Patent ID: 7067170

Claim:
A method of depositing in a pattern organic material onto an OLED display substrate, comprising: a) providing a manifold and an OLED display substrate in a chamber at reduced pressure and spaced relative to each other; b) providing a structure sealingly covering one surface of the manifold, the structure including a plurality of nozzles with orifices, nozzles extending through the structure into the manifold, and the nozzles being spaced from each other in correspondence with the pattern to be deposited onto the OLED display substrate; c) orienting the OLED display substrate with respect to the nozzles in the structure; d) delivering vaporized organic materials into the manifold; and e) applying an inert gas under pressure into the manifold so that the inert gas provides a viscous gas flow through each of the nozzles, such viscous gas flow transporting at least portions of the vaporized organic materials from the manifold through the nozzles to provide collimated beams of the inert gas and of the vaporized organic materials that exit the nozzles smoothly in streamlines parallel to the walls of the orifice and projecting the collimated beams onto the OLED display substrate thereby depositing organic material on the substrate.