Patent ID: 6552850
Filing Date: 2003-04-22
Classification: G07F

Abstract:
A system for a user to view information displayed on a terminal along a first line of sight from the user to the terminal, while preventing an observer from viewing the information displayed along a second line of sight from the observer to the terminal, comprising:a polarized display screen for the terminal, wherein the polarized display screen has a first direction of polarization and wherein the information displayed on the polarized display screen is visible to the user without additional polarization along the first line of sight, said user at a first distance from said screen; a polarizing partition having a second direction of polarization; wherein at least a portion of said partition is located at a distance greater than said first distance from said screen; and wherein the second direction of polarization is substantially perpendicular to the first direction of polarization, such that the information displayed on the polarized display is not readily visible to the observer when the polarizing partition intersects the second line of sight; a framework; a first sheet of linear polarizing film positioned within the framework; wherein the polarizing partition comprises the framework; and at least a second sheet of linear polarizing film positioned within the framework; wherein the at least second sheet of linear polarizing film is oriented differently than the first sheet of linear polarizing film; wherein the polarizing partition is located such that the user may view the terminal without the polarizing partition intersecting the first line of sight; and wherein the polarizing partition is located such that the polarizing partition intersects the second line of sight of the observer.