Patent ID: 7969515

Claim:
A video display apparatus capable of displaying videos corresponding to a plurality of observers, respectively, the apparatus comprising: a display device; a display device driving circuit which drives the display device; an illumination system which switches an illuminating direction of the display device; and a control unit which controls the display device driving circuit to alternately input different videos into the display device and which switches the illuminating direction of the illumination system in synchronization with the input of each video to thereby display in the display device the different videos in a time sharing manner, wherein the control unit controls a scan timing so that a sum of a video scanning period from an upper end to a lower end of the display device concerning one video input into the display device and a response period in the lower end of the display device is smaller than a field period of the video; and the control unit allows the illumination system to emit light between the end of the response period of the lower end and the start of scanning of the next video in the upper end of the display device.