A display device includes a display panel, a light guide plate disposed under the display panel, a light source which provides a side surface of the light guide plate with incident light, a reflective plate disposed under the light guide plate, a first optical adjustment member which includes first scattering particles which scatter a first color wavelength range of the incident light into a first value and scatter a second color wavelength range of the incident light into a second value, and a second optical adjustment member which includes second scattering particles which scatter the first color wavelength range of the incident light into a third value and scatter the second color wavelength range of the incident light into a fourth value.