Patents by Inventor Ching-Yu Chao

Ching-Yu Chao 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).

  • Method for manufacturing a diffuser for a backlight module
    Patent number: 7258966
    Abstract: A method for manufacturing a diffuser for a backlight module is disclosed. The method includes providing a transparent substrate; forming a first transparent photoresist layer on the transparent substrate; spreading a plurality of masking particles on the first transparent photoresist layer; exposing and developing the first transparent photoresist layer; removing the masking particles; etching the exposed region of the first transparent photoresist layer to form a first scattering array; and optionally forming a passivation layer on the first transparent photoresist layer.
    Type: Grant
    Filed: January 12, 2004
    Date of Patent: August 21, 2007
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Ching-Yu Chao, Wen-Jiunn Hsieh
  • Method for manufacturing a diffuser for a backlight module
    Publication number: 20040253546
    Abstract: A method for manufacturing a diffuser for a backlight module is disclosed. The method includes providing a transparent substrate; forming a first transparent photoresist layer on the transparent substrate; spreading a plurality of masking particles on the first transparent photoresist layer; exposing and developing the first transparent photoresist layer; removing the masking particles; etching the exposed region of the first transparent photoresist layer to form a first scattering array; and optionally forming a passivation layer on the first transparent photoresist layer.
    Type: Application
    Filed: January 12, 2004
    Publication date: December 16, 2004
    Applicant: Chunghwa Picture Tubes, Ltd.
    Inventors: Ching-Yu Chao, Wen-Jiunn Hsieh