3M™ Privacy Screen Protector for Apple® iPad® (Portrait) 3M™ Privacy Screen Protector for the Apple® iPad® (Portrait). Utilizes 3M™'s microlouver privacy technology so you can use your Tablet PC in public without revealing confidential information. You clearly see your information on your display while people at your side only see a darkened screen. 3M™ Privacy Screen Protector enhances your viewing experience and is easy to remove leaving no adhesive residue on your screen.