Patents by Inventor Daobing HU

Daobing HU 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: 12626637
    Abstract: A pixel driving circuit and a mobile terminal are provided. The pixel driving circuit includes a switch thin film transistor, a storage circuit, and a light driving circuit. The switch thin film transistor receives data signal applied on the data line in response to scan signal applied on the scan line. The storage circuit is charged by the data signal. The light driving circuit emits light in response to the data signal. The light driving circuit includes a driving unit, light-emitting unit, a supply voltage end, a ground end, and a voltage-dividing transistor that is coupled between the driving unit and the ground end.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: May 12, 2026
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Daobing Hu
  • Publication number: 20260032953
    Abstract: An array substrate and a display panel are provided. The array substrate includes a substrate and a first conductive layer, a first insulating layer, a semiconductor layer, and a third conductive layer. The first conductive layer includes a source electrode and a light shielding electrode arranged at intervals. The semiconductor layer includes a channel part and a source contact part. A part of the source contact part is disposed inside the first via hole and connected to the source electrode. The third conductive layer includes a first auxiliary electrode corresponding to the source contact part. The first auxiliary electrode is connected to at least the source contact part located inside the first via hole. An orthographic projection of the source contact part located inside the first via hole on the substrate is within a range of an orthographic projection of the first auxiliary electrode on the substrate.
    Type: Application
    Filed: August 26, 2024
    Publication date: January 29, 2026
    Inventors: Meinan LI, Yuanjun HSU, Daobing HU, Yanrui LIN
  • Patent number: 12488765
    Abstract: The present application provides a splicing display device includes a liquid crystal display screen and an inorganic light emitting diode display screen. A color point coordinate of a color of a light emitted by the liquid crystal display screen in the CIE 1931 XYZ chromaticity diagram is in a first gamut triangle. A color point coordinate of a color of a light emitted by the inorganic light emitting diode display screen in the CIE 1931 XYZ chromaticity diagram is in a second gamut triangle. A gamut boundary of the second gamut triangle surrounds a gamut boundary of the first gamut triangle, and a difference between a NTSC color gamut corresponding to the second gamut triangle and a NTSC color gamut corresponding to the first gamut triangle is less than 30%.
    Type: Grant
    Filed: April 27, 2023
    Date of Patent: December 2, 2025
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jun Zhao, Bin Zhao, Juncheng Xiao, Hongyuan Xu, Shi Tang, Guangmiao Wan, Daobing Hu, Meinan Li, Maoxia Zhu, Yu Liu
  • Patent number: 12471419
    Abstract: A LED display panel includes a substrate, a light source assembly disposed on the substrate, and a light filter layer disposed on the light source assembly. The light filter layer includes a light filter region. The light filter region includes a light-transmitting region and a non-light-transmitting region disposed outside the light-transmitting region. An incident angle of a light emitted by the light source assembly to the light-transmitting region is less than a total reflection critical angle of the light filter layer, and an incident angle of the light emitted by the light source assembly to the non-light-transmitting region is greater than or equal to the total reflection critical angle of the light filter layer. The total reflection critical angle is a critical angle at which the light exits from an upper surface of the light filter layer. A display device includes the LED display panel.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: November 11, 2025
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventor: Daobing Hu
  • Patent number: 12464615
    Abstract: A backlight board, a backlight module, and a display device are provided. The backlight board includes a substrate, a light-emitting unit, and a packaging block. A control circuit, a first power signal line, and a second power signal line are disposed on the substrate. The light-emitting unit includes a plurality of light-emitting devices. A plurality of first control switches are integrated in the packaging block. The plurality of first control switches are integrated, so that a space occupied by the first control switches in general is reduced, thereby improving the space utilization and level of integration of the backlight board.
    Type: Grant
    Filed: July 17, 2024
    Date of Patent: November 4, 2025
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Daobing Hu
  • Publication number: 20250185290
    Abstract: The present disclosure provides a semiconductor device and a method for preparing same. The semiconductor device includes a substrate, a source, a semiconductor layer, a drain, an insulating layer, and a gate. A main body portion of the source and a main body portion of the drain are disposed on different faces. The semiconductor layer is disposed between the source and the drain. The gate is disposed on a side of the semiconductor layer. Therefore, a vertical channel thin film transistor (TFT) is formed. In this way, the mobility of carriers in the TFT and the performance of the semiconductor device are effectively improved.
    Type: Application
    Filed: June 22, 2021
    Publication date: June 5, 2025
    Applicants: Huizhou China Star Optoelectronics Display Co., Ltd., TCL China Star Optoelectronics Technology Co., Ltd.
    Inventor: Daobing HU
  • Patent number: 12217656
    Abstract: Disclosed is a display panel, which adopts two display screens arranged by splicing. The display screen includes a display area and a non-display area on at least one side of the display area. An LED substrate is disposed on the non-display area. The LED substrate includes a substrate and a light emitting device disposed on the substrate. A cover plate is provided on at least two display screens. A groove is provided on one side of the cover plate close to the LED substrate. A side surface of the substrate is disposed opposite to a groove wall of the groove. A part of the groove wall surface corresponding to the side surface of the substrate is a reflection interface.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: February 4, 2025
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Daobing Hu
  • Patent number: 12205539
    Abstract: A pixel driving circuit and a mobile terminal are provided. The pixel driving circuit includes a switch circuit, a storage circuit, and a light driving circuit. The switch circuit receives data signal applied on the data line in response to scan signal applied on the scan line. The storage circuit is charged by the data signal. The light driving circuit emits light in response to the data signal. The light driving circuit includes a driving unit, light-emitting unit, a supply voltage end, a ground end, and a voltage dividing unit that is coupled between the driving unit and the ground end.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: January 21, 2025
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventor: Daobing Hu
  • Patent number: 12199075
    Abstract: A spliced panel is provided. A light-emitting diode substrate is disposed on two adjacent display panels and blocks a gap. A substrate comprises a first surface, a second surface, and a third surface. The first surface and the second surface are disposed opposite to each other. The third surface is connected between the first surface and the second surface. A plurality of light-emitting diodes are disposed on the first surface. The reflective layer is disposed on the third surface. An angle between the third surface and the second surface is greater than or equal to 90°.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: January 14, 2025
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jun Zhao, Juncheng Xiao, Daobing Hu
  • Patent number: 12183292
    Abstract: A backlight driving method and a display panel are provided. The backlight driving method provided by the present application uses pulse width modulation technology to modulate a low-level pulse width of a scan signal. By increasing a low-level pulse width to increase the pulse period, a number of high-level pulses is reduced, thereby reducing a high-level pulse time. Therefore, a time for a TFT to receive a high-level voltage is also reduced, thereby improving a stability of the TFT and also improving a problem of a threshold voltage drift of the TFT.
    Type: Grant
    Filed: April 25, 2021
    Date of Patent: December 31, 2024
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventors: Daobing Hu, Guangmiao Wan, Hang Wang, Xu Wang, Cong Hu, Hongyuan Xu, Woosung Son
  • Publication number: 20240373527
    Abstract: A backlight board, a backlight module, and a display device are provided. The backlight board includes a substrate, a light-emitting unit, and a packaging block. A control circuit, a first power signal line, and a second power signal line are disposed on the substrate. The light-emitting unit includes a plurality of light-emitting devices. A plurality of first control switches are integrated in the packaging block. The plurality of first control switches are integrated, so that a space occupied by the first control switches in general is reduced, thereby improving the space utilization and level of integration of the backlight board.
    Type: Application
    Filed: July 17, 2024
    Publication date: November 7, 2024
    Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Daobing HU
  • Publication number: 20240334665
    Abstract: Embodiment of the present application discloses a substrate and a display panel. In the substrate, a first electrostatic protection structure is correspondingly disposed in a peripheral area, a signal line is connected to the first electrostatic protection structure; a first common line is correspondingly disposed in the peripheral area, the first electrostatic protection structure is connected to the first common line; and a second common line is correspondingly disposed in the peripheral area, and is located on a side of the first common line away from a pixel arrangement area.
    Type: Application
    Filed: August 11, 2021
    Publication date: October 3, 2024
    Inventor: Daobing HU
  • Publication number: 20240282258
    Abstract: A pixel driving circuit and a mobile terminal are provided. The pixel driving circuit includes a switch circuit, a storage circuit, and a light driving circuit. The switch circuit receives data signal applied on the data line in response to scan signal applied on the scan line. The storage circuit is charged by the data signal. The light driving circuit emits light in response to the data signal. The light driving circuit includes a driving unit, light-emitting unit, a supply voltage end, a ground end, and a voltage dividing unit that is coupled between the driving unit and the ground end.
    Type: Application
    Filed: August 10, 2021
    Publication date: August 22, 2024
    Applicant: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventor: Daobing HU
  • Patent number: 12058791
    Abstract: A backlight board, a backlight module, and a display device are provided. The backlight board includes a substrate, a light-emitting unit, and a packaging block. A control circuit, a first power signal line, and a second power signal line are disposed on the substrate. The light-emitting unit includes a plurality of light-emitting devices. A plurality of first control switches are integrated in the packaging block. The plurality of first control switches are integrated, so that a space occupied by the first control switches in general is reduced, thereby improving the space utilization and level of integration of the backlight board.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: August 6, 2024
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Daobing Hu
  • Patent number: 12038646
    Abstract: The present disclosure provides a thin film transistor device, a backlight module, and a display panel. The thin film transistor device includes a source portion, an active layer located on the source portion, a drain portion spaced apart from the source portion, and a conductor portion located on the active layer and extending to the drain portion. According to the present disclosure, the active layer is disposed on the source portion, and the drain portion is electrically connected to the active layer using the conductor portion, so that a current is transmitted from the drain portion to the active layer through the conductor portion.
    Type: Grant
    Filed: May 31, 2021
    Date of Patent: July 16, 2024
    Assignees: Huizhou China Star Optoelectronics Display Co., Ltd., TCL China Star Optoelectronics Technology Co., Ltd.
    Inventor: Daobing Hu
  • Publication number: 20240221604
    Abstract: Disclosed is a display panel, which adopts two display screens arranged by splicing. The display screen includes a display area and a non-display area on at least one side of the display area. An LED substrate is disposed on the non-display area. The LED substrate includes a substrate and a light emitting device disposed on the substrate. A cover plate is provided on at least two display screens. A groove is provided on one side of the cover plate close to the LED substrate. A side surface of the substrate is disposed opposite to a groove wall of the groove. A part of the groove wall surface corresponding to the side surface of the substrate is a reflection interface.
    Type: Application
    Filed: June 13, 2022
    Publication date: July 4, 2024
    Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Daobing Hu
  • Publication number: 20240221696
    Abstract: The present application provides a splicing display device includes a liquid crystal display screen and an inorganic light emitting diode display screen. A color point coordinate of a color of a light emitted by the liquid crystal display screen in the CIE 1931 XYZ chromaticity diagram is in a first gamut triangle. A color point coordinate of a color of a light emitted by the inorganic light emitting diode display screen in the CIE 1931 XYZ chromaticity diagram is in a second gamut triangle. A gamut boundary of the second gamut triangle surrounds a gamut boundary of the first gamut triangle, and a difference between a NTSC color gamut corresponding to the second gamut triangle and a NTSC color gamut corresponding to the first gamut triangle is less than 30%.
    Type: Application
    Filed: April 27, 2023
    Publication date: July 4, 2024
    Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jun ZHAO, Bin ZHAO, Juncheng XIAO, Hongyuan XU, Shi TANG, Guangmiao WAN, Daobing HU, Meinan LI, Maoxia ZHU, Yu LIU
  • Patent number: 12009369
    Abstract: A display panel and a display device are provided. A sub-pixel unit of the display panel includes at least one light-transmitting region, and each light-transmitting region is provided with at least one driving transistor. At least part of a source wiring of the driving transistor is disposed at a boundary of the light-transmitting region and parallel to an extension direction of data signal lines, and a drain wiring is disposed in the light-transmitting region. The light-transmitting region of the sub-pixel unit occupied by the driving transistor is reduced to alleviate a problem of low aperture ratio of a backplane of current display products.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: June 11, 2024
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Daobing Hu
  • Publication number: 20240169889
    Abstract: A pixel driving circuit and a mobile terminal are provided. The pixel driving circuit includes a switch thin film transistor, a storage circuit, and a light driving circuit. The switch thin film transistor receives data signal applied on the data line in response to scan signal applied on the scan line. The storage circuit is charged by the data signal. The light driving circuit emits light in response to the data signal. The light driving circuit includes a driving unit, light-emitting unit, a supply voltage end, a ground end, and a voltage-dividing transistor that is coupled between the driving unit and the ground end.
    Type: Application
    Filed: August 10, 2021
    Publication date: May 23, 2024
    Inventor: Daobing HU
  • Patent number: 11991909
    Abstract: Provided are a display backplane and a mobile terminal. The display backplane includes a plurality of light-emitting units and at least one detection circuit. Each of the light-emitting circuits includes a driving transistor. Each of the detection circuits is electrically connected to source electrodes of the driving transistors in at least two of the light-emitting units, at least for detecting voltages of the source electrodes of the driving transistors in the two corresponding light-emitting unit.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: May 21, 2024
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Daobing Hu