| 摘要 |
<p>PURPOSE:To execute an input of display information by a simple operation, by controlling a turn-on of a dot in a matrix displaying circuit by an input card having an entry part to which a resistance paint is applied from the outside, in the vicinity of cross point of an X electrode and a Y electrode. CONSTITUTION:Y electrodes Y1-Yn of a matrix display part 20 are scanned successively by a scanning circuit 24 through a Y electrode driver 22. This scanning circuit 24 is constituted of an oscillator 26, etc., an output Q of its shift register 28 becomes a scanning signal, and also this signal is supplied as a scanning signal to Y electrodes Y'1-Y'n of an input card 34 for inputting a display data, from the second connector 32. Also, X electrodes X'1-X'm of the input card 34 and X electrodes X1-Xm of the display part 20 are connected to each other through a driver 38, etc. This input card 34 is constituted as shown in the figure, and when a graphic, etc. are drawn on the Y electrode surface side by a resistance paint 42, the same graphic, etc. as said graphic, etc. are displayed by turning on a cross point dot of the display part 20, by a scan of the scanning circuit 24.</p> |
