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:
Jul. 04, 2017
Filed:
Sep. 21, 2016
Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken, JP;
Mitsuaki Osame, Kanagawa, JP;
Aya Anzai, Kanagawa, JP;
Yoshifumi Tanada, Kanagawa, JP;
Keisuke Miyagawa, Kanagawa, JP;
Satoshi Seo, Kanagawa, JP;
Shunpei Yamazaki, Tokyo, JP;
Abstract
A light emitting device that achieves long life, and which is capable of performing high duty drive, by suppressing initial light emitting element deterioration is provided. Reverse bias application to an EL element () is performed one row at a time by forming a reverse bias electric power source line () and a reverse bias TFT (). Reverse bias application can therefore be performed in synchronous with operations for write-in of an image signal, light emission, erasure, and the like. Reverse bias application therefore becomes possible while maintaining a duty equivalent to that of a conventional driving method.