| 摘要 |
An optimal processing portion ( 21 ) inputs a video signal (RGB signals) and analyzes 1-frame video in the video signal. For example, if the intensity of red color is 0 percent in all dots in 1-frame video, the optimal processing portion ( 21 ) applies to a light source gain adjustment portion ( 22 ) a control signal for rendering a gain of the illuminating device ( 1 R) 0 percent (minimum amount of light). The light source gain adjustment portion ( 22 ) receives the control signal and controls power supply to the illuminating device ( 1 R). In addition, the optimal processing portion ( 21 ) applies a driving instruction for rendering the amount of light transmission 0 percent with regard to all dots of the liquid crystal display panel ( 3 R), for example, to a LCD signal processing portion ( 23 ).
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