Fig. 4From: Micro multi-nozzle jet coating of organic thin film for organic light-emitting diode lighting devicesSequential photographs of the micro single-nozzle jetting by applying vacuum suction to the side of the jetting nozzle: a–c photograph images around the tip of a nozzle, a1–c1 cross-sectional schematic diagram of jetting (modified from Shin et al. [23, 24])Back to article page