Liquid crystal display element

Liquid crystal cells – elements and systems – Cell containing liquid crystal of specific composition – In nematic phase

Reexamination Certificate

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Details

C349S136000, C349S179000, C349S180000

Reexamination Certificate

active

07738070

ABSTRACT:
A liquid crystal display element of the present invention is arranged so that a material layer having dielectric anisotropy includes a chiral material and a liquid crystal material with a nematic liquid crystal phase, and 0.25≦d/p≦0.50 is satisfied assuming that the thickness of the material layer is d and the chiral pitch length of the liquid crystal material is p.

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patent: 2009/0147199 (2009-06-01), Kume et al.
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International Search Report for PCT/JP2006/318078 mailed Nov. 7, 2006.
U.S. Appl. No. 11/991,906, filed Mar. 12, 2008, entitled “Liquid Crystal Display Element”.
Takahashi et a., “Electrooptical Properties of Vertically Aligned Twisted Nematic Cells with Negative Dielectric Anisotropy,”Jpn. J. Appl. Phys.,vol. 36, Part 1, No. 6A, (1997), pp. 3531-3536.

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