Display Panel Adhesion Member Thermal Separation

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Solution Overview

Problem

Existing display devices face challenges in efficiently separating the display panel from the mold member due to strong adhesion, which complicates maintenance and replacement processes.

Innovation Solution

Incorporation of a heating wire that softens the adhesion member between the display panel and the mold member, allowing for easy separation by applying current to heat and soften the adhesion member, thereby reducing its adhesion strength.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If an adhesion member is used to fix the display panel to the mold member, then the display panel is securely fixed, but it becomes difficult to separate the display panel from the mold member for maintenance and replacement

Engineering Contradiction:

Improveadhesion strengthVSAvoidseparation ease

Core Design Contradiction:

StrengthVSEase of repair

Solution Approach 1:

The adhesion member's physical state is changed by temperature control. During assembly, the adhesion member is in a solid state providing strong bonding. During maintenance, heating the adhesion member to its melting point transitions it to a liquid state, reducing adhesion strength and enabling easy separation. This parameter change (temperature-induced phase transition) resolves the contradiction between strong fixation and easy separation.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The adhesion member transitions from a static strong-bonding state during operation to a dynamic separable state during maintenance through controlled heating. The heating wire integrated with the mold member enables on-demand transformation of the adhesion state, making the system adaptable to different operational phases (assembly vs. maintenance) and resolving the fixed contradiction between strong adhesion and easy separation.

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If physical force is applied to separate the display panel from the mold member, then separation can be achieved, but the display panel may be damaged

Engineering Contradiction:

Improveseparation operationVSAvoiddisplay panel integrity

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The mechanical separation process (applying physical force) is replaced with a thermal process. The heating wire heats the adhesion member to its melting point, causing it to transition from solid to liquid state. This eliminates the need for mechanical force that could damage the display panel, substituting a gentle thermal field for a potentially harmful mechanical action while achieving the same separation goal.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The adhesion member acts as an intermediary between the display panel and mold member. By controlling its phase state through heating, it mediates the separation process. When heated to melting point, the adhesion member becomes liquid and loses its bonding function, allowing the display panel to separate naturally without direct mechanical contact or force, thus protecting panel integrity.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Ease of repair

If the adhesion member is heated to soften it for separation, then easy separation is achieved, but additional heating components are required

Engineering Contradiction:

Improveseparation easeVSAvoidheating system complexity

Core Design Contradiction:

Ease of repairVSDevice complexity

Solution Approach 1:

The heating wire is integrated directly into the mold member structure, merging the heating function with the existing mold component. This eliminates the need for separate external heating devices or complex heating systems. The mold member itself becomes the heating element carrier, reducing overall device complexity while enabling the thermal softening function for easy separation.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The mold member incorporates the heating wire to perform self-heating, eliminating the need for external heating sources. The system uses its own structural component (mold member) to generate the necessary heat for softening the adhesion member, thereby simplifying the overall system architecture and reducing the number of additional components required.

Inventive Principle:

Principle #25Self-service

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

Facilitates easy separation of the display panel and mold member without physical force, simplifying maintenance and manufacturing processes while ensuring strong adhesion when cooled.

Implementation Method 1

a heating wire contacting the adhesion member

Methodology Applied

Scientific EffectJoule heating: Joule Heating

Data Source

PatentUS10159168B2Display device and method for manufacturing the same

Publication Date: 2018.12.18 SAMSUNG DISPLAY CO LTD

AI summary

A display device includes a display panel including a top surface and a bottom surface facing the top surface in a normal direction, a mold member including a seat surface and an outer surface, the bottom surface of the display panel being positioned on the seat surface of the mold member, an adhesion member between the bottom surface and the seat surface to fix the bottom surface to the seat surface, a heating wire contacting the adhesion member, and an accommodation member coupled to the mold member.