Patent ID: 6184859
Filing Date: 2001-02-06
Classification: G06F,G09G

Abstract:
A picture display apparatus, comprising:display means having a display screen for displaying a picture;specifying means for specifying an optional area of an overall picture displayed on a display screen of said display means;magnified picture generating means for generating a magnified picture of the area specified by said specifying means;display control means for superimposing said magnified picture on said overall picture in such a manner that said magnified picture is superimposed on said overall picture and the portion of said overall picture overlapped below the magnified picture is rendered visible and displayed in a same color as and with a lower density than said overall picture on the display screen of the display:bi-level display control means for initially displaying a picture displayed on the display screen of said display means by bi-level representation; andconvert-to-multi-level display control means for displaying in multi-level representation after end of display in bi-level representation.