Abstract: An assembly used to scrape clean a vent pattern with a blade and catch or the scrapings.

Abstract: The disclosure relates to a method and apparatus for micro-patterning organic layers of OLEDs. The disclosed methods do not require applying pressure to the film, nor do they require heat treatment, surface treatment or fast release rate of a stamp from the substrate. The disclosed methods are particularly advantageous over the conventional shadow masking techniques for providing large array fabrication with small features. In one embodiment of the disclosure, one or more organic films are selected for the OLED as a function of their individual or combined sublimation temperature. The material is selected in view of the depth and shape of the features that are to be formed in the organic layer. The disclosed embodiments can provide minimum feature size of 13 ?m which is suitable for high resolution OLED displays.

Abstract: In one embodiment the disclosure relates to an apparatus for depositing an organic material on a substrate, including a source heater for heating organic particles to form suspended organic particles; a transport stream for delivering the suspended organic particles to a discharge nozzle, the discharge nozzle having a plurality of micro-pores, the micro-pores providing a conduit for passage of the suspended organic particles; and a nozzle heater for pulsatingly heating the micro-pores nozzle to discharge the suspended organic particles from the discharge nozzle.