Screen Polishing Control for Scratch Removal Without Heat Damage
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Solution Overview
Problem
Existing methods for polishing electronic device screens face challenges such as scratches, swirls, and potential damage due to improper polishing angles or excessive heat, leading to high costs and inefficiencies in screen replacement or repair.
Innovation Solution
An electronic device screen polishing apparatus with a frame, movable table, and actuator-controlled polishing machine, featuring a specialized chuck and extruding polishing paste system, ensures precise pressure and angle application for uniform polishing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual polishing is performed to remove scratches, then screen appearance is improved, but swirls and new scratches may occur due to incorrect polishing angle
Solution Approach 1:
The patent replaces manual mechanical polishing with an automated polishing machine that uses a polishing pad and controlled mechanical motion. The machine applies consistent pressure and maintains proper polishing angles through automated control, eliminating the human error that causes swirls and new scratches.
Solution Approach 2:
The patent controls critical polishing parameters including pressure (through adjustable mechanical systems), speed (through motor control), and angle (through fixed polishing head geometry). These parameter controls ensure consistent, scratch-free polishing while preventing swirl marks by maintaining optimal polishing conditions throughout the process.
2Manufacturing precision
If polishing pressure is increased to remove deeper scratches, then scratch removal effectiveness is improved, but screen damage risk increases due to excessive heat
Solution Approach 1:
The polishing machine employs periodic or controlled intermittent polishing action with regulated pressure application. The system can adjust pressure dynamically during the polishing process, applying higher pressure only when needed for deeper scratches while allowing cooling intervals to prevent heat buildup that could damage the screen.
Solution Approach 2:
The patent introduces polishing paste as an intermediary substance between the polishing pad and screen surface. This paste acts as a buffer that allows effective scratch removal at lower pressures, reducing direct mechanical stress and heat generation on the screen while still achieving the desired scratch removal效果.
3Manufacturing precision
If screen replacement is performed to eliminate scratches, then screen appearance is restored, but device cost and complexity increase
Solution Approach 1:
Instead of discarding the scratched screen entirely, the patent recovers and restores it through automated polishing. The polishing process removes the damaged surface layer and restores the screen to a like-new condition, eliminating the need for complete screen replacement and associated device disassembly/reassembly complexity.
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
Effectively polishes electronic device screens without damaging them, reducing the need for replacement and enhancing the usability of refurbished devices.
Implementation Method 1
a polishing device positioned above a movable table
Implementation Method 2
polishing of an electronic device screen
Data Source
AI summary
An electronic device screen polishing apparatus and a method for the same are shown and described. The electronic device screen polishing apparatus includes a frame creating a first compartment. The first compartment houses a polishing device positioned above a movable table. A computer having a non-transient storage medium is housed within the frame. A logic stored on the non-transient storage medium. The logic defines a polishing sequence. The polishing sequence defines polishing of an electronic device screen.