| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of signal lines and the number of components of a state detection circuit.SOLUTION: A state detection circuit 10 includes: a switch circuit IC11 connected to a selection line SL1; and a switch circuit IC12 connected to a selection line SL2. The switch circuit IC11 includes two switches A and C, and performs a logical operation based on the ON/OFF states of those switches and a selection signal S1. Thus, one switch circuit performs the logical operation using the ON/OFF states of two switches. Therefore, it is possible to reduce the number of selection lines and the number of components.SELECTED DRAWING: Figure 2 |
