Controller, display device including the same, and method of driving display device using the same

A controller, comprising:

• a first luminance determiner configured to determine first luminances with respect to a reference grayscale in a second frame after a first frame when the reference grayscale is displayed in the second frame after the reference grayscale is displayed in the first frame;
• a second luminance determiner configured to determine second luminances with respect to the reference grayscale in the second frame when the reference grayscale is displayed in the second frame after a minimum grayscale is displayed in the first frame;
• and
• a time-and-space arranger configured to temporally and spatially arrange first data corresponding to the reference grayscale and second data corresponding to the minimum grayscale based on an input grayscale, a gamma value, the first luminances, and the second luminances,
• wherein the controller is configured to:
• drive a display panel including at least one block including a plurality of pixels with a digital driving method using the first data and the second data in a first grayscale section less than or equal to the reference grayscale;
• and
• drive the display panel with an analog driving method in a second grayscale section greater than the reference grayscale.

A method of driving a display device including at least one block including a plurality of pixels, the method comprising:

• determining first luminances with respect to a reference grayscale in a second frame after a first frame when the reference grayscale is displayed in the second frame after the reference grayscale is displayed in the first frame;
• determining second luminances with respect to the reference grayscale in the second frame when the reference grayscale is displayed in the second frame after a minimum grayscale is displayed in the first frame;
• temporally and spatially arranging first data corresponding to the reference grayscale and second data corresponding to the minimum grayscale based on an input grayscale, a gamma value, the first luminances, and the second luminances to generate a data signal;
• and
• generating a data voltage based on the data signal.