Patents by Inventor Chung-En CHENG

Chung-En CHENG 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: 20210382208
    Abstract: A diffusion film is provided, including a matrix material including a reaction product of following components: a polythiol, a polyolefin, and a crosslinking agent having thiol and alkenyl functional groups; a photoluminescence material including at least a quantum dot or at least a fluorescent powder; and light diffusion particles including organic polymer particles and/or inorganic particles.
    Type: Application
    Filed: March 19, 2021
    Publication date: December 9, 2021
    Inventors: Chih-Chen WU, Ying-Ming WU, Chung-En CHENG
  • Patent number: 9134564
    Abstract: A color liquid crystal display device includes a liquid crystal display element and a backlight unit. The liquid crystal display element includes a color filter having a red filter segment, a green filter segment, and a blue filter segment. The blue filter segment is prepared from a blue photosensitive resin composition. The blue photosensitive resin composition includes a pigment combination, an alkali-soluble resin, a compound having an ethylenic group, and a photoinitiator. The pigment combination includes a copper phthalocyanine-based blue pigment. The color filter has a z value ranging from 0.3 to 0.5 in a chromaticity diagram of a XYZ color system. The backlight unit is coupled to the liquid crystal display element and has a color temperature ranging from 8,000 K to 20,000 K.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: September 15, 2015
    Assignee: CHI MEI CORPORATION
    Inventors: Bo-Hsuan Lin, Jung-Pin Hsu, Chung-En Cheng
  • Patent number: 8654285
    Abstract: A color liquid crystal display device includes a liquid crystal display element and a backlight unit. The liquid crystal display element includes a color filter having a red filter segment, a green filter segment, and a blue filter segment. The red filter segment is prepared from a red photosensitive resin composition which includes a pigment combination, an alkali-soluble resin, a compound having an ethylenic group, and a photoinitiator. The pigment combination includes an azo-based red pigment and an anthraquinone-based red pigment. A weight ratio of the azo-based red pigment to the anthraquinone-based red pigment ranges from 20/80 to 80/20. The backlight unit is coupled to the liquid crystal display element and has a color temperature ranging from 6,000 K to 20,000 K.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: February 18, 2014
    Assignee: Chi Mei Corporation
    Inventors: Bo-Hsuan Lin, Jung-Pin Hsu, Chung-En Cheng, Duan-Chih Wang
  • Publication number: 20120162575
    Abstract: A color liquid crystal display device includes a liquid crystal display element and a backlight unit. The liquid crystal display element includes a color filter having a red filter segment, a green filter segment, and a blue filter segment. The blue filter segment is prepared from blue photosensitive resin composition. The blue photosensitive resin composition includes a pigment combination, an alkali-soluble resin, a compound having an ethylenic group, and a photoinitiator. The pigment combination includes a copper phthalocyanine-based blue pigment. The color filter has a z value ranging from 0.3 to 0.5 in a chromaticity diagram of a XYZ color system. The backlight unit is coupled to the liquid crystal display element and has a color temperature ranging from 8,000 K to 20,000 K.
    Type: Application
    Filed: September 23, 2011
    Publication date: June 28, 2012
    Applicant: CHI MEI CORPORATION
    Inventors: Bo-Hsuan LIN, Jung-Pin HSU, Chung-En CHENG
  • Publication number: 20120057098
    Abstract: A color liquid crystal display device includes a liquid crystal display element and a backlight unit. The liquid crystal display element includes a color filter having a red filter segment, a green filter segment, and a blue filter segment. The red filter segment is prepared from a red photosensitive resin composition which includes a pigment combination, an alkali-soluble resin, a compound having an ethylenic group, and a photoinitiator. The pigment combination includes an azo-based red pigment and an anthraquinone-based red pigment. A weight ratio of the azo-based red pigment to the anthraquinone-based red pigment ranges from 20/80 to 80/20. The backlight unit is coupled to the liquid crystal display element and has a color temperature ranging from 6,000 K to 20,000 K.
    Type: Application
    Filed: July 7, 2011
    Publication date: March 8, 2012
    Applicant: CHI MEI CORPORATION
    Inventors: Bo-Hsuan LIN, Jung-Pin HSU, Chung-En CHENG, Duan-Chih WANG