Quantum dot light emitting diode and method for manufacturing the same, and display panel

    公开(公告)号:US11462706B2

    公开(公告)日:2022-10-04

    申请号:US16617891

    申请日:2019-01-29

    Abstract: Disclosed belongs to the technical field of displaying, and relates to a quantum dot light emitting diode and a method for manufacturing the same, and a display panel. The method for manufacturing the quantum dot light emitting diode comprises steps of forming a cathode, an electron transport layer doping a substance capable of trapping current carriers comprising a N-type metal oxide and a quantum dot material with a surface ligand comprising a hydroxyl group, a light emitting layer, a hole transport layer and an anode. The quantum dot light emitting diode can effectively reduce the electron transport or injection by incorporating a substance capable of trapping current carriers, and therefore significantly improve the luminous efficiency. Meanwhile, the PEDOT:PSS with high conductivity is used as the transparent anode, and thus the whole structure may be manufactured totally by using solution processes at low cost and without high vacuum coating machines.

    Display substrate, manufacturing method thereof, and display device

    公开(公告)号:US11436981B2

    公开(公告)日:2022-09-06

    申请号:US17282373

    申请日:2020-06-04

    Abstract: A display substrate, a manufacturing method and a display device are provided. The display substrate includes a scan driving circuit; the scan driving circuit includes a plurality of shift register units, at least one shift register unit includes a signal output line and an output circuit, the output circuit includes an output transistor and an output reset transistor; the signal output line includes a first output line portion extending along the first direction; the first output line portion is coupled to the second electrode of the output transistor or the output reset transistor through a plurality of first or second signal line via holes arranged in a signal line overlap area, and the plurality of first or second signal line via holes are arranged along the first direction.

    DISPLAY SUBSTRATE AND DISPLAY DEVICE

    公开(公告)号:US20220199733A1

    公开(公告)日:2022-06-23

    申请号:US17263576

    申请日:2020-04-14

    Abstract: A display substrate includes: a base substrate including a display region and a non-display region surrounding the display region; a plurality of sub-pixels in the display region; a plurality of power lines in the display region, the plurality of power lines extending along a first direction, and being electrically connected to the plurality of sub-pixels and being configured to provide power signals for the plurality of sub-pixels; a plurality of dummy sub-pixels in the non-display region on one side of the display region along the first direction; and a plurality of dummy power lines in the non-display region, the plurality of dummy power lines extending along the first direction, the plurality of dummy power lines and the plurality of dummy sub-pixels being on the same side of the display region.

    ARRAY SUBSTRATE, DISPLAY PANEL AND DISPLAY DEVICE

    公开(公告)号:US20220115482A1

    公开(公告)日:2022-04-14

    申请号:US17262306

    申请日:2020-03-31

    Abstract: A display area of the array substrate only includes first sub-pixels capable of emitting light. In each two adjacent rows of first sub-pixels, a gate line electrically connected to one row of the plurality of rows of first sub-pixels and a reset signal line electrically connected to another row of the plurality of rows of first sub-pixels are electrically connected to the same first gate drive circuit. A target line electrically connected to a first row of the plurality of rows of first sub-pixels (i.e., another line other than the line electrically connected to the first gate drive circuit) is electrically connected to a second gate drive circuit. A target line electrically connected to a last row of the plurality of rows of first sub-pixels (i.e., another line other than the line electrically connected to the first gate drive circuit) is electrically connected to a third gate drive circuit.

    ELECTROLUMINESCENT DEVICE, MANUFACTURING METHOD THEREOF, AND DISPLAY APPARATUS

    公开(公告)号:US20210376277A1

    公开(公告)日:2021-12-02

    申请号:US17400457

    申请日:2021-08-12

    Inventor: Xin Zhang

    Abstract: An electroluminescent device, a manufacturing method thereof, and a display apparatus are provided. The electroluminescent device includes an anode layer, a light emitting layer, a cathode layer, a hole transport layer located between the anode layer and the light emitting layer, and a electron transport layer located between the cathode layer and the light emitting layer. The electroluminescent device further includes: a first interface modification layer between the light emitting layer and one of the hole transport layer and the electron transport layer; wherein an energy level of the first interface modification layer matches an energy level of the light emitting layer and an energy level of the one of the hole transport layer and the electron transport layer.

    Electroluminescent device, manufacturing method thereof, and display apparatus

    公开(公告)号:US11121340B2

    公开(公告)日:2021-09-14

    申请号:US16759779

    申请日:2019-08-19

    Inventor: Xin Zhang

    Abstract: An electroluminescent device, a manufacturing method thereof, and a display apparatus are provided. The electroluminescent device includes an anode layer, a light emitting layer, a cathode layer, a hole transport layer located between the anode layer and the light emitting layer, and a electron transport layer located between the cathode layer and the light emitting layer. The electroluminescent device further includes: a first interface modification layer between the light emitting layer and one of the hole transport layer and the electron transport layer; wherein an energy level of the first interface modification layer matches an energy level of the light emitting layer and an energy level of the one of the hole transport layer and the electron transport layer.

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