A laser-based forward transfer direct writing technique was used to deposit
phosphor powder screens for high-resolution display applications. With thi
s technique, called matrix-assisted pulsed-laser evaporation direct write,
dense oxide phosphor powders of Y2O3:Eu (red) and Zn2SiO4:Mn (green) were d
eposited on alumina and polymer substrates. All processing was performed in
air at room temperature. Cathodoluminescent measurements showed that the l
uminous efficiency of the phosphor powders was not degraded by the depositi
on process. A 6x6 red and green matrix with pixel sizes of 100 mu m (250 li
nes per inch) with a 100 mu m spot size is demonstrated; however, with smal
ler spot sizes this technique is easily scalable to pixel sizes < 10 mu m (
> 2500 lines per inch). (C) 2000 American Institute of Physics. [S0003-6951
(00)00710-5].