Abstract: A compound according to Formula (1), in which D is an electron donor containing a nitrogen atom and is bonded to a benzene ring through the nitrogen atom; A is an electron acceptor containing a boron atom and is bonded to a benzene ring through the boron atom; m and n are each an integer selected from 1, 2 or 3; and R11, R12, R13, R14 are each independently selected from the group consisting of a hydrogen atom, alkyl, alkoxy, cyano, trifluoromethyl, an electron acceptor A?, and a nitrogen-containing electron donor D. In the compound, biphenyl acts as a linking unit between the electron donor D and the electron acceptor A, such that units D and A are located at different positions of the molecule, realizing effective separation between HOMO and LUMO. In addition, the light absorption and vibration strength of the molecule are enhanced.

Abstract: An organic light-emitting display panel has a display region including a fingerprint recognition region and light-emitting devices for displaying image, the display panel includes a driving device layer, an anode layer, a pixel definition layer, an organic light-emitting layer, and a cathode layer sequentially stacked; and an optical fingerprint recognition sensor located in the fingerprint recognition region and located at a side of the driving device layer away from the anode layer; the pixel definition layer includes sub-pixel openings corresponding to the light-emitting devices, each light-emitting device includes an anode corresponding to one sub-pixel opening, the anode being located in the anode layer and overlapping with a corresponding sub-pixel opening, the organic light-emitting layer is located in each sub-pixel opening, and the cathode layer overlaps with each sub-pixel opening; in the fingerprint recognition region, at least part of the light-emitting devices each have an anode being a transpare

Abstract: The present disclosure describes a flexible display panel and display apparatus. The flexible display panel comprises: a flexible substrate; an array layer located on the flexible substrate; a display layer located on a side of the array layer facing away from the flexible substrate, the display layer comprising a plurality of light-emitting devices; a shielding film located on a side of the flexible substrate facing away from the array layer; the flexible display panel comprises a bendable area, the shielding film has a plurality of hollow portions at least at the bendable area. The present disclosure can shield the film to relieve the bending stress when the flexible display panel is bent, thereby avoiding the crease of the flexible display panel in the bending area, and achieving performance reliability of the flexible display panel.

Abstract: A display panel and a display device are provided. The display panel includes a base substrate; a plurality of gate lines extending in a row direction and a plurality of data lines extending in a column direction arranged on the base substrate, and the plurality of gate lines and the plurality of data lines intersect in an insulation manner to define a plurality of pixel circuit regions including a plurality of pixel circuits; a plurality of sub-pixel regions arranged on the base substrate, and each of the plurality of sub-pixel regions includes a light-emitting element, a corresponding one of the plurality of pixel circuits provides a driving signal to the light-emitting element, and the light-emitting element includes an anode, a light-emitting layer and a cathode which are sequentially stacked at a side of the base substrate; and a plurality of light-emitting control signal lines arranged on the base substrate.

Abstract: The present disclosure provides an organic light-emitting display panel and an organic light-emitting display device for improving the uniformity of the display effects of both sides. The organic light-emitting display panel includes an array substrate having a plurality of pixel units; a plurality of organic light-emitting diodes located in the pixel units of the array substrate. The plurality of organic light-emitting diodes includes a plurality of first organic light-emitting diodes and a plurality of second organic light-emitting diodes, wherein the first organic light-emitting diodes are organic bottom light-emitting diodes and the second organic light-emitting diodes are organic top light-emitting diodes. The area of the pixel unit where the first organic light-emitting diodes are located is larger than area of the pixel unit where the second organic light-emitting diodes are located. The organic light-emitting display panel according to the present disclosure is applied in a display device.

Abstract: Provided are a display panel and a display device. The display panel includes a display assembly, which includes a base substrate and a plurality of light-emitting units disposed on one side of the base substrate, where each of the plurality of light-emitting unit includes a reflective electrode; a fingerprint recognition assembly, which is disposed on one side of the reflective electrode facing away from a light emitting surface of the light-emitting unit, and includes at least one fingerprint recognition unit which is configured to perform fingerprint recognition; and a first reflecting layer, which is disposed on one side of the reflective electrode facing to the fingerprint recognition assembly and includes at least one first reflecting unit, where at least part of a vertical projection of the first reflecting unit on a film layer where the fingerprint recognition unit is located is in an area other than the fingerprint recognition unit.

Abstract: Provided are a display panel and a display device. The display panel includes a display region having a first steplike edge. The display region is provided with a plurality of sub-pixel groups. Each sub-pixel group includes a first sub-pixel unit, a second sub-pixel unit and a third sub-pixel unit. The first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit have different luminous colors. Along a connecting line of step apex angles of the first steplike edge, the display region is provided with a plurality of first sub-pixel groups and a plurality of second sub-pixel groups. The first sub-pixel unit in each first sub-pixel group is disposed at a step apex angle of the first steplike edge, and the second sub-pixel unit in each second sub-pixel group is disposed at the step apex angle of the first steplike edge.

Abstract: An organic light-emitting diode (OLED) display panel and a display device are provided. An array substrate in the OLED display panel is provided with a first retaining wall surrounding a display region of the array substrate, and a second retaining wall surrounding the first retaining wall. Multiple outer electrode lines are exposed in a gap region between the first retaining wall and the second retaining wall on the array substrate. At least one of the multiple outer electrode lines is provided with at least one outer blocking portion at an edge region on at least one side of the outer electrode line, and the outer blocking portion breaks an edge line on the side of the outer electrode line in an extending direction of the outer electrode line and in contact with the outer electrode line.

Abstract: The present disclosure provides an emission control circuit including a first processing module, a second processing module, a third processing module and an output module. The first processing module generates a first signal in response to a first control signal, a second control signal and a second signal. The second processing module includes a first transistor having a control electrode electrically connected to the first node, a first electrode electrically connected to the second node and a second electrode electrically connected to the first control signal terminal, and a second transistor having a control electrode electrically connected to the first control signal terminal, a first electrode electrically connected to the second node and a second electrode electrically connected to the first control signal terminal. The third processing module generates a third signal and a fourth signal in response to the second control signal, the first signal and the second signal.

Abstract: The present disclosure provides a display panel, a display device, and a method for driving a display device. The display panel has a display region, a partial region of which is reused as a photographing photosensitive region. The display panel includes: a first substrate; a second substrate disposed opposite to the first substrate; a plurality of pixel units disposed in the display region, and a plurality of photosensitive elements disposed in the photographing photosensitive region. The first substrate is located on a side of the second substrate facing a light-emitting surface, the plurality of pixel units is formed on the second substrate, each of the plurality of pixel units includes a pixel circuit and a light-emitting element, and a planarization layer is arranged between the pixel circuit and the light-emitting element, and the plurality of photosensitive elements is located on a side of the planarization layer facing the first substrate.

Abstract: Provided are a display panel and a display device. The display panel includes multiple light-emitting devices. Each of the multiple light-emitting devices includes a red light-emitting device, a green light-emitting device and a blue light-emitting device. The red light-emitting device includes a red light-emitting layer, a peak wavelength of a red spectrum emitted by the red light-emitting device is ?11, and a peak wavelength of an intrinsic emission spectrum of a red light-emitting material in the red light-emitting layer is ?12. The green light-emitting device includes a green light-emitting layer, a peak wavelength of a green spectrum emitted by the green light-emitting device is ?21, and a peak wavelength of an intrinsic emission spectrum of a green light-emitting material in the green light-emitting layer is ?22. ?1=?11??12, ?2=?21??22.

Abstract: Provided is a display panel and display device. The display panel includes a first type sub-pixel and a second type sub-pixel. The first type sub-pixel includes a first voltage-regulating module, which is connected between a pixel drive circuit and a light-emitting component in the first type sub-pixel for increasing a voltage of two ends of the light-emitting component; and/or, the second type sub-pixel includes a second voltage-regulating module, which is connected between a pixel drive circuit and a light-emitting component in the second type sub-pixel for reducing a voltage between a first end and a second end of the light-emitting component.

Abstract: The present application discloses a display panel and a display device. The display panel comprises a plurality of data signal lines; a plurality of scan signal lines intersecting with the plurality of data signal lines, to define a plurality of sub-pixels in an array, and each of the sub-pixels comprising a pixel driving circuit, and an external compensation circuit, comprising a power supply unit, a sampling unit and a data signal generation unit, being connected to the data signal lines, and transmitting a compensated data signal via the data signal lines to the pixel driving circuits. In the present implementation, voltage compensation is performed by the external compensation circuit on the driving transistor and the organic light emitting diode in the pixel driving circuit, to improve the driving capability of the pixel driving circuit and increases the display precision of the display panel.

Abstract: The present disclosure provides a shift register. The shift register includes: a first node control module configured to control level at a first node based on a first clock signal and a second clock signal; a second node control module configured to control level at a second node based on level at the first node, the first clock signal, the second clock signal, a first low level signal and a high level signal; an output control module configured to control an output terminal to output high or low level based on level at the first node, level at the second node, the high level signal and a second low level signal; and a carry control module configured to control a carry terminal to output high or low level based on level at the second node, level at the output terminal, the high level signal and the second low level signal.

Abstract: An OLED display panel is provided. The OLED display panel comprises a first electrode; an opposite second electrode; and a plurality of stacking layers sandwiched between the first electrode and the second electrode. The plurality of stacking layers at least comprises a first auxiliary light-emitting layer and a light-emitting layer sequentially disposed on the first electrode. The first auxiliary light-emitting layer comprises a host material and a dopant material, and the dopant material comprises a compound of the following chemical formula (I): where n is an integer equal to or larger than 1, X1, X2 and Xn+2 each independently has a chemical structure of R? is selected from any one of a substituted aryl group and a substituted heteroaryl group, and a substituent in the substituted aryl group and a substituent in the substituted heteroaryl group each includes at least one electron acceptor group.

Abstract: The present disclosure provides a shift register. The shift register includes: a first node control module for controlling level at the first node; a second node control module for controlling level at a second node; and an output control module for controlling the output terminal to output high or low level. The first node control module includes an input unit configured to write the input signal into the third node and a protection unit configured to control a level at a fourth node based on a level at the third node and control writing of the level at the fourth node into the first node based on the second clock signal. The technical solution of the present disclosure can prevent the transistor for providing the third node with inputting signal from being broken down.

Abstract: The present disclosure relates to the field of technology of an OLED material and a device having the same, and particularly to a compound, a preparation method thereof and an organic light emitting display device, wherein the compound has a structure expressed by formula (I).

Abstract: Provided is a display panel and display device. The display panel includes a first non-display area, a first display area, a second display area and a third display area. The first display area at least partially surrounds the first non-display area, the first display area and the second display area are arranged in a first direction, the third display area is arranged with the first and second display areas in a second direction. The first display area includes first sub-pixels arranged in array, the second display area includes second sub-pixels arranged in array, and the third display area includes third sub-pixels arranged in array. Each first sub-pixel, each second sub-pixel and each third sub-pixel have a same size in the first direction; each first sub-pixel and each second sub-pixel have a same size in the second direction and each second sub-pixel has the size greater than each third sub-pixel in the second direction.

Abstract: The present disclosure provides an organic light-emitting display panel and a display device. The organic light-emitting display panel has display area including fingerprint recognition region and non-fingerprint recognition region; and non-display area surrounding the display area. The organic light-emitting display panel includes: a base substrate; organic light-emitting elements arranged in the display area, located on a side of the base substrate and having at least three different colors; and a fingerprint recognition unit arranged in the fingerprint recognition region. The organic light-emitting elements include first organic light-emitting element disposed in the fingerprint recognition region and second organic light-emitting element disposed in the non-fingerprint recognition region, which emit light of a same color.

Abstract: The present disclosure provides a display panel, a method for driving the display panel, and a display device. The display panel includes a control unit including first and second processing circuits. A pixel circuit located within the fingerprint recognition region is connected to the first and second processing circuits of the corresponding control unit. In the fingerprint recognition mode, a pixel circuit located within the non-fingerprint recognition region receives a first light emission control signal, so that the light-emitting element does not emit light in first period and second sub-period and emits light in first sub-period. The second processing circuit provides a second light emission control signal, and a pixel circuit located within fingerprint recognition region responds to the second light emission control signal, so that the light-emitting element does not emit light in first period and emits light in first sub-period and second sub-period.