The 3M ThinkPad Yoga Landscape Privacy Filter from Lenovo utilizes the patented 3M microlouver privacy technology so only persons directly in front of the display can clearly see the image on screen. Passersby, or those viewing from an angle see only a blank, dark screen. With identity theft concerns growing and information disclosure laws becoming increasingly more restrictive, the requirement to protect sensitive data is critical. Unique attachment system keeps the security filter in place even when the laptop is closed. Lenovo 3M Thinkpad Yoga Landscape Privacy Filter is one of many Laptop Privacy Filters available through Office Depot. Made by Lenovo.