Antenna device and display device including the same
An antenna device according to an embodiment of the present invention includes a dielectric layer, an upper electrode layer disposed on the dielectric layer and including a radiation pattern, a lower electrode layer disposed on the dielectric layer, and a bending connection portion integrally connected to the upper electrode layer and the lower electrode layer on the dielectric layer. An interconnection of a ground layer is implemented with high reliability by the bending connection portion.
1. An antenna device, comprising:
a dielectric layer;
an upper electrode layer disposed on the dielectric layer, the upper electrode layer comprising:
a radiation pattern;
a ground pad; and
a transmission line extending from the radiation pattern to be adjacent to the ground pad;
a lower electrode layer disposed on the dielectric layer; and
a bending connection portion integrally connected to the upper electrode layer and the lower electrode layer on the dielectric layer.
2. The antenna device according to claim 1 , wherein the dielectric layer comprises an upper dielectric layer, a lower dielectric layer and a bent dielectric portion by which the dielectric layer is bent.
3. The antenna device according to claim 2 , wherein the upper electrode layer is disposed on a top surface of the upper dielectric layer, and the lower electrode layer is disposed on a bottom surface of the lower dielectric layer.
4. The antenna device according to claim 2 , wherein the bending connection portion is disposed on a lateral surface of the bent dielectric portion.
5. The antenna device according to claim 2 , wherein a stepped portion is formed by the upper dielectric layer and the lower dielectric layer.
6. The antenna device according to claim 5 , further comprising a sensor structure or an optical film disposed on the stepped portion.
7. The antenna device according to claim 1 , wherein the bending connection portion is integrally connected with the ground pad and the lower electrode layer.
8. The antenna device according to claim 1 , wherein the bending connection portion comprises a plurality of bending lines branched from the ground pad.
9. The antenna device according to claim 1 , wherein the upper electrode layer comprises a plurality of the radiation patterns and a plurality of the ground pads each of which is coupled to each of the plurality of radiation patterns; and
the bending connection portion comprises a plurality of bending connection portions, and the lower electrode layer is integrally connected with the plurality of the ground pads via the plurality of the bending connection portions.
10. The antenna device according to claim 1 , wherein the upper electrode layer, the bending connection portion and the lower electrode layer comprise the same conductive material.
11. The antenna device according to claim 1 , wherein the upper electrode layer and the lower electrode layer comprise different conductive materials from each other.
12. The antenna device according to claim 1 , wherein the radiation pattern comprises a mesh structure.
13. The antenna device according to claim 12 , wherein the lower electrode layer comprises a mesh structure.
14. The antenna device according to claim 12 , further comprising a dummy mesh layer arranged around the radiation pattern.
15. A display device comprising the antenna device according to claim 1 .
16. An antenna device, comprising:
a dielectric layer comprising an upper dielectric layer, a lower dielectric layer, and a bent dielectric portion by which the dielectric layer is bent;
an upper electrode layer disposed on a top surface of the upper dielectric layer, the upper electrode layer comprising a radiation pattern;
a lower electrode layer disposed on a bottom surface of the lower dielectric layer; and
a bending connection portion integrally connected to the upper electrode layer and the lower electrode layer on the dielectric layer.