상세정보
학술지
Stabilizing Color Shift of Tandem White Organic Light-emitting Diodes
- 발행일
- 201901
- 출처
- Journal of Industrial and Engineering Chemistry, v.69, pp.414-421
- ISSN
- 1226-086X
- 출판사
- 한국공업화학회
- 협약과제
- 19HB1500, 디스플레이 일체형 투명 틀렉서블 복합 생체인식 디바이스 핵심기술 개발, 안성덕
- 초록
- One drawback of white organic light-emitting diodes (WOLEDs) is the white angular dependence (WAD). Aimed to suppress the WAD of tandem WOLED to a negligible degree, we investigated the effect of optical resonance and probed various scattering structures. In a two-tandem configuration, the emissive layer physically remote from the reflective metal electrode is causing detrimental WAD. By combining an external nanoparticle based volumetric scattering film and an internal random nanostructure, it was possible to suppress the WAD of tandem WOLED to a value as low as 0.005, which is indistinguishable to human eyes.
- KSP 제안 키워드
- Organic light-emitting diodes(OLEDS), Scattering film, White organic light-emitting diodes, angular dependence, emissive layer(EL), light-emitting diode(LED), metal electrode, optical resonance, tandem configuration