Liquid-crystalline medium

Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified...

Reexamination Certificate

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C252S299630, C252S299660, C252S299670, C252S299610

Reexamination Certificate

active

06964794

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.

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