Input sensing unit and display device including the same
An input sensing unit including a plurality of capacitive sensing electrodes, and a conductive layer disposed on at least a portion of the sensing electrodes, in which the conductive layer overlaps at least a portion of the sensing electrodes in a plan view, and the conductive layer includes a plurality of conductive patterns spaced apart from each other.
1. An input sensing unit comprising:
a plurality of capacitive sensing electrodes connected to a pad unit through connecting lines;
a conductive layer disposed on at least a portion of the sensing electrodes; and
an insulating member disposed between the conductive layer and the sensing electrodes,
wherein:
the conductive layer overlaps at least a portion of the sensing electrodes in a plan view;
the conductive layer comprises a plurality of conductive patterns spaced apart from each other;
the conductive patterns are not connected to any of the connecting lines; and
the conductive patterns are not connected to any other conductive member that is connected to the connecting lines.
2. The input sensing unit of claim 1 , wherein the conductive patterns disposed on different sensing electrodes are spaced apart from each other.
3. The input sensing unit of claim 2 , wherein a distance between the conductive patterns is greater than a distance between the sensing electrodes.
4. The input sensing unit of claim 1 , further comprising:
a first region in which the sensing electrodes are disposed; and
a second region in which the sensing electrodes are not disposed,
wherein the conductive patterns are disposed only in the first region.
5. The input sensing unit of claim 1 , wherein the conductive patterns have a mesh shape.
6. The input sensing unit of claim 1 , wherein:
the conductive patterns comprises conductive metal oxide; and
the conductive metal oxide comprises at least one of indium tin oxide (ITO), indium zinc oxide (IZO), antimony zinc oxide (AZO), indium tin zinc oxide (ITZO), zinc oxide (ZnO), tin oxide (SnO 2 ), and mixtures thereof.
7. The input sensing unit of claim 1 , wherein:
the sensing electrodes comprise:
a first sensing electrode; and
a second sensing electrode spaced apart from the first sensing electrode and forming a capacitance with the first sensing electrode;
the first sensing electrode and the second sensing electrode are provided in plural, respectively;
the input sensing unit further comprises:
a first connector connecting the first sensing electrodes adjacent to each other; and
a second connector connecting the second sensing electrodes adjacent to each other;
the first sensing electrodes and the second sensing electrodes are disposed on the same layer; and
one of the first connector and the second connector is disposed on the same layer as the first sensing electrodes and the second sensing electrodes.
8. The input sensing unit of claim 7 , wherein the conductive pattern disposed on the first sensing electrodes and the conductive pattern disposed on the second sensing electrodes are spaced apart from each other.
9. The input sensing unit of claim 1 , wherein:
the sensing electrode comprises a first sensing electrode column comprising a plurality of first sensing electrodes arranged in a first direction; and
a second sensing electrode column comprising a plurality of second sensing electrodes arranged in the first direction and extending in the first direction;
the first sensing electrode column and the second sensing electrode column are disposed adjacent to each other in a second direction crossing the first direction;
a first one of the first sensing electrodes corresponds to the second sensing electrodes;
the second sensing electrodes corresponding to the first one of the first sensing electrodes, respectively, are electrically connected to the second sensing electrodes corresponding to a second one of the first sensing electrodes adjacent to the first one of the first sensing electrodes; and
the conductive pattern disposed on the first sensing electrode and the conductive pattern disposed on the second sensing electrode are spaced apart from each other.
10. The input sensing unit of claim 1 , wherein:
the sensing electrode comprises a plurality of conductive fine lines forming a mesh shape; and
the conductive pattern is disposed on a mesh hole formed by the conductive fine lines intersecting each other.
11. The input sensing unit of claim 10 , wherein the conductive pattern has a mesh shape.
12. The input sensing unit of claim 1 , wherein:
the sensing electrode comprises a plurality of conductive fine lines forming a mesh shape;
the conductive patterns are disposed on one sensing electrode; and
the conductive patterns are spaced apart from each other with the conductive fine line interposed therebetween in a plan view.
13. The input sensing unit of claim 1 , wherein:
the sensing electrodes and the conductive layer comprise a conductive polymer; and
the insulating member comprises an insulating polymer.
14. A display device comprising:
a substrate;
a display unit disposed on the substrate; and
an input sensing unit disposed on the display unit,
wherein:
the input sensing unit comprises:
a plurality of capacitive sensing electrodes connected to a pad unit through connecting lines;
a conductive layer disposed on at least a portion of the sensing electrodes; and
an insulating member disposed between the conductive layer and the sensing electrodes;
the conductive layer is disposed to overlap at least a portion of the sensing electrodes;
the conductive layer comprises a plurality of conductive patterns spaced apart from each other;
the conductive patterns disposed on different sensing electrodes are spaced apart from each other;
the conductive patterns are not connected to any of the connecting lines; and
wherein a distance between the conductive patterns is greater than a distance between the sensing electrodes.
15. The display device of claim 14 , wherein:
the display unit comprises a plurality of pixel units;
the sensing electrode comprises a plurality of conductive fine lines forming a mesh shape; and
each of the pixel units is disposed in a mesh hole formed by the conductive fine lines intersecting each other.
16. The display device of claim 15 , wherein:
a plurality of conductive patterns are disposed to be spaced apart from each other; and
the conductive patterns and the pixel units correspond to each other, respectively.
17. The display device of claim 15 , wherein:
each of the pixel units comprises:
a first electrode;
a second electrode disposed on the first electrode; and
an emission layer disposed between the first electrode and the second electrode; and
at least one encapsulation layer is disposed between the second electrode and the sensing electrode.
18. The display device of claim 17 , wherein:
the input sensing unit is disposed directly on the encapsulation layer; and
at least one insulating layer is disposed between the sensing electrode and the encapsulation layer.
19. The display device of claim 17 , wherein:
the encapsulation layer comprises a multilayer; and
at least one layer of the multilayered encapsulation layer comprises an inorganic material.