Patents by Inventor Zhang Zhikuan

Zhang Zhikuan 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).

  • Patent number: 11210971
    Abstract: LED packages and LED displays utilizing the LED packages are disclosed where the peak emission of the LED display can be tilted or shifted to customize its peak emission to the mounting height or location of the LED display. One embodiment of an LED display comprises a plurality of LED package where the peak emission from at least some of the LED packages is tilted off the package centerline. The LED packages are mounted within the display in such a way as to generate an image having a peak emission that is tilted off the perpendicular emission direction of the display.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: December 28, 2021
    Assignee: Cree Huizhou Solid State Lighting Company Limited
    Inventors: Chi Keung Chan, Yue Kwong Lau, Zhang Zhikuan, Yan Xingtao
  • Patent number: 8350370
    Abstract: The present invention is directed to LED packages and LED displays utilizing LED packages where the peak emission of the LED displays can exhibit improved emission characteristics. In some embodiments the improved characteristics include a wider horizontal emission angle for the LED packages according to the present invention, which results in improved emission characteristics for the LED display such as a wider far field pattern. This provides improved picture intensity and quality when viewing the display at different horizontal viewing angles. Different embodiments also provide for improved emission characteristics for LED packages emitting different colors of light when viewing at different vertical angles. In one embodiment the red and green LED packages can have emission patterns that are substantially the same at different vertical viewing angles within a range. This helps the colors of the display appear consistent at those angles.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: January 8, 2013
    Assignee: Cree Huizhou Opto Limited
    Inventors: Chi Keung Chan, Zhang Zhikuan, Yue Kwong Lau, Hao Liu, Xiang Fei, Meigui Luo, Juzuo Sheng
  • Publication number: 20110186865
    Abstract: The present invention is directed to LED packages and LED displays utilizing LED packages where the peak emission of the LED displays can exhibit improved emission characteristics. In some embodiments the improved characteristics include a wider horizontal emission angle for the LED packages according to the present invention, which results in improved emission characteristics for the LED display such as a wider far field pattern. This provides improved picture intensity and quality when viewing the display at different horizontal viewing angles. Different embodiments also provide for improved emission characteristics for LED packages emitting different colors of light when viewing at different vertical angles. In one embodiment the red and green LED packages can have emission patterns that are substantially the same at different vertical viewing angles within a range. This helps the colors of the display appear consistent at those angles.
    Type: Application
    Filed: January 29, 2010
    Publication date: August 4, 2011
    Inventors: Chi Keung Chan, Zhang Zhikuan, Yue Kwong Lau, Hao Liu, Xiang Fei, Meigui Luo, Juzuo Sheng
  • Publication number: 20110001149
    Abstract: LED packages and LED displays utilizing the LED packages are disclosed where the peak emission of the LED display can be tilted or shifted to customize its peak emission to the mounting height or location of the LED display. One embodiment of an LED display comprises a plurality of LED package where the peak emission from at least some of the LED packages is tilted off the package centerline. The LED packages are mounted within the display in such a way as to generate an image having a peak emission that is tilted off the perpendicular emission direction of the display.
    Type: Application
    Filed: July 6, 2009
    Publication date: January 6, 2011
    Inventors: Chi Keung Chan, Yue Kwong Lau, Zhang Zhikuan, Yan Xingtao