Berlin 2005 – wissenschaftliches Programm
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SYOO: Organic Optoelectronics and Photonics
SYOO 6: Poster
SYOO 6.11: Poster
Montag, 7. März 2005, 18:00–20:00, Poster TU A
Designing color filters for highly efficient full-color OLED displays — •Dirk Buchhauser1, Christoph Gaerditz2, Carsten Tschamber2, Wiebke Sarfert2, Ralph Paetzold3, Karsten Heuser3, Arvid Hunze3, Wolfgang Rogler3, and Jürgen Rüdiger Niklas1 — 1Department of Experimental Physics, University of Freiberg, Germany — 2Department of Materials Science VI, University of Erlangen-Nuremburg, Germany — 3Siemens AG, CT MM 1, Paul-Gossen-Str. 100, 91052 Erlangen, Germany
The application of organic light emitting diodes (OLEDs) within fullcolor displays provides brilliant colors, high contrasts and high luminance. By using RGB color filters, the transmission spectra can be adapted to the emissive spectra of the polymer in order to achieve the best efficiency.
We show the modeling of an optimized and efficient color filter setup for OLEDs to tune the color for different broad band emitter polymers for display application. This results in a color filter setup which is able to provide a wide color gamut for video and picture applications.
Additionally we use simulations to calculate emitter spectra for a full color display with color filters, which allows driving all single RGB pixels with the same current to reach the CIE whitepoint (0.33/0.33). No-dqTailoringNo-dq the emission spectra to the color filters in such a way will also result in longer lifetimes due to efficiency improvement.