LIQUID CRYSTAL PANEL DRIVING CIRCUIT AND LIQUID CRYSTAL DISPLAY DEVICE

This liquid crystal panel driving circuit comprises: a voltage output unit (40) that is equipped with a pulse signal output port that outputs an adjustable-pulse-width pulse signal, and a first port and a second port that can switch between outputting a direct-current power supply voltage and outputting a ground voltage; a resistance voltage divider circuit (50) that is connected to the first portand the second port; and a low pass filter (60), an input side of which is connected to a voltage output node of the resistance voltage divider circuit and the pulse signal output port, and an outputside of which is connected to a terminal (21) that outputs a voltage to a liquid crystal panel. If a liquid crystal panel segment is to be turned off, the voltage output unit executes off control ofalternating a state in which the direct-current power supply voltage is output from the first port and the ground voltage is output from the second port and a state in which the ground voltage is output from the first port and