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公开(公告)号：US11971662B2
公开(公告)日：2024-04-30
申请号：US17083979
申请日：2020-10-29
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Zhichong Wang , Fuqiang Li , Peng Liu , Jing Feng , Xinglong Luan , Guangcai Yuan , Xue Dong
CPC classification number: G03F7/22 , G03F7/2051 , G03F7/70466 , G03F7/70475
Abstract: A digital exposure machine and an exposure control method thereof are disclosed. The exposure control method of the digital exposure machine includes: determining a scanning direction of the digital exposure machine, wherein a plurality of sub-pixels in an array include multiple rows of sub-pixels arranged in the scanning direction, the multiple rows of sub-pixels including a first row of sub-pixels in the scanning direction; determining a starting scanning position, the starting scanning position being located on an outer side of the first row of sub-pixels in the scanning direction; and performing a plurality of scannings to expose a display region of the first display substrate to be exposed, wherein a scanning pitch for each of the plurality of scannings is integer times of a pitch of two adjacent rows of sub-pixels of the first display substrate in the scanning direction.
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公开(公告)号：US11270654B2
公开(公告)日：2022-03-08
申请号：US16643719
申请日：2019-01-14
Inventor： Zhichong Wang
IPC: G09G3/3291 , G09G3/3258 , G09G3/3266
Abstract: A pixel circuit, a display panel, and a method for driving a pixel circuit are disclosed. The pixel circuit includes a driving circuit, a data writing circuit, and a first light-emitting control circuit. The driving circuit is configured to control a driving current for driving a light-emitting component to emit light, the data writing circuit is configured to write a data signal into the driving circuit in response to a scanning signal, the first light-emitting control circuit is configured to apply a first voltage of a first voltage terminal to the driving circuit in response to a first light-emitting control signal, and the first light-emitting control signal and the scanning signal are provided by a same gate driving circuit.
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23.发明授权公开(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
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.
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24.发明授权公开(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
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.
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公开(公告)号：US11189230B2
公开(公告)日：2021-11-30
申请号：US16768395
申请日：2019-12-16
Inventor： Zhichong Wang , Fuqiang Li , Jing Feng , Xinglong Luan , Peng Liu
IPC: G09G3/3258
Abstract: A display device, a pixel compensation circuit and a driving method thereof are disclosed. The pixel compensation circuit includes: a driving transistor, an initialization circuit, a storage circuit, a first data writing circuit, a second data writing circuit, a compensation circuit and a light emitting control circuit. A first terminal of the storage circuit is coupled to the gate electrode of the drive transistor, and the first data writing circuit is configured to write a data signal to a second terminal of the storage circuit. The second data writing circuit is configured to change a potential of the second terminal of the storage circuit so that a potential of the first terminal of the storage circuit is associated with the data signal. The compensation circuit is configured to charge the first terminal of the storage circuit so that it is associated with a threshold voltage of the drive transistor.
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Patent Agency Ranking
公开(公告)号：US20210264862A1
公开(公告)日：2021-08-26
申请号：US17256184
申请日：2020-02-04
Inventor： Zhichong Wang
IPC: G09G3/3275
Abstract: A pixel circuit and a driving method therefor, and a display substrate and a display device are disclosed. The pixel circuit includes a compensation circuit. The compensation circuit may output an initial power supply signal to a first node, and a driving circuit may drive a light-emitting element to emit light according to a potential of the first node and a second power supply signal provided by a second power supply end. And, each driving circuit which the display panel includes may start to work from the same bias situation and drive the corresponding light-emitting element to emit light.
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公开(公告)号：US11100878B2
公开(公告)日：2021-08-24
申请号：US16461818
申请日：2018-11-05
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.
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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
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.
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29.发明申请公开(公告)号：US20190139475A1
公开(公告)日：2019-05-09
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
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.
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公开(公告)号：US10210835B2
公开(公告)日：2019-02-19
申请号：US15656419
申请日：2017-07-21
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Mingfu Han , Guangliang Shang , Seungwoo Han , Zhihe Jin , Xing Yao , Haoliang Zheng , Lijun Yuan , Zhichong Wang
Abstract: The present invention discloses a gate driver on array circuit and a driving method thereof, and a display device. The gate driver on array circuit comprises a first gate driver on array sub-circuit and a second gate driver on array sub-circuit; the first gate driver on array sub-circuit is configured to drive in a first working state which is a state in which no defect occurs in the first gate driver on array sub-circuit; the second gate driver on array sub-circuit is configured to drive in a second working state which is a state in which a defect occurs in the first gate driver on array sub-circuit. The present invention improves the yield rate of the gate driver on array circuit.
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