Patents by Inventor Yongqian Li

Yongqian 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).

  • Publication number: 20250151583
    Abstract: Provided are a display panel and a method for manufacturing the same, and a display device. The display panel includes: a base substrate including a display area and a peripheral area; a separator located at the peripheral area and including at least one separation portion, each separation portion including a first and a second separation layer, and the orthographic projection of the first separation layer on the base substrate is within that of the second separation layer; a cathode including: a first cathode portion, and a second cathode spaced apart from the first cathode portion; and an encapsulation layer including a first and a second inorganic layer, and an organic layer located between the first and the second inorganic layer, wherein edges of the orthographic projections of the first inorganic layer, the organic layer, and the second inorganic layer on the base substrate overlap.
    Type: Application
    Filed: January 9, 2025
    Publication date: May 8, 2025
    Inventors: Pan Xu, Zhidong Yuan, Yongqian Li, Can Yuan
  • Publication number: 20250151540
    Abstract: A display substrate and a display device. The display substrate includes a base substrate, and a plurality of pixel units and a plurality of scanning lines on the base substrate. Each pixel unit includes a plurality of sub-pixels and a light shielding layer, the plurality of sub-pixels is arranged in sequence in a first direction, each sub-pixel includes a sub-pixel driving circuitry and a light-emitting element coupled to each other, and the sub-pixel driving circuitry is configured to provide a driving signal to the light-emitting element. At least a part of the light shielding layer is arranged between the sub-pixel driving circuitry and the base substrate. Each scanning line includes at least a part extending in the first direction, is coupled to a corresponding sub-pixel driving circuitry, and is arranged at a same layer as the light shielding layer.
    Type: Application
    Filed: January 8, 2025
    Publication date: May 8, 2025
    Applicants: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yongqian LI, Can YUAN, Xuehuan FENG
  • Patent number: 12293723
    Abstract: A shift register unit, a gate driving circuit, a display device, and a driving method are disclosed. The shift register unit includes a first transmission circuit and a first input-output unit. The first transmission circuit is electrically connected to a blanking pull-up node and a first pull-up node. The first input-output unit includes an output circuit, a first pull-down control circuit, and a first pull-down auxiliary control circuit.
    Type: Grant
    Filed: February 19, 2024
    Date of Patent: May 6, 2025
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20250143074
    Abstract: The present disclosure provides a display substrate, a manufacturing method thereof, and a display device. The display substrate includes a substrate, and a compensation electrode, an auxiliary electrode, a light-emitting functional layer, and a cathode layer arranged on one side of the substrate. The auxiliary electrode is arranged on one side of the compensation electrode away from the substrate, and coupled to the compensation electrode. A first notch is formed in a side surface of the auxiliary electrode, and at least a part of the first notch extends in a direction parallel to the substrate. The light-emitting functional layer is arranged on one side of the auxiliary electrode away from the substrate, and interrupted at the first notch. The cathode layer is arranged on one side of the light-emitting functional layer away from the substrate, and coupled to the auxiliary electrode at the first notch.
    Type: Application
    Filed: January 2, 2025
    Publication date: May 1, 2025
    Inventors: Can YUAN, Yongqian LI, Bin ZHOU, Ning LIU, Zhidong YUAN
  • Publication number: 20250140182
    Abstract: A display panel includes a first pixel driving circuit and a second pixel driving circuit. A data writing transistor and a driving transistor in the first pixel driving circuit, a driving transistor and a data writing transistor in the second pixel driving circuit are sequentially arranged. In the first pixel driving circuit, a first electrode plate of a capacitor is coupled to the driving transistor at a first coupling position and coupled to a first light-emitting device at a second coupling position located at a side of the first coupling position away from the data writing transistor. In the second pixel driving circuit, a first electrode plate of a capacitor is coupled to the driving transistor at a third coupling position and coupled to a second light-emitting device at a fourth coupling position located between the third coupling position and the data writing transistor.
    Type: Application
    Filed: June 1, 2022
    Publication date: May 1, 2025
    Applicants: Hefei BOE Joint Technology Co.,Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong YUAN, Yongqian LI, Can YUAN, Liu WU
  • Publication number: 20250131879
    Abstract: Provided are a display panel, a driving method therefor and a display device. The display panel includes pixel driving circuits and a first gate driving circuit. The pixel driving circuit includes a driving circuit connected to first to third nodes for inputting a driving current to the third node through the second node, and a first switching unit having a first terminal connected to the third node and a second terminal connected to a sensing signal terminal for electrically connecting, in response to a signal at a control terminal thereof, the third node and sensing signal terminal. The first gate driving circuit includes a first output terminal corresponding to the pixel driving circuit and connected to the control terminal. The first output terminal outputs an active level pulse during data writing stage and black frame insertion stage of a driving cycle of the pixel driving circuit corresponding thereto.
    Type: Application
    Filed: March 29, 2022
    Publication date: April 24, 2025
    Applicants: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yongqian LI, Xuehuan FENG
  • Patent number: 12283240
    Abstract: A light-emitting control circuit includes: a first detection control unit configured to transmit a first voltage signal to the first node under control of a detection control signal and a first clock signal; a first light-emitting output unit configured to transmit the first voltage signal to a first output signal terminal under control of a voltage of the first node; a second detection control unit configured to transmit the first voltage signal to a second node under control of the detection control signal and a second clock signal; and a second light-emitting output unit configured to transmit the first voltage signal to a second output signal terminal under control of a voltage of the second node.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: April 22, 2025
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO. , LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong Yuan, Yongqian Li, Can Yuan
  • Publication number: 20250124841
    Abstract: A driving circuit includes a pull-up node control circuit, a pull-down node control circuit and an output circuit; the pull-up node control circuit controls a potential of the pull-up node under the control of an input signal and a reset signal; the output circuit controls the output terminal to output a signal under the control of the potential of the pull-up node and the potential of the pull-down node; a channel length of at least one transistor among at least some transistors included in the output circuit, at least some transistors whose gate electrodes are electrically connected to the input terminal included in the pull-up node control circuit, and at least some transistors whose gate electrodes are electrically connected to the reset terminal included in the pull-up node control circuit is greater than a channel length of another transistor included in the driving circuit.
    Type: Application
    Filed: March 31, 2023
    Publication date: April 17, 2025
    Inventors: Can YUAN, Yongqian LI, Miao LIU, Dandan ZHOU, Cheng XU
  • Publication number: 20250124877
    Abstract: A shift register is provided and includes a display input reset circuit, an inverter circuit, at least one output circuit and a first detection circuit; the display input reset circuit, the inverter circuit and the output circuit are connected to a pull-up node; the inverter circuit and the at least one output circuit are connected to a pull-down node; the first detection circuit is connected to a signal acquisition point, an acquisition control terminal, and a first signal detection line, and configured to acquire a voltage at the signal acquisition point in response to a signal from the acquisition control terminal and output a detection voltage corresponding to the acquired voltage to the first signal detection line, an external first chip adjusts an active level voltage from the third power supply terminal according to the detection voltage; the signal acquisition point includes the pull-down node and/or a signal output terminal.
    Type: Application
    Filed: April 28, 2023
    Publication date: April 17, 2025
    Inventors: Xuehuan FENG, Yongqian LI, Xing YAO
  • Patent number: 12272414
    Abstract: A shift register includes a first scan unit, a leakage prevention unit, and a leakage prevention input unit. The first scan unit includes a first input circuit configured to transmit an input signal to a first pull-up node. The leakage prevention input unit is configured to: transmit a first voltage signal to a leakage prevention input node; and transmit a second voltage signal to the leakage prevention input node. The first voltage signal and the second voltage signal are different. The leakage prevention unit is configured to transmit one of the first voltage signal and the second voltage signal from the leakage prevention input node to a first leakage prevention node.
    Type: Grant
    Filed: November 7, 2023
    Date of Patent: April 8, 2025
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 12274128
    Abstract: A display substrate, including: a base, and a plurality of sub-pixels arranged on the base. At least one of the plurality of sub-pixels includes a pixel driving circuit and a light-emitting element electrically connected to the pixel driving circuit. The pixel driving circuit includes a plurality of transistors and at least one storage capacitor. In a direction perpendicular to the base, the display substrate includes: a semiconductor layer, a first metal layer, a second metal layer, a third metal layer and a fourth metal layer, which are sequentially arranged on the base. The semiconductor layer includes: an active layer of the plurality of transistors. The first metal layer includes at least a scanning line extending in a first direction, a gate electrode of the plurality of transistors, and a first capacitor electrode plate of the storage capacitor.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: April 8, 2025
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yongqian Li, Can Yuan
  • Publication number: 20250113613
    Abstract: Provided is an array substrate, including: a gate drive circuit disposed in a non-display region of a base substrate; a plurality of display pads disposed in a bonding region of the base substrate, wherein the plurality of display pads include gate drive signal pads, data signal pads, and voltage signal pads which are arranged in sequence in a first direction; and a plurality of gate connection wirings disposed in the non-display region of the base substrate, wherein a quantity of the gate connection wirings is greater than a quantity of the gate drive signal pads, wherein first ends of the gate connection wirings are electrically connected to the gate drive circuit, with second ends of one part of the gate connection wirings electrically connected to the gate drive signal pads and second ends of another part of the gate connection wirings electrically connected to the voltage signal pads.
    Type: Application
    Filed: August 22, 2022
    Publication date: April 3, 2025
    Inventors: Xuehuan FENG, Yongqian LI
  • Publication number: 20250104626
    Abstract: A display substrate and a display device. The display substrate includes a driving circuit layer, a first scanning line and a second scanning line. The driving circuit layer includes pixel units arranged in an array form, each pixel unit includes a plurality of sub-pixels, at least one sub-pixel includes a pixel driving circuit, the pixel driving circuit includes a first transistor and a second transistor, an active pattern of the first transistor includes a first channel region, an active pattern of the second transistor includes a second channel region, the first channel region is located on a side of the first scanning line away from the second scanning line, and the second channel region is located on a side of the second scanning line away from the first scanning line.
    Type: Application
    Filed: October 28, 2022
    Publication date: March 27, 2025
    Applicants: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can YUAN, Yongqian LI, Zhidong YUAN, Cheng XU, Dacheng ZHANG, Dandan ZHOU, Liu WU, Luke DING, Xiuting LIU
  • Publication number: 20250098446
    Abstract: A display substrate and driving method thereof, a display device are provided. The display substrate includes: a base substrate, and a plurality of repeating units and a plurality of data lines on the base substrate, the plurality of repeating units are divided into plurality of repeating unit columns; each repeating unit includes a plurality of subpixels, the subpixel includes a subpixel driving circuit, the subpixel driving circuit includes a data writing transistor, a writing control transistor and a driving transistor; the first electrode of the data writing transistor is coupled to the corresponding data line, the second electrode of the data writing transistor is coupled to the first electrode of the writing control transistor, and the second electrode of the writing control transistor is coupled to the gate of the driving transistor.
    Type: Application
    Filed: October 28, 2022
    Publication date: March 20, 2025
    Applicants: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Yuan, Liu Wu, Zhidong Yuan, Luke Ding, Yongqian Li, Cheng Xu, Dandan Zhou, Dacheng Zhang
  • Publication number: 20250095565
    Abstract: A driving signal generation circuit includes a first node generation circuit, a second node generation circuit, a third node generation circuit, a first control node control circuit, a second control node control circuit and an output circuit; the second control node control circuit is configured to control to connect the second control node and the first clock signal terminal under the control of the potential of the second control node, and control the potential of the second control node according to the potential of the second node; the output circuit is configured to output corresponding driving signal through the driving signal output terminal under the control of the potential of the first control node and the potential of the second control node.
    Type: Application
    Filed: July 29, 2022
    Publication date: March 20, 2025
    Applicants: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan FENG, Pan XU, Yongqian LI
  • Publication number: 20250098445
    Abstract: Pixel circuit, driving control method, display substrate and device are disclosed. The pixel circuit includes a driving circuit, a control circuit and a light-emitting module; the driving circuit generates driving current for driving the light-emitting module under control of control end of the driving circuit; the control circuit is connected to first scanning line, power supply voltage line and second end of the driving circuit, and controls connection between the power supply voltage line and the second end of the driving circuit under control of first scanning signal; second end of the light-emitting module is connected to a cathode voltage line. With the control circuit, branch current can be increased by increasing forward and reverse voltages, such that foreign bodies at dark spots can be burnt out and the dark spots can be changed into normal pixels, thereby improving product yield and displaying quality.
    Type: Application
    Filed: January 12, 2023
    Publication date: March 20, 2025
    Inventors: Can YUAN, Yongqian LI, Zhidong YUAN
  • Publication number: 20250095529
    Abstract: The present disclosure provides a display device, a gate drive circuit, a shift register unit and a driving method thereof. The shift register unit includes an input subcircuit configured to control a voltage at the first node under voltage control of the input control end; a signal output subcircuit configured to control disconnection and conduction between the clock signal ends and respective signal output ends under voltage control of the first node; a first control subcircuit configured to control the voltage at the first node under voltage control of the first control signal end.
    Type: Application
    Filed: May 16, 2023
    Publication date: March 20, 2025
    Inventors: Xuehuan FENG, Yongqian LI
  • Publication number: 20250098447
    Abstract: A display substrate and a display device are provided. The display substrate includes: a base substrate, data lines and sub-pixels on the base substrate. The sub-pixels include a sub-pixel driving circuit and a light-emitting element including a first electrode. The sub-pixel driving circuit includes a driving transistor and a data writing transistor having a first electrode coupled to the data line through a second connection structure. A second electrode of the driving transistor is coupled to the first electrode through a first connection structure. The first and second connection structures are in a non-aperture region of the sub-pixel. Orthographic projections of the first and second connection structures onto the base substrate are arranged along a first direction. An orthographic projection of the second connection structure onto the base substrate and an aperture region of the sub-pixel are along a second direction which intersects the first direction.
    Type: Application
    Filed: October 28, 2022
    Publication date: March 20, 2025
    Applicants: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Yuan, Zhidong Yuan, Liu Wu, Luke Ding, Yongqian Li, Cheng Xu, Dandan Zhou, Dacheng Zhang
  • Publication number: 20250098416
    Abstract: A display substrate and a display apparatus are provided. In the display substrate, the light emitting device includes a common electrode connected to a common voltage terminal. The display unit includes an auxiliary electrode line, a first auxiliary electrode and an auxiliary insulation layer. The auxiliary electrode line includes a longitudinal portion located in the display region and a transverse portion at least partially located in the non-light-emitting region, and the transverse portion is connected with the longitudinal portion; the first auxiliary electrode is located in the non-luminous region and electrically connected with the common electrode; the auxiliary insulation layer includes a first auxiliary via hole located in the non-light emitting region and exposing at least part of the lateral portion, and the first auxiliary electrode is connected with the lateral portion through the first auxiliary via hole.
    Type: Application
    Filed: April 29, 2022
    Publication date: March 20, 2025
    Inventors: Can YUAN, Yongqian LI, Yu WANG, Dacheng ZHANG, Xinxin WANG, Bin ZHOU, Ning LIU
  • Publication number: 20250098479
    Abstract: A display substrate is provided. The display substrate includes a planarization layer; a light emitting element on the planarization layer, including a first electrode, an organic layer on the first electrode, and a second electrode on a side of the organic layer away from the first electrode; an auxiliary electrode in a layer different from the second electrode; one or more first connecting structures electrically connecting the auxiliary electrode with the second electrode, respectively; and one or more second connecting structures electrically connecting the auxiliary electrode with the second electrode, respectively; wherein a respective first connecting structure of the one or more first connecting structures includes a conductive channel including a sintered conductive material; and the conductive channel is absent in the one or more second connecting structures.
    Type: Application
    Filed: February 28, 2023
    Publication date: March 20, 2025
    Applicants: Hefei BOE Joint Technology Co.,Ltd., BOE Technology Group Co., Ltd.
    Inventors: Can Yuan, Yongqian Li, Cheng Xu, Dandan Zhou, Ning Liu