Display device, method of driving display device, and electronic apparatus including display device

A method of driving a display device, the method comprising:

• generating 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;
• generating 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
• generating a driving voltage from the converted voltage curves based on a load of input image data and a maximum grayscale value of the input image data,
• 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 generating the driving voltage comprises selecting one converted voltage curve among the converted voltage curves based on the load of input image data which is a ratio of an average of grayscale values of the input image data to the maximum grayscale value of the input image data.

An electronic apparatus, comprising:

• a display device which outputs visual information;
• and
• a processor which provides input image data to the display device,
• wherein the display device includes:
• 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.