The invention described in the present specification relates to a backlight unit including a light source including a light emission lamp emitting light including a 450 nm wavelength, and an inorganic fluorescent substance provided at least a part of inside or on a surface of the lamp and having a maximum light emission wavelength in a 510 nm to 560 nm range when irradiating light including a 450 nm wavelength; and a color conversion film including an organic fluorescent substance, and having a maximum light emission wavelength in a 610 nm to 660 nm range when irradiating light emitted from the light emission lamp or the inorganic fluorescent substance, and a display apparatus including the same.