3 March 2003 Light emitting polymer materials for full-color displays
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In the last few years, industrial research into materials fulfilling the needs of the maturing OLED display industry has intensified considerably. A first generation of polymers (phenyl-PPVs) is now being commercially exploited in first monochrome polymer LED displays. Nevertheless, due to market interest, there is a huge demand for materials for full-color OLED displays. After giving some initial results on our work in this field at last year's SPIE, we will report on the progress in the development of polymers for red, green, and blue emission. Our main focus here lies on the improvement of the properties of various polymers derived from the spiro-bifluorene core. Depending on the color, the main issues vary strongly: Whereas e.g. for BLUE materials, efficiency, color coordinates, and processibility fulfill already commercial demands, operational lifetime still needs to be improved strongly. For RED materials, in contrast, the operational lifetime is already excellent, whereas the efficiency and the driving current still need to be improved. For GREEN acquiring saturated emission, whilst maintaining the other properties (high efficiency, long operational lifetime), is still challenging. Also, we will report on advances in full-color patterning, especially techniques based on Ink-Jet Printing.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hubert Spreitzer, Hubert Spreitzer, Heinrich Becker, Heinrich Becker, Esther Breuning, Esther Breuning, Aurelie Falcou, Aurelie Falcou, Kevin Treacher, Kevin Treacher, Arne Busing, Arne Busing, Amir Parham, Amir Parham, Philipp Stossel, Philipp Stossel, Susanne Heun, Susanne Heun, Juergen Steiger, Juergen Steiger, } "Light emitting polymer materials for full-color displays", Proc. SPIE 4800, Organic Light-Emitting Materials and Devices VI, (3 March 2003); doi: 10.1117/12.451905; https://doi.org/10.1117/12.451905


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