Patents by Inventor Ya-Hua Ko

Ya-Hua Ko 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).

  • Backlight source having first and second electroluminescence devices
    Patent number: 7857472
    Abstract: A backlight source has different luminescence types of electroluminescence devices and coordinates at least one of the arrangement positions and the arrangement spacing of the electroluminescence devices to improve the brightness uniformity of the backlight source and make the mixed light better. Moreover, because of the brightness uniformity promotion, the overall thickness of backlight module can be reduced.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: December 28, 2010
    Assignee: Au Optronics Corp.
    Inventors: Ya-Hua Ko, Chih-Kuang Chen, Hsin-Wu Lin
  • Side-Type Backlight Module and Operating Method Thereof
    Publication number: 20100072912
    Abstract: A side-type backlight module includes a light guide plate and a plurality of light emitting diode (LED) sources. The light guide plate includes a side. The LED sources are disposed on the side, in which two successive LED sources are spaced by a pitch. It is varied to arrange each pitch between two successive LED sources. Moreover, a method for operating the side-type backlight module is disclosed in the specification.
    Type: Application
    Filed: July 13, 2009
    Publication date: March 25, 2010
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Yu-Chang Wu, Hsin-Wu Lin, Ya-Hua Ko
  • Backlight source
    Publication number: 20080042555
    Abstract: A backlight source has different luminescence types of electroluminescence devices and coordinates at least one of the arrangement positions and the arrangement spacing of the electroluminescence devices to improve the brightness uniformity of the backlight source and make the mixed light better. Moreover, because of the brightness uniformity promotion, the overall thickness of backlight module can be reduced.
    Type: Application
    Filed: June 1, 2007
    Publication date: February 21, 2008
    Inventors: Ya-Hua Ko, Chih-Kuang Chen, Hsin-Wu Lin
  • Backlight module
    Publication number: 20060203512
    Abstract: A backlight module includes a reflective plate and a light source. The reflective plate comprises a plurality of reflective regions, and the light source is disposed at a side of the reflective plate. Diffusivity of the reflective regions away from the light source is different from diffusivity of the reflective regions near the light source.
    Type: Application
    Filed: June 17, 2005
    Publication date: September 14, 2006
    Inventors: Ya-Hua Ko, Hsin-Wu Lin