Display device and driving method thereof

摘要

A driving apparatus for a display device includes: a signal controller that generates a pre-clock signal, a charge sharing control signal and a scanning start signal; a clock signal generator that generates a clock signal swinging between a first voltage and a second voltage based on the pre-clock signal and the charge sharing control signal; and a gate driver that generates gate signals based on the scanning start signal and the clock signal, where the clock signal generator includes: a voltage generator that generates a third voltage; and a clock generator that receives one of the first to third voltages in response to the pre-clock signal and the charge sharing control signal, and outputs an output signal based on the one of the first to third voltages as the clock signal, where the third voltage is lower than the first voltage and higher than the second voltage.

主权项

1. A driving apparatus for a display device comprising:
a signal controller that generates a pre-clock signal, a charge sharing control signal and a scanning start signal; a clock signal generator that generates a clock signal having a value swinging between a first voltage and a second voltage based on the pre-clock signal and the charge sharing control signal; and a gate driver that generates a plurality of gate signals to be applied to a plurality of pixels of a display panel of the display device based on the scanning start signal and the clock signal, wherein the clock signal generator comprises:
a voltage generator that generates a third voltage; anda clock generator that receives one of the third voltage from the voltage generator, the first voltage and the second voltage in response to the pre-clock signal and the charge sharing control signal, and outputs an output signal through an output terminal as the clock signal, the output signal obtained based on the one of the third voltage, the first voltage and the second voltage, wherein the third voltage is higher than the first voltage and lower than the second voltage, wherein each of the pre-clock signal and the charge sharing control signal has a first value and a second value, the first value is larger than the second value, wherein the value of the clock signal is changed from the first voltage to the third voltage and then from the third voltage to the second voltage, and wherein the value of the clock signal is changed from the second voltage to the third voltage when the pre-clock signal has the first value and the charge sharing control signal changes from the second value to the first value, and then from the third voltage to the first voltage when the charge sharing control signal has the first value and the pre-clock signal changes from first value to the second value.