Frame Assembly Snap-Fit Fixing for Display Devices

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Solution Overview

Problem

Conventional methods for fixing the outer frame of liquid crystal display devices using screws can damage the structure and affect the appearance, leading to poor assembly robustness and aesthetics.

Innovation Solution

A frame assembly comprising a back plate, first and second frames, and a fixing assembly with annular engaging structures and a fixing member that inserts along the extending direction, reducing the need for screws and simplifying the assembly process while enhancing the appearance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If screws are used to fix the outer frame, then the assembly is secure, but the structure is damaged and appearance is affected

Engineering Contradiction:

Improveassembly robustnessVSAvoidstructure damage and appearance degradation

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The outer frame is divided into multiple modular sections with independent engaging structures, allowing assembly without penetrating fasteners. Each section can be engaged separately through snap-fit or interlocking mechanisms, maintaining structural integrity while avoiding screw holes that compromise appearance and strength.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The traditional screw-based mechanical fastening system is replaced with a snap-fit or interlocking engaging structure system. This substitution eliminates the need for penetrating fasteners while maintaining secure assembly through elastic deformation and geometric interlocking, thereby preserving the outer frame's appearance and structural properties.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If multiple screws are used to fix the frame components, then the assembly is secure, but the device complexity increases

Engineering Contradiction:

Improveassembly robustnessVSAvoidnumber of screws and assembly steps

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

Multiple screw fastening operations are merged into a single snap-fit engagement action. The engaging structures are designed to simultaneously secure multiple frame components through a single insertion or clipping motion, reducing the number of discrete assembly steps and fastening elements while maintaining secure assembly.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The engaging structures are designed with universal applicability to secure different frame components (outer frame, mold frame, backlight module, display panel) using the same mechanism. This multi-functional design eliminates the need for different types and numbers of screws for different components, simplifying the overall assembly process and reducing part count.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS10197832B2Frame assembly and display device

Publication Date: 2019.02.05 RADIANT OPTO ELECTRONICS SUZHOU

AI summary

A frame assembly and a display device are provided. The frame assembly includes a back plate, a first frame and a fixing assembly. The back plate comprises at least one side edge, and the side edge has an extending direction. The first frame is combined with the back plate. The fixing assembly includes at least one first engaging structure, at least one second engaging structure and a fixing member. The first engaging structure is disposed on the at least one side edge of the back plate. The second engaging structure is disposed on at least one side edge of the first frame. The fixing member is inserted into and combined with the at least one first engaging structure and the at least one second engaging structure along the extending direction.