Overlay Applicator Cradle for Precise, Bubble-Free Screen Alignment

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Solution Overview

Problem

The application of overlays to electronic device screens often results in misalignment, air bubbles, and contamination issues due to dust, fingerprints, and other particulates.

Innovation Solution

A cradle and overlay applicator system that includes an alignment mechanism, adhesive release liner, pull tab, and wiper to facilitate precise alignment and clean application of overlays, ensuring adhesion without bubbles and contaminants.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If manual application methods are used, then device complexity is reduced, but manufacturing precision deteriorates due to misalignment and installation errors

Engineering Contradiction:
Improveoverlay alignment precisionVSAvoidapplication system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent introduces a cradle as an intermediary device between the overlay applicator and the electronic device. The cradle includes a base with an alignment base and frame pieces that securely hold the electronic device, providing a stable intermediary platform that ensures precise alignment during overlay application while keeping the overall system relatively simple

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If simple application trays are used, then device complexity is minimized, but reliability deteriorates due to air bubbles and contamination issues

Engineering Contradiction:
Improveoverlay adhesion qualityVSAvoidapplication device complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements preliminary actions by including a wiper that cleans the screen of the electronic device before overlay application, and an adhesive release liner that protects the adhesive surface until ready for application. These preliminary actions prevent contamination and air bubbles, ensuring reliable adhesion without requiring complex additional devices

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The adhesive release liner acts as an intermediary protective layer between the adhesive surface and the environment. It prevents contamination and air bubble formation by maintaining a controlled interface until the moment of application, thereby improving reliability without significantly increasing device complexity

Inventive Principle:
Principle #24Intermediary (Mediator)

3Manufacturing precision

If precise alignment mechanisms are added, then manufacturing precision is improved, but ease of operation deteriorates due to complex alignment procedures

Engineering Contradiction:
Improveoverlay alignment precisionVSAvoidalignment operation ease
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The cradle's frame pieces are designed to securely hold the electronic device in a fixed position with respect to the alignment base. This self-positioning feature allows the device to automatically align itself during placement, providing precise alignment without requiring complex manual adjustment procedures, thereby maintaining ease of operation

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3932649B1Cradle for an overlay applicator
Publication Date: 2025.10.01 BELKIN INTERNATIONAL INC
  • EP3932649B1 patent drawingFigure 1
  • EP3932649B1 patent drawingFigure 2
  • EP3932649B1 patent drawingFigure 3

AI summary

According to an embodiment of the present invention, there is provided a cradle (3100) comprising a base (3110); an alignment base (3112) configured to engage with an alignment mechanism of an overlay applicator (3000); and one or more frame pieces (3120, 3130, 3140) configured to securely hold an electronic device (3401) in a device slot (3111) in a fixed position with respect to the alignment base (3112). The base (3110), the alignment base (3112), and the one or more frame pieces (3120, 3130, 3140) are configured to hold the overlay applicator (3000) between the base (3110) and a screen of the electronic device when the screen of the electronic device is facing toward the base (3110); and facilitate applying an overlay (2930) of the overlay applicator (3000) to the screen of the electronic device (3401). Other embodiments are provided.