Elastic Pad Panel Positioning in Display Frame Assembly

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Solution Overview

Problem

Conventional display panel devices suffer from assembly issues due to insufficient friction between the outer frame and the LCD panel, leading to potential damage from sliding and collision.

Innovation Solution

Incorporating an elastic pad with a higher elastic modulus than the frame, sandwiched between the display panel and the frame, which deforms to form a bottom and side portion, generating a frictional force that securely positions the display panel, preventing movement relative to the frame.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a gap is left between the outer frame and the LCD panel to accommodate production tolerance, then assembly is easier and production tolerance is accommodated, but friction between the frame and panel becomes insufficient, causing the panel to slide and collide with the frame

Engineering Contradiction:
Improvepanel positioning stabilityVSAvoidassembly ease
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

An elastic pad is introduced as an intermediary component between the outer frame and the LCD panel. This pad fills the gap that was previously left for production tolerance, and through its elastic deformation, generates sufficient friction force to prevent panel sliding while still accommodating assembly variations.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The elastic modulus of the pad is specifically designed to be greater than that of the outer frame, creating a controlled parameter difference that enables the pad to deform elastically under panel weight and generate the necessary friction force for stable positioning.

Inventive Principle:
Principle #35Parameter changes

2Force

If the elastic pad has a higher elastic modulus than the frame, then the pad can deform sufficiently under panel pressure to generate friction force, but the pad itself becomes more rigid and harder to compress

Engineering Contradiction:
Improvefriction force generationVSAvoidpad rigidity
Core Design Contradiction:
ForceVSStrength

Solution Approach 1:

The elastic pad is designed with non-uniform thickness, being thicker at the center and thinner at the edges. This local quality variation allows the thicker central region to provide sufficient elastic deformation for friction force generation, while the thinner edge regions maintain easier compressibility for assembly.

Inventive Principle:
Principle #3Local quality

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 method effectively positions the display panel, reducing the risk of damage by creating a strong frictional force between the panel and the frame, ensuring stable assembly and enhanced durability.

Implementation Method 1

the elastic pad is susceptible to deformation under force. When the display panel is placed on the frame, the edge of the display panel presses the middle portion of the elastic pad and compels the elastic pad to bend

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Implementation Method 2

a normal force is generated when the display panel presses the side portion, a frictional force is generated between the display panel and the side portion

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS9078386B2Method for manufacturing display device with panel positioning structure
Publication Date: 2015.07.07 SAMSUNG DISPLAY CO LTD
  • US9078386B2 patent drawing
  • US9078386B2 patent drawing
  • US9078386B2 patent drawing

AI summary

A method for manufacturing a panel display is provided. The panel display includes a frame, an elastic pad, and a display panel. The frame has a supporting tray and a side wall which perpendicularly extends from the end of the supporting tray. A groove is formed on the supporting tray adjacent to the foot of the side wall. One end of the elastic pad is located within the groove while the other end leans on the side wall before the display panel is configured with the frame. When entering the display panel into the frame, the edge of the display panel compels the elastic pad to bend and form a bottom portion and a side portion. The bottom portion is accommodated in the groove while the side portion is compressed by the edge of the display panel and lies on the side wall.