Patent ID: 8991314
Filing Date: 2015-03-31
Classification: B05C,B05D,B41F,B41M,H01L

Abstract:
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.