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

Patent metadata

Field	Value
Publication number	US-12424737-B2
Application number	US-202318098333-A
Country	US
Kind code	B2
Filing date	Jan 18, 2023
Priority date	Jul 22, 2020
Publication date	Sep 23, 2025
Grant date	Sep 23, 2025

Abstract

An antenna-inserted electrode structure according to an embodiment includes a substrate layer, an antenna unit disposed on the substrate layer and an electrostatic discharge line extending from a periphery of the antenna unit on the substrate layer. An external static electricity and a side current may be removed by the electrostatic discharge line to prevent electrical and mechanical damages of the antenna unit.

First claim

What is claimed is:

1. An antenna-inserted electrode structure, comprising:
a substrate layer including an active region and a peripheral region at an outside the active region;
an antenna unit disposed on the substrate layer;
sensing electrodes arranged on the active region of the substrate layer;
an electrostatic discharge line extending from a periphery of the antenna unit on the substrate layer;
a guard line extending on the peripheral region of the substrate layer;
traces branching from the sensing electrodes and extending on the peripheral region;
a sensing pad row comprising sensing pads connected to end portions of the traces; and
an electrostatic discharge pad connected to an end portion of the electrostatic discharge line; and
a guard pad connected to an end portion of the guard line.

2. The antenna-inserted electrode structure of claim 1 , wherein the antenna unit comprises a plurality of antenna units spaced apart from each other on the substrate layer, and
the electrostatic discharge line comprises a plurality of electrostatic discharge lines extending from peripheries of outermost antenna units of the plurality of antenna units.

3. The antenna-inserted electrode structure of claim 2 , further comprising an electrostatic discharge pattern disposed between antenna units neighboring each other of the plurality of antenna units.

4. The antenna-inserted electrode structure of claim 3 , further comprising an electrostatic discharge bridge electrically connecting the electrostatic discharge pattern and the electrostatic discharge line.

5. The antenna-inserted electrode structure of claim 2 , further comprising an electrostatic discharge bridge electrically connecting the plurality of electrostatic discharge lines.

6. The antenna-inserted electrode structure of claim 5 , wherein the electrostatic discharge bridge extends to avoid the plurality of antenna units in a planar view.

7. The antenna-inserted electrode structure of claim 5 , wherein the electrostatic discharge bridge extends across the plurality of antenna units in a planar view.

8. The antenna-inserted electrode structure of claim 5 , further comprising:
an insulating layer covering the plurality antenna units on the substrate layer; and
electrostatic discharge contacts formed through the insulating layer to connect the plurality of electrostatic discharge lines and the electrostatic discharge bridge to each other.

9. The antenna-inserted electrode structure of claim 8 , wherein the electrostatic discharge bridge comprises a first electrostatic discharge bridge disposed on the insulating layer, and a second electrostatic discharge bridge disposed under the substrate layer,
wherein the electrostatic discharge contacts comprise a first electrostatic discharge contact penetrating the insulating layer to be connected to the first electrostatic discharge bridge, and a second electrostatic discharge contact penetrating the substrate layer to be connected to the second electrostatic discharge bridge.

10. The antenna-inserted electrode structure of claim 1 , wherein the electrostatic discharge line extends on the peripheral region along a periphery of the active region.

11. The antenna-inserted electrode structure of claim 10 , wherein the guard line is electrically separated from the electrostatic discharge line and is closer to the active region than the electrostatic discharge line.

12. The antenna-inserted electrode structure of claim 1 , wherein the guard pad is disposed between the sensing pad row and the electrostatic discharge pad.

13. An image display device comprising the antenna-inserted electrode structure of claim 1 .

Assignees

• Dongwoo Fine Chem Co Ltd

Inventors

• Choi Byung Jin
• Kim Dong Ok
• Lee Jae Hyun

Classifications

• H01Q1/243

  with built-in antennas · CPC title

• G06F3/0443

  using a single layer of sensing electrodes · CPC title

• G06F3/0446 Primary

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title

• G06F3/041

  Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · 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