Movable cursor for selecting and exchanging main picture and sub picture in multi-picture display device

摘要

A picture selector includes a controller such as a mouse controller for controlling the movement of a cursor on a display screen of a display device capable of performing multi-picture display. The cursor on the display screen is moved onto a desired one of plural displayed picture frames by manipulation of the mouse controller, and then the mouse controller is clicked to display the desired picture frame as a main picture frame.