Patents by Inventor Chien-Wuan Wang

Chien-Wuan Wang 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).

  • HIGH EFFICIENT PHOSPHOR-CONVERTED LIGHT EMITTING DIODE
    Publication number: 20110210361
    Abstract: A light-emitting device and manufacturing method thereof are disclosed. The light-emitting device includes a substrate, a semiconductor light-emitting structure, a filter layer, and a fluorescent conversion layer. The method comprises forming a semiconductor light-emitting structure over a substrate, forming a filter layer over the semiconductor light-emitting structure, and forming a fluorescent conversion layer over the filter layer.
    Type: Application
    Filed: May 5, 2011
    Publication date: September 1, 2011
    Applicant: EPISTAR CORPORATION
    Inventors: Chien-Wuan WANG, Chih-Chiang Lu, Min-Hsun Hsieh
  • Flat light-emitting apparatus
    Patent number: 7934855
    Abstract: A flat light-emitting apparatus includes a light-emitting element for radiating visible light consisting of a first-wavelength light with a wavelength substantially not less than 600 nm and a second-wavelength light with a wavelength substantially not greater than 480 nm, a wavelength conversion material for generating a third-wavelength light when irradiated by the second-wavelength light, a first color filter for the passing of the first-wavelength light, a second color filter for the passing of the second-wavelength light, and a third color filter for the passing of the third-wavelength light.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: May 3, 2011
    Assignee: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Chien-Wuan Wang
  • HIGH EFFICIENT PHOSPHOR-CONVERTED LIGHT EMITTING DIODE
    Publication number: 20100200873
    Abstract: A light-emitting device and manufacturing method thereof are disclosed. The light-emitting device includes a substrate, a semiconductor light-emitting structure, a filter layer, and a fluorescent conversion layer. The method comprises forming a semiconductor light-emitting structure over a substrate, forming a filter layer over the semiconductor light-emitting structure, and forming a fluorescent conversion layer over the filter layer.
    Type: Application
    Filed: April 21, 2010
    Publication date: August 12, 2010
    Applicant: EPISTAR CORPORATION
    Inventors: Chien-Wuan Wang, Chih-Chiang Lu, Min-Hsun Hsieh
  • Flat light-emitting apparatus
    Publication number: 20070091599
    Abstract: A flat light-emitting apparatus includes a light-emitting element for radiating visible light consisting of a first-wavelength light with a wavelength substantially not less than 600 nm and a second-wavelength light with a wavelength substantially not greater than 480 nm, a wavelength conversion material for generating a third-wavelength light when irradiated by the second-wavelength light, a first color filter for the passing of the first-wavelength light, a second color filter for the passing of the second-wavelength light, and a third color filter for the passing of the third-wavelength light.
    Type: Application
    Filed: October 18, 2006
    Publication date: April 26, 2007
    Applicant: EPISTAR CORPORATION
    Inventors: Min-Hsun Hsieh, Chien-Wuan Wang