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Development of flexible organic light‐emitting diode on barrier film and roll‐to‐roll manufacturing
Author(s) -
Tsujimura Takatoshi,
Fukawa Junichi,
Endoh Kiyoshi,
Suzuki Yuuji,
Hirabayashi Kazuhiko,
Mori Takahiro
Publication year - 2014
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1002/jsid.261
Subject(s) - oled , materials science , roll to roll processing , optoelectronics , flexibility (engineering) , light emitting diode , diode , transmission rate , computer science , transmission (telecommunications) , composite material , telecommunications , layer (electronics) , statistics , mathematics
To come out with a successful organic light‐emitting diode (OLED) lighting business, it is very important to have clear differentiation of OLED from LEDs. Flexible OLED has merits, such as capability to be mounted on the curved wall, which is not easy for LEDs to achieve the feature. There are several approaches to make flexible OLEDs especially among those plastic barrier films that can bring high level of flexibility, which could not be achieved by any conventional lighting method. In this paper, barrier films with various water vapor transmission rate values, including 10 − 6 order, are applied, and the conditions to have almost no dark spot growth under 85 °C and 85% high temperature/humidity test are shown. Flexible OLED panels are manufactured with the world's first roll‐to‐roll equipment using plastic barrier film.