Display device
A display device includes a substrate including first areas and second areas, active layers disposed on the substrate in the second areas, a first conductive layer including first gate electrodes, a first interlayer insulating layer disposed on the first conductive layer and the substrate, a second conductive layer including first and second electrodes which are disposed in each of the first areas to be spaced apart from each other, a second interlayer insulating layer disposed on the second conductive layer and the first interlayer insulating layer, a third conductive layer including source electrodes and drain electrodes which are disposed on the second interlayer insulating layer in the second areas, a via layer disposed on the third conductive layer in the second areas and exposing the first areas and light-emitting elements disposed on the second interlayer insulating layer in each of the first areas.
1. A display device comprising:
a substrate including a plurality of first areas and a plurality of second areas, at least one of the plurality of second areas being disposed between adjacent ones of the plurality of first areas;
active layers disposed on the substrate in the plurality of second areas;
a first conductive layer including first gate electrodes which are disposed on the active layers;
a first interlayer insulating layer disposed on the first conductive layer and the substrate;
a second conductive layer including a first electrode and a second electrode which are disposed in each of the plurality of first areas and are spaced apart from each other;
a second interlayer insulating layer disposed on the second conductive layer and the first interlayer insulating layer;
a third conductive layer including source electrodes and drain electrodes which are disposed on the second interlayer insulating layer in the plurality of second areas;
a via layer disposed on the third conductive layer in the plurality of second areas and exposing the plurality of first areas; and
a plurality of light-emitting elements disposed on the second interlayer insulating layer in each of the plurality of first areas, each of the plurality of light-emitting elements including end portions disposed on the first and second electrodes.
2. The display device of claim 1 , wherein
the via layer surrounds the plurality of first areas, and
the plurality of light-emitting elements do not overlap portions of the first and third conductive layers in the plurality of second areas in a thickness direction of the substrate.
3. The display device of claim 2 , further comprising:
a reflective layer disposed on side surfaces of the via layer and surrounding the plurality of first areas.
4. The display device of claim 3 , wherein the reflective layer is disposed on the second interlayer insulating layer and is not electrically connected to the first and second electrodes.
5. The display device of claim 2 , further comprising:
a first contact electrode electrically contacting the first electrode and first end portions of the plurality of light-emitting elements; and
a second contact electrode electrically contacting the second electrode and second end portions of the plurality of light-emitting elements,
wherein the first and second contact electrodes are disposed on the second interlayer insulating layer in each of the plurality of first areas.
6. The display device of claim 5 , wherein
the first contact electrode is formed in each of the plurality of first areas and electrically contacts the first electrode through a first contact hole that penetrates the second interlayer insulating layer, and
the second contact electrode is formed in each of the plurality of first areas and electrically contacts the second electrode through a second contact hole that penetrates the second interlayer insulating layer.
7. The display device of claim 5 , further comprising:
a first insulating layer disposed on the plurality of light-emitting elements and exposing both end portions of each of the plurality of light-emitting elements; and
a second insulating layer disposed on the first contact electrode, wherein
a first side of the first contact electrode is disposed directly on the first insulating layer, and
a first side of the second contact electrode is disposed directly on the second insulating layer.
8. The display device of claim 2 , wherein the second conductive layer includes capacitive electrodes which are disposed in the plurality of second areas and overlap the first gate electrodes in the thickness direction of the substrate.
9. The display device of claim 2 , wherein
the via layer includes:
a first via layer which is disposed directly on the second interlayer insulating layer; and
a second via layer which is disposed on the first via layer, and
the display device further comprises a fourth conductive layer, the fourth conductive layer including:
first voltage lines which are disposed on the first via layer and are electrically connected to the first electrode; and
second voltage lines which are electrically connected to the second electrode.
10. The display device of claim 9 , wherein
the first electrode electrically contacts a first conductive pattern which is disposed in the third conductive layer and is electrically connected to the source electrodes through a first electrode contact hole that penetrates the second interlayer insulating layer, and
the second electrode electrically contacts a second conductive pattern which is disposed in the third conductive layer and is electrically connected to the second voltage lines through a second electrode contact hole that penetrates the second interlayer insulating layer.
11. The display device of claim 2 , further comprising:
a plurality of color control structures disposed on the plurality of light-emitting elements in different plurality of first areas,
wherein each of the plurality of color control structures includes:
a light-transmitting layer which is disposed in one of the plurality of first areas; and
a first wavelength conversion layer which is disposed in another first area adjacent to the first area in which the light-transmitting layer is disposed.
12. The display device of claim 11 , further comprising:
a first color filter layer disposed on the light-transmitting layer;
a second color filter layer disposed on the first wavelength conversion layer and spaced apart from the first color filter layer; and
a first light-blocking member disposed on the via layer in the plurality of second areas.
13. The display device of claim 12 , wherein
each of the plurality of color control structures includes a second wavelength conversion layer which is disposed in the another first area adjacent to the first area where the first wavelength conversion layer is disposed, and
the display device further comprises a third color filter layer which is disposed on the second wavelength conversion layer.
14. The display device of claim 13 , further comprising:
a color film disposed on a bottom surface of the substrate,
wherein the color filter includes:
a fourth color filter layer which is disposed in the first area where the light-transmitting layer is disposed;
a fifth color filter layer which is disposed in the first area where the first wavelength conversion layer is disposed; and
a sixth color filter layer which is disposed in the first area where the second wavelength conversion layer is disposed.
15. The display device of claim 2 , wherein
the plurality of light-emitting elements include:
first light-emitting elements which are disposed in one of the plurality of first areas; and
second light-emitting elements which are disposed in another first area adjacent to the first area where the first light-emitting elements are disposed, and
the first light-emitting elements and the second light-emitting elements emit light of different colors.
16. A display device comprising:
a substrate;
a via layer disposed on the substrate extending in a first direction and a second direction which intersects the first direction, and surrounding a plurality of first areas;
first transistors disposed in a plurality of second areas in which the via layer is disposed;
a first electrode and a second electrode disposed in each of the plurality of first areas, extending in the second direction, and spaced apart from each other in the first direction;
a plurality of light-emitting elements disposed on the first and second electrodes;
a first contact electrode disposed on the first electrode and electrically contacting first end portions of the plurality of light-emitting elements;
a second contact electrode disposed on the second electrode and electrically contacting second end portions of the plurality of light-emitting elements; and
a reflective layer surrounding the plurality of first areas and disposed on inner sides of the via layer.
17. The display device of claim 16 , wherein the plurality of light-emitting elements do not overlap the first transistors which are disposed in the plurality of second areas in a thickness direction of the substrate.
18. The display device of claim 17 , further comprising:
first voltage lines and second voltage lines disposed in the plurality of second areas,
wherein the first and second electrodes do not overlap the first voltage lines and the second voltage lines in the thickness direction of the substrate.
19. The display device of claim 17 , further comprising:
a color control structure disposed in each of the plurality of first areas and overlapping the plurality of light-emitting elements, the color control structure including:
a light-transmitting layer which is disposed in one of the plurality of first areas; and
a first wavelength conversion layer which is disposed in another first area adjacent to the first area where the light-transmitting layer is disposed.
20. The display device of claim 17 , further comprising:
third areas spaced apart from the plurality of first areas in the second direction and surrounded by the via layer, wherein
the first and second electrodes extend in the second direction and are disposed in portion in the third areas, and
the plurality of light-emitting elements are not disposed in the third areas.