 CNT film deposition methods enable conventional semiconductor fabrication of more than 10,000 CNT devices per chip.Printed CNT thin-film transistors (TFTs) are attractive for driving organic light-emitting diode displays, showing higher mobility than amorphous silicon (~1 cm2 V−1 s−1) and can be deposited by low-temperature, nonvacuum methods.Flexible CNT TFTs with a mobility of 35 cm2 V−1 s−1 and an on/off ratio of 6 were demonstrated.