논문 해외 국제전문학술지(SCI급) Application of optical property-enhancement film to improve efficiency and suppress angle dependence of top-emitting organic light-emitting diodes
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2023-03
- 저자명 Baeksang Sung, Chul Woong Joo, Jun Chang Yang, Akpeko Gasonoo, Seung Wan Woo, Jae-Hyun Lee, Steve Park, and Jonghee Lee
- 학술지명 Journal of Information Display
- 발행처명 Taylor Francis LTD
- 발행국가 해외
- 논문언어 한국어
- 전체저자수 8
홈페이지논문 초록 (Abstract)
In this paper, we propose the application of an optical property-enhancement film that complements the angular dependence and total reflection of top-emitting organic light-emitting diodes (TEOLEDs). The optical property-enhancement film is composed of a porous pyramid arrangement applied on a thin-film encapsulation layer of TEOLEDs and is applied to distribute the transmitted light evenly. The results confirm that the change in the electroluminescence spectrum for each angle was effectively reduced because the TEOLEDs demonstrated uniform light distribution. In addition, reducing the total internal reflection in the film structure made it possible to improve the external quantum efficiency by approximately 35% and current efficiency by 38%.