公开(公告)号：US20230418122A1

公开(公告)日：2023-12-28

申请号：US18465273

申请日：2023-09-12

Applicant: BOE Technology Group Co., Ltd.

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

IPC: G02F1/1362 ,  H10K59/131

CPC classification number: G02F1/136286 ,  H10K59/131

Abstract: The present disclosure discloses a display panel and a display device. The display panel includes: a base substrate, including a plurality of substrate via holes located in a display area of the display panel; and a plurality of driving signal lines and a plurality of bonding terminals, respectively located on different sides of the base substrate. At least one of the plurality of driving signal lines is electrically connected to at least one of the plurality of bonding terminals through the substrate via hole(s).

公开(公告)号：US11741883B2

公开(公告)日：2023-08-29

申请号：US16982062

申请日：2020-04-27

Applicant: BOE Technology Group Co., Ltd.

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

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2330/08

Abstract: The present disclosure proposes a pixel circuit, a control method thereof and a display panel. The pixel circuit includes a first light-emitting element, a pixel drive circuit connected with the first light-emitting element, a repair branch circuit connected with a node between the pixel drive circuit and the first light-emitting element, wherein the repair branch circuit includes a switch circuit and a second light-emitting element connected in series, and the switch circuit controls a connection or disconnection of the second light-emitting element with the pixel drive circuit; a control circuit connected with a control terminal of the switch circuit, a first data terminal and a first control terminal, the control circuit is configured to write a signal of the first data terminal to the control terminal of the switch circuit under a control of the first control terminal to control on or off of the switch circuit.

公开(公告)号：US11735115B2

公开(公告)日：2023-08-22

申请号：US17839178

申请日：2022-06-13

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

CPC classification number: G09G3/3258 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2310/0278 ,  G09G2310/061

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 to 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：US11637166B2

公开(公告)日：2023-04-25

申请号：US16651551

申请日：2019-11-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yingwei Liu ,  Qi Yao ,  Ke Wang ,  Zhanfeng Cao ,  Zhiwei Liang ,  Muxin Di ,  Guangcai Yuan ,  Xue Jiang ,  Dongni Liu

IPC: H01L27/32 ,  H01L51/56 ,  H01L51/00

Abstract: The present disclosure relates to a method of manufacturing an array substrate. The method of manufacturing an array substrate may include forming a main via hole in a substrate, filling a first conductive material in the main via hole, and forming a pixel circuit layer on a first surface of the substrate. The pixel circuit layer may include a first via hole. An orthographic projection of the first via hole on the substrate may at least partially overlap the corresponding main via hole.

公开(公告)号：US11537018B2

公开(公告)日：2022-12-27

申请号：US17281709

申请日：2020-01-10

Applicant: BOE Technology Group Co., Ltd.

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

IPC: G02F1/1362 ,  H01L27/32

Abstract: The present disclosure discloses a display panel and a display device. The display panel includes: a base substrate, including a plurality of substrate via holes located in a display area of the display panel; and a plurality of driving signal lines and a plurality of bonding terminals, respectively located on different sides of the base substrate. At least one of the plurality of driving signal lines is electrically connected to at least one of the plurality of bonding terminals through the substrate via hole(s).

公开(公告)号：US11514844B2

公开(公告)日：2022-11-29

申请号：US17424408

申请日：2020-09-10

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/32

Abstract: A pixel drive circuit includes a data write sub-circuit, an input and read sub-circuit, a drive sub-circuit, and a first output control sub-circuit. The data write sub-circuit is configured to transmit data signals input from a first data voltage terminal at different times to a first node. The input and read sub-circuit is configured to: transmit a signal of a signal transmission terminal to a second node in a write period, and transmit an electrical signal of the second node to the signal transmission terminal in a threshold voltage read period. The drive sub-circuit is configured to output a drive signal. The first output control sub-circuit is configured to: be coupled to an element to be driven, and transmit the drive signal output by the drive sub-circuit to the element to be driven.

公开(公告)号：US11348525B2

公开(公告)日：2022-05-31

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

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：US11348523B2

公开(公告)日：2022-05-31

申请号：US17271737

申请日：2020-07-29

Applicant: BOE Technology Group Co., Ltd.

Inventor： Liang Chen ,  Lei Wang ,  Li Xiao ,  Minghua Xuan ,  Dongni Liu ,  Hao Chen

IPC: G09G3/3233

Abstract: A display substrate, includes: a plurality of pixel driving circuits; a plurality of groups of light-emitting driving signal lines, wherein each driving signal line group of the plurality of groups of light-emitting driving signal lines includes a plurality of light-emitting driving signal lines; and a plurality of pixel circuit multiplexing units coupled to the plurality of pixel driving circuits, respectively, wherein each pixel circuit multiplexing unit includes N light-emitting units coupled to one of the plurality of pixel driving circuits and a group of light-emitting driving signal line.

公开(公告)号：US11335243B2

公开(公告)日：2022-05-17

申请号：US16904585

申请日：2020-06-18

Applicant: BOE Technology Group Co., Ltd.

Inventor： Haoliang Zheng ,  Minghua Xuan ,  Dongni Liu ,  Ning Cong ,  Zhenyu Zhang ,  Lijun Yuan ,  Yi Ouyang ,  Guangliang Shang

IPC: G09G3/32

Abstract: Disclosed are a display panel and a display device. The display panel includes M rows and N columns of pixel units. The display panel is divided into R regions along a column direction, and an i-th region includes: (1+M(i−1)/R)-th row to a (Mi/R)-th row of pixel units. The display panel further includes M shift registers, M light emitting drivers, R light emitting control scan staring signal terminals, R scan start signal terminals for controlling time length and R scan start signal terminals for controlling current. An i-th row of pixel units is connected with an i-th shift register and an i-th light emitting driver, a light emitting driver connected to a first row of pixel units in the i-th region is connected with an i-th scan start signal terminal for controlling light emission.

公开(公告)号：US11315475B2

公开(公告)日：2022-04-26

申请号：US17417243

申请日：2020-10-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Minghua Xuan ,  Ning Cong ,  Dongni Liu ,  Can Zhang

IPC: G09G3/20 ,  G09G3/3233 ,  G09G3/3291

Abstract: A pixel driving circuit includes: current control sub-circuit outputting driving current in response to light emission control signal of the light emission control signal terminal; time control sub-circuit transmitting time modulation signal of the time modulation signal terminal to the third control terminal in response to time control signal of the time control signal terminal, and controlling time during which the driving current flows through the light emitting element; initial time control sub-circuit transmitting initial control signal of the initial control signal terminal to the output terminal of the initial time control sub-circuit in response to initial time control signal of the initial time control signal terminal. Time control sub-circuit controls the time during which the driving current flows through the light emitting element in response to time modulation signal transmitted to the third control terminal and initial control signal transmitted to the third control terminal.