Liquid-crystalline medium having high birefringence

Details Liquid-crystalline medium having high birefringence Liquid-crystalline medium having high birefringence

2006-08-15

2006-08-15

Wu, Shean C. (Department: 1756)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

C252S299630, C252S299660

Reexamination Certificate

active

07090899

ABSTRACT:
Liquid-crystalline medium having a dielectric anisotropy Δε of ≧3, comprising compounds of the general formula (I),in which R is as defined herein, are suitable for use as liquid-crystalline media for, e.g., IPS, MLC, TN or STN displays, but in particular for LCoS displays. The media have very high specific resistance values, low threshold voltages, short response times and high birefringence values Δn, while maintaining other boundary conditions.

REFERENCES:
patent: 5599480 (1997-02-01), Tarumi et al.
patent: 6348244 (2002-02-01), Miyazawa et al.
patent: 2003/0222245 (2003-12-01), Klasen-Memmer et al.
patent: 10152831 (2002-07-01), None

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