Sharply directed emission in microcavity organic light-emitting diodes with a cholesteric liquid crystal film

抄録

A flexible microcavity organic light emitting diode (OLED) was fabricated and the emitting characteristics were examined. A pair of right- and left-handed CLC films were attached to the microcavity OLED. The introduction of the CLC film improved both the emission bandwidth and directionality, preserving the turn-on voltage and maximum brightness.