Color conversion panel and display device including the same

A display device, comprising:

• a display panel;
• and
• a color conversion panel on the display panel, the color conversion panel including:
• a substrate overlapping the display panel,
• a light blocking layer between the substrate and the display panel, and
• color conversion layers and a transmission layer between the substrate and the display panel, the color conversion layers including a quantum dot,
• wherein the light blocking layer includes:
• a first sub-light blocking layer overlapping the color conversion layer and the transmission layer, and
• a second sub-light blocking layer between adjacent ones of the color conversion layers and the transmission layer, and
• wherein each of the first sub-light blocking layer and the second sub-light blocking layer includes an external light absorption layer between the substrate and the display panel, and a reflection layer between the external light absorption layer and the display panel.