Patents by Inventor Yifei BING

Yifei BING 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: 11387424
    Abstract: An organic light emitting diode display device includes a substrate, a first defined area disposed on the substrate, a second defined area including a metal layer disposed on the substrate, a bank layer disposed on the substrate, an electron transport layer disposed above the first defined area and the second defined area, and a cathode layer disposed on the electron transport layer. The first defined area includes an anode layer, a hole injection layer, a hole transport layer, and an organic light emitting layer disposed on the substrate in sequentially. The bank layer is disposed at an edge of the first defined area and in the second defined area, and electrically isolates the first defined area and the second defined area. The electron transport layer includes a cathode contact hole used as an auxiliary cathode, which solves uneven light emission of a large-sized panel and improves display effect.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: July 12, 2022
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yifei Bing
  • Publication number: 20220052289
    Abstract: An organic light emitting diode display device includes a substrate, a first defined area disposed on the substrate, a second defined area including a metal layer disposed on the substrate, a bank layer disposed on the substrate, an electron transport layer disposed above the first defined area and the second defined area, and a cathode layer disposed on the electron transport layer. The first defined area includes an anode layer, a hole injection layer, a hole transport layer, and an organic light emitting layer disposed on the substrate in sequentially. The bank layer is disposed at an edge of the first defined area and in the second defined area, and electrically isolates the first defined area and the second defined area. The electron transport layer includes a cathode contact hole used as an auxiliary cathode, which solves uneven light emission of a large-sized panel and improves display effect.
    Type: Application
    Filed: December 26, 2019
    Publication date: February 17, 2022
    Inventor: Yifei BING
  • Publication number: 20210408176
    Abstract: An organic light-emitting display panel, a manufacturing method thereof, and an organic light-emitting display device are provided. The organic light-emitting display panel includes a substrate, a plurality of anode electrodes, a pixel definition layer, an electron transport layer, and a cathode electrode. The pixel definition layer surrounds to form a plurality of array-distributed grooves, and the anode electrodes are disposed in the grooves one by one. The pixel definition layer includes first retaining walls, second retaining walls, and third retaining walls. At least one compartment is formed among a first organic light-emitting layer, a second organic light-emitting layer, and a third organic light-emitting layer disposed on the anode electrodes.
    Type: Application
    Filed: January 14, 2020
    Publication date: December 30, 2021
    Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Yifei Bing
  • Publication number: 20210384273
    Abstract: A display panel and a method for manufacturing the display panel are provided. The display panel includes a plurality of pixel units, wherein each of the pixel units includes first sub-pixels, second sub-pixels, third sub-pixels, first pixel definition layers, and a second pixel definition layer. Each of the pixel units is enclosed by one of the first pixel definition layers into a rectangle; and the second pixel definition layer is disposed in each of the first pixel definition layers and between the first sub-pixels, the second sub-pixels, and the third sub-pixels.
    Type: Application
    Filed: July 14, 2020
    Publication date: December 9, 2021
    Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yifei BING
  • Publication number: 20210367011
    Abstract: The present application discloses an OLED display panel, a manufacturing method thereof, and an OLED display. In this application, by designing that heights of the first bank and the second bank are greater than the height of the third bank, the higher first bank and second bank can block the ink of a large amount for thicker film in the first grooves as much as possible, and in addition, it is also beneficial to block the ink of a small amount for a thinner film to prevent it from flowing toward the first grooves, so as to prevent mixing between inks in which different organic light-emitting materials are dissolved, and thus prevent OLED display panels from the problem of poor light emission such as pixel color shift and color mixing.
    Type: Application
    Filed: December 23, 2019
    Publication date: November 25, 2021
    Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yifei BING
  • Publication number: 20200168834
    Abstract: The present invention provides an OLED element and a manufacture method thereof. A cathode contact layer spaced from the anode layer is provided on the substrate of the organic light emitting diode element. The cathode layer contacts the cathode contact layer through the cathode contact hole in the pixel definition layer. As the organic light emitting diode element works, the same negative voltage is applied to the cathode layer and the cathode contact layer. The cathode contact layer can directly provide voltage and current compensations to the cathode layer, thus to prevent uneven brightness due to IR Drop appearing to a large scale organic light emitting diode display panel. The manufacturing method of the organic light emitting diode element can effectively prevent IR Drop for the organic light emitting diode element and can further improve an uneven brightness of an organic light emitting diode display panel.
    Type: Application
    Filed: September 6, 2018
    Publication date: May 28, 2020
    Inventors: Yifei BING, Tsungyuan WU, Xiaoling WU