A display device including a display panel configured to display, a backlight unit configured to emit light toward the display panel, a pattern layer having a pattern formed to compensate for short-wavelength light among light emitted the backlight unit, and a diffusion plate configured to diffuse the compensated short-wavelength light and the light emitted from the backlight unit, so that the non-uniform color generated due to the color breakup is improved by use of blue ink having a bead shape that is disposed on the diffusion plate.