PURPOSE: To moderate the change of graphic display when the change quantity of a display value is violent, by taking the position of the display figure of graphic display and digital display up when the change quantity of the display value reaches a predetermined value or more.

CONSTITUTION: When the display of a speed is performed by a car speedometer 10, the number of units is subjected to analogue display by a bar graph 11, and the number of tens and the number of hundreds are displayed digitally by a digital display part 13. At this time, a number-of-figure display part 12 displays a numerical value of 5 in order to show that the number of units is displayed by the graph 11. Next, when change quantity reaches a predetermined value or more, the change of the position is performed and the round to the nearest whole number of the unit's place figure is performed so as to perform the display of ten-place figure or more and, thereafter, the transfer to a display routine is performed. Therefore, the number of units is subjected to analogue display by the graph 11 and the number of hundreds is digitally displayed by the part 13. At this time, the display part 12 displays a numerical value of 50 showing that the graph 11 displays the number of tens.