Patents by Inventor Duan-Chih WANG

Duan-Chih 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).

  • Patent number: 9568763
    Abstract: The invention relates to a photosensitive resin composition that has the advantages of high developability, good hardness, and good sputtered resistance. The invention also provides a method for manufacturing a color filter, color filter and a liquid crystal display device. The photosensitive resin composition comprises an alkali-soluble resin (A), a compound containing an ethylenically unsaturated group (B), a photoinitiator (C), an organic solvent (D), a pigment (E), and a compound (F).
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: February 14, 2017
    Assignee: CHI MEI CORPORATION
    Inventors: Duan-Chih Wang, Jung-Pin Hsu
  • Patent number: 9529116
    Abstract: A photosensitive resin composition and application of the same are provided. The photosensitive resin composition comprises an alkali-soluble resin (A), a compound (B) containing vinyl unsaturated group(s), a photo initiator (C), an organic solvent (D), a pigment (E) and a metal chelating agent (F). During a pixel process with an omission of a prebake step, the photosensitive resin composition, which is added with the metal chelating agent (F), can be formed to pixels that is adhered tightly to a substrate.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: December 27, 2016
    Assignee: CHI MEI CORPORATION
    Inventors: Bo-Hsuan Lin, Jung-Pin Hsu, Duan-Chih Wang
  • Patent number: 9081142
    Abstract: The invention relates to a blue photosensitive resin composition, and it has the advantage of good developing-resistance, good ageing stability of sensitivity and good contrast. The invention also provides a method for producing a color filter, a color filter and a liquid crystal display device.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: July 14, 2015
    Assignee: CHI MEI CORPORATION
    Inventors: Jung-Pin Hsu, Duan-Chih Wang
  • Publication number: 20150041735
    Abstract: The invention relates to a photosensitive resin composition that has the advantages of high developability, good hardness, and good sputtered resistance. The invention also provides a method for manufacturing a color filter, color filter and a liquid crystal display device. The photosensitive resin composition comprises an alkali-soluble resin (A), a compound containing an ethylenically unsaturated group (B), a photoinitiator (C), an organic solvent (D), a pigment (E), and a compound (F).
    Type: Application
    Filed: July 29, 2014
    Publication date: February 12, 2015
    Inventors: DUAN-CHIH WANG, JUNG-PIN HSU
  • Publication number: 20140346416
    Abstract: The invention relates to a blue photosensitive resin composition, and it has the advantage of good developing-resistance, good ageing stability of sensitivity and good contrast. The invention also provides a method for producing a color filter, a color filter and a liquid crystal display device.
    Type: Application
    Filed: May 19, 2014
    Publication date: November 27, 2014
    Applicant: CHI MEI CORPORATION
    Inventors: JUNG-PIN HSU, DUAN-CHIH WANG
  • Publication number: 20140124716
    Abstract: A photosensitive resin composition and application of the same are provided. The photosensitive resin composition comprises an alkali-soluble resin (A), a compound (B) containing vinyl unsaturated group(s), a photo initiator (C), an organic solvent (D), a pigment (E) and a metal chelating agent (F). During a pixel process with an omission of a prebake step, the photosensitive resin composition, which is added with the metal chelating agent (F), can be formed to pixels that is adhered tightly to a substrate.
    Type: Application
    Filed: October 28, 2013
    Publication date: May 8, 2014
    Applicant: Chi Mei Corporation
    Inventors: Bo-Hsuan LIN, Jung-Pin HSU, Duan-Chih WANG
  • 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: 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