公开(公告)号：US20240429357A1

公开(公告)日：2024-12-26

申请号：US18274486

申请日：2022-08-31

Applicant: BOE Technology Group Co., Ltd.

Inventor： Can Zhang ,  Ning Cong ,  Xinxin Zhao ,  Minghua Xuan

IPC: H01L33/62 ,  H01L25/16

Abstract: The present application provides a light emitting panel, a preparation method thereof, and a light emitting apparatus. The light emitting panel includes: a driving baseboard, including first conductive portions and driving units arranged in an array, and the first conductive portions are insulated from the driving units; light emitting devices arranged on the driving baseboard in an array, each of the light emitting devices includes a first electrode and a second electrode, the second electrode being electrically connected to one of the driving units, and the first electrode being electrically connected to the first conductive portion; a junction where at least one first electrode is electrically connected to the first conductive portion is different from junctions where first electrodes other than said first electrode are electrically connected to first conductive portions other than said first conductive portion.

公开(公告)号：US11893934B2

公开(公告)日：2024-02-06

申请号：US17256504

申请日：2019-09-05

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Han Yue ,  Minghua Xuan ,  Can Zhang ,  Can Wang ,  Ming Yang ,  Ning Cong ,  Angran Zhang ,  Jiao Zhao ,  Xiaochuan Chen

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/029 ,  G09G2320/045 ,  G09G2330/08 ,  G09G2330/10 ,  G09G2330/12

Abstract: A pixel driving circuit includes: a driving sub-circuit configured to supply a driving signal to an element to be driven; a detection sub-circuit electrically connected to a detection control signal terminal and a detection node and configured to detect a voltage value of the detection node in response to a detection control signal received at the detection control signal terminal. The detection node is equivalent to a point on a connection line between the driving sub-circuit and the element to be driven.

公开(公告)号：US11749194B2

公开(公告)日：2023-09-05

申请号：US17787681

申请日：2021-09-01

Applicant: BOE Technology Group Co., Ltd.

Inventor： Can Zhang ,  Ning Cong ,  Minghua Xuan ,  Xiaochuan Chen

IPC: G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/3233 ,  G09G3/2007 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2300/0465 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2330/02

Abstract: A display substrate, a driving method therefor, and a display device are provided. The display substrate includes: a base substrate, provided with multiple pixel islands discretely provided, the pixel islands including multiple subpixels distributed in an array; a plurality of pixel circuits, arranged in the subpixels respectively, each of the pixel circuits including a driving transistor and a light-emitting component, a first electrode of the driving transistor being electrically connected to a first power supply end, a second electrode of the driving transistor being electrically connected to an anode of the light-emitting component, and a cathode of the light-emitting component being electrically connected to a second power supply end; and multiple light emission control circuits, each arranged at a gap between adjacent pixel islands, the light emission control circuit being electrically connected between the first power supply end and the first electrode of the driving transistor.

公开(公告)号：US11694602B2

公开(公告)日：2023-07-04

申请号：US17040988

申请日：2020-04-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ning Cong ,  Ming Yang ,  Han Yue ,  Can Wang ,  Can Zhang ,  Jiao Zhao ,  Minghua Xuan ,  Xiaochuan Chen

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/32 ,  G09G3/2007 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/061

Abstract: The present disclosure discloses a pixel drive circuit and a display panel. The pixel drive circuit includes a Micro-LED, a cathode of which is grounded; a light-emitting control circuit connected with an anode of the Micro-LED and configured to control an emission time of the Micro-LED; a current control circuit connected with the light-emitting control circuit and configured to output a preset current to the light-emitting control circuit to control the Micro-LED to work under a set current density, and luminance efficiency of the Micro-LED under the set current density is greater than a set threshold value.

公开(公告)号：US11615747B2

公开(公告)日：2023-03-28

申请号：US16956200

申请日：2019-08-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can Wang ,  Han Yue ,  Can Zhang ,  Minghua Xuan ,  Ming Yang

IPC: G09G3/3241

Abstract: Disclosed are a pixel circuit and a driving method thereof, an array substrate and a display apparatus. The pixel circuit includes a pixel sub-circuit. The pixel sub-circuit includes a first adjusting circuit and a second adjusting circuit. The first adjusting circuit is configured to receive a first data signal and a light emitting control signal to control a magnitude of a driving current used for driving a light emitting element to emit light; the second adjusting circuit is configured to receive a second data signal and a time control signal to control a time duration in which the driving current is applied to the light emitting element; and the time control signal changes within a time period during which the light emitting control signal allows the driving current to be generated. The pixel circuit can control the time duration in which the driving current is applied to the light emitting element, so that the light emitting element can realize display of various grayscales by controlling the light emitting time of the light emitting element, on the premise that the light emitting element operates at a relatively high current density.

公开(公告)号：US20220285467A1

公开(公告)日：2022-09-08

申请号：US17751456

申请日：2022-05-23

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ming Yang ,  Can Zhang ,  Minghua Xuan ,  Chuanxiang Xu ,  Feng Zhang ,  Zhongyuan Sun ,  Xiaochuan Chen

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: A method of fabricating a display panel includes forming a first conductive layer on a base substrate, wherein the first conductive layer is formed in an encapsulated area and a peripheral area of the display panel; forming an organic insulating layer on a side of the first conductive layer away from the base substrate, wherein the organic insulating layer is formed to be limited in the encapsulated area; forming a first inorganic insulating layer on a side of the organic insulating layer away from the base substrate; forming a second conductive layer on a side of the organic insulating layer and the first inorganic insulating layer away from the base substrate, wherein the second conductive layer is formed in the encapsulated area and the peripheral area; and forming a second inorganic insulating layer, the second inorganic insulating layer formed between the organic insulating layer and the first conductive layer.

公开(公告)号：US11341898B2

公开(公告)日：2022-05-24

申请号：US16605384

申请日：2019-03-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Han Yue ,  Minghua Xuan ,  Ning Cong ,  Xiaochuan Chen ,  Can Zhang ,  Can Wang ,  Ming Yang

IPC: G09G3/32

Abstract: A pixel driving circuit, a pixel driving method and a display device are provided. The pixel driving circuit includes a pixel sub-circuit and a power supply control sub-circuit, the pixel sub-circuit includes a first connection terminal, a second connection terminal and a light-emitting element, and is configured to respectively receive a first voltage and a second voltage to drive the light-emitting element to emit light. The power supply control sub-circuit is configured to, in a first state, control the first power supply terminal to provide the first voltage to the first connection terminal of the pixel sub-circuit, control the second power supply terminal to provide the second voltage to the second connection terminal of the pixel sub-circuit, and store energy; and in a second state, release the energy to the first connection terminal and the second connection terminal of the pixel sub-circuit to drive the light-emitting element to emit light.

公开(公告)号：US11315475B2

公开(公告)日：2022-04-26

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：US11200835B2

公开(公告)日：2021-12-14

申请号：US16611387

申请日：2019-05-05

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Han Yue ,  Xiaochuan Chen ,  Minghua Xuan ,  Can Zhang ,  Can Wang ,  Ming Yang

IPC: G09G3/32 ,  G09G3/20

Abstract: A pixel circuit and a driving method thereof, a display substrate, and a display device are provided. The pixel circuit includes a driving circuit and a compensation circuit, the compensation circuit can connect the output terminal with the second power terminal to receive a second power signal under control of the voltage signal of the control node and a level of the second driving node.

公开(公告)号：US11195463B2

公开(公告)日：2021-12-07

申请号：US16839590

申请日：2020-04-03

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Han Yue ,  Minghua Xuan ,  Can Zhang ,  Can Wang ,  Ning Cong ,  Xiaochuan Chen

IPC: G09G3/325 ,  G09G3/3291 ,  G09G3/36

Abstract: A pixel driving circuit includes a current control circuit and a time control circuit, the current control circuit controls to generate a driving current, and outputs the driving current through a driving current output terminal, the time control circuit includes a first data writing-in circuit and a driving time control circuit. The first data writing-in circuit writes a first data voltage provided by a first data line to the driving time control circuit under the control of a first gate driving signal provided by a first gate line. The driving time control circuit is connected to a reference voltage terminal, the current control circuit, the first data writing-in circuit, and a light emitting element, and controls a light emitting time period of the light emitting element based on the reference voltage and the first data voltage, the reference voltage terminal is used to provide the reference voltage.