Eliminate angular color shift in top‐emitting OLEDs through cavity design. Issue 8 (30th May 2019)

• Record Type: Journal Article
• Authors: Dong, Chen; Fu, Xiangyu; Amoah, Stephen; Rozelle, Adam; Shin, Dong‐Hun; Salehi, Amin; Mendes, Juliana; So, Franky
• Is Part Of: Journal of the Society for Information Display. Volume 27:Issue 8(2019)
• Page Start: 469
• Page End: 479
• Publication Date: 2019-05-30
• Subjects: dielectric spacer -- micro‐cavity -- spectrum stability -- top‐emitting OLED (TEOLED) -- viewing angle independent; Information display systems -- Periodicals; 621.38154205
• DOI: 10.1002/jsid.792
• Languages: English
• ISSNs: 1071-0922

Abstract

Abstract: OLEDs suffer from viewing angle dependent spectral shift due to microcavity effects. To address this issue, we introduce a novel top‐emitting OLED with a dielectric spacer that forms multiple cavity modes. The resulting device shows almost no color shift at different viewing angles. Abstract : A multi‐mode top‐emitting OLED having an 8.5‐μm dielectric spacer with a metal reflector is proposed. This structure induces multi‐mode effect and eliminates the spectrum shift with viewing angles caused by the single microcavity.