Electronic Device Surface Refurbishment via Chemical Etching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods, including buffing, fail to effectively remove deep scratches from glass surfaces of electronic device screens and digitizers, resulting in unsatisfactory cosmetic appearance and poor adhesion of clear coatings, making refurbishment impractical.
Innovation Solution
A method involving surface abrasion with diamond or aluminum oxide particles, followed by cleaning and activation, and application of a coating resin comprising a blend of hydroxyl functional dendritic polymer, acrylic polyol, and metal oxide nanoparticles, which cures to provide a scratch-resistant, chemically resistant, and cosmetically appealing finish.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If buffing is used to remove scratches from glass surfaces, then the surface appears smoother, but deep scratches remain and adhesion of clear coatings deteriorates
Solution Approach 1:
The patent changes the fundamental parameter of surface treatment from mechanical buffing to chemical etching using fluorosurfactant composition. This chemical approach selectively removes damaged glass layers containing deep scratches while creating a micro-roughened surface that enhances coating adhesion, thereby resolving the contradiction between surface smoothness and coating adhesion.
Solution Approach 2:
The fluorosurfactant composition acts as a strong chemical etchant that accelerates the removal of damaged glass surface layers. The composition contains fluorinated compounds that chemically react with and etch away the glass surface, effectively removing deep scratches that mechanical buffing cannot eliminate, while simultaneously creating a surface morphology that promotes coating adhesion.
2Shape
If deep scratches are not removed, then the cosmetic appearance deteriorates, but aggressive methods may damage the glass surface
Solution Approach 1:
The fluorosurfactant composition serves as a chemical intermediary that selectively removes damaged glass layers without directly damaging the underlying healthy glass. The composition is formulated to etch only the compromised surface layers containing scratches, while the healthy glass remains intact, thus improving cosmetic appearance without causing additional surface damage.
Solution Approach 2:
The patent changes the surface treatment parameter from mechanical force (buffing) to controlled chemical etching. This parameter change allows for selective removal of damaged layers at a molecular level, effectively eliminating deep scratches while preserving the integrity of the remaining glass surface, thereby improving cosmetic appearance without causing harm.
3Shape
If new components are used to replace scratched ones, then the cosmetic appearance is restored, but cost and environmental impact increase
Solution Approach 1:
Instead of discarding the entire scratched component and replacing it with a new one, the patent recovers and refurbishes the existing component by selectively removing only the damaged surface layers. This approach retains the valuable base component while eliminating superficial defects, thereby reducing material waste and environmental impact while restoring cosmetic appearance.
Solution Approach 2:
The patent performs preliminary surface preparation through chemical etching before applying the clear coating. This preliminary action of removing damaged layers and creating a receptive surface morphology ensures that the subsequent coating adheres properly and provides a like-new cosmetic appearance, eliminating the need for complete component replacement.
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
The method effectively refurbishes electronic device surfaces to appear scratch-free and shiny, with high scratch resistance, chemical resistance, and long-term weather resistance, while minimizing environmental impact and material waste.
Implementation Method 1
abrading a surface to be refurbished with an abrasive to remove a coating on the surface
Implementation Method 2
contacting the secondly cleaned surface with an activator to provide an activated surface
Implementation Method 3
disposing a coating resin on the abraded and optionally activated surface
Implementation Method 4
curing the coating resin to provide a coated surface to refurbish the surface
Data Source
AI summary
A method of refurbishing a surface of a component for an electronic device includes: abrading a surface to be refurbished with an abrasive to remove a coating on the surface and provide an abraded surface; optionally firstly cleaning the abraded surface by contacting with a glass cleaner to provide a firstly cleaned surface; optionally secondly cleaning the firstly cleaned surface by contacting the firstly cleaned surface with a grease remover to provide a secondly cleaned surface; optionally contacting the secondly cleaned surface with an activator to provide an activated surface; and disposing a coating resin on the abraded and optionally activated surface; and curing the coating resin to provide a coated surface to refurbish the surface of the electronic device.