4-way can prevent personal information from being exposed by adjusting the view angle through sophisticated technology (Micro-louver technology) on the membrane of the film. It protects the personal information by displaying black (or other colored) screen in the outside of 30 degree angle left or right or up or down.

It can prevent personal information from being exposed by adjusting the view angle through sophisticated technology (Micro-louver technology) on the membrane of the film. It protects the personal information by displaying black (or other colored) screen in the outside of 30angle left or right.