Flexible Guide Member Shock Absorption for Display Devices

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Solution Overview

Problem

Existing electronic apparatuses, such as portable computers, face challenges in effectively absorbing and distributing shock to protect liquid crystal display devices from external forces and deformation, leading to potential damage.

Innovation Solution

The use of a combination of shock-absorbing and cushioning elastic members, including first and second shock-absorbing members and cushioning members, strategically positioned around the display device within the display unit, which absorb and distribute shock forces to prevent damage, utilizing materials like urethane rubber and sponge to ensure the display device remains secure and undamaged.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a rigid structure is used to secure the display device, then the display device is firmly fixed, but shock forces are not effectively absorbed, leading to potential damage

Engineering Contradiction:

Improvefixing stabilityVSAvoidshock damage

Core Design Contradiction:

Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The patent employs flexible cushioning members made of elastic materials that conform to the display device shape, providing both secure fixation and shock absorption. These flexible members replace rigid fixing structures, allowing the system to maintain stability while dissipating impact forces through material deformation.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The patent uses composite cushioning structures combining different elastic materials with varying hardness levels. Softer materials provide initial shock absorption while harder materials maintain structural support, creating a multi-layered protection system that addresses both fixation stability and shock resistance simultaneously.

Inventive Principle:

Principle #40Composite materials

2Object-affected harmful factors

If soft cushioning material is used alone, then shock is absorbed, but the display device cannot be securely fixed in position

Engineering Contradiction:

Improveshock absorptionVSAvoidposition stability

Core Design Contradiction:

Object-affected harmful factorsVSStability of the object's composition

Solution Approach 1:

The patent applies cushioning members with different local properties - softer regions for shock absorption and harder regions for positional constraint. The cushioning structure includes varying density and hardness zones that perform different functions within the same component, achieving both protection and fixation.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The cushioning system is divided into multiple segmented members arranged around the display device. Each segment provides localized shock absorption while the collective arrangement maintains positional stability. The segmented structure allows independent optimization of each cushioning element's properties.

Inventive Principle:

Principle #1Segmentation

3Object-affected harmful factors

If high-density rubber or gel is used as cushioning material, then shock absorption is improved, but the cushioning member lacks flexibility and cannot accommodate deformation

Engineering Contradiction:

Improveshock absorptionVSAvoidflexibility

Core Design Contradiction:

Object-affected harmful factorsVSAdaptability or versatility

Solution Approach 1:

The patent selects cushioning materials with specific elastic modulus values and hardness ratings that balance shock absorption capability with flexibility. By carefully controlling material parameters such as density, elasticity, and durometer, the cushioning members provide adequate protection while maintaining the flexibility needed to accommodate display device deformation during impact.

Inventive Principle:

Principle #35Parameter changes

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 solution effectively absorbs and distributes shock forces, preventing damage to the display device by allowing flexible displacement within the display unit, thereby protecting it from impacts and drops, ensuring the display remains functional and intact.

Implementation Method 1

the liquid crystal display device is surrounded by an elastic member made of high-density rubber or gel

Methodology Applied

Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS7652729B2Display device including a flexible guide member between the display device and a cushioning member

Publication Date: 2010.01.26 DYNABOOK INC

AI summary

An electronic apparatus includes a cover, a rib, an elastic member, and a mask. A non-display surface of a display device is covered with the cover. The cover has a bottom wall and an side wall. The rib is disposed between a side portion of the display device and the side wall of the cover so as to be located in a position separate from the side wall. The rib rise out of the bottom wall of the cover. The elastic members is attached to at least one of an inner surface of the bottom wall and an inner surface of the rib facing the side portion of the display device. The elastic members retain the display device. The mask is fixed to the cover while exposing a display surface of the display device.