Distorted-helix ferroelectric liquid-crystalline optical modulat

Details Distorted-helix ferroelectric liquid-crystalline optical modulat Distorted-helix ferroelectric liquid-crystalline optical modulat

1996-10-15

1998-09-01

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349135, 349172, G02F 1141, G02F 113

Patent

active

058018018

ABSTRACT:
The invention provides optical modulation devices and displays of the DHFLCtype having a high contrast. Said modulation devices comprise a first substrate and a second substrate which are positioned substantially parallel to each other and which are provided, on their facing surfaces, with, in succession, an electrode layer and an orientation layer. This advantageous effect is achieved by using different orientation layers, the surfaced energy of the orientation layer of the first substrate being different from the surface energy of the orientation layer of the second substrate, said difference in surface energy being at least 5 mN/m. The orientation layer having the high surface energy is preferably made from rubbed polyimide, and the orientation layer having the low surface energy is preferably made from unrubbed polyorganosilsesquioxane. The optically active layer of the modulation devices in accordance with the invention exhibits a "tilted-bookshelf" structure.

REFERENCES:
patent: 4662721 (1987-05-01), Harada et al.
patent: 4882207 (1989-11-01), Coates et al.
patent: 4902106 (1990-02-01), Dijon et al.
patent: 5377033 (1994-12-01), Radcliffe
patent: 5686019 (1997-11-01), Nakamura et al.
Proceedings of the SID, vol. 31/2 (1990), p. 119 ff.

Affiliated with

Also associated with

Rating

Distorted-helix ferroelectric liquid-crystalline optical modulat does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Distorted-helix ferroelectric liquid-crystalline optical modulat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distorted-helix ferroelectric liquid-crystalline optical modulat will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-275446