| 摘要 |
A printed circuit board is provided to reduce the size of the printed circuit board by decreasing the number of input/output pads. A printed circuit board includes a driving IC(Integrated Circuit)(50), the first, second and third input pads(51a,51b,51c), the first, second and third output pads(52a,52b,52c). The driving IC receives an input signal from an input pin and outputs a signal corresponding to the input signal. Two pads are selectively connected to the first, second and third input pads to apply the input signal to the driving IC. Two output pads are selectively connected to the first, second and third output pads to transmit the signal output from the driving IC to another driver.
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