Importance

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Abstract

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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First Claim