Display apparatus

1. A display apparatus comprising:

a substrate;

a reflection layer disposed above the substrate;

an insulating layer disposed on the reflection layer;

a polarizer on the insulating layer;

a light-emitting diode interposed between the reflection layer and the polarizer; and

a first electrode and a second electrode electrically connected to the light-emitting diode;

wherein the insulating layer is in direct contact with an upper surface defining the second electrode, and interposed between the second electrode and the polarizer.

2. The display apparatus of claim 1 , further comprising:

a thin film transistor disposed on the substrate and comprising a semiconductor layer, a gate electrode, a source electrode, and a drain electrode,

wherein the reflection layer is electrically connected to the thin film transistor.

3. The display apparatus of claim 2 , wherein the first electrode is disposed above the substrate,

wherein the reflection layer disposed on the first electrode, and electrically connected to the thin film transistor via the first electrode.

4. The display apparatus of claim 1 , further comprising:

a pixel defining layer comprising a concave region which exposes a central portion of the first electrode,

wherein the reflection layer is disposed above the concave region.

5. The display apparatus of claim 1 , further comprising: a pixel protection layer disposed above the light-emitting diode.

6. The display apparatus of claim 5 , wherein the pixel protection layer covers the reflection layer.

7. The display apparatus of claim 5 , wherein the pixel protection layer further comprises fine particles.

8. The display apparatus of claim 5 ,

wherein the light-emitting diode comprises a p-n diode, a first contact electrode, and a second contact electrode,

wherein the second electrode disposed above the pixel protection layer,

wherein an opening which exposes at least a part of an upper surface of the second contact electrode is defined in the pixel protection layer, and

wherein the second electrode contacts at least a part of the upper surface of the second contact electrode through the opening.

9. A display apparatus comprising:

a substrate;

a reflection layer disposed above the substrate;

an insulating layer disposed on the reflection layer;

a polarizer on the insulating layer; and

a light-emitting diode interposed between the reflection layer and the polarizer,

wherein the polarizer contacts an upper surface of the light-emitting diode.

10. The display apparatus of claim 9 , wherein the insulating layer exposes an upper surface of the light-emitting diode.

11. The display apparatus of claim 9 , wherein a height of an upper surface of the insulating layer is equal to or less than a height of an upper surface of the light-emitting diode with reference to the substrate.

12. The display apparatus of claim 9 , wherein an opening which exposes an upper surface of the light-emitting diode is defined in the insulating layer.

13. A display apparatus comprising:

a substrate;

an insulating layer disposed on the substrate;

a polarizer directly on the insulating layer;

a light-emitting diode interposed between the substrate and the polarizer and disposed in the insulating layer;

a first contact electrode and a second contact electrode both extend from the light-emitting diode toward the substrate; and

a first electrode and a second electrode electrically connected to the light-emitting diode via the first and second contact electrodes, respectively, disposed therebetween the light-emitting diode and the first and second electrodes,

wherein the insulating layer is in direct contact with side s surfaces of the first electrode and the second electrode facing each other.

14. The display apparatus of claim 13 , wherein the light-emitting diode comprises a p-n diode, a first contact electrode, and a second contact electrode,

wherein the first contact electrode and the second contact electrode are disposed on a lower surface of the light-emitting diode.

15. The display apparatus of claim 13 , wherein the light-emitting diode comprises an upper surface, a lower surface, and a side surface connecting the upper surface and the lower surface of the light-emitting diode, and further comprises a metal layer disposed to cover the side surface of the light-emitting diode.

16. The display apparatus of claim 13 , wherein the light-emitting diode comprises a p-n diode, a first contact electrode, and a second contact electrode,

wherein the first contact electrode and the second contact electrode are disposed on the lower surface of the light-emitting diode.

17. A display apparatus comprising:

a substrate;

a reflection layer disposed above the substrate;

an insulating layer disposed on the reflection layer;

a polarizer on the insulating layer; and

a light-emitting diode interposed between the reflection layer and the polarizer,

wherein the polarizer includes a wire grid polarizer.