公开(公告)号：US11862098B2

公开(公告)日：2024-01-02

申请号：US17628779

申请日：2021-04-09

Applicant: BOE Technology Group Co., Ltd.

Inventor： Guangliang Shang ,  Jie Zhang ,  Shuo Huang ,  Libin Liu ,  Shiming Shi ,  Hao Liu ,  Haoliang Zheng ,  Xing Yao

IPC: G09G3/3266 ,  G09G3/36 ,  G11C19/28

CPC classification number: G09G3/3266 ,  G09G3/3677 ,  G11C19/28 ,  G09G2300/0852 ,  G09G2310/0286

Abstract: A shift register, a driving method, a driving control circuit and a display device. The method comprises: at a data refresh stage (T10), applying to an input signal end (IP) an input signal having a pulse level, applying a control clock pulse signal to a control clock signal end, and applying a noise reduction clock pulse signal to a noise reduction clock signal end; at a noise reduction holding phase (T21-1), applying a fixed voltage signal to the input signal end (IP), applying a fixed voltage signal to the control clock signal end, and applying a fixed voltage signal to the noise reduction clock signal end; and at a noise reduction enhancement stage (T22-1), applying a fixed voltage signal to the input signal end (IP), applying a fixed voltage signal to the control clock signal end, and applying a clock pulse signal to the noise reduction clock signal end.

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：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：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：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：US11176886B2

公开(公告)日：2021-11-16

申请号：US16319185

申请日：2018-05-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Lijun Yuan ,  Mingfu Han ,  Zhichong Wang ,  Haoliang Zheng ,  Seungwoo Han ,  Guangliang Shang

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3233 ,  G09G3/3208 ,  G09G3/3225

Abstract: The present disclosure discloses a circuit, a driving method thereof, a display panel and a display device. The circuit may include: a signal control module, a compensation control module, an initialization module, a data writing module, a driving control module, and a light emitting device. With the signal control module which is cooperated with other modules, the threshold voltage compensation time of the driving transistor can be increased, and the threshold voltage compensation can be ensured, thereby improving the image display quality.

公开(公告)号：US20210335210A1

公开(公告)日：2021-10-28

申请号：US16485994

申请日：2018-09-06

Applicant: BOE Technology Group Co., Ltd.

Inventor： Mingfu Han ,  Guangliang Shang ,  Xing Yao ,  Haoliang Zheng

IPC: G09G3/32

Abstract: The present application discloses a gate driver on array (GOA) circuit of a display panel. The GOA circuit includes a first GOA unit comprising a unit-circuitry structure having a pull-up node commonly coupled to three output transistors to control outputting of a first set of three gate-driving signals respectively to a first set of three gate lines associated with the display panel. The GOA circuit additionally includes a second GOA unit comprising a substantially same unit-circuitry structure cascaded with the first GOA unit and configured to control outputting a second set of three gate-driving signals respectively to a second set of three gate lines associated with the display panel. Moreover, the GOA circuit includes a capacitor connected from one in the second set of three output terminals of the second GOA unit to the pull-up node of the first GOA unit.

公开(公告)号：US20210201840A1

公开(公告)日：2021-07-01

申请号：US16084027

申请日：2018-04-08

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guangliang Shang ,  Liugang Zhou ,  Haoliang Zheng ,  Yaoqiu Jing ,  Mingfu Han ,  Seungwoo Han

IPC: G09G3/36

Abstract: The present disclosure is related to a driving circuit of a display panel. The driving circuit may include a turn-on voltage adjusting circuit. The turn-on voltage adjusting circuit may include a control subcircuit and a switching and voltage division subcircuit. The switching and voltage division subcircuit may include a switching subcircuit and a basic voltage division subcircuit. The switching subcircuit may be configured to perform voltage division of a signal outputted by the output terminal of the control subcircuit to form a voltage division feedback signal of the corresponding resolution under control of the control signal and output the voltage division feedback signal to the voltage division feedback node.

公开(公告)号：US20200258463A1

公开(公告)日：2020-08-13

申请号：US15768309

申请日：2017-10-31

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jiha Kim ,  Seungwoo Han ,  Guangliang Shang ,  Haoliang Zheng ,  Xing Yao ,  Zhichong Wang ,  Mingfu Han ,  Lijun Yuan ,  Yunsik IM ,  Jing Lv ,  Xue Dong

IPC: G09G3/36 ,  G11C19/28

Abstract: A shift register unit cascaded in a gate drive circuit, wherein the shift register unit comprises: a control circuit configured to output a control signal, at least two buffer circuits coupled to the control circuit, each of the at least two buffer circuits configured to output scan signal to a gate line. As such, the scan signals output from the at least two buffer circuits would be synchronized so that the gate lines respectively coupled to the two buffer circuits can be scanned simultaneously.