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:
Aug. 01, 2006
Filed:
Nov. 26, 2004
Yasumasa Goto, Saitama-ken, JP;
Yasumasa Goto, Saitama-ken, JP;
Toshiba Matsushita Display Technology Co., Ltd., Tokyo, JP;
Abstract
A display device includes a display area composed of pixels in a matrix. Each pixel has a light-emitting element and a driving element to supply a driving current to the light-emitting element. The driving element includes a thin film transistor with a semiconductor layer of a poly-crystalline film. The semiconductor layer is provided with channel region, and a source and drain region disposed on both sides of the channel region. The channel region connects the source region to the drain region and has at least two conductive regions with different average grain sizes. The characteristics of the driving elements are made substantially uniform so that the display quality of the display device can be improved remarkably.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile