Embossed Shock-Absorbing Display Module With Thin Adhesive Cushioning

Solution Overview

Problem

Existing shock absorbing modules for display devices face challenges in reducing overall thickness while maintaining durability, often experiencing adhesion failures and layer separation due to increased stress from multiple layers.

Innovation Solution

A slim shock absorbing module is designed with a cushion layer containing an adhesive polymer resin and hollow particles, along with an embossed adhesive layer directly attached to the display panel, eliminating the need for additional adhesive layers and reducing stress on the interface, thereby enhancing durability and simplifying the fabrication process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a plurality of layers are used in the shock absorbing module, then shock absorption performance is improved, but overall thickness increases and layer separation occurs

Engineering Contradiction:

Improveshock absorption performanceVSAvoidoverall thickness

Core Design Contradiction:

ReliabilityVSLength of moving object

Solution Approach 1:

The adhesive layer and cushion layer are merged into a single integrated structure where the adhesive polymer resin forms both the bonding interface and the shock-absorbing matrix. Hollow particles are embedded within this unified layer, eliminating the need for separate adhesive and cushioning layers while maintaining both functions.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The cushion layer uses a composite material system consisting of adhesive polymer resin combined with hollow particles (such as microbeads or foam structures). This composite provides both adhesion to the display panel and shock absorption capabilities within a single thin layer, resolving the contradiction between performance and thickness.

Inventive Principle:

Principle #40Composite materials

2Reliability

If a plurality of layers are used in the shock absorbing module, then shock absorption performance is improved, but interface adhesion fails due to increased stress

Engineering Contradiction:

Improveshock absorption performanceVSAvoidinterface adhesion strength

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The adhesive layer and cushion layer are merged into a single integrated structure where the adhesive polymer resin forms both the bonding interface and the shock-absorbing matrix. Hollow particles are embedded within this unified layer, eliminating the need for separate adhesive and cushioning layers while maintaining both functions.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The adhesive polymer resin acts as an intermediary material that simultaneously provides bonding strength to the display panel and cushioning properties through embedded hollow particles. This intermediary layer distributes stress uniformly, preventing interface adhesion failure while maintaining shock absorption performance.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Strength

If additional adhesive layers are added, then bonding strength is improved, but device complexity and fabrication difficulty increase

Engineering Contradiction:

Improvebonding strengthVSAvoidnumber of layers

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The adhesive layer and cushion layer are merged into a single integrated structure where the adhesive polymer resin forms both the bonding interface and the shock-absorbing matrix. Hollow particles are embedded within this unified layer, eliminating the need for separate adhesive and cushioning layers while maintaining both functions.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The cushion layer with adhesive polymer resin and hollow particles serves multiple functions simultaneously: it provides shock absorption through the compressible hollow particles, ensures bonding to the display panel through the adhesive resin, and maintains a slim profile. This multi-functional design eliminates the need for separate adhesive layers.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 achieves improved shock absorption and interface adhesion strength, reducing the risk of layer separation and allowing for a thinner, more durable display device structure.

Implementation Method 1

a hollow particle which is in the adhesive polymer resin

Methodology Applied

Scientific EffectCompression: Compression

Implementation Method 2

shock absorbing module includes a shock absorbing layer at which the shock absorbing module is attachable to a display panel

Methodology Applied

Scientific EffectShock absorption: Damping

Implementation Method 3

the shock absorbing layer including a cushion layer including an adhesive polymer resin

Methodology Applied

Scientific EffectAdhesion: Adhesive

Data Source

PatentUS12181013B2Shock absorbing module and display device including the same

Publication Date: 2024.12.31 SAMSUNG DISPLAY CO LTD

AI summary

A shock absorbing module includes a shock absorbing layer at which the shock absorbing module is attachable to a display panel, the shock absorbing layer including a cushion layer including an adhesive polymer resin, and a hollow particle which is in the adhesive polymer resin, and an embossed adhesive layer with which the shock absorbing layer is attachable to the display panel, and a base layer. The shock absorbing module attached to the display panel disposes the shock absorbing layer between the display panel and the base layer.