Led display driving circuit for compensating shorted led and display device thereof

Abstract

A LED display driving circuit includes a channel driving circuit configured to supply a channel current to a plurality of channel lines according to a pulse width modulation (PWM) control signal, a scan driving circuit including a plurality of scan switches connected to a plurality of scan lines and selectively turned on or off according to a scan signal to select a scan line connected to LEDs to emit light, and a plurality of precharge switches connected to the plurality of scan lines and operate complementarily with the scan switches, and a data controller configured to generate the PWM control signal, the scan signal, and the precharge control signal and maintain a target scan line in a floating state by turning off a precharge switch connected to a target scan line when a scan switch of a target scan line to which a shorted LED is connected is turned off when the shorted LED among the plurality of LEDs is detected.