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.

公开(公告)号：US20190005881A1

公开(公告)日：2019-01-03

申请号：US15744476

申请日：2017-06-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/3241

Abstract: A pixel circuit and a driving method thereof, a display panel. The pixel circuit includes a driving circuit, a light emitting circuit and a short-circuit protection circuit. The short-circuit protection circuit is connected in series between the driving circuit and the light emitting circuit, and the short-circuit protection circuit is configured to obtain an input terminal signal of the light emitting circuit and disconnect or connect an input signal branch of the light emitting circuit according to the obtained input terminal signal of the light emitting circuit.

公开(公告)号：US20180108860A1

公开(公告)日：2018-04-19

申请号：US15715323

申请日：2017-09-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: H01L51/52 ,  H01L27/32 ,  H05B33/08

CPC classification number: H01L51/5221 ,  H01L27/3206 ,  H01L27/3276 ,  H01L51/5206 ,  H05B33/0896

Abstract: A display substrate, a display panel and a display device are provided. The display substrate includes: a base substrate including a plurality of display units, wherein each of the plurality of display units is provided with an anode, an organic light-emitting layer and a cathode, wherein anodes of different display units are separated from each other; a plurality of cathode lines connected to the driving ICs, wherein the cathode lines are arranged between the cathode and the base substrate; an insulating layer arranged between the cathode lines and the cathodes, wherein a plurality of cathode windows corresponding to the cathode lines formed in the insulating layer, wherein at least part of the plurality of cathode windows respectively corresponds to at least two display regions, a cathode at each of the display region is connected to the respective cathode line via the cathode window corresponding to the display region.