| 摘要 |
<P>PROBLEM TO BE SOLVED: To effectively utilize an information leakage preventing function utilizing polarization. <P>SOLUTION: It is determined whether an information leakage preventing function is set to start application or not (S42), when it is not set, normal screen display using the whole display element is performed (S47), when it is set, display for confirming whether the information leakage preventing function is made effective or not is performed (S43). When a user makes the information leakage preventing function ineffective, application display by the normal screen display using the whole display element is performed (S47). When the user makes the information leakage preventing function effective, the whole display element is divided into two display element groups, an information picture for normal display is displayed by the display element group of one side, a pseudo information picture is displayed by the display element group of the other side, while a plane of the polarization of information light displaying an information picture for normal display and information light displaying the pseudo information picture are displayed while setting them at preset polarization angles (S45). <P>COPYRIGHT: (C)2010,JPO&INPIT |
