Patent ID: 8279165

Claim:
A liquid crystal display device comprising: a liquid crystal panel in which a plurality of signal lines for transmitting display data and a plurality of control lines for transmitting control signals laid out vertically and horizontally, and pixel electrodes are arranged at intersections of the signal lines and the control lines via switching elements; and an illumination device, wherein said illumination device comprises: a light guide plate facing said liquid crystal panel; and a backlight supplying light to said light guide plate, wherein said light guide plate comprises a plurality of luminescent parts, for emitting light guided therein toward said liquid crystal panel, each of the luminescent parts illuminating a corresponding pixel region among all pixels, wherein emitting the light toward the liquid crystal panel through each of the luminescent parts is turned on or off according to a timing within a frame period, and wherein only a section of the luminescent parts, which section is for illuminating a subjected pixel region that is subject to illumination among all pixels, is turned on at each timing within a frame period, the subjected pixel region being a pixel region where a predetermined waiting time has passed since scan by the control lines and a predetermined illumination time has not passed since pass of the waiting time, and wherein the waiting time is 1 frame period×(n−2)/n, which is a worst response time of a liquid crystal, with n being the number of the pixel regions.