Antenna device and display device including the same

Patent metadata

Field	Value
Publication number	US-11973265-B2
Application number	US-202117492807-A
Country	US
Kind code	B2
Filing date	Oct 4, 2021
Priority date	Apr 2, 2019
Publication date	Apr 30, 2024
Grant date	Apr 30, 2024

Abstract

An antenna device according to an embodiment of the present disclosure includes a dielectric layer, a first electrode layer disposed on an upper surface of the dielectric layer, the first electrode layer including a radiator and having a first mesh structure, and a second electrode layer disposed on a lower surface of the dielectric layer, the second electrode layer having a second mesh structure. The first mesh structure and the second mesh structure are aligned to be offset or staggered from each other with respect to the dielectric layer in a planar view.

First claim

What is claimed is:

1. An antenna device, comprising:
a dielectric layer;
a first electrode layer disposed on an upper surface of the dielectric layer, the first electrode layer including a radiator and having a first mesh structure; and
a second electrode layer disposed on a lower surface of the dielectric layer, the second electrode layer having a second mesh structure,
wherein the first mesh structure includes first electrode lines which cross each other to define first unit cells, and the second mesh structure includes second electrode lines which cross each other to define second unit cells,
wherein the first mesh structure and the second mesh structure are aligned to be offset or staggered from each other with respect to the dielectric layer in a planar view.

2. The antenna device according to claim 1 , wherein the first unit cells and the second unit cells are projected in the planar view to be offset or staggered from each other such that sub-cells each of which is smaller than each of the first and second unit cells are formed.

3. The antenna device according to claim 2 , wherein the first unit cells and the second unit cells are each uniformly divided into a plurality of the sub-cells.

4. The antenna device according to claim 2 , wherein each of the first unit cells, the second unit cells and the sub-cells has a rhombus shape.

5. The antenna device according to claim 4 , wherein the first unit cells and the second unit cells are each divided into 4 sub-cells.

6. The antenna device according to claim 1 , wherein the second electrode layer serves as a ground electrode of the radiator.

7. The antenna device according to claim 6 , wherein the first electrode layer further includes a dummy electrode around the radiator, and the dummy electrode is separated from the radiator.

8. The antenna device according to claim 7 , wherein the dummy electrode includes the first mesh structure.

9. The antenna device according to claim 8 , wherein the radiator and the dummy electrode are entirely superimposed over the second electrode layer in a thickness direction.

10. The antenna device according to claim 1 , wherein the second electrode layer includes a lower radiator and a lower dummy electrode formed from the second mesh structure.

11. The antenna device according to claim 1 , further comprising:
a transmission line electrically connected to the radiator on the upper surface of the dielectric layer; and
a signal pad connected to an end of the transmission line.

12. The antenna device according to claim 11 , wherein the signal pad has a solid structure.

13. The antenna device according to claim 11 , further comprising a ground pad on the upper surface of the dielectric layer, wherein the ground pad is disposed around the signal pad to be separated from the signal pad.

14. The antenna device according to claim 1 , wherein the first electrode layer and the second electrode layer include silver (Ag), gold (Au), copper (Cu), aluminum (Al), platinum (Pt), palladium (Pd), chromium (Cr), titanium (Ti), tungsten (W), niobium (Nb), tantalum (Ta), vanadium (V), iron (Fe), manganese (Mn), cobalt (Co), nickel (Ni), tin (Sn), zinc (Zn), molybdenum (Mo), calcium (Ca) or an alloy thereof.

15. A display device comprising the antenna device according to claim 1 .

Assignees

• Dongwoo Fine Chem Co Ltd

Inventors

• Ryu Han Sub
• Park Dong Pil
• Oh Yun Seok

Classifications

• H01Q1/36 Primary

  Structural form of radiating elements, e.g. cone, spiral, umbrella; {Particular materials used therewith}(H01Q1/08, H01Q1/14 take precedence) · CPC title

• H01Q1/48

  Earthing means; Earth screens; Counterpoises · CPC title

• H01Q1/243 Primary

  with built-in antennas · 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

• H01Q1/50

  Structural association of antennas with earthing switches, lead-in devices or lightning protectors · CPC title