Display apparatus with integrated touch screen
Disclosed is a display apparatus with integrated touch screen, which prevents short circuit from occurring between bridge electrodes and first and second touch electrodes. The display apparatus includes a light emitting device layer disposed on a first substrate, an encapsulation layer disposed on the light emitting device layer, and a touch sensing layer disposed on the light emitting device layer, the touch sensing layer including a plurality of first touch electrodes, a plurality of second touch electrodes, a plurality of bridge electrodes, and a step height cover layer covering a step height caused by at least one of the plurality of first touch electrodes, the plurality of second touch electrodes, and the plurality of bridge electrodes.
1. A display apparatus with integrated touch screen, the display apparatus comprising:
a light emitting device layer;
an encapsulation layer on the light emitting device layer and including at least one inorganic layer and at least one organic layer; and
a touch sensing layer on the encapsulation layer, the touch sensing layer including:
a plurality of first touch electrodes;
a plurality of second touch electrodes;
a plurality of bridge electrodes disposed on the encapsulation layer; and
a step height cover layer covering a step height caused by the plurality of bridge electrodes, and wherein the step height cover layer is disposed on the plurality of bridge electrodes; and
a touch insulation layer disposed on the plurality of bridge electrodes and the step height cover layer,
wherein the plurality of first touch electrodes and the plurality of second touch electrodes are disposed on the touch insulation layer,
wherein the touch insulation layer is disposed between the step height cover layer and the plurality of first touch electrodes and second touch electrodes, and the step height cover layer is disposed between the plurality of bridge electrodes and the touch insulation layer, and
wherein the step height cover layer, disposed between the plurality of bridge electrodes and the touch insulation layer, is in direct contact with an upper surface and a lateral surface of the plurality of bridge electrodes to cover the edge region.
2. The display apparatus of claim 1 , wherein the step height cover layer is provided to cover each of the plurality of bridge electrodes.
3. The display apparatus of claim 2 , wherein
the plurality of first touch electrodes are connected to the plurality of bridge electrodes through a plurality of first contact holes which pass through the touch insulation layer and the step height cover layer and expose the plurality of bridge electrodes.
4. The display apparatus of claim 1 , wherein
the plurality of first touch electrodes are connected to the plurality of bridge electrodes through a plurality of first contact holes which pass through the touch insulation layer and expose the plurality of bridge electrodes.
5. The display apparatus of claim 1 , wherein the step height cover layer comprises an organic material.
6. A display apparatus with integrated touch screen, the display apparatus comprising:
a light emitting device layer;
a touch sensing layer on the light emitting device layer, the touch sensing layer including:
a first plurality of touch electrodes;
a second plurality of touch electrodes;
a plurality of bridge electrodes connected to the first plurality of touch electrodes through a contact hole;
a step height cover layer between the first plurality of touch electrodes and the plurality of bridge electrodes; and
a touch insulation layer between the first plurality of touch electrodes and the plurality of bridge electrodes, wherein the touch insulation layer is disposed on the step height cover layer,
wherein the contact hole passes through the touch insulation layer, and
wherein the step height cover layer is disposed between the plurality of bridge electrodes and the touch insulation layer, and the step height cover layer, disposed between the plurality of bridge electrodes and the touch insulation layer, covers an upper surface and a lateral surface of the plurality of bridge electrodes to cover an edge portion of the plurality of bridge electrodes.
7. The display apparatus of claim 6 , wherein
the step height cover layer is on the plurality of bridge electrodes.
8. The display apparatus of claim 6 , wherein the first plurality of touch electrodes and the second plurality of touch electrodes are on the touch insulation layer, the plurality of bridge electrodes on a different layer of the touch sensing layer from the touch insulation layer, the first plurality of touch electrodes and the second plurality of touch electrodes spaced apart and electrically insulated from each other.
9. The display apparatus of claim 6 , wherein the step height cover layer covering a portion of the plurality of bridge electrodes and a portion of the first plurality of touch electrodes adjacent to the contact hole formed by extending the first plurality of touch electrodes.
10. The display apparatus of claim 6 , wherein the step height cover layer covering the plurality of bridge electrodes.
11. The display apparatus of claim 6 , wherein the plurality of bridge electrodes are spaced apart from each other, the step height cover layer covering an edge of the spaced apart bridge electrodes.
12. The display apparatus of claim 6 , wherein the plurality of bridge electrodes are spaced apart from each other, the step height cover layer covering a portion of the spaced apart bridge electrodes and the step height cover layer being spaced apart from the contact hole.