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P‐25: Improvement of Coupling Efficiency of OLED by Using Centered‐Hollow Micro‐lens Array Film together with V‐Grooves
Author(s) -
Jiang JengRen,
Lee PeiYu,
Chen YiJiun,
Lee JiunHaw,
Chiu TienLung,
Lin Hoang Yan
Publication year - 2012
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/j.2168-0159.2012.tb06104.x
Subject(s) - oled , materials science , coupling (piping) , optics , pixel , partition (number theory) , luminance , substrate (aquarium) , optoelectronics , lens (geology) , reflection (computer programming) , physics , computer science , nanotechnology , layer (electronics) , mathematics , composite material , oceanography , combinatorics , geology , programming language
The coupling efficiency of OLED can be increased by centered‐hollow micro‐lens array films with pixel‐partition. While the number of pixel‐partition increases, the total internal reflection of adjacent centered‐hollow arrangement occurs. We provide an additional coupling path through triangle grooves on the substrate. The results show that the luminance efficiency enhancement at normal direction is improved from 63% to 116%.