DISPLAY DEVICE AND BRIGHTNESS CONTROL METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a display device and a brightness control method therefor, capable of surely preventing a display part from being damaged. SOLUTION: A temperature difference estimating unit 4 obtains a temperature difference estimate Td from a video signal VS by using a temperature estimate Te expressing a peripheral part temperature of a display screen of a PDP 11 and a reference value To expressing a panel peripheral part temperature of the PDP 11 outputted from a panel peripheral part temperature setting unit 5, and a controller 3 and a brightness controller 2 control brightness of an image displayed on a display part 1 according to the temperature difference estimate Td.