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:
Jun. 07, 2005
Filed:
Jun. 14, 2004
Tomoaki Takahashi, Mobara, JP;
Sakari Kaneku, Mobara, JP;
Hideaki Yamamoto, Tokorozawa, JP;
Mitsuo Nakatani, Mobara, JP;
Hiroshi Sasaki, Mobara, JP;
Tomoaki Takahashi, Mobara, JP;
Sakari Kaneku, Mobara, JP;
Hideaki Yamamoto, Tokorozawa, JP;
Mitsuo Nakatani, Mobara, JP;
Hiroshi Sasaki, Mobara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A method of manufacturing an LCD device which includes a gate line having an effective display area which includes an aluminum alloy layer and an aluminum oxide layer. The gate line also includes a gate terminal portion which is made up of the same aluminum alloy layer with a molybdenum alloy layer formed thereon. To form this structure, an insulating substrate of the LCD device, with the laminated structure of the aluminum alloy layer and the molybdenum layer, is immersed in an electrolytic solution. During the immersion, the molybdenum layer is etched off the aluminum alloy in the effective displaying area, while the etching is prevented in the gate terminal area by a protective layer. Following this, the aluminum oxide layer is formed over the aluminum alloy in the effected display area while the device is still immersed in the electrolytic solution.