Patents by Inventor Chun Chi Thomas Wan

Chun Chi Thomas Wan 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).

  • Methods and apparatus for backlighting dual modulation display devices
    Patent number: 9299293
    Abstract: Methods and apparatus are provided for backlighting a dual modulation display device. Each type of light source comprises a multi-primary light source having two or more primary color light emitters having different primary color characteristics from corresponding primary color emitters of other types of light source. Methods may comprise receiving illumination target values for a plurality of locations on the front modulator corresponding to the plurality of light sources, each of the locations on the front modulator configured to be illuminated by two or more of the plurality of light sources, determining primary color drive values source based on the primary color characteristics for that primary color and the illumination target value for the location corresponding to that light source, and driving the primary color light emitters or each type of light source based on the primary color drive values.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: March 29, 2016
    Assignee: Dobly Laboratories Licensing Corporation
    Inventors: Chun Chi Thomas Wan, Giorgio Giaretta, Lewis Johnson, Ka Wing Terence Lau, Christopher Orlick, Neil Messmer
  • METHODS AND APPARATUS FOR BACKLIGHTING DUAL MODULATION DISPLAY DEVICES
    Publication number: 20140253609
    Abstract: Methods and apparatus are provided for backlighting a dual modulation display device. Each type of light source comprises a multi-primary light source having two or more primary color light emitters having different primary color characteristics from corresponding primary color emitters of other types of light source. Methods may comprise receiving illumination target values for a plurality of locations on the front modulator corresponding to the plurality of light sources, each of the locations on the front modulator configured to be illuminated by two or more of the plurality of light sources, determining primary color drive values source based on the primary color characteristics for that primary color and the illumination target value for the location corresponding to that light source, and driving the primary color light emitters or each type of light source based on the primary color drive values.
    Type: Application
    Filed: October 12, 2012
    Publication date: September 11, 2014
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Chun Chi Thomas Wan, Giorgio Giaretta, Lewis Johnson, Ka Wing Terence Lau, Christopher Orlick, Neil Messmer