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:
Nov. 06, 2012
Filed:
Sep. 10, 2009
Shunpei Yamazaki, Setagaya, JP;
Kengo Akimoto, Atsugi, JP;
Shigeki Komori, Isehara, JP;
Hideki Uochi, Atsugi, JP;
Rihito Wada, Atsugi, JP;
Yoko Chiba, Atsugi, JP;
Shunpei Yamazaki, Setagaya, JP;
Kengo Akimoto, Atsugi, JP;
Shigeki Komori, Isehara, JP;
Hideki Uochi, Atsugi, JP;
Rihito Wada, Atsugi, JP;
Yoko Chiba, Atsugi, JP;
Semiconductor Energy Laboratory Co., Ltd., Atsugi-shi, Kanagawa-ken, JP;
Abstract
A display device includes a pixel portion in which a pixel electrode layer is arranged in a matrix, and an inverted staggered thin film transistor having a combination of at least two kinds of oxide semiconductor layers with different amounts of oxygen is provided corresponding to the pixel electrode layer. In the periphery of the pixel portion in this display device, a pad portion is provided to be electrically connected to a common electrode layer formed on a counter substrate through a conductive layer made of the same material as the pixel electrode layer. One objection of our invention to prevent a defect due to separation of a thin film in various kinds of display devices is realized, by providing a structure suitable for a pad portion provided in a display panel.