Specifically, the light extraction efficiency is improved by converting the transparent electrode waveguide mode to the radiation mode in which the light is radiated from {TAIL ~ the transparent electrode} to the transparent substrate, or by converting the transparent substrate waveguide mode to {HEAD ~ the radiation mode} in which the light is radiated outside from the transparent substrate 
Specifically , the light extraction efficiency is improved by converting the transparent electrode waveguide mode to the radiation mode in which the light is radiated from { TAIL ~ the transparent electrode } to the transparent substrate , or by converting the transparent substrate waveguide mode to { HEAD ~ the radiation mode } in which the light is radiated outside from the transparent substrate
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