. An organic light-emitting device includes: a first electrode layer; a first light-emitting layer provided on the first electrode layer and including a first host material and a first guest material; a second light-emitting layer provided on the first light-emitting layer and including a second host material and a second guest material; and a second electrode layer provided on the second light-emitting layer. The first guest material has a general structural formula as indicated in Formula I. X is selected from carbon, nitrogen, oxygen, sulfur, or boron; Y is selected from nitrogen or boron, and Y is different from X; and R1 and R2 are selected from hydrogen, methyl, isopropyl, tert-butyl, substituted or unsubstituted aryl, substituted or unsubstituted alkyl aryl, or substituted or unsubstituted nitrogen-containing aryl, respectively.

Abstract: A phased array antenna includes a phase shifter unit, a waveguide unit and a connection unit, the phase shifter unit has two substrate surfaces and includes at least one phase shifter having two feeding regions; a side where at least one of the substrate surfaces is located is provided with the waveguide unit having a waveguide cavity corresponding to at least one of the feeding regions of each phase shifter; the connection unit corresponds to each waveguide unit and includes an insulation body, the insulation body is fixedly connected with the substrate surface and the waveguide unit on the same side as the insulation body; the insulation body has a first hollow-out portion, the waveguide unit contacts the substrate surface through the first hollow-out portion, a first port of the waveguide cavity is located on a contact surface of the waveguide unit in the first hollow-out portion.

Abstract: Provided is a fingerprint sensor, including: a substrate; a plurality of photosensitive devices disposed on the substrate; a light-emitting module disposed on a side, distal to the substrate, of the plurality of photosensitive devices; and a protective cover disposed on a side, distal to the substrate, of the light-emitting module, wherein the protective cover is provided with a plurality of conductive structures electrically connected to the light-emitting module, the plurality of conductive structures being in one-to-one correspondence with the plurality of photosensitive devices, and an orthographic projection of each conductive structure onto the substrate at least partially being overlapped with an orthographic projection of the photosensitive device corresponding to the conductive structure onto the substrate.

Abstract: A pixel circuit comprises a drive sub-circuit (101), writing sub-circuit (102), reset sub-circuit (103), voltage stabilizing sub-circuit (104), storage sub-circuit (105) and light emitting element. The drive sub-circuit is configured to provide a driving current to the light emitting element under control of signals of a first node (N1) and a second node (N2); the writing sub-circuit is configured to write a signal from a data signal terminal (Data) to N2 under control of signal of a scan signal terminal (Gate); the storage sub-circuit is configured to store a voltage of N1; the voltage stabilizing sub-circuit is configured to stabilize a voltage of an anode terminal of light emitting element through signal of a voltage stabilizing signal terminal (V1); the reset sub-circuit is configured to reset anode terminal of light emitting element under control of signal of Gate and reset N1 under control of signal of a reset control signal terminal (Reset).

Abstract: A display panel and a display device are provided. The display panel includes: an array substrate, a cell-assembling substrate, and a liquid crystal layer located therebetween. The array substrate includes a first base, and the first base comprises sub-pixel regions (A), a first trace region (B) located between two adjacent rows of sub-pixel regions (A), and a second trace region (C) located between two adjacent columns of sub-pixel regions (A). Gate lines (1) are located in the first trace region (B). Data lines (2) are located in the second trace region (C), each data line (2) has a support portion (21), and the support portion (21) is located in an intersection region of the first trace region (B) and the second trace region (C). Sub-pixel units are located in the sub-pixel region (A), and the sub-pixel units includes a common electrode (4).

Abstract: A method for classifying an image of a displaying base plate includes: acquiring an image to be checked; from a first predetermined-type set, determining a type of the image to be checked. The first predetermined-type set includes: a first image type, a second image type and a third image type. An image of the first image type is a no-defect image, an image of the second image type is a blurred image, and an image of the third image type is a defect image. When the type of the image to be checked is the third image type, by using a first convolutional neural network, determining a defect data of the image to be checked, wherein the defect image refers to an image of a displaying base plate having a defect, and the defect data contains a defect type of the displaying base plate in the image to be checked.

Abstract: Disclosed are a display substrate and a display device. The display substrate includes a pixel circuit and a scan drive circuit, wherein the pixel circuit includes a write transistor and a scan signal line, the scan signal line is electrically connected with a control electrode of the write transistor, and the scan drive circuit includes a first scan clock signal line and a second scan clock signal line. A signal of the first scan clock signal line is a first clock signal, a signal of the second scan clock signal line is a second clock signal, and both of the first clock signal and the second clock signal are periodic clock signals. A duration of the first clock signal being a low-level signal in one period is different from a duration of the second clock signal being a low-level signal in one period.

Abstract: A tactile feedback method includes: determining a touch state; selecting a fitting waveform corresponding to the touch state according to the touch state; and providing an electrical signal to the tactile feedback apparatus according to the fitting waveform, so as to enable the tactile feedback apparatus to vibrate. A method for obtaining the fitting waveform includes: obtaining a touch simulation mechanical curve, and fitting the touch simulation mechanical curve to obtain the fitting waveform of the electrical signal to be provided to the tactile feedback apparatus.

Abstract: Provided is a liquid crystal display panel. The liquid crystal display panel includes: a first substrate and a second substrate that are opposite to each other, and a liquid crystal layer between the first substrate and the second substrate. The liquid crystal display panel includes a plurality of sub-pixel regions. Each of the plurality of sub-pixel regions includes 4N sub-pixel sub-regions arranged in a single column, and the 4N sub-pixel sub-regions are organized into one group, or a plurality of groups that are adjacent to each other. A same group of sub-pixel sub-regions includes two first sub-regions and two second sub-regions. N is an integer greater than or equal to 1.

Abstract: A display panel includes a driving circuit and a signal line. The signal line includes at least two main signal sub-lines each including a first end and a second end, the first ends of the at least two main signal sub-lines are electrically coupled to each other, and the second ends thereof are electrically coupled to each other. N main signal sub-lines in the at least two main signal sub-lines are directly electrically coupled to the driving circuit. Each of the N main signal sub-lines is a direct-coupled main signal sub-line, and a main signal sub-line in the at least two main signal sub-lines other than the direct-coupled main signal sub-lines is an indirect-coupled main signal sub-line which is not directly electrically coupled to the driving circuit but electrically coupled to the driving circuit via the direct-coupled main signal sub-line, where N is a positive integer.

Abstract: A control method of a display panel. The method includes the following steps: determining a target refresh frequency of the display panel; determining a data chopping rule adapted to the target refresh frequency according to the first mapping relationship; providing a data signal to the display panel according to a data chopping rule.

Abstract: A display apparatus and an electronic device are provided, and belong to the field of display technology. The display apparatus includes a display module and a plurality of antenna units integrated on the display module. The display module includes a first substrate and a second substrate opposite to each other and a liquid crystal layer between the first substrate and the second substrate; each antenna unit includes a first radiation portion and a first reference electrode opposite to each other; the first radiation portion is on a light outgoing side of the display module; and the first substrate includes a first base substrate and a driving layer on a side of the first base substrate close to the liquid crystal layer; and the driving layer is also used as the first reference electrode of each antenna unit.

Abstract: The present disclosure provides an array substrate, a method for manufacturing the array substrate, and a display apparatus. The array substrate includes: a base substrate, a thin film transistor disposed on the base substrate; a first passivation layer, an organic film layer and a pixel electrode disposed on the thin film transistor; a connection structure for connecting the source electrode of the thin film transistor and the pixel electrode, wherein the connection structure is disposed in a via hole structure exposing the pixel electrode and the source electrode; or, the connection structure is disposed between the pixel electrode and the source electrode.