公开(公告)号：US20180374405A1

公开(公告)日：2018-12-27

申请号：US15744381

申请日：2017-06-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yongqian Li ,  Pan Xu ,  Zhidong Yuan

IPC: G09G3/00 ,  G09G3/3266

Abstract: A method and an apparatus for detecting a driving circuit. The method includes: inputting a data signal, a gate line scanning signal, a voltage signal, and a first control signal with a first voltage level into a data input end, a gate scanning input end, a power source end and a voltage sensing end of the driving circuit, respectively; by inputting a second control signal with a second voltage level into a sensing-scanning input end, controlling a pixel storage capacitor to be charged, and measuring a first voltage of an OLED anode end; by inputting the second control signal with a third voltage level to the sensing-scanning input end, controlling the pixel storage capacitor to be discharged, and measuring a second voltage of the OLED anode end; and determining whether the driving circuit has abnormity or not according to the first voltage and the second voltage.

公开(公告)号：US12250867B2

公开(公告)日：2025-03-11

申请号：US17791262

申请日：2021-09-28

Applicant: HEFEI BOE JOINT TECHNOLOGY CO., LTD. ,  BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhidong Yuan ,  Pan Xu ,  Yongqian Li ,  Can Yuan

IPC: H10K59/88 ,  G01R31/28 ,  G09G3/3233 ,  G09G3/3266 ,  H10K71/70

Abstract: A display panel, and a test method thereof, a display apparatus, each subpixel of the pixel array of the display panel includes a pixel circuit, a first signal line configured to provide a scanning signal to the pixel circuit, a scan driver circuit configured to provide the scanning signal to the pixel circuit and includes a shift register and a clock signal line in the display area; a test circuit board in the non-display area and including a test pad; and a test lead in the non-display area and electrically connected with the test pad. The first signal line includes a first part in the display area and a second part in the non-display area, the first part extends substantially along the first direction.

公开(公告)号：US20250037667A1

公开(公告)日：2025-01-30

申请号：US18696855

申请日：2023-02-01

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xing Zhang ,  Pan Xu ,  Ying Han ,  Chengyuan Luo ,  Donghui Zhao ,  Guangshuang Lv ,  Cheng Xu

IPC: G09G3/3266 ,  G09G3/32 ,  G09G3/3233 ,  G09G3/36

Abstract: A display panel includes a plurality of rows of pixel circuits, one or more rows of first dummy pixel circuits, a plurality of cascaded scanning driving units and at least one first dummy scanning driving unit. The plurality of rows of pixel circuits are arranged in a first direction. The one or more rows of first dummy pixel circuits are located on a side of the plurality of rows of pixel circuits in the first direction. Each scanning driving unit is configured to transmit a scanning signal to at least one row of pixel circuits. A first dummy scanning driving unit is cascaded to a first stage of scanning driving unit among the plurality of scanning driving units, and is configured to transmit; a cascade signal to the first stage of scanning driving unit; and transmit scanning signals to at least one row of first dummy pixel circuits.

公开(公告)号：US12211448B2

公开(公告)日：2025-01-28

申请号：US17779164

申请日：2021-03-29

Applicant: Hefei BOE Joint Technology Co.,Ltd. ,  BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhidong Yuan ,  Pan Xu ,  Yongqian Li ,  Can Yuan ,  Zhongyuan Wu

IPC: G11C19/00 ,  G09G3/32 ,  G09G3/3266 ,  G11C19/28

Abstract: A display panel includes sub-pixels and a scan driving circuit. The scan driving circuit includes a plurality of stages of shift registers including at least one first shift register and at least one second shift register, and a plurality of clock signal lines including at least one first sub-clock signal line and at least one second sub-clock signal line. Each shift register includes a first sub-circuit and a second sub-circuit. A first sub-clock signal line in the at least one first sub-clock signal line is electrically connected to a first sub-circuit in a first shift register in the at least one first shift register. A second sub-clock signal line in the at least one second sub-clock signal line is electrically connected to one sub-circuit of a first sub-circuit and a second sub-circuit in a second shift register in the at least one second shift register.

公开(公告)号：US12161036B2

公开(公告)日：2024-12-03

申请号：US17610409

申请日：2020-11-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pan Xu ,  Yongqian Li ,  Dacheng Zhang ,  Lang Liu

IPC: H10K59/13 ,  H10K50/824 ,  H10K59/131

Abstract: A display substrate has a display area including a plurality of sub-display areas. The display substrate includes a base, a plurality of columns of pixels, a plurality of first and second power lines disposed on the base. At least two columns of pixels are disposed in each sub-display area, and each column of pixels includes at least three columns of sub-pixels. At least one first power line is disposed in each sub-display area and configured to provide a first power signal to all sub-pixels in a sub-display area. The second power lines are configured to provide second power signals to all sub-pixels. A plurality of columns of sub-pixels are disposed between any two adjacent power lines, and any first and second power lines are each arranged between two adjacent columns of sub-pixels emitting light of a first color and sub-pixels emitting light of a second color.

公开(公告)号：US12133428B2

公开(公告)日：2024-10-29

申请号：US17753513

申请日：2021-03-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xing Zhang ,  Zhan Gao ,  Yicheng Lin ,  Pan Xu ,  Ying Han ,  Guoying Wang ,  Dacheng Zhang

IPC: H01L35/24 ,  H01L51/00 ,  H10K59/126 ,  H10K59/131 ,  H10K59/38 ,  H10K59/80

CPC classification number: H10K59/126 ,  H10K59/131 ,  H10K59/38 ,  H10K59/87

Abstract: A display substrate and a display device are provided. The display substrate includes a base substrate and a light-shielding layer. The base substrate includes a display region including repeating units, each repeating unit includes a transparent region and a pixel region, the pixel region includes sub-pixels, each sub-pixel includes a sub-pixel driving circuit and a light-emitting element, and the light-emitting element includes a first electrode, a second electrode, and a light-emitting layer located between the first electrode and the second electrode. The light-shielding layer is located on a side of the sub-pixel driving circuit close to the base substrate, at least part of an orthographic projection of the light-shielding layer on a main surface of the base substrate overlaps with an orthographic projection of the sub-pixel driving circuit on the main surface of the base substrate, and the light-shielding layer is connected with the second electrode.

公开(公告)号：US20240194688A1

公开(公告)日：2024-06-13

申请号：US17904748

申请日：2021-10-18

Applicant: BOE Technology Group Co., Ltd.

Inventor： Guoying Wang ,  Pan Xu ,  Dacheng Zhang ,  Xing Zhang ,  Ying Han ,  Chengyuan Luo ,  Zhen Song

IPC: H01L27/12

CPC classification number: H01L27/124 ,  H01L27/1248

Abstract: An array substrate having a connection pad in a connection pad area is provided. The connection pad includes a plurality of first probe contact pads, a plurality of second probe contact pads, a plurality of first connection lines coupled to the plurality of first probe contact pads, respectively, and a plurality of second connection lines coupled to the plurality of second probe contact pads, respectively; the plurality of first connection lines and the plurality of second connection lines being in two different layers. A total number of conductive layers electrically connected to a respective first connection line of the plurality of first connection lines is different from a total number of conductive layers electrically connected to a respective second connection line of the plurality of second connection lines.

公开(公告)号：US12004385B2

公开(公告)日：2024-06-04

申请号：US17418814

申请日：2020-11-13

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ying Han ,  Yicheng Lin ,  Pan Xu ,  Xing Zhang ,  Zhan Gao ,  Guang Yan

IPC: H10K59/13 ,  H10K59/122 ,  H10K59/124 ,  H10K59/131 ,  H10K59/38 ,  H10K71/00 ,  H10K59/12

CPC classification number: H10K59/13 ,  H10K59/122 ,  H10K59/124 ,  H10K59/131 ,  H10K59/38 ,  H10K71/00 ,  H10K59/1201

Abstract: Provided is a display substrate including a substrate, and a light-emitting device and an optical compensation structure which are located on the substrate. The optical compensation structure includes a photoelectric sensor, a transistor and a capacitor, and the photoelectric sensor is electrically connected to the transistor and the capacitor respectively. The photoelectric sensor includes a first electrode, a photosensitive layer located on a side of the first electrode distal from the substrate, and a second electrode located on a side of the photosensitive layer distal from the substrate; the transistor includes a source electrode, a drain electrode, a gate electrode and an active layer; and the capacitor includes a first electrode plate and a second electrode plate located on a side of the first electrode plate distal from the substrate.

公开(公告)号：US20240122034A1

公开(公告)日：2024-04-11

申请号：US17754000

申请日：2021-04-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pan Xu ,  Zhidong Yuan

IPC: H10K59/80 ,  H10K59/12 ,  H10K59/122

CPC classification number: H10K59/80522 ,  H10K59/1201 ,  H10K59/122 ,  H10K59/80523

Abstract: A display substrate, a display panel and a method of manufacturing a display substrate are provided. The display substrate includes: a substrate; a plurality of pixel units including at least a first pixel unit including a first light-emitting region and a first non-light-emitting region; a first light-emitting element arranged in the first light-emitting region, including a first electrode, a light-emitting layer and a second electrode; a scan driving circuit arranged in the first non-light-emitting region; and a first auxiliary electrode located in a first partial region in the first non-light-emitting region, wherein the scan driving circuit includes a plurality of scan driving sub-circuits located in a second partial region in the first non-light-emitting region; an orthographic projection of the first partial region on the substrate overlaps an orthographic projection of the second partial region on the substrate, and the first auxiliary electrode is electrically connected to the second electrode.

公开(公告)号：US20240057407A1

公开(公告)日：2024-02-15

申请号：US17754369

申请日：2021-04-30

Applicant: HEFEI BOE JOINT TECHNOLOGY CO., LTD. ,  BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can Yuan ,  Yongqian Li ,  Zhidong Yuan ,  Pan Xu

IPC: H10K59/131 ,  H10K59/121

CPC classification number: H10K59/131 ,  H10K59/1213 ,  H10K59/1216

Abstract: A display substrate and a display device are provided. The display substrate includes: a plurality of pixel units arranged on a base substrate, each pixel unit includes a plurality of sub-pixels, and each sub-pixel includes a light emitting element and a pixel driving circuit; a semiconductor layer arranged on the base substrate; a first conductive layer arranged on a side of the semiconductor layer; and a second conductive layer arranged on another side of the semiconductor layer. The pixel driving circuit includes a driving transistor, a switching transistor and a sensing transistor; the switching transistor includes a first gate electrode and a first active layer; the display substrate further includes a channel defining portion for defining a channel region of the switching transistor, and an orthographic projection of the channel defining portion substrate at least partially overlaps an orthographic projection of the first active layer on the base substrate.