Display Suspension via Segmented Casing for Tactile Feedback

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Solution Overview

Problem

Existing display and speaker suspension systems in portable electronic devices often result in poor 'feel' due to complex and inefficient mounting arrangements, which can compromise audio and tactile output quality.

Innovation Solution

A casing or cover design that suspends the display relative to a static portion of the device, utilizing flexible materials and shapes to allow the display to move, driven by motors or piezo-electric transducers, while maintaining structural integrity and providing tactile feedback.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a complex mounting arrangement is used to suspend the display, then the structural integrity is maintained, but the audio and tactile output quality deteriorates

Engineering Contradiction:
Improvestructural integrityVSAvoidaudio and tactile output quality
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The mounting arrangement is divided into separate functional zones: rigid mounting regions at the periphery for structural support, and a flexible central region for display movement. This segmentation allows the display to move freely in the center while maintaining overall structural integrity through the rigid peripheral mounting points.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the mounting arrangement have different mechanical properties - the peripheral regions are rigid to provide structural support, while the central region is flexible to allow display movement for audio/tactile output. This local differentiation of mechanical properties resolves the contradiction between structural integrity and output quality.

Inventive Principle:
Principle #3Local quality

2Stability of the object's composition

If the display is rigidly mounted, then the structural stability is improved, but the tactile feedback quality deteriorates

Engineering Contradiction:
Improvestructural stabilityVSAvoidtactile feedback quality
Core Design Contradiction:
Stability of the object's compositionVSReliability

Solution Approach 1:

The mounting structure is segmented into rigid peripheral portions that provide structural stability and a flexible central portion that enables display movement for tactile feedback. This segmentation allows simultaneous achievement of structural stability and tactile feedback quality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The mounting arrangement transitions from a completely rigid structure to a dynamic structure with controlled flexibility in the central region. This allows the display to move dynamically for tactile feedback while the peripheral rigid portions maintain overall structural stability.

Inventive Principle:
Principle #15Dynamics

3Device complexity

If a simple mounting arrangement is used, then the device complexity is reduced, but the audio output quality deteriorates

Engineering Contradiction:
Improvemounting arrangement complexityVSAvoidaudio output quality
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The mounting arrangement merges structural support and display suspension functions into a single integrated structure. The rigid peripheral regions provide structural support while the flexible central region enables display movement for audio output, eliminating the need for separate complex suspension mechanisms.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The mounting arrangement serves multiple functions simultaneously: structural support through rigid peripheral regions, display suspension, and enabling tactile feedback through flexible central region movement. This multi-functionality reduces overall device complexity while maintaining audio output quality.

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

Enhances audio and tactile output quality by allowing the display to move relative to the static components, improving user interaction and reducing the complexity of mounting arrangements, leading to a more efficient and effective user experience.

Implementation Method 1

driven by motors or piezo-electric transducers

Methodology Applied
Scientific EffectPiezoelectric effect: Piezoelectric Effect

Data Source

PatentEP2862040B1A display suspension
Publication Date: 2021.08.18 NOKIA TECHNOLOGIES OY
  • EP2862040B1 patent drawingFigure 1
  • EP2862040B1 patent drawingFigure 2
  • EP2862040B1 patent drawingFigure 3

AI summary

An apparatus comprising a body portion; and a display assembly coupled to the body portion, wherein the body portion is configured to suspend the display assembly.