title: Low-haze light extraction from organic light-emitting diode lighting with auxiliary electrode by selective microlens arrays.
abstract: Improved out-coupling efficiency and low haze of organic light-emitting diode (OLED) lighting with an auxiliary electrode are demonstrated by selective microlens arrays (SMLAs). The microlens arrays, aligned with the auxiliary electrode, were selectively fabricated, since the fully packed microlens arrays lead to OLED lighting with high haze. The external quantum efficiency and power efficiency of the devices with the SMLAs increased by 32% when compared with the devices without these arrays. Using the SMLAs, dark grid lines in the emission region became brighter, with a low haze, and the spectra of the emitted light had no shift.
authors: Ju Hyun
authors: JH
authors: Hwang
authors: Tae Hyun
authors: TH
authors: Park
authors: Hyun Jun
authors: HJ
authors: Lee
authors: Kyung Bok
authors: KB
authors: Choi
authors: Young Wook
authors: YW
authors: Park
authors: Byeong-Kwon
authors: BK
authors: Ju