Honeycomb Chassis Reinforcement for LCD Deformation

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Solution Overview

Problem

Large liquid crystal display modules face deformation issues due to weight, external forces, and heat, which deteriorate image quality, and existing solutions like beading structures or increased chassis thickness are either ineffective or costly.

Innovation Solution

A liquid crystal display apparatus with a honeycomb-shaped strength reinforcing member attached to the internal surface of the bottom chassis, covered by a cover member, which enhances the structural integrity without increasing thickness or weight, using adhesives like hot melt adhesive, and incorporating a heat sink for thermal management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a beading structure is formed on the surface of the chassis to reinforce strength, then the strength of the chassis is improved, but the size and weight of the display increase

Engineering Contradiction:
Improvechassis strengthVSAvoiddisplay weight
Core Design Contradiction:
StrengthVSWeight of stationary object

Solution Approach 1:

The patent applies a honeycomb-shaped reinforcing member with a porous cellular structure to the chassis. This structure provides high strength-to-weight ratio, reinforcing the chassis while minimizing additional weight compared to solid structures. The cellular geometry distributes loads efficiently across the chassis surface.

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

Instead of adding strength through surface beading (2D surface modification), the patent introduces a 3D honeycomb structure that extends into the depth dimension. This dimensional transition creates a more effective load-bearing structure without proportionally increasing weight or external dimensions.

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

2Strength

If the thickness of the chassis is increased to prevent deformation, then the strength and resistance to deformation are improved, but the manufacturing cost and weight increase

Engineering Contradiction:
Improvedeformation resistanceVSAvoidmanufacturing cost
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The patent combines the chassis material with a honeycomb reinforcing structure to create a composite system. This composite approach provides enhanced deformation resistance without requiring uniform thickening of the entire chassis, thereby reducing material consumption and manufacturing cost compared to simply increasing chassis thickness.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The reinforcing structure is segmented into a honeycomb pattern of multiple small cells rather than a single solid block. This segmentation allows the structure to achieve high strength-to-weight ratio and deformability resistance while using less material, reducing both weight and manufacturing cost.

Inventive Principle:
Principle #1Segmentation

3Strength

If the thickness of the chassis is increased to prevent deformation, then the strength is improved, but the weight of the display increases

Engineering Contradiction:
Improvechassis strengthVSAvoiddisplay weight
Core Design Contradiction:
StrengthVSWeight of stationary object

Solution Approach 1:

The honeycomb reinforcing member utilizes a porous cellular structure that provides high strength-to-weight ratio. This allows the chassis to achieve improved deformation resistance without the weight penalty associated with solid thickening, as the porous structure maintains structural integrity while minimizing mass.

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The patent transitions from 2D surface beading to a 3D honeycomb structure, utilizing the depth dimension more effectively. This dimensional change creates a more efficient load-bearing architecture that provides superior strength without proportionally increasing weight or external thickness.

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

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 solution effectively prevents deformation of the chassis, maintaining image quality and reducing manufacturing costs, especially in large-sized displays like televisions over 55 inches, by reinforcing the bottom chassis while keeping the design lightweight and cost-effective.

Implementation Method 1

The strength reinforcing member and the bottom chassis may be attached by an adhesive, and the cover member and the strength reinforcing member may be attached by an adhesive.

Methodology Applied
Scientific EffectAdhesive bonding: Adhesive

Implementation Method 2

The adhesive may be a hot melt adhesive.

Methodology Applied
Scientific EffectHot melt adhesive bonding: Adhesive

Implementation Method 3

A heat sink for transmitting heat generated by the light source to the bottom chassis may be provided between the light source PCB and bottom chassis.

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS9310647B2Liquid crystal display apparatus having reinforcement
Publication Date: 2016.04.12 SAMSUNG ELECTRONICS CO LTD
  • US9310647B2 patent drawing
  • US9310647B2 patent drawing
  • US9310647B2 patent drawing

AI summary

A liquid crystal display is provided. The liquid crystal display includes a liquid crystal panel which is configured to display an image; a backlight which is configured to supply light for displaying the image on the liquid crystal panel; a top chassis and bottom chassis which package the liquid crystal panel and backlight unit in one module; and a strength reinforcing member which is mounted to an internal surface of the bottom chassis to reinforce a strength of the bottom chassis.