Patent ID: 8031162

Claim:
A display device comprising: display means that updates the display in the order of the columns or rows of pixels on the screen in units of column or row in each period of a frame; a plurality of light sources illuminating the pixels of the display means, respectively, so as to illuminate the columns or rows of pixels on the screen consistent with the order of the display update; and control means controlling the light emission of the light sources in a manner such that the light sources illuminate the pixels updated in sequence in each period of the frame, wherein the control means comprises: sync-signal generating means generating a sync signal for synchronization with the frame; light-emission-indication-signal generating means generating a plurality of light-emission indication signals for the light sources on the basis of the sync signal, respectively, the light-emission indication signals being respectively delayed from the frame-starting time according to a delay time that is dependent upon the period of the frame and the number of the light sources; and a plurality of light-emission control means controlling the light emission of the light sources in response to the light-emission indication signals on a one-to-one basis, wherein the delay time is equal to (k−1)/(M*N), where M is a frame rate corresponding to the period of the frame, N is the number of light sources, and k is the kth of the plurality of light-emission indication signals.