公开(公告)号：US20220246812A1

公开(公告)日：2022-08-04

申请号：US17522282

申请日：2021-11-09

Applicant: BOE Technology Group Co., Ltd.

Inventor： Jiao ZHAO ,  Haoliang ZHENG ,  Li XIAO ,  Dongni LIU ,  Liang CHEN ,  Hao CHEN ,  Minghua XUAN

IPC: H01L33/62 ,  H01L33/38 ,  H01L33/00

Abstract: The present disclosure discloses a light-emitting substrate, a method for forming the light-emitting substrate and a display device. The light-emitting substrate includes: a base substrate; a first signal line located at one side of the base substrate; an insulation layer located at one side of the first signal line away from the base substrate; an electrode layer located at one side of the insulation layer away from the base substrate and including a first electrode terminal, a second electrode terminal and a second signal line, where the first electrode terminal is electrically connected to the first signal line via a first through hole penetrating the insulation layer; and at least one light-emitting element bound and connected to the first electrode terminal and the second electrode terminal.

公开(公告)号：US20220114949A1

公开(公告)日：2022-04-14

申请号：US17265325

申请日：2020-03-17

Applicant: BOE Technology Group Co., Ltd.

Inventor： Minghua XUAN ,  Qi QI ,  Jing LIU ,  Han YUE ,  Dongni LIU

IPC: G09G3/32

Abstract: The present disclosure provides a pixel circuit including: a current control circuit and a time control circuit, the time control circuit includes: a first resetting sub-circuit configured to write a reference voltage and a first initialization voltage to a first node and a second node, respectively; a first data writing sub-circuit configured to write a first data voltage to the first node; a first threshold compensation sub-circuit configured to perform threshold compensation on a transistor within a switch sub-circuit; a ramp writing sub-circuit configured to write a preset ramp signal to the first node; and the switch sub-circuit configured to control electrical coupling and decoupling between a third node and a fourth node. The present disclosure further provides a driving method of the pixel circuit and a display device.

公开(公告)号：US20220101779A1

公开(公告)日：2022-03-31

申请号：US17408967

申请日：2021-08-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongni LIU ,  Minghua XUAN ,  Haoliang ZHENG ,  Li XIAO ,  Seungwoo HAN ,  Liang CHEN ,  Hao CHEN ,  Jiao ZHAO

IPC: G09G3/32

Abstract: A light-emitting driving circuit includes a driving sub-circuit, a control sub-circuit, a data writing sub-circuit and a compensation sub-circuit. The control sub-circuit is configured to initialize voltages of a first node and a control terminal of the driving sub-circuit in response to a second scan signal. The data writing sub-circuit is configured to write a data signal into a first terminal of the driving sub-circuit in response to a first scan signal. The driving sub-circuit is configured to output, from a second terminal of the driving sub-circuit, the data signal and a compensation signal. The compensation sub-circuit is configured to transmit the data signal and the compensation signal to the first node in response to the first scan signal, and adjust the voltage of the control terminal according to the data signal, the compensation signal, the initialized voltages of the first node and the control terminal.

公开(公告)号：US20220059728A1

公开(公告)日：2022-02-24

申请号：US17340672

申请日：2021-06-07

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lubin SHI ,  Bin QIN ,  Liang CHEN ,  Dongni LIU ,  Fangzhen ZHANG ,  Ke WANG

IPC: H01L33/48 ,  H01L25/075

Abstract: A displaying base plate and a fabricating method thereof. The displaying base plate includes a substrate, and a first flat layer on one side of the substrate; a first metal layer on one side of the first flat layer that is further away from the substrate; a second flat layer on sides of the first metal layer and the first flat layer that are further away from the substrate; and a second metal layer on one side of the second flat layer that is further away from the substrate; wherein the first metal layer includes a first metal trace, an orthographic projection of the second metal layer on the substrate and an orthographic projection of the first metal trace on the substrate have an overlapping part, and an orthographic projection of the second flat layer on the substrate covers the orthographic projection of the first metal trace on the substrate.

公开(公告)号：US20220059021A1

公开(公告)日：2022-02-24

申请号：US17426594

申请日：2020-12-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Minghua XUAN ,  Dongni LIU ,  Qi QI ,  Jing LIU ,  Han YUE

IPC: G09G3/32

Abstract: A pixel driving circuit includes a driving control sub-circuit and a time control sub-circuit. The driving control sub-circuit includes a first driving sub-circuit. The first driving sub-circuit is configured to output a driving signal to drive an element to be driven to operate. The time control sub-circuit includes a second driving sub-circuit. The second driving sub-circuit is configured to output a third voltage signal to make the first driving sub-circuit stop outputting the driving signal, so as to control operating duration of the element to be driven.

公开(公告)号：US20220005414A1

公开(公告)日：2022-01-06

申请号：US17294231

申请日：2020-09-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongni LIU ,  Minghua XUAN ,  Xiaochuan CHEN ,  Xue DONG ,  Haoliang ZHENG ,  Han YUE ,  Ning CONG

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

Abstract: A pixel driving circuit includes a data writing sub-circuit, a driving sub-circuit, and a control sub-circuit. The data writing sub-circuit is configured to: in response to a first scanning signal and a third scanning signal, write a first data signal into the driving sub-circuit; and in response to a second scanning signal and the third scanning signal, write a second data signal into the driving sub-circuit. The control sub-circuit is configured to, in response to an enable signal, connect a driving transistor to a first power supply voltage signal terminal and an element to be driven. The driving sub-circuit is configured to: according to the first data signal and a first power supply voltage signal, output a driving signal; and according to the second data signal and the first power supply voltage signal, control an operating state of the element to be driven.

公开(公告)号：US20210375702A1

公开(公告)日：2021-12-02

申请号：US17253960

申请日：2019-11-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Li XIAO ,  Dongni LIU ,  Minghua XUAN ,  Jiao ZHAO ,  Haoliang ZHENG ,  Zhenyu ZHANG ,  Liang CHEN ,  Hao CHEN ,  Jing LIU ,  Qi QI

IPC: H01L21/66 ,  H01L27/32 ,  H01L27/12 ,  H01L23/00 ,  G01R31/58 ,  G01R31/54

Abstract: The present application provides a method for detecting a broken fanout wire of a display substrate, and a display substrate, and belongs to the field of display technology. In the method for detecting a broken fanout wire, the display substrate includes a base substrate having first and second surfaces opposite to each other, and a plurality of connection structures disposed at intervals on the first surface; and each connection structure includes first and second pads and a fanout wire electrically connecting the first pad to the second pad. The method for detecting a broken fanout wire includes: forming at least one detection unit, which includes: connecting at least two connection structures in series through a connecting part; and measuring a head and an end of the detection unit to obtain resistance of the detection unit, and determining whether there is a broken fanout wire in the detection unit.

公开(公告)号：US20210375204A1

公开(公告)日：2021-12-02

申请号：US16757526

申请日：2019-08-07

Applicant: BOE Technology Group Co., Ltd.

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

IPC: G09G3/3233 ,  G09G3/3258 ,  H01L27/32

Abstract: The present disclosure relates to a pixel circuit, a driving method therefor, and a display apparatus. The pixel circuit includes an input sub-circuit, a light emission control sub-circuit and an organic light-emitting transistor. The input sub-circuit is coupled to a gate line, a data line and the light emission control sub-circuit and writes a data signal supplied via the data line into the light emission control sub-circuit under control of a gate scan signal supplied via the gate line. The light emission control sub-circuit is coupled to a control electrode of the organic light-emitting transistor and controls a control electrode voltage of the organic light-emitting transistor according to a written data signal to drive the organic light-emitting transistor to emit light. With the pixel circuit according to embodiments of the present disclosure, active driving of an organic light-emitting transistor is achieved when it is applied in a display apparatus.

公开(公告)号：US20210350747A1

公开(公告)日：2021-11-11

申请号：US16479694

申请日：2019-01-02

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

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

Abstract: A pixel circuit, a display panel, and a display device comprising the pixel circuit. The pixel circuit comprises a light emitting element and a driving circuit. The driving circuit comprises a light emission driving circuit for driving the light emitting element to emit light, and a light sensing driving circuit for controlling the light emitting element to convert external light incident on the light emitting element into an electrical signal. The pixel circuit integrates the light emission driving circuit with the light sensing driving circuit and can achieve the light sensing function for the screen of the display device, which makes it possible to not reserve an area dedicated to a camera on the surface of the display device.

公开(公告)号：US20210335257A1

公开(公告)日：2021-10-28

申请号：US16612321

申请日：2019-04-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/3258

Abstract: A pixel structure and a method of driving the same, a display panel and a display device. The pixel structure includes: at least two pixel circuits and a conduction control circuit connected to the at least two pixel circuits. The conduction control circuit is configured to connect the at least two pixel circuits in parallel in response to a first control signal and to connect the at least two pixel circuits in series in response to a second control signal.