Display Frame Structure Using Insert Molding to Reduce Complexity

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional liquid crystal display device frames are complex in structure and space, leading to increased width, assembly complications, higher costs, and weight due to the need for additional clamping parts and outer shells, which contradict the trend of compact designs.

Innovation Solution

A display device frame is created using plastic injection molding where a plastic outer frame encloses a metallic back panel, eliminating the need for a front frame and utilizing metallic support to achieve a thinner design, while integrating plastic and metal through insert molding to simplify assembly and reduce costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If clamping parts and outer shell are added to engage front frame and back light module, then structural integrity is improved, but device width and complexity increase

Engineering Contradiction:
Improvestructural integrityVSAvoidframe structure complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent combines the functions of the outer shell and clamping mechanism into a single integrated frame structure. The frame body includes integrated clamping portions that directly engage with the back light module, eliminating the need for separate clamping parts and outer shell assemblies. This merging reduces the number of components while maintaining structural integrity and clamping functionality.

Inventive Principle:
Principle #5Merging (Combining)

2Stability of the object's composition

If multiple separate components (front frame, back panel, clamping parts) are assembled, then structural integrity is improved, but assembly complexity and cost increase

Engineering Contradiction:
Improvestructural integrityVSAvoidassembly simplicity
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The patent merges the front frame, back panel, and clamping mechanism into a single integrated frame component. This unified structure is manufactured as one piece, eliminating the need for complex multi-step assembly processes involving multiple separate components. The integration maintains structural integrity while dramatically simplifying manufacturing and assembly operations.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If conventional frame structure with multiple components is used, then clamping function is improved, but device weight increases

Engineering Contradiction:
Improveclamping functionVSAvoidframe weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The patent combines multiple clamping functions into a single integrated frame structure with built-in clamping portions. This eliminates the need for separate clamping parts and reduces the overall number of components required. The integrated design maintains effective clamping functionality while reducing total frame weight through component consolidation.

Inventive Principle:
Principle #5Merging (Combining)

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 approach results in a lighter, simpler, and thinner display device frame that aligns with compact design trends, reducing assembly complexity and costs while maintaining structural integrity.

Implementation Method 1

The frame is manufactured primarily by plastic injection molding, wherein a plastic material is enclosed on a side of a metallic back panel to form a plastic outer frame

Methodology Applied
Scientific EffectPlastic injection molding:

Implementation Method 2

by using the insert molding method in which plastic encloses a metal part, no extra work procedures will be needed

Methodology Applied
Scientific EffectInsert molding:

Data Source

PatentUS10451907B2Frame structure for a display device frame
Publication Date: 2019.10.22 WISTRON CORP
  • US10451907B2 patent drawing
  • US10451907B2 patent drawing
  • US10451907B2 patent drawing

AI summary

The present invention discloses a frame structure for a display device including a metallic back panel having a lateral edge extended from a side of the metallic back panel and a plastic outer frame having two clip parts. The lateral edge is having two side surfaces. The lateral edge is formed integrally with the metallic back panel. An included angle is formed between an inner side of the metallic back panel and an inner side of the lateral edge. A bended corner is formed between an outer side of the metallic back panel and an outer side of the lateral edge. The bended corner is in a shape of an arc. The two clip parts are in a clipping state to clip the two side surfaces of the lateral edge. The plastic outer frame completely encloses the two side surfaces, the included angle and the bended corner by injection molding.