The non-visible light of the natural light contains more ultraviolet light, so the color shifting layer 280 may be made of the organic photochromic material excited by the ultraviolet light, so as to enable the color shifting layer 280 to have a better effect and to improve the reliability and accuracy of usage. The color shifting layer 280 in this embodiment is made of the organic photochromic material excited by the ultraviolet light, and the organic photochromic material can only be excited by the ultraviolet light. The wavelength range of the ultraviolet light is 10 nm to 400 nm, which can effectively avoid the self-luminous band of the OLED screen 200. When the display screen is exposed to the sunlight, the color shifting layer of the display screen becomes nontransparent and has the reflection function to reflect the received light, that is having the same effect as the reflective material, which can avoid the dark spot of the display screen in sunlight and enhance the brand competitiveness.