Patents by Inventor Yi-Rong Qiu

Yi-Rong Qiu 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).

  • OPTICAL SHEET
    Publication number: 20090033830
    Abstract: An optical sheet includes a substrate and a plurality of convex lens structures. The substrate has a first surface and a second surface, which are disposed opposite to each other. The convex lens structures are disposed on the second surface, and each of the convex lens structure has a cambered surface. The cambered surface fits a curve surface equation of Ax2+By2+Cxy+Dx+Ey+F=0, wherein x and y are variables and A, B, C, D, E and F are constants.
    Type: Application
    Filed: December 18, 2007
    Publication date: February 5, 2009
    Inventors: Yaw-Huei TSAI, Ming-Hsuan Liu, Yi-Rong Qiu
  • DIFFUSION BRIGHTNESS ENHANCEMENT SHEET
    Publication number: 20090022953
    Abstract: A diffusion brightness enhancement sheet includes a substrate and a prism structure. The substrate has a first surface and a second surface, which are disposed opposite to each other The substrate has a diffusion material, and the prism structure is disposed over the second surface.
    Type: Application
    Filed: January 31, 2008
    Publication date: January 22, 2009
    Inventors: Yaw-Huei Tsai, Ming-Hsuan Liu, Yi-Rong Qiu