Positive orientations of liquid crystal molecules in a multi-dom

Details Positive orientations of liquid crystal molecules in a multi-dom Positive orientations of liquid crystal molecules in a multi-dom

1994-06-24

1996-11-19

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 76, G02F 11337

Patent

active

055768628

ABSTRACT:
A liquid crystal display cell comprising a pair of substrates, a liquid crystal material sandwiched between the pair of substrates, and an optical polarization memory film provided on one or both of the substrates. The optical polarization memory film is exposed by polarized lights to produce a positive orientation means including a multiple micro domains. In the micro domains, orientation direction is uniform in each domain and substantially isotropic as a whole. The visual angular dependency is eliminated. No rubbing treatment is done, and problems caused by rubbing can be solved.

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