McCarter & English, LLP
Light emitting device
A light emitting device includes a substrate layer, first and second metal layers sequentially formed on the substrate layer, and an organic material layer formed between the first and second metal layers. The first metal layer has a uniform thickness or has metal portions or further has an open portion exposing a portion of the surface of the substrate layer. The organic material layer includes a hole transport material and an electron transport material in contact with one another. An interaction between the hole transport material and the electron transport material generates exciplexes capable of emitting light having a peak wavelength in a first range, and a coupling is generated between the first and second metal layers. By adjusting the distance between the first and second metal layers or the thickness of the first metal layer, the peak wavelength of the light is shifted to a second range and/or a third range.
Industrial Technology Research Institute
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Cheng-Chang Guan-Yu Jung-Yu Yi-Ping Jin-Han Shih-Pu
Chen Chen Li Lin Wu Chen