Display Device Back Cover Sliding Connection and Adhesive Bonding

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Solution Overview

Problem

Existing display devices face challenges in efficiently connecting and stabilizing components, such as back covers and display modules, which can lead to increased manufacturing costs and thickness, while maintaining structural integrity and visibility.

Innovation Solution

A display device configuration featuring a sliding connection between the back cover and display module, utilizing protrusions and connectors, and a guide panel with adhesive layers and resin materials to reduce fastening members and enhance rigidity, allowing for a thinner and more visually appealing design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If traditional fastening members (screws, clips) are used to connect the back cover and display module, then structural stability is improved, but device complexity and manufacturing cost increase

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

Solution Approach 1:

The patent replaces traditional mechanical fastening members (screws, clips) with an adhesive layer to connect the back cover and display module. This substitution eliminates the need for multiple fastening components while maintaining structural stability, thereby reducing device complexity and manufacturing cost.

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

Solution Approach 2:

The patent merges the connection function previously performed by separate fastening members into a single adhesive layer. This consolidation integrates the bonding function directly into the assembly process, eliminating the need for additional fastening components and simplifying the overall structure.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If multiple fastening members are used to secure components, then connection reliability is improved, but the device thickness increases

Engineering Contradiction:
Improveconnection reliabilityVSAvoiddevice thickness
Core Design Contradiction:
ReliabilityVSLength of stationary object

Solution Approach 1:

The patent replaces mechanical fastening members that would add significant thickness with a thin adhesive layer. The adhesive provides sufficient bonding strength to ensure connection reliability while maintaining a compact, thin device profile.

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

3Strength

If traditional connection methods with multiple components are used, then structural integrity is maintained, but manufacturing cost increases

Engineering Contradiction:
Improvestructural integrityVSAvoidmanufacturing cost
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The patent merges multiple fastening components into a single adhesive layer, reducing the number of parts that need to be manufactured, inventoried, and assembled. This consolidation simplifies the supply chain and manufacturing process, thereby reducing overall manufacturing cost while maintaining structural integrity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent replaces complex mechanical fastening systems with a simpler adhesive bonding system, which requires fewer manufacturing steps, less precise assembly, and fewer specialized components, all of which contribute to reduced manufacturing cost.

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

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 configuration simplifies the manufacturing process, reduces the device's thickness, and improves structural stability and visibility by eliminating the need for screws and other fastening members, while maintaining the display's structural integrity and aesthetic appeal.

Implementation Method 1

a guide panel 200, on which the adhesive layer is disposed, is connected to the back surface of the back substrate 102

Methodology Applied
Scientific EffectAdhesion: Adhesive

Data Source

PatentEP2950136B1Display device
Publication Date: 2019.02.27 LG ELECTRONICS INC
  • EP2950136B1 patent drawingFigure 1
  • EP2950136B1 patent drawingFigure 2
  • EP2950136B1 patent drawingFigure 3

AI summary

A display device includes a display module (100m) including a display panel (100) including a front substrate (101) and a back substrate (102), a guide panel (200) positioned at an edge of a back surface of the display panel, and a frame (1000) which is positioned in the rear of the display panel and is connected to the guide panel, and a back cover (120) positioned in the rear of the display panel. The back cover includes a first protrusion (1210), which is formed in a first side area and includes a portion extending toward a second side area opposite the first side area, and a second protrusion (1220) which is formed in the second side area and includes a portion extending toward the first side area. The display module includes a first connector (1310) connected to the first protrusion and a second connector (1320) connected to the second protrusion.