The present invention provides a field sequential color LCD, which includes a LCD panel and a backlight module. The LCD panel includes a color filter of a first color subpixel and a color filter of a second color subpixel, a field sequential cycle of the LCD panel includes a first sub-frame period and a second sub-frame period. The backlight module provides backlight, including red, cyan, blue and green backlights, to the LCD panel. The backlight module provides two of the four backlights in the first sub-fame period, and provides another two of the four backlights in the second sub-frame period. The above LCD can cover the pointer's gamut entirely in the natural world, only color filters of subpixels of two colors are required to achieve tetra-color (RGBC) display, no additional subpixel is required, the manufacturing process of color filter of LCD panel is simplified, and the cost is reduced.