Antenna-Inserted Electrode Structure With ESD Line Protection

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Solution Overview

Problem

Existing image display devices face issues with damage and short circuits in antenna electrodes due to external voltages or currents, particularly in high-frequency communication, and electrostatic discharge tests, which can be exacerbated by the miniaturization of antenna electrodes.

Innovation Solution

An antenna-inserted electrode structure is designed with an electrostatic discharge line adjacent to the antenna unit, incorporating an electrostatic discharge bridge and guard line to efficiently discharge static electricity and block interference, enhancing electrical and mechanical reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the antenna electrode size is decreased for high-frequency communication, then communication capability is improved, but the antenna electrode becomes more susceptible to damage from electrostatic discharge

Engineering Contradiction:

Improvecommunication capabilityVSAvoidantenna electrode durability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

An electrostatic discharge line is introduced as an intermediary element between the antenna electrode and the external environment. This discharge line provides a dedicated pathway for electrostatic discharge currents to flow, protecting the miniaturized antenna electrode from damage while maintaining its small size for high-frequency communication

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The harmful electrostatic discharge current is extracted from the antenna electrode path and redirected through a separate electrostatic discharge line. This separation allows the antenna electrode to remain small and functional while the discharge line handles the protective function of dissipating static electricity

Inventive Principle:

Principle #2Taking out (Extraction)

2Adaptability or versatility

If sensing electrodes and circuits are distributed across the display panel, then touch sensing functionality is improved, but the risk of damage from external voltage or current increases

Engineering Contradiction:

Improvetouch sensing functionalityVSAvoidsusceptibility to external voltage damage

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The electrostatic discharge line acts as a mediator that intercepts and channels external voltage or current away from the sensing electrodes and circuits. This protective pathway allows the sensing elements to be distributed across the display panel for full touch functionality while reducing their exposure to harmful electrical factors

Inventive Principle:

Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The structure effectively prevents damage and short circuits in antenna units by efficiently discharging electrostatic discharge currents and blocking radiation and electric field interference, thereby improving the reliability of touch sensors and communication functionality.

Implementation Method 1

an electrostatic discharge line extending from a periphery of the antenna unit on the substrate layer

Methodology Applied

Scientific EffectElectrostatic discharge: Electrostatic Discharge

Implementation Method 2

incorporating an electrostatic discharge bridge and guard line to efficiently discharge static electricity and block interference

Methodology Applied

Scientific EffectElectric field blocking: Electric Field

Data Source

PatentUS12424737B2Antenna-inserted electrode structure and image display device including the same

Publication Date: 2025.09.23 DONGWOO FINE CHEM CO LTD

AI summary

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.