Patent ID: 6545651
Filing Date: 2003-04-08
Classification: G09G

Abstract:
A driving circuit for driving a matrix of a plurality of organic electroluminescent elements comprising light-emitting layers made of an organic substance and signal electrodes and scanning electrodes, said electrodes holding the light-emitting layers therebetween, said driving circuit comprising a current driving circuit having an output node coupled to said organic electroluminescent elements and generating a driving current at said output node during a driving pulse supplied thereto, said driving pulse including a first period of time, a second period of time following said first period of time, said driving current having a first current value during said first period of time and a second current value during said second period of time, said organic electroluminescent elements being driven by said driving current having said first and second current values to enhance luminance of said organic electroluminescent elements within a period of said driving pulse, electric charges accumulated in said organic electroluminescent elements within said driving pulse for a scanning electrode being discharged before a period of said driving pulse for the following scanning electrode to restrain excessive charging in the following period of said driving pulse.