Display Back Casing Snap-Fit Structure for Faster Assembly

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Solution Overview

Problem

The existing mounting structures between the rear housing and the backplane in display devices require screwing and unscrewing, which is time-consuming and reduces assembly and disassembly efficiency.

Innovation Solution

A mounting structure comprising a backplane with a first engaging structure of integrally formed or detachably connected engaging beams and a rear housing with a second engaging structure of engaging hooks, allowing for direct engagement and fixation without the need for screws.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If screw mounting structure is used between rear housing and backplane, then connection reliability is improved, but assembly and disassembly time increases

Engineering Contradiction:

Improveconnection reliabilityVSAvoidassembly and disassembly time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The mounting structure is segmented into multiple independent engaging beams (first engaging structure on backplane, second engaging structure on rear housing) that can be engaged simultaneously, replacing the sequential screw-by-screw fastening process with parallel engagement of multiple structural elements

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The screw-based mechanical fastening system is replaced with a snap-fit engaging structure where the engaging beams and engaging hooks form an automatic locking mechanism through geometric interlocking, eliminating the need for threaded fasteners

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of manufacture

If engaging beams are integrally formed with backplane substrate, then manufacturing complexity is reduced, but repairability and replacement flexibility deteriorate

Engineering Contradiction:

Improvemanufacturing complexityVSAvoidrepairability and replacement flexibility

Core Design Contradiction:

Ease of manufactureVSEase of repair

Solution Approach 1:

The connecting structure serves multiple functions: it provides integral formation for manufacturing simplicity, enables detachable connection for repairability, and allows for standardized replacement of engaging beams without requiring replacement of the entire backplane substrate

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The mounting structure transitions from a static integral formation to a dynamic detachable connection system, where the engaging beams can be selectively removed and reattached through the connecting structure, providing operational flexibility while maintaining structural integrity

Inventive Principle:

Principle #15Dynamics

Data Source

PatentEP3806072B1Installation structure for back casing of display device and display device

Publication Date: 2025.05.14 BOE TECHNOLOGY GROUP CO LTD

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AI summary

An installation structure for a back casing (200) of a display device (300), comprising: a back plate (100), comprising a back plate substrate (1) and a first clamping structure (31) arranged at a side of the back plate substrate (1); and the back casing (200), comprising a back casing substrate (2) and a second clamping structure (32) arranged at a side of the back plate substrate (2). The first clamping structure (31) and the second clamping structure (32) match each other to carry out clamping so that the back plate (100) and the back casing (200) are fixed to each other.