Patent ID: 7538835
Filing Date: 2009-05-26
Classification: G02F

Abstract:
1. A method of forming a viewing angle compensating plate, comprising: forming a first protection film comprising triacetyl cellulose over one side of a polarizing film; forming a second protection film comprising triacetyl cellulose over another side of a polarizing film, the second protection film having a linear thermal expansion coefficient that is substantially identical to that of the first protection film and a thickness difference between the thickness of the first protection film and the second protection film is under 20% of an average of the thickness of the first protection film and the second protection film; and forming a discotic liquid crystal layer over the second protection film, wherein forming the discotic liquid crystal layer comprises applying a solvent comprising discotic liquid crystal molecules to the second protection film, wherein the solvent comprising the discotic liquid crystal molecules is directly in contact with the second protection film.