DRUM FOR ROLL-TO-ROLL DEPOSITION ROLL-TO-ROLL DEPOSITION APPARATUS AND FILM ROLL

摘要

According to the present invention, a drum for roll-to-roll deposition rotates about a longitudinal axis. The drum is circular in a widthwise cross-section and has a shape in which opposite longitudinal edge portions have a narrower width than a longitudinal central portion. By using the drum for roll-to-roll deposition according to the present invention, it is possible to remove wrinkles occurring on a flexible substrate when a roll-to-roll deposition process is performed. As a result, it is possible to manufacture a film roll having a deposition layer with excellent widthwise thickness uniformity.