公开(公告)号：US20220310568A1

公开(公告)日：2022-09-29

申请号：US17696255

申请日：2022-03-16

Applicant: BOE Technology Group Co., Ltd.

Inventor： Dongni LIU ,  Minghua XUAN ,  Haoliang ZHENG ,  Liang CHEN ,  Li XIAO ,  Seungwoo HAN ,  Hao CHEN ,  Jiao ZHAO

IPC: H01L25/075 ,  H01L27/12 ,  H01L33/60 ,  H01L33/62

Abstract: A drive back plate is provided. The drive back plate includes a base substrate, and a drive circuit and a bonding structure disposed on the base substrate. The drive circuit includes a target drive structure, and a film layer disposed on at least one side of the target drive structure and adjacent to the target drive structure in the drive back plate is an inorganic insulating layer. The bonding structure is disposed on the same layer as the target drive structure, and the material of the bonding structure is the same as the material of the target drive structure.

公开(公告)号：US20220310011A1

公开(公告)日：2022-09-29

申请号：US17424176

申请日：2021-01-13

Applicant: BOE Technology Group Co., Ltd.

Inventor： Liang CHEN ,  Dongni LIU ,  Li XIAO ,  Minghua XUAN ,  Haoliang ZHENG ,  Zhenyu ZHANG ,  Hao CHEN ,  Jiao ZHAO ,  Qi QI

IPC: G09G3/3233 ,  G09G3/20

Abstract: A pixel circuit includes a current control sub-circuit, a combined light emitting sub-circuit, and a first light emitting element to an Nth light emitting element, N being a natural number greater than 1. The current control sub-circuit is configured to receive a display data signal and a light emitting control signal, control whether to generate a driving current according to the light emitting control signal, and control a current intensity of the generated driving current according to the display data signal. The combined light emitting sub-circuit is configured to receive the driving current and a first light emitting data signal to an Nth light emitting data signal and drive one or more of the first light emitting element to the Nth light emitting element to emit light according to the first light emitting data signal to the Nth light emitting data signal.

公开(公告)号：US20220277689A1

公开(公告)日：2022-09-01

申请号：US17744965

申请日：2022-05-16

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jiao ZHAO ,  Li XIAO ,  Minghua XUAN ,  Haoliang ZHENG ,  Dongni LIU ,  Jing LIU ,  Qi QI ,  Zhenyu ZHANG ,  Liang CHEN ,  Hao CHEN ,  Lijun YUAN

IPC: G09G3/32 ,  G11C19/28 ,  H01L25/075 ,  H01L27/02 ,  H01L27/12 ,  H01L33/62

Abstract: An array substrate includes pixel group(s) and pixel circuit group(s), each pixel group includes pixels, and each pixel includes sub-pixel(s). At least two pixel groups are arranged in a row direction; in a column direction, a length of a pixel group is greater than a length of a pixel circuit group electrically connected thereto; and orthographic projections of a sub-pixel and a pixel circuit group electrically connected to a pixel group to which the sub-pixel belongs on a plane does not overlap. Or, the at least two pixel groups are arranged in the column direction; in the row direction, a length of a pixel group is greater than a length of a pixel circuit group electrically connected thereto; and orthographic projections of a sub-pixel and a pixel circuit group electrically connected to a pixel group to which the sub-pixel belongs on another plane does not overlap.

公开(公告)号：US20220270549A1

公开(公告)日：2022-08-25

申请号：US17433402

申请日：2020-09-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Minghua XUAN ,  Dongni LIU ,  Haoliang ZHENG ,  Li XIAO ,  Xue DONG

IPC: G09G3/3258

Abstract: A pixel circuit includes an input circuit and a time control circuit. The input circuit includes a driving transistor, and the input circuit is configured to write a data signal into a gate of the driving transistor in response to a first gate signal, so that the driving transistor outputs a driving signal for driving an element to be driven to emit light according to a gate voltage and a source voltage thereof. The time control circuit is coupled to the input circuit and the element to be driven, and is configured to control the input circuit to transmit the driving signal to the element to be driven for a first duration, and control the input circuit to transmit the driving signal to the element to be driven for a second duration. The second duration is shorter than the first duration, and includes a plurality of phases spaced apart.

公开(公告)号：US20220254858A1

公开(公告)日：2022-08-11

申请号：US17585026

申请日：2022-01-26

Applicant: BOE Technology Group Co., Ltd.

Inventor： Hao CHEN ,  Jinxiang XUE ,  Liang CHEN ,  Jiao ZHAO ,  Li XIAO ,  Dongni LIU ,  Seungwoo HAN ,  Haoliang ZHENG ,  Minghua XUAN

IPC: H01L27/32 ,  H01L51/52 ,  G09F9/30

Abstract: A display panel is provided. The display panel includes a base substrate and a plurality of display units disposed on the base substrate. The display unit includes a signal line, a light-emitting device and a drive unit. The light-emitting device is disposed in a flexible display region of the base substrate, the drive unit is disposed in a pixel circuit region of the base substrate, and the signal line is connected with the light-emitting device and the drive unit.

公开(公告)号：US20220246074A1

公开(公告)日：2022-08-04

申请号：US17475529

申请日：2021-09-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Minghua XUAN ,  Haoliang ZHENG ,  Liang CHEN ,  Qi QI ,  Jing LIU ,  Dongni LIU

IPC: G09G3/20 ,  H01L27/12 ,  H01L23/552 ,  H01L23/522

Abstract: The present disclosure provides a driving backplane, a display panel and a display device. The driving backplane comprises: a base substrate having a plurality of first conductive vias; a pixel circuit layer disposed on the base substrate and comprising a plurality of pixel circuits and a plurality of signal lines; a conductive portion, at least part of which is disposed in one first conductive via; a conductive pattern layer disposed on the base substrate and comprising a plurality of first conductive patterns; and a shielding layer disposed between the pixel circuit layer and the conductive pattern layer and having a plurality of hollow areas; wherein each of the plurality of signal lines is coupled to one first conductive pattern through at least one of the conductive portions.

公开(公告)号：US20220238066A1

公开(公告)日：2022-07-28

申请号：US17491055

申请日：2021-09-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Liang CHEN ,  Dongni LIU ,  Haoliang ZHENG ,  Li XIAO ,  Seungwoo HAN ,  Jiao ZHAO ,  Hao CHEN ,  Minghua XUAN ,  Qi QI

IPC: G09G3/32

Abstract: The present application discloses a driving circuit and a display panel. The driving circuit includes a driving current generation circuit and a light emitting time control circuit. The driving current generation circuit is connected to a first reference voltage terminal, a data voltage terminal and the light emitting time control circuit, and is configured to generate a driving current under the control of the first reference voltage terminal and the data voltage terminal, and transmit the driving current to the light emitting time control circuit. The light emitting time control circuit is connected to the driving current generation circuit, a time control signal terminal, a reference signal terminal and a light emitting element, and is configured to control a duration of transmitting the driving current to the light emitting element under the control of the time control signal terminal and the reference signal terminal.

公开(公告)号：US20210375700A1

公开(公告)日：2021-12-02

申请号：US17255079

申请日：2019-11-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Li XIAO ,  Jiao ZHAO ,  Minghua XUAN ,  Dongni LIU ,  Haoliang ZHENG ,  Zhenyu ZHANG ,  Liang CHEN ,  Hao CHEN ,  Jing LIU ,  Qi QI

IPC: H01L21/66 ,  H01L27/12 ,  H01L25/16

Abstract: The present disclosure provides a method for detecting resistance of a side trace of a display substrate and the display substrate, and belongs to the field of display technology. In the method for detecting resistance of a side trace of a display substrate, the display substrate includes: a base substrate including a first surface and a second surface opposite to each other; a plurality of first pads at intervals on the first surface; and a plurality of second pads at intervals on the second surface; the first pad is electrically connected to a corresponding second pad through a side trace; the method includes forming at least one detection unit; wherein forming the detection unit includes: connecting two first pads through a connection part; and detecting two second pads in the detection unit, and obtaining resistance of the detection unit to obtain the resistance of the side trace.

公开(公告)号：US20190180834A1

公开(公告)日：2019-06-13

申请号：US16138878

申请日：2018-09-21

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lijun YUAN ,  Mingfu HAN ,  Seung Woo HAN ,  Xing YAO ,  Zhichong WANG ,  Guangliang SHANG ,  Haoliang ZHENG

IPC: G11C19/28 ,  G09G3/3258

Abstract: Embodiments of the present application provide a shift register unit, a method for driving the same, a gate driving circuit, and a display apparatus. The shift register unit comprises at least two sub-circuits of a first output sub-circuit, a second output sub-circuit, and a third output sub-circuit. The first output sub-circuit is configured to output a voltage at a signal output terminal to a reset signal output terminal; the second output sub-circuit is configured to output the voltage at the signal output terminal to a gating signal output terminal; and the third output sub-circuit is configured to output a voltage at a second voltage terminal to a light-emitting control signal output terminal or is configured to output a voltage at a first voltage terminal to the light-emitting control signal output terminal.

公开(公告)号：US20190108809A1

公开(公告)日：2019-04-11

申请号：US16149432

申请日：2018-10-02

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Haoliang ZHENG ,  Seungwoo HAN ,  Guangliang SHANG ,  Xing YAO ,  Lijun YUAN ,  Zhichong WANG ,  Mingfu HAN ,  Yinglong HUANG

IPC: G09G3/36 ,  G11C19/28

Abstract: A shift register, a gate drive circuit, a display apparatus and a driving method of the shift register are provided. The shift register includes an input subcircuit, a first and a second output subcircuits, a trigger signal input terminal, a first and a second signal output terminals, a first and a second clock terminals and a pull-up node, a control terminal and an output terminal of the input subcircuit are electrically coupled to the trigger signal input terminal and the pull-up node, respectively, for providing a valid signal received by the control terminal of the input subcircuit to the pull-up node. The shift register is provided with the first and second output subcircuits which share the same input subcircuit, greatly reducing the number of devices and thus greatly simplifying the structure of the cascaded shift registers and reducing the area of the whole display apparatus.