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:
Sep. 28, 1976
Filed:
Aug. 26, 1975
Katsuji Hattori, Uji, JA;
Masakazu Fukai, Nishinomiya, JA;
Akio Moriyama, Katano, JA;
Yasuhiro Nishizawa, Hirakata, JA;
Matsushita Electric Industrial Co., Ltd., Osaka, JA;
Abstract
A liquid crystal display device comprising a pair of transparent substrates each provided with a transparent conductive film on the interior surface, boron nitride coating layers disposed on inner surfaces of the substrates and the conductive films, and a liquid crystal material interposed between the coating layers, the boron nitride layer being given preferred directions for aligning the molecules of the liquid crystal material. This structure increases the chemical stability and improves the alignment of the molecules of the liquid crystal material to a great extent.