Five-ring liquid crystal compound having CF 2 O bonding...

Details Five-ring liquid crystal compound having CF 2 O bonding... Five-ring liquid crystal compound having CF 2 O bonding...

2011-05-31

2011-05-31

Wu, Shean C (Department: 1722)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

C252S299610, C252S299630, C252S299660, C570S126000, C570S127000, C570S128000, C570S129000, C549S369000, C549S374000, C568S656000

Reexamination Certificate

active

07951433

ABSTRACT:
The invention provides a five-ring liquid crystal compound having a CF2O bonding group as a new compound having a general physical properties necessary for compounds, stability to heat, light and so forth, a wide temperature range of liquid crystal phases, a high clearing point, a good compatibility with other compounds, a large dielectric anisotropy and refractive index anisotropy, and an especially high clearing point and an especially large refractive index anisotropy, and provides a liquid crystal composition and a liquid crystal display device.

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