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Definition: PHOLED


(PHosphorescent OLED) An OLED material that provides greater efficiency than conventional fluorescent OLEDs. With its UniversalPHOLED brand of chemicals first commercially deployed in 2003, Universal Display Corporation (UDC) in Trenton, New Jersey is the leader in phosphorescent OLED technology.

PHOLED is a small molecule, non-polymeric technology that consumes less power than LCDs. Combined with the intense colors of OLED, PHOLEDs have helped OLED become the dominant display technology for the 21st century. See OLED.




PHOLED Layers
An OLED is a series of organic thin films sandwiched between two electrodes, all deposited onto a substrate. When electricity is applied, charge carriers (holes and electrons) are injected from the anode and cathode into the PHOLED layer and recombine to form excitons, which cause photons to emit. (Image courtesy of Universal Display Corporation, www.oled.com)