| 摘要 |
PROBLEM TO BE SOLVED: To provide a display device which can improve the uniformity of the luminance and chromaticity. SOLUTION: A back light equipped with a light source is so controlled that the light source begins to illuminate in an increase stage of the transmissivity of a pixel where a video signal is written nearly in the middle of a write period wherein the video signal is written and finishes illuminating in a decrease stage of the transmissivity of the pixel. Here, the back light is so controlled, specially, so that [|M2-M1|Twrite]/[M0(T2-T1)]<=0.92, where T1 is the point of time when the light source begins to illuminate, M1 the transmissivity of a display area where the video signal is written at the point T1 of time, T2 the point of time when the light source finishes illuminating, M2 the transmissivity of the display area where the video signal is written at the point T2 of time, and M0 the maximum value of the transmissivity of the display area of an optical modulating element when the light source is illuminating.
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