| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a light emitting element driving device which supplies nearly equal currents to a plurality of LEDs without making a driving voltage high nor making a driving circuit large-sized. <P>SOLUTION: The light emitting element driving device of the present invention has the plurality of light emitting elements 1 which are driven with currents to emit lights and a plurality of current driving transistors 2 which controls the driving currents of the light emitting elements 1, and current terminals of the current driving transistors 2 and one-side terminals of the light emitting elements 1 are connected respectively to make voltages between control terminals of the plurality of current driving transistors 2 common. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
