Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified...
Reexamination Certificate
2005-11-08
2005-11-08
Wu, Shean C. (Department: 1756)
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
C252S299630, C252S299660, C252S299670, C252S299610
Reexamination Certificate
active
06962733
ABSTRACT:
The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it comprises one or more compounds of the formula Iin which R1, L1and L2are as defined in claim1.
REFERENCES:
patent: 6007740 (1999-12-01), Andou et al.
patent: 6187223 (2001-02-01), Andou et al.
patent: 6315922 (2001-11-01), Takeshita et al.
patent: 6325949 (2001-12-01), Takeshita et al.
patent: 6497929 (2002-12-01), Miyairi et al.
Heckmeier Michael
Hock Christian
Luessem Georg
Reiffenrath Volker
Saito Izumi
Merck Patent GmbH
Millen White Zelano & Branigan P.C.
Wu Shean C.
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