Patent ID: 8860639

Claim:
A timing controller, comprising: a reception unit configured to receive a plurality of video signals and a timing signal transferred from a system; an image signal generation unit configured to realign the video signals to generate a plurality of image signals; and a control signal generation unit configured to: analyze the video signals to determine whether a current input image is a static image or a moving image; generate a plurality of control signals according to the determined result; generate a plurality of control signals which allow a panel to be driven at a change frame driving frequency lower than a reference frame driving frequency necessary for driving the moving image when the current input image is determined as the static image; and determine whether the input image is the static image by using a differential mean and average brightness values between frames, wherein the control signal generation unit further comprises a frame comparator configured to analyze the video signals for each frame or each line of adjacent frames to determine the current input image is the static image, wherein the frame comparator comprises: an N−1 st frame generation unit configured to store an N−1 st frame for the video signals; and an Nth frame generation unit configured to store an Nth frame for the video signals wherein control signals are generated according to the change frame driving frequency when the current input image is determined as the static image.