Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1995-03-29
1997-11-11
Acquah, Samuel A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528125, 528128, 528170, 528172, 528173, 528176, 528185, 528188, 528220, 528229, 528350, 428 1, 4284735, 359 36, 359 75, C08G 7310, B32B 2700, G02F 113, G02F 11337
Patent
active
056865589
ABSTRACT:
The invention relates to a liquid crystal orientation film having a specific polymer, the main chain of the polymer formed of urea bonds and imide bonds, and a liquid crystal display element incorporating the film. The liquid crystal orientation film does not require high temperature heat treatment when prepared, allowing treatment below about 150.degree. C. Hence, the production of a liquid crystal display element using the liquid crystal orientation film is simplified. Furthermore, other element materials are protected, and the substrate used can be a plastic substrate lower in heat resistance than glass. Moreover, the liquid crystal orientation film is excellent in such properties as liquid crystal orienting capability, heat resistance, transparency, strength and adhesion to the substrate, and has an especially large and stable pre-tilt angle. Therefore, the liquid crystal element using the liquid crystal orientation film can be used for many applications and is especially advantageous as a liquid crystal display element of an STN system.
REFERENCES:
patent: 4798849 (1989-01-01), Thomas et al.
patent: 4973137 (1990-11-01), Kozaki
patent: 5298590 (1994-03-01), Isogai et al.
Kitamura Kazuo
Okawa Satoshi
Acquah Samuel A.
Hampton-Hightower P.
Miller Austin R.
Toray Industries Inc.
LandOfFree
Liquid crystal orientation film and a liquid crystal display ele 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 orientation film and a liquid crystal display ele, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid crystal orientation film and a liquid crystal display ele will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1230153