Interactive Display Impact Resistance via Adapter Plate

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Solution Overview

Problem

Interactive touch screens, particularly those with liquid crystal display panels, are vulnerable to damage from impacts and stress, which can cause display defects like light leakage and color bands due to the sensitivity of newer technologies such as OLEDs to applied or residual stress.

Innovation Solution

An adjustable adapter plate is used to create a mounting surface on the display chassis level with the liquid crystal display panel, combined with an optically clear protective plate and compliant adhesives or structures to absorb and dissipate impact energy, reducing stress on the panel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the interactive cover glass is extended to the edge with seamless interactive area, then the interaction capability is improved, but the vulnerability to contamination and damage increases

Engineering Contradiction:
Improveinteraction capabilityVSAvoidcontamination and damage risk
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent divides the protective function into multiple layers: a first protective plate attached to the display panel and a second protective plate attached to the chassis, with the interactive cover glass in between. This segmentation allows each layer to handle specific protective functions while maintaining the seamless interactive area.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements protective plates and compliant adhesive structures before impact or contamination occurs. The compliant adhesive layer acts as a cushion that absorbs impact energy, and the protective plates prevent contamination from entering seams, addressing the harmful factors before they can damage the display.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

2Illumination intensity

If newer display technologies like OLED are used to improve display quality, then the visual performance is improved, but the sensitivity to stress and impact damage increases

Engineering Contradiction:
Improvedisplay qualityVSAvoidresistance to stress and impact
Core Design Contradiction:
Illumination intensityVSReliability

Solution Approach 1:

The patent uses a compliant adhesive layer between the protective plates and the display panel. This flexible film structure absorbs impact energy and reduces stress transmission to the sensitive OLED panel, protecting it from damage while maintaining display quality.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The patent creates a composite protective structure combining rigid protective plates with a compliant adhesive layer. This composite material approach provides both structural support and stress absorption, protecting the sensitive display technology from impact damage.

Inventive Principle:
Principle #40Composite materials

3Shape

If the protective bezel is minimized to achieve flush mounting, then the aesthetic appearance is improved, but the protection against side impacts is reduced

Engineering Contradiction:
Improveaesthetic appearanceVSAvoidprotection against side impacts
Core Design Contradiction:
ShapeVSStrength

Solution Approach 1:

The patent moves the protective function from the horizontal dimension (bezel) to the vertical dimension by attaching protective plates to both the display panel and chassis. This dimensional shift allows for minimal bezel while maintaining protection through the layered structure.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent introduces adjustable adapter plates as intermediaries between the chassis and the protective structure. These adapter plates create a mounting surface that is level with the display panel, enabling flush mounting while the protective plates provide the necessary impact protection.

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 enhances the impact resistance of the display system, preventing damage from drops and side impacts and minimizing display defects by isolating the liquid crystal display panel from external stresses.

Implementation Method 1

an optically clear protective plate to the mounting surface

Methodology Applied
Scientific EffectImpact energy absorption: Damping

Data Source

PatentEP2774137B1Impact resistant construction of an interactive device
Publication Date: 2018.01.31 MICROSOFT TECHNOLOGY LICENSING LLC
  • EP2774137B1 patent drawingFigure 1
  • EP2774137B1 patent drawingFigure 2
  • EP2774137B1 patent drawingFigure 3

AI summary

In one embodiment, a high impact resistance display module 300 may avoid damage better than a standard display module 200. An interactive touch screen may create a mounting surface on a display chassis 312 that is level with a liquid crystal display panel 302 using an adjustable adapter plate 330. An interactive touch screen may attach an optically clear protective plate 334 to the liquid crystal display panel 302. An interactive touch screen may attach an optically clear protective plate 334 to the mounting surface.