Organic light-emitting display device with modified electrode surface

An organic light-emitting display device comprising:

• a first substrate and a second substrate;
• an array of a plurality of pixels disposed between the first and second substrates, each pixel comprising an organic light-emitting device, the array comprising a pixel defining layer defining a plurality of light-emitting areas corresponding to the plurality of pixels, wherein light from the organic light-emitting device is emitted toward the second substrate;
• a thin film transistor (TFT) electrically connected to the organic light-emitting device and located under the pixel defining layer such that the TFT does not overlap the plurality of light-emitting areas when viewed in a vertical direction from the second substrate toward the first substrate, the TFT comprising a metallic electrode;
• and
• the metallic electrode comprising a laser-treated surface on the side facing the second substrate, wherein the laser-treated surface has an optical property that is different from that of the same surface but for a laser-treatment.