| 摘要 |
A liquid crystal display device is provided with a liquid crystal display panel ( 1 ) composed of a liquid crystal display part having no color filter, and a backlight unit having a light source which can emit light of a plurality of colors. The liquid crystal display device is also provided with a first driving circuit ( 2 ), which permits the light source to successively emit light of a plurality of colors in a prescribed cycle, and applies a driving voltage to the liquid crystal of each pixel of the liquid crystal display part, in synchronization with the emission timing so as to perform color display; a second driving circuit ( 3 ), which stops emission from the light source or permits the light source to emit only light of one wavelength, applies a driving voltage to the liquid crystal of each pixel of the liquid crystal display part in a longer cycle than the prescribed cycle for black-and-white display or monocolor display; and a drive selecting means ( 4 ), which selects to operate either the first driving circuit ( 2 ) or the second driving circuit ( 3 ). The absolute value of the driving voltage of the second driving circuit ( 3 ) is permitted to be smaller than the driving voltage of the first driving circuit ( 2 ).
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