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:
Jul. 25, 2000
Filed:
Apr. 08, 1999
Hisaaki Hayashi, Hyogo-ken, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A circuit array substrate for a display device includes a plurality of parallel signal and scanning lines disposed on an insulation substrate which cross each other at a right angle. The signal lines are made of at least upper and lower laminated layers. The upper layers made of aluminum or aluminum alloy are wider in width at the crossing portions with said scanning lines than the lower layers made of indium tin oxide. If the lower layers have cracks at the crossing portions during their patterning process, the wider upper layers cover the lower layers to keep etchant for the aluminum from soaking into the cracks. Thus, such a structure of the signal lines avoids causing the signal lines to break or malfunction.