Circuit board, electrowetting device using the same, and control circuit

Abstract

This project aims to create a circuit board that can be judged as good before being incorporated into the target device. [Solution] A circuit board (1) is provided with a control circuit (2) including an input transistor (T2), an output transistor (T1), and an output node (N1), wherein in the control circuit (2), a current corresponding to the input to one conductive terminal (8a) of the input transistor (T2) flows to the output node (N1) via the output transistor (T1), and the control circuit (2) has a test circuit element (Td) connected to the other conductive terminal (8b) of the input transistor (T2) and the output node (N1).

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