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. 29, 2007
Filed:
Feb. 03, 2005
Ichiro Shiraki, Nara, JP;
Mutsumi Nakajima, Nara, JP;
Keisuke Yoshida, Nara, JP;
Shoichi Andou, Mie, JP;
Masayuki Inoue, Mie, JP;
Ichiro Shiraki, Nara, JP;
Mutsumi Nakajima, Nara, JP;
Keisuke Yoshida, Nara, JP;
Shoichi Andou, Mie, JP;
Masayuki Inoue, Mie, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A display device of the present invention comprises: a source line; a pixel electrode; a first TFT for switching an electrical connection between the source line and the pixel electrode; and a second TFT as a spare. The second TFT includes a semiconductor film and a gate electrode. The semiconductor film includes a source electrode and a drain electrode. The gate electrode is provided on the semiconductor film with a gate insulation film interposed therebetween. The display device includes an interlayer insulation film between the source line and the semiconductor film of the second TFT. The interlayer insulation film is thicker than the gate insulation film. When the first TFT is unusable, a contact hole is formed in the interlayer insulation film such that the source line is electrically connected to the source electrode, whereby the electrical connection between the source line and the pixel electrode is rendered switchable by the second TFT.