Abstract: Provided are a nitrogen-heterocyclic compound, a display panel and a display apparatus. In an embodiment, the compound has a structure of Chemical Formula 1, in which X1 and X2 are each C or N, and at least one of X1 and X2 is N; X3 to X7 are N or —CRa, and one, two, three or four of X3 to X7 are N, where Ra is hydrogen, deuterium, a substituted or unsubstituted C1-C20 alkyl, C1-C20 alkoxy, C1-C20 thioalkyl, C6-C30 aryl, or C3-C30 heteroaryl; and Ra is independently present or forms an aliphatic ring, an aromatic ring, or a heteroaromatic ring with adjacent carbon atoms; Ar1 and Ar2 are each C6-C30 aryl or C3-C30 heteroaryl; and L1 and L2 are each a single bond, C6-C30 arylene, or C3-C30 heteroarylene. The compound is suitable as a CPL material to improve external quantum efficiency (EQE) of an organic light-emitting device and light-emitting efficiency.

Abstract: A display panel has a display region and a frame region outside the display region. The display region includes a plurality of pixel circuits. The display panel includes a base substrate, a buffer layer, a semiconductor layer, a power signal layer, and an auxiliary circuit layer. The buffer layer is on a side of the base substrate. The buffer layer includes an a-Si layer. The semiconductor layer is on a side of the buffer layer away from the base substrate. The power signal layer is on a side of the semiconductor layer away from the base substrate. The power signal layer includes a plurality of first power voltage lines in the display region, and one first power voltage line of the plurality of first power voltage lines are electrically connected to a corresponding pixel circuit.

Abstract: A display panel and a display device are provided. The display panel includes a plurality of sub-pixels. Each sub-pixel includes a pixel circuit and a light-emitting element. The pixel circuit includes a driving module, a compensation module, and a voltage regulation module. The compensation module includes a first double-gate transistor, and the first double-gate transistor includes a middle node. First and second electrodes of the first double-gate transistor are electrically connected to a control terminal and a second terminal of the driving module, respectively. A gate of the first double-gate transistor is connected to a first scan line providing a first scan signal. First and second terminals of the voltage regulation module are electrically connected to the middle node and a second scan line providing a second scan signal, respectively. A phase of the second scan signal is opposite to a phase of the first scan signal.

Abstract: Display panel and driving method thereof, and display device are provided. The display panel includes sub-pixels. Each sub-pixel includes a pixel circuit and a light-emitting element. The pixel circuit includes a driving transistor, a data input module, a threshold compensation module, and a bias adjustment module. First electrode of the driving transistor is connected to the data input module and the bias adjusting module. First terminal of the data input module is connected to a data signal, a second terminal of the data input module is connected to the first electrode of the driving transistor. First terminal of the bias adjustment module is connected to a bias adjustment signal, a second terminal of the bias adjustment module is connected to the first electrode of the driving transistor. The threshold compensation module is connected between a gate of the driving transistor and a second electrode of the driving transistor.

Abstract: An organic compound has a structure as shown in Formula (I). The compound has a phosphorus-oxygen five-membered ring combined with a five-membered ring as an electron acceptor unit. The compound has a high luminous efficiency and a lower material cost than phosphorescent metal complexes. The compound can be built into a stack structure of organic optoelectronic device, such as OLED. The resultant organic optoelectronic device includes an anode, a cathode, and at least one organic thin film located between the anode and the cathode, the organic thin film contains the compound as shown in Formula (I).

Abstract: Provided are a method for transmitting data, an electronic device, and a non-transitory computer-readable medium. The method includes determining whether a serial number of a data line corresponding to the current channel datum is a staring serial number of a first predetermined serial number range, when yes, mapping a staring serial number or an ending serial number of a first mapping range as the serial number of the data line corresponding to the current channel datum, and resetting a counting value; and determining whether the serial number of the data line corresponding to the current channel datum is not the starting serial number of the first predetermined serial number range, and when yes, increasing a current counting value by 1 within a first counting range, determining a current serial number step, and mapping a sum of the current serial number step and another serial number as the serial number.

Abstract: A method and a device for driving a display panel, and a display device are provided. The method including dividing a frame into N sub-frames, the N sub-frames corresponding to N sets of first gamma curves respectively, and the N sub-frames including at least two consecutive first sub-frames; obtaining a display grayscale of a sub-pixel in each first sub-frame based on an original grayscale of a sub-pixel in a frame image to be displayed, a set of second gamma curves, and one set of first gamma curves corresponding to the first sub-frame; and driving the display panel to display sub-frame images sequentially during the N sub-frames. A display voltage of the sub-pixel when the display panel displays one sub-frame image during one first sub-frames is obtained based on the set of second gamma curves and the display grayscale of the sub-pixel in the first sub-frame.

Abstract: A display panel includes a first display region, a second display region, a third display region, a plurality of first pixel circuits, a plurality of second pixel circuits, a plurality of third pixel circuits, a plurality of first data lines, and a plurality of second data lines. The second display region at least partially surrounds the first display region, the third display region at least partially surrounds the second display region and the first display region, and a light transmittance of the first display region is greater than a light transmittance of the third display region. The plurality of first pixel circuits and the plurality of second pixel circuits are in the second display region, and the plurality of third pixel circuits is in the third display region. The plurality of first data lines are connected to the plurality of first pixel circuits and the plurality of third pixel circuits.

Abstract: The present disclosure provides a display panel and a display device. The display panel includes pixel circuits arranged in a matrix, and a blocking unit. Each pixel circuit includes: a driving transistor; a first switch transistor; a second switch transistor; and a third switch transistor. The blocking unit is configured to receive a fixed potential signal, and at least a partial area of the blocking unit is located between a first semiconductor connection portion and a second semiconductor connection portion, the first semiconductor connection portion is connected between a second electrode of the first switch transistor and a gate electrode of the driving transistor, and the second semiconductor connection portion is electrically connected between a first electrode of the second switch transistor and a data line.

Abstract: A display panel and a display device are provided. The display panel includes a display area and at least two non-display areas arranged adjacently along a first direction. The display area at least partially surrounds the non-display areas. Each non-display area includes at least one light-transmitting area and a wiring area, and the wiring area at least partially surrounds the at least one light-transmitting area. The display area includes pixel circuits and driving signal lines electrically connected with the pixel circuits. A driving signal line includes a first segment in the display area, a first connection line located in the wiring area, and a second segment located between the at least two non-display areas that are arranged adjacently. The first segment is connected to the second segment through the first connection line and the first segment is at least located at a side of the at least two non-display areas that are arranged adjacently.

Abstract: Display panel and Display apparatus are provided.

Abstract: Provided are a display panel and a display device. The display panel includes a first display region and a second display region. The display panel further includes a pixel circuit, and the pixel circuit is configured to drive a light-emitting element to emit light. The distribution density of the pixel circuit in the first display region is less than the distribution density of the pixel circuit in the second display region. The first display region includes a compensation structure, and the compensation structure includes at least one layer of compensation film. The first display region further includes multiple first light-emitting elements, and the multiple first light-emitting elements each includes an anode. The anode at least partially overlaps the compensation structure in the first direction, and the first direction is perpendicular to a plane in which a substrate is located.

Abstract: Provided are a compensation method for a display panel and a display device. The compensation method for a display panel includes: obtaining a first display grayscale obtained to be displayed in a to-be-displayed image by a first sub-pixel, and obtaining a first display data voltage corresponding to the first display grayscale; determining whether the first display data voltage is greater than a low brightness demarcation voltage; and if yes, obtaining a first compensation data voltage corresponding to the first sub-pixel according to the first display grayscale; and determining, according to a lighting voltage corresponding to the first sub-pixel, whether the first compensation data voltage is in a dark-state voltage range; and if yes, compensating the first sub-pixel by using the lighting voltage corresponding to the first sub-pixel, and if not, compensating the first sub-pixel by using the first compensation data voltage.

Abstract: A display panel and a display device are provided. The display panel includes pixel row groups, scanning driving circuits, first data lines and second data lines. One pixel row group includes first pixel rows and one pixel row includes a first pixel and a second pixel. A luminous efficiency of color light of the first pixel is lower than a luminous efficiency of color light of the second pixel. One scanning driving circuit includes a first sub scanning driving circuit and a second sub scanning driving circuit. In at least one image frame, a duration during which the first pixel is connected to the first data line for transmitting data voltage controlled by the first sub scanning driving circuit is larger than a duration during which the second pixel is connected to the second data line for transmitting data voltage controlled by the second sub scanning driving circuit.

Abstract: Provided are a display panel, a crack detection method, and a display apparatus. The display panel has a display area and a non-display area surrounding the display area. The display panel includes a crack detection line located in the non-display area. The crack detection line includes a main detection line and at least one auxiliary detection line. The auxiliary detection line includes a first end and a second end each being connected to the main detection line.

Abstract: A display panel and a display device are described. In an embodiment, the display panel includes a first through-hole, a second through-hole, and a third through-hole that are provided in a display region. In an embodiment, a first non-display region surrounds the first through-hole and the second through-hole, and a second non-display region surrounds the third through-hole. In an embodiment, a minimum distance between the first through-hole and the second through-hole in a first direction is smaller than a minimum distance between the second through-hole and the third through-hole in the first direction. In an embodiment, the display region has a symmetry axis extending along a second direction. In an embodiment, the symmetry axis overlaps with the second through-hole, or is located between the second through-hole and the third through-hole. Thus, the overall symmetry of the display region is improved.

Abstract: Provided are a compound, an organic light-emitting element including the same, a display panel and a display device. The compound has a structure represented by Formula I. The organic light-emitting element includes an anode, a cathode and an organic thin film layer disposed between the anode and the cathode; where the organic thin film layer includes a light-emitting layer, and further includes any one or a combination of at least two of a hole transport layer, an electron blocking layer and an auxiliary light-emitting layer, and at least one of the hole transport layer, the electron blocking layer and the auxiliary light-emitting layer contains at least one of the compounds. The compound has a relatively shallow HOMO energy level, a relatively shallow LUMO energy level, a relatively high triplet energy level, an appropriate hole mobility, a relatively high Tg, a large molecular torque and good thermal stability.

Abstract: An organic light-emitting display panel has a display area and a non-display area and includes a base substrate, an organic light-emitting layer arranged at a side of the base substrate and including a plurality of light-emitting units, a pixel definition layer including a plurality of first openings, and a microlens layer arranged at a side of the pixel definition layer facing away from the base substrate and including at least one first sub-microlens. One light-emitting unit of the plurality of light-emitting units is located in one of the plurality of first openings. One first sub-microlens of the at least one first sub-microlens protrudes along a direction from the base substrate to the microlens layer. An orthogonal projection of one first sub-microlens of the at least one first sub-microlens on the base substrate overlaps with an orthogonal projection of the pixel definition layer on the base substrate.

Abstract: A display panel including a first pulse width modulation period and a second pulse width modulation period, in the first pulse width modulation period, a duty cycle of a light-emitting control signal in a light-emitting stage being a first duty cycle, in the second pulse width modulation period, the duty cycle of the light-emitting control signal in the light-emitting stage being a second duty cycle, the first duty cycle being greater than the second duty cycle, in the first pulse width modulation period, a time interval between the start time of the first reset stage and the start time of the data writing stage being t1, in the second pulse width modulation period, the time interval between the start time of the first reset stage and the start time of the data writing stage being t1, t1<t2.

Abstract: A driving method of a display panel and a display panel are provided. Time for displaying one frame includes N times of first node potential adjustment stages, a data writing stage, and at least one first bias stress stage; the data writing stage is after the first node potential adjustment stage and before the first bias stress stage; the N times first node potential adjustment stage include N reset stages and N first adjustment voltage writing stages; and an i-th first voltage writing stage is after an i-th reset stage. In the reset stage, the first reset module is turned on to write a reset signal to the first node; in the first adjustment voltage writing phase, the first reset module is turned off, and the compensation module is turned on to write a first adjustment voltage into the first node to adjust the bias state of the driving transistor.