| 摘要 |
PURPOSE:To give the versatility to the correspondence between the driving sender and the detector as well as to decrease the number of driving senders by detecting the state of the scan point of the column direction via the detector and then supplying a group of the scan signals to the driving sender via the scan selector. CONSTITUTION:Driving units 21 and 22 drive the scan points 12...19 connected in the row direction of the scan point matrix, and the state is detected by detectors 13...26 for the scan points connected in the column direction of matrix 20. Then the scan signals sent from detectors 22...26 are divided into more than two scan signal groups by scan selector 30, and either one group of scan signals is selected by the scan selection signals among more than two scan signal groups. And the scan signals delivered from selector 30 are sent to the control unit via driving senders 31 and 32. As a result, the versatility is secured for the correspondence between detectors 22...26 and senders 31 and 32, at the same time decreasing the number of driving senders. |
