The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 07, 1995
Filed:
Jan. 28, 1993
Mitsuhiro Koden, Nara, JP;
Akira Tagawa, Kashihara, JP;
Hitoshi Takeda, Tenri, JP;
Hirofumi Katsuse, Tenri, JP;
Makoto Shiomi, Tenri, JP;
Takaji Numao, Nara, JP;
Hiroshi Gouda, Tenri, JP;
Masayuki Katakami, Nara, JP;
Naofumi Kondo, Nara, JP;
Mikio Katayama, Ikoma, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A liquid crystal display includes a liquid crystal cell including a pair of substrates opposite to each other, each substrate having an electrode film and an orientation control layer thereon, and a ferroelectric liquid crystal filled between the substrates; and a pair of polarizing plates which are provided opposite to each other in the state of 'cross nicol' on both sides of the liquid crystal cell; the ferroelectric liquid crystal being bistable in the liquid crystal cell, the polarizing plates being oriented in such a manner that one of their polarizing directions conforms to one of extinction positions of the ferroelectric liquid crystal under no electric field, the liquid crystal cell being applied with an alternating voltage for changing which has a positive portion which gives an apparent tilt angle from one stable state, and a negative portion which gives an apparent tilt angle relative to the other stable state, resulting in display with gray scale.