Display device

1. A display device comprising:

a display substrate including:

a pixel area provided in plurality separated from each other, and

a plurality of through holes separated from each other;

a light-emitting diode provided in plurality arranged on the display substrate in the pixel areas thereof, each light-emitting diode comprising a first contact electrode, a second contact electrode, and a p-n diode between the first contact electrode and the second contact electrode; and

a wiring line provided in plurality on the display substrate, each wiring line electrically connecting adjacent light-emitting diodes to each other,

wherein

among the plurality of wiring lines, a single first wiring line and a single second wiring line which is different from the single first wiring line are connected to a same light-emitting diode,

the first contact electrode is electrically connected to the first wiring line, and the second contact electrode is electrically connected to the second wiring line,

the first wiring line and the second wiring line are in different layers on the display substrate and cross each other,

the single first wiring line contacts the same light-emitted diode connected thereto at two first contact points, and

the second wiring line contacts the same light-emitted diode connected thereto at two second contact points at different positions from the two first contact points.

2. The display device of claim 1 , wherein in a top plan view,

the first wiring line includes a curve and lengthwise extends over pixel areas arranged in a first direction of the display substrate, and

the second wiring line includes a curve and lengthwise extends over pixel areas arranged in a second direction of the display substrate which crosses the first direction.

3. The display device of claim 1 , wherein in a top plan view,

the first wiring line lengthwise extends as a zigzag type line over pixel areas arranged in a first direction of the display substrate, and

the second wiring line lengthwise extends as a zigzag type line over pixel areas arranged in a second direction of the display substrate which crosses the first direction.

4. The display device of claim 1 , further comprising insulating layers alternated with the first wiring line and the second wiring line in a thickness direction of the display substrate, and contact holes defined spaced apart from each other in the insulating layers,

wherein the first wiring line and the second wiring line are respectively electrically connected to the first contact electrode and the second contact electrode via the contact holes in the insulating layers.

5. The display device of claim 4 , wherein

the first wiring line and the second wiring line in different layers on the display substrate define a height difference therebetween, and

the same light-emitting diode to which the first and second wiring lines are connected has a step difference corresponding to the height difference between the first wiring line and the second wiring line.

6. The display device of claim 5 , wherein

the first contact electrode and the second contact electrode are each disposed at a bottom of the p-n diode which faces the display substrate, and

the bottom of the p-n diode which faces the display substrate defines the step difference corresponding to the height difference between the first wiring line and the second wiring line.

7. The display device of claim 4 , the insulating layers comprise:

a first insulating layer between the first wiring line and the second wiring line, and

a second insulating layer between the second wiring line and the light-emitting diode,

wherein

the first wiring line is electrically connected to the first contact electrode via a first contact hole in the first and second insulating layers, and

the second wiring line is electrically connected to the second contact electrode via a second contact hole in the second insulating layer.

8. The display device of claim 7 , further comprising:

a barrier layer in the pixel areas, the barrier layer being between the display substrate and the first wiring line which are respectively in the pixel areas.

9. The display device of claim 1 , further comprising an individual sealing layer respectively on each of the light-emitting diodes arranged in the pixel areas.

10. The display device of claim 1 , wherein

the display substrate is bendable, curvable or rollable along a direction,

each of the plurality of through holes passes through a thickness of the display substrate, and

in a top plan view of the display substrate, each of the through holes has a length which extends in the direction in which the display substrate is bendable, curvable or rollable.

11. The display device of claim 1 , wherein

the first wiring line and the second wiring line respectively applied with electric signals applies the electric signals to the same light-emitting diode, and

the same light-emitting diode applied with the electric signals from the first and second wiring lines connected thereto emits light.