Patents by Inventor Subo WAN

Subo WAN 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: 12170070
    Abstract: A driving method for an electronic paper display device is provided, belongs to the field of display technology, and can solve the problem of ghost in the existing electronic paper display device. A driving stage of the electronic paper display device includes a first shaking stage including a first sub-shaking stage; the balance stage is before the display stage. The method includes: based on a to-be-displayed image, applying first, second and third driving signals to first electrodes in macrostructures to display black, white and red, respectively; applying a voltage signal to the second electrodes, the voltage signal includes an alternating second pulse signal in which positive, zero and negative voltages are sequentially alternated in the first sub-shaking stage; the first and second pulse signals are equal in an absolute value of an active voltage and are opposite to each other in voltage polarity.
    Type: Grant
    Filed: March 31, 2022
    Date of Patent: December 17, 2024
    Assignees: Chongqing BOE Smart Electronics System Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yuanke Wu, Tao Pu, Yong Li, Heng Zheng, Subo Wan
  • Publication number: 20240282276
    Abstract: A driving method for an electronic paper display device is provided, belongs to the field of display technology, and can solve the problem of ghost in the existing electronic paper display device. A driving stage of the electronic paper display device includes a first shaking stage including a first sub-shaking stage; the balance stage is before the display stage. The method includes: based on a to-be-displayed image, applying first, second and third driving signals to first electrodes in macrostructures to display black, white and red, respectively; applying a voltage signal to the second electrodes, the voltage signal includes an alternating second pulse signal in which positive, zero and negative voltages are sequentially alternated in the first sub-shaking stage; the first and second pulse signals are equal in an absolute value of an active voltage and are opposite to each other in voltage polarity.
    Type: Application
    Filed: March 31, 2022
    Publication date: August 22, 2024
    Inventors: Yuanke WU, Tao PU, Yong LI, Heng ZHENG, Subo WAN