상세정보
학술지
Application of Optical Property-enhancement Film to Improve Efficiency and Suppress Angle Dependence of Top-emitting Organic Light-emitting Diodes
- 발행일
- 202303
- 출처
- Journal of Information Display, v.24 no.1, pp.71-79
- ISSN
- 1598-0316
- 출판사
- 한국정보디스플레이학회
- 초록
- 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%.
- KSP 제안 키워드
- Angle dependence, Electroluminescence spectrum, Encapsulation layer, External Quantum Efficiency, Film structure, Organic light-emitting diodes(OLEDS), Thin film encapsulation, Transmitted light, Uniform light distribution, angular dependence, current efficiency
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