Display panel and display device including the same
A display panel includes a substrate, a transistor on the substrate, a storage capacitor on the substrate and electrically connected to the transistor, a metal layer between the substrate and the transistor, a first insulating layer on the metal layer and having a first contact hole, and a wiring connected to the metal layer through the first contact hole, wherein the first insulating layer having a first hole apart from the transistor.
1. A display panel comprising:
a substrate;
a transistor on the substrate;
a storage capacitor on the substrate and electrically connected to the transistor;
a metal layer between the substrate and the transistor;
a first insulating layer on the metal layer and having a first contact opening; and
a wiring connected to the metal layer through the first contact opening,
wherein the first insulating layer having a first opening apart from the transistor.
2. The display panel of claim 1 , wherein the first insulating layer comprises a plurality of sub-layers.
3. The display panel of claim 1 , wherein a number of layers defining the first contact opening is the same as a number of layers defining the first opening.
4. The display panel of claim 1 , wherein a material change of a lateral surface of the first contact opening in a depth direction of the first contact opening is the same as a material change of a lateral surface of the first opening in a depth direction of the first opening.
5. The display panel of claim 1 , further comprising:
a second insulating layer on the first insulating layer and having a second opening overlapping the first opening.
6. The display panel of claim 5 , wherein the second insulating layer further has a second contact opening for connection between a source electrode or a drain electrode of the transistor and a semiconductor layer of the transistor.
7. The display panel of claim 6 , wherein a number of layers defining the second contact opening is the same as a number of layers defining the second opening.
8. The display panel of claim 6 , wherein a material change of a lateral surface of the second contact opening in a depth direction of the second contact opening is the same as a material change of a lateral surface of the second opening in a depth direction of the second opening.
9. The display panel of claim 5 , wherein a width of the second opening is different from a width of the first opening.
10. The display panel of claim 1 , wherein the metal layer has the same voltage level as that of a gate electrode of the transistor.
11. The display panel of claim 10 , further comprising:
a driving voltage line electrically connected to the transistor and the storage capacitor,
wherein the metal layer has the same voltage level as that of the driving voltage line.
12. A display device comprising:
a substrate;
a transistor and a storage capacitor on the substrate;
a metal layer between the substrate and the transistor;
a first insulating layer on the metal layer and having a first contact opening;
a wiring connected to the metal layer through the first contact opening; and
a component arranged below the substrate,
wherein the first insulating layer having a first opening apart from the transistor, and
wherein the component corresponds to the first opening.
13. The display device of claim 12 , wherein a number of layers defining the first contact opening is the same as a number of layers defining the first opening.
14. The display device of claim 12 , wherein a material change of a lateral surface of the first contact opening in a depth direction of the first contact opening is the same as a material change of a lateral surface of the first opening in a depth direction of the first opening.
15. The display device of claim 12 , further comprising:
a second insulating layer on the first insulating layer and having a second opening overlapping the first opening.
16. The display device of claim 15 , wherein the second insulating layer further has a second contact opening for connection between a source electrode or a drain electrode of the transistor and a semiconductor layer of the transistor.
17. The display device of claim 16 , wherein a number of layers defining the second contact opening is the same as a number of layers defining the second opening.
18. The display device of claim 16 , wherein a material change of a lateral surface of the second contact opening in a depth direction of the second contact opening is the same as a material change of a lateral surface of the second opening in a depth direction of the second opening.
19. The display device of claim 15 , wherein a width of the second opening is different from a width of the first opening.
20. The display device of claim 12 , wherein the metal layer has the same voltage level as that of a gate electrode of the transistor.
21. The display device of claim 12 , further comprising:
a driving voltage line electrically connected to the transistor and the storage capacitor,
wherein the metal layer has the same voltage level as that of the driving voltage line.
22. The display device of claim 12 , wherein the substrate comprises:
a first region in which a first display element is positioned;
a second region in which a second display element is positioned; and
a third region in which the first opening is positioned,
wherein the transistor, the storage capacitor, and the metal layer are in the second region, and
wherein the transistor and the storage capacitor are electrically connected to the second display element.
23. The display device of claim 22 , wherein the component corresponds to the second region and the third region, and
wherein the metal layer overlaps a portion of the component.
24. The display device of claim 23 , wherein the component comprises an electronic element that emits and/or receives light.
25. The display device of claim 22 , further comprising:
a second component corresponding to the second region and different from the component.