Plastic Frame Recesses for Display Shock Absorption

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Solution Overview

Problem

Conventional plastic frames in display devices lack buffer capability, leading to damage or breakage of the display panel during shock tests due to excessive impact forces.

Innovation Solution

A plastic frame design featuring a main body with two recesses on opposite sides of a protruding portion, allowing the protruding portion to deform and absorb impact forces, thereby reducing the force applied to the display panel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional plastic frame without recesses is used, then the structure is simple and easy to manufacture, but the frame lacks buffer capability and cannot withstand impact forces, causing the display panel to break during shock tests

Engineering Contradiction:

Improveshock resistanceVSAvoidframe structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies beforehand cushioning by designing recesses in the plastic frame that create buffer zones before impact forces reach the display panel. These recesses are positioned in advance to absorb and dissipate shock energy, preventing direct transmission to the panel during shock tests.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The patent applies dynamics by making the plastic frame structure capable of deformation under impact. The recesses allow the frame to dynamically adjust and absorb impact forces through controlled deformation, rather than remaining rigid and transmitting full force to the display panel.

Inventive Principle:

Principle #15Dynamics

2Reliability

If the plastic frame structure is modified to include recesses for buffer capability, then the shock resistance improves, but the manufacturing complexity and structural design become more difficult

Engineering Contradiction:

Improveimpact force reductionVSAvoidframe fabrication

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent applies parameter changes by modifying the geometric parameters of the plastic frame to include recesses with specific dimensions and positions. These parameter changes create the buffer capability while maintaining compatibility with existing manufacturing processes for plastic frames.

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

The design effectively reduces the impact force transmitted to the display panel, enhancing the device's shock resistance and preventing damage during external impacts.

Implementation Method 1

the protruding portion will deform along a direction opposite to the display panel, so as to effectively reduce the impact force applied from the display panel to the plastic frame

Methodology Applied

Scientific EffectDeformation: Deformation

Data Source

PatentUS8011822B1Plastic frame, backlight module, display device and method for assembling the same

Publication Date: 2011.09.06 AU OPTRONICS CORP

AI summary

A plastic frame includes a main body and a protruding portion protruding from the main body. The main body has a first horizontal surface, a second horizontal surface, a first recess and a second recess, wherein the first horizontal surface is opposite to the second horizontal surface. The protruding portion has a first vertical surface and a second vertical surface, wherein the first vertical surface is opposite to the second vertical surface. The first recess connects the first vertical surface and the first horizontal surface and the second recess connects the second vertical surface and the second horizontal surface.