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:
Dec. 07, 1993
Filed:
Nov. 06, 1992
Masanobu Shigeta, Yokosuka, JP;
Tadayuki Shimada, Yokosuka, JP;
Masanao Asami, Yokohama, JP;
Hiroyuki Natsuhori, Kamakura, JP;
Shigeo Shimizu, Yokohama, JP;
Toshio Konno, Tokyo, JP;
Victor Company of Japan, Ltd., Yokohama, JP;
Abstract
A homeotropic-alignment liquid crystal display device having a high photostability and a high contrast ratio and a method of producing the same are disclosed, wherein while two glass substrates having patterned transparent electrodes are set obliquely at a first angle with respect to an evaporation source, then a first SiO.sub.2 film is deposited on each of the glass substrates while irradiating the glass substrates with an ion beam emitted from an ion gun. Subsequently, the glass substrates are turned in their planes over an angle of 90 degrees and set obliquely at a second angle with respect to the evaporation source, and thereafter, a second SiO.sub.2 film is deposited on the respective first SiO.sub.2 films while irradiating the first SiO.sub.2 film with the ion beam. The first and second SiO.sub.2 films thus deposited on the glass substrates jointly form homeotropic-alignment undercoat films. A homeotropic alignment film is applied to each of the undercoat films, and after that the glass substrates are assembled together via spacers and filled with a liquid crystal.