A signal transmission circuit is provided with: first and second lines L1, L2 to which signals complementary to each other are inputted; first and second buffer circuits BA11, BA21; a first inverter BA12 which connects a first input-side terminal IN1 and a second output-side terminal OUT2; and a second inverter BA22 which connects a second input-side terminal IN2 and a first output-side terminal OUT1.
