TY - JOUR
AU - Albertalli, Dave
AB -  Litrex Corporation – San Jose, CA The application of light emitting polymers such as PPV has proven challenging using today’s display manufacturing equipment. Sputtering, spin coating, laser oblation and photo-lithography have all proven difficult processes to apply to color PLED manufacturing. Ink jet technology has been proven a viable technique for depositing multi-color polymers at the resolutions required for color PLED displays. Until recently this wouldn’t have been viable because ink jet technology was too inexact and the resolutions available were too low. However, today’s piezo ink jet heads are high precision components capable of dispensing droplets as small as 14 pico liters. Below is an illustration showing how piezo ink jet heads work. ink jet printers are inadequate in layout, resolution, cleanliness and materials handling to be useful in PLED manufacturing. Our research resulted in the development of a custom hardware system that integrated existing piezo ink jet head components. One of the first requirements in head selection was material compatibility. PLED material like PPV can be dissolved in a variety of solvents including Tolulene, Xylene and Anisole. However low boiling point solvents create challenges in the process by drying too quickly, clogging heads and making the 
TI - 38.3 Application of Polymer LED Materials Using Piezo Ink‐Jet Printing
JO - Sid Symposium Digest of Technical Papers
DO - 10.1889/1.1831738
DA - 2001-06-01
UR - https://www.deepdyve.com/lp/wiley/38-3-application-of-polymer-led-materials-using-piezo-ink-jet-printing-LO41zCzftS
SP - 1049
VL - 32
IS - 1
DP - DeepDyve
ER -