Patents by Inventor Guo Ping Chen

Guo Ping Chen 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: 6097463
    Abstract: The present invention provides a liquid crystal display device capable of realizing an in-pixel divided-alignment structure by as simple a process as possible. Each of alignment films respectively provided on a pair of transparent substrates includes a first homeotropic alignment film rubbed, and a second homeotropic alignment film not rubbed and deposited on the first homeotropic alignment film. The second homeotropic alignment film is deposited in a half region of each pixel. In the pair of alignment films, the unrubbed alignment film surface of the second homeotropic alignment film and the rubbed alignment film surface of the first homeotropic alignment film are arranged opposite to each other.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: August 1, 2000
    Assignee: ALPS Electric Co., Ltd.
    Inventor: Guo-Ping Chen
  • Patent number: 5663778
    Abstract: A liquid crystal device comprises a pair of substrates each having an electrode on one side thereof and a liquid crystal layer filled in a space between the paired substrates wherein the paired substrates, respectively, have, on a side contacting the liquid crystal layer, a pattern embossed layer which is made of a material having a refractive index relative to an ordinary ray substantially equal to that of a liquid crystal in the liquid crystal layer. The pattern embossed layers of the respective substrates are so arranged as being fitted with each other when contacted with each other. The method for making such a device as set out above is also described along with a liquid crystal device having irregularities formed on a pair of substrates. The irregularities are made of a material whose dielectric constant is substantially equal to that of the liquid crystal substance used.
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: September 2, 1997
    Assignee: Alps Electric Co., Ltd.
    Inventors: Tadashi Konno, Guo Ping Chen