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:
Apr. 07, 2009
Filed:
Feb. 08, 2006
Toshio Araki, Kumamoto, JP;
Toshio Araki, Kumamoto, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A pixel electrode is disposed to cover the inner surfaces of a pixel-drain contact hole passing through a third insulating film and a second insulating film to reach a drain electrode. At the bottom of the pixel-drain contact hole, the pixel electrode is electrically connected with the drain electrode through a contact conductor film. The pixel-drain contact hole is formed of a connection of a contact hole passing through the second insulating film and a contact hole passing through the third insulating film. The dimensions of the opening end of the contact hole are larger than its dimensions at the bottom, and thus the inner surfaces of the contact hole are smoothly sloped and shaped like a crater in cross section.