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:
Feb. 06, 2007
Filed:
Dec. 10, 2001
Yutaka Nanno, Kobe, JP;
Kouji Senda, Nagaokakyo, JP;
Yutaka Nanno, Kobe, JP;
Kouji Senda, Nagaokakyo, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An EL display deviceincludes a display portionhaving unit pixelsarranged in a matrix, a source line driver circuit, and a gate line driver circuit. Each of the unit pixelshas an EL element, a switching transistor Tr, a driver transistor Tr, and an auxiliary capacitor. The auxiliary capacitorhas electrodes, one connected to a gate electrode of the transistor Trand the other to a next gate line GL. The gate line driver circuitoutputs, via the next gate line GL, blanking signals for forcibly stopping a light-emitting state of the EL elements, within hold times in which the voltages written to the gate electrodes of the transistors Trare held. With such a configuration, a blanking period where the EL elements do not emit light, is inserted in one frame.