| 摘要 |
<p>PURPOSE:To decrease the number of terminals of a driving IC circuit and to enable various levels and polarities of a control signal to be handled, by establishing a first pattern circuit for selecting whether a control signal is directly outputted or not, a second pattern circuit for selecting whether output is performed or not by execution of partial pressure, and a third pattern circuit for selecting whether output is performed or not by reversing the polarity. CONSTITUTION:A first pattern circuit for selecting whether a control signal to be inputted is directly outputted or not is composed of a conductor pattern L1. Further, a second pattern circuit for selecting whether the signal to be inputted is outputted or not by partial pressure is composed of terminals P2, P3, P4, P5, P6, P7 and conductor patterns L2, L3. Furthermore, a third pattern circuit for selecting whether polarity of the control signal to be inputted is outputted or not by reversing said polarity is composed of the terminals P2, P3, P4, P5, P6 and the conductor patterns L2, L3. Therefore, by selection of functions of those pattern circuits, various levels and polarities of control voltage can be handled by the same circuit substrate 2. Further, a controlling terminal of a driving IC circuit is also used for a stroke signal terminal, and the number of terminals can be decreased.</p> |
