Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified...
Reexamination Certificate
2004-12-17
2008-11-11
Wu, Shean C (Department: 1795)
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
C252S299610, C252S299630, C252S299660
Reexamination Certificate
active
07449222
ABSTRACT:
The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, comprising at least one pyran compound of the formula Iand one or more compounds selected from the group consisting of the compounds C1 to C9in whichR, R1, the rings A, B and P, L1, L2, X, X1, Z1, Z2, m and n are as defined in Claim1, and to electro-optical displays containing a liquid-crystalline medium of this type.
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Heckmeier Michael
Kirsch Peer
Klasen-Memmer Melanie
Luessem Georg
Poetsch Eike
Merck Patent Gesellschaft Mit Beschrankter Haftung
Millen White Zelano & Branigan P.C.
Wu Shean C
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