公开(公告)号：US11763743B2

公开(公告)日：2023-09-19

申请号：US17424176

申请日：2021-01-13

Applicant: BOE Technology Group Co., Ltd.

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

IPC: G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/3233 ,  G09G3/2007 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0242 ,  G09G2320/0247

Abstract: A pixel circuit includes a current control sub-circuit, a combined light emitting sub-circuit, and a first light emitting element to an Nth light emitting element, N being a natural number greater than 1. The current control sub-circuit is configured to receive a display data signal and a light emitting control signal, control whether to generate a driving current according to the light emitting control signal, and control a current intensity of the generated driving current according to the display data signal. The combined light emitting sub-circuit is configured to receive the driving current and a first light emitting data signal to an Nth light emitting data signal and drive one or more of the first light emitting element to the Nth light emitting element to emit light according to the first light emitting data signal to the Nth light emitting data signal.

公开(公告)号：US11727841B2

公开(公告)日：2023-08-15

申请号：US17475529

申请日：2021-09-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Minghua Xuan ,  Haoliang Zheng ,  Liang Chen ,  Qi Qi ,  Jing Liu ,  Dongni Liu

IPC: G09G3/20 ,  G09G3/32 ,  H01L23/522 ,  H01L27/12 ,  H01L23/552

CPC classification number: G09G3/20 ,  G09G3/32 ,  H01L23/5226 ,  H01L23/552 ,  H01L27/124 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/0852 ,  G09G2310/0267

Abstract: The present disclosure provides a driving backplane, a display panel and a display device. The driving backplane comprises: a base substrate having a plurality of first conductive vias; a pixel circuit layer disposed on the base substrate and comprising a plurality of pixel circuits and a plurality of signal lines; a conductive portion, at least part of which is disposed in one first conductive via; a conductive pattern layer disposed on the base substrate and comprising a plurality of first conductive patterns; and a shielding layer disposed between the pixel circuit layer and the conductive pattern layer and having a plurality of hollow areas; wherein each of the plurality of signal lines is coupled to one first conductive pattern through at least one of the conductive portions.

公开(公告)号：US11587501B2

公开(公告)日：2023-02-21

申请号：US17509899

申请日：2021-10-25

Applicant: BOE Technology Group Co., Ltd.

Inventor： Seungwoo Han ,  Haoliang Zheng ,  Dongni Liu ,  Li Xiao ,  Liang Chen ,  Hao Chen ,  Jiao Zhao ,  Jin Yang ,  Minghua Xuan

IPC: G09G3/32

Abstract: The present disclosure provides a display apparatus, a pixel circuit and a method of driving a pixel circuit. In one or more embodiments, the pixel circuit includes a driving transistor, a data signal module and a bias signal module. A first electrode of the driving transistor is connected with a first power signal terminal, a second electrode of the driving transistor is connected with a first terminal of a light emitting element, and the driving transistor includes a first control electrode and a second control electrode. The data signal module is connected with the driving transistor, a data writing signal terminal and a data signal terminal. The bias signal module is connected with the driving transistor, a bias writing signal terminal and a bias signal terminal, and is configured to adjust a threshold voltage of the driving transistor under control of the bias writing signal terminal and the bias signal terminal.

公开(公告)号：US11538410B2

公开(公告)日：2022-12-27

申请号：US17407147

申请日：2021-08-19

Applicant: BOE Technology Group Co., Ltd.

Inventor： Dongni Liu ,  Minghua Xuan ,  Li Xiao ,  Haoliang Zheng ,  Liang Chen ,  Jiao Zhao ,  Seungwoo Han ,  Hao Chen

IPC: G09G3/3233 ,  G09G3/3291

Abstract: A pixel circuit, a driving method thereof and a light emitting device, and relates to the technical field of display. The pixel circuit comprises driving sub-circuit comprising a control terminal, first terminal and a second terminal, driving sub-circuit being configured to control driving signal flowing through the first terminal and second terminal according to signal of control terminal; first capacitor comprising first pole and second pole coupled to control terminal of driving sub-circuit; first data writing sub-circuit configured to write first initialization signal to first pole of first capacitor in response to first scanning signal, write first data signal into driving sub-circuit in response to first scanning signal, so that signal of control signal of driving sub-circuit changes with first data signal; second data writing sub-circuit configured to write second data signal to first pole of first capacitor in response to second scanning signal.

公开(公告)号：US11386846B2

公开(公告)日：2022-07-12

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：US11282425B2

公开(公告)日：2022-03-22

申请号：US16399510

申请日：2019-04-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Donghui Wang ,  Hong Wang ,  Lijun Yuan ,  Yanhui Xi ,  Haoliang Zheng ,  Yuxin Bi

IPC: G09G3/20

Abstract: The present disclosure discloses a source driving circuit and a display panel. The source driving circuit includes a plurality of driving sub-circuits, and each of the plurality of driving sub-circuits includes: a driver, including a plurality of source channels; a plurality of switches, first terminals of the plurality of switches are electrically connected to a plurality of data lines of a display panel in one-to-one correspondence, wherein each of the plurality of source channels is electrically connected to second terminals of at least two of the plurality of switches; and a control line, electrically connected to control terminals of the plurality of switches. Sub-pixels corresponding to data lines that are electrically connected to a same source channel through the switches have the same polarity and the same color.

公开(公告)号：US11263951B2

公开(公告)日：2022-03-01

申请号：US16336546

申请日：2018-08-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/20 ,  G11C19/28

Abstract: Disclosed is a shift register unit, including a first input circuit, an input control circuit, a pull-down control circuit, a pull-down circuit, an output circuit and a second input circuit. The first input circuit includes a first input sub-circuit, and is configured to, under control of the first signal input terminal, cause a voltage of the first voltage terminal to be output to a second terminal of the first input sub-circuit and output to the pull-up node via a first terminal thereof. The input control circuit is configured to pull down a potential of the second terminal to the potential of a first power supply voltage terminal under control of an enable signal terminal.

公开(公告)号：US11250750B2

公开(公告)日：2022-02-15

申请号：US16126032

申请日：2018-09-10

Applicant: BOE Technology Group Co., Ltd.

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

IPC: G11C19/00 ,  G09G3/20 ,  G11C19/28 ,  G09G3/3266 ,  G11C7/02 ,  G09G3/36

Abstract: A shift register circuit, a driving method thereof, a gate drive circuit and a display device are provided. The shift register circuit includes an input sub-circuit, an output sub-circuit, a discharge sub-circuit and a noise reduction sub-circuit. The input sub-circuit is connected to an input signal terminal, a first power source terminal and a pull-down node, and configured to, under the control of an input signal, output a first power source terminal signal to the pull-down node. In the shift register circuit, the discharge sub-circuit may control the potential of the pull-down node to be an ineffective potential at the input stage, thereby preventing the noise reduction sub-circuit from affecting the potentials of the pull-up node and the output terminal under the control of the pull-down node, and ensuring normal output of the shift register circuit.

公开(公告)号：US11100878B2

公开(公告)日：2021-08-24

申请号：US16461818

申请日：2018-11-05

Applicant: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD. ,  BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhichong Wang ,  Haoliang Zheng ,  Guangliang Shang ,  Seung Woo Han ,  Yinglong Huang

IPC: G09G3/36

Abstract: A shift register unit and a driving method, a grid driving circuit and a display device are disclosed. A shift register unit includes an input circuit, a first reset circuit, and an output circuit. The input circuit includes an input terminal configured to perform a first control on the first control node and the first node in response to an input signal of the input terminal, and then perform a second control on the first node under the control of the level of the first node, the first node is located in a path where the input signal incurs the first control; the first reset circuit is configured to reset the first control node in response to the first reset signal; the output circuit is configured to output an output signal to an output terminal under the control of the level of the first control node.

公开(公告)号：US11069274B2

公开(公告)日：2021-07-20

申请号：US16497199

申请日：2019-04-12

Applicant: BOE Technology Group Co., Ltd.

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

IPC: G09G3/20 ,  G11C19/28

Abstract: The embodiments of the present application provide a shift register unit and a method for driving the same, a gate driving circuit, and a display apparatus. Here, the shift register unit includes a first controlling sub-circuit, a first voltage dividing sub-circuit, a charging and discharging sub-circuit, and an outputting sub-circuit. Here, an output signal of the outputting sub-circuit is controlled by the charging and discharging sub-circuit. A first input signal and a second input signal input at a first input signal terminal Forward and a second input signal terminal Backward electrically coupled to the charging and discharging sub-circuit are pulse signals.