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. 16, 2013
Filed:
Mar. 17, 2009
Takeshi Noda, Mobara, JP;
Takuo Kaitoh, Mobara, JP;
Hidekazu Miyake, Mobara, JP;
Takahiro Kamo, Shibuya, JP;
Takeshi Noda, Mobara, JP;
Takuo Kaitoh, Mobara, JP;
Hidekazu Miyake, Mobara, JP;
Takahiro Kamo, Shibuya, JP;
Hitachi Displays, Ltd., Chiba, JP;
Panasonic Liquid Crystal Display Co., Ltd., Hyogo-ken, JP;
Abstract
A display device includes a TFT substrate in which a plurality of first TFT elements each having an active layer of an amorphous semiconductor and a plurality of second TFT elements each having an active layer of a polycrystalline semiconductor are disposed on a surface of an insulating substrate, wherein the first TFT element and the second TFT element each have a structure with a gate electrode, a gate insulating film, and the active layer stacked in this order on the surface of the insulating substrate and a source electrode and a drain electrode both connected to the active layer via a contact layer above the active layer, and the active layer of the second TFT element has a thickness of more than 60 nm in a position where the contact layer is stacked.