Universal Display Introduces Light-Blue PHOLED Material
Universal Display Corp. (Ewing, NJ), a leader in phosphorescent OLED (PHOLED) technology and materials, is unveiling a light-blue, PHOLED system that enables energy-efficient displays and white-lighting applications. The UniversalPHOLED emitter system provides possible performance benefits for display and lighting applications that entail high-efficacy, warm-white emissions.
The light-blue emitter system offers CIE coordinates of 0.17, 0.37 and a peak wavelength of 472nm. It also provides a luminous efficiency of >45 candelas per ampere, corresponding to >20% external quantum efficiency at 1,000 candelas per sq. meter. Under accelerated test conditions, this new emitter system demonstrates an operating lifetime of approximately 9,000 hours, to 50% of an initial luminance of 1,000 cd/sq. meter.
The company states the performance gains represent a 30% increase in luminous efficiency and an almost 100% increase in operating lifetime, as compared to Universal Display’s earlier-generation light-blue PHOLED emitter system.
Universal Display works and partners with such organizations as Princeton University, the University of Southern California, the University of Michigan and PPG Industries Inc. The company has also established relationships with companies such as AU Optronics Corp., Chi Mei EL Corp., DuPont Displays Inc., Konica Minolta Technology Center Inc., LG Display Co. Ltd., Samsung Mobile Display Co. Ltd., Seiko Epson Corp., Sony Corp., Showa Denko K.K. and Tohoku Pioneer Corp.