Modeling OLED lighting using Monte Carlo ray tracing and rigorous coupling wave analyses

Monte Carlo ray tracing and rigorous coupling wave analyses (RCWA) are linked together for modeling the lighting property of organic light-emitting diodes (OLED). The proposed method considers the thin-film effect and the whole geometrical structure of OLED instead of a single exciton, realizing a mixed-level and comprehensive model with reduced simulation complexity. According to experimental results, the proposed model has demonstrated an acceptable accuracy for the conventional planar OLED. Additionally, corrugated OLEDs are investigated for the blue spectrum enhancement. The simulations from the proposed model indicate that the reduced corrugated period or duty cycle contributes to blue-shift of the EL spectra.