Patents by Inventor Zhichong Wang

Zhichong Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210312861
    Abstract: Disclosed are a pixel circuit and a driving method thereof, an array substrate and a display device. The pixel circuit includes: a driving circuit, including a control terminal, a first terminal and a second terminal, and configured to control a driving current flowing through the first terminal and the second terminal for driving a light-emitting element to emit light; an input circuit, configured to transmit a reset voltage and a data signal in response to a first scan signal; a reset circuit, configured to apply the reset voltage to the control terminal in response to a second scan signal; a compensation circuit, configured to store the data signal and to electrically connect the control terminal with the second terminal in response to a third scan signal; and a data writing circuit, configured to apply the data signal to the compensation circuit in response to the third scan signal.
    Type: Application
    Filed: May 14, 2020
    Publication date: October 7, 2021
    Applicants: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhichong WANG, Fuqiang LI, Jing FENG, Peng LIU, Xinglong LUAN, Gaoming SUN
  • Publication number: 20210264862
    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.
    Type: Application
    Filed: February 4, 2020
    Publication date: August 26, 2021
    Inventor: Zhichong Wang
  • Patent number: 11100878
    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.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: August 24, 2021
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD, BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhichong Wang, Haoliang Zheng, Guangliang Shang, Seung Woo Han, Yinglong Huang
  • Patent number: 11094277
    Abstract: A shift register, a gate drive circuit, a display apparatus and a driving method of the shift register are provided. The shift register includes an input subcircuit, a first and a second output subcircuits, a trigger signal input terminal, a first and a second signal output terminals, a first and a second clock terminals and a pull-up node, a control terminal and an output terminal of the input subcircuit are electrically coupled to the trigger signal input terminal and the pull-up node, respectively, for providing a valid signal received by the control terminal of the input subcircuit to the pull-up node. The shift register is provided with the first and second output subcircuits which share the same input subcircuit, greatly reducing the number of devices and thus greatly simplifying the structure of the cascaded shift registers and reducing the area of the whole display apparatus.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: August 17, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Haoliang Zheng, Seungwoo Han, Guangliang Shang, Xing Yao, Lijun Yuan, Zhichong Wang, Mingfu Han, Yinglong Huang
  • Publication number: 20210241673
    Abstract: A gate driving unit, a gate driving method, a gate driving circuit, a display panel and a display device are provided. The gate driving unit includes a start terminal, a first gate driving signal output terminal, a second gate driving signal output terminal, a pull-up control node control circuit, a pull-up node control circuit, configured to control a potential of a fist pull-up node and a potential of a second pull-up node based on the potential of the pull-up control node, a first gate driving signal output circuit, a second gate driving signal output circuit, and a pull-down node control circuit, configured to control and maintain the potential of the pull-down node under the control of a third clock signal and a fourth clock signal, and control to reset the potential of the pull-down node under the control of the potential of the pull-up control node.
    Type: Application
    Filed: March 28, 2019
    Publication date: August 5, 2021
    Applicants: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Peng LIU, Bailing LIU, Fuqiang LI, Zhichong WANG, Jing FENG, Xinglong LUAN
  • Publication number: 20210225293
    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.
    Type: Application
    Filed: January 14, 2019
    Publication date: July 22, 2021
    Inventor: Zhichong WANG
  • Publication number: 20210225679
    Abstract: A transfer printing method and a transfer printing apparatus. The transfer method includes: transferring a plurality of devices formed on an original substrate to a transfer substrate obtaining first position information of positions of the plurality of devices on the transfer substrate; obtaining second position information of corresponding positions, on a target substrate, of devices to be transferred; comparing the first position information with the second position information to obtain first target position information recording a first transfer position; and aligning the transfer substrate with the target substrate and performing a site-designated laser irradiation on at least part of devices on the transfer substrate corresponding to the first transfer position, simultaneously, according to the first target position information, so as to transfer the at least part of the devices from the transfer substrate to the target substrate.
    Type: Application
    Filed: March 19, 2019
    Publication date: July 22, 2021
    Inventors: Xinglong LUAN, Jing FENG, Fuqiang LI, Zhichong WANG, Peng LIU, Wusheng LI, Chunjing LIU
  • Publication number: 20210225312
    Abstract: A shift register unit and a drive method thereof, a gate driving circuit and a display device are provided. The shift register unit includes an input circuit, a pull-up node reset circuit, an output circuit and a coupling circuit. The input circuit is configured to charge a pull-up node in response to an input signal; the pull-up node reset circuit is configured to reset the pull-up node in response to a reset signal; the output circuit is configured to output a first clock signal to a first output terminal under control of a level of the pull-up node; and the coupling circuit is configured to control, by coupling, a potential of the pull-up node in response to a second clock signal.
    Type: Application
    Filed: June 7, 2018
    Publication date: July 22, 2021
    Inventors: Mingfu HAN, Guangliang SHANG, Seung Woo HAN, Xing YAO, Haoliang ZHENG, Lijun YUAN, Zhichong WANG
  • Patent number: 11069274
    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.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: July 20, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhichong Wang, Seungwoo Han, Guangliang Shang, Haoliang Zheng, Lijun Yuan, Xing Yao, Mingfu Han
  • Publication number: 20210217364
    Abstract: A pixel circuit, a pixel driving method and a display device are provided. The pixel circuit includes a light emitting element, a driving circuit, an energy storage circuit, an initialization circuit, a compensation control circuit, a light emitting control circuit and a written-in control circuit. The initialization circuit writes an initialization voltage into a control end of the driving circuit under the control of a first gate driving signal so as to conduct the connection between a first end of the driving circuit and a second end of the driving circuit; the compensation control circuit is configured to conduct the connection between the control end of the driving circuit and the second end of the driving circuit under the control of the second gate driving signal.
    Type: Application
    Filed: January 20, 2020
    Publication date: July 15, 2021
    Applicants: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Zhichong WANG
  • Publication number: 20210210018
    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.
    Type: Application
    Filed: December 16, 2019
    Publication date: July 8, 2021
    Inventors: Zhichong WANG, Fuqiang LI, Jing FENG, Xinglong LUAN, Peng LIU
  • Publication number: 20210209988
    Abstract: The present disclosure provides a shift register unit and a method for driving the same, a gate driving circuit and a method for driving the same, and a display apparatus. The shift register unit includes an input sub-circuit, a discharging control sub-circuit, a discharging sub-circuit, and an output sub-circuit. The input sub-circuit is configured to transmit an input signal at an input signal terminal to a first node under control of a voltage at a second node. The discharging control sub-circuit is configured to transmit a first clock signal at a first clock signal terminal to the second node under control of a voltage at the first node. The discharging sub-circuit is configured to transmit a first constant voltage signal at a first constant voltage signal terminal to an output signal terminal under control of the voltage at the second node.
    Type: Application
    Filed: January 8, 2020
    Publication date: July 8, 2021
    Applicants: Ordos Yuansheng Optoelectronics Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhichong Wang, Fuqiang Li, Peng Liu, Jing Feng, Xinglong Luan
  • Publication number: 20210166602
    Abstract: A shift register includes a first transistor, a second transistor, a pull-up node and a switch sub-circuit. A control electrode of the first transistor is connected to a signal input terminal, a first electrode of the first transistor is connected to a first voltage terminal, and a second electrode of the first transistor is connected to a first control node. A control electrode of the second transistor is connected to a reset signal terminal, a first electrode of the second transistor is connected to a second voltage terminal, and a second electrode of the second transistor is connected to the first control node. The switching sub-circuit is connected to the first control node and the pull-up node, and is configured to control a line between the first control node and the pull-up node to be closed and opened.
    Type: Application
    Filed: January 21, 2020
    Publication date: June 3, 2021
    Inventors: Zhichong WANG, Fuqiang LI, Jing FENG, Peng LIU, Xinglong LUAN
  • Publication number: 20210132501
    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.
    Type: Application
    Filed: October 29, 2020
    Publication date: May 6, 2021
    Inventors: Zhichong Wang, Fuqiang Li, Peng Liu, Jing Feng, Xinglong Luan, Guangcai Yuan, Xue Dong
  • Patent number: 10978114
    Abstract: A shift register unit, a gate driving circuit, a display device and a driving method are disclosed. The shift register unit includes an input circuit, a first reset circuit, an output circuit, and a node control circuit. The input circuit is configured to control a level of a first node in response to an input signal; the first reset circuit is configured to reset the first node in response to the first reset signal; the output circuit is configured to output a driving signal to an output terminal under control of the level of the first node; and the node control circuit is configured to control a level of a second node in response to the driving signal.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: April 13, 2021
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Zhichong Wang
  • Patent number: 10943552
    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.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: March 9, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiha Kim, Seungwoo Han, Guangliang Shang, Haoliang Zheng, Xing Yao, Zhichong Wang, Mingfu Han, Lijun Yuan, Yunsik Im, Jing Lv, Xue Dong
  • Patent number: 10923033
    Abstract: Disclosed are a pixel circuitry, a method for driving the same and a display device. The pixel circuitry includes a light-emitting element, a driving circuit, a compensation control circuit, an initialization circuit, an energy storage circuit, a writing control circuit and a light-emitting control circuit. The driving circuit is configured to drive the light-emitting element to emit light. The initialization circuit is configured to write an initialization voltage to a control end of the driving circuit to control the driving circuit to be turned on or off. The compensation control circuit is configured to turn on the driving circuit and perform threshold voltage compensation on the driving circuit. The writing control circuit is configured to write a data voltage inputted by a data line to a second end of the energy storage circuit and write a reference voltage to the second end of the energy storage circuit.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: February 16, 2021
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhichong Wang, Fuqiang Li, Jing Feng, Peng Liu, Xinglong Luan
  • Patent number: 10902810
    Abstract: The present disclosure relates to an array substrate gate driving unit and an apparatus thereof, a driving method and a display apparatus. The array substrate gate driving unit includes: an input circuit, connected with an input signal terminal and a pull-up node PU; a pull-down circuit, connected with a first voltage signal terminal and the pull-up node PU; a pull-down control circuit, connected with the pull-down circuit via a pull-down node PD; an output circuit, connected with a clock signal terminal CLK, a second voltage signal terminal and a control circuit; a reset circuit, connected with a reset signal terminal Reset, the first voltage signal terminal and the pull-up node PU; and the control circuit, connected with the pull-up node PU and the output circuit.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: January 26, 2021
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Mingfu Han, Guangliang Shang, Xing Yao, Seung Woo Han, Jiha Kim, Haoliang Zheng, Lijun Yuan, Zhichong Wang
  • Publication number: 20200388217
    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.
    Type: Application
    Filed: May 14, 2018
    Publication date: December 10, 2020
    Inventors: Lijun YUAN, Mingfu HAN, Zhichong WANG, Haoliang ZHENG, Seungwoo HAN, Guangliang SHANG
  • Publication number: 20200388201
    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.
    Type: Application
    Filed: April 12, 2019
    Publication date: December 10, 2020
    Inventors: Zhichong Wang, Seungwoo Han, Guangliang Shang, Haoliang Zheng, Lijun Yuan, Xing Yao, Mingfu Han