Light extraction and customized optical distribution from plastic micro-optics integrated OLEDs

Autor: S. Sinesi, G. Rotaris, S. Caria, Michael T. Gale, Viviana Biondo, Roberto Zamboni, Susanne Westenhofer, M. Murgia, P. Melpignano
Rok vydání: 2006
Předmět:
Zdroj: SPIE Proceedings.
ISSN: 0277-786X
DOI: 10.1117/12.665515
Popis: An OLED device suitable for automobile ceiling lights has been designed, fabricated and evaluated. The OLED structure is fabricated on a thin (120 µm), flexible polymer foil with integrated micro-optics to achieve customized beam shaping in the far field. A pixelated OLED structure matched to a patch-pad microlens matrix was used to convert the OLED Lambertian emission into a Gaussian-shaped illumination beam. Both refractive and diffractive microlenses were investigated. The integrated micro-optics OLED architecture reduces light losses due to waveguiding effects and effectively increases the light extraction by up to 70%.
Databáze: OpenAIRE