Patent ID: 8411024

Claim:
An image display device comprising: a liquid crystal display panel configured to selectively implement 2D images and 3D images; panel driving circuits configured to drive the liquid crystal display panel; a backlight configured to include a plurality of light source blocks and supply light to the liquid crystal display panel; and a controller configured to modulate input data to generate image data synchronized with N (where N is a positive integer equal to or more than 4) multiple frame frequency, control the panel driving circuits such that same image data are displayed in the liquid crystal display panel every two consecutive frame periods, control the light source blocks to be sequentially turned on during a light source scanning period and control the light source blocks to be simultaneously turned off during a light source blinking period between neighboring light source scanning periods, wherein the light source scanning period is defined as a period which lasts from a certain time point in a latter frame period of a first pair of frames formed by the two frame periods to a certain time point in a former frame period of a second pair of frames formed by another two frame periods, and wherein the former frame period is subsequent to the latter frame period.