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30.1: Invited Paper : OLED Lifetime Issues in Mobile Phone Industry
Author(s) -
Laäaäperi Antti,
Hyytiäinen Ilkka,
Mustonen Terhi,
Kallio Samu
Publication year - 2007
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 - 10.1889/1.2785521
Subject(s) - mobile phone , phone , oled , focus (optics) , computer science , telecommunications , work (physics) , camera phone , engineering , materials science , optics , artificial intelligence , physics , nanotechnology , mechanical engineering , philosophy , linguistics , layer (electronics)
Lifetime issues have been hot topic through the history of OLED. Escpecially blue color has been problematic. A lot of research work has been carried out in OLED industry to improve the lifetime figures and results have been encouraging. However, it has been difficult to the mobile phone terminal makers to define, what is the acceptable lifetime in phone application. The limited lifetime is visible in the first place in the form of burn in images. These two issues have been the focus of this study.