Patents by Inventor Ruifang DU

Ruifang DU 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: 20240135898
    Abstract: A display substrate and a display device are disclosed. The display substrate includes a base substrate and a plurality of shift register units; each of the plurality of shift register units includes an input circuit, an output circuit, a first reset circuit and a frame reset signal connection wire; the frame reset signal connection wire and is configured to provide a frame reset signal to the first reset circuit; the first reset circuit is configured to respond to the frame reset signal, so as to reset a first node and an output end within a time period between two display frames of the display substrate; the first reset circuit includes a first transistor and a second transistor, and the frame reset signal connection wire, a gate of the first transistor and a gate of the second transistor are provided on a first conductive layer.
    Type: Application
    Filed: December 26, 2023
    Publication date: April 25, 2024
    Applicants: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Rui MA, Xiaoye MA, Xianjie SHAO, Ruifang DU
  • Patent number: 11922846
    Abstract: Disclosed are a gate driving circuit and a display device. According to the gate driving circuit, in every five adjacent shift registers, the output control end of the first shift register is electrically connected to the input signal end of the fifth shift register; in every six adjacent shift registers, the output control end of the sixth shift register is electrically connected to the reset signal end of the first shift register.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: March 5, 2024
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Rui Ma, Xiaoye Ma, Xianjie Shao, Ruifang Du
  • Patent number: 11908430
    Abstract: A display substrate and a display device are disclosed. The display substrate includes a base substrate and a plurality of shift register units; each of the plurality of shift register units includes an input circuit, an output circuit, a first reset circuit and a frame reset signal connection wire; the frame reset signal connection wire and is configured to provide a frame reset signal to the first reset circuit; the first reset circuit is configured to respond to the frame reset signal, so as to reset a first node and an output end within a time period between two display frames of the display substrate; the first reset circuit includes a first transistor and a second transistor, and the frame reset signal connection wire, a gate of the first transistor and a gate of the second transistor are provided on a first conductive layer.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: February 20, 2024
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD. LTD.
    Inventors: Rui Ma, Xiaoye Ma, Xianjie Shao, Ruifang Du
  • Patent number: 11887554
    Abstract: A shift register includes an input sub-circuit, a first noise reduction sub-circuit, and a first pull-down sub-circuit. The first noise reduction sub-circuit is coupled to the pull-up node, the first pull-down node and a first voltage signal terminal, and is configured to transmit a first voltage signal to the pull-up node under control of the first pull-down node; the input sub-circuit is coupled to the pull-up node and a signal input terminal, and is configured to transmit an input signal to the pull-up node in response to the input signal; the first pull-down sub-circuit is coupled to the signal input terminal, the first pull-down node and the first voltage signal terminal, and is configured to transmit the first voltage signal to the first pull-down node in response to the input signal, so that the first noise reduction sub-circuit stops transmitting the first voltage signal to the pull-up node.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: January 30, 2024
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Rui Ma, Xiaoye Ma, Ruifang Du
  • Patent number: 11869899
    Abstract: The present disclosure provides a GOA circuit, an array substrate and a display device, wherein the GOA circuit comprises: a GOA area, and the GOA area comprises a plurality of GOA unit circuits cascaded with each other; a lead area, wherein at least one STV signal line and at least one non-STV signal line are arranged in the lead area, each STV signal line and each non-STV signal line is connected to at least one GOA unit circuit, and the non-STV signal line comprises at least one of a Vdd signal line, a Clk signal line, a VGH signal line and a VGL signal line; a projection of the at least one STV signal line on the lead area does not overlap a projection of the at least one non-STV signal line on the lead area.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: January 9, 2024
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ruifang Du, Lanzhou Ma, Haijiao Qian, Xiaoye Ma
  • Publication number: 20230213830
    Abstract: The present disclosure provides a display substrate and a display device. The display substrate includes a common electrode. The common electrode includes an electrode unit array. The electrode unit array includes a plurality of electrode units. Each of the electrode units corresponds to two adjacent sub-pixels. Each of the electrode units includes a boundary electrode line and an inner region defined by the boundary electrode line. The inner region includes a first region and a second region. The first region includes a plurality of first strip electrode lines having a same longitudinal direction. Two adjacent first strip electrode lines are not connected inside the first region. The second region includes a plurality of second strip electrode lines having a same longitudinal direction. Two adjacent second strip electrode lines are not connected inside the second region.
    Type: Application
    Filed: March 9, 2023
    Publication date: July 6, 2023
    Inventors: Ruifang Du, Fengzhen Lyu, Hui Li, Xiaoye Ma
  • Patent number: 11630359
    Abstract: The present disclosure provides a display substrate and a display device. The display substrate includes a common electrode. The common electrode includes an electrode unit array. The electrode unit array includes a plurality of electrode units. Each of the electrode units corresponds to two adjacent sub-pixels. Each of the electrode units includes a boundary electrode line and an inner region defined by the boundary electrode line. The inner region includes a first region and a second region. The first region includes a plurality of first strip electrode lines having a same longitudinal direction. Two adjacent first strip electrode lines are not connected inside the first region. The second region includes a plurality of second strip electrode lines having a same longitudinal direction. Two adjacent second strip electrode lines are not connected inside the second region.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: April 18, 2023
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ruifang Du, Fengzhen Lyu, Hui Li, Xiaoye Ma
  • Publication number: 20230012488
    Abstract: A display substrate and a display device are disclosed. The display substrate includes a base substrate and a plurality of shift register units; each of the plurality of shift register units includes an input circuit, an output circuit, a first reset circuit and a frame reset signal connection wire; the frame reset signal connection wire and is configured to provide a frame reset signal to the first reset circuit; the first reset circuit is configured to respond to the frame reset signal, so as to reset a first node and an output end within a time period between two display frames of the display substrate; the first reset circuit includes a first transistor and a second transistor, and the frame reset signal connection wire, a gate of the first transistor and a gate of the second transistor are provided on a first conductive layer.
    Type: Application
    Filed: May 19, 2021
    Publication date: January 19, 2023
    Applicants: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Rui MA, Xiaoye MA, Xianjie SHAO, Ruifang DU
  • Publication number: 20220415276
    Abstract: A shift register includes an input sub-circuit, a first noise reduction sub-circuit, and a first pull-down sub-circuit. The first noise reduction sub-circuit is coupled to the pull-up node, the first pull-down node and a first voltage signal terminal, and is configured to transmit a first voltage signal to the pull-up node under control of the first pull-down node; the input sub-circuit is coupled to the pull-up node and a signal input terminal, and is configured to transmit an input signal to the pull-up node in response to the input signal; the first pull-down sub-circuit is coupled to the signal input terminal, the first pull-down node and the first voltage signal terminal, and is configured to transmit the first voltage signal to the first pull-down node in response to the input signal, so that the first noise reduction sub-circuit stops transmitting the first voltage signal to the pull-up node.
    Type: Application
    Filed: February 19, 2020
    Publication date: December 29, 2022
    Inventors: Rui MA, Xiaoye MA, Ruifang DU
  • Publication number: 20220383804
    Abstract: Disclosed are a gate driving circuit and a display device. According to the gate driving circuit, in every five adjacent shift registers, the output control end of the first shift register is electrically connected to the input signal end of the fifth shift register; in every six adjacent shift registers, the output control end of the sixth shift register is electrically connected to the reset signal end of the first shift register.
    Type: Application
    Filed: February 3, 2021
    Publication date: December 1, 2022
    Inventors: Rui MA, Xiaoye MA, Xianjie SHAO, Ruifang DU
  • Patent number: 11514835
    Abstract: The present disclosure relates to a display substrate, a method for driving the same, and a display panel. The display substrate includes a base substrate as well as gate lines, data lines and a gate driver on the base substrate, the gate line being connected to the gate driver, and electrostatic rings and control components corresponding to at least one gate line are further disposed on the base substrate, each of the gate lines being connected to the electrostatic ring by a corresponding control component. The electrostatic ring is configured to load a control voltage to turn on the corresponding control component after the display panel is turned off, and the corresponding control component is configured to be turned on to change a voltage on the gate line into a turn-on voltage after the display panel is turned off.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: November 29, 2022
    Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Ruifang Du, Xibin Shao, Rui Ma, Xiaoye Ma
  • Patent number: 11410586
    Abstract: A display device and driving method thereof and a manufacturing method of a display substrate involve an array substrate and manufacturing method thereof. The array substrate includes: a base substrate; and a number of display sub-pixels arranged in a matrix on the base substrate. Each individual display sub-pixel includes: a pixel electrode; a first common electrode; and a second common electrode; wherein the first common electrode and the second common electrode are insulated from each other; and wherein the pixel electrode is configured to interact respectively with the first common electrode and the second common electrode so as to conduct one or more display operations.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: August 9, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Donghui Zhang, Xiaoye Ma, Guodong Liu, Xiaofang Gu, Ruifang Du, Huan Ni, Zhenyu Han
  • Patent number: 11361694
    Abstract: Embodiments of the present disclosure provide a shift register, a gate driving circuit, and a display apparatus. The shift register comprises a power consumption-reducing sub-circuit and an output sub-circuit; wherein: the power consumption-reducing sub-circuit is connected to a clock signal terminal, a control terminal, and the output sub-circuit, the power consumption-reducing sub-circuit is used to output a signal of the clock signal terminal to the output sub-circuit under the control of the control terminal; the output sub-circuit is connected to the clock signal terminal through the power consumption-reducing sub-circuit and is also connected to an output terminal and a pull-up node, the output sub-circuit is used to output an output signal of the power consumption-reducing sub-circuit to the output terminal under the control of the pull-up node.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: June 14, 2022
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ruifang Du, Ruiying Yang, Lingjuan Liu, Xiaoye Ma
  • Patent number: 11348951
    Abstract: A display substrate includes an active area; and a gate-driver-on-array (GOA) circuit area, wherein the active area includes a display pixel area and a dummy pixel area located in the periphery of the display pixel area, and wherein the GOA circuit area includes at least one dummy GOA circuit having an output terminal connected to a pixel electrode of at least one dummy pixel.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: May 31, 2022
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ruifang Du, Xiaofang Gu, Xiaoye Ma, Donghui Zhang, Yuxiang Zhang
  • Patent number: 11295647
    Abstract: The present disclosure provides a drift control circuit, a drift control method, a gate driving unit, a gate driving method and a display device. The drift control circuit includes: a first drift control sub-circuit configured to, during noise releasing performed by the first pull-down module, control first electrodes of pull-down transistors included in the second pull-down module to be coupled to a first control voltage terminal, which is configured to input a first voltage to the first pull-down module during noise releasing performed by the first pull-down module; and a second drift control sub-circuit configured to, during noise releasing performed by the second pull-down module, control first electrodes of pull-down transistors included in the first pull-down module to be coupled to a second control voltage terminal, which is configured to input the first voltage to the second pull-down module during noise releasing performed by the second pull-down module.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: April 5, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ruifang Du, Xiaoye Ma, Xiaofang Gu, Donghui Zhang, Guodong Liu
  • Publication number: 20220102383
    Abstract: The present disclosure provides a GOA circuit, an array substrate and a display device, wherein the GOA circuit comprises: a GOA area, and the GOA area comprises a plurality of GOA unit circuits cascaded with each other; a lead area, wherein at least one STV signal line and at least one non-STV signal line are arranged in the lead area, each STV signal line and each non-STV signal line is connected to at least one GOA unit circuit, and the non-STV signal line comprises at least one of a Vdd signal line, a Clk signal line, a VGH signal line and a VGL signal line; a projection of the at least one STV signal line on the lead area does not overlap a projection of the at least one non-STV signal line on the lead area.
    Type: Application
    Filed: June 24, 2021
    Publication date: March 31, 2022
    Inventors: Ruifang DU, Lanzhou MA, Haijiao QIAN, Xiaoye MA
  • Patent number: 11289039
    Abstract: The present application discloses a gate-driving unit circuit. The gate-driving unit circuit includes an input sub-circuit coupled to an input terminal and a pull-up node, and configured to charge a pull-up node to a turn-on voltage level. Additionally, the gate-driving unit circuit includes a pre-pull-down sub-circuit coupled to a pull-down node, a pre-pull-down node, and a reference voltage terminal, and configured to pull down voltage levels at the pull-down node and the pre-pull-down node to a turn-off voltage level before the pull-up node is charged to the turn-on voltage level. Therefore, potential charging delay in the pull-down node caused by a transistor threshold voltage shift is avoided. The gate-driving unit circuit further includes a pull-down sub-circuit, a pull-down control sub-circuit, a noise-reduction sub-circuit, a reset sub-circuit, and an output sub-circuit to couple with the input sub-circuit and the pre-pull-down sub-circuit to output a gate-driving signal.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: March 29, 2022
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ruifang Du, Zijun Cao, Xiaoye Ma
  • Patent number: 11249332
    Abstract: A liquid crystal display device and a drive method thereof are disclosed. The liquid crystal display device includes a display panel and a controller. The display panel includes a display region, a plurality of pixels arranged in a matrix are provided in the display region, each of the plurality of pixels includes a red sub-pixel, a blue sub-pixel and a green sub-pixel, and the display region includes a middle portion and a peripheral portion outside the middle portion, and at least one first pixel is provided in the peripheral portion, the controller is configured to relatively increase a luminous intensity of a blue sub-pixel in the first pixel.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: February 15, 2022
    Assignees: BOE Technology Group Co., Ltd., Hefei Xinsheng Optoelectronics Technology Co., Ltd.
    Inventors: Ruifang Du, Zijun Cao, Yuanyuan Liu, Xiaoye Ma, Rui Ma
  • Publication number: 20210407354
    Abstract: A display device and driving method thereof and a manufacturing method of a display substrate involve an array substrate and manufacturing method thereof. The array substrate includes: a base substrate; and a number of display sub-pixels arranged in a matrix on the base substrate. Each individual display sub-pixel includes: a pixel electrode; a first common electrode; and a second common electrode; wherein the first common electrode and the second common electrode are insulated from each other; and wherein the pixel electrode is configured to interact respectively with the first common electrode and the second common electrode so as to conduct one or more display operations.
    Type: Application
    Filed: March 19, 2019
    Publication date: December 30, 2021
    Applicants: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Donghui ZHANG, Xiaoye MA, Guodong LIU, Xiaofang GU, Ruifang DU, Huan NI, Zhenyu HAN
  • Publication number: 20210327377
    Abstract: The present application discloses a gate-driving unit circuit. The gate-driving unit circuit includes an input sub-circuit coupled to an input terminal and a pull-up node, and configured to charge a pull-up node to a turn-on voltage level. Additionally, the gate-driving unit circuit includes a pre-pull-down sub-circuit coupled to a pull-down node, a pre-pull-down node, and a reference voltage terminal, and configured to pull down voltage levels at the pull-down node and the pre-pull-down node to a turn-off voltage level before the pull-up node is charged to the turn-on voltage level. Therefore, potential charging delay in the pull-down node caused by a transistor threshold voltage shift is avoided. The gate-driving unit circuit further includes a pull-down sub-circuit, a pull-down control sub-circuit, a noise-reduction sub-circuit, a reset sub-circuit, and an output sub-circuit to couple with the input sub-circuit and the pre-pull-down sub-circuit to output a gate-driving signal.
    Type: Application
    Filed: June 7, 2018
    Publication date: October 21, 2021
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ruifang DU, Zijun CAO, Xiaoye MA