| CPC G09G 3/3233 (2013.01) [G09G 3/32 (2013.01); G09G 2320/0247 (2013.01); G09G 2320/0673 (2013.01); G09G 2330/021 (2013.01)] | 20 Claims |
|
1. A display device, comprising:
a display panel which displays an image based on output image data which is converted input image data;
a voltage curve controller which generates a converted peak luminance, a converted full white luminance, a converted peak grayscale corresponding to the converted peak luminance, and a converted full white grayscale corresponding to the converted full white luminance from a reference peak luminance and a reference full white luminance based on a gain mode and a gain value, and generates converted voltage curves including a first converted voltage curve from a first reference voltage curve based on the converted peak grayscale and the converted full white grayscale, each of the converted voltage curves representing a voltage with respect to a grayscale; and
a driving voltage controller which generates a driving voltage from the converted voltage curves based on a load of the input image data and a maximum grayscale value of the input image data, and provides the driving voltage to the display panel,
wherein a voltage of the first converted voltage curve with respect to a peak grayscale is equal to a voltage of the first reference voltage curve with respect to the converted peak grayscale, and
wherein the driving voltage controller selects one converted voltage curve among the converted voltage curves based on the load of the input image data which is a ratio of an average of grayscale values of the input image data to the maximum grayscale of the input image data.
|