Patents by Inventor Ruifen FU

Ruifen FU 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).

  • Composite membrane, touchpad and display device
    Patent number: 11536876
    Abstract: Provided are a composite membrane, a touchpad and a display device. The composite membrane includes a first graded-refractive-index layer, a first dielectric layer and a second graded-refractive-index layer which are stacked in sequence; where the first graded-refractive-index layer includes at least two first sub-layers, and the second graded-refractive-index layer includes at least two second sub-layers; in a direction from the first graded-refractive-index layer to the first dielectric layer, refractive indexes of first sub-layers sequentially increase, and refractive indexes of second sub-layers sequentially decrease; a refractive index of a first sub-layer adjacent to the first dielectric layer is less than or equal to a refractive index of the first dielectric layer; and a refractive index of a second sub-layer adjacent to the first dielectric layer is less than or equal to the refractive index of the first dielectric layer.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: December 27, 2022
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Yuefeng Gu, Jun Zhou, Ruifen Fu, Jiandong Wang
  • COMPOSITE MEMBRANE, TOUCHPAD AND DISPLAY DEVICE
    Publication number: 20210349241
    Abstract: Provided are a composite membrane, a touchpad and a display device. The composite membrane includes a first graded-refractive-index layer, a first dielectric layer and a second graded-refractive-index layer which are stacked in sequence; where the first graded-refractive-index layer includes at least two first sub-layers, and the second graded-refractive-index layer includes at least two second sub-layers; in a direction from the first graded-refractive-index layer to the first dielectric layer, refractive indexes of first sub-layers sequentially increase, and refractive indexes of second sub-layers sequentially decrease; a refractive index of a first sub-layer adjacent to the first dielectric layer is less than or equal to a refractive index of the first dielectric layer; and a refractive index of a second sub-layer adjacent to the first dielectric layer is less than or equal to the refractive index of the first dielectric layer.
    Type: Application
    Filed: June 30, 2020
    Publication date: November 11, 2021
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Yuefeng GU, Jun ZHOU, Ruifen FU, Jiandong WANG