Liquid crystal display having particular optical...

Details Liquid crystal display having particular optical... Liquid crystal display having particular optical...

2006-02-28

2009-02-24

Qi, Mike (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S119000, C349S121000

Reexamination Certificate

active

07495730

ABSTRACT:
A liquid crystal display comprising a pair of polarizing films, a liquid crystal cell placed between the polarizing films, and an optical compensatory sheet placed between the liquid crystal cell and at least one of the polarizing films, wherein the optical compensatory sheet comprises an optically anisotropic layer (1) and an optically anisotropic layer (2), and satisfies the following condition: 2.0≦(Δn×d)/Rth(2)≦5.0 wherein Δn is a birefringence of a liquid crystal molecule in the liquid crystal cell, d is a thickness (nm) of the liquid crystal cell, and Rth(2) is an Rth value of the optically anisotropic layer (2).

REFERENCES:
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patent: 6922222 (2005-07-01), Miyachi et al.
patent: 7315341 (2008-01-01), Nimura et al.
patent: 7318951 (2008-01-01), Nimura et al.
patent: 7324177 (2008-01-01), Kawanishi et al.
patent: 7379131 (2008-05-01), Ito et al.
patent: 2002/0045015 (2002-04-01), Ito

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