Abstract
The guest-emitter doped system has been reported to give a bright electroluminescence (EL). By doping the emitter layer with highly fluorescent dyes, emission colors can be changed and the brightness is also increased. Low work function metals are generally used as a cathode to ensure easier electron injection into organic materials and are expected to reduce driving voltage and increase quantum efficiency for EL devices. We have developed a high luminance dot-matrix display using an organic EL device for the first time.
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