Mobile Display Glass Shield Replacement via Intermediate Layer Cutting

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The cost of replacing damaged display screens on mobile devices is prohibitively expensive due to the difficulty in separating the broken glass from the electronic display component without damaging it, making repair impractical.

Innovation Solution

A method and apparatus that uses a thin wire or blade to penetrate the intermediate layer between the glass and the electronic display, allowing for the separation of the glass from the display unit without damaging the electronic component, utilizing a machine with a movable bed and guide rollers to align and drive the cutting element through the intermediate layer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If traditional display screen replacement methods are used, then the glass can be replaced, but the electronic display unit must be replaced entirely, making the repair cost prohibitive

Engineering Contradiction:
Improvedisplay screen repairabilityVSAvoiddisplay unit structure
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The invention segments the display assembly into three distinct layers: the glass protective layer, the intermediate bonding layer, and the electronic display unit. By introducing a cutting wire that penetrates through the intermediate layer, the method enables separation of the glass from the display unit without damaging the electronic components, allowing selective replacement of only the glass portion.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention extracts the glass layer from the composite display structure by cutting through the intermediate bonding layer. This extraction allows the glass to be removed and replaced independently while preserving the expensive electronic display unit, directly addressing the cost prohibitive issue of traditional replacement methods.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of repair

If the glass is separated from the display unit, then repair cost is reduced, but the risk of damaging the electronic display component increases

Engineering Contradiction:
Improverepair costVSAvoiddisplay component integrity
Core Design Contradiction:
Ease of repairVSReliability

Solution Approach 1:

The intermediate bonding layer serves as a mediator between the glass and the electronic display unit. The cutting wire penetrates through this intermediate layer to separate the glass from the display unit. The intermediate layer acts as a protective buffer that absorbs the cutting action, preventing direct contact between the wire and the fragile electronic display components, thus enabling safe separation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention applies local quality by concentrating the cutting action specifically at the intermediate layer while protecting the electronic display unit. The wire is positioned and controlled to cut only through the intermediate bonding material, leaving the electronic components untouched. This localized cutting approach enables glass removal while maintaining display component integrity.

Inventive Principle:
Principle #3Local quality

3Ease of manufacture

If a cutting wire is used to separate the glass, then the glass can be removed without replacing the display unit, but precise alignment and positioning are required

Engineering Contradiction:
Improveglass replacement feasibilityVSAvoidwire alignment precision
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The invention employs dynamic positioning mechanisms including a movable bed that can slide along rails and adjustable guide rollers that can move vertically to accommodate different display unit positions. The wire is driven through the intermediate layer with controlled movement, allowing precise alignment to be achieved and maintained during the cutting process, thereby reducing the stringency of initial positioning requirements.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11097439B2Method and apparatus for display screen shield replacement
Publication Date: 2021.08.24 VIKING TECH LC
  • US11097439B2 patent drawing
  • US11097439B2 patent drawing
  • US11097439B2 patent drawing

AI summary

A method and apparatus for replacement of damages display shield (typically glass) covering a display screen on a device, typically a mobile phone. Mobile phones have an electronic display protected by a glass shield. Between the glass and the display is often a plastic polarizing or other intermediary sheet. Removal of a damage glass can be accomplished by cutting thru the polarizer with a moving wire or blade. This separates the glass from the sensitive display and allows replacement of the glass without damaging the more expensive display.