A full color 5.2 in 1/4 VGA passive-matrix organic LED display has bee developed. The display has 320(]3)]240
pixels with an equivalent pixel size of 0.33]0.33 mm2, white peak luminance of over 150 cd/m2, and power consumption
of 6 W. It uses a cathode patterning method with cathode separators and an RGB emitters selective deposition method
by a high accuracy mask moving system. Passivation "lm for OLED has been also developed. It turned out that the EL
characteristics remained almost identical and the dark spot growth were negligible for practical use after the storage
tests. ( 2000 Elsevier Science B.V. All rights reserved.