One-Piece Display Bezel With Spring Arms for LCD Mounting

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

The manufacturing process of display devices is complex and costly due to the large number of components, which requires precise adjustments and can lead to redesigns when dimensions change, making it difficult to mount the display glass without errors and increasing production expenses.

Innovation Solution

A display device design featuring a one-piece plastic body with guide grooves and spring arms for resilient mounting of the display panel, allowing for horizontal insertion and secure locking, along with latching elements for precise positioning on the circuit board, eliminating the need for heat-seal processes and enabling flexible assembly with existing components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the display bezel is composed of several plastic bodies with the display clamped between them, then the display can be securely held, but the manufacturing process becomes complex and costly with frequent adjustments required

Engineering Contradiction:

Improvesecure holding of displayVSAvoidnumber of plastic bodies

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple plastic bodies into a single one-piece formed display bezel that integrates the housing structure, guide grooves, and spring arm mounting points. This merging eliminates the complexity of assembling multiple separate components while maintaining the secure holding function through integrated spring arms that resiliently hold the display in the inserted position.

Inventive Principle:

Principle #5Merging (Combining)

2Reliability

If traditional mounting methods with multiple components are used, then the display can be attached to the circuit board, but the assembly process is cumbersome and expensive requiring precise adjustments

Engineering Contradiction:

Improveattachment to circuit boardVSAvoidassembly process

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The one-piece formed display bezel is pre-integrated with guide grooves and spring arm mounting structures during manufacturing. This preliminary integration of mounting features eliminates the need for complex assembly adjustments during final assembly, as the guide grooves automatically align the display with the circuit board and the spring arms self-adjust to secure the display.

Inventive Principle:

Principle #10Preliminary action

3Adaptability or versatility

If the display dimensions change, then new display models can be created, but complete product redesign and tooling modifications are required

Engineering Contradiction:

Improvedisplay model variationVSAvoidredesign requirements

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The one-piece formed display bezel is designed as a universal mounting structure with standardized guide grooves and spring arm configurations that can accommodate different display sizes and dimensions. This universal design allows the same bezel structure to be used across multiple display models, eliminating the need for complete redesigns when display dimensions change.

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Reliability

If locking elements are added to attach the display assembly to the circuit board, then secure attachment is achieved, but error-free mounting in the vertical direction becomes almost impossible

Engineering Contradiction:

Improveattachment securityVSAvoidmounting accuracy

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

Instead of attempting to achieve precise vertical alignment through complex locking elements and adjustment mechanisms, the patent inverts the approach by using guide grooves that guide the display horizontally into position, with spring arms that resiliently secure the display. This inversion from precision mechanical locking to resilient guiding and holding simplifies the mounting process and reduces sensitivity to positioning errors.

Inventive Principle:

Principle #13The other way round (Inversion)

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 design simplifies and cost-reduces the assembly process by allowing for flexible use of existing displays in various devices, reducing the need for frequent tool adjustments and redesigns, while ensuring accurate electrical connections and stress resilience.

Implementation Method 1

the display is held resiliently in the inserted position by at least one spring arm locking behind its end

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

the display is held resiliently in the inserted position by at least one spring arm locking behind its end

Methodology Applied

Scientific EffectSpring: Spring

Data Source

PatentEP3396930B1Assembly frame for LCD

Publication Date: 2019.11.20 GIGASET COMMUNICATIONS GMBH

Figure 1~1a
Figure 2~2a
Figure 3~3a

AI summary

The invention relates to a display device, in particular for mobile phones, in which a display (200) is received in a display bezel (100) with a glass pane effect for viewing, wherein the one-piece formed display bezel (100) covers the display (200), the display bezel (100) is provided with guide grooves (102, 102') for inserting the display (200), characterized in that the display (200) is held resiliently in the inserted position by at least one spring arm (101, 101') which engages behind its end.