Ferroelectric liquid crystal apparatus

Details Ferroelectric liquid crystal apparatus Ferroelectric liquid crystal apparatus

1989-09-27

1992-01-21

Hille, Rolf

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 78, G02F 113

Patent

active

050823523

ABSTRACT:
A ferroelectric liquid crystal apparatus includes: a ferroelectric liquid crystal cell including a pair of substrates each having an electrode and an alignment film thereon, the alignment films being respectively provided with uniaxial orientation axes (preferably those provided by rugging) which are provided in parallel and in the same oblique direction of from upper right to lower left or from lower left to upper right [from lower right to upper left or from upper left to lower right], a first polarizer having a transmission axis set within a region (I) defined by a clockwise (or counterclockwise) angle of 45.degree. from the direction of the uniaxial orientation axes, a second polarizer having a transmission axis set within a region (II) defined by a clockwise (or counter-clockwise) angle of 45.degree. from the direction forming right angles with the direction of the unilaxial orientation axes, and a mechanism for adjusting an angle of the ferroelectric liquid crystal cell standing up from a horizontal plane.

REFERENCES:
patent: 4586791 (1986-05-01), Isogai et al.
patent: 4634228 (1987-01-01), Iwasaki et al.
patent: 4693562 (1987-09-01), Hasegawa et al.
patent: 4709994 (1987-12-01), Kanbe et al.
patent: 4838663 (1989-06-01), Lagerwall et al.
patent: 4879059 (1989-11-01), Hanyu et al.
patent: 4932758 (1990-06-01), Hanyu et al.
Molecular Crystals and Liquid Crystals, vol. 152, Part B, pp. 631-650, Nov. 1987.
IEEE Spectrum, vol. 22, No. 7, pp. 52-59, Jul. 1985.

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