Multiple-stacked monochrome OLEDs for high-brightness micro-display applications

OLED microdisplays are of high interest for augmented-reality (AR) applications. In this paper, we present highly efficient monochrome single (1-u), tandem (2-u) and triple (3-u) unit top emitting OLEDs with a peak wavelength of 560 nm. Current efficiency, emission peak and brightness of these devices are compared using passive test substrates. A transfer from the test structure to a 0.62”-CMOS-backplane with SXGA resolution is shown. The influence of multi-stacked OLEDs on crosstalk is discussed.