公开(公告)号：US11798473B2

公开(公告)日：2023-10-24

申请号：US17309917

申请日：2020-09-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongni Liu ,  Minghua Xuan ,  Haoliang Zheng ,  Li Xiao ,  Liang Chen ,  Zhenyu Zhang ,  Jiao Zhao ,  Hao Chen

IPC: G09G3/3233 ,  G09G3/20

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

Abstract: The present disclosure provides a pixel driving circuit and a display panel. The pixel driving circuit includes: a data writing sub-circuit configured to transmit a data voltage signal to a first terminal of a driving sub-circuit in response to a first scanning signal; a threshold compensation sub-circuit configured to compensate for a threshold voltage of the driving sub-circuit in response to a second scanning signal; a storage sub-circuit configured to store the data voltage signal; the driving sub-circuit configured to provide a driving current for a light emitting device to be driven according to voltages of a first terminal and a control terminal of the driving sub-circuit; and a voltage maintaining sub-circuit configured to maintain the voltage of the control terminal of the driving sub-circuit when the voltage of the first terminal of the driving sub-circuit jumps.

公开(公告)号：US11621281B2

公开(公告)日：2023-04-04

申请号：US17499187

申请日：2021-10-12

Applicant: Hefei BOE Display Technology Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Zexu Liu ,  Jincheng Gao ,  Tao Zhu ,  Zhiqiang Hu ,  Qi Liu ,  Lixing Zhao ,  Liang Chen

IPC: H01L27/12 ,  G02F1/1335 ,  G02F1/1362 ,  G02F1/1343 ,  G02F1/1368

Abstract: A display substrate includes a base substrate; a gate metal pattern including a gate electrode of a thin film transistor and gate lines; a source-drain metal pattern including a source electrode and a drain electrode of the thin film transistor, and data lines, where the gate line cross the data line, to define a plurality of pixel regions arranged in an array form; and a first transparent metal pattern including a common electrode pattern. A minimum distance between each gate line and common electrode patterns in a row of pixel regions located in a same row as the gate line in a first direction is a first spacing, a minimum distance between the gate line and common electrode patterns in the other row of pixel regions adjacent to the gate line in the first direction is a second spacing, and the first spacing is greater than the second spacing.

公开(公告)号：US11450270B2

公开(公告)日：2022-09-20

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：US11335224B2

公开(公告)日：2022-05-17

申请号：US17255529

申请日：2020-05-07

Applicant: BOE Technology Group Co., Ltd.

Inventor： Dongni Liu ,  Minghua Xuan ,  Han Yue ,  Li Xiao ,  Liang Chen ,  Hao Chen

IPC: G09G3/00 ,  G09G3/32

Abstract: A pixel circuit, a driving method thereof, and a display device are provided. The pixel circuit includes: a light-emitting assembly including a plurality of light-emitting elements; a driving sub-circuit electrically coupled to the light-emitting assembly and configured to generate driving current for driving the light-emitting assembly; and a repair sub-circuit electrically coupled to the light-emitting assembly and configured to: receive a repair scanning signal (Gate_R, Gate_Ri) and a repair data signal (Data_R, Data_Ri), and provide the driving current to at least one light-emitting element capable of emitting light normally among the plurality of light-emitting elements under the control of the repair scanning signal (Gate_R, Gate_Ri) and the repair data signal (Data_R, Data_Ri).

公开(公告)号：US11244602B2

公开(公告)日：2022-02-08

申请号：US17086097

申请日：2020-10-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Haoliang Zheng ,  Dongni Liu ,  Minghua Xuan ,  Zhenyu Zhang ,  Li Xiao ,  Liang Chen ,  Hao Chen ,  Guangliang Shang ,  Lijun Yuan ,  Xing Yao

IPC: G09G3/32

Abstract: A shift register includes an input sub-circuit, a control sub-circuit, an output sub-circuit and a reset sub-circuit. The input sub-circuit is configured to transmit an input signal from an input signal terminal to a pull-up node. The control sub-circuit is configured to transmit a clock signal from a clock signal terminal to the control node. The output sub-circuit is configured to transmit a second voltage signal from a second voltage signal terminal to a first output signal terminal, and to transmit a first voltage signal from a first voltage signal terminal to the first output signal terminal. The reset sub-circuit is configured to transmit the second voltage signal to the control node to reset the control node, and to transmit a third voltage signal from the third voltage signal terminal to the pull-up node to reset the pull-up node.

公开(公告)号：US20210408202A1

公开(公告)日：2021-12-30

申请号：US16769214

申请日：2019-07-31

Applicant: BOE Technology Group Co., Ltd.

Inventor： Dongni Liu ,  Minghua Xuan ,  Liang Chen

IPC: H01L27/32

Abstract: An array substrate is provided. The array substrate includes a data line; a first voltage supply line; a second voltage supply line; and a pixel driving circuit. The pixel driving circuit includes one or more transistors in a first group and one or more transistors in a second group. A source electrode and a drain electrode of at least one transistor in the first group, the data line, the first voltage supply line, and the second voltage supply line are in a same layer. A source electrode and a drain electrode of at least one transistor in the second group are in a layer different from the first voltage supply line and the second voltage supply line.

公开(公告)号：US11177294B2

公开(公告)日：2021-11-16

申请号：US16701706

申请日：2019-12-03

Applicant: BOE Technology Group Co., Ltd.

Inventor： Dongni Liu ,  Minghua Xuan ,  Li Xiao ,  Detao Zhao ,  Liang Chen ,  Hao Chen

IPC: H01L23/48 ,  H01L27/12 ,  H01L21/288 ,  H01L21/768 ,  H01L23/522

Abstract: An array substrate, a manufacturing method thereof and a display device are provided. A display unit is disposed on a first surface of a base substrate, and a driving circuit is disposed on a second surface of the base substrate opposite to the first surface, the driving circuit is electrically connected with the display unit through a signal connection structure in at least one via structure, a longitudinal section of the at least one via hole is a trapezoid, and a length of a bottom edge of the trapezoid at one side of the trapezoid close to the display unit is larger than a length of a bottom edge of the trapezoid at one side of the trapezoid away from the display unit.

公开(公告)号：US10948535B2

公开(公告)日：2021-03-16

申请号：US16391833

申请日：2019-04-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Detao Zhao ,  Liang Chen ,  Li Xiao ,  Dongni Liu ,  Lei Wang ,  Minghua Xuan ,  Xiaochuan Chen

IPC: G01R31/3187 ,  G01R31/28 ,  G09G3/20 ,  G09G3/3225 ,  H01L27/32

Abstract: The present disclosure provides a display device and a detection method for the display device. The display device includes a display area and a non-display area. The display device comprises: a pixel array at the display area, a plurality of switching transistors at the non-display area, and at least one detection line at the non-display area. The pixel array includes a plurality of sub-pixels. The plurality of switching transistors are electrically connected to a plurality of columns of sub-pixels of the pixel array in one-to-one correspondence. Each of the at least one detection line is electrically connected to a part of the plurality of switching transistors.

公开(公告)号：US10930221B2

公开(公告)日：2021-02-23

申请号：US16424870

申请日：2019-05-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Liang Chen ,  Lei Wang ,  Xiaochuan Chen ,  Minghua Xuan ,  Li Xiao ,  Dongni Liu ,  Shengji Yang ,  Pengcheng Lu ,  Ning Cong ,  Detao Zhao

IPC: G09G3/3291 ,  H01L51/52

Abstract: The present disclosure provides a light emitting unit, a driving method thereof, and a display device, belongs to the field of organic light emitting transistor (OLET) display technology, and can at least partially solve the problem of high power consumption of an existing OLET display technique. The light emitting unit includes an OLET and a driving circuit. The driving circuit is coupled to a control electrode and a first electrode of the OLET, and is configured to provide a data voltage to the control electrode of the OLET and provide a compensation voltage correlated with the data voltage to the first electrode of the OLET. A second electrode of the OLET is coupled to a first constant voltage terminal.

公开(公告)号：US10818228B2

公开(公告)日：2020-10-27

申请号：US16234017

申请日：2018-12-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Dongni Liu ,  Xiaochuan Chen ,  Minghua Xuan ,  Shengji Yang ,  Lei Wang ,  Li Xiao ,  Pengcheng Lu ,  Liang Chen

IPC: G09G3/3233 ,  G09G3/20

Abstract: A pixel circuit, a method for driving a pixel circuit and a display panel are provided. The pixel circuit includes a control sub-circuit, a shunt sub-circuit, a light emitting sub-circuit and a latch sub-circuit, where the control sub-circuit is configured to output to the latch sub-circuit a data signal from a data signal line in response to a scan signal from a scan signal line; the latch sub-circuit is configured to latch a first level signal and a second level signal in response to the data signal and the scan signal, and output the second level signal to light emitting sub-circuit in response to a switch signal from a switch signal line, to enable the light emitting sub-circuit to emit light; and the shunt sub-circuit is configured to shunt, in response to a control signal from a control signal line, the second level signal input to the light emitting sub-circuit, to adjust a light emitting brightness of the light emitting sub-circuit.