公开(公告)号：US10885845B2

公开(公告)日：2021-01-05

申请号：US16022756

申请日：2018-06-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili Gai ,  Yi Cheng Lin ,  Ling Wang ,  Baoxia Zhang ,  Pan Xu

IPC: G09G3/32 ,  G09G3/3258 ,  G09G3/3233

Abstract: The present disclosure provides an OLED pixel driving circuit, a driving method thereof and a display device including the same. The OLED pixel driving circuit includes: a first transistor, providing driving current to an organic light emitting diode, and comprising a first terminal, second terminal and control terminal coupled to a first node, second node and third node respectively; a power switch unit, coupled between a power supply voltage and the second node; a first switch unit, coupled between a data line and a fourth node to couple a data voltage signal from the data line to the fourth node; a second switch unit, coupled between the third node and the second node to enable the first transistor connected as a diode; a first capacitor, coupled between the fourth node and the first node; and a second capacitor, coupled between the fourth node and the second node.

公开(公告)号：US11308889B2

公开(公告)日：2022-04-19

申请号：US16329352

申请日：2018-08-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Danna Song ,  Yi Cheng Lin ,  Pan Xu ,  Zhongyuan Wu

IPC: G09G3/3291 ,  G09G3/3258 ,  G09G3/00

Abstract: A detection method of a pixel circuit, a driving method of a display panel, and a display device are disclosed. The pixel circuit includes a driving transistor; and the detection method of the pixel circuit includes: in the first charge cycle, applying a first data voltage to a gate electrode of the driving transistor, acquiring a first sensing voltage at a first electrode of the driving transistor within the first duration after the application of the first data voltage and before the driving transistor is switched off, and determining whether the first sensing voltage is equal to reference sensing voltage.

公开(公告)号：US11183120B2

公开(公告)日：2021-11-23

申请号：US16648522

申请日：2019-03-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ling Wang ,  Pan Xu ,  Yi Cheng Lin ,  Xing Zhang ,  Ying Han ,  Guang Yan

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3291

Abstract: Disclosed are a pixel array substrate and a driving method thereof, a display panel, and a display device. The pixel array substrate includes a plurality of pixel units arranged in a plurality of pixel rows, and common electrodes distributed in the plurality of pixel rows. Each of the plurality of pixel units includes a light emitting element, first electrodes of light emitting elements of a plurality of pixel units in each of the plurality of pixel rows are electrically connected with each other to form a common electrode in the each of the plurality of pixel rows, and the common electrodes in the plurality of pixel rows are insulated from each other.

公开(公告)号：US11205381B2

公开(公告)日：2021-12-21

申请号：US15748731

申请日：2017-06-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yi Cheng Lin ,  Quanhu Li ,  Cuili Gai ,  Ling Wang ,  Baoxia Zhang

IPC: G09G3/3258 ,  H01L27/32

Abstract: A display panel, a display device and a compensation method are provided. The display panel includes at least one pixel unit group, at least one sensing line, a plurality of gate lines, a plurality of first data lines and a plurality of second data lines. Each pixel unit group includes a plurality of pixel units arranged in two rows and a plurality of columns, the plurality of pixel units in each pixel unit group are connected to a same one of the gate lines, one of two pixel units in each column of each pixel unit group is connected to one of the first data lines corresponding thereto, other one is connected to one of the second data lines corresponding thereto, the plurality of pixel units in each pixel unit group are connected to a same sensing line.

公开(公告)号：US11170718B2

公开(公告)日：2021-11-09

申请号：US16839580

申请日：2020-04-03

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yi Cheng Lin ,  Quanhu Li ,  Cuili Gai ,  Yu Wang ,  Mingi Chu ,  Chien Pang Huang

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3275

Abstract: A display panel, a display device, and a compensating method are disclosed. The display panel includes: a plurality of sub-pixels arranged in rows and columns, a plurality of data lines connected to the plurality of sub-pixels, and a plurality of sensing driving lines connected to the plurality of sub-pixels, each of plurality of the sub-pixels includes a pixel circuit; the plurality of sub-pixels constitute a plurality of pixel units, the plurality of pixel units are arranged in a plurality of rows and a plurality of columns, and each of the plurality of pixel units includes four sub-pixels; pixel circuits of the four sub-pixels are connected to a same data line of the plurality of data lines; and the pixel circuits of the four sub-pixels are connected to four sensing driving lines of the plurality of sensing driving lines in a one-to-one correspondence manner.

公开(公告)号：US11069291B2

公开(公告)日：2021-07-20

申请号：US16464510

申请日：2018-11-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili Gai ,  Yi Cheng Lin

IPC: G09G3/325 ,  G09G3/3266 ,  G09G3/3283

Abstract: A pixel circuit and a driving method thereof, and a display panel are provided. The pixel circuit includes a driving circuit, a data writing circuit, a storage circuit, an electrical compensation circuit, an optical compensation circuit. The driving circuit controls a driving current that drives a light emitting element to emit light. The data writing circuit writes a data signal to a control terminal of the driving circuit in response to a scanning signal. The storage circuit is used for storing the data signal. The electrical compensation circuit electrically connects the second terminal of the driving circuit to a first detecting terminal in response to an electrical detection enable signal. The optical compensation circuit applies an electrical signal generated according to the light emitted from the light emitting element to the second detecting terminal in response to an optical detection enable signal.

公开(公告)号：US20200082756A1

公开(公告)日：2020-03-12

申请号：US15748731

申请日：2017-06-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yi Cheng Lin ,  Quanhu Li ,  Cuili Gai ,  Ling Wang ,  Baoxia Zhang

IPC: G09G3/3258 ,  H01L27/32

Abstract: A display panel, a display device and a compensation method are provided. The display panel includes at least one pixel unit group, at least one sensing line, a plurality of gate lines, a plurality of first data lines and a plurality of second data lines. Each pixel unit group includes a plurality of pixel units arranged in two rows and a plurality of columns, the plurality of pixel units in each pixel unit group are connected to a same one of the gate lines, one of two pixel units in each column of each pixel unit group is connected to one of the first data lines corresponding thereto, other one is connected to one of the second data lines corresponding thereto, the plurality of pixel units in each pixel unit group are connected to a same sensing line.

公开(公告)号：US10984719B2

公开(公告)日：2021-04-20

申请号：US16607286

申请日：2019-04-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pan Xu ,  Cuili Gai ,  Yi Cheng Lin ,  Ling Wang

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3291

Abstract: A pixel circuit unit, a driving method thereof, a display panel and a display device are disclosed. The pixel circuit unit includes a plurality of pixel drive circuits and a voltage control circuit including a first terminal and a second terminal; the first terminal is connected with a first voltage terminal to receive a first supply voltage provided by the first voltage terminal; each pixel drive circuit includes a light-emitting drive circuit including a supply voltage receiving terminal and a control terminal; the supply voltage receiving terminal is electrically connected with the second terminal, so as to allow the supply voltage receiving terminal to be capable of receiving the first supply voltage; and the voltage control circuit is configured to be disconnected in a data voltage writing stage, so that the supply voltage receiving terminal does not receive the first supply voltage in the data voltage writing stage.

公开(公告)号：US10978524B2

公开(公告)日：2021-04-13

申请号：US16308537

申请日：2018-05-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili Gai ,  Yi Cheng Lin ,  Pan Xu ,  Baoxia Zhang ,  Quanhu Li ,  Ling Wang

IPC: H01L27/32 ,  H01L21/56 ,  H01L51/52 ,  H01L51/56

Abstract: An electroluminescent display substrate and a manufacturing method thereof, a display panel and a display apparatus are disclosed. The electroluminescent display substrate includes: a base substrate including a display area and a peripheral area surrounding the display area, wherein at least one OLED device is in the display area; a pixel defining layer in the display area and the peripheral area; at least one groove in the pixel defining layer in the peripheral area; wherein the at least one OLED device has a first electrode, the first electrode is on a side of the pixel defining layer away from the base substrate and extends to cover the groove.