Display device and driving method thereof

摘要

The present invention provides a display device with reduced power consumption and that reduces changes in luminance, and perceptibility of flicker, and a driving method thereof. A display device according to an exemplary embodiment comprises: a display panel configured to display a still image and a motion picture; a signal controller configured to control signals for driving the display panel; and a graphics processing unit configured to transmit input image data to the signal controller, wherein the signal controller comprises a frame memory configured to store the input image data, and the display panel is driven at a first frequency when the motion picture is displayed and the display panel is driven at a second frequency that is lower than the first frequency when the still image is displayed.

主权项

1. A display device, comprising:
a display panel configured to display a still image and a motion picture; a signal controller configured to control signals for driving the display panel; a graphics processing unit configured to transmit input image data to the signal controller; a light source unit configured to irradiate light to the display panel; and a light source driver configured to control signals to drive the light source unit, wherein the signal controller comprises a frame memory configured to store the input image data, and the display panel is driven at a first frequency when the motion picture is displayed and is driven at a second frequency that is lower than the first frequency when the still image is displayed, wherein the light source driver constantly maintains a driving ratio of the light source unit when the display panel is driven with the first frequency, and periodically changes the driving ratio of the light source unit when the display panel is driven with the second frequency.