A display device that selectively provides a first display and a second display, the display device comprising: a first light source for emitting first light in blue; a second light source for emitting second light with peak wavelength different from wavelength of the first light; and a color filter having a translucent sheet that is hit selectively by one of the first and second lights, the translucent sheet being provided with a first printed area part which is capable of passing the first light to provide the first display excluding an overlapped portion of the first display and the second display and preventing the second light from passing through the first printed area part, a second printed area part which is capable of passing the second light to provide the second display excluding the overlapped portion and preventing the first light from passing through the second printed area part, a third printed area part which is capable of dimming and passing the first light and the second light to provide the overlapped portion, and a background printed area part which is capable of preventing the first light and the second light from passing through the background printed area part, the display device being characterized in that a white light converting part is provided at a front side of the color filter, wherein the white light converting part is capable of converting the first light, which passes through the white light converting part after passing through the first printed area part and the third printed area part, into the white light, and wherein the white light converting part is capable of passing the second light, which passes through the white light converting part after passing through the second printed area part and the third printed area part, without changing a color of the second light. a first light source for emitting first light in blue; a second light source for emitting second light with peak wavelength different from wavelength of the first light; and a color filter having a translucent sheet that is hit selectively by one of the first and second lights, the translucent sheet being provided with a first printed area part which is capable of passing the first light to provide the first display excluding an overlapped portion of the first display and the second display and preventing the second light from passing through the first printed area part, a second printed area part which is capable of passing the second light to provide the second display excluding the overlapped portion and preventing the first light from passing through the second printed area part, a third printed area part which is capable of dimming and passing the first light and the second light to provide the overlapped portion, and a background printed area part which is capable of preventing the first light and the second light from passing through the background printed area part, the display device being characterized in that a white light converting part is provided at a front side of the color filter, wherein the white light converting part is capable of converting the first light, which passes through the white light converting part after passing through the first printed area part and the third printed area part, into the white light, and wherein the white light converting part is capable of passing the second light, which passes through the white light converting part after passing through the second printed area part and the third printed area part, without changing a color of the second light.