Lenovo privacy filters use 3M's Microlouver technology to protect confidential information such as login details, company financial information and other private data from the side-eye of unauthorised third parties. Only those standing directly in front of the notebook display can see the screen content crisp and clear; when looking from the side, the screen remains black. Ensure a strong first... line of defence in the fight for greater data security with Lenovo privacy filters. Reliable touch compatibility and unmatched protection for Lenovo Tablet PCs; Designed with advanced 3M Microreplication technology and suitable for high-resolution displays; Fits the screen perfectly from edge to edge; Easy to apply, remove, reapply and clean.