Patents Examined by Nathieu D. Vargot
  • Lightguide and method for manufacturing the same
    Patent number: 6680010
    Abstract: A lightguide having either a built-in prism sheet or a built-in diffuser sheet is disclosed. The lightguide includes: a prism sheet having a plane surface and a surface with a plurality of patterned microlens; a transparent wedge having a cross-section of trapezoid; and a binder layer sandwiched between said plane surface of said prism sheet and said transparent wedge. A method for manufacturing the lightguide is also disclosed here.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: January 20, 2004
    Assignee: Au Optronics Corp.
    Inventors: Guang-Tau Sung, Chen-Hua Liu