Antenna device and display device including the same

Patent metadata

Field	Value
Publication number	US-12469963-B2
Application number	US-202217830718-A
Country	US
Kind code	B2
Filing date	Jun 2, 2022
Priority date	Dec 5, 2019
Publication date	Nov 11, 2025
Grant date	Nov 11, 2025

Abstract

An antenna device according to an embodiment of the present invention includes a dielectric layer and an antenna unit disposed on a top surface of the dielectric layer. The antenna unit includes a mesh structure. The mesh structure of the antenna unit includes unit cells that are repeatedly arranged, and diagonal lines of each unit cell are inclined with respect to a width direction or a length direction of the antenna device. The antenna device having reduced pattern visibility and having improved transmittance and signal sensitivity is provided.

First claim

What is claimed is:

1 . An antenna device, comprising:
a dielectric layer; and an antenna unit disposed on a top surface of the dielectric layer, the antenna unit including a mesh structure, wherein the mesh structure of the antenna unit includes unit cells defined by conductive lines intersecting each other, and the unit cells are repeatedly arranged, wherein the conductive lines of each unit cell and diagonal lines of each unit cell are inclined with respect to a width direction and a length direction of the antenna device.

2 . The antenna device according to claim 1 , wherein the unit cell has a rhombus shape, and an angle between a long diagonal line of the unit cell and the length direction is from 2° to 45°.

3 . The antenna device according to claim 1 , wherein the antenna unit comprises a radiator, a transmission line extending from one side of the radiator and a signal pad electrically connected to an end portion of the transmission line.

4 . The antenna device according to claim 3 , wherein a sidewall of the signal pad extends in the length direction, and the transmission line and the radiator are inclined with respect to the length direction.

5 . The antenna device according to claim 3 , wherein a sidewall of the signal pad and the transmission line extend in the length direction, and the radiator is inclined with respect to the length direction.

6 . The antenna device according to claim 3 , further comprising a pair of ground patterns facing each other with the signal pad interposed therebetween to be electrically and physically separated from the transmission line.

7 . The antenna device according to claim 6 , wherein the pair of the ground patterns are asymmetric to each other.

8 . The antenna device according to claim 7 , wherein each of the pair of the ground patterns comprises a first portion and a second portion obliquely extending from the first portion.

9 . The antenna device according to claim 8 , wherein the first portion includes a solid metal pattern, and the second portion includes a mesh structure.

10 . The antenna device according to claim 8 , wherein the second portions included in the pair of the ground patterns are asymmetric to each other with the transmission line interposed therebetween, and the first portions included in the pair of the ground patterns are symmetric to each other with the signal pad interposed therebetween.

11 . The antenna device according to claim 6 , wherein the radiator, the transmission line, the signal pad and the ground pattern are disposed at the same level on the top surface of the dielectric layer.

12 . The antenna device according to claim 3 , further comprising a dummy mesh pattern disposed around the radiator to be electrically separated from the radiator.

13 . The antenna device according to claim 12 , wherein the dummy mesh pattern includes a mesh structure having the same shape and orientation as those of the mesh structure included in the antenna unit.

14 . The antenna device according to claim 1 , further comprising a ground layer disposed on a bottom surface of the dielectric layer.

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

16 . An antenna device, comprising:
a dielectric layer; and an antenna unit disposed on a top surface of the dielectric layer, the antenna unit including a mesh structure, the antenna unit comprising: a radiator; a transmission line extending from one side of the radiator; a signal pad electrically connected to an end portion of the transmission line; and a pair of ground patterns facing each other with the signal pad interposed therebetween to be electrically and physically separated from the transmission line, wherein the pair of the ground patterns are asymmetric to each other, and the mesh structure of the antenna unit includes unit cells that are repeatedly arranged, and diagonal lines of each unit cell are inclined with respect to a width direction or a length direction of the antenna device.

Assignees

• Dongwoo Fine Chem Co Ltd

Inventors

• Choi Byung Jin
• Park Hee Jun
• Lee Jae Hyun

Classifications

• 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

• H01Q9/045

  with particular feeding means (for circular polarisation H01Q9/0428) · CPC title

• H01Q1/48

  Earthing means; Earth screens; Counterpoises · CPC title

• H01Q21/245

  provided with means for varying the polarisation  (polarising devices H01Q15/24; tracking by comparing linear polarisation compounds G01S3/146; reducing depolarisation effects H04B7/00; polarisation diversity H04B7/10) · CPC title

• 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