Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2006-07-18
2006-07-18
Parker, Kenneth (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S117000
Reexamination Certificate
active
07079208
ABSTRACT:
A method of improving the viewing angle of a vertically-aligned liquid crystal display device is presented. The method involves designing a uniaxial compensation film to provide a retardation value of 200 nm or less for light having a wavelength of about 550 nm. Using this uniaxial compensation film, a display device can be built by obtaining a liquid crystal panel with liquid crystal molecules contained between glass substrates, coupling the uniaxial compensation film to at least one of the glass substrates, and coupling a polarization film and electrodes to the compensation film. Preferably, the uniaxial compensation film has a thickness less than or equal to 50 microns. Where there are multiple compensation films, the total thickness and the total retardation values should be considered.
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Bahadur, Liquid Crystals 1990, World Scientific, vol. 1, p. 189.
Office Action mailed on Oct. 12, 2005 corresponding to the related European Patent Application No. 03 254 414.0-2205.
Kim Sang-Il
Kim Tae-Hwan
Yang Young-Chol
Chung David Y.
DLA Piper Rudnick Gray Cary US LLP
Parker Kenneth
Samsung Electronics Co., LLC
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