Liquid crystal display element

Abstract

Abstract PURPOSE:To easily obtain a liquid crystal display element reduced in weight and thickness by using a specified aromatic polyetheresteramide polymer for an orientation control film material and making it possible to obtain said film at low temp. in a short time. CONSTITUTION:A material to be used as an orientation control film is an aromatic polyetheresteramide polymer having repeating units of formulae I and IIin which R1-R4 are each H, lower alkyl, lower alkoxy, Cl, or Br; R5, R6 are each H, methyl, ethyl, propyl, CF3, or CCl3; Ar, Ar' are each p-phenylene, m- phenylene, diphenylene, naphthylene, or the like; and X is a 2-10C aliphatic group optionally having an ether bond or the same as Ar'. The orientation control film is obtained at low temp. in a short time only by evaporating and drying a solvent after coating a substrate with a soln. of this polymer, thus permitting extremely easy and inexpensive fabrication of a liquid crystal display element, as compared with the conventional processes.

Inventors

• 👤 Hiroshi Minamizawa
• 👤 南沢　寛
• 👤 Toshiaki Fukushima
• 👤 利明 福島
• 👤 Hisashi Takagame
• 👤 高亀　寿
• 👤 Toyoichi Ueda
• 👤 豊一 植田

Bibliographic Details