Patents by Inventor Huanxi Zhang

Huanxi Zhang 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: 12361851
    Abstract: The present disclosure discloses a gate drive circuit and a display panel. The gate drive circuit includes a plurality of shift registers. An Nth-stage shift register of the plurality of shift registers includes a stage transmission signal selection module, a pull-up control module, a first filter module, a second filter module, a first output module, a first inverting module, an isolation module, or a second output module.
    Type: Grant
    Filed: November 26, 2023
    Date of Patent: July 15, 2025
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Huanxi Zhang
  • Publication number: 20250218355
    Abstract: The present application discloses a gate drive circuit and a display panel. The gate drive circuit includes a plurality of cascaded gate drive units. Each of the gate drive units includes a stage transmission signal selection circuit, a pull-up control circuit, a pulse number reduction circuit, a first inversion circuit, a first output stage and a second output stage, and can output a second gate control signal with a greater number of pulses and a first gate control signal with a less number of pulses.
    Type: Application
    Filed: March 19, 2025
    Publication date: July 3, 2025
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Huanxi ZHANG
  • Publication number: 20250209979
    Abstract: A gate drive unit and a display device in which a plurality of cascaded gate drive circuits are electrically connected to a frequency-division control line configured to transmit a frequency-division control signal, so that a frequency-division control module in each gate drive circuit controls signal transmission between a first power supply terminal and a first node or a second node according to the frequency-division control signal, thereby controlling level states of gate control signals outputted by a first output module and a second output module.
    Type: Application
    Filed: December 29, 2023
    Publication date: June 26, 2025
    Inventor: Huanxi ZHANG
  • Publication number: 20250204178
    Abstract: The present disclosure provides display panels and display devices. In the display panel, the through holes are designed, so that when the position of the through holes is offset, an overlapping area of any clock signal line and the through holes remains unchanged, and the overlapping area of each clock signal line and the through holes is the same, so that the parasitic capacitance of each clock signal line is similar or even equal, avoiding different signal delays of adjacent clock signal lines, and avoiding signal delay changes caused by impedance changes of the clock signal lines, so that the display panel can display normally.
    Type: Application
    Filed: December 20, 2023
    Publication date: June 19, 2025
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Fangjie LI, Huanxi ZHANG
  • Publication number: 20250191520
    Abstract: A gate driving circuit includes an input subcircuit, an output subcircuit and a voltage stabilizing subcircuit. The input subcircuit is configured to receive a start control signal and control a voltage of a second node. The output subcircuit is configured to output a gate driving signal according to a potential of the second node. The voltage stabilizing subcircuit is electrically connected to a first power line, a second power line and the second node, and is configured to transmit a voltage on the first power line or a voltage on the second power line to the second node in a low power consumption mode of the gate driving circuit.
    Type: Application
    Filed: February 21, 2025
    Publication date: June 12, 2025
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Huanxi ZHANG
  • Patent number: 12327527
    Abstract: The present application provides a gate driver unit and a display panel, in which at least one of a first node control module and an output control module in a gate driver circuit at present stage is electrically connected to a second node of a gate drive circuit at a preceding stage, so as to ameliorate a problem that a voltage drop of a first gate control signal output by the gate drive circuit is large.
    Type: Grant
    Filed: November 14, 2023
    Date of Patent: June 10, 2025
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Huanxi Zhang
  • Publication number: 20250182688
    Abstract: A pixel driving circuit and a display panel may be provided. The pixel driving circuit may include: a driving transistor set to an N-type oxide semiconductor thin film transistor.
    Type: Application
    Filed: September 17, 2024
    Publication date: June 5, 2025
    Inventor: Huanxi ZHANG
  • Publication number: 20250157409
    Abstract: The present application provides a gate driver unit and a display panel, in which at least one of a first node control module and an output control module in a gate driver circuit at present stage is electrically connected to a second node of a gate drive circuit at a preceding stage, so as to ameliorate a problem that a voltage drop of a first gate control signal output by the gate drive circuit is large.
    Type: Application
    Filed: November 14, 2023
    Publication date: May 15, 2025
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Huanxi ZHANG
  • Patent number: 12293701
    Abstract: A display panel and a display device are provided by the present application. A first part and a second part of part of a first scanning signal line are connected through a third part, and/or a fourth part and a fifth part of part of the first scanning signal line are connected through a sixth part, so that a load of a hole-digging area is similar or even consistent with a load of other areas, thereby improving a display effect.
    Type: Grant
    Filed: May 12, 2023
    Date of Patent: May 6, 2025
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Huanxi Zhang, Cheng Wang
  • Publication number: 20250124857
    Abstract: The present disclosure provides a gate driving circuit and a display panel. by the control of one of the fourth node, the output end of the second output module, and the first node of the shift register of the next stage, the voltage regulating module may utilize a low voltage signal to stabilize or reduce the gate voltage of the second transistor, so that the second transistor is stable or preferably in the cut-off state to reduce the leakage current. In this way, voltage level of the second gate driving signal can be maintained at a high voltage level or a pulse amplitude.
    Type: Application
    Filed: November 27, 2024
    Publication date: April 17, 2025
    Inventor: Huanxi ZHANG
  • Publication number: 20250124875
    Abstract: The present application discloses a display panel including a quantity N of driver units that are cascaded. The quantity N of the driver units are arranged along a first direction. Each of the driver units includes a first output module, a signal generation module, and a second output module disposed along a second direction. The first output module is configured to output a first gate electrode driving signal. The second output module is configured to output a second gate electrode driving signal. The first gate electrode driving signal is different from the second gate electrode driving signal. The first output module includes a first buffer unit and a second buffer unit stacked on each other along a third direction. The present application stacks two buffer units in the first output module, which reduce a width of a frame occupied by the first output module while guaranteeing performance of transistors.
    Type: Application
    Filed: December 1, 2023
    Publication date: April 17, 2025
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Huanxi ZHANG, Chao DAI
  • Patent number: 12277895
    Abstract: The present application discloses a gate drive circuit and a display panel. The gate drive circuit includes a plurality of cascaded gate drive units. Each of the gate drive units includes a stage transmission signal selection circuit, a pull-up control circuit, a pulse number reduction circuit, a first inversion circuit, a first output stage and a second output stage, and can output a second gate control signal with a greater number of pulses and a first gate control signal with a less number of pulses.
    Type: Grant
    Filed: April 21, 2023
    Date of Patent: April 15, 2025
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Huanxi Zhang
  • Publication number: 20250118240
    Abstract: This application discloses a gate driving circuit and a display panel. The gate driving circuit includes a plurality of stage circuits. The stage circuit includes an input module, a first output module, a second output module, a voltage stabilizing module, and a first driving control module. The voltage stabilizing module includes a first transistor whose gate receives a clock signal. When the gate driving circuit operates in a low power consumption mode, the clock signal turns on the first transistor to reduce a power consumption of the gate driving circuit by reducing a frequency of the clock signal.
    Type: Application
    Filed: November 29, 2023
    Publication date: April 10, 2025
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Huanxi ZHANG
  • Patent number: 12272291
    Abstract: This application discloses a gate driving circuit and a display panel. The gate driving circuit includes a plurality of stage circuits. The stage circuit includes an input module, a first output module, a second output module, a voltage stabilizing module, and a first driving control module. The voltage stabilizing module includes a first transistor whose gate receives a clock signal. When the gate driving circuit operates in a low power consumption mode, the clock signal turns on the first transistor to reduce a power consumption of the gate driving circuit by reducing a frequency of the clock signal.
    Type: Grant
    Filed: November 29, 2023
    Date of Patent: April 8, 2025
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Huanxi Zhang
  • Patent number: 12260824
    Abstract: The present application provides a pixel driving circuit and a display panel. The pixel driving circuit includes a driving transistor and a data writing module. a driving timing of the pixel driving circuit includes a writing frame including a first data writing phase and a second data writing phase in sequence, the data voltage includes an active data voltage and a first data compensation voltage, the data writing module is configured to write the first data compensation voltage into the gate, the first electrode, and the second electrode of the driving transistor in the first data writing phase, and to write the active data voltage into the gate, the first electrode, and the second electrode of the driving transistor in the second data writing phase.
    Type: Grant
    Filed: October 25, 2023
    Date of Patent: March 25, 2025
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Huanxi Zhang, Zhilin Yang, Shuyuan Zhang
  • Patent number: 12260809
    Abstract: The present application provides a display panel and a display device. The display panel includes a display area and a non-display area, the display area including a first display partition and a second display partition arranged in a first direction; where, the display panel further includes: a substrate; a plurality of pixel driving circuits disposed on a side of the substrate and located in the display area; a gate driving circuit disposed on a side of the substrate and located in the non-display area on both sides of the display area in the first direction; a plurality of scanning lines disposed on a side of the substrate, where the gate driving circuit is electrically connected to the pixel driving circuits in the same first direction as corresponding one of the scanning lines via the corresponding scanning line.
    Type: Grant
    Filed: June 29, 2023
    Date of Patent: March 25, 2025
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Huanxi Zhang
  • Publication number: 20250095573
    Abstract: The present disclosure proposes a pixel circuit and a display panel. The pixel circuit includes a driving transistor, a light-emitting device, a feedback transistor, and a feedback capacitor. By coupling the feedback transistor and feedback capacitor between the gate of the driving transistor and the anode of the light-emitting device, the pixel circuit and display panel can make the voltage level of the gate of the driving transistor change correlatively with the voltage level of the anode of the light-emitting device. This can reduce the brightness change of the light-emitting device, and improves the brightness of the light-emitting device.
    Type: Application
    Filed: June 30, 2023
    Publication date: March 20, 2025
    Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Huanxi ZHANG
  • Publication number: 20250054428
    Abstract: The present disclosure discloses a gate drive circuit and a display panel. The gate drive circuit includes a plurality of shift registers. An Nth-stage shift register of the plurality of shift registers includes a stage transmission signal selection module, a pull-up control module, a first filter module, a second filter module, a first output module, a first inverting module, an isolation module, or a second output module.
    Type: Application
    Filed: November 26, 2023
    Publication date: February 13, 2025
    Inventor: Huanxi ZHANG
  • Publication number: 20250056890
    Abstract: The present application provides a display panel and a display terminal. The display panel includes a first metal layer having a plurality of first fan-out segments, and a third metal layer having a plurality of second fan-out segments, where the second fan-out segments extend in the same direction, the first fan-out segments and the second fan-out segments are located in a display area, one end of the first fan-out segment is electrically connected to one of the second fan-out segments.
    Type: Application
    Filed: October 29, 2024
    Publication date: February 13, 2025
    Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Xin WANG, Xiaoxia ZHANG, Huanxi ZHANG
  • Publication number: 20250037641
    Abstract: The present application discloses a display panel, which includes N GOA units disposed along a first direction. Each GOA unit includes a first output module, a signal generation module, and a second output module disposed along a second direction. The first output module is configured to output a first gate driving signal, and the second output module is configured to output a second gate driving signal. The first gate driving signal is different from the second gate driving signal, and a length of the first output module is different from a length of the second output module.
    Type: Application
    Filed: August 18, 2023
    Publication date: January 30, 2025
    Inventor: Huanxi ZHANG