Electronic Device Input Sensing Layout for Complex Active Areas
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Solution Overview
Problem
Existing electronic devices with touch screens face challenges in maintaining sensing reliability, particularly when the active areas have non-standard or complex shapes, leading to reduced accuracy and effectiveness in detecting user inputs.
Innovation Solution
The electronic device incorporates an input sensing part with a structured layout comprising first, second, and third areas, each divided into nodes with specific connection and sensing patterns, ensuring uniform distribution and enhanced sensitivity across variously shaped active areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the active area has a non-standard or complex shape, then the device can have various shapes and forms, but the sensing reliability and accuracy are reduced
Solution Approach 1:
The input sensing part is divided into multiple nodes (first nodes, second nodes, third nodes) distributed across different areas (first area, second area, third area). Each node contains sensing patterns and connection patterns that are segmented to cover specific regions. This segmentation allows the system to maintain uniform sensing distribution even when the overall active area has complex or non-standard shapes, thereby preserving sensing reliability while enabling shape variety.
Solution Approach 2:
Different nodes are configured with different shapes and sizes according to their local positions within the active area. The first nodes, second nodes, and third nodes have differentiated geometries adapted to their specific spatial requirements. This local quality adjustment ensures that each region contributes optimally to the overall sensing performance, allowing complex active area shapes to maintain high sensing accuracy through locally optimized node configurations.
2Device complexity
If nodes have uniform shapes and sizes, then the structure is simple, but sensing accuracy on variously shaped active areas is reduced
Solution Approach 1:
The patent applies local quality by configuring nodes with different shapes and sizes according to their specific positions and functional requirements within the active area. First nodes, second nodes, and third nodes are differentiated in their geometrical properties to optimize sensing accuracy for their respective regions. This localized differentiation enhances overall sensing precision while maintaining manageable structural complexity through systematic node design.
Solution Approach 2:
The patent employs asymmetry by intentionally designing nodes with non-uniform shapes and configurations. Rather than using identical symmetric nodes throughout, the first, second, and third nodes exhibit asymmetric geometries tailored to their specific spatial contexts. This asymmetric approach enables the sensing system to accurately capture inputs across variously shaped active areas while avoiding the limitations of uniform symmetric structures.
Data Source
AI summary
Provided is an electronic device. The electronic device includes a display panel and an input sensing part disposed on the display panel and including a first area, a second area configured to surround the first area, and a third area configured to surround the second area. The input sensing part includes first to third nodes, which are disposed on the first to third area, respectively, and each of the first to third nodes includes a first connection pattern and a second sensing pattern including a third pattern and a fourth pattern spaced apart from each other in a second direction. At least a portion of the second nodes has a shape different from that of each of the first nodes, and at least portion of the third nodes a shape different from that of each of the first nodes.