Grooved Glass Housing Patterning for Sharper Laser Engraving
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for forming patterns on electronic device housings, such as those using nano-second laser beams, face challenges in achieving high sharpness and efficiency while minimizing the use of auxiliary materials and reducing process costs.
Innovation Solution
The proposed solution involves forming a concave-convex layer with multiple grooves on a glass layer of an electronic device's housing, where a nano-second laser beam is used to engrave patterns by multi-reflection and multi-absorption on the inner walls of the grooves, thereby improving pattern sharpness and reducing process time and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a nano-second laser beam is used to form patterns on a flat glass layer, then the process is simple and fast, but the pattern sharpness and visibility are insufficient
Solution Approach 1:
The glass layer surface is divided into multiple grooves that segment the laser beam path. Each groove acts as an independent channel for laser multi-reflection, enabling precise pattern formation within each segmented region while maintaining overall structural integrity
Solution Approach 2:
The solution transitions from a two-dimensional flat surface to a three-dimensional grooved structure. By adding vertical depth dimensions to the glass layer through groove formation, the laser beam undergoes multi-reflection within the groove depths, significantly enhancing pattern sharpness and visibility without complicating the overall device architecture
2Manufacturing precision
If conventional laser engraving is used on flat surfaces, then the process is straightforward, but pattern visibility and sharpness are poor
Solution Approach 1:
The grooved structure is pre-formed on the glass layer before laser pattern engraving. This preliminary structural preparation creates optimal conditions for subsequent laser multi-reflection, ensuring high pattern visibility and sharpness while maintaining manufacturing efficiency through a two-stage process
3Manufacturing precision
If auxiliary materials are used to enhance pattern formation, then pattern quality improves, but process costs increase
Solution Approach 1:
The grooved structure on the glass layer serves as a self-contained optical system that guides and multi-reflects the laser beam internally. This self-service mechanism eliminates the need for external auxiliary materials or complex optical components, achieving high pattern quality through the inherent geometric properties of the grooves while reducing material consumption and process costs
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 approach enables the formation of patterns with improved sharpness and visibility on electronic device housings, even when using a nano-second laser beam, while reducing the need for auxiliary materials and lowering process costs, thus enhancing the practicality and commercial viability of the pattern formation process.
Implementation Method 1
inner walls of partial grooves of the plurality of grooves are configured to multi-reflect and multi-absorb a nano-second laser beam radiated to the partial grooves
Implementation Method 2
inner walls of partial grooves of the plurality of grooves are configured to multi-reflect and multi-absorb a nano-second laser beam radiated to the partial grooves
Implementation Method 3
a nano-second laser beam is used to engrave patterns by multi-reflection and multi-absorption on the inner walls of the grooves
Data Source
AI summary
An electronic device including a housing in which a pattern is formed, and a method for forming the pattern are provided. The electronic device includes: a housing; a glass layer on a rear surface of the housing; a concave-convex layer formed on the glass layer, the concave-convex layer including a plurality of grooves formed in a surface thereof; and at least one pattern engraved on the concave-convex layer, wherein inner walls of partial grooves of the plurality of grooves are configured to multi-reflect and multi-absorb a nano-second laser beam radiated to the partial grooves to engrave the at least one pattern on the concave-convex layer.