Display device

A display device comprising:

• a substrate including a first pixel area, a second pixel area, and a third pixel area, which are sequentially arranged in a first direction;
• a first lower electrode on the first pixel area;
• a second lower electrode on the second pixel area;
• a third lower electrode on the third pixel area;
• an upper electrode on the first to third lower electrodes;
• and
• a plurality of emission layers between the first to third lower electrodes and the upper electrode,
• wherein the first lower electrode comprises:
• a first reflective electrode on the substrate;
• and
• a first injection control electrode on the first reflective electrode,
• wherein the second lower electrode comprises:
• a second reflective electrode on the substrate;
• and
• a second injection control electrode on the second reflective electrode,
• wherein the third lower electrode comprises:
• a third reflective electrode on the substrate;
• and
• a third injection control electrode on the third reflective electrode,
• wherein the first to third injection control electrodes are spaced apart from each other in the first direction.

A display device comprising:

• a substrate including a first pixel area and a second pixel area;
• a first lower electrode on the first pixel area;
• a second lower electrode on the second pixel area;
• a hole transport layer on the first and second lower electrodes;
• a plurality of emission layers on the hole transport layer;
• an electron transport layer on the plurality of emission layers;
• an upper electrode on the electron transport layer;
• a thin-film encapsulation layer on the upper electrode;
• a first color filter on the thin-film encapsulation layer, the first color filter provided on the first pixel area;
• and
• a second color filter on the thin-film encapsulation layer, the second color filter provided on the second pixel area,
• wherein the first lower electrode comprises:
• a first reflective electrode on the substrate;
• and
• a first injection control electrode on the first reflective electrode,
• wherein the second lower electrode comprises:
• a second reflective electrode on the substrate;
• and
• a second injection control electrode on the second reflective electrode,
• wherein the first and second injection control electrodes include different materials.