Abstract: The present disclosure provides an aromatic heterocyclic compound having property of thermally activated delayed fluorescence (TADF). The aromatic heterocyclic compound has a structure represented by Formula (I), in which X1 and X2 each is S, O, Se, or C; D is an electron donor, A is an electron acceptor; m is a number of the electron donor D, and the m electron donors D are the same or different; n is a number of the electron acceptor, and the n electron acceptors are the same or different; and m and n are 1 or 2. The aromatic heterocyclic compound provides a high luminescence efficiency. Organic light-emitting display devices including such aromatic heterocyclic compound have improved luminescence efficiency, lower cost and longer service life by using the aromatic heterocyclic compound as a light-emitting material, a host material, or a guest material.

Abstract: Provided is an organic light-emitting display panel including gate lines, data lines intersecting with gate lines in an insulation manner, pins located in pin region; and sub-pixel units, each including cathode layer; an anode layer, and light-emitting layer between cathode layer and anode layer. The sub-pixel units include first to sixth sub-pixel units. The first to third sub-pixel units emit light with different colors. The fourth to sixth sub-pixel units emit light with different colors. The first and fourth sub-pixel units emit light with same color. A distance between first sub-pixel unit and pin region is larger than a distance between fourth sub-pixel unit and pin region. A distance between cathode layer of first sub-pixel unit and anode layer of first sub-pixel unit is larger than a distance between cathode layer of fourth sub-pixel unit and anode layer of fourth sub-pixel unit is a fourth distance.

Abstract: The present disclosure provides an image processing apparatus, an image processing method and a display apparatus. Where the image processing method includes: receiving a signal of an image to be displayed; correcting the grayscale of each pixel in the image to be displayed according to a pre-created correction data table including pixel positions, display correction data and edge correction data; and displaying according to the corrected grayscale of each pixel.

Abstract: The disclosure relates to the field of organic electroluminescence technologies, in particular to a compound, an organic electroluminescent device and a display device. The compound has a structure as shown in Formula (I), wherein X1-X9 are each independently a C or N atom, and at least one of X1-X9 is an N atom; L is selected from substituted or unsubstituted C5-C40 aryl, and substituted or unsubstituted C3-C40 heteroaryl; Ar is Formula (II), wherein X is selected from an O or S atom; R1-R6 are each independently selected from substituted or unsubstituted C5-C40 aryl, and substituted or unsubstituted C3-C40 heteroaryl; p1-p4 are each independently selected from 0 or 1; p5-p6 are each independently selected from 0, 1, 2, or 3; m is selected from 0, 1, 2, or 3; n is selected from 1, 2, or 3; and * represents a connection site.

Abstract: A compound and an organic optoelectronic device are provided. The compound has the following chemical formula (I): In the chemical formula (I), R1 to R10 are independently selected from hydrogen, deuterium, C1 to C30 alkyl, C1 to C30 heteroatom-substituted alkyl, C6 to C30 aryl, and C2 to C30 heteroaryl; X1 is selected from O, S, substituted or unsubstituted imino, substituted or unsubstituted methylene, and substituted or unsubstituted silylene. A substituent is selected from hydrogen, deuterium, C1 to C30 alkyl, C1 to C30 heteroatom-substituted alkyl, C6 to C30 aryl, and C2 to C30 heteroaryl.

Abstract: The present application discloses an organic light emitting display panel, a driving method thereof and an organic light emitting display apparatus. The organic light emitting display panel comprises: a pixel array, comprising pixel regions in M rows and N columns; a plurality of pixel driving circuits each comprising a light emitting diode and a driving transistor for driving the light emitting diode, the light emitting diode being arranged in one of the pixel regions; and a plurality of pixel compensation circuits, each configured to provide a compensated light emitting control signal for a gate of the driving transistor to correct brightness of the light emitting diode in one of the plurality of pixel driving circuits. According to the present disclosure, the final light emitting current may be unrelated to the threshold voltage of the driving transistor, the carrier mobility and aging of the light emitting diode.

Abstract: A shift register element, a method for driving the same, and a display device are disclosed. The shift register element includes: an output module configured to provide an output terminal with a signal of a first signal terminal or a second signal terminal by voltage applied to a first node and a second node; a first driver configured to control voltage of the first node by the signal of the first input terminal; a second driver configured to control voltage of the second node by the signal of the first input terminal, and a signal of a third input terminal; a first feedback and adjustment module configured to control the voltage of the first node by the signals of the output terminal and the second input terminal; and a second feedback and adjustment module configured to control the voltage of the second node by the signal of the output terminal.

Abstract: A compound and an organic optoelectronic device are provided. The compound has the chemical formula (I): wherein: X1 to X5 are independently selected from C and N, when N is selected, a substituent may not be included; R1 to R9 are independently selected nom hydrogen, deuterium, C1 to C30 alkyl, C1 to C30 heteroatom-substituted alkyl, C6 to C30 aryl, C2 to C30 heteroaryl, and a chemical group A represented by the following chemical formula (II): and at least one of R1 to R9 is selected from the chemical group A. In the chemical formula (II), R10 to R17 are independently selected from hydrogen, deuterium, C1 to C30 alkyl, C1 to C30 heteroatom-substituted alkyl, C6 to C30 aryl, and C2 to C30 heteroaryl, and Y is selected from O, S, substituted or unsubstituted imino, substituted or unsubstituted methylene, and substituted or unsubstituted silylene.

Abstract: An organic light-emitting diode (OLED) display panel and an OLED display device are provided. The (OLED) display panel includes a first substrate; a first electrode layer disposed on the first substrate and including a plurality of first electrodes; a plurality of light-emitting devices disposed on a surface of the first electrode layer far away from the first substrate and having m number of colors, where m is a positive integer; and a second electrode layer disposed on a surface of the plurality of light-emitting devices far away from the first electrode layer. One light-emitting device corresponds to one color, and given a predetermined value of brightness, the light-emitting devices of two different colors are configured to have a predetermined absolute value of a threshold voltage difference.

Abstract: Provided are a display panel, an electronic device and a test method. The display panel includes: multiple data lines extending in a first direction; a display array including multiple pixel units arranged in an array, where the columns of the pixel units are electrically connected to the data lines respectively; a test switching circuit arranged at one side of the display array and test pins and a drive pin arranged at the other side of the display array in the first direction, where the test switching circuit includes a control end, input ends and output ends, the drive pin is connected to the control end, the test pins are configured to input a test signal and are connected to the input ends via a portion of the data lines, and the remaining data lines are connected to the output ends.

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: Provided are a display panel, a manufacturing method thereof and a display device. The display panel includes: a first substrate and a second substrate disposed opposite to each other, and a plurality of light-emitting units and a plurality of fingerprint identification units, disposed on one side of the first substrate facing to the second substrate. Each of the plurality of light-emitting units includes a first N-type semiconductor layer and a first P-type semiconductor layer, each of the plurality of fingerprint identification units includes a second N-type semiconductor layer and a second P-type semiconductor layer. The first N-type semiconductor layer and the second N-type semiconductor layer are disposed in a same layer, and the first P-type semiconductor layer and the second P-type semiconductor layer are disposed in a same layer.

Abstract: The present disclosure provides a shift register, a driving method of the shift register, an emission driving circuit, and a display device. The shift register includes a first node control module, a second node control module and an output control module. A first low level signal VGL1 provides low level at a first node, and a high level signal provides high level at a second node. The output control module includes a transistor for outputting low level, so that an output terminal outputs a third low level signal. The first low level signal VGL1, the third low level signal VGL3 and a threshold voltage Vth1 of the transistor in the output control module satisfy a relation of VGL3>VGL1+|Vth1|, such that in a phase following the output terminal outputting the high level signal, the output terminal completely outputs the third low level signal.

Abstract: Provided are an organic light-emitting display panel and a display device. The organic light-emitting display includes an array substrate and organic light-emitting components each having anode, cathode and organic functional layer. The organic functional layer includes an organic light-emitting layer, a first and second electron transmission layer and an electron injection layer. The first electron transmission layer and electron injection layer include a first dopant containing an alkaline earth metal element or a rare earth metal element. A work function ?1 of the electron injection layer and a work function ?2 of the cathode satisfy: ?1<?2, and the work function ?1 of the electron injection layer and a work function ?3 of the first dopant satisfy: ?1??3. LUMO1 and LUMO2 satisfy: |LUMO1?LUMO2|<0.18 eV.

Abstract: An organic light-emitting display panel is provided. The display panel includes a first driving voltage line arranged on an interlayer insulation layer and electrically connected with a source electrode or drain electrode of a driving transistor, a first reference voltage line arranged on a substrate and configured to extend in a first direction; a second reference voltage line arranged on the substrate and configured to extend in a second direction perpendicular to the first direction. A first electrode of the first switch transistor is electrically connected with the first reference voltage line, and a second electrode of the first switch transistor is electrically connected with a first electrode plate of a capacitor. A first electrode of the second switch transistor is electrically connected with the second reference voltage line, and a second electrode of the second switch transistor is electrically connected with a gate electrode of the driving transistor.

Abstract: An organic light-emitting diode (OLED) display panel, a fabrication method thereof, and an electronic apparatus including the OLED display panel are provided. The OLED display panel comprises: a substrate, an organic light-emitting device, and a capping layer. A material of the capping layer includes a compound of a chemical formula (I), L1, L2, L3, and L4 are independently selected from a hydrogen atom, a substituted or -unsubstituted alkyl, a substituted or unsubstituted alkenyl, a substituted or unsubstituted alkynyl, and a substituted or unsubstituted phenyl. A total quantity of benzene rings included in L1, L2, L3, and L4 is from 0 to 6. Y1, Y2, Y3, Y4, Y5, and Y6 are independently selected from a hydrogen atom, a substituted or unsubstituted alkyl, a substituted of unsubstituted alkenyl, and a substituted or unsubstituted alkynyl.

Abstract: The present disclosure relates to an OLED display panel. With the OLED display panel, a higher luminous efficiency is achieved by selecting a thermally activated delayed fluorescent material for doping into an organic light emitting layer and applying a compound having a specific energy level to match, thereby the luminous efficiency of an organic photo electronic device is improved.

Abstract: A flexible display device and an electronic device are provided. The flexible display device includes a flexible display panel, a rigid structure and a support structure. The support structure includes a set of support arms including a first support arm and a second support arm. The rigid structure is bent at a preset angle based on a combined state of the set of support arms so that the flexible display panel supported by the rigid structure is bent at a same angle as the preset angle. The combined state includes a first use state and a second use state. The first support arm and the second support arm are located on a same plane in the first use state. The preset angle is formed between the first support arm and the second support arm in the second use state.

Abstract: An organic light-emitting structure is described. The organic light-emitting structure includes a first light-emitting unit, a second light-emitting unit, a third light-emitting unit, and a fourth light-emitting unit. Each of the first light-emitting unit, the second light-emitting unit, the third light-emitting unit, and the fourth light-emitting unit comprises a first electrode, a second electrode, and an organic laminated body placed between the first electrode and the second electrode. One of the first electrode and the second electrode is a translucent electrode. At least one light-emitting unit is a fluorescent light-emitting unit. The color gamut range of the organic light-emitting structure is increased, the color saturation of the light-emitting device is improved, and quantity of colors is increased, so that the development trend of color reproducibility for the display devices can be satisfied.

Abstract: Disclosed are an image processing method, apparatus, system and a display device, which can be allowed to perform correction processing on the grayscale of each of the pixels, without any limitation on the shape of the display panel, and have relatively high flexibility. In addition, because the pre-created correction data table has the pixel position, the marker and the correction data contained herein, the correction data are correction data integrated from displaying correction data and edge correction data if the pixel position belongs to the preset edge portion and the correction data are the displaying correction data if the pixel position is other than that belonging to the edge portion, the displaying correction data and the correction data integrated from the displaying correction data and the edge correction data are contained in the correction data table, so that the logic resource occupied in the system can be effectively reduced.