A display device (100) includes a display panel assembly (10) having a plurality of pixels arranged in rows and columns and a backlight unit (40) disposed behind the display panel assembly (10) and having a plurality of pixels arranged in rows and columns. The number of the pixels of the backlight unit (40) is less than a number of the pixels of the display panel assembly (10). The backlight unit (40) includes a plurality of scan electrodes arranged along one of row and column directions and a plurality of data electrodes arranged along the other of the row and column directions; and the pixels of the backlight unit (40) are adapted to emit lights having intensities in accordance with gray levels of the pixels of the display panel assembly.
