an display device comprising a plurality of pixel define units is disclosed . each pixel define unit comprises patterned pixel define sections , a first electrode layer , an emission layer and a second electrode layer . the patterned pixel define section has a first lateral surface and a second lateral surface opposite to the first lateral surface . the first electrode layer comprises a first sub - electrode and a second sub - electrode . the first and second sub - electrodes are spaced apart from each other and respectively disposed on the first and second lateral surfaces . the emission layer is disposed on the first electrode layer . the second electrode layer is disposed on the emission layer .