Display Device Holding Frame Convex Protrusion Adhesive Creep

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing display devices with integrated touch panels or protective members suffer from display unevenness and potential breakage due to external forces, as adhesive members creep over time, leading to reduced holding force and increased risk of rattling or displacement.

Innovation Solution

A display device configuration featuring a holding frame with a planar portion and convex protrusions that face the transparent member, using a bonding member to securely attach the transparent member to the frame, distributing compression evenly to prevent excessive stress on the adhesive and maintain structural integrity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a transparent member is bonded to the display panel by glass bonding using a transparent resin, then visibility deterioration is suppressed and protection from external impacts is achieved, but adhesive creep causes display unevenness and structural instability over time

Engineering Contradiction:

Improvebonding stabilityVSAvoiddisplay uniformity

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

A cushioning member is disposed between the transparent member and the display panel to prevent direct transmission of external impacts. This cushioning member absorbs and distributes mechanical stress before it reaches the adhesive bonding layer, preventing adhesive creep and maintaining display uniformity while preserving bonding stability.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The cushioning member acts as an intermediary element between the transparent member and the display panel. It mediates the mechanical interaction by absorbing external forces and preventing direct stress transmission to the adhesive layer, thereby eliminating the contradiction between maintaining bonding strength and preventing adhesive deformation.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If the transparent member is made larger than the display surface to widen the waterproof area, then waterproof and dustproof effect is improved, but the risk of breakage and display unevenness due to external forces increases

Engineering Contradiction:

Improvewaterproof and dustproof performanceVSAvoidresistance to external forces

Core Design Contradiction:

Object-affected harmful factorsVSStrength

Solution Approach 1:

The cushioning member is positioned to extend beyond the display panel area, providing protective cushioning for the enlarged transparent member. This allows the transparent member to be made larger for improved waterproofing while the cushioning member absorbs external forces before they can cause breakage or display unevenness.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The cushioning member functions as a flexible protective layer that can deform to absorb external impacts. This flexible shell protects the enlarged transparent member from breakage while maintaining the waterproof and dustproof benefits of the extended area.

Inventive Principle:

Principle #30Flexible shells and thin films

3Device complexity

If no cushioning member is used between the transparent protective plate and the display unit, then device complexity is reduced, but display unevenness occurs due to bending of the frame and fixing member

Engineering Contradiction:

Improvenumber of componentsVSAvoiddisplay uniformity

Core Design Contradiction:

Device complexityVSManufacturing precision

Solution Approach 1:

The cushioning member is disposed between the transparent member and the display panel to prevent direct transmission of external impacts. This cushioning member absorbs and distributes mechanical stress before it reaches the adhesive bonding layer, preventing adhesive creep and maintaining display uniformity while preserving bonding stability.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

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

This configuration stabilizes the display device, preventing display unevenness and breakage by managing adhesive compression, maintaining waterproof seals, and reducing the risk of rattling or displacement due to external forces.

Implementation Method 1

a bonding member which is disposed on the planar portion and bonds the transparent member and the holding frame

Methodology Applied

Scientific EffectAdhesion: Adhesive

Implementation Method 2

the planar portion provided with a convex protrusion protruding toward the transparent member

Methodology Applied

Scientific EffectCompression: Compression

Implementation Method 3

distributing compression evenly to prevent excessive stress on the adhesive and maintain structural integrity

Methodology Applied

Scientific EffectStress distribution:

Data Source

PatentUS9891766B2Display device

Publication Date: 2018.02.13 TRIVALE TECHNOLOGIES LLC

AI summary

A display device includes: a light source unit; a holding frame that stores the light source unit therein; a display panel that is disposed to face the light source unit; and a transparent member that is disposed on a front surface side of the display panel, wherein the holding frame includes a planar portion which is formed to face a periphery portion of a rear surface side of the transparent member, and wherein the holding frame includes a bonding member which is disposed on the planar portion and bonds the transparent member and the holding frame, and wherein the planar portion provided with a convex protrusion protruding toward the transparent member.