Liquid crystal display apparatus having a random orientation ali

Optical: systems and elements – Holographic system or element – Using a hologram as an optical element

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359 76, 359 75, G02F 11337

Patent

active

054465699

ABSTRACT:
A liquid crystal display apparatus includes: a pair of substrates held at a distance; a pair of electrodes formed on opposing inner faces of the substrates, respectively; alignment films formed on the opposing faces to cover the pair of electrodes, respectively, the alignment films having capability to align a liquid crystal in a horizontal orientation and capability to align the liquid crystal in a random orientation at a predetermined temperature or more; and a chiral nematic liquid crystal layer interposed between the pair of alignment film, the chiral nematic liquid crystal layer having a plurality of microscopic domains, each of the microscopic domains having the liquid crystal molecules aligned uniformly in the vicinity of the alignment films, the liquid crystal molecules in different microscopic regions being arranged in different directions with respect to one another.

REFERENCES:
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patent: 5004324 (1991-04-01), Leenhouts et al.
patent: 5023013 (1991-06-01), Yamazaki et al.
patent: 5091794 (1992-02-01), Suzuki
Y. Toko, et al., "P-49: TN-LCDs Fabricated by Non-Rubbing Showing Wide and Homogeneous Viewing Angular Characteristics and Excellent Voltage Holding Ratio", SID 93 Digest, pp. 622-625 (May 18-20, 1993).

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