Hook Coupling for LCD Panel Assembly Reliability

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Solution Overview

Problem

Existing liquid crystal display devices face challenges in coupling the liquid crystal panel and backlight unit effectively, leading to potential damage and assembly difficulties.

Innovation Solution

The implementation of hooks on the guide panel and cover bottom, which protrude from their surfaces and fit into corresponding latching portions on the rear cover, facilitates a secure and efficient assembly of the liquid crystal display device by providing a strong coupling force and alleviating size and rigidity differences between components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing coupling mechanisms are used to assemble the liquid crystal panel and backlight unit, then the components can be connected, but the assembly is difficult to couple properly and may damage the panel

Engineering Contradiction:
Improveassembly reliabilityVSAvoidassembly ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The coupling mechanism is divided into separate hook structures on the guide panel and cover bottom that independently engage with latching portions on the rear cover. This segmentation allows each component to be coupled separately and securely, preventing damage during assembly while ensuring proper connection.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The hook structures are pre-formed on the guide panel and cover bottom before assembly. These pre-formed hooks are designed to automatically engage with the latching portions on the rear cover during the assembly process, eliminating the need for complex coupling operations and preventing panel damage.

Inventive Principle:
Principle #10Preliminary action

2Strength

If hooks are added to couple components securely, then adhesion between components improves, but device complexity increases

Engineering Contradiction:
Improvecoupling strengthVSAvoidstructural complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The hook structures serve multiple functions: they provide coupling strength, align components during assembly, and secure the liquid crystal panel and backlight unit to the rear cover. By merging these functions into a single structural feature, the design achieves strong coupling without proportionally increasing complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The hook structures are designed to automatically engage with the latching portions on the rear cover during assembly. The hooks self-align and self-secure the components without requiring additional fastening operations or complex mechanisms, maintaining simplicity while ensuring strong coupling.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS10768459B2Liquid crystal display device
Publication Date: 2020.09.08 LG DISPLAY CO LTD
  • US10768459B2 patent drawing
  • US10768459B2 patent drawing
  • US10768459B2 patent drawing

AI summary

A liquid crystal display device is provided. The liquid crystal display device includes a liquid crystal panel, a cover bottom, a rear cover, and a guide panel. The liquid crystal panel displays an image. The cover bottom accommodates a light source configured to provide light to the liquid crystal panel. The rear cover accommodates the cover bottom. The guide panel is positioned on the cover bottom to support the liquid crystal panel. Each of the guide panel and the cover bottom includes a hook which protrudes from a surface so as to be fitted to a latching portion of the rear cover.