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:
May. 27, 1997
Filed:
May. 25, 1995
Yoko Wakui, Naka-gun, JP;
Nobutake Konishi, Hitachioota, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A liquid crystal display comprises a lower substrate provided with a plurality of scanning signal lines, a plurality of image signal lines perpendicularly intersecting the scanning signal lines, a plurality of thin-film transistors formed at the intersection points of the scanning signal lines and the image signal lines, and a plurality of pixel electrodes connected respectively to the thin-film transistors; an upper substrate disposed opposite to the lower substrate and provided with a common electrode opposite to the pixel electrodes; and liquid crystal layer sealed in a space formed between the lower and the upper substrate. Each of the scanning signal lines is formed so as to form the gate electrode of a corresponding thin-film transistor, the scanning signal lines are formed by processing a metal film of columnar crystal grains, and the surface of the metal film is coated with a self-aligned oxide film.