Display device having a color conversion layer
A display device includes: a first substrate; a second substrate facing the first substrate; a light-amount adjusting layer interposed between the first substrate and the second substrate; and a backlight unit disposed under the first substrate, wherein the second substrate includes a plurality of color conversion layers respectively disposed on a plurality of pixel regions, the color conversion layer includes a partition wall; and a phosphor disposed on areas defined by the partition wall, and the color conversion layer includes an air layer between the second substrate and the phosphor.
1. A display device comprising:
a first substrate;
a second substrate facing the first substrate;
a plurality of color conversion layers disposed under the second substrate; and
a light source disposed under the first substrate, the plurality of color conversion layers being interposed between the first substrate and the second substrate,
wherein:
the plurality of color conversion layers are respectively disposed on a plurality of pixel regions;
the color conversion layer comprises:
a plurality of partition walls;
a phosphor disposed on areas defined by the partition walls; and
an air layer located between adjacent ones of the partition walls and overlapping the pixel region, the pixel region configured to transmit a light of the light source;
the phosphor is disposed between the air layer and the light source;
each of the partition walls comprises a reflective surface facing the air layer; and
a width of the air layer gradually decreases as the air layer is further away from the phosphor.
2. The display device of claim 1 , wherein the color conversion layer is disposed on a bottom surface of the second substrate.
3. The display device of claim 1 , wherein the reflective surface is configured to reflect light toward the air layer.
4. The display device of claim 1 , wherein the color conversion layer further comprises a pattern disposed on the air layer.
5. The display device of claim 1 , further comprising a reflection filter disposed under the color conversion layer.
6. The display device of claim 1 , further comprising a sub-partition wall configured to partition the area defined by the partition walls into two or more areas.
7. The display device of claim 1 , wherein the phosphor comprises a scattering particle.
8. The display device of claim 1 , wherein the phosphor comprises at least one of a red phosphor, a green phosphor, and a blue phosphor.
9. The display device of claim 1 , wherein the phosphor comprises a quantum dot particle.
10. The display device of claim 1 , further comprising a polarizer disposed on the second substrate.
11. The display device of claim 1 , further comprising a polarizer disposed on the first substrate.
12. The display device of claim 1 , wherein a wettability of the phosphor is different from a wettability of the partition walls.