Patent ID: 7321347

Claim:
An organic EL drive circuit for current-driving an organic EL panel through terminal pins thereof in a display period according to a first timing control signal having a predetermined frequency for separating the display period corresponding to a scan period of one horizontal line from a reset period corresponding to a retrace period of the horizontal scan, comprising: a timing signal generator circuit for generating a plurality of second timing control signals sequentially delayed from said first timing control signal; a reset pulse generator circuit for selecting one of the plurality of said second timing control signals according to predetermined data and generating a reset pulse having a front edge determined according to said selected second timing control signal and a rear edge determined by said first timing control signal; and a switch circuit responsive to said reset pulse for connecting said terminal pins to a predetermined bias line to reset said organic EL element of said organic EL panel connected to said terminal pins, luminance of said organic EL panel being regulated by regulating said display period according to said predetermined data.