Film antenna-circuit connection structure and display device including the same
A film antenna-circuit connection structure according to an embodiment of the present invention includes a film antenna including radiation patterns and pads, and a circuit board electrically connected to the film antenna. The film antenna includes connection wirings each of which is electrically connected to each of the pads of the film antenna, and a dummy barrier interposed between neighboring connection wirings of the connection wirings.
1. A film antenna-circuit connection structure, comprising:
a film antenna comprising radiation patterns and pads; and
a circuit board electrically connected to the film antenna, the circuit board comprising:
connection wirings each of which is electrically connected to each of the pads of the film antenna; and
a dummy barrier interposed between neighboring connection wirings of the connection wirings.
2. The film antenna-circuit connection structure according to claim 1 , wherein the dummy barrier has a line shape extending in a direction the same as that of the connection wirings.
3. The film antenna-circuit connection structure according to claim 1 , wherein the dummy barrier comprises pillars independently arranged from each other.
4. The film antenna-circuit connection structure according to claim 3 , wherein the pillars are arranged along an extension direction of the connection wirings between the neighboring connection wirings.
5. The film antenna according to claim 4 , wherein the pillars are arranged in a zigzag construction along the extension direction of the connection wirings.
6. The film antenna-circuit connection structure according to claim 3 , wherein the circuit board further comprises an insulation layer, and the pillars are embedded in the insulation layer.
7. The film antenna-circuit connection structure according to claim 6 , wherein the circuit board further comprises a dummy ground pattern disposed on a bottom surface of the insulation layer to be electrically connected to at least one of the pillars.
8. The film antenna-circuit connection structure according to claim 1 , further comprising a driving integrated circuit chip electrically connected to the connection wirings of the circuit board.
9. The film antenna-circuit connection structure according to claim 8 , wherein the driving integrated circuit chip comprises driving pads each of which is electrically connected to each of the connection wirings.
10. The film antenna-circuit connection structure according to claim 9 , wherein the driving integrated circuit chip further comprises a dummy pad electrically connected to the dummy barrier.
11. The film antenna-circuit connection structure according to claim 1 , wherein the film antenna further comprises transmission lines connecting the radiation patterns and the pads with each other.
12. The film antenna-circuit connection structure according to claim 1 , wherein the film antenna further comprises a dielectric layer, and the radiation patterns and the pads are disposed on a top surface of the dielectric layer.
13. The film antenna-circuit connection structure according to claim 12 , wherein the film antenna further comprises a ground layer formed on a bottom surface of the dielectric layer.
14. A display device comprising the film antenna-circuit connection structure according to claim 1 .