Nematic liquid crystal mixtures and a matrix liquid crystal disp

Details Nematic liquid crystal mixtures and a matrix liquid crystal disp Nematic liquid crystal mixtures and a matrix liquid crystal disp

1997-03-12

2000-07-04

Kelly, C. H.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229966, 349186, C09K 1930, C09K 1912, G02F 113

Patent

active

060834234

ABSTRACT:
The invention relates to a nematic liquid crystal mixture having a positive dielectric anisotropy .DELTA..epsilon. of at least +4 and a birefringence .DELTA.n of at least 0.12, characterized in that the mixtures comprises one or more components having the core structure ##STR1## wherein L.sup.1, L.sup.2, Y and Z are each independently of one another H or F, one of Q.sup.1 and Q.sup.2 is 1,4-phenylene, 3-fluoro-1,4-phenylene or 3,5-difluoro-1,4-phenylene and the other residue Q.sup.1 or Q.sup.2 is --CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 -- or -- if at least one of L.sup.1, L.sup.2, Y and Z denotes F-- also a single bond, whereby this core structure can be optionally further fluorinated in the benzene rings.

REFERENCES:
patent: 4849130 (1989-07-01), Dabrowski et al.
patent: 5047170 (1991-09-01), Huunh-ba et al.
patent: 5064567 (1991-11-01), Funada et al.
patent: 5122295 (1992-06-01), Weber et al.
patent: 5286411 (1994-02-01), Rieger et al.
patent: 5302313 (1994-04-01), Goto et al.
patent: 5308538 (1994-05-01), Weber et al.
patent: 5308541 (1994-05-01), Hittich et al.
patent: 5308542 (1994-05-01), Poetsch et al.
patent: 5368772 (1994-11-01), Rieger et al.
patent: 5387395 (1995-02-01), Weber et al.
R. Dabrowski et al., Liquid Crystals, vol. 5, No. 1, pp. 209-216, 1989.
V. Reiffenrath et al., SPIE, vol. 1257 Liquid Crystal Displays and Applications (1990) pp. 84-94.

Affiliated with

Also associated with

Rating

Nematic liquid crystal mixtures and a matrix liquid crystal disp does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Nematic liquid crystal mixtures and a matrix liquid crystal disp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nematic liquid crystal mixtures and a matrix liquid crystal disp will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1482953