Image display device and image display method

Abstract

In one embodiment of the present invention, an image display device capable of providing adequate quality of a moving image regardless of an image signal level of an input image signal is disclosed. An image display device of the present invention displays an image in accordance with image signals of respective pixels in each frame period wherein a frame period corresponds to image signals for a single screen, and the image display device comprises: a timing controller for dividing a single frame period into a plurality of periods including at least one sub frame A period and at least one sub frame B period; an image signal preconverting section for converting image signal levels of input image signals for the respective pixels so that the converted image signal levels are within a range from a predetermined lower limit to a predetermined upper limit; a first image processing section for carrying out a smoothing process with respect to the converted image signals of the respective pixels in the sub frame A period; a second image processing section for carrying out an emphasizing process with respect to the converted image signals of the respective pixels in the sub frame B period; and an image display section for displaying an image in accordance with the image signals for the respective pixels.