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:
Feb. 03, 2015
Filed:
Aug. 01, 2014
Japan Display Inc., Tokyo, JP;
Panasonic Liquid Crystal Display Co., Ltd., Himeji-shi, JP;
Taro Asai, Chiba, JP;
Jun Gotoh, Mobara, JP;
Eiji Oue, Mobara, JP;
Hiroaki Asuma, Mobara, JP;
Katsumi Nakayashiki, Miyazaki, JP;
Makoto Kurita, Mobara, JP;
Japan Display Inc., Tokyo, JP;
Panasonic Liquid Crystal Display Co. Ltd., Himeji-Shi, JP;
Abstract
An organic EL display device includes scanning lines, video signal lines, and pixels, each including a TFT having a semiconductor layer and an organic EL layer located between a lower electrode and an upper electrode. A source electrode connecting the semiconductor layer and the lower electrode is formed of three layers including a barrier metal, an Al-containing metal, and a cap metal. The barrier metal is formed of a first layer in contact with the semiconductor layer and a second layer in contact with the Al-containing metal. Each of the first layer, the second layer, and the cap metal is formed of a metal comprising a high melting point metal, and an amount of oxygen in the first layer is larger than an amount of oxygen in the second layer.