An embodiment of the present disclosure discloses a display device which uses a black and white liquid crystal display panel, i.e., not arranging a color resistor layer formed by the color resistor material in the liquid crystal display panel, and arranging a light splitting film between a backlight panel and a liquid crystal layer. The light splitting film enables light emitted from the backlight panel to be split into light of N colors, and light of each color is projected onto a corresponding sub-pixel of the liquid crystal display panel.