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. 03, 2012
Filed:
Jul. 28, 2010
Takeshi Noda, Mobara, JP;
Toshio Miyazawa, Chiba, JP;
Takuo Kaitoh, Mobara, JP;
Daisuke Sonoda, Chiba, JP;
Takeshi Noda, Mobara, JP;
Toshio Miyazawa, Chiba, JP;
Takuo Kaitoh, Mobara, JP;
Daisuke Sonoda, Chiba, JP;
Hitachi Displays, Ltd., Chiba, JP;
Panasonic Liquid Crystal Display Co., Ltd., Hyogo-ken, JP;
Abstract
A display device which has thin film transistors, wherein a semiconductor layer includes a first layer, second layers and third layers, the first layer has a channel region, the second layers are an impurity layer, the third layers are a low-concentration impurity layer, the second layers have connection portions connected with an electrodes, the third layers are formed to annularly surround the second layers, a channel-region-side edge portion out of edge portions of the third layer is in contact with the first layer, the edge portions of the third layer but the channel-region-side edge portion are in contact with an interlayer insulation film, the second layers have a first region where the second layer overlaps with a gate electrode and a second region where the second layer does not overlap with the gate electrode, and the connection portion is in the second region.