The screen is clear, crisp and bright when viewed by the user. When viewed from the side, the microlouver feature blocks the information to reveal a dark, black screen. A unique feature designed to safeguard sensitive information from prying eyes. The 3M Notebook business traveller on an airplane, attorney, consultant, executive, insurance agent or anyone constantly on the move. Simply stick the tabs and slide the filter in. The filter remains on screen at all times and stays in-place even when the notebook is closed. When there is a need to share information or present to a small group, simply slide the notebook privacy filter off