A display device, comprising: a display panel; and a polarization member on the display panel, wherein the polarization member includes: a polarizer; and a plurality of functional layers on at least one surface of the polarizer, one of the plurality of functional layers including a first light absorbing dye that absorbs light having a wavelength range of greater than 380 nm and equal to or less than 450 nm, wherein the one functional layer including the first light absorbing dye has a light transmittance in a wavelength range of greater than 380 nm and equal to or less than 400 nm of 5% or less, and has a light transmittance in a wavelength range of greater than 400 nm and equal to or less than 410 nm of 65% or less, and has a light transmittance in a wavelength range of greater than 410 nm and equal to or less than 780 nm of greater than 65% to less than 100%, and the first light absorbing dye includes at least two 2-(2-hydroxyphenyl)-benzotriazole derivatives, the at least two 2-(2-hydroxyphenyl)-benzotriazole derivatives are different from each other, and the at least two 2-(2-hydroxyphenyl)- benzotriazole derivatives cause the one functional layer including the first light absorbing dye to have a light transmittance in a wavelength range of greater than about 380 nm and equal to or less than about 400 nm of about 5% or less. a display panel; and a polarization member on the display panel, wherein the polarization member includes: a polarizer; and a plurality of functional layers on at least one surface of the polarizer, one of the plurality of functional layers including a first light absorbing dye that absorbs light having a wavelength range of greater than 380 nm and equal to or less than 450 nm, wherein the one functional layer including the first light absorbing dye has a light transmittance in a wavelength range of greater than 380 nm and equal to or less than 400 nm of 5% or less, and has a light transmittance in a wavelength range of greater than 400 nm and equal to or less than 410 nm of 65% or less, and has a light transmittance in a wavelength range of greater than 410 nm and equal to or less than 780 nm of greater than 65% to less than 100%, and the first light absorbing dye includes at least two 2-(2-hydroxyphenyl)-benzotriazole derivatives, the at least two 2-(2-hydroxyphenyl)-benzotriazole derivatives are different from each other, and the at least two 2-(2-hydroxyphenyl)- benzotriazole derivatives cause the one functional layer including the first light absorbing dye to have a light transmittance in a wavelength range of greater than about 380 nm and equal to or less than about 400 nm of about 5% or less. a polarizer; and a plurality of functional layers on at least one surface of the polarizer, one of the plurality of functional layers including a first light absorbing dye that absorbs light having a wavelength range of greater than 380 nm and equal to or less than 450 nm, wherein the one functional layer including the first light absorbing dye has a light transmittance in a wavelength range of greater than 380 nm and equal to or less than 400 nm of 5% or less, and has a light transmittance in a wavelength range of greater than 400 nm and equal to or less than 410 nm of 65% or less, and has a light transmittance in a wavelength range of greater than 410 nm and equal to or less than 780 nm of greater than 65% to less than 100%, and the first light absorbing dye includes at least two 2-(2-hydroxyphenyl)-benzotriazole derivatives, the at least two 2-(2-hydroxyphenyl)-benzotriazole derivatives are different from each other, and the at least two 2-(2-hydroxyphenyl)- benzotriazole derivatives cause the one functional layer including the first light absorbing dye to have a light transmittance in a wavelength range of greater than about 380 nm and equal to or less than about 400 nm of about 5% or less.