While taking the bus, train, or subway, you always take out your phone to kill time. However, there will always be some private content you do not want to be seen in public. Maybe you are still worried about this, and Privacy Protection Films can help you to avoid this problem. Privacy Protection Films use physical optical polarizing technology to reduce the viewing angle on your screen. The image is neither blurred nor distorted to you, however, all others from the side of the screen can see is the dark screen. It helps to protect your confidential information in the office or in public.