Process for producing ferroelectric liquid crystal device

Details Process for producing ferroelectric liquid crystal device Process for producing ferroelectric liquid crystal device

1996-04-09

1999-03-09

Sikes, William L.

Liquid crystal cells, elements and systems

Nominal manufacturing methods or post manufacturing...

Changing liquid crystal phase

349184, 349172, G02F 113

Patent

active

058808043

ABSTRACT:
An improved method for achieving a defect-free and uniform liquid crystal alignment in a process for the production of a ferroelectric liquid crystal display device. A process for producing a ferroelectric liquid crystal display device containing a ferroelectric liquid crystal showing at least an N* phase and an SmC* phase and an organic polymer film or an oblique vapor-deposition film of an inorganic substance serving as an alignment layer is provided by aligning the liquid crystal by cooling the liquid crystal once to a temperature region of a phase which resides in the lower temperature region than the N* phase, and then heating it to a temperature region of an N* phase, or by aligning the liquid crystal by applying an electric field in the N* phase.

REFERENCES:
patent: 4973373 (1990-11-01), Hashimoto et al.
patent: 5078477 (1992-01-01), Jono et al.
patent: 5124827 (1992-06-01), Davey

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