Electronic Device Sensing Pattern Mesh Line Width Adjustment
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Solution Overview
Problem
Existing electronic devices face challenges in repairability and display quality, particularly in identifying areas requiring repair and minimizing color coordinate distortion, which affects manufacturing yield and display performance.
Innovation Solution
The electronic device incorporates a sensing pattern with mesh lines of varying shapes and widths, including a dummy pattern, to differentiate between areas that require repair and those that do not, and adjusts the distance and width of mesh portions relative to light emitting areas to prevent color distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the sensing pattern uses uniform mesh lines throughout the display area, then the manufacturing process is simple, but color coordinate distortion occurs near light emitting areas and repairability is reduced
Solution Approach 1:
The patent applies local quality by varying the mesh line width and spacing based on the local region's requirements. In non-light emitting areas, mesh lines are wider and closer together for better sensing. In light emitting areas, mesh lines are narrower and spaced further apart to minimize color coordinate distortion. This localized adaptation resolves the contradiction between manufacturing simplicity and display quality.
2Measurement precision
If the mesh lines are made wider and closer together to improve sensing accuracy, then sensing precision improves, but color coordinate distortion increases in light emitting areas
Solution Approach 1:
The patent implements local quality by creating different mesh line configurations in different regions. The first mesh lines in non-light emitting areas have greater width and smaller spacing for high sensing accuracy. The second mesh lines in light emitting areas have reduced width and increased spacing to prevent color distortion. This spatially varying design allows both sensing precision and display quality to be optimized in their respective regions.
3Device complexity
If repair areas are not clearly distinguished from non-repair areas, then the device structure is simpler, but repair efficiency decreases due to unnecessary repairs
Solution Approach 1:
The patent applies asymmetry by creating distinctly different mesh line patterns in repairable versus non-repairable areas. The first mesh lines in repairable areas have different width and spacing characteristics compared to the second mesh lines in non-repairable areas. This asymmetric design provides clear visual distinction for repair personnel to identify which areas require repair, improving repair efficiency without significantly increasing structural complexity.
Data Source
AI summary
An electronic device includes a base layer, a first sensing pattern disposed on the base layer and including a plurality of first mesh lines, a second sensing pattern disposed on the base layer and spaced apart from the first sensing pattern, a first sensing line electrically connected to the first sensing pattern, and a second sensing line electrically connected to the second sensing pattern. Each of the first mesh lines includes at least one of a first end and a second end having a shape different from a shape of the first end, the first end faces the second sensing pattern, and the second end is spaced apart from the second sensing pattern.