Curved Mesh Electrode Layout for Low-Reflection Touch Screens
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Solution Overview
Problem
Existing multimedia electronic devices face challenges in reducing visibility due to external light reflection, particularly when using touch-based input methods and pens for precise input, which can be distracting and affect user experience.
Innovation Solution
The electronic device incorporates a conductive layer design with specific electrode patterns and bridge patterns, featuring mesh lines with curved and straight-line end portions, to enhance visibility by minimizing external light reflection and improve touch and pen input sensitivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional conductive layer design with straight mesh lines is used, then manufacturing is simple, but external light reflection is reduced and visibility is improved
Solution Approach 1:
The patent applies curvature to the end portions of mesh lines in the conductive layer patterns. Specifically, first end portions of mesh lines have a curvature while second end portions have a straight-line shape. This curvature design changes the reflection characteristics of external light, reducing visible reflections and improving display visibility without complicating the manufacturing process.
2Object-affected harmful factors
If the mesh lines have curved end portions, then external light reflection is reduced and visibility is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies local quality by differentiating the shapes of different portions of mesh lines. First end portions have a curvature to reduce light reflection, while second end portions maintain a straight-line shape for easier manufacturing and alignment. This localized differentiation allows the patent to achieve visibility improvement without requiring high precision across the entire pattern structure.
Data Source
AI summary
An electronic device includes: a first electrode including a plurality of first patterns, and a first bridge pattern electrically connected to the plurality of first patterns; a second electrode crossing the first electrode; a third electrode overlapping with at least a portion of the first electrode; and a fourth electrode crossing the third electrode, and including second patterns, and a second bridge pattern electrically connected to the second patterns. The first bridge pattern, the third electrode, and the second patterns are included in a first conductive layer. The plurality of first patterns, the second electrode, and the second bridge pattern are included in a second conductive layer on the first conductive layer. Each of the plurality of first patterns, the second electrode, and the second bridge pattern includes first mesh lines, and at least some of first end portions of the first mesh lines have a curvature.