Display apparatus and control method thereof

摘要

A method and apparatus are provided for adjusting the contrast ratio in a display apparatus. The display apparatus includes a signal input module which receives a video signal and a signal processing module which processes the video signal received from the signal input module. A display module has a display panel and a panel driver for driving the display panel, and a controlling module calculates the luminance of the video signal and controls at least one of the signal processing module and the panel driver to adjust a contrast ratio of the video signal output to the display panel based on the mean of the calculated luminance.