Antenna structure and image display device including the same

Patent metadata

Field	Value
Publication number	US-12062846-B2
Application number	US-202217724664-A
Country	US
Kind code	B2
Filing date	Apr 20, 2022
Priority date	Oct 29, 2019
Publication date	Aug 13, 2024
Grant date	Aug 13, 2024

Abstract

An antenna structure according to an embodiment of the present invention includes a substrate layer including a touch sensing region and a touch sensing-antenna region, sensing electrodes disposed on the substrate layer, the sensing electrodes being distributed throughout the touch sensing region and the touch sensing-antenna region, and an antenna unit disposed on the touch sensing-antenna region of the substrate layer, the antenna unit including a radiator that is interposed between the sensing electrodes or disposed in a sensing electrode of the sensing electrodes in a planar view.

First claim

What is claimed is:

1. An antenna structure, comprising:
a substrate layer including a touch sensing region and a touch sensing-antenna region;
sensing electrodes disposed on the substrate layer, the sensing electrodes being distributed throughout the touch sensing region and the touch sensing-antenna region; and
an antenna unit disposed on the touch sensing-antenna region of the substrate layer, the antenna unit including a radiator that is interposed between the sensing electrodes or disposed in a sensing electrode of the sensing electrodes in a planar view.

2. The antenna structure according to claim 1 , wherein the radiator has an area smaller than that of the sensing electrode.

3. The antenna structure according to claim 2 , wherein the sensing electrode including the radiator therein has a different shape from that of the sensing electrodes in the touch sensing region.

4. The antenna structure according to claim 2 , wherein the sensing electrode around the radiator has a smaller area than that of the sensing electrodes in the touch sensing region.

5. The antenna structure according to claim 1 , further comprising a dummy pattern interposed between the radiator and the sensing electrode.

6. The antenna structure according to claim 5 , wherein each of the sensing electrodes, the radiator and the dummy pattern includes a mesh structure.

7. The antenna structure according to claim 1 , wherein the antenna unit further comprises a transmission line branching and extending from the radiator and a signal pad electrically connected to a terminal end of the transmission line.

8. The antenna structure according to claim 7 , wherein the transmission line is disposed in the sensing electrode together with the radiator.

9. The antenna structure according to claim 7 , wherein the transmission line is interposed between a pair of sensing electrodes neighboring each other of the sensing electrodes together with the radiator.

10. The antenna structure according to claim 1 , wherein the sensing electrodes comprises:
first sensing electrodes arranged along a first direction that is parallel to a top surface of the substrate layer; and
second sensing electrodes arranged along a second direction that is parallel to the top surface of the substrate layer and crosses the first direction.

11. The antenna structure according to claim 10 , further comprising bridge electrodes electrically connecting neighboring first sensing electrodes of the first sensing electrodes.

12. The antenna structure according to claim 11 , wherein the bridge electrode extends over a central line of the radiator.

13. The antenna structure according to claim 11 , wherein the bridge electrode do not overlap the radiator, and a current flow through the first sensing electrodes and the bridge electrode bypasses the radiator.

14. The antenna structure according to claim 1 , wherein the touch sensing region includes a central portion of the substrate layer, and the touch sensing-antenna region is located at one end portion of the substrate layer.

15. The antenna structure according to claim 14 , further comprising:
an antenna driving integrated circuit chip electrically connected to the antenna unit on the touch sensing-antenna region; and
a touch sensor driving integrated circuit chip electrically connected to the sensing electrodes on the other end portion of the substrate layer.

16. An image display device comprising the antenna structure according to claim 1 .

Assignees

• Dongwoo Fine Chem Co Ltd

Inventors

• Kim Jong Min
• Maeng Chang Jun
• Huh Yoon Ho

Classifications

• H04M2201/38

  Displays · CPC title

• H04M1/0266

  for a display module assembly · CPC title

• H01Q1/243

  with built-in antennas · 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

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title