Film antenna and display device including the same

Patent metadata

Field	Value
Publication number	US-11276917-B2
Application number	US-202016861560-A
Country	US
Kind code	B2
Filing date	Apr 29, 2020
Priority date	Nov 6, 2017
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

A film antenna according to an embodiment of the present invention includes a dielectric layer, a pad disposed on the dielectric layer and an antenna pattern inclined with respect to the pad on the dielectric layer. A generation of a side lobe is prevented by the inclined orientation of the antenna pattern. A radiation in a −Z-axis direction may be suppressed to enhance a signal intensity of a radiation pattern and prevent a signal loss. A display device including the film antenna is also provided.

First claim

What is claimed is:

1. A film antenna, comprising:
a dielectric layer;
a pad disposed on the dielectric layer; and
an antenna pattern formed on the dielectric layer and inclined with respect to the pad, the antenna pattern including a metal or a transparent metal oxide,
wherein the antenna pattern comprises a radiation pattern physically spaced apart from the pad, and a transmission line mediating the radiation pattern and the pad.

2. The film antenna according to claim 1 , wherein the radiation pattern and the transmission line are inclined with respect to the pad.

3. The film antenna according to claim 2 , wherein the radiation pattern and the transmission line extend with the same inclination angle.

4. The film antenna according to claim 2 , wherein inclination angles of the radiation pattern and the transmission line with respect to the pad are different from each other.

5. The film antenna according to claim 1 , wherein the antenna pattern comprises antenna patterns which are inclined in opposite directions to each other with respect to the pad.

6. The film antenna according to claim 1 , further comprising a parallel antenna pattern that extends to be parallel with respect to the pad.

7. The film antenna according to claim 1 , wherein the antenna pattern is inclined by a predetermined inclination angle with respect to a sidewall of the pad.

8. The film antenna according to claim 7 , wherein the inclination angle is 5 degree)(°) or more, and less than 90°.

9. The film antenna according to claim 1 , further comprising a ground layer under the dielectric layer.

10. The film antenna according to claim 1 , further comprising a dummy pattern formed around the antenna pattern.

11. The film antenna according to claim 10 , wherein the antenna pattern and the dummy pattern comprise a mesh structure.

12. A display device comprising the film antenna according to claim 1 .

Assignees

• Dongwoo Fine Chem Co Ltd
• Kreemo Inc

Inventors

• Kim Jong Min
• Ryu Han Sub
• Huh Yoon Ho
• Hong Won Bin

Classifications

• H01Q1/48

  Earthing means; Earth screens; Counterpoises · CPC title

• H01Q1/44

  using equipment having another main function to serve additionally as an antenna {, e.g. means for giving an antenna an aesthetic aspect}(H01Q1/27 - H01Q1/34 take precedence) · CPC title

• H01Q1/38 Primary

  formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface  H01Q15/142)} · CPC title

• H01Q1/243 Primary

  with built-in antennas · CPC title

• H01Q1/2291

  used in Bluetooth® or Wi-Fi® devices of Wireless Local Area Networks [WLAN] (H01Q1/241 takes precedence; WLAN in general H04W) · CPC title