Patents by Inventor Ying-Cheng Tsai

Ying-Cheng Tsai 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: 8330923
    Abstract: A multi-domain liquid crystal display (LCD) includes multiple effective pixel electrodes, dummy pixel electrodes and auxiliary electrodes. The effective pixel electrodes are regularly arranged in an array of row and column, and the array of effective pixel electrodes constitute an active display area of the multi-domain LCD. The dummy pixel electrodes are provided outside the active display area and arranged at least on the side of an outermost row or outermost column of the array of effective pixel electrodes. Each auxiliary electrode is positioned next to one side of an effective pixel electrode or a dummy pixel electrode to produce fringe fields and is connected to another effective pixel electrode controlled by a preceding or a succeeding signal line to allow all effective pixel electrodes to have substantially the same coupling capacitance.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: December 11, 2012
    Assignee: Wintek Corporation
    Inventors: Wen-Chun Wang, I-Fang Wang, Ming-Chang Yu, Ying-Cheng Tsai
  • Patent number: 7728939
    Abstract: A multi-domain liquid crystal display includes a plurality of first and second picture elements having polarities opposite to each other under the same frame of an inversion drive scheme. Each first picture element has an extension part positioned next to at least one side of the adjacent second picture element, and each second picture element has an extension part positioned next to at least one side of the adjacent first picture element.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: June 1, 2010
    Assignee: Wintek Corporation
    Inventors: Ying-Cheng Tsai, Chien-Ting Chan, Hsi-Rong Han, Wen-Chun Wang
  • Patent number: 7619707
    Abstract: A multi-domain liquid crystal display includes a first and a second substrates, and a liquid crystal layer is interposed between the first and the second substrates. A first common electrode is formed on an entire surface of the first substrate. A first dielectric layer is formed on the second substrate and covers first signal lines, and a second dielectric layer is formed on the first dielectric layer and covers second signal lines. A plurality of pixel electrodes are formed on the second dielectric layer, and a plurality of second common electrodes are formed on the second substrate, where a voltage difference existing between the second common electrodes and the pixel electrode produces fringe fields.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: November 17, 2009
    Assignee: Wintek Corporation
    Inventors: Wen-Chun Wang, Chian-Chang Lee, Chin-Chang Liu, Ying-Cheng Tsai, Yi-Lin Chou
  • Publication number: 20090073368
    Abstract: A multi-domain liquid crystal display (LCD) includes multiple effective pixel electrodes, dummy pixel electrodes and auxiliary electrodes. The effective pixel electrodes are regularly arranged in an array of row and column, and the array of effective pixel electrodes constitute an active display area of the multi-domain LCD. The dummy pixel electrodes are provided outside the active display area and arranged at least on the side of an outermost row or outermost column of the array of effective pixel electrodes. Each auxiliary electrode is positioned next to one side of an effective pixel electrode or a dummy pixel electrode to produce fringe fields and is connected to another effective pixel electrode controlled by a preceding or a succeeding signal line to allow all effective pixel electrodes to have substantially the same coupling capacitance.
    Type: Application
    Filed: September 19, 2008
    Publication date: March 19, 2009
    Inventors: Wen-Chun WANG, I-Fang WANG, Ming-Chang YU, Ying-Cheng TSAI
  • Publication number: 20080018814
    Abstract: A multi-domain liquid crystal display includes a plurality of first and second picture elements having polarities opposite to each other under the same frame of an inversion drive scheme. Each first picture element has an extension part positioned next to at least one side of the adjacent second picture element, and each second picture element has an extension part positioned next to at least one side of the adjacent first picture element.
    Type: Application
    Filed: March 14, 2007
    Publication date: January 24, 2008
    Inventors: Ying-Cheng Tsai, Chien-Ting Chan, Hsi-Rong Han, Wen-Chun Wang
  • Publication number: 20070182901
    Abstract: A multi-domain liquid crystal display includes a first and a second substrates, and a liquid crystal layer is interposed between the first and the second substrates. A first common electrode is formed on an entire surface of the first substrate. A first dielectric layer is formed on the second substrate and covers first signal lines, and a second dielectric layer is formed on the first dielectric layer and covers second signal lines. A plurality of pixel electrodes are formed on the second dielectric layer, and a plurality of second common electrodes are formed on the second substrate, where a voltage difference existing between the second common electrodes and the pixel electrode produces fringe fields.
    Type: Application
    Filed: November 27, 2006
    Publication date: August 9, 2007
    Inventors: Wen-Chun Wang, Chian-Chang Lee, Chin-Chang Liu, Ying-Cheng Tsai, Yi-Lin Chou