Patents by Inventor Yung-Chih Yu

Yung-Chih Yu 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).

  • Publication number: 20110254868
    Abstract: A field emission lamp is disclosed, which comprises: a substrate, a plurality of first field emission units, a plurality of second field emission units, and a driving control unit. The plurality of first field emission units and the plurality of second field emission units are located on the substrate. Besides, the first phosphor layer of the plurality of first field emission units has a first color temperature. The second phosphor layer of the plurality of second field emission units has a second color temperature, wherein the first color temperature is higher than the second color temperature. Moreover, the driving control unit drives and controls the plurality of first field emission units and the plurality of second field emission units based on a predetermined driving mode, for modulating the light emission mode of the field emission lamp and the color temperature of the mixed light emitted from the field emission lamp.
    Type: Application
    Filed: June 8, 2010
    Publication date: October 20, 2011
    Applicant: Tatung Company
    Inventors: Chi-Tsung Lo, Tzung-Han Yang, Yung-Chih Yu, Ching-Hsuang Cheng
  • Publication number: 20110043097
    Abstract: A field emission lamp, capable of preventing the degradation and the non-uniformly distribution of the light intensity of the emitted light, even after long-term usage of the field emission lamp, is disclosed. The anode of the disclosed field emission lamp is not required to be transparent. The disclosed field emission lamp comprises: a transparent shell; an anode unit set inside the transparent shell; a cathode unit set between the anode unit and the transparent shell; and a phosphor layer set above the anode unit. The cathode unit is apart from the phosphor layer with a certain distance. The phosphor layer and the anode unit are both surrounded by the cathode unit.
    Type: Application
    Filed: December 8, 2009
    Publication date: February 24, 2011
    Applicant: Tatung Company
    Inventors: Wen-Hsien Cheng, Tzung-Han Yang, Yung-Chih Yu, Ching-Hsuang Cheng
  • Publication number: 20080157647
    Abstract: A field emission display device (FED) is disclosed. The FED disclosed herein includes: a upper substrate, an anode layer, a phosphor layer, a lower substrate, at least one cathode, at least one electron emitter, and an partition plate set located between the upper substrate and the lower substrate. The partition plate set includes at least one nonmetal dielectric plate having plural holes, at least one insulation layer, and at least one gate. The FED of the present invention can simplify the process and reduce the damage caused by the manufacturing process, effectively increase the number of the electrons bombarding the phosphor layer, and increase the brightness and contrast ratio of the pixels.
    Type: Application
    Filed: July 18, 2007
    Publication date: July 3, 2008
    Applicant: Tatung Company
    Inventors: Tzung-Han Yang, Yung-Chih Yu, Hung-Yuan Li