Patents by Inventor Dachao Li

Dachao 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: 20240397805
    Abstract: A display panel, a displaying device and a wearable device. The display panel includes a displaying region and a peripheral region surrounding the displaying region, a region of the peripheral region other than the bonding sub-region includes a first testing-unit group and a second testing-unit group, and each of the first testing-unit group and the second testing-unit group includes one or more circuit testing units; the displaying region includes a first lateral side and a second lateral side that extend in a first direction and face each other, the first direction refers to a direction from the bonding sub-region pointing to the displaying region; and a maximum distance from the first testing-unit group to the first lateral side in a direction perpendicular to the first direction is equal to a maximum distance from the second testing-unit group to the second lateral side in the direction perpendicular to the first direction.
    Type: Application
    Filed: July 27, 2022
    Publication date: November 28, 2024
    Applicants: Yunnan Invensight Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Chao Pu, Shengji Yang, Xiaochuan Chen, Kuanta Huang, Pengcheng Lu, Junyan Yang, Dachao Li, Rongrong Shi, Junbo Wei, Xiao Bai, Bo Yang, Bin Wu, Shengdi Zhu, Yanqiang Ding, Zhicheng Guo, Yun Zhu
  • Publication number: 20240395199
    Abstract: A pixel circuit includes a light emitting element, a driving circuit, a first energy storage circuit, a second energy storage circuit, and a writing-in control circuit; a first terminal of the first energy storage circuit is electrically connected to a control terminal of the driving circuit and a first terminal of the writing-in control circuit respectively, and a second terminal of the first energy storage circuit is electrically connected to a first terminal of driving circuit, a first terminal of the second energy storage circuit is electrically connected to a second terminal of the writing-in control circuit, and a second terminal of the second energy storage circuit is electrically connected to the writing-in terminal.
    Type: Application
    Filed: May 31, 2022
    Publication date: November 28, 2024
    Applicants: YUNNAN INVENSIGHT OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dachao LI, Zhijian ZHU, Shengji YANG, Xiaochuan CHEN, Junyan YANG, Pengcheng LU, Longfei FAN
  • Publication number: 20240395200
    Abstract: A display substrate, a manufacturing method thereof and a display apparatus are provided. The display substrate includes multiple sub-pixels, a sub-pixel includes a first region (q1), a gap region (q3) and a second region (q2); the sub-pixel includes a first transistor (T1) including first active layer (1) and first gate electrode (11), a second transistor (T2) including second active layer (2) and second gate electrode (12) and a third transistor (T3) including third active layer (3) and third gate electrode (13); the first active layer is disposed in the first region, the second active layer and the third active layer are disposed in the second region, and via holes through which the first gate electrode and the third gate electrode are connected to a scan signal line and a via hole through which the second gate electrode is connected to the first transistor are provided in the gap region.
    Type: Application
    Filed: July 29, 2022
    Publication date: November 28, 2024
    Inventors: Ning CONG, Longfei FAN, Dachao LI, Can ZHANG, Minghua XUAN, Xiaochuan CHEN
  • Publication number: 20240383917
    Abstract: Provided are a compound as shown in general formula (I), or a stereoisomer, deuterate, solvate, prodrug, metabolite, pharmaceutically acceptable salt or co-crystal thereof, an intermediate thereof, a preparation method therefor, and the use thereof in the preparation of a drug for treating a disease associated with the activity or expression quantity of complement factor B.
    Type: Application
    Filed: August 18, 2022
    Publication date: November 21, 2024
    Applicant: Xizang Haisco Pharmaceutical Co., Ltd.
    Inventors: Chen ZHANG, Yuting LIAO, Guozhi ZHU, Dachao TANG, Yan YU, Pingming TANG, Xinfan CHENG, Yao LI, Jia NI, Pangke YAN
  • Publication number: 20240386846
    Abstract: A pixel circuit includes a light emitting element, a driving circuit, a first energy storage circuit, a second energy storage circuit, and a writing-in-in control circuit and a first control circuit; a first terminal of the first energy storage circuit is electrically connected to a control terminal of the driving circuit, and a second terminal of the first energy storage circuit is electrically connected to a first terminal of the driving circuit; a first terminal of the second energy storage circuit is electrically connected to a control terminal of the driving circuit; the writing-in control circuit is configured to control to connect or disconnect the writing-in terminal and the second terminal of the second energy storage circuit under the control of the first writing-in control signal provided by the first writing-in control terminal.
    Type: Application
    Filed: June 24, 2022
    Publication date: November 21, 2024
    Applicants: Yunnan Invensight Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dachao LI, Shengji YANG, Xiaochuan CHEN, Zhijian ZHU, Junyan YANG
  • Patent number: 12142211
    Abstract: A display substrate, a pixel circuit, a driving method and a display device are provided. The display substrate includes a substrate and a plurality of repeating units arranged in an array on one side of the substrate, each repeating unit includes at least two light emitting elements and at least two pixel circuits, each pixel circuit includes a first transistor, a second transistor and a third transistor, and the third transistor is configured to drive the light emitting element to emit light; each repeating unit further includes a first region, a second region and a third region arranged continuously in the first direction, the first region includes at least two of the first transistors, the third region including at least two of the third transistors, and the type of the first transistor and the type of the third transistor are different.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: November 12, 2024
    Assignees: Yunnan Invensight Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Junbo Wei, Dachao Li, Shengji Yang, Pengcheng Lu, Kuanta Huang, Zhijian Zhu, Yuanlan Tian
  • Patent number: 12120914
    Abstract: A display device and a manufacturing method thereof are disclosed. The display device includes a base substrate and at least one pixel circuit provided on the base substrate, and the pixel circuit includes a driving transistor, a first transistor, and a second transistor; the driving transistor includes a control electrode, a first electrode, and a second electrode; the first transistor includes a first active region, the second transistor includes a second active region, the driving transistor includes a fourth active region, at least one of a doping concentration of the first active region and a doping concentration of the second active region is greater than a doping concentration of the fourth active region.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: October 15, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dachao Li, Shengji Yang, Chen Xu
  • Patent number: 12116463
    Abstract: A coagent masterbatch comprising a semi-crystalline polyolefin carrier resin and an alkenyl-functional coagent. An electron-beam curable formulation comprising the coagent masterbatch and a polyolefin compound. A method of making the masterbatch and formulation; an electron-beam-cured polyolefin product prepared therefrom; a manufactured article comprising or made from the masterbatch, formulation, or product; and a method of using the manufactured article.
    Type: Grant
    Filed: January 18, 2023
    Date of Patent: October 15, 2024
    Assignee: Dow Global Technologies LLC
    Inventors: Yongyong Yang, Dachao Li, Yabin Sun, Timothy J. Person, Jeffrey M. Cogen, Paul J. Caronia
  • Publication number: 20240296802
    Abstract: A driving circuit, a driving method, a display device, and a display control method are provided. The driving circuit includes multi-stage driving units and an on/off control circuit. Each of the driving units includes an input end and a driving signal output end, and each of the driving units is configured for outputting a corresponding driving signal via the driving signal output end according to an input signal provided by the input end. The input end of a first-stage driving unit is electrically connected to a start signal end. The on/off control circuit is electrically connected to an on/off control end and input ends of the multi-stage driving units, and configured for controlling the electric connection or electric disconnection of the input ends of the multi-stage driving units under the control of an on/off control signal provided by the on/off control end.
    Type: Application
    Filed: June 24, 2022
    Publication date: September 5, 2024
    Applicants: Yunnan Invensight Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yaoxi Ma, Longfei Fan, Shanghong Jiang, Pengcheng Lu, Shengji Yang, Xiaochuan Chen, Dachao Li
  • Publication number: 20240237404
    Abstract: A display device and a manufacturing method thereof are disclosed. The display device includes a base substrate and at least one pixel circuit provided on the base substrate, and the pixel circuit includes a driving transistor, a first transistor, and a second transistor; the driving transistor includes a control electrode, a first electrode, and a second electrode; the first transistor includes a first active region, the second transistor includes a second active region, the driving transistor includes a fourth active region, at least one of a doping concentration of the first active region and a doping concentration of the second active region is greater than a doping concentration of the fourth active region.
    Type: Application
    Filed: September 28, 2023
    Publication date: July 11, 2024
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dachao LI, Shengji YANG, Chen XU
  • Publication number: 20240185779
    Abstract: A display substrate, a pixel circuit, a driving method and a display device are provided. The display substrate includes a substrate and a plurality of repeating units arranged in an array on one side of the substrate, each repeating unit includes at least two light emitting elements and at least two pixel circuits, each pixel circuit includes a first transistor, a second transistor and a third transistor, and the third transistor is configured to drive the light emitting element to emit light; each repeating unit further includes a first region, a second region and a third region arranged continuously in the first direction, the first region includes at least two of the first transistors, the third region including at least two of the third transistors, and the type of the first transistor and the type of the third transistor are different.
    Type: Application
    Filed: September 15, 2021
    Publication date: June 6, 2024
    Inventors: Junbo WEI, Dachao LI, Shengji YANG, Pengcheng LU, Kuanta HUANG, Zhijian ZHU, Yuanlan TIAN
  • Publication number: 20240138189
    Abstract: A display device and a manufacturing method thereof are disclosed. The display device includes a base substrate and at least one pixel circuit provided on the base substrate, and the pixel circuit includes a driving transistor, a first transistor, and a second transistor; the driving transistor includes a control electrode, a first electrode, and a second electrode; the first transistor includes a first active region, the second transistor includes a second active region, the driving transistor includes a fourth active region, at least one of a doping concentration of the first active region and a doping concentration of the second active region is greater than a doping concentration of the fourth active region.
    Type: Application
    Filed: September 27, 2023
    Publication date: April 25, 2024
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dachao LI, Shengji YANG, Chen XU
  • Publication number: 20240130202
    Abstract: A display panel includes an active area and a peripheral area surrounding the active area, and the display panel further includes: a substrate and a plurality of light emitting devices arranged on the substrate in array, wherein the plurality of light emitting devices are located at least in the active area; a conducting layer comprising a cathode ring and cathodes of the plurality of light emitting devices, wherein the cathode ring is located in the peripheral area, and the cathode ring surrounds the active area; and a lens layer located at a side of the light emitting devices away from the substrate, wherein the lens layer extends from the active area to the peripheral area; wherein an orthographic projection of the lens layer on the substrate is located within an area delineated by an outer contour of an orthographic projection of the cathode ring on the substrate.
    Type: Application
    Filed: October 18, 2022
    Publication date: April 18, 2024
    Applicants: Yunnan Invensight Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Chao Pu, Shengji Yang, Junyan Yang, Xiaochuan Chen, Kuanta Huang, Pengcheng Lu, Dachao Li, Rongrong Shi, Junbo Wei, Xiao Bai, Bo Yang
  • Publication number: 20240122014
    Abstract: A display substrate and a display device are provided. The display substrate includes a sub-pixel and the sub-pixel includes a pixel circuit including a data writing sub-circuit, a storage sub-circuit and a driving sub-circuit. The display substrate further includes a first connection electrode and the storage sub-circuit includes a storage capacitor; the first connection electrode is in a same layer as the second capacitor electrode and is insulated form the second capacitor electrode, and the second capacitor electrode electrically connects the first capacitor electrode to the data writing sub-circuit.
    Type: Application
    Filed: December 14, 2023
    Publication date: April 11, 2024
    Inventor: Dachao LI
  • Patent number: 11952470
    Abstract: A coagent masterbatch comprising a semi-crystalline polyolefin carrier resin and an alkenyl-functional coagent. A peroxide curable formulation comprising the coagent masterbatch and a polyolefin compound. A method of making the masterbatch and formulation; a peroxide-cured polyolefin product prepared therefrom; a manufactured article comprising or made from the masterbatch, formulation, or product; and a method of using the manufactured article.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: April 9, 2024
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Dachao LI, Yabin Sun, Yongyong Yang, Timothy J Person, Jeffrey M. Cogen, Rajen M. Patel
  • Patent number: 11930664
    Abstract: A display device and a manufacturing method thereof are disclosed. The display device includes a base substrate and at least one pixel circuit provided on the base substrate. The pixel circuit includes a driving transistor, a first transistor, and a second transistor; the driving transistor includes a control electrode, a first electrode, and a second electrode; a direction from a first electrode of the first transistor to a second electrode of the first transistor is a first direction, a direction from a first electrode of the second transistor to a second electrode of the second transistor is a second direction, a direction from the first electrode of the driving transistor to the second electrode of the driving transistor is a fourth direction, and at least one of the first direction and the second direction intersects with the fourth direction.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: March 12, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dachao Li, Shengji Yang, Chen Xu
  • Patent number: 11840621
    Abstract: A method of making a homogeneous mixture comprising a liquid hydrocarbylsulfonic acid and a polyolefin, the method comprising multiple stages of adding, mixing, and monitoring of temperature of the ingredients. The method enables making embodiments of the homogeneous mixture having more than 3 weight percent of the liquid hydrocarbylsulfonic acid incorporated into the polyolefin and prevents fouling of the mixer device.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: December 12, 2023
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Qian Gou, Neil W. Dunchus, Dachao Li, Michael J. Parker
  • Publication number: 20230282628
    Abstract: Provided is an ultraviolet device packaging structure, including: a substrate, a light-emitting cup, a UV light-emitting diode (LED) chip, a protection chip, and a detection chip. The substrate is provided with a front surface circuit layer on a front surface and an electric bonding pad on a rear surface. An inner wall of the light-emitting cup is a light-concentrating reflecting surface. The light-emitting cup is open at both ends, one end of the light-emitting cup is a light-emitting port, and the other end is fixedly disposed on the front surface of the substrate. The UV LED chip, the protection chip, the detection chip are all disposed in a functional region of the front surface circuit layer. The detection chip and the protection chip are both located at a side of the UV LED chip that is away from the light-emitting port. A lens is fixedly disposed at the light-emitting port.
    Type: Application
    Filed: March 2, 2023
    Publication date: September 7, 2023
    Inventors: Zhichao YAN, Xiaohui HUANG, Jianqing LIU, Dachao LI
  • Patent number: 11749192
    Abstract: A display substrate and a display device are provided. The display substrate includes a base substrate, a pixel row, and a first scan line and a second scan line on the base substrate. The pixel row includes a plurality of sub-pixels along a first direction on the base substrate; the first scan line and the second scan line are extended along the first direction, and each sub-pixel includes a pixel circuit including a data writing sub-circuit, a storage sub-circuit, and a driving sub-circuit. The first scan line and the second scan line are respectively electrically connected with the data writing circuit to provide control signals. The first scan line and the second scan line have the same resistance and the same area of orthographic projections on the base substrate.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: September 5, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Dachao Li
  • Publication number: 20230265264
    Abstract: A crosslinkable polyolefin formulation comprises (A) a polyethylene polymer and (B) an arylketone of formula (I) as defined herein; products made therefrom; methods of making and using same; and articles containing same.
    Type: Application
    Filed: October 25, 2021
    Publication date: August 24, 2023
    Inventors: Xindi Yu, Paul M. Mwasame, Decai Yu, Sukrit Mukhopadhyay, Yuanqiao Rao, Timothy J. Person, Dachao Li, Junsi Gu, Jeffrey M. Cogen