METHOD FOR PREVENTING PEEPING AT DISPLAY PICTURE AND DISPLAY PICTURE SCREEN

摘要

PROBLEM TO BE SOLVED: To provide a method for preventing data displayed on a screen from being peeped from an oblique direction, a method inexpensive and practical without necessitating selection of an installation place, and also to provide a screen for a display picture. ;SOLUTION: A screen in which plural prism elements with a slope are formed at a prescribed pitch or a screen made of a metal covered transparent material is installed in front of a display picture, thereby making a display picture obscured or totally invisible from an oblique direction inclined with respect to the front of the display picture, and thus preventing an oblique glance at the display picture.;COPYRIGHT: (C)2001,JPO