Displaying apparatus having light emitting device, method of manufacturing the same and method of transferring light emitting device
A displaying apparatus includes a pixel unit. The pixel unit includes at least one pixel having a light emitting device and a light conversion layer for converting a first wavelength of light of the light emitting device into a second wavelength of light different from the first wavelength; and an insulation layer covers side surfaces of the light emitting device and the light conversion layer.
1. A displaying apparatus, comprising:
a pixel unit including:
at least one pixel including a light emitting device and a light conversion layer for converting a first wavelength of light of the light emitting device into a second wavelength of light different from the first wavelength of light; and
an insulation layer covering side surfaces of the light emitting device and the light conversion layer.
2. The displaying apparatus of claim 1 , wherein the insulation layer further covers an upper surface of the light emitting device.
3. The displaying apparatus of claim 2 , further comprising a terminal part provided on the insulation layer and electrically connected to the light emitting device through the insulation layer.
4. The displaying apparatus of claim 3 , wherein the terminal part includes a common pad electrically connected to a plurality of light emitting devices.
5. The displaying apparatus of claim 2 , wherein the insulation layer comprises a first insulation layer contacting the side surfaces of the light conversion layer, and a second insulation layer contacting the side surfaces of the light emitting device.
6. The displaying apparatus of claim 5 , wherein the first insulation layer surrounds the light conversion layer and has a thickness equal to a thickness of the light conversion layer.
7. The displaying apparatus of claim 5 , wherein the insulation layer comprises a black matrix material.
8. The displaying apparatus of claim 1 , wherein the light conversion layer includes a fluorescent substance or a quantum dot.
9. The displaying apparatus of claim 8 , wherein the light emitting device is configured to emit blue or ultraviolet (UV) light.
10. The displaying apparatus of claim 1 , further comprising:
a substrate including a pixel area and a non-pixel area,
wherein the light emitting device and the light conversion layer disposed on the pixel area, and the insulation layer covers the non-pixel area.
11. The displaying apparatus of claim 10 , wherein the light conversion layer is disposed between the light emitting device and the substrate.
12. The displaying apparatus of claim 1 , wherein the pixel unit further comprises a pixel including a light emitting device and a light passing layer through which light emitted from the light emitting device passes.
13. The displaying apparatus of claim 1 , further comprising:
a panel substrate including a circuit,
wherein the light emitting device is electrically connected to the circuit of the panel substrate.
14. The displaying apparatus of claim 1 , wherein the light emitting device comprises a first conductivity type semiconductor layer, an active layer and a second conductivity type semiconductor layer.
15. The displaying apparatus of claim 1 , further comprising:
a light reflection layer provided on a side surface of the light conversion layer.
16. The displaying apparatus of claim 1 , further comprising:
an adhesive layer disposed between the light emitting device and the light conversion layer.
17. A displaying apparatus, comprising:
a pixel unit comprising:
a plurality of pixels spaced apart from each other, each pixel including a light emitting device configured to emit ultraviolet (UV) light or blue light and a light passing layer; and
an insulation layer disposed between the plurality of pixels,
wherein at least one of the light passing layers includes a light conversion layer configured for converting a first wavelength of light of the light emitting device into a second wavelength of light different from the first wavelength of light.
18. The displaying apparatus of claim 17 , wherein the light conversion layer includes a fluorescent substance or a quantum dot.
19. The displaying apparatus of claim 17 , wherein the insulation layer comprises a first insulation layer surrounding light passing layers and a second insulation layer surrounding the light emitting devices.
20. The displaying apparatus of claim 17 , further comprising terminal parts provided on the insulation layer and electrically connected to the light emitting devices.