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학술지 Reflective Colored Organic Light-Emitting Diodes for Light-Adaptable Display
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저자
임종태, 안준태, 이종희, 문제현, 조성목, 아칠성, 임성주, 이정익
발행일
201611
출처
Journal of Nanoscience and Nanotechnology, v.16 no.11, pp.11843-11848
ISSN
1533-4880
출판사
American Scientific Publishers (ASP)
DOI
https://dx.doi.org/10.1166/jnn.2016.13605
협약과제
16MB1100, 미래광고 서비스를 위한 에너지절감형 환경적응 I/O (Input/Output) 플랫폼 기술 개발, 황치선
초록
A new light-adaptable display (LAD), consisting of reflective, colored, organic light-emitting diodes (RCOLEDs) and an optical shutter (OS), was fabricated. The RCOLED is composed of a color-selective reflective filter (CSRF) functioning in reflective mode under bright conditions, and a transparent OLED (TOLED) working in emissive mode under relatively dark conditions. The OS functions to pass or shield the light generated in the TOLED or from the outer environment. In this RCOLED, the CSRF was designed based on the concept of Fabry-P챕rot interferometry to represent a specific color of red, blue, and green. The TOLED was designed using a low-reflective multi-layered graphene as an top electrode to suppress the distorted optical interference from reflective mirrors in the RCOLED. The color reproduction range calculated from RCOLEDs with a graphene top electrode was dramatically improved (35.0%), compared to that computed from RCOLEDs with a semi-transparent thin-silver top electrode (2.4%). Finally, we demonstrate that the new dual-mode LAD works well.
키워드
Color-selective reflective filter, Light-adaptable display, Low reflective electrode, Multi-layered graphene, Reflective colored organic light-emitting diode, Transparent organic light-emitting diode
KSP 제안 키워드
Dark conditions, Multi-layered graphene, Optical shutter, Organic light-emitting diodes(OLEDS), Reflective mode, Semi-transparent, color reproduction, color-selective, dual mode, light-emitting diode(LED), optical interference