Author:
Lee Keunsoo,Lee Jonghee,Kim Eunhye,Lee Jeong-Ik,Cho Doo-Hee,Lim Jong Tae,Joo Chul Woong,Kim Joo Yeon,Yoo Seunghyup,Ju Byeong-Kwon,Moon Jaehyun
Abstract
Abstract
An optical functional film applicable to various lighting devices is demonstrated in this study. The phase separation of two immiscible polymers in a common solvent was used to fabricate the film. In this paper, a self-organized lens-like structure is realized in this manner with optical OLED functional film. For an OLED, there are a few optical drawbacks, including light confinement or viewing angle distortion. By applying the optical film to an OLED, the angular spectra distortion resulting from the designed organic stack which produced the highest efficiency was successfully stabilized, simultaneously enhancing the efficiency of the OLED. We prove the effect of the film on the efficiency of OLEDs through an optical simulation. With the capability to overcome the main drawbacks of OLEDs, we contend that the proposed film can be applied to various lighting devices.
Funder
The R&D program of MOTIE/KEIT
Subject
Electrical and Electronic Engineering,Mechanical Engineering,Mechanics of Materials,General Materials Science,General Chemistry,Bioengineering
Cited by
15 articles.
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