FEEDFORWARD CONTROL OF DOWNSTREAM REGISTER ERRORS FOR ELECTRONIC ROLL-TO-ROLL PRINTING SYSTEM

摘要

The present invention relates, in general, to a continuous roll-to-roll printing method for manufacturing electronic devices, and, more particularly, to an ultra-precision register control method in a continuous roll-to-roll printing process for manufacturing electronic devices, which compensates for register errors attributable to variations in the speed of upstream printing cylinders by using a feedforward control logic, thus eliminating additional register errors. The ultra-precision register control method in a continuous roll-to-roll printing process for manufacturing electronic devices, register errors, attributable to variations in speed of upstream printing cylinders are compensated for using feedforward control logic. According to the present invention, the effect of compensating for only the register errors of a current span is obtained, and thus there is an excellent advantage in that precise register control of a printing system can be realized compared to the case using typical feedback control logic.