公开(公告)号：US20210375203A1

公开(公告)日：2021-12-02

申请号：US16484983

申请日：2019-01-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/3233 ,  G09G3/20

Abstract: A display panel and a driving method thereof, and a display device are disclosed. The display panel includes a plurality of sub-pixel unit groups arranged in an array, the array includes a plurality of rows and a plurality of columns, each of the sub-pixel unit groups includes N sub-pixel units disposed along a column direction and a pixel driving circuit each of the N sub-pixel units includes a light-emitting circuit the pixel driving circuit is electrically connected to the light-emitting circuits of the N sub-pixel units, and the pixel driving circuit is configured to provide light-emitting driving currents to the light-emitting circuits of the N sub-pixel units.

公开(公告)号：US20210335215A1

公开(公告)日：2021-10-28

申请号：US16611742

申请日：2019-03-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/32

Abstract: A display driving circuit includes N levels of display driving sub-circuits and N levels of switching sub-circuits. Each display driving sub-circuit is connected to a corresponding switching sub-circuit. An nth-level display driving sub-circuit includes an nth-level gate driving sub-circuit and an nth-level light-emitting control sub-circuit. An nth-level switching sub-circuit includes an nth-level gate driving switching sub-circuit and an nth-level light-emitting control switching sub-circuit. The nth-level gate driving switching sub-circuit is configured to enable an nth-level gate driving signal output end to be electrically connected to a (2n−1)th gate line or a 2nth gate line. The nth-level light-emitting control switching sub-circuit is configured to enable an nth-level light-emitting control signal output end to be electrically connected to a (2n−1)th light-emitting control line or a 2nth light-emitting control line, where N is an integer greater than 1, and n is a positive integer smaller than or equal to N.

公开(公告)号：US20210200351A1

公开(公告)日：2021-07-01

申请号：US16078061

申请日：2017-12-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shengji YANG ,  Xue DONG ,  Jing LV ,  Xiaochuan CHEN ,  Dongni LIU ,  Lei WANG ,  Pengcheng LU ,  Jie FU ,  Han YUE ,  Li XIAO

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/3266 ,  G09G3/36

Abstract: A shift register unit includes an input circuit, a first control circuit, a second control circuit, a third control circuit, a first output circuit, and a second output circuit. The first and second output circuits selectively transfer a first reference voltage from a first reference voltage terminal and a third reference voltage from a third reference voltage terminal to an output terminal of the shift register unit. This allows the shift register unit to output a desired output signal in an easy manner.

公开(公告)号：US20210118366A1

公开(公告)日：2021-04-22

申请号：US16815408

申请日：2020-03-11

Applicant: BOE Technology Group Co., Ltd.

Inventor： Minghua XUAN ,  Li XIAO

IPC: G09G3/3258 ,  G09G3/3266

Abstract: A driving circuit, a display panel, a driving method and a display device. The driving circuit includes a pixel circuit and a plurality of light emitting devices; the pixel circuit includes: a data control circuit, a light emitting control circuit and a driving transistor, wherein at least two light emitting devices share the same pixel circuit, and thus, the light emitting devices is driven by the pixel circuit to emit light; and due to the effect of the light emitting control circuit, the light emitting devices can be controlled to emit light in a time-sharing manner.

公开(公告)号：US20200286921A1

公开(公告)日：2020-09-10

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

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：US20200035158A1

公开(公告)日：2020-01-30

申请号：US15735793

申请日：2017-06-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shengji YANG ,  Xue DONG ,  Jing LV ,  Xiaochuan CHEN ,  Dongni LIU ,  Pengcheng LU ,  Lei WANG ,  Jie FU ,  Han YUE ,  Li XIAO

IPC: G09G3/3258 ,  G09G3/3283 ,  H01L27/32

Abstract: A pixel driving circuit, a method for driving the same and a display device are provided. The pixel driving circuit includes a driving transistor, a reset control unit, a charging-discharging unit, a compensation control unit and a light-emission control unit, the reset control unit is connected to a reset control signal output end, an initial signal output end and a control node respectively, a gate electrode of the driving transistor is connected to the control node, the compensation control unit is connected to a compensation control signal output end, the light-emission control unit is connected to a high level output end, a main light-emission control line, a first electrode of the driving transistor, a second electrode of the driving transistor, N secondary light-emission control lines and N light-emission elements respectively.

公开(公告)号：US20190287455A1

公开(公告)日：2019-09-19

申请号：US16098235

申请日：2018-04-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pengcheng LU ,  Xiaochuan CHEN ,  Minghua XUAN ,  Shengji YANG ,  Lei WANG ,  Li XIAO ,  Dongni LIU ,  Jie FU ,  Han YUE ,  Jian GAO ,  Changfeng LI

IPC: G09G3/3225 ,  G09G3/32

Abstract: A pixel circuit and a driving method thereof, display panel and a display device are disclosed. The pixel circuit includes an input control sub-circuit, a switch control sub-circuit, a latch sub-circuit and a light-emitting sub-circuit. The input control sub-circuit writes a data signal into a first node under control of the gate signal terminal. The switch control sub-circuit conducts a first terminal or a second terminal of the latch sub-circuit with the first node under control of a switch signal control terminal. The latch sub-circuit outputs a high-level signal to the first node, when the first node is conductive with the first terminal and outputs a low-level signal to the first node, when the first node is conductive with the second terminal. The light-emitting sub-circuit emits light when the first node is supplied with the high-level signal.

公开(公告)号：US20190197948A1

公开(公告)日：2019-06-27

申请号：US16329419

申请日：2018-05-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Minghua XUAN ,  Shengji YANG ,  Lei WANG ,  Li XIAO ,  Jie FU ,  Pengcheng LU ,  Dongni LIU ,  Xiaochuan CHEN

IPC: G09G3/3225 ,  G09G3/3275

CPC classification number: G09G3/3225 ,  G09G3/3208 ,  G09G3/3233 ,  G09G3/3275 ,  G09G2300/0842 ,  G09G2330/021

Abstract: A pixel circuit, a driving method thereof, and a display device are provided. A driving sub-circuit of the pixel circuit is configured to provide a data signal from the data signal terminal to the driving node under the control of a driving signal from the driving signal terminal. A holding sub-circuit of the pixel circuit is configured to acquire a potential of the driving node under the control of a first switching signal from the first switching signal terminal, and maintain the potential of the driving node unchanged under the control of a first power signal from the first power signal terminal and a second power signal from the second power signal terminal. A light emitting sub-circuit of the pixel circuit is connected to the driving node and is configured to emit light under the driving of the driving node.

公开(公告)号：US20190043422A1

公开(公告)日：2019-02-07

申请号：US15778047

申请日：2017-09-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pengcheng LU ,  Xiaochuan CHEN ,  Shengji YANG ,  Lei WANG ,  Dongni LIU ,  Jie FU ,  Li XIAO ,  Han YUE ,  Jian GAO ,  Changfeng LI

IPC: G09G3/3233 ,  G09G3/3258 ,  G09G3/00 ,  G09G3/3291

Abstract: Embodiments of the present disclosure provide a protection circuit and method, a pixel circuit, and a display device. The protection circuit comprises a determination circuit, a first coupling circuit, a first terminal and a second terminal. The determination circuit is coupled to the first terminal and the first coupling circuit, and is configured to determine whether the voltage at the first terminal of the protection circuit belongs to one of a first predetermined range and a second predetermined range. The first coupling circuit is coupled to the first terminal, the second terminal and the determination circuit, and is configured to: couple the first terminal to the second terminal in response to the voltage at the first terminal belonging to the first predetermined range; and decouple the first terminal from the second terminal in response to the voltage at the first terminal belonging to the second predetermined range.

公开(公告)号：US20190012965A1

公开(公告)日：2019-01-10

申请号：US15744986

申请日：2017-08-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jie FU ,  Xiaochuan CHEN ,  Shengji YANG ,  Lei WANG ,  Yankai GAO ,  Dongni LIU ,  Han YUE ,  Li XIAO ,  Pengcheng LU ,  Mingfu HAN

IPC: G09G3/3258 ,  H01L51/52 ,  H01L27/32

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2310/0264 ,  G09G2330/04 ,  G09G2330/08 ,  G09G2330/10 ,  H01L27/3276 ,  H01L51/5206 ,  H01L51/5221

Abstract: A pixel circuit and a driving method thereof, and a display device. The pixel circuit includes a driving circuit, a light emitting circuit, a fusing circuit and a fusing control circuit. The driving circuit is configured to convert a voltage signal input from a first voltage terminal into a driving current signal, and to output the driving current signal to the fusing circuit; the fusing circuit is configured to disconnect the light emitting circuit from the driving circuit; the fusing control circuit is configured to control the driving current signal to flow to the ground terminal under control of a signal input from the control line, to disconnect the light emitting circuit from the driving circuit; and the light emitting circuit is configured to emit light under control of the second voltage terminal in a case that the light emitting circuit is not disconnected from the driving circuit.