Conductive Frame ESD Path for Display Module Protection

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Solution Overview

Problem

Electrostatic discharge (ESD) phenomena in electronic devices can damage components due to accumulated electric charges, which are not effectively managed by existing designs, leading to performance deterioration or malfunction.

Innovation Solution

An electronic device design incorporating a conductive frame surrounding the display module, a side member with partition walls, and conductive connecting members that facilitate the flow of electric charges to ground, preventing damage from ESD by providing a path for accumulated charges to dissipate safely.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a gap is provided between the frame and display module for design purposes, then ease of manufacture is improved, but electrostatic discharge damage to electronic components increases

Engineering Contradiction:
Improveease of manufactureVSAvoidESD damage
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

A conductive member is introduced as an intermediary element between the frame and display module. This conductive member serves dual purposes: it maintains the design gap for manufacturing ease while providing a controlled path for electrostatic discharge, preventing direct ESD damage to electronic components through the gap.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The frame structure is segmented into multiple portions with partition walls that create controlled pathways. By dividing the frame into segments rather than using a continuous structure, the design maintains manufacturing flexibility while creating specific channels for ESD management through the gaps between segments.

Inventive Principle:
Principle #1Segmentation

2Reliability

If electric charges are allowed to accumulate on the surface for design purposes, then device functionality is maintained, but ESD phenomenon damage to components increases

Engineering Contradiction:
Improvedevice functionalityVSAvoidESD phenomenon damage
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent converts the harmful ESD phenomenon into a beneficial protective mechanism. Accumulated electric charges that would normally cause damage are redirected through the conductive member and partition wall openings to discharge safely to ground, transforming the potential harm into a protective ESD management system.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The harmful ESD energy is extracted from the system by providing a dedicated discharge path. The conductive member and partition wall structure create a separate channel that extracts accumulated charges from the display module area and directs them to ground, removing the harmful effect while preserving device functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

3Object-affected harmful factors

If partition walls are added to create ESD paths, then protection from ESD damage is improved, but device complexity increases

Engineering Contradiction:
Improveprotection from ESD damageVSAvoiddevice complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The partition walls serve multiple functions simultaneously: they provide structural support for the frame, create controlled openings for ESD discharge paths, and maintain the gap design for manufacturing purposes. This multi-functionality reduces the need for separate dedicated ESD protection components, thereby limiting the increase in device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The ESD protection function is merged with the existing frame structure. Rather than adding separate ESD protection components, the partition walls are integrated into the frame itself, combining structural and ESD management functions into a single element to minimize complexity increase.

Inventive Principle:
Principle #5Merging (Combining)

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 solution effectively alleviates the risk of ESD damage by ensuring electric charges are directed to ground, thereby protecting internal components and maintaining device functionality.

Implementation Method 1

An electrostatic discharge (ESD) phenomenon may occur between an electronic component and electrical objects made of a conductive material. The ESD phenomenon may refer to an electrical phenomenon generated by instantaneous movement of electric charges accumulated in one portion by various factors to another portion.

Methodology Applied
Scientific EffectElectrostatic discharge: Electrostatic Discharge

Implementation Method 2

a frame disposed to surround at least a portion of the display module and formed of a conductive material... a first conductive connecting member extending from the second partition wall portion to the first partition wall portion

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS12181936B2Electronic device including electrostatic discharge path
Publication Date: 2024.12.31 SAMSUNG ELECTRONICS CO LTD
  • US12181936B2 patent drawing
  • US12181936B2 patent drawing
  • US12181936B2 patent drawing

AI summary

An electronic device may include a display module, a connecting member including a bending portion connected to a display panel of the display module and extending toward a rear surface of the display module, and a protective layer formed of an insulating material to cover the bending portion, a printed circuit board disposed on a rear surface of the display module and connected to the display module by the connecting member, a frame disposed to surround at least a portion of the display module and formed of a conductive material, a side member including a first partition wall portion disposed between the frame and the display module to be spaced apart from the frame and a second partition wall portion disposed to be spaced apart from the display module and coveting at least a portion of an outer periphery of the display module.