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:
Mar. 31, 1992
Filed:
Apr. 05, 1990
Applicant:
Inventors:
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
359 54 ; 359 58 ; 359 79 ; 340784 ; 423446 ; 156D / ;
Abstract
A liquid crystal display device that includes a pair of transparent substrates between which a liquid crystal layer is disposed. A common electrode is formed on an inside of at least one of the substrates. A plurality of pixel electrodes are formed on an inside of at least one of the substrates. At least one MIM layered structure is connected to each of the pixel electrodes. A hard carbon film constitutes an insulator layer of the MIM structure.