Liquid crystal display device

Details Liquid crystal display device Liquid crystal display device

1985-01-29

1987-03-24

Griffin, Donald A.

G02F 1137

Patent

active

046520880

ABSTRACT:
A liquid crystal display device wherein a nematic liquid crystal having a positive dielectric anisotropy and added with a chiral material is sealed between a pair of upper and lower substrates so as to constitute a helical structure twisted within a range between 90.degree. and 160.degree. along a direction of thickness thereof, polarizing axes or absorption axes of a pair of polarizing plates disposed on the upper and lower substrates are inclined by a predetermined angle falling within a range between 25.degree. and 65.degree. with respect to major axes of liquid crystal molecules adjacent to the upper and lower substrates, respectively, and in the direction of the twist of the liquid crystal, and a product .DELTA.n.multidot.d of a thickness d (.mu.m) and an optical anisotropy .DELTA.n of a liquid crystal layer falls within a range from 0.8 .mu.m to 1.2 .mu.m.

REFERENCES:
patent: 3947185 (1976-03-01), Maezawa
patent: 4039252 (1977-08-01), Mizuno et al.
patent: 4239345 (1980-12-01), Berreman et al.
Journal of Applied Physics, Apr. 1977, vol. 48, No. 4, pp. 1426-1431.

Affiliated with

Also associated with

Rating

Liquid crystal display device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Liquid crystal display device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid crystal display device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1350346