Patent ID: 7602372

Claim:
A liquid crystal display (LCD) device, comprising: an LCD panel having a plurality of pixels formed in a region in which a plurality of scan lines intersect a plurality of data lines, the LCD panel displaying a predetermined image; a scan driver for supplying a scan signal to the plurality of scan lines so as to select pixels; a source driver for supplying a data signal to the pixels selected by the scan signal through the plurality of data lines; a backlight unit having R, G and B backlights for sequentially emitting light toward the LCD panel in one frame divided into at least two sub-frames; a backlight driver for supplying R, G and B driving currents and R, G and B pulse width modulation (PWM) signals to the backlight unit so as to selectively cause generation of a previous state, activation of the R backlight, activation of the G backlight and activation of the B backlight, and controlling brightness and chromaticity of the R, G and B backlights; and a timing controller for controlling the scan driver, the source driver and the backlight driver.