Patents by Inventor Kun-Tsung Lu

Kun-Tsung Lu 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).

  • Method for forming optical compensating films, optical compensating films formed thereby, structure of optical compensating films, and polarizing plates
    Patent number: 8268227
    Abstract: The invention provides a method for forming optical compensating films, including: (a) providing a suspension containing clay; (b) adding a mono-functional acrylic oligomer of formula (I) in the suspension, wherein n1 is 2-25, R1 is C1-10 alkyl or H and R2 is H or CH3; (c) adding a water-soluble polymer in the suspension; (d) adding a bi-functional acrylic oligomer of formula (II) in the suspension, wherein n2 is 3-50, and R3 and R4 independently are H or CH3; (e) after the step (d), drying the suspension to form a film; (f) exposing the film under UV light to cure the film; and (g) stretching the film, wherein the film has only a negative C-plate property before the stretching and has both negative C-plate and positive A-plate properties after the stretching.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: September 18, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Kuang Chen, Shih-Ming Chen, Kun-Tsung Lu, Jia-Chih Huang, Li-Ching Wang
  • METHOD FOR FORMING OPTICAL COMPENSATING FILMS, OPTICAL COMPENSATING FILMS FORMED THEREBY, STRUCTURE OF OPTICAL COMPENSATING FILMS, AND POLARIZING PLATES
    Publication number: 20090167993
    Abstract: The invention provides a method for forming optical compensating films, including: (a) providing a suspension containing clay; (b) adding a mono-functional acrylic oligomer of formula (I) in the suspension, wherein n1 is 2-25, R1 is C1-10 alkyl or H and R2 is H or CH3; (c) adding a water-soluble polymer in the suspension; (d) adding a bi-functional acrylic oligomer of formula (II) in the suspension, wherein n2 is 3-50, and R3 and R4 independently are H or CH3; (e) after the step (d), drying the suspension to form a film; (f) exposing the film under UV light to cure the film; and (g) stretching the film, wherein the film has only a negative C-plate property before the stretching and has both negative C-plate and positive A-plate properties after the stretching.
    Type: Application
    Filed: September 30, 2008
    Publication date: July 2, 2009
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Kuang Chen, Shih-Ming Chen, Kun-Tsung Lu, Jia-Chi Huang, Li-Ching Wang