Patents by Inventor Shu Fang Han

Shu Fang Han 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).

  • Twisted nematic micropolarizer and its method of manufacturing
    Patent number: 7385669
    Abstract: The invention is a method for creating a micropolarizer, including providing a first plate having a first and a second surface, providing a second plate having a first and a second surface. Then coating a polyimide on each of the first surface of the two plates followed by rubbing the polyimide coated upon the first surface of the first plate along a predetermined direction and rubbing the polyimide coated upon the first surface of the second plate along a direction having a predetermined angle in relation to the predetermined direction. An alignment process includes aligning the first plate and the second plate having the first surface of the first plate and the first surface of the second plate facing each other thereby creating a space there between. In conclusion there is a filling of a liquid crystal material in the space whereby a cell, or film is created.
    Type: Grant
    Filed: March 21, 2005
    Date of Patent: June 10, 2008
    Assignee: Vrex, Inc.
    Inventors: Zongkai Wang, Shu Fang Han, Adam W. Divelbiss, David C. Swift
  • Twisted nematic micropolarizer and its method of manufacturing
    Patent number: 6887729
    Abstract: The invention is a method for creating a micropolarizer, including providing a first plate having a first and a second surface, providing a second plate having a first and a second surface. Then coating a polyimide on each of the first surface of the two plates followed by rubbing the polyimide coated upon the first surface of the first plate along a predetermined direction and rubbing the polyimide coated upon the first surface of the second plate along a direction having a predetermined angle in relation to the predetermined direction. An alignment process includes aligning the first plate and the second plate having the first surface of the first plate and the first surface of the second plate facing each other thereby creating a space there between. In conclusion there is a filling of a liquid crystal material in the space whereby a cell, or film is created.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: May 3, 2005
    Assignee: Reveo, Inc.
    Inventors: Zongkai Wang, Shu Fang Han, Adam W. Divelbiss, David C. Swift
  • Twisted nematic micropolarizer and its method of manufacturing
    Publication number: 20030137620
    Abstract: The invention is a method for creating a micropolarizer, including providing a first plate having a first and a second surface, providing a second plate having a first and a second surface. Then coating a polyimide on each of the first surface of the two plates followed by rubbing the polyimide coated upon the first surface of the first plate along a predetermined direction and rubbing the polyimide coated upon the first surface of the second plate along a direction having a predetermined angle in relation to the predetermined direction. An alignment process includes aligning the first plate and the second plate having the first surface of the first plate and the first surface of the second plate facing each other thereby creating a space there between. In conclusion there is a filling of a liquid crystal material in the space whereby a cell, or film is created.
    Type: Application
    Filed: October 3, 2002
    Publication date: July 24, 2003
    Inventors: Zongkai Wang, Shu Fang Han, Adam W. Divelbiss, David C. Swift