Smectic liquid crystal high-contrast control or display device

Details Smectic liquid crystal high-contrast control or display device Smectic liquid crystal high-contrast control or display device

2006-03-28

2006-03-28

Ton, Toan (Department: 2871)

Liquid crystal cells, elements and systems

With specified nonchemical characteristic of liquid crystal...

Within smectic phase

C349S172000, C349S179000, C349S180000, C349S181000, C349S182000, C349S184000

Reexamination Certificate

active

07019811

ABSTRACT:
The liquid-crystal switching or display device comprises a chiral smectic liquid-crystal mixture, where the ratio Δ/Θ of the angle between the rubbing direction and the smectic layer normal to the tilt angle in the liquid-crystal mixture is at least 0.41. Preferably, the liquid-crystal mixture has the phase sequence I-N-C and the tilt angle Θ at 25° C. is between 19° and 39°.

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