16 October 2007 White phosphorescent organic light emitting devices
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Abstract
OLED display manufacturers are interested in white organic light emitting devices (WOLEDTMs) because these devices, together with color filters, eliminate the need for high resolution shadow masks, and are scalable beyond Gen 4 substrates. Additionally, WOLEDs are well suited for general-purpose illumination, since their power efficacies are approaching fluorescent lamps. A new structure was developed that had the following characteristics that were measured using a 20" integrating sphere: at 100 cd/m2 normal luminance, EQE = 35%, power efficacy is 62 lm/W, operating voltage = 4.4 V, CIE = (0.33, 0.43) and CRI = 70.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Brian D'Andrade, Michael S. Weaver, Julie J. Brown, "White phosphorescent organic light emitting devices", Proc. SPIE 6655, Organic Light Emitting Materials and Devices XI, 665512 (16 October 2007); doi: 10.1117/12.731166; https://doi.org/10.1117/12.731166
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