Display device

A display device comprising:

• a substrate comprising a first sub pixel region, a second sub pixel region on one side of the first sub pixel region, and a third sub pixel region on the other side of the first sub pixel region;
• reflective bottom electrodes provided on the substrate;
• a blue light emitting layer provided on the reflective bottom electrodes;
• an encapsulation layer provided on the blue light emitting layer;
• partition walls provided on the encapsulation layer and disposed in boundaries of the first to third sub pixel regions;
• a green color conversion layer provided between the partition walls on the encapsulation layer in the first sub pixel region;
• a color conversion layer provided between the partition walls on the encapsulation layer in the second sub pixel region;
• a blue reflective layer having a flat shape and provided on some of the partition walls, the green color conversion layer, and the color conversion layer;
• and
• a blue transmissive layer having an uneven shape and provided between the partition walls on the encapsulation layer in the third sub pixel region;
• wherein the blue transmissive layer is spiky;
• and
• wherein the encapsulation layer has a rough surface below the blue transmissive layer and a flat surface below the green color conversion layer and the color conversion layer.