Compensation of machine directional register in a multi-layer roll-to-roll printed electronics

For the adaption of roll-to-roll printing method to the printed electronics, it is mandatory to increase the resolution of register control. A compensation method was proposed to cancel out the disturbance of the machine directional register from upstream span. The proposed compensator could be used to improve the performance of the machine directional register controller in multi-layer roll-to-roll printed electronics. The proposed compensator was experimentally verified through various operating conditions. The results show that the proposed compensator improves the control performance of machine directional register in overcoming the upstream disturbances.