Three-Color, Tunable, Organic Light-Emitting Devices

Publication Type:

Journal Article


Science, American Association for the Advancement of Science, Volume 276, Issue 5321, p.2009-2011 (1997)




1997, 2013 and earlier


An independently controlled, three-color, organic light-emitting device was constructed with a vertically stacked pixel architecture that allows
for independent tuning of color, gray scale, and intensity. The 12-layer
device structure consists of sequentially stacked layers of metal oxide,
amorphous organic, crystalline organic, and metal thin films deposited by
a combination of thermal evaporation and radio-frequency sputtering. Each
of the three addressable colors is sufficiently bright for flat panel
video display applications. A novel inverted structure is used for the
middle device in the stack to lower the maximum drive voltage of the
compound pixel.