Liquid crystal display device

Details Liquid crystal display device Liquid crystal display device

2006-12-04

2009-10-27

Le, Uyen Chau N (Department: 2874)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S180000, C349S181000

Reexamination Certificate

active

07609346

ABSTRACT:
A liquid crystal display device includes a liquid crystal display panel which is configured such that a liquid crystal layer including liquid crystal molecules, which are twist-aligned at a twist angle of 70°±10°, is held between a first substrate and a second substrate, and an optical element which is provided on an outer surface of the second substrate. The optical element includes a polarizer plate, a first retardation plate which imparts a phase difference of a ½ wavelength, and a second retardation plate which imparts a phase difference of a ¼ wavelength, and a retardation value Δn·d of the liquid crystal layer is set at 200 ±30 nm, where Δn is a refractive index anisotropy of the liquid crystal layer and d is a thickness of the liquid crystal layer.

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U.S. Appl. No. 11/946,505, filed Nov. 28, 2007, Joten.
U.S. Appl. No. 11/621,299, filed Jan. 9, 2007, Joten.

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