Display devices including conversion layers with quantum dots and low-refraction color filters

A display device comprising:

• a bank including an opening defining pixels;
• a display layer comprising light emitting elements disposed in the pixels;
• a color conversion layer disposed on the light emitting elements and disposed in the opening and directly contacting the display layer;
• a capping layer overlapping the color conversion layer and overlapping a top surface of the bank in a thickness direction;
• and
• a color filter layer disposed on the capping layer,
• wherein the color filter layer includes a hollow particle;
• wherein the display layer further comprises:
• a second bank disposed on one of a circuit layer or a substrate, the second bank comprising a second opening with one of the light emitting elements disposed therein;
• and
• a reflective layer overlapping the second bank;
• wherein
• the bank has a first height in the thickness direction;
• and
• the second bank has a second height that is less than the first height in the thickness direction.