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：US20220084456A1

公开(公告)日：2022-03-17

申请号：US17417243

申请日：2020-10-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Minghua XUAN ,  Ning CONG ,  Dongni LIU ,  Can ZHANG

IPC: G09G3/20 ,  G09G3/3233 ,  G09G3/3291

Abstract: A pixel driving circuit includes: current control sub-circuit outputting driving current in response to light emission control signal of the light emission control signal terminal; time control sub-circuit transmitting time modulation signal of the time modulation signal terminal to the third control terminal in response to time control signal of the time control signal terminal, and controlling time during which the driving current flows through the light emitting element; initial time control sub-circuit transmitting initial control signal of the initial control signal terminal to the output terminal of the initial time control sub-circuit in response to initial time control signal of the initial time control signal terminal. Time control sub-circuit controls the time during which the driving current flows through the light emitting element in response to time modulation signal transmitted to the third control terminal and initial control signal transmitted to the third control 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：US20210359280A1

公开(公告)日：2021-11-18

申请号：US16481483

申请日：2019-01-07

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Liang CHEN ,  Lei WANG ,  Xiaochuan CHEN ,  Minghua XUAN ,  Dongni LIU ,  Li XIAO ,  MIng YANG ,  Detato ZHAO

IPC: H01L51/52 ,  H01L51/50 ,  H01L51/56 ,  H01L51/00

Abstract: An organic light emitting transistor and a manufacturing method thereof, a display panel and an electronic device are provided, and the organic light emitting transistor includes a gate electrode, a gate insulation layer, an active layer, a source electrode and a drain electrode; the active layer includes a two-dimensional semiconductor material layer and an organic light emitting layer, the two-dimensional semiconductor material layer and the organic light emitting layer are stacked to form a heterojunction, and the heterojunction is a heterotype heterojunction.

公开(公告)号：US20210335233A1

公开(公告)日：2021-10-28

申请号：US16484621

申请日：2019-01-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Liang CHEN ,  Lei WANG ,  Dongni LIU ,  Li XIAO ,  Minghua XUAN ,  Xiaochuan CHEN ,  Shengji YANG ,  Pengcheng LU ,  Detao ZHAO ,  Ning CONG

IPC: G09G3/3233 ,  G09G3/3275

Abstract: A pixel circuit and a method of driving the same, and a display device. The pixel circuit includes a plurality of pixel compensation circuits, and each pixel compensation circuit can be connected to M light-emitting units located in the same column. Each light-emitting control signal terminal of the M light-emitting control signal terminals included in each light-emitting control signal terminal group may be connected to a pixel compensation circuit group (i.e., K rows of pixels compensation circuits).

公开(公告)号：US20210225263A1

公开(公告)日：2021-07-22

申请号：US16652535

申请日：2019-10-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongni LIU ,  Minghua XUAN ,  Liang CHEN ,  Detao ZHAO ,  Li XIAO ,  Zheng FANG

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

Abstract: The present disclosure provides a display substrate, including: a substrate; a plurality of pixel units on the substrate, each of the pixel units having a light-emitting device therein; a power supply electrode configured to supply a power supply voltage to the light-emitting device, wherein the power supply electrode includes a first electrode layer and a second electrode layer, the second electrode layer has a mesh-shaped structure and is coupled to the first electrode layer through a via hole, and the first electrode layer includes a plurality of first electrode parts spaced apart from each other and each having a block shape, each of the first electrode parts being electrically coupled to a plurality of light-emitting devices for supplying the power supply voltage to the plurality of light-emitting devices.