| 摘要 |
PROBLEM TO BE SOLVED: To reduce the cost by simplifying the structure of a printed board connected to a driver IC and to reduce an overall thickness. SOLUTION: Selection circuits SL(x1), SL(x2)... SL(xn-1), SL(xn) which select a reverse output and a sequential output according to whether or not there is a selection input S are provided for the array order of the input terminals 5A (6A) of the opposite driver ICs 5 (6) on the sides of a driver circuit DR of the respective input terminals 5A (6A) of the driver IC 5 (6), and the opposite input terminals 5A (6A) of the two driver ICs 5 (6) are connected in parallel across the printed board.
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