Curved Display Coupling via Parallel Protrusions

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Solution Overview

Problem

The existing coupling methods for curved display apparatuses are inconvenient, prone to breakage, and time-consuming, particularly due to mismatched angles of protrusion and recessed structures on the middle and back covers, and rely heavily on screw fastening, increasing the complexity and cost of assembly and disassembly.

Innovation Solution

A display apparatus design featuring a middle module with parallel protrusion portions and a back module with corresponding locking portions, allowing for easy hook coupling and assembly without altering the curvature, and incorporating a reinforcement portion to maintain rigidity and stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If protrusion structures are formed on the rear surface of the middle cover to engage with recessed structures on the back cover, then coupling between the middle cover and back cover is achieved, but the process becomes inconvenient and prone to breakage due to mismatched angles on curved surfaces

Engineering Contradiction:
Improvecoupling reliabilityVSAvoidcoupling convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent applies asymmetry by making the protrusion portions parallel to each other rather than perpendicular to the curved surface, creating an asymmetric coupling configuration that resolves the angle mismatch problem on curved surfaces

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

Instead of making protrusions perpendicular to the curved surface (conventional approach), the patent inverts the approach by making them parallel to each other, which eliminates the angle mismatch issue and allows simultaneous insertion

Inventive Principle:
Principle #13The other way round (Inversion)

2Reliability

If screw fastening is used to couple the middle cover and back cover, then secure coupling is achieved, but the assembly time and cost increase

Engineering Contradiction:
Improvecoupling strengthVSAvoidassembly time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces the screw fastening mechanical system with a hook coupling system where protrusion portions with hook portions engage with locking portions, achieving secure coupling without requiring screws or complex fastening mechanisms

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The hook coupling structure is designed to self-lock when the protrusion portions are inserted into the locking portions, eliminating the need for additional fastening operations or tools

Inventive Principle:
Principle #25Self-service

3Stability of the object's composition

If multiple screw fastening points are used to maintain curvature and rigidity, then structural stability is achieved, but the device complexity and manufacturing cost increase

Engineering Contradiction:
Improvecurvature stabilityVSAvoidassembly complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent segments the coupling function into multiple distributed hook coupling points (protrusion portions and locking portions) along the curved surface, maintaining structural stability through distributed attachment points rather than relying on multiple screw fastenings

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11385679B2Display device
Publication Date: 2022.07.12 LG ELECTRONICS INC
  • US11385679B2 patent drawing
  • US11385679B2 patent drawing
  • US11385679B2 patent drawing

AI summary

A display device according to the present invention comprises: a display module curved in a forward-and-backward direction; a middle module curved to be coupled to a rear side of the display module; and a back module curved to be coupled to a rear side of the middle module, wherein the middle module comprises a plurality of coupling parts arranged spaced apart from each other along a curved direction of the middle module, the back module comprises a plurality of coupling counterparts, which are coupled to the plurality of coupling parts, respectively, and among the plurality of coupling parts and the plurality of coupling counterparts, one is a plurality of protrusion parts protruding in parallel with each other, and the other one is a plurality of hook parts which engage with the plurality of protrusion parts, respectively.