1. A display apparatus comprising: a light source configured to emit backlight; a light guide plate configured to guide at least one of the backlight from the light source and external light between an upper surface of the light guide plate and a lower surface of the light guide plate, the upper surface of the light guide plate including a light emitting surface configured to emit at least one of the backlight from the light source and the external light; a diffusion reflective member coated on the upper surface of the light guide plate, the diffusion reflective member configured to reflect the backlight; a color reflective member below the lower surface of the light guide plate, the color reflective member including a plurality of arrayed color regions configured to receive at least one of the backlight and the external light and reflect at least one of the backlight and the external light as colored light to the light guide plate; and a light modulation member above the upper surface of the light guide plate, the light modulation member including a plurality of pixel regions corresponding to the plurality of arrayed color regions, each of the plurality of pixel regions including an effective region and an ineffective region, the light modulation member being configured to modulate the colored light to form an image, wherein the diffusion reflective member faces the ineffective regions, the diffusion reflective member includes a plurality of sub-diffusion reflective members, each of the sub-diffusion reflective members is configured to face a corresponding one of the ineffective regions, and an area of a sub-diffusion reflective member is equal to or smaller than an area of a corresponding ineffective region.