Display apparatus including temperature compensation unit, display module applied therein, and method for controlling temperature of display module

A display apparatus comprising:

• a display module which comprises:
• a front cover,
• a liquid crystal panel that displays an input image,
• a backlight unit disposed behind the liquid crystal panel, and which produces light,
• at least one optical sheet that emits the light produced from the backlight unit toward a rear side of the liquid crystal panel,
• a rear cover coupled to the front cover, and which accommodates the liquid crystal panel, the at least one optical sheet, and the backlight unit, and
• a temperature compensation unit disposed behind the liquid crystal panel, and which reduces a difference in temperature distribution of the liquid crystal panel;
• a liquid crystal driving board that drives the liquid crystal panel;
• a main processing board that converts and processes the input image to display the input image on the liquid crystal panel;
• and
• a power supply unit that supplies power to electrical elements comprising the liquid crystal panel, the backlight unit, the liquid crystal driving board, and the main processing board,
• wherein the temperature compensation unit comprises a heating sheet that transfers heat to a region of the liquid crystal panel, the heating sheet including a heating wire disposed in a region excluding at least one of the liquid crystal driving board, the main processing board, and the power supply unit.