Abstract: Provided are an organic compound and use thereof, where the organic compound has excellent thermal stability and thin-film stability, is stable when the organic electroluminescent device works, and when applied to the organic electroluminescent device as a charge generation layer material, enables the device to have a high current efficiency, a low drive voltage and a long lifetime.

Abstract: The present application discloses a display panel, a display apparatus and a method for driving the display panel. The display panel includes a pixel circuit and a light-emitting element; the pixel circuit includes a data writing module and a driving module including a driving transistor; in a duration of an image frame of the display panel, an operation process of the pixel circuit includes a pre-light emission stage and a light emission stage; in a duration of at least one image frame, the pre-light emission stage of the pixel circuit includes a data writing stage and n1 bias stages, n1?1, and n1 is an integer; the data writing module is configured to provide a data signal to a gate of the driving transistor in the data writing stage and to provide a bias signal to the driving transistor in the bias stages.

Abstract: A display panel includes a pixel circuit including a drive module, a reset module, and a compensation module, a first terminal of the drive module is coupled to the light-emitting element to provide a drive current for the light-emitting element, and the drive module includes a drive transistor; the reset module is connected between a reset signal terminal and a control terminal of the drive module to provide a reset signal for the drive module; and the compensation module is connected between the control terminal of the drive module and the first terminal of the drive module to compensate a threshold voltage of the drive transistor; in the reset stage, the reset module is turned on; in the compensation stage, the compensation module is turned on; and a partial time period of the reset stage coincides with a partial time period of the compensation stage.

Abstract: Provided are an organic compound, an electroluminescent material and an application thereof. The organic compound has a structure represented by Formula I. With the design of the spiro parent structure and the introduction of specific substituents, the organic compound can prevent materials from stacking and reduce the crystallinity of the molecule. The design of the spiro structure and substituents make the organic material have a high triplet state energy level Ti, and the nitrogen heterocycle and its linking groups make the organic compound have characteristics of good electron and hole transport performances. The organic compound has suitable HOMO and LUMO energy levels, facilitating the coordination of adjacent layers in terms of energy level. The organic compound also has advantages of high glass-transition temperature and good molecular thermal stability. Therefore, the organic compound can effectively improve the light emitting efficiency and lifetime of the device.

Abstract: A display panel, a method for driving a display panel, and a display device are provided. A first scanning driving unit is electrically connected to first scanning control terminals of first and second pixel driving circuits. A working cycle of the pixel driving circuit includes a data writing phase. The data writing phase of the first pixel driving circuit is prior to the data writing phase of the second pixel driving circuit in a display duration of one frame of an image. When the first pixel driving circuit and the second pixel driving circuit receive a same data voltage, a potential VN11 of the first node in the first pixel driving circuit after the data writing phase of the first pixel driving circuit is greater than a potential VN12 of the first node in the second pixel driving circuit after the data writing phase of the second pixel driving circuit.

Abstract: Embodiments of the application provide a display panel and display device. The display panel has a display area and a non-display area and includes a touch-control component, including multiple first electrode blocks distributed in sequence along a first direction and multiple second electrode blocks distributed in sequence along a second direction, the first electrode blocks and second electrode blocks being positioned in the display area; and a dummy component including dummy electrode blocks positioned in the display area and dummy traces positioned in the non-display area, each dummy electrode block being positioned between two adjacent first electrode blocks and a second electrode block adjacent to the two adjacent first electrode blocks, wherein there is a first distance S between two adjacent dummy electrode blocks, and a distance from an end of at least one dummy trace to a dummy electrode block is greater than or equal to S/3.

Abstract: A display panel and a display device are provided. In an embodiment, the display panel has a display region and a non-display region and includes shift registers cascaded and arranged along a first direction. In an embodiment, the shift registers are located in the non-display region. In an embodiment, one of the shift registers includes a switch module and an output module. In an embodiment, the output module is coupled to an output terminal of the shift register and includes two output transistors, and the output transistors are located at a side of the switch module away from the display region. In this way, the probability of occurrence of abnormal phenomena, such as splash screen display, is reduced.

Abstract: Provided are a display panel, a driving method, and a display device. The display panel includes: a gate driving circuit, a pixel driving circuit, and a light-emitting component. The pixel driving circuit includes a driving transistor, a data writing module, a threshold compensation module, and a light-emitting control module. A transistor in the threshold compensation module is a P-type transistor and a transistor in the light-emitting control module is an N-type transistor, or the transistor in the threshold compensation module is an N-type transistor and the transistor in the light-emitting control module is P-type transistor. A control terminal of the threshold compensation module and a control terminal of the light-emitting control module are electrically connected to a same gate driving circuit.

Abstract: The present disclosure relates to a compound, a material for an organic electroluminescent device and an application thereof. The compound provided by the present disclosure has a relatively high refractive index and can effectively improve the light extraction efficiency and the external quantum efficiency of an organic electroluminescent device when used in the organic electroluminescent device especially as a material for the capping layer. The compound has a relatively high refractive index in the region of visible light (400-750 nm), which is conducive to improving the light-emitting efficiency. The compound has a relatively large extinction coefficient in the ultraviolet region (less than 400 nm), which is conducive to absorbing harmful light and protecting eyesight and has a relatively small extinction coefficient in the region of blue light (400-450 nm) and hardly absorbs blue light, which is conducive to improve the light-emitting efficiency.

Abstract: A display panel and a display device, including a substrate, a circuit layer located at a side of the substrate, and a top light-shielding layer configured to receive a voltage signal. The circuit layer includes a light-emitting shift circuit, including a first output module and a control module. The first output module is electrically connected to a first node, a first fixed potential signal line, and a light-emitting control signal line and is configured to, in response to a voltage of the first node, transmit a light-emitting enable voltage provided by the first fixed-potential signal line to the light-emitting control signal line. The control module is connected to the first node and includes a control transistor. The top light-shielding layer is located at a side of the control transistor. In a direction perpendicular to the substrate, the top light-shielding layer overlaps with a channel of the control transistor.

Abstract: A display panel, a method for driving the same, and a display apparatus are provided. The display panel includes a plurality of light-emitting elements. Each one of the light-emitting element is electrically connected to M pixel circuits, where M is a positive integer greater than or equal to 2. The M pixel circuits are configured to drive the light-emitting element to emit light respectively during different display phases of the display panel.

Abstract: Provided are a display device and a preparation method thereof. The display device includes a first substrate, where the first substrate includes a display portion and a bending portion located on at least one side of the display portion; and a second substrate, where the second substrate and the first substrate are disposed opposite to each other, the second substrate includes a first region portion corresponding to the bending portion, and the bending portion is bent towards one side facing away from the second substrate. A protective layer is provided between the bending portion of the first substrate and the first region portion of the second substrate and the bending portion of the first substrate is bent towards one side of the second substrate.

Abstract: A display panel and a display device are provided in the disclosure. A display region of the display panel includes light-emitting elements and pixel circuits. Power signal lines are data signal lines in the display region are electrically connected to the pixel circuits. Part of power signal lines include a first power wiring section including a first power boundary. Part of the data signal lines include a first data wiring section including a first data boundary and a second data wiring section including a second data boundary. In a thickness direction, a pixel electrode overlaps the first power boundary, overlaps the first data boundary, and does not overlap the second data boundary. The minimum distance between the first power boundary and the first data boundary overlapping the same pixel electrode is smaller than the minimum distance between a first virtual boundary and the first power boundary.

Abstract: Provided is a compound including a moiety A and one or two moieties B fused with the moiety A at fusing sites, in which X is N, O, S or C; and when X is O or S, Ar2-L1- is absent; Y1-Y4 are each independently C or N; L1 and L2 are each independently a single bond, a substituted or unsubstituted C6-C30 arylene, a substituted or unsubstituted C10-C40 fused arylene, or a substituted or unsubstituted C4-C30 heteroarylene; Ar1 and Ar2 are each independently a substituted or unsubstituted C6-C30 aryl, a substituted or unsubstituted C10-C40 fused aryl, a substituted or unsubstituted C4-C30 heteroaryl, or a substituted or unsubstituted C6-C40 fused heteroaryl, and * represents one of the fusing sites, N or CRa, where Ra is a substituted or unsubstituted C1-C20 alkyl, a substituted or unsubstituted C6-C30 aryl, or a substituted or unsubstituted C3-C30 heteroaryl.

Abstract: The disclosure discloses a mask device and an evaporation device, so as to manufacture a special-shaped display panel, improve the manufacturing efficiency of the special-shaped display panel and lower the cost. The mask device provided by the embodiment of the present disclosure comprises a framework and a first strip plate, where the first strip plate is fixed on the framework and extends along the first direction, the first strip plate includes a first area and a second area, and the width of the first area is greater than the width of the second area in the direction parallel to the surface of the first strip plate and vertical to the first direction.

Abstract: A method for driving display of a display panel, a display driver chip and a display device are provided. The method includes: acquiring a to-be-displayed grayscale of a sub-pixel in a frame of a to-be-displayed image; determining whether the to-be-displayed grayscale meets a grayscale optimization condition of a gamma curve; on determining that the to-be-displayed grayscale meets the grayscale optimization condition of the gamma curve, dividing a refresh period of the to-be-displayed image into sub-frames; and in the refresh period of the to-be-displayed image, controlling the sub-pixel to display first grayscales based on first data signals; and the first grayscales are not equal to the to-be-displayed grayscale, the first grayscales and the first data signals corresponding to the first grayscales satisfy the gamma curve.

Abstract: Provided are a drive module, a voltage generation method thereof, and a display device. The drive module includes a mainboard, a power chip, and a driver chip. The driver chip includes a main control unit and a base voltage generation unit. The main control unit is configured to determine the target value of a base voltage in the current drive display mode according to the current drive display mode, determine the optimal voltage multiplying relationship of the base voltage in the current drive display mode according to an analog reference voltage signal and the target value of the base voltage, calculate the actual output value of the base voltage according to the analog reference voltage signal and the optimal voltage multiplying relationship, and generate first instruction information including the actual output value. The base voltage generation unit generates the corresponding base voltage according to the first instruction information.

Abstract: Provided are a display panel, a method for driving a display panel, and a display device. The display panel includes first pixels. The first pixel includes first and second light-emitting elements, and first and second pixel circuits respectively electrically connected to first electrodes of the first and second light-emitting elements. First electrodes of the first and second light-emitting element are independent from each other. Second electrodes of the first and second light-emitting elements are electrically connected to each other. Light-emitting material layers of the first and second light-emitting elements are formed into one piece. When the display panel displays at least one frame of an image, data voltages received by the first pixel circuit and the second pixel circuit in a same first pixel are different from each other. Thus, an influence of hysteresis effect on brightness of the first pixel is reduced to improve the display effect.

Abstract: Provided are a display panel, a driving method thereof and a display apparatus. The display panel includes bias signal lines and pixel circuits. A pixel circuit includes a drive module and a bias module. The bias module is connected between a first terminal of the drive module and a bias signal line. A display region of the display panel includes a first display region and a second display region. The bias signal lines include a first bias signal line and a second bias signal line. Bias modules in the first display region are connected to the first bias signal line. Bias modules in the second display region are connected to the second bias signal line. In at least part of turning-on stages of bias modules, a voltage transmitted by the first bias signal line is different from a voltage transmitted by the second bias signal line.

Abstract: Display panel and display device are provided. The display panel includes a display area and a non-display area. The display panel includes a plurality of first subpixels on the substrate. A first subpixel of the plurality of first subpixels includes a first pixel circuit and a light-emitting element electrically connected to the first pixel circuit. The first pixel circuit at least includes a first type of double-gate transistor. A first gate of the first type of double-gate transistor is connected to a first control line. A second gate of the first type of double-gate transistor is connected to a second control line. The display panel further includes a second detection line having a same width as the second control line.