Patents by Inventor Libin Liu

Libin Liu 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: 11335269
    Abstract: The present disclosure provides a pixel circuit including: a driving transistor and a voltage control circuit; wherein in the voltage control circuit, at least one transistor directly coupled to a gate of the driving transistor is an oxide thin film transistor. The disclosure also provides a display substrate and a display apparatus.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: May 17, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yipeng Chen, Libin Liu, Lujiang Huangfu
  • Publication number: 20220149138
    Abstract: An organic light-emitting diode display substrate, a display panel and a display device. The display substrate includes a source/drain layer (101), a planarization layer (102) and an anode layer (103) which are laminated in sequence; the source/drain layer (101) comprises at least one pair of first signal lines (110); the anode layer (103) comprises a common power line (130), and the common power line (130) is provided with an air discharge hole (131); and the overlapping areas of a projection pattern of the air discharge hole (131) and two first signal lines (110) in any pair of first signal lines (110) are equal, the overlapping areas are greater than 0, and the projection pattern of the air discharge hole (131) is a pattern of an orthographic projection, on the source/drain layer (101), of the air discharge hole (131) on the common power line (130).
    Type: Application
    Filed: November 13, 2020
    Publication date: May 12, 2022
    Inventors: Jiangnan LU, Guangliang SHANG, Can ZHENG, Yu FENG, Libin LIU, Jie ZHANG, Mei LI
  • Publication number: 20220148512
    Abstract: A gate driving unit, a gate driving circuit, a gate driving method, and a display device are provided. The gate driving unit includes a first output circuit and a second output circuit; the second output circuit comprises a first output sub-circuit; the first output circuit is respectively electrically connected to the first node, the second node and the first gate driving signal output end and is configured to control the first gate driving signal output end to output a first gate driving signal under the control of the potential of the first node and the potential of the second node; the first output sub-circuit is respectively electrically connected to the first node, the second gate driving signal output end and the first clock signal end, and is configured to control the second gate driving signal output end to be connected to the first clock signal end.
    Type: Application
    Filed: October 27, 2020
    Publication date: May 12, 2022
    Inventors: Can ZHENG, Yu FENG, Guangliang SHANG, Libin LIU, Shiming SHI
  • Patent number: 11328642
    Abstract: The present disclosure provides a gate driving unit, a gate driving method, a gate driving circuitry and a display device. The gate driving unit includes a reverse-phase gate driving signal output end, a normal-phase gate driving signal output end, an input circuitry, an output control circuitry, an input node control circuitry and an output circuitry. The input circuitry is configured to control an input end to be electrically connected to an input node under the control of a first clock signal. The output control circuitry is configured to control a potential at an output node under the control of a potential at the input node and a second clock signal. The input node control circuitry is configured to control the potential at the input node in accordance with the potential at the output node under the control of the second clock signal.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: May 10, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Guangliang Shang, Lijun Yuan, Haoliang Zheng, Libin Liu, Xing Yao, Seungwoo Han
  • Publication number: 20220139638
    Abstract: A carbon cloth/gallium oxynitride has a chemical formula of GaOxNy, where x=0.1-0.3 and y=0.7-0.9; and has a N/O molar ratio of 2.3 to 9. The carbon cloth/gallium oxynitride is a composite formed by loading gallium oxynitride nanoparticles on carbon cloth fibers, wherein the gallium oxynitride nanoparticles have a size range of 10 to 70 nm, and the carbon cloth/gallium oxynitride has a discharge specific capacitance of 30 to 865 mF cm?2 at current densities ranging from 0.5 to 100 mA cm?2. The working electrode is made from the carbon cloth/gallium oxynitride; and the supercapacitor is composed of the carbon cloth/gallium oxynitride working electrodes, a separator, an electrolyte, and an outer package.
    Type: Application
    Filed: November 3, 2021
    Publication date: May 5, 2022
    Inventors: Ligang GAI, Qing BAN, Jiayu WANG, Haihui JIANG, Libin LIU
  • Patent number: 11315990
    Abstract: The present application discloses a display panel comprising a substrate, a transistor layer on the substrate, and a pixel-defining layer on a side of the transistor layer distal to the substrate to divide the display panel into a plurality of subpixel regions. At least one subpixel region includes a display sub-region and a light-sensitive sub-region. The display panel further includes a plurality of organic light-emitting diodes formed on the transistor layer respectively on the plurality of subpixel regions. Additionally, the display panel includes a plurality of pixel circuits formed in the transistor layer respectively on the plurality of subpixel regions. Each pixel circuit includes at least a display-driving sub-circuit coupled to one organic light-emitting diode. At least one pixel circuit in the at least one subpixel region includes a light-sensing sub-circuit formed on the light-sensitive sub-region and coupled to the display-driving sub-circuit formed on the display sub-region.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: April 26, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Libin Liu, Xiaowei Xu
  • Patent number: 11315491
    Abstract: A pixel circuit, a display panel, and a driving method. The pixel circuit includes a data writing circuit, an ultrasonic acquiring and converting circuit, a storage circuit, a driving circuit, an output control circuit, and a light emitting device. The ultrasonic acquiring and converting circuit converts a received ultrasonic signal into a converted electrical signal, and provides the converted electrical signal to the data writing circuit; the data writing circuit provides the converted electrical signal or a data signal to a first node; the driving circuit provides a recognition signal obtained according to the converted electrical signal or a driving signal to the fourth node; the storage circuit maintains a voltage difference between the first node and the second node stable; the output control circuit provides a level of the fourth node to a third node; the third node outputs the recognition signal.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: April 26, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qian Yang, Libin Liu, Qiang Wang
  • Publication number: 20220122546
    Abstract: A display panel and a display device are disclosed, the display panel includes a plurality of display regions, a peripheral region surrounding the plurality of display regions, a plurality of light-emission control scan driving circuits provided in the peripheral region, a first start signal line, and a second start signal line. The first start signal line is different from the second start signal line, the plurality of display regions include a first display region and a second display region, the plurality of light-emission control scan driving circuits include a first light-emission control scan driving circuit and a second light-emission control scan driving circuit, the first start signal line is configured to provide a first start signal to the first light-emission control scan driving circuit, and the second start signal line is configured to provide a second start signal to the second light-emission control scan driving circuit.
    Type: Application
    Filed: December 28, 2021
    Publication date: April 21, 2022
    Inventors: Yue LONG, Chao ZENG, Yao HUANG, Meng LI, Weiyun HUANG, Libin LIU
  • Patent number: 11308887
    Abstract: A display panel and a display device are disclosed, the display panel includes a plurality of display regions, a peripheral region surrounding the plurality of display regions, a plurality of light-emission control scan driving circuits provided in the peripheral region, a first start signal line, and a second start signal line. The first start signal line is different from the second start signal line, the plurality of display regions include a first display region and a second display region, the plurality of light-emission control scan driving circuits include a first light-emission control scan driving circuit and a second light-emission control scan driving circuit, the first start signal line is configured to provide a first start signal to the first light-emission control scan driving circuit, and the second start signal line is configured to provide a second start signal to the second light-emission control scan driving circuit.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: April 19, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yue Long, Chao Zeng, Yao Huang, Meng Li, Weiyun Huang, Libin Liu
  • Publication number: 20220114958
    Abstract: The display panel includes: a base substrate; a silicon semiconductor layer, the silicon semiconductor layer including active silicon layers of a driving transistor and an initialization transistor, each of the active silicon layers being provided with a first region, a second region and a first channel region therebetween; a first insulating layer, a first conducting layer, a second insulating layer and an oxide semiconductor layer, the oxide semiconductor layer including an active oxide layer of a voltage stabilizing transistor, the oxide semiconductor layer being provided with a third region, a fourth region and a second channel region therebetween. In the same sub-pixel, the second region of the active silicon layer of the initialization transistor is electrically connected to the third region, and the fourth region is electrically connected to a gate electrode of the driving transistor.
    Type: Application
    Filed: May 9, 2020
    Publication date: April 14, 2022
    Inventors: Yu FENG, Libin LIU, Lujiang HUANGFU
  • Publication number: 20220115417
    Abstract: A glossy display panel, a manufacturing method thereof and a display device are provided. The glossy display panel includes a display area and a non-display area; wherein the non-display area includes a binding area, and the glossy display panel includes a first conductive pattern located on a base substrate and located in the binding area; a first insulating layer covering the first conductive pattern, wherein the first insulating layer is provided with a first via hole, and an orthographic projection of the first via hole onto the base substrate is located within an orthographic projection of the first conductive pattern onto the base substrate; a glossy reflection layer, wherein an orthographic projection of the glossy reflection layer onto the base substrate does not overlap with an orthographic projection of the binding area onto the base substrate; and a chip on film.
    Type: Application
    Filed: April 30, 2020
    Publication date: April 14, 2022
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xueyan TIAN, Jianchao ZHU, Libin LIU, Liangjian LI, Caiyu QU, Dengyun CHEN, Ximeng LI
  • Publication number: 20220109033
    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: December 15, 2021
    Publication date: April 7, 2022
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lujiang HUANGFU, Xiaodan JIN, Yinan LIANG, Zhenzhen LI, Wenjing TAN, Libin LIU, Qian YANG, Hongli WANG
  • Patent number: 11296182
    Abstract: An OLED display substrate, a manufacturing method thereof, and a display device are provided. The OLED display substrate includes a base substrate, a conductive pattern, a driving circuit layer, an anode layer, a light-emitting layer and a cathode layer. The driving circuit layer, the anode layer, the cathode layer and the light-emitting layer are arranged at a same side of the base substrate. The conductive pattern is arranged between the base substrate and the driving circuit layer and electrically connected to the cathode layer through a plurality of via holes.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: April 5, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hao Zhang, Libin Liu
  • Publication number: 20220101788
    Abstract: The present disclosure provides a pixel circuit, a pixel driving method and a display device. The pixel circuit includes a driving circuit, an energy storage circuit and a switch control circuit. A first end of the energy storage circuit is coupled to a control end of the driving circuit, a second end of the energy storage circuit is coupled to a first end of the driving circuit via the switch control circuit, and the energy storage circuit is configured to store a voltage. The switch control circuit is configured to control the second end of the energy storage circuit to be electrically coupled to a voltage application end or the first end of the driving circuit under the control of a light-emission control signal from a light-emission control line. The driving circuit is configured to generate a driving current in accordance with a voltage between the control end and first end of the driving circuit.
    Type: Application
    Filed: January 5, 2021
    Publication date: March 31, 2022
    Inventors: Lujiang HUANGFU, Tian DONG, Libin LIU, Xinshe YIN
  • Publication number: 20220093045
    Abstract: A pixel circuit, a display panel, and a display device. A pixel circuit includes a potential compensation subcircuit configured to control a junction voltage of a light emitting element to be within a preset voltage range according to an initial voltage input by an initialization reset voltage terminal and a reset sequence input by a reset sequence signal terminal. The preset voltage range is higher than zero and lower than an emission threshold voltage of the light emitting element.
    Type: Application
    Filed: April 30, 2021
    Publication date: March 24, 2022
    Inventors: Lujiang HUANGFU, Li WANG, Libin LIU
  • Patent number: 11282910
    Abstract: The present disclosure provides an array substrate, a manufacturing method thereof, and a display device. The array substrate includes: a base substrate, a gate on the base substrate, a conductive wire above the base substrate, a first insulating layer on the gate and the base substrate, and a shielding structure on the base substrate. A first orthographic projection of the conductive wire on the base substrate is spaced apart from a second orthographic projection of the gate on the base substrate. A third orthographic projection of the shielding structure on the base substrate is located between the first orthographic projection and the second orthographic projection. The shielding structure is used to at least partially shield a crosstalk of the conductive wire to the gate.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: March 22, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Li Wang, Libin Liu
  • Publication number: 20220077268
    Abstract: The present disclosure provides a display substrate, a display panel including the display substrate, and an electronic device. The display substrate includes: a base substrate; a transistor on the base substrate, wherein the transistor includes a first gate layer; a signal line located on the base substrate and configured to transmit an electrical signal; and a conductive isolation portion located between the transistor and the signal line adjacent to the transistor in a direction parallel to the base substrate, wherein the conductive isolation portion is electrically connected with a DC source signal on the display substrate.
    Type: Application
    Filed: November 19, 2020
    Publication date: March 10, 2022
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Libin Liu, Qian Yang
  • Patent number: 11269206
    Abstract: The present disclosure relates to a flexible display substrate and a flexible display device. The flexible display substrate includes a flexible base substrate and a pixel layer. The flexible base substrate includes: a plurality of opening regions, as well as a plurality of island regions and a plurality of bridge regions divided by the plurality of opening regions; and a pixel layer including a plurality of display units arranged in the plurality of island regions respectively, in which each of the plurality of display units is provided with a first groove, the first groove divides the corresponding display units into a display section and a dam section, and at least a part of the dam section is located between the display section and the bridge region adjacent to the display section.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: March 8, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qian Yang, Pinfan Wang, Libin Liu, Chunyan Xie
  • Publication number: 20220068177
    Abstract: Disclosed are a stretchable display panel, a method for compensating a threshold voltage of a transistor in the stretchable display panel, and a computer readable storage medium. The stretchable display panel includes: a base substrate; a transistor on the base substrate, the transistor includes a gate electrode layer and an active layer that are at least partially stacked; and a voltage compensation layer, the voltage compensation layer is located between the transistor and the base substrate, wherein the voltage compensation layer is applied with a compensation voltage that depends on a stretching amount of the stretchable display panel.
    Type: Application
    Filed: October 19, 2020
    Publication date: March 3, 2022
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Libin Liu, Qian Yang
  • Patent number: 11264430
    Abstract: A pixel arrangement structure are provided, which includes a plurality of repeating units. Each of the plurality of repeating units includes two first sub-pixels, one second sub-pixel, and one third sub-pixel. Each of the first sub-pixel, the second sub-pixel and the third sub-pixel includes a pixel defining layer, the pixel defining layer includes a pixel defining layer opening to define an effective light emitting region of each sub-pixel; a plurality of first sub-pixels are arranged along the second direction to form a plurality of first sub-pixel groups, orthographic projections of pixel defining layer openings of the first sub-pixels in adjacent ones of the plurality of first sub-pixel groups on a straight line parallel to the second direction do not overlap each other.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: March 1, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lujiang Huangfu, Libin Liu, Fengli Ji, Xiaodan Jin, Yinan Liang, Mei Li, Jie Zhang, Chang Luo, Jianpeng Wu, Hongli Wang