Patents by Inventor Yuanfu Liu

Yuanfu Liu 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).

  • Patent number: 10797253
    Abstract: A fabrication method and a fabrication assembly for a flexible display substrate are provided. The fabrication assembly for a flexible display substrate includes: a rigid base substrate, including a first engaging structure being on a surface of the rigid base substrate; and a protective film, including a first surface and a second surface opposite to each other, and including a second engaging structure being on the first surface. The second surface of the protective film is configured to be attached to a flexible base substrate; and the rigid base substrate and the protective film are configured to be detachably connected with each other by the first engaging structure and the second engaging structure.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: October 6, 2020
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jianqiang Bi, Ming Hua, Peng Li, Yuanfu Bao, Jinya Feng, Jie Ge, Lei Bai, Xuemin Liu, Zhen Li, Haiyan Yang, Jianguo Xing
  • Publication number: 20200272144
    Abstract: An unmanned aerial system includes a remote controller device and an unmanned aerial vehicle. A user input on the remote controller device indicates a flight command requested by a user. The remote controller device determines a current position and/or orientation of the remote controller device in response to the flight command from the user. The current position and/or orientation is sent to the vehicle. The vehicle responsively determines a desired orientation of the unmanned aerial vehicle as a function of the current position and/or orientation of the remote controller device and operates a lift mechanism to execute a flight operation based on the desired orientation of the unmanned aerial vehicle and the current position of the remote controller device.
    Type: Application
    Filed: December 18, 2019
    Publication date: August 27, 2020
    Inventors: Fan Yang, Shanshan Bu, Guofan Wu, Jin Li, Jiaxin Ma, Jianye Liu, Yuanfu Chen, Tong Zhang
  • Patent number: 10658403
    Abstract: A manufacturing method of a TFT substrate uses a top gate structure and the entire process can be completely done with seven masks. The number of masks used is reduced. The manufacturing process of a TFT substrate is simplified. Product yield can be increased to effectively improve productivity. Heavy and light ion doping can be simultaneously achieved with one single doping operation so that manufacturing cost can be reduced. By subjecting two ends of a semiconductor pattern to heavy ion doping to form a source electrode and a drain electrode, the manufacturing steps can be reduced and the source electrode and the drain electrode so formed do not need to extend through a via hole formed in an interlayer dielectric layer to contact the two ends of the active layer thereby effectively reducing contact resistance and improving product yield. Also provided is a TFT substrate manufactured with the method.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: May 19, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yuanfu Liu
  • Publication number: 20200106030
    Abstract: A fabrication method and a fabrication assembly for a flexible display substrate are provided. The fabrication assembly for a flexible display substrate includes: a rigid base substrate, including a first engaging structure being on a surface of the rigid base substrate; and a protective film, including a first surface and a second surface opposite to each other, and including a second engaging structure being on the first surface. The second surface of the protective film is configured to be attached to a flexible base substrate; and the rigid base substrate and the protective film are configured to be detachably connected with each other by the first engaging structure and the second engaging structure.
    Type: Application
    Filed: June 5, 2019
    Publication date: April 2, 2020
    Inventors: Jianqiang BI, Ming HUA, Peng LI, Yuanfu BAO, Jinya FENG, Jie GE, Lei BAI, Xuemin LIU, Zhen LI, Haiyan YANG, Jianguo XING
  • Patent number: 10601221
    Abstract: An electrostatic protection circuit of a display panel includes a first P-type thin film transistor having a gate connected to a high potential electrostatic output line and a drain connected to a high potential electrostatic output line, a second P-type thin film transistor having a gate connected to a high potential electrostatic output line and a drain connected to a source of the first P-type thin film transistor, and a source connected to the electrostatic signal input line; a first N-type thin film transistor having a gate connected to the low potential electrostatic output line, and a drain connected to the low potential electrostatic output line; a second N-type thin film transistor having a gate connected to the low potential electrostatic output line and a drain connected to the source of the first N-type thin film transistor, and a source connected to the electrostatic signal input line.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: March 24, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Pinquan Xu, Yuanfu Liu
  • Publication number: 20190385549
    Abstract: A method for intercepting pixel leaked voltages of a display panel is disclosed. The method includes following steps: displaying a black frame at a first display area of the display panel and a white frame at a second display area of the display panel at the same time; intercepting a first pixel light spot, wherein the first pixel light spot is caused by the gate of a transistor leaks a gate voltage to a pixel unit coupled to the transistor while voltage leakage exists between the gate and the source of the transistor within the first display area; intercepting a second pixel light spot, wherein the second pixel light spot is caused by the gate of the transistor leaks a source voltage to the pixel unit coupled to the transistor if the voltage leakage exists between the source and the drain of the transistor within the first display area.
    Type: Application
    Filed: January 17, 2018
    Publication date: December 19, 2019
    Inventor: Yuanfu LIU
  • Patent number: 10424607
    Abstract: A manufacturing method of a TFT substrate uses a top gate structure and the entire process can be completely done with seven masks. The number of masks used is reduced. The manufacturing process of a TFT substrate is simplified. Product yield can be increased to effectively improve productivity. Heavy and light ion doping can be simultaneously achieved with one single doping operation so that manufacturing cost can be reduced. By subjecting two ends of a semiconductor pattern to heavy ion doping to form a source electrode and a drain electrode, the manufacturing steps can be reduced and the source electrode and the drain electrode so formed do not need to extend through a via hole formed in an interlayer dielectric layer to contact the two ends of the active layer thereby effectively reducing contact resistance and improving product yield. Also provided is a TFT substrate manufactured with the method.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: September 24, 2019
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yuanfu Liu
  • Patent number: 10365522
    Abstract: A GOA driving panel is disclosed. The GOA driving panel includes an active area and a non-active area arranged at two opposite sides of the active area. The non-active area is provided with a plurality of GOA driving units, and each GOA driving unit is connected with one corresponding scanning line in the active area for outputting a scanning signal to the scanning line. The non-active area is further provided with a plurality of signal waveform delay units, and each signal waveform delay unit is arranged between a GOA driving unit and a corresponding scanning line.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: July 30, 2019
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yuanfu Liu
  • Publication number: 20190229530
    Abstract: An electrostatic protection circuit of a display panel includes a first P-type thin film transistor having a gate connected to a high potential electrostatic output line and a drain connected to a high potential electrostatic output line, a second P-type thin film transistor having a gate connected to a high potential electrostatic output line and a drain connected to a source of the first P-type thin film transistor, and a source connected to the electrostatic signal input line; a first N-type thin film transistor having a gate connected to the low potential electrostatic output line, and a drain connected to the low potential electrostatic output line; a second N-type thin film transistor having a gate connected to the low potential electrostatic output line and a drain connected to the source of the first N-type thin film transistor, and a source connected to the electrostatic signal input line.
    Type: Application
    Filed: November 30, 2017
    Publication date: July 25, 2019
    Inventors: Pinquan XU, Yuanfu LIU
  • Patent number: 10345659
    Abstract: The present disclosure provides an array substrate, the array substrate includes a plurality of array blocks arranged at intervals, wherein each array block includes a plurality of sub-array substrates arranged at intervals, at least one of a periphery of the array substrate, a periphery of the array block, and a periphery of the display area of the sub-array substrate is arranged with an electrostatic protection structure, the electrostatic protection structure is a transparent metal oxide wire, or a metal wire and a transparent conductive metal oxide wire arranged in layers. The existence of the electrostatic protection structure can effectively shield the outside static electricity. The disclosure also provides a liquid crystal display panel adopting the array substrate.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: July 9, 2019
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yuanfu Liu
  • Patent number: 10331001
    Abstract: A manufacturing method of a TFT substrate uses a bottom gate structure and the entire process can be completely done with seven masks. The number of masks used is reduced. The manufacturing process of a TFT substrate is simplified. Product yield and increase productivity are effectively improved. By subjecting two ends of a semiconductor pattern to heavy ion doping to form a source electrode and a drain electrode, the manufacturing steps can be reduced and the source electrode and the drain electrode so formed do not need to extend through a via hole formed in an interlayer dielectric layer to get in connection with the two ends of the active layer so as to effectively reduce contact resistance and improve product yield. Also provided is a TFT substrate manufactured with the method.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: June 25, 2019
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yuanfu Liu
  • Publication number: 20190187500
    Abstract: A TFT substrate includes, stacked in sequence from bottom to top, a backing plate, a gate electrode, a gate insulation layer, an active layer and a source electrode and a drain electrode, a first passivation layer, a planarization layer, a common electrode, a second passivation layer, and a pixel electrode. The source electrode and the drain electrode are respectively located at two sides of the active layer. The active layer includes two lightly-ion-doped semiconductor layers respectively connected with the source and drain electrodes and a channel-zone semiconductor layer located therebetween. The first passivation layer and the planarization layer include a first via formed therein and corresponding to the drain electrode. The second passivation layer has a second via extending through a portion of the second passivation layer inside the first via. The pixel electrode is connected through the second via to the drain electrode.
    Type: Application
    Filed: February 25, 2019
    Publication date: June 20, 2019
    Inventor: Yuanfu Liu
  • Patent number: 10319323
    Abstract: A GOA driving panel is disclosed. The GOA driving panel includes a plurality of GOA driving units and a plurality of output capacitors. Each output capacitor is arranged between a GOA driving unit and a corresponding scanning line so that an output waveform of a row scanning signal output by the GOA driving unit is a delay waveform. In the GOA driving unit, a difference among feedback voltages of pixel units in different active areas of the panel can be effectively reduced, whereby image flicker of the panel can be alleviated, and display quality thereof can be improved.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: June 11, 2019
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yuanfu Liu
  • Publication number: 20190064614
    Abstract: The present disclosure provides an array substrate, the array substrate includes a plurality of array blocks arranged at intervals, wherein each array block includes a plurality of sub-array substrates arranged at intervals, at least one of a periphery of the array substrate, a periphery of the array block, and a periphery of the display area of the sub-array substrate is arranged with an electrostatic protection structure, the electrostatic protection structure is a transparent metal oxide wire, or a metal wire and a transparent conductive metal oxide wire arranged in layers. The existence of the electrostatic protection structure can effectively shield the outside static electricity. The disclosure also provides a liquid crystal display panel adopting the array substrate.
    Type: Application
    Filed: March 9, 2018
    Publication date: February 28, 2019
    Inventor: Yuanfu LIU
  • Publication number: 20190035347
    Abstract: A GOA driving panel is disclosed. The GOA driving panel includes a plurality of GOA driving units and a plurality of output capacitors. Each output capacitor is arranged between a GOA driving unit and a corresponding scanning line so that an output waveform of a row scanning signal output by the GOA driving unit is a delay waveform. In the GOA driving unit, a difference among feedback voltages of pixel units in different active areas of the panel can be effectively reduced, whereby image flicker of the panel can be alleviated, and display quality thereof can be improved.
    Type: Application
    Filed: March 14, 2017
    Publication date: January 31, 2019
    Inventor: Yuanfu LIU
  • Patent number: 10153309
    Abstract: A manufacturing method of a display panel disclosed by the invention includes: providing a substrate, the substrate having a first metal layer disposed thereon, the substrate including a first display region and a first peripheral region, the first metal layer covering the first display region and the first peripheral region; laying a photoresist layer on the first metal layer to form a first half-finished plate; exposing and developing the first half-finished plate to form a second half-finished plate with first and second preset patterns; etching and stripping the second half-finished plate to form a first preset metal wire group on the first display region and form a second preset metal wire group on the first peripheral region. The invention can significantly reduce the occurrence of electrostatic discharge phenomenon during the manufacturing process of a display panel and thus the yield of the display panel can be greatly improved.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: December 11, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Yuanfu Liu
  • Publication number: 20180299718
    Abstract: A GOA driving panel is disclosed. The GOA driving panel includes an active area and a non-active area arranged at two opposite sides of the active area. The non-active area is provided with a plurality of GOA driving units, and each GOA driving unit is connected with one corresponding scanning line in the active area for outputting a scanning signal to the scanning line. The non-active area is further provided with a plurality of signal waveform delay units, and each signal waveform delay unit is arranged between a GOA driving unit and a corresponding scanning line.
    Type: Application
    Filed: March 17, 2017
    Publication date: October 18, 2018
    Inventor: Yuanfu LIU
  • Publication number: 20180286893
    Abstract: A manufacturing method of a TFT substrate uses a top gate structure and the entire process can be completely done with seven masks. The number of masks used is reduced. The manufacturing process of a TFT substrate is simplified. Product yield can be increased to effectively improve productivity. Heavy and light ion doping can be simultaneously achieved with one single doping operation so that manufacturing cost can be reduced. By subjecting two ends of a semiconductor pattern to heavy ion doping to form a source electrode and a drain electrode, the manufacturing steps can be reduced and the source electrode and the drain electrode so formed do not need to extend through a via hole formed in an interlayer dielectric layer to contact the two ends of the active layer thereby effectively reducing contact resistance and improving product yield. Also provided is a TFT substrate manufactured with the method.
    Type: Application
    Filed: June 1, 2018
    Publication date: October 4, 2018
    Inventor: Yuanfu Liu
  • Publication number: 20180224683
    Abstract: A manufacturing method of a TFT substrate uses a bottom gate structure and the entire process can be completely done with seven masks. The number of masks used is reduced. The manufacturing process of a TFT substrate is simplified. Product yield and increase productivity are effectively improved. By subjecting two ends of a semiconductor pattern to heavy ion doping to form a source electrode and a drain electrode, the manufacturing steps can be reduced and the source electrode and the drain electrode so formed do not need to extend through a via hole formed in an interlayer dielectric layer to get in connection with the two ends of the active layer so as to effectively reduce contact resistance and improve product yield. Also provided is a TFT substrate manufactured with the method.
    Type: Application
    Filed: February 24, 2017
    Publication date: August 9, 2018
    Inventor: Yuanfu Liu
  • Publication number: 20180226438
    Abstract: A manufacturing method of a TFT substrate uses a top gate structure and the entire process can be completely done with seven masks. The number of masks used is reduced. The manufacturing process of a TFT substrate is simplified. Product yield can be increased to effectively improve productivity. Heavy and light ion doping can be simultaneously achieved with one single doping operation so that manufacturing cost can be reduced. By subjecting two ends of a semiconductor pattern to heavy ion doping to form a source electrode and a drain electrode, the manufacturing steps can be reduced and the source electrode and the drain electrode so formed do not need to extend through a via hole formed in an interlayer dielectric layer to contact the two ends of the active layer thereby effectively reducing contact resistance and improving product yield. Also provided is a TFT substrate manufactured with the method.
    Type: Application
    Filed: February 24, 2017
    Publication date: August 9, 2018
    Inventor: Yuanfu Liu