Liquid crystal device and method for producing the same

Details Liquid crystal device and method for producing the same Liquid crystal device and method for producing the same

1994-06-01

1996-09-03

Fahmy, Wael M.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 51, 359 52, 359 81, G02F 11350, G02F 11339

Patent

active

055529135

ABSTRACT:
In a liquid crystal device using a ferroelectric liquid crystal, in the case that a liquid crystal material is injected in a space between a pair of substrates (at least one of the substrates having an alignment film), a liquid crystal mixture of a liquid crystal material and an uncured resin material having a hydrophilicity is injected in the space from an injection inlet formed between the substrates. By the above process, the uncured resin material is remained in the vicinity of the injection inlet, and the space is filled with the liquid crystal material. Subsequently, the resin material is cured to seal the injection inlet. Further, a space between a pair of the substrates is filled with a mixture of the liquid crystal material, the uncured resin material and spacer particles, the liquid crystal material is oriented, the uncured resin material is precipitated from the mixture and cured, and the liquid crystal material and the spacer particles are removed. Subsequently, the liquid crystal material (or a mixture of the liquid crystal material and the uncured resin material) is again injected in the space, the liquid crystal material is oriented, and the uncured resin material is precipitated to be cured.

REFERENCES:
patent: 4563059 (1986-01-01), Clark et al.
patent: 4640583 (1987-02-01), Hoshikawa et al.

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