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3‐2: Invited Paper : Color on Demand – Color‐Tunable OLEDs for Lighting and Displays
Author(s) -
Fröbel Markus,
Schwab Tobias,
Kliem Mona,
Lenk Simone,
Leo Karl,
Reineke Sebastian,
Gather Malte C.
Publication year - 2017
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/sdtp.11558
Subject(s) - gamut , optoelectronics , stack (abstract data type) , materials science , oled , color temperature , signal (programming language) , layer (electronics) , wetting , display device , computer science , computer vision , nanotechnology , composite material , programming language , operating system
A device concept for highly efficient OLEDs is introduced that allows to tune the emission color of the device over a broad range of the CIE color gamut. The approach exploits the different polarities of the positive and negative half‐cycles of an alternating current driving signal to independently address two vertically stacked emission units with complementary color. Ultrathin metal electrodes fabricated by a wetting layer approach are used to achieve good electrical contact to each stack with minimal impact on optical performance.