Display device and backlight unit included therein

A display device, comprising:

• a backlight unit;
• and
• an image forming unit configured to one of transmit and block light emitted from the backlight unit to form an image,
• wherein the backlight unit comprises:
• a light source;
• a reflector sheet configured to absorb at least one of yellow light and orange light incident on the reflector sheet from the light source, and to reflect light not absorbed by the reflector sheet;
• a light absorption sheet configured to selectively absorb at least one of yellow light and orange light among from light incident on the light absorption sheet from the light source and transmit light not absorbed by the light absorption sheet;
• and
• a reflective polarizing sheet configured to transmit a part of the light incident on the optical sheet toward the image forming unit and reflect other part of the light incident on the optical sheet toward the reflector sheet,
• wherein the reflector sheet comprises:
• a light absorption layer configured to selectively absorb the at least one of yellow light and orange light among from light incident on the reflector sheet and transmit light not absorbed by the light absorption layer, and
• a reflective film configured to reflect light transmitted through the light absorption layer.