| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an LED driving circuit capable of improving luminance unevenness of LEDs. <P>SOLUTION: Disclosed is the LED driving circuit which drives first to fourth LEDs, the LED driving circuit including a current generating circuit which generates a drive current corresponding to the voltage level of a drive voltage applied to anodes of the first to fourth LEDs to drive the first and second LEDs, and third and fourth LEDS alternately, a first driving control circuit which is connected to cathodes of the first and third LEDs and drives the first or third LED by the drive current according to a first control signal controlling the driving of the first or third LED, and a second driving control circuit which is connected to cathodes of the second and fourth LEDs and drives the second or fourth LED by the drive current according to a second control signal controlling the driving of the second or fourth LED. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
