Liquid crystal composition and liquid crystal display device

Details Liquid crystal composition and liquid crystal display device Liquid crystal composition and liquid crystal display device

2008-09-12

2009-11-17

Wu, Shean C (Department: 1795)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

C252S299630, C252S299660

Reexamination Certificate

active

07618691

ABSTRACT:
A liquid crystal composition having a negative dielectric anisotropy that includes two components, wherein the first component is at least one compound selected from the group of compounds represented by formulas (1-1) and (1-2), and the second component is at least one compound selected from the group of compounds represented by formulas (2-1) to (2-3):wherein, for example, R1, R2, R3and R4are each alkyl having 1 to 12 carbons; X1and X2are each fluorine; ring A, ring B, ring C, ring D, ring E, ring F and ring G are each 1,4-cyclohexylene or 1,4-phenylene; and Z1is a single bond.

REFERENCES:
patent: 10-237004 (1998-09-01), None
patent: 2007-002132 (2007-01-01), None

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