Luminance compensator in display device

A luminance compensator in a display device, comprising:

• a temperature sensor that detects a temperature of a display panel;
• a temperature estimator that calculates an estimated temperature of each of a plurality of pixel blocks based on an average luminance of each pixel block and the temperature of the display panel;
• a first weight calculator that calculates a first temperature compensation weight of first compensation pixel blocks of the pixel blocks based on a distance between a first pattern area having a first luminance and a second pattern area having a second luminance lower than the first luminance, the second pixel blocks being included in the second pattern area;
• and a temperature compensator that calculates temperature compensation data by applying the first temperature compensation weight to the estimated temperature to compensate the average luminance, and outputs the temperature compensation data.

A luminance compensator in a display device, comprising:

• a temperature sensor that detects a temperature of a display panel;
• a temperature estimator that calculates an estimated temperature of each of a plurality of pixel blocks based on an average luminance of each pixel block and the temperature of the display panel;
• a first weight calculator that detects a placement of the display panel and calculates a first temperature compensation weight of first compensation pixel blocks of the pixel blocks, the first compensation pixel blocks being adjacent to an upper side of an image pattern area displayed on a portion of the display panel;
• and a second weight calculator that calculates a second temperature compensation weight of second compensation pixel blocks of the pixel blocks based on a distance between a first pattern area having a first luminance and a second pattern area having a second luminance lower than the first luminance, the second pixel blocks being included in the second pattern area.