Liquid crystal compound containing sulfone group, liquid...

Details Liquid crystal compound containing sulfone group, liquid... Liquid crystal compound containing sulfone group, liquid...

2011-04-26

2011-04-26

Wu, Shean C (Department: 1722)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

C252S299010, C252S299610, C252S299630, C252S299660, C252S299670, C549S521000, C549S551000, C560S011000, C560S012000

Reexamination Certificate

active

07931946

ABSTRACT:
Disclosed are a novel liquid crystal compound containing a sulfone group, a liquid crystal composition comprising the same, and an optical film using the same liquid crystal composition. More particularly, there are provided a liquid crystal material for a viewing angle compensation film with high quality characteristics, which can improve a contrast ratio measured at a tilt angle to the front and minimize variations in color with viewing angles in a black state, a liquid crystal composition comprising the same liquid crystal material, and a compensation film obtained from the same liquid crystal composition.

REFERENCES:
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patent: 5517350 (1996-05-01), Cabrera et al.
patent: 17113108 (2005-04-01), None
He, Guang S. et al; “Tunable two-photon pumped lashing using a holographic polymer-dispersed liquid-crystal grating as a distributed feedback element”, Applied Physics Letters (2003), 83(14), pp. 2733-2735, CODEN: APPLAB; ISSN: 0003-6951 & none See the abstract.
Kim, Sehoon et al; “Thermotrophic Polymethacrylate Bearing Sulfonylbenzoxazole-Based Multifunctional Photoactive Mesogen”, Macromolecules (2001), 34(12), pp. 3947-3953, CODEN: MAMOBX; ISSN: 0024-9297 & none See the abstract.

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