Antenna-inserted electrode structure and image display device including the same

Patent metadata

Field	Value
Publication number	US-11955689-B2
Application number	US-202217886557-A
Country	US
Kind code	B2
Filing date	Aug 12, 2022
Priority date	Feb 14, 2020
Publication date	Apr 9, 2024
Grant date	Apr 9, 2024

Abstract

An antenna-inserted electrode structure according to an embodiment includes a substrate layer comprising a touch sensing area and a touch sensing-antenna area, sensing electrodes disposed on the touch sensing area and the touch sensing-antenna area of the substrate layer, and an antenna unit disposed on the touch sensing-antenna area of the substrate layer, the antenna unit including a radiator. The sensing electrodes and the radiator include a hybrid mesh structure, and the hybrid mesh structure includes a first mesh structure and a second mesh structure integrally combined with each other. The first mesh structure and the second mesh structure have different shapes and arrangements from each other.

First claim

What is claimed is:

1. An antenna-inserted electrode structure, comprising:
a substrate layer comprising a touch sensing area and a touch sensing-antenna area;
sensing electrodes disposed on the touch sensing area and the touch sensing-antenna area of the substrate layer; and
an antenna unit disposed on the touch sensing-antenna area of the substrate layer, the antenna unit comprising a radiator,
wherein the sensing electrodes and the radiator include a hybrid mesh structure, and the hybrid mesh structure comprises a first mesh structure and a second mesh structure integrally combined with each other, the first mesh structure and the second mesh structure having different shapes and arrangements from each other.

2. The antenna-inserted electrode structure according to claim 1 , wherein the first mesh structure comprises first electrode lines and second electrode lines intersecting each other.

3. The antenna-inserted electrode structure according to claim 2 , wherein the second mesh structure comprises third electrode lines and fourth electrode lines intersecting each other,
wherein the third electrode lines and the fourth electrode lines extend in different directions from those of the first electrode lines and the second electrode lines to intersect the first electrode lines and the second electrode lines.

4. The antenna-inserted electrode structure according to claim 3 , wherein the third electrode lines and the fourth electrode lines extend from a boundary of the radiator.

5. The antenna-inserted electrode structure according to claim 4 , wherein unit cells are defined by the third electrode lines and the fourth electrode lines intersecting each other, and the boundary of the radiator is defined by one of the unit cells.

6. The antenna-inserted electrode structure according to claim 5 , wherein the boundary of the radiator has a linear shape extending along an extension direction of the third electrode lines and the fourth electrode lines.

7. The antenna-inserted electrode structure according to claim 3 , wherein the radiator comprises a first radiator and a second radiator having different sizes, and the hybrid mesh structure further comprises a third mesh structure.

8. The antenna-inserted electrode structure according to claim 7 , wherein the third mesh structure comprises fifth electrode lines and sixth electrode lines intersecting each other, and
the fifth electrode lines and the sixth electrode lines extend in different directions from those of the third electrode lines and the fourth electrode lines.

9. The antenna-inserted electrode structure according to claim 1 , wherein the antenna unit further comprises a transmission line formed from the hybrid mesh structure and integrally connected to the radiator, and a signal pad connected to an end portion of the transmission line.

10. The antenna-inserted electrode structure according to claim 9 , wherein the signal pad has a solid structure.

11. The antenna-inserted electrode structure according to claim 1 , wherein the sensing electrodes include first sensing electrodes arranged along a column direction and second sensing electrodes arranged along a row direction.

12. The antenna-inserted electrode structure according to claim 11 , further comprising connecting portions formed from the hybrid mesh structure and integrally connecting the first sensing electrodes along the column direction; and
bridge electrodes electrically connecting the second sensing electrodes to each other along the row direction.

13. The antenna-inserted electrode structure according to claim 1 , wherein sensing electrodes arranged in the touch sensing area have a shape different from that of sensing electrodes adjacent to the radiator in the touch sensing-antenna area.

14. The antenna-inserted electrode structure according to claim 13 , wherein the sensing electrodes adjacent to the radiator have a shape in which the shape of the sensing electrodes arranged in the touch sensing area is cut or partially removed by a boundary of the radiator.

15. An image display device comprising the antenna-inserted electrode structure according to claim 1 .

Assignees

• Dongwoo Fine Chem Co Ltd

Inventors

• Kim Byoung In
• Maeng Chang Jun
• Huh Yoon Ho

Classifications

• G06F2203/04112

  Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material · CPC title

• G06F2203/04111

  Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate · CPC title

• H01Q5/307

  Individual or coupled radiating elements, each element being fed in an unspecified way · CPC title

• H01Q1/24

  with receiving set · CPC title

• H01Q1/22 Primary

  by structural association with other equipment or articles · CPC title