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).

  • Patent number: 11895890
    Abstract: A display substrate includes a first base and a plurality of pixel units arranged in rows and in columns. A pixel unit includes a first light-emitting device, a second light-emitting device and a third light-emitting device. A first effective light-emitting area where the first light-emitting device is located and a second effective light-emitting area where the second light-emitting device is located are arranged at intervals along a first direction, a third effective light-emitting area where the third light-emitting device is located is spaced apart from both the first effective light-emitting area and the second effective light-emitting area arranged along a second direction.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: February 6, 2024
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong Yuan, Yongqian Li, Can Yuan
  • Patent number: 11895879
    Abstract: Provided are a display substrate and a preparation method thereof, and a display apparatus. The display substrate includes a plurality of display units. The display unit includes a display area and a transparent area. The display area includes a plurality of sub-pixels. In a direction perpendicular to the display substrate, the sub-pixel includes a first metal layer, a semiconductor layer, a second metal layer and a third metal layer which are arranged on a substrate. The first metal layer includes a first plate, the semiconductor layer includes a second plate, the second metal layer includes a first scanning line and a second scanning line, and the third metal layer includes a third plate, a first power supply line, a second power supply line, a compensation line and a data line.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: February 6, 2024
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Meng Li, Yongqian Li, Ying Wang
  • Patent number: 11891318
    Abstract: A method and apparatus for direct drying of inorganic sludge with a drum drawing process, comprising the following steps: 1) drum mixed drying of slag and sludge: respectively conveying the slag and sludge into a drum (1) in proportion, completing mixing, heat exchange, dehydration, cooling and crushing of the slag and sludge under the rolling action of the drum (1) and a steel ball to achieve cooling, crushing and drying of the slag and sludge, and directly discharging the obtained mixture; 2) slag and sludge separation: separating the steel slag and dry sludge in a manner of combining screening and rotary separation; 3) tail gas treatment: treating dusts, sulfides and organic compounds in tail gas generated by the dry sludge by using wet alkali washing and activated carbon adsorption, and discharging the treated tail gas; and 4) tailing sludge treatment: generating steam and dusts in the drum treatment of the slag and sludge, allowing dusts to enter a tail gas treatment device (4) with steam, aggregating th
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: February 6, 2024
    Assignee: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Yingjie Wang, Yongli Xiao, Yongqian Li
  • Patent number: 11887683
    Abstract: The present disclosure provides a shift register unit, a driving method, a gate driving circuit and a display device. The shift register unit includes a pull-down node control circuit; the pull-down node control circuit is electrically connected to an input terminal, a reset terminal, a first voltage terminal, a second voltage terminal and a pull-down node, respectively, and is configured to, under the control of an input signal provided by the input terminal and a reset signal provided by the reset terminal, control the pull-down node to be electrically conducted to the first voltage terminal or the second voltage terminal, and control to hold a potential of the pull-down node.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: January 30, 2024
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhidong Yuan, Yongqian Li, Can Yuan, Wenchao Bao
  • Publication number: 20240032355
    Abstract: A display substrate and a display device are provided. The display substrate includes a light emitting element disposed on a base substrate, and an encapsulation layer, a connection layer, a light extraction layer, a polarization conversion layer and a polarization layer stacked sequentially at a light exiting side of the light emitting element. The light extraction layer is configured to convert at least a portion of light emitted by the light emitting element incident onto the light extraction layer into circularly polarized light with a set rotational direction to pass through the light extraction layer. The polarization conversion layer is configured to convert the circularly polarized light passing through the light extraction layer into linearly polarized light, with a polarization direction parallel to a direction of a light transmission axis of the polarization layer; the connection layer is configured to bond the light extraction layer to the encapsulation layer.
    Type: Application
    Filed: November 12, 2021
    Publication date: January 25, 2024
    Inventors: Luke DING, Yongqian LI
  • Patent number: 11882729
    Abstract: A display substrate comprises a pixel driving circuit and a bottom-emission light-emitting device that are disposed on a base and located in each sub-pixel in a display area. The light-emitting device includes a first electrode electrically connected to the pixel driving circuit. The pixel driving circuit includes a first storage capacitor and a second storage capacitor connected in parallel. The first storage capacitor includes a first storage electrode and a second storage electrode that are disposed oppositely, and the first electrode serves as the first storage electrode. The second storage capacitor includes the second storage electrode and a third storage electrode that are disposed oppositely. The second storage electrode is located between the first storage electrode and the third storage electrode. The first storage electrode is electrically connected to the third storage electrode. The first electrode, the second storage electrode, and the third storage electrode are all transparent electrodes.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: January 23, 2024
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Yuan, Yongqian Li, Zhidong Yuan
  • Patent number: 11877482
    Abstract: The present disclosure provides a display substrate, a method for manufacturing the same, a driving method and a display device. The display substrate includes a base substrate, gate lines, data lines and sub-pixels. The sub-pixels include sub-pixel columns corresponding to the data lines in a one-to-one manner. In a sub-pixel driving circuit of the sub-pixel, a driving transistor and a data writing transistor are located at a first side of an aperture area of the sub-pixel; a sensing transistor is located at a second side of the aperture area of the sub-pixel. The first side and the second side are opposite sides of the aperture area along the extension direction of the data lines. Gate electrodes of sensing transistors in a same sub-pixel row, and gate electrodes of data writing transistors in an adjacent next sub-pixel row, are all coupled to a gate line corresponding to the adjacent next sub-pixel row.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: January 16, 2024
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Yuan, Yongqian Li, Zhidong Yuan
  • Patent number: 11875750
    Abstract: An array substrate includes: a substrate, at least one gate driving circuit and at least one clock signal line that are located on a same side of the substrate. The gate driving circuit includes a plurality of cascaded shift registers located in different rows, the plurality of shift registers are divided into at least two groups of shift registers, each group of shift registers includes at least one shift register, located in a same column. A gate driving circuit in the at least one gate driving circuit corresponds to at least one clock signal line. The clock signal line includes a main body transmission section configured to transmit a clock signal, and at least two branch transmission sections connected to the main body transmission section. Each branch transmission section is connected to a clock signal input terminal of each shift register in a respective group of shift registers.
    Type: Grant
    Filed: December 26, 2020
    Date of Patent: January 16, 2024
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong Yuan, Pan Xu, Can Yuan, Yongqian Li, Zhongyuan Wu
  • Patent number: 11869426
    Abstract: A pixel driving circuit includes: a data writing sub-circuit configured to write a data signal received at a data signal terminal into a first node under control of a first scanning signal received at a first scanning signal terminal; a driving sub-circuit configured to drive a light-emitting device coupled to a second node to work under control of a voltage of the first node and a first power supply voltage signal received at a first power supply voltage signal terminal; and a time control sub-circuit configured to transmit a control signal received at a control signal terminal to the first node under control of a second scanning signal received at a second scanning signal terminal after the light-emitting to device works for a preset time, so that the driving sub-circuit is turned off to control the light-emitting device to stop working.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: January 9, 2024
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yongqian Li, Xuehuan Feng
  • Patent number: 11869411
    Abstract: A display substrate includes: a base substrate; a first conductive pattern arranged on the base substrate; a first insulation layer arranged at a side of the first conductive pattern away from the base substrate; a second conductive pattern arranged at a side of the first insulation layer away from the base substrate; a second insulation layer arranged at a side of the second conductive pattern away from the base substrate; and a third conductive pattern arranged at a side of the second insulation layer away from the base substrate. The third conductive pattern and the first conductive pattern together serve as a first electrode plate of the capacitor, and the second conductive pattern serves as a second electrode plate of the capacitor.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: January 9, 2024
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li, Dacheng Zhang, Lang Liu
  • Publication number: 20240005875
    Abstract: A shift register, a gate drive circuit and a driving method therefor. The shift register includes a display pre-charge reset subcircuit, a sensing pre-charge reset subcircuit, a pull-down control subcircuit, an output subcircuit, a sensing cascade subcircuit and a black frame insertion cascade subcircuit. The display pre-charge reset subcircuit is configured to provide a signal of a first power supply end for a pull-up node under control of a first signal input end and provide a signal of a second power supply end to the pull-up node under control of a reset signal end; the sensing pre-charge reset subcircuit is configured to provide a signal of a first clock signal end to the pull-up node under control of the sensing cascade node and the first clock signal end, and provide a signal of the second power supply end to the pull-up node under control of a total reset end.
    Type: Application
    Filed: September 13, 2023
    Publication date: January 4, 2024
    Inventors: Xuehuan FENG, Yongqian LI
  • Patent number: 11862099
    Abstract: The present disclosure provides a shift register unit, including a detection signal input sub-circuit, a display signal input sub-circuit, an output circuit, a pull-down control circuit and a signal output terminal, the output circuit includes a pull-up sub-circuit and a pull-down sub-circuit, the pull-down control circuit includes a selection sub-circuit and a plurality of pull-down control sub-circuits. The present disclosure further provides a gate driving circuit, a display panel and a driving method for driving the display panel. The shift register unit has a simple structure and a long service life.
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: January 2, 2024
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11854509
    Abstract: A display substrate has a display area and a peripheral area. The display substrate includes a plurality of sub-pixels, a plurality of groups of gate scan signal lines, and a plurality of groups of data lines. Each group of gate scan signal lines includes at least one gate scan signal line, each group of data lines includes n data lines, and the plurality of sub-pixels are arranged in an array; and n is greater than or equal to 2. A group of gate scan signal lines is electrically connected to n rows of sub-pixels. A column of sub-pixels is electrically connected to a group of data lines, and includes a plurality of groups of sub-pixels. Each group of sub-pixels includes n sub-pixels. The n sub-pixels are respectively electrically connected to n data lines in the group of data lines to which this column of sub-pixels is electrically connected.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: December 26, 2023
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Yuan, Yongqian Li, Zhidong Yuan
  • Publication number: 20230413629
    Abstract: A display substrate, a manufacturing method therefor, and a display device. The display substrate comprises multiple display units, and each display unit includes a display area and a transparent area; each display area is provided with a first power supply line and a second power supply line along a first direction, the display area is provided with a first scan signal line, a second scan signal line, a second scan connection line, and a first scan connection line along a second direction, and the second scan connection line and the second scan signal line are connected into a first annular structure; each display area is further provided with a third scan connection line, and the third scan connection line, the first scan connection line, and the first scan signal line are connected into a second annular structure.
    Type: Application
    Filed: March 9, 2022
    Publication date: December 21, 2023
    Inventors: Can YUAN, Yongqian LI
  • Patent number: 11848064
    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: in response to a first voltage signal received at a first voltage signal terminal, transmit the first voltage signal to a leakage prevention input node; and in response to a second voltage signal received at a second voltage signal terminal, transmit the second voltage signal to the leakage prevention input node. The first voltage signal and the second voltage signal are mutually inverted signals. 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: December 26, 2020
    Date of Patent: December 19, 2023
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11849617
    Abstract: Embodiments of the present disclosure provide a display panel and a display device. The display panel includes a base substrate, a plurality of pixel units and a plurality of gate line groups. At least one pixel unit includes a plurality of sub-pixels. At least one sub-pixel includes a sensing transistor and a driving transistor. Each gate line group includes a first gate line and a second gate line; for the first gate line and the second gate line corresponding to the sub-pixels in the same row, the positions of the sensing transistors are closer to the second gate lines, and the positions of the driving transistors are closer to the first gate line, For two sub-pixels close to each other and located in different pixel units in the same row, at least one signal line has a double-layer alignment structure, and the double-layer alignments are electrically connected with each other.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: December 19, 2023
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhongyuan Wu, Yongqian Li, Can Yuan, Zhidong Yuan, Meng Li, Dacheng Zhang, Lang Liu
  • Patent number: 11844255
    Abstract: A display panel includes a substrate, a pad, an auxiliary electrode layer, a data line layer, a first electrode layer, a light emitting layer, and a second electrode layer. The substrate has a display area and a peripheral area. The pad is disposed on a side of the substrate and located in the peripheral area. The auxiliary electrode layer is disposed on the same side of the substrate as the pad; the data line layer is disposed on a same layer as the auxiliary electrode layer; the first electrode layer is disposed on a side of the auxiliary electrode layer facing away from the substrate; the light emitting layer is disposed on a side of the first electrode layer facing away from the substrate; and the second electrode layer is disposed on a side of the light emitting layer facing away from the substrate and connected to the auxiliary electrode layer.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: December 12, 2023
    Assignees: Hefei BOE Joint Technology Co., Ltd, BOE TECHNOLOGY GROUP CO., LTD
    Inventors: Zhongyuan Wu, Yongqian Li, Zhidong Yuan, Meng Li, Can Yuan
  • Patent number: 11842683
    Abstract: A display apparatus, a display panel, and a driving method thereof, and a method of detecting a pixel circuit are described. The display panel includes a pixel unit and a detection apparatus, and the pixel unit includes a pixel circuit and a light-emitting element. The pixel circuit includes a first transistor, a second transistor, a driving transistor, and a storage capacitor. The detection device is configured to: turn off the first transistor and the second transistor, and detect an amount of current leakage of the driving transistor leaked through the sensing line to obtain a first current leakage parameter; detect a first characteristic parameter of the driving transistor to obtain a first reference characteristic parameter; and determine a first target characteristic parameter according to the first current leakage parameter and the first reference characteristic parameter.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: December 12, 2023
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Yuan, Yongqian Li, Zhidong Yuan
  • Patent number: 11844253
    Abstract: The present disclosure provides a display panel and a display device. The display panel includes a gate driving circuit including a first transistor; a base substrate; a functional layer located on a side of the base substrate, a material of the functional layer is a thermal conductive material, and the functional layer includes a first functional portion; an active layer located on a side of the functional layer away from the base substrate, the active layer includes a first active portion including at least one first active sub-portion which is configured to form a channel region of the first transistor; a second conductive layer located on a side of the active layer away from the base substrate, the second conductive layer includes a first conductive portion connected to the first functional portion through a first via hole.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: December 12, 2023
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO. , LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11842689
    Abstract: A pixel circuit, a driving method of pixel circuit, and a display device are provided. The pixel circuit includes: a light emitting device, a driving sub-circuit, an energy storage sub-circuit, a data writing sub-circuit and a pull-down sub-circuit; the data writing sub-circuit is configured to control a voltage signal on a data line to be written into a control end of the driving sub-circuit in response to a data writing control signal; a first end of the driving sub-circuit is electrically connected to a target node, a second end of the driving sub-circuit is electrically connected to a power supply voltage, and the driving sub-circuit is configured to control a conduction of the driving sub-circuit under a control of a voltage on a control end of the driving sub-circuit.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: December 12, 2023
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yongqian Li, Xuehuan Feng