Roller microcontact printing device and printing method thereof

摘要

A roller microcontact printing device and a printing method of the device are revealed. The roller microcontact printing device includes a transfer module with a transfer roller and a supply module. The supply module provides an isolating solution and a thin film material to the transfer module to form an isolation layer and a thin film layer in turn on the surface of the transfer roller. Then the thin film is transferred to a substrate by the transfer roller. The microcontact print device and method are used in a roll-to-roll printing process. Thus the production efficiency of the thin film layer on the substrate is improved and the cost is reduced.

主权项

1. A roller microcontact printing device comprising:
a transfer module with a transfer roller; and a supply module that is disposed above the transfer module, and provides at least one isolating solution that forms drops to fall to the transfer module, and the drops formed as at least one thin film material onto the transfer module sequentially; wherein the isolating solution is formed as an isolation layer on a surface of the transfer roller during rotating of the transfer roller, the surface of the transfer roller being patterned so that the thin film material is formed as a thin film layer on the isolation layer during rotating of the transfer roller; the thin film layer is transferred completely from the isolation layer to a substrate by the transfer roller while a interfacial free energy between the thin film layer and the substrate is larger than another interfacial free energy between the thin film layer and the isolation layer; the transfer module further includes: a first roller on one side of the transfer roller; a second roller on the other side of the transfer roller; the supply module provides the isolating solution and the thin film material to the second roller so as to form another isolation layer and the thin film layer on a surface of the second roller while the second roller is rotated; the thin film layer is transferred to the isolation layer of the transfer roller by the second roller.