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. 19, 1991
Filed:
Dec. 07, 1990
Nippon Soken, Inc., Nishio, JP;
Abstract
A driving circuit for an electroluminescence device including a plurality of driving electrodes provided on at least one electroluminescence layer, a common electrode oppositely arranged to the driving electrodes with the electroluminescence layers interposed therebetween and commonly conducted, a common voltage supplying unit for applying a common pulse voltage to the common electrode, a luminescence voltage supplying unit for supplying a luminescence pulse voltage to the driving electrodes, and a non-luminescence voltage supplying unit for supplying a non-luminescence pulse voltage to the driving electrodes, wherein a timing in which the voltage applied to the electro-luminescence layer is zero voltage at a leading edge or a trailing edge of a wave form of the common pulse voltage, is utilized so that all of the electroluminescence layer are discharged in synchronization with each other to prevent generation of a spike pulse, whereby electroluminescence with high brightness can be obtained.