| 摘要 |
PROBLEM TO BE SOLVED: To realize an effective presentation in which the changing of a publication order and the adding of information can be performed as circumstances demand with a user interface friendly to the publisher and which does not give excessive information such as to disturb understanding to the audience by providing screens for publisher and audience and providing present screen information for audience and in addition to them, information related to them and information of screens before and after them on the screen for publisher. SOLUTION: A publisher determines ranges and arrangements of a screen for audience display part and other display parts by using an input device 3 and by seeing the screen of a display (for example, display part 9) and determines the range and the arrangement of the screen for audience similarily. Next, when the publisher judges whether he performs displays in a placed order or not and when he changes the plan hastily and he specifies a next screen from the input device 3, a control part 1 obtains information as to which screen the next screen is and transfers picture data of the next screen from a nonvolatile memory part 4 or a main memory 2 to respective control parts for graphics 5, 6 and the picture data are calculated so as to be able to be displayed on respective screens for publisher and audience of display parts 9, 10 and the picture data are made to be displayed on the screens for publisher and audience. |
