| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress power consumption and heat generation of a source driver section which supplies a pixel signal to a pixel cell, while suppressing the influence supplied to viewing luminance. Ž<P>SOLUTION: A source driver power supply current Is, which is consumed in a source driver section 6 is monitored in a current monitor section 140. When the monitored source driver power supply current Is becomes higher than a reference level I_L, a control/manage section 500 suppresses power consumption and heat generation by reducing a source power supply voltage Vsd, by controlling a power supply 100 for a source voltage and performs adjustment of a reference gamma voltage Vγ generated by a grayscale reference voltage generation section 200, and input/output conversion adjustment of an image signal performed by a level conversion section 310, so that the luminance decrease arising from the decrease in source power supply voltage Vsd is compensated and performs contrast control for increasing a source output voltage V<SB>source</SB>, which is transmitted from the source driver section 6 to the pixel cell 30, or performs illumination light control for increasing illumination light with which the backlight section 400 illuminates a display panel. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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