Transparent touch display apparatus
A transparent touch display apparatus including a device substrate, a touch electrode and a routing line. The device substrate may include an emission area and a transmission area. The touch electrode may be disposed on the transmission area of the device substrate. The routing line may be disposed outside the emission area and the transmission area of the device substrate. A transmittance of the touch electrode may be higher than a transmittance of the routing line. Thus, in the transparent touch display apparatus, the reliability of the touch detection may be improved.
1. A touch display apparatus comprising:
a device substrate including an emission area in which light-emitting devices are disposed, and a transmission area spaced apart from a first electrode of each light-emitting device from the light-emitting devices such that the transmission area is non-overlapping with the first electrode of each light-emitting device;
an encapsulating element on the light-emitting devices, the encapsulating element extending on the transmission area;
a routing line on the encapsulating element, the routing line spaced apart from the emission area and the transmission area; and
a touch electrode having a transmittance that is greater than a transmittance of the routing line, the touch electrode electrically connected to the routing line between the emission area and the transmission area,
wherein the touch electrode has a mesh shape overlapping with the transmission area, which extends in a first direction and a second direction different from the first direction.
2. The touch display apparatus according to claim 1 , wherein the second direction is perpendicular to the first direction.
3. The touch display apparatus according to claim 1 , wherein each of the light-emitting devices includes a second electrode on the first electrode, the second electrode having a transmittance that is greater than the transmittance of the first electrode and the transmittance of the routing line, and the second electrode extending onto the transmission area of the device substrate.
4. The touch display apparatus according to claim 3 , wherein the mesh shape of the touch electrode overlaps the second electrode on the transmission area.
5. The touch display apparatus according to claim 3 , wherein each of the light-emitting devices includes a light-emitting layer between the first electrode and the second electrode, the light-emitting layer extending onto a bank insulating layer that is adjacent the emission area, and the transmission area spaced apart from the light-emitting layer.
6. The touch display apparatus according to claim 5 , wherein the bank insulating layer extends onto the transmission area.
7. The touch display apparatus according to claim 1 , further comprising:
a black matrix on the routing line; and
color filters in a region defined by the black matrix, the color filters overlapping with the light-emitting devices,
wherein the transmission area is spaced apart from the color filters and the black matrix.
8. The touch display apparatus according to claim 7 , wherein the black matrix is on a same layer as the color filters.
9. The touch display apparatus according to claim 1 , wherein the routing line has a stacked structure of a first conductive layer and a second conductive layer, and the first conductive layer is on a same layer as the touch electrode.
10. The touch display apparatus according to claim 9 , wherein a transmittance of the first conductive layer is greater than a transmittance of the second conductive layer.
11. The touch display apparatus according to claim 9 , wherein the first conductive layer includes a same material as the touch electrode.
12. The touch display apparatus according to claim 9 , wherein the second conductive layer is between the encapsulating element and the first conductive layer.
13. The touch display apparatus of claim 1 , wherein the touch electrode overlaps the routing line in an area between the emission area and the transmission area and the touch electrode is in direct contact with the routing line in the area between the emission area and the transmission area.
14. A touch display apparatus comprising:
a device substrate including an emission area in which light-emitting devices are disposed, and a transmission area spaced apart from a first electrode of each light-emitting device from the light-emitting devices such that the transmission area is non-overlapping with the first electrode of each light-emitting device;
an encapsulating element on the emission area and the transmission area of the device substrate, the encapsulating element covering the light-emitting devices;
a routing line on the encapsulating element, the routing line including a region between the emission area and the transmission area; and
a touch electrode electrically connected to the routing line, the touch electrode extending on the transmission area,
wherein a transmittance of the touch electrode is greater than a transmittance of the routing line, and the touch electrode includes apertures overlapping with the transmission area.
15. The touch display apparatus according to claim 14 , wherein the routing line has a resistance that is less than a resistance of the touch electrode.
16. The touch display apparatus according to claim 14 , wherein a width of each aperture in a first direction is greater than a width of the touch electrode in the first direction.
17. The touch display apparatus according to claim 14 , wherein the touch electrode is spaced apart from a non-emission region, the non-emission region between the light-emitting devices.
18. The touch display apparatus according to claim 17 , wherein the routing line includes a region overlapping with the non-emission region between the light-emitting devices.