Patents by Inventor Lujiang HUANGFU

Lujiang HUANGFU 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: 12295226
    Abstract: The present disclosure provides a display panel and a method of manufacturing the same and a display device. In a sub-pixel driving circuit of the display panel, a gate electrode of a driving transistor is coupled to a second electrode of a second transistor through a fourth conductive connection portion, and a second electrode plate of a storage capacitor is coupled to a second electrode of a first transistor through a third conductive connection portion, a gate electrode of the first transistor and a gate electrode of the second transistor are respectively coupled to a gate line pattern in the corresponding sub-pixel area; orthographic projection of the gate line pattern on the substrate does not overlap orthographic projection of the third conductive connecting portion on the substrate, and/or does not overlap orthographic projection of the fourth conductive connection portion on the substrate.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: May 6, 2025
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Yipeng Chen, Lujiang Huangfu, Libin Liu
  • Patent number: 12288500
    Abstract: A display substrate, a method for driving the same, a display device, and a high-precision metal mask are provided. The display area includes a first display sub-area in which pixels are distributed at a high density (e.g., a high resolution), and a second display sub-area in which pixels are distributed at a low density (e.g., a low resolution), and a transition display sub-area, with a distribution density of pixels (a resolution) between the distribution density of pixels in the first display sub-area and a distribution density of pixels in the second display sub-area, is arranged between the first display sub-area and the second display sub-area.
    Type: Grant
    Filed: May 23, 2023
    Date of Patent: April 29, 2025
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Zhenzhen Li, Lujiang Huangfu, Shanshan Bai, Kuo Sun
  • Patent number: 12277906
    Abstract: A pixel driving circuit is used for driving a light emitting element, in the pixel driving circuit, a first terminal of the driving sub-circuit being coupled to a power supply line; a compensation sub-circuit is respectively coupled to a scanning line, a control terminal of the driving sub-circuit, and a second terminal of the driving sub-circuit; a first terminal of the coupling sub-circuit being coupled to the control terminal of the driving sub-circuit; a first terminal of the storage sub-circuit being coupled to a second terminal of the coupling sub-circuit; a data writing-in sub-circuit is respectively coupled to a second terminal of the storage sub-circuit, a data line, and a reset line; a first reset sub-circuit is respectively coupled to the reset line, an initialization signal line, the control terminal of the driving sub-circuit, and the second terminal of the coupling sub-circuit.
    Type: Grant
    Filed: April 7, 2022
    Date of Patent: April 15, 2025
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuliang Zhao, Jianchao Zhu, Lujiang Huangfu
  • Patent number: 12268066
    Abstract: The present disclosure provides a display panel, a manufacturing method thereof, and a display device. The initialization signal line layer in the display panel includes an initialization signal line pattern arranged in each sub-pixel area; the anode layer includes a plurality of anode patterns, and an anode spacing area is formed between adjacent anode patterns; the first auxiliary signal line layer is a grid structure, at least part of the first auxiliary signal line layer is located in the anode spacing area, and the initialization signal line pattern in each sub-pixel area is coupled to the first auxiliary signal line layer.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: April 1, 2025
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Yipeng Chen, Lujiang Huangfu, Libin Liu
  • Patent number: 12266309
    Abstract: A display substrate, a driving method thereof, and a display device. The display substrate includes: a first display sub-region including a plurality of first repeating regions each including a first pixel unit and a second pixel unit disposed adjacently, the first pixel unit including a first sub-pixel and a second sub-pixel, and the second pixel unit including a second sub-pixel and a third sub-pixel; and a second display sub-region including a plurality of second repeating regions each including a third pixel unit and a first transparent pixel, the third pixel unit including a first sub-pixel, a second sub-pixel and a third sub-pixel; the first transparent pixel is configured such that a pixel density of the second display sub-region is less than a pixel density of the first display sub-region, and a light transmittance of the second display sub-region is greater than a light transmittance of the first display sub-region.
    Type: Grant
    Filed: January 23, 2023
    Date of Patent: April 1, 2025
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Yanyan Wang, Lujiang Huangfu, Wenjing Tan
  • Publication number: 20250104625
    Abstract: A pixel structure, a display panel and a display device are provided. The pixel structure includes: pixel circuits arranged in rows and columns, the pixel circuits including a first type and a second type of pixel circuits; a data line electrically connected to the pixel circuits, and used for providing a data voltage to the pixel circuit; the pixel circuits in two adjacent rows electrically connected to at least one data line are the first and second types of pixel circuits; light-emitting elements, including a first and a second light-emitting elements electrically connected to the first type and the second type of pixel circuits respectively; a display brightness of the first light-emitting element increases as the data voltage provided to the first type of pixel circuit increases; a display brightness of the second light-emitting element decreases as data voltage provided to the second type of pixel circuit increases.
    Type: Application
    Filed: April 25, 2023
    Publication date: March 27, 2025
    Applicants: Beijing BOE Technology Development Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tuo SUN, Lujiang HUANGFU, Xuliang ZHAO
  • Publication number: 20250098423
    Abstract: An organic light emitting diode display substrate, comprises: a base substrate, and a first data line, a driving thin film transistor and an energy storage capacitor, wherein the energy storage capacitor comprises a first capacitor plate and a second capacitor plate disposed opposite to each other, and the second capacitor plate is electrically connected to a gate of the driving thin film transistor, in a direction away from the base substrate, the first capacitor plate is disposed between the first data line and the second capacitor plate. The display substrate further comprises a shielding portion. The shielding portion is between the second capacitor plate and the first data line in a direction perpendicular to the base substrate, and the organic light emitting diode display substrate further comprises a first thin film transistor and a second thin film transistor.
    Type: Application
    Filed: November 29, 2024
    Publication date: March 20, 2025
    Inventors: Yipeng CHEN, Li WANG, Lujiang HUANGFU
  • Publication number: 20250095535
    Abstract: The present disclosure relates to an array substrate and a display device. The array substrate includes a plurality of pixel units arranged in an array, each of the pixel units including a plurality of sub-pixels. The array substrate includes: a plurality of power lines which are arranged in a conductive layer on a base substrate, are arranged at intervals along a first direction and extend along a second direction, and are used for providing power signals to the sub-pixels; and a plurality of power leads which are arranged in another conductive layer, are arranged at intervals along the second direction and extend along the first direction. Projections of at least one of the power lines and at least one of the power leads on the base substrate intersect, and the projections of the power lines and the power leads on the base substrate form a grid-like structure.
    Type: Application
    Filed: November 27, 2024
    Publication date: March 20, 2025
    Inventors: Long HAN, Libin Liu, Lujiang Huangfu
  • Publication number: 20250087150
    Abstract: A pixel circuit, a pixel driving method, and a display device.
    Type: Application
    Filed: February 23, 2023
    Publication date: March 13, 2025
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lujiang HUANGFU, Tuo SUN, Jianchao ZHU, Li WANG, Yu FENG
  • Publication number: 20250076552
    Abstract: A display substrate and a display device are provided. The display substrate includes a plurality of repeat units. Each of the plurality of repeat units includes one first-color sub-pixel, one second-color sub-pixel pair and one third-color sub-pixel which are arranged in a first direction, the second-color sub-pixel pair includes two second-color sub-pixels arranging in a second direction. Connecting lines of centers of orthographic projections of light-emitting regions of four second-color sub-pixels on the base substrate form a first trapezoid, and at least one edge of the first trapezoid is located outside orthographic projections of light-emitting regions of respective sub-pixels on the base substrate.
    Type: Application
    Filed: November 18, 2024
    Publication date: March 6, 2025
    Applicants: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Fengli JI, Chang LUO, Jianpeng WU, Lujiang HUANGFU
  • Patent number: 12236867
    Abstract: A pixel driving circuit is provided. The pixel driving circuit includes a storage capacitor (Cst) having a first capacitor electrode (Ce1) and a second capacitor electrode (Ce2); a driving transistor (Td) configured to generate a driving current; and a switch (SW) configured to control connection or disconnection between a gate electrode of the driving transistor (Td) and the first capacitor electrode (Ce1).
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: February 25, 2025
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Lujiang Huangfu, Li Wang, Jianchao Zhu, Libin Liu, Yu Feng
  • Patent number: 12232349
    Abstract: The present disclosure relates to a display device, which includes a curved cover plate, an optical adhesive layer, and a display module that are sequentially disposed in a thickness direction thereof. The display module includes a curved surface region, the curved surface region being curved in at least two intersecting directions to form a spherical surface; the curved surface region comprises a first sub-area and a second sub-area, the second sub-area is located on a side of the first sub-area away from a center of curvature of the spherical surface; the second sub-area is wavy in the thickness direction, the wavy second sub-area is composed of a plurality of arc-shaped structures, and protruding directions of adjacent arc-shaped structures are opposite to each other; and the optical adhesive layer is completely attached to each of the arc-shaped structures.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: February 18, 2025
    Assignee: BOE TECHNOLOGY GROUP CO. , LTD.
    Inventors: Pinfan Wang, Chenyu Chen, Lujiang Huangfu, Fangxu Cao, Yucheng Chan
  • Patent number: 12198599
    Abstract: The present disclosure relates to an array substrate and a display device. The array substrate includes a plurality of pixel units arranged in an array, each of the pixel units including a plurality of sub-pixels. The array substrate includes: a plurality of power lines which are arranged in a conductive layer on a base substrate, are arranged at intervals along a first direction and extend along a second direction, and are used for providing power signals to the sub-pixels; and a plurality of power leads which are arranged in another conductive layer, are arranged at intervals along the second direction and extend along the first direction. Projections of at least one of the power lines and at least one of the power leads on the base substrate intersect, and the projections of the power lines and the power leads on the base substrate form a grid-like structure.
    Type: Grant
    Filed: October 26, 2023
    Date of Patent: January 14, 2025
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Long Han, Libin Liu, Lujiang Huangfu
  • Patent number: 12196988
    Abstract: A display substrate and a display device are provided. The display substrate includes a plurality of repeat units. Each of the plurality of repeat units includes one first-color sub-pixel, one second-color sub-pixel pair and one third-color sub-pixel which are arranged in a first direction, the second-color sub-pixel pair includes two second-color sub-pixels arranging in a second direction. Connecting lines of centers of orthographic projections of light-emitting regions of four second-color sub-pixels on the base substrate form a first trapezoid, and at least one edge of the first trapezoid is located outside orthographic projections of light-emitting regions of respective sub-pixels on the base substrate.
    Type: Grant
    Filed: February 9, 2024
    Date of Patent: January 14, 2025
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Fengli Ji, Chang Luo, Jianpeng Wu, Lujiang Huangfu
  • Patent number: 12178082
    Abstract: An organic light emitting diode display substrate, comprises: a base substrate, and a first data line, a driving thin film transistor and an energy storage capacitor, wherein the energy storage capacitor comprises a first capacitor plate and a second capacitor plate disposed opposite to each other, and the second capacitor plate is electrically connected to a gate of the driving thin film transistor, in a direction away from the base substrate, the first capacitor plate is disposed between the first data line and the second capacitor plate. The display substrate further comprises a shielding portion. The shielding portion is between the second capacitor plate and the first data line in a direction perpendicular to the base substrate, and an orthographic projection of the shielding portion on the base substrate at least partially overlap an orthographic projection of the first data line on the base substrate.
    Type: Grant
    Filed: September 26, 2023
    Date of Patent: December 24, 2024
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Yipeng Chen, Li Wang, Lujiang Huangfu
  • Patent number: 12165561
    Abstract: A display substrate, a method for driving the same, a display device, and a high-precision metal mask are provided. The display area includes a first display sub-area in which pixels are distributed at a high density (e.g., a high resolution), and a second display sub-area in which pixels are distributed at a low density (e.g., a low resolution), and a transition display sub-area, with a distribution density of pixels (a resolution) between the distribution density of pixels in the first display sub-area and a distribution density of pixels in the second display sub-area, is arranged between the first display sub-area and the second display sub-area.
    Type: Grant
    Filed: December 26, 2023
    Date of Patent: December 10, 2024
    Assignee: BOE Technology Group Co., Ltd
    Inventors: Zhenzhen Li, Lujiang Huangfu, Shanshan Bai, Kuo Sun
  • Publication number: 20240386847
    Abstract: A display panel and a display device. The display panel includes a pixel driving circuit, and the pixel driving circuit includes a drive transistor, a first capacitor, a second capacitor, a first transistor, a fifth transistor. A first electrode of the drive transistor is connected to a first power line. A first electrode of the first capacitor is connected to a gate of the drive transistor. A first electrode of the second capacitor is connected to a second electrode of the first capacitor. A first electrode of the first transistor is connected to a data line, and a second electrode is connected to a second electrode of the second capacitor. A first electrode of the fifth transistor is connected to the second electrode of the first capacitor and a second electrode is connected to a stabilized power supply terminal.
    Type: Application
    Filed: April 7, 2022
    Publication date: November 21, 2024
    Inventors: Hao ZHANG, Lujiang HUANGFU
  • Publication number: 20240363071
    Abstract: A pixel driving circuit is used for driving a light emitting element, in the pixel driving circuit, a first terminal of the driving sub-circuit being coupled to a power supply line; a compensation sub-circuit is respectively coupled to a scanning line, a control terminal of the driving sub-circuit, and a second terminal of the driving sub-circuit; a first terminal of the coupling sub-circuit being coupled to the control terminal of the driving sub-circuit; a first terminal of the storage sub-circuit being coupled to a second terminal of the coupling sub-circuit; a data writing-in sub-circuit is respectively coupled to a second terminal of the storage sub-circuit, a data line, and a reset line; a first reset sub-circuit is respectively coupled to the reset line, an initialization signal line, the control terminal of the driving sub-circuit, and the second terminal of the coupling sub-circuit.
    Type: Application
    Filed: April 7, 2022
    Publication date: October 31, 2024
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuliang ZHAO, Jianchao ZHU, Lujiang HUANGFU
  • Publication number: 20240341150
    Abstract: A display substrate including a first display area including a plurality of first sub-pixels, a plurality of second sub-pixels and a plurality of third sub-pixels, wherein the display substrate includes a plurality of first pixel groups each of which includes two third sub-pixels, one first sub-pixel and one second sub-pixel, the two third sub-pixels are arranged adjacent to each other along a first direction, the one first sub-pixel and the one second sub-pixel are adjacent to at least one of the two third sub-pixels, located on both sides of a straight line passing centers of the two third sub-pixels, and arranged along a second direction different from the first direction; a size of the first sub-pixel and the second sub-pixel in the second direction is smaller than a size of the first sub-pixel and the second sub-pixel in the first direction, respectively.
    Type: Application
    Filed: June 19, 2024
    Publication date: October 10, 2024
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lujiang HUANGFU, Xiaodan JIN, Yinan LIANG, Zhenzhen LI, Wenjing TAN, Libin LIU, Qian YANG, Hongli WANG
  • Publication number: 20240324370
    Abstract: A display panel, a method for manufacturing the display panel and a display device are provided. The display panel includes a base, a functional film layer, and a plurality of first light-emitting elements. The functional film layer includes a power source signal line layer, a data line layer and a compensation functional layer, the power source signal line layer includes a power source signal line pattern arranged at each subpixel region, the data line layer includes a data line pattern arranged at each subpixel region, and the compensation functional layer includes a compensation functional pattern arranged at at least one subpixel region. The first light-emitting element includes a first anode, a first light-emitting pattern and a first cathode sequentially laminated.
    Type: Application
    Filed: June 5, 2024
    Publication date: September 26, 2024
    Inventors: Tingliang LIU, Huijuan YANG, Yi ZHANG, Sangwon LEE, Yu WANG, Lujiang HUANGFU