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. 13, 2012
Filed:
Feb. 09, 2010
Yoshiaki Toyota, Koshigaya, JP;
Mieko Matsumura, Kokubunji, JP;
Masatoshi Wakagi, Hitachinaka, JP;
Hitachi Displays, Ltd., Chiba, JP;
Panasonic Liquid Crystal Display Co., Ltd., Hyogo-ken, JP;
Abstract
A display device includes a plurality of thin-film transistors formed on a substrate on which a display area is formed. At least one of the plurality of thin-film transistors includes a gate electrode, agate insulating film formed to cover the gate electrode, an interlayer insulating film formed on an upper surface of the gate insulating film and having an opening formed in an area where the gate electrode is formed in plan view, a pair of heavily-doped semiconductor films arranged on an upper surface of the interlayer insulating film with the opening interposed therebetween, a polycrystalline semiconductor film formed across the opening and formed in the area, the polycrystalline semiconductor film being electrically connected to the pair of heavily-doped semiconductor films, and a pair of electrodes formed to overlap the pair of heavily-doped semiconductor films, respectively, without overlapping the polycrystalline semiconductor film.