Why do mobile phone screens reflect light so dazzlingly? Popular science on the principle of polarized light

The light on the screen is not ordinary light

Natural light vibrates uniformly in all directions, while the light emitted by a mobile phone screen isPolarized lightThe vibration direction is relatively concentrated in a specific direction. This physical property brings about two types of daily disturbances:

●InternallyWhen viewing the screen from multiple angles, uneven brightness and color shift may occur.

●ExternalWhen ambient light shines on the screen surface, specular reflection occurs, creating dazzling reflections - especially noticeable near Windows or under artificial lighting.

02. Two corresponding solution paths

Internal path: Circularly polarized light.Through the optical structure of circularly polarized light, the light output from the screen is optimized into circularly polarized light with uniform rotation in the vibration direction - the optical characteristics of circularly polarized light are closer to natural light. This is the research focus of the Chinese Journal of Preventive Medicine in 2009.

External approach: AR anti-reflective coating.By vacuum magnetron sputtering multi-layer nanofilm structures and using the principle of cancellation interference, the surface reflectivity is reduced from about 4% of ordinary glass to below 0.5% - with less reflection, the awkwardness of "looking in the mirror" on the screen is also reduced.

03. The Origin of "Dual Protection Synergy"

There are two types of interference: one from inside the screen and the other from outside. Any single method can only solve half of the problem. The Woowhead scinique® technology integrates two paths within the same membrane structure to work collaboratively, which is the meaning of the four words "Double Protection Synergy".