Patents by Inventor Rongrong Li

Rongrong Li 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: 12293699
    Abstract: Disclosed are a driving substrate and a display panel. The driving substrate is configured to drive a light-emitting unit to emit light and includes a base including a display region, multiple rows of scan lines and multiple data lines arranged on the base, and a scan driving circuit. Multiple pixel regions are defined by the multiple rows of scan lines and the multiple data lines crossing each other longitudinally and horizontally. The pixel regions are located in the display region. Row directions of the multiple pixel regions are substantially parallel to the scan lines. The scan driving circuit is arranged in the display region of the base and includes multiple scan driving units which are cascaded. A same scan driving unit is arranged in pixel regions in at least two rows among the plurality of pixel regions and capable of outputting at least one row of gate scanning signal.
    Type: Grant
    Filed: December 9, 2022
    Date of Patent: May 6, 2025
    Assignee: HKC CORPORATION LIMITED
    Inventors: Zeyao Li, Rongrong Li
  • Patent number: 12283216
    Abstract: A driving method of a display device and a display device are disclosed. The display device includes multiple scan lines, multiple data lines, and multiple LED lights driven by the multiple scan lines and data lines. The multiple LED lights are arranged in multiple rows and columns. An anode of each LED is connected to the respective scan line. A cathode of each LED is connected to the respective data line. The driving method includes: obtaining a compensated display grayscale corresponding to an LED in an instant row based on a display grayscale of an LED in the previous row, a display grayscale of the LED in the instant row, and a display grayscale compensation table; obtaining corresponding driving parameters according to the compensated display grayscale corresponding to the LED in the instant row; and controlling the LED in the instant row to display according to the driving parameters.
    Type: Grant
    Filed: July 18, 2023
    Date of Patent: April 22, 2025
    Assignee: HKC CORPORATION LIMITED
    Inventors: Mancheng Zhou, Rongrong Li
  • Patent number: 12259619
    Abstract: The present disclosure provides a display device and a manufacturing method thereof. The display device includes a display module and a function module. The display module includes a first substrate and a plurality of light emitting units. The plurality of light emitting units are located on a side of the first substrate. A light emitting direction of the light emitting units are oriented towards the first substrate. The function module is located on a surface of the first substrate away from the light emitting units. The function module and the light emitting units share the first substrate. A surface of the function module close to the first substrate is in direct contact with the surface of the first substrate away from the light emitting units.
    Type: Grant
    Filed: June 16, 2023
    Date of Patent: March 25, 2025
    Assignee: HKC CORPORATION LIMITED
    Inventors: Hao Huang, Rongrong Li
  • Patent number: 12250837
    Abstract: A pixel structure includes: a gate electrode disposed on a base substrate; a gate insulation layer covering the gate electrode; a source electrode, an active region, a drain electrode, a first doped region and a secondary electrode metal layer disposed on an upper surface of the gate insulation layer sequentially; two second doped regions at two ends of an upper surface of the active region; and a passivation layer covering source electrode, a portion of the active region exposed to the second doped regions, the second doped regions, the drain electrode, the first doped region and the secondary electrode metal layer. The passivation layer is provided with a primary pixel electrode and a secondary pixel electrode disposed thereon, the primary pixel electrode is connected to the drain electrode, and the secondary pixel electrode is connected to the secondary electrode metal layer.
    Type: Grant
    Filed: December 13, 2022
    Date of Patent: March 11, 2025
    Assignee: HKC CORPORATION LIMITED
    Inventors: Yang Pu, Rongrong Li
  • Patent number: 12230205
    Abstract: A pixel drive circuit, which includes a data input circuit, a reset compensation circuit, a first switch circuit, a second switch circuit, a third switch circuit, an energy storage circuit and a light-emitting control circuit. The data input circuit is in electrical connection with a control end of the light-emitting control circuit via the energy storage circuit. The reset compensation circuit is in electrical connection with an output of the light-emitting control circuit. The first switch circuit is connected between an output of the data input circuit and an output of the reset compensation circuit. The second switch circuit is connected between an input of the light-emitting control circuit and a first power supply. The third switching circuit is connected between the control end and the input of the light-emitting control circuit. The output of the light-emitting control circuit is in electrical connection with a second power supply.
    Type: Grant
    Filed: July 14, 2023
    Date of Patent: February 18, 2025
    Assignee: HKC CORPORATION LIMITED
    Inventors: Xin Yuan, Xiufeng Zhou, Rongrong Li
  • Patent number: 12230639
    Abstract: The present application relates to an array substrate and a preparation method thereof, and a display device; wherein the array substrate comprises a substrate and a plurality of sub-pixels distributed in an array on the substrate, the sub-pixels comprising M oxide thin film transistors, each oxide thin film transistor comprising a modulation electrode, a gate electrode, a source electrode and a drain electrode arranged in a stack, wherein the modulation electrodes of the M oxide thin film transistors are electrically connected to each other as a modulation layer, and the modulation layer is electrically connected to the gate electrode through N first vias, wherein M and N are both integers, and N<M.
    Type: Grant
    Filed: October 31, 2023
    Date of Patent: February 18, 2025
    Assignee: HKC CORPORATION LIMITED
    Inventors: Xin Yuan, Xiufeng Zhou, Rongrong Li
  • Publication number: 20250056997
    Abstract: This application discloses a display panel, a display device, and a method for manufacturing the display panel. A substrate, an anode, a pixel defining layer, a light-emitting layer, and a cathode are arranged in sequence. The cathode covers the light-emitting layer and the pixel defining layer. The filter layer is disposed on a side of the cathode facing away from the substrate. The second light-emitting region corresponds to the blue color filter. The second light-emitting region includes a blue light-emitting layer made of a blue light emitting material.
    Type: Application
    Filed: December 28, 2022
    Publication date: February 13, 2025
    Inventors: Shangcao CAO, Kerong WU, Rongrong LI
  • Patent number: 12191315
    Abstract: An array substrate and a method for manufacturing the same, and a display panel are provided. The array substrate includes a base substrate, gate lines, data lines, and multiple pixel units. The pixel unit includes a pixel electrode, a drive circuit, and a sharing electrode. The pixel electrode is electrically connected to the drive circuit. The drive circuit includes a first thin-film transistor, a second thin-film transistor, and a third thin-film transistor. A source of the third thin-film transistor is connected to a drain of the second thin-film transistor. A drain of the third thin-film transistor is connected to the sharing electrode. The sharing electrode includes a first sharing electrode and a second sharing electrode electrically connected to the first sharing electrode. The projection of the first sharing electrode on the base substrate at least partially overlaps the projection of the pixel electrode on the base substrate.
    Type: Grant
    Filed: June 28, 2023
    Date of Patent: January 7, 2025
    Assignee: HKC CORPORATION LIMITED
    Inventors: Shasha Li, Rongrong Li
  • Patent number: 12178929
    Abstract: Provided are a display module and an electronic device. The display module includes a display panel and a backlight module stacked with the display panel. The backlight module includes a light-emitting member, a light-guide member, and a back plate. The light-emitting member is configured to emit visible light. The light-guide member is disposed adjacent to the light-emitting member and configured to guide the visible light to the display panel. The back plate is configured to accommodate the light-emitting member and the light-guide member and defines a through-hole. The display module further includes a disinfection assembly. The disinfection assembly is at least partially accommodated in the through-hole or disposed at one side of the back plate away from the display panel, the disinfection assembly is configured to emit UV rays, the UV rays irradiate the display panel via the through-hole, and the disinfection assembly is detachably connected to the back plate.
    Type: Grant
    Filed: October 31, 2023
    Date of Patent: December 31, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Fei Luo, Rongrong Li
  • Patent number: 12181762
    Abstract: A display panel and a display screen are provided in the disclosure. The display panel includes a transmission unit and a display unit electrically coupled with the transmission unit. The transmission unit is configured to transmit a driving signal to the display unit. The transmission unit includes a first wiring layer, a second wiring layer, and a dielectric layer. The dielectric layer is located between the first wiring layer and the second wiring layer. The first wiring layer is provided with first wires. The second wiring layer is provided with second wires. The first wires have first parts. Projections of the first parts on the dielectric layer overlap projections of the second wires on the dielectric layer. The first wires are electrically coupled with the display unit via the second wires. The first parts define at least one first space.
    Type: Grant
    Filed: December 28, 2022
    Date of Patent: December 31, 2024
    Assignees: MIANYANG HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITED
    Inventors: Jingjing Hao, Rongrong Li
  • Publication number: 20240402540
    Abstract: A display panel and a display device are disclosed. The display panel includes a first substrate, a second substrate, and a liquid crystal layer disposed therebetween. The first substrate includes a first base and a plurality of pixel units arranged thereon in an array. The pixel units in odd- numbered columns are first pixel units, and those in even-numbered columns are second pixel units. An alignment direction of the first substrate is perpendicular to an extending direction of the column of the pixel units. A liquid crystal molecule corresponding to each first pixel unit defines a first pretilt angle, and that corresponding to each second pixel unit defines a second pretilt angle. An opening direction of the first pretilt angle is consistent with the alignment direction of the first substrate, and an opening direction of the second pretilt angle is opposite to the alignment direction of the first substrate.
    Type: Application
    Filed: August 10, 2024
    Publication date: December 5, 2024
    Inventors: XINGHAO XUE, Rongrong LI
  • Patent number: 12148359
    Abstract: The present disclosure provides a display panel, a driving circuit and a driving method. The driving circuit includes a plurality of sub-pixels arranged in an array, wherein sub-pixels in two adjacent columns are connected to a same detection line for detecting a corresponding driving current of any of the sub-pixels in the two adjacent columns; wherein each driving current is configured to determine a corresponding compensation signal of corresponding two adjacent sub-pixels, for compensating data driving signals of the corresponding two adjacent sub-pixels based on the corresponding compensation signal in a displaying operation.
    Type: Grant
    Filed: December 8, 2022
    Date of Patent: November 19, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Zeyao Li, Rongrong Li
  • Patent number: 12130528
    Abstract: The present application relates to a display panel and a display device. The display panel comprises a first substrate and a second substrate which are oppositely arranged, wherein the first substrate comprises a wiring area and a border glue in a border area, the wiring area comprises a common electrode wire, a gate driving circuit and a clock signal line which are sequentially arranged, conductive particles are arranged in the border glue, the second substrate comprises a common electrode layer, the border glue at least partially overlaps the wiring area, and the common electrode layer is at least partially hollowed out in the border area corresponding to the clock signal line.
    Type: Grant
    Filed: July 6, 2023
    Date of Patent: October 29, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Yuanjie Yang, Rongrong Li
  • Patent number: 12125444
    Abstract: A pixel drive circuit, in which a second voltage-stabilization circuitry is configured that assists in maintaining the potential of the control end of the drive transistor during a transition from a compensation-and-writing phase to the light-emitting phase and in a light-emitting phase. During the transition from the compensation phase to the light-emitting phase, due to a decrease of the voltage output from the first voltage-stabilization circuitry, the node voltage between the first and second voltage-stabilization circuitries will be pulled down first. By providing the second voltage-stabilization circuitry, an influence on the node voltage at the control end of the drive transistor caused due to the voltage variation at the nodes between the two circuitries will be greatly reduced, the leakage current of the two circuitries connected in series is smaller than the leakage current of the one single first voltage-stabilization circuitry in the light-emitting phase.
    Type: Grant
    Filed: December 23, 2022
    Date of Patent: October 22, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Xiufeng Zhou, Xin Yuan, Rongrong Li
  • Publication number: 20240337369
    Abstract: Disclosed are a backlight module, an assembly method of a backlight module and a display. The backlight module includes a backplane, a lamp plate and an optical diaphragm, the backplane includes a bottom cover and an upper frame, the lamp plate is mounted on the bottom cover, the upper frame is detachably connected above the bottom cover, the optical diaphragm is mounted on the upper frame and provided opposite to the lamp plate.
    Type: Application
    Filed: June 14, 2024
    Publication date: October 10, 2024
    Applicant: HKC CORPORATION LIMITED
    Inventors: Qinglin CHEN, Rongrong LI
  • Patent number: 12109431
    Abstract: A display apparatus driving method includes: obtaining, based on a trigger signal, a distance value between the display apparatus and a user that is acquired by a distance detector, determining whether the distance value is within a preset range; and controlling a near-infrared light emitter of the display apparatus to emit near-infrared light, if the distance value is within the preset range, where the near-infrared light is used to heat the skin of the user.
    Type: Grant
    Filed: November 9, 2023
    Date of Patent: October 8, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Qinglin Chen, Rongrong Li
  • Patent number: 12112680
    Abstract: A display panel includes a plurality of sub-pixels, where each sub-pixel is correspondingly provided with a drive circuit. The drive circuit includes a light emitting assembly and a storage capacitor. The power-on method of the display panel includes: acquiring a power-on signal, and generating a first initialization instruction, a second initialization instruction and a display instruction according to the power-on signal; initializing the storage capacitor according to the first initialization instruction; initializing the light emitting assembly according to the second initialization instruction after initializing the storage capacitor, and at least providing preset gray-scale voltages for the light emitting assembly, so as to perform a preheating startup on the light emitting assembly; and controlling the light emitting assembly to display normally according to the display instruction after initializing the light emitting assembly.
    Type: Grant
    Filed: August 10, 2023
    Date of Patent: October 8, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Mancheng Zhou, Yuanping Zhang, Rongrong Li
  • Publication number: 20240316233
    Abstract: A display module and an electronic device are provided. The display module includes a display panel and a backlight module stacked with the display panel. The backlight module includes a back plate, a light-emitting member. The back plate has a bottom wall and a plurality of side walls, the plurality of side walls surround the bottom wall to define an accommodation space. The light-emitting member is accommodated in the accommodation space and carried on the bottom wall, and the light-emitting member is configured to emit visible light. The display module further includes an ultraviolet (UV)-ray emitting assembly. The UV-ray emitting assembly is accommodated in the accommodation space and disposed corresponding to one of plurality of the side walls, and the UV-ray emitting assembly is obliquely disposed with respect to the display panel and configured to emit UV rays to the display panel.
    Type: Application
    Filed: November 15, 2023
    Publication date: September 26, 2024
    Applicant: HKC Corporation Limited
    Inventors: Fei LUO, Rongrong LI
  • Publication number: 20240321167
    Abstract: A display panel includes a plurality of sub-pixels, where each sub-pixel is correspondingly provided with a drive circuit. The drive circuit includes a light emitting assembly and a storage capacitor. The power-on method of the display panel includes: acquiring a power-on signal, and generating a first initialization instruction, a second initialization instruction and a display instruction according to the power-on signal; initializing the storage capacitor according to the first initialization instruction; initializing the light emitting assembly according to the second initialization instruction after initializing the storage capacitor, and at least providing preset gray-scale voltages for the light emitting assembly, so as to perform a preheating startup on the light emitting assembly; and controlling the light emitting assembly to display normally according to the display instruction after initializing the light emitting assembly.
    Type: Application
    Filed: August 10, 2023
    Publication date: September 26, 2024
    Inventors: Mancheng ZHOU, Yuanping ZHANG, Rongrong LI
  • Publication number: 20240316359
    Abstract: A display apparatus driving method includes: obtaining, based on a trigger signal, a distance value between the display apparatus and a user that is acquired by a distance detector; determining whether the distance value is within a preset range; and controlling a near-infrared light emitter of the display apparatus to emit near-infrared light, if the distance value is within the preset range, where the near-infrared light is used to heat the skin of the user.
    Type: Application
    Filed: November 9, 2023
    Publication date: September 26, 2024
    Applicant: HKC Corporation Limited
    Inventors: Qinglin CHEN, Rongrong LI