Functional Panel Release Layer for Terminal Detachment

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Solution Overview

Problem

Portable data processors are prone to damage from accidental drops due to the lack of effective structural integrity between the light-emitting layer and the second electrode layer, leading to reliability issues.

Innovation Solution

A functional panel design incorporating a release layer, a first base, a terminal, a second base, and a bonding layer, where the release layer is positioned between the wiring and the bonding layer, allowing for selective detachment of the bonding layer from the first base without breaking the terminal, and featuring a fluorine-containing group with a water contact angle of more than 90° and a bonding layer thickness less than 100 μm.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a bonding layer is used to bond the light-emitting layer and the second electrode layer, then the adhesiveness is improved, but the terminal may break during detachment processes

Engineering Contradiction:

Improveadhesiveness between light-emitting layer and second electrode layerVSAvoidterminal breakage resistance

Core Design Contradiction:

StrengthVSReliability

Solution Approach 1:

The patent divides the bonding structure into multiple layers: a bonding layer for strong adhesion and a release layer with controlled adhesion strength positioned between the bonding layer and the terminal. This segmentation allows the bonding layer to provide strong adhesiveness while the release layer prevents terminal breakage during detachment by allowing controlled separation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The release layer acts as an intermediary between the bonding layer and the terminal. It has intermediate adhesion strength that is stronger than the bonding layer-terminal interface but weaker than the bonding layer-substrate interface, enabling selective detachment of the terminal from the bonding layer without causing terminal breakage.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Length of moving object

If the bonding layer is made thin to maintain a thin structure, then the panel thickness is reduced, but the structural integrity may be compromised

Engineering Contradiction:

Improvepanel thicknessVSAvoidbonding layer strength

Core Design Contradiction:

Length of moving objectVSStrength

Solution Approach 1:

The patent uses a composite structure consisting of the bonding layer and the release layer. The bonding layer provides structural integrity and strong adhesion, while the release layer provides controlled detachment capability. This composite approach allows the bonding layer to be thin while maintaining overall structural integrity through the multi-layer design.

Inventive Principle:

Principle #40Composite materials

Data Source

PatentUS10241630B2Functional panel, functional module, light-emitting module, display module, location data input module, light-emitting device, lighting device, display device, data processing device, and manufacturing method of functional panel

Publication Date: 2019.03.26 SEMICON ENERGY LAB CO LTD

AI summary

Provided is a novel functional panel that is highly convenient or reliable, a manufacturing method of the novel functional panel that is highly convenient or reliable, a novel light-emitting device that is highly convenient or reliable, or a novel data processing device that is highly convenient or reliable. One embodiment of the present invention includes a release layer, a first base including a region overlapping with the release layer, a terminal between the release layer and the first base, a second base including a region overlapping with the first base, a bonding layer between the first base and the second base. The terminal includes a region not overlapping with the bonding layer.