Touch Electrode Layout for Display Visibility and Sensitivity
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Solution Overview
Problem
Existing electronic apparatuses face challenges in achieving improved touch sensitivity and visibility, particularly in devices with touch-based inputs.
Innovation Solution
The electronic apparatus incorporates a display panel with a specific electrode configuration, including first and second sensor patterns and connection patterns, along with light-emitting regions and a floating pattern, to enhance touch sensitivity and visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensor patterns and connection patterns are integrated into the display panel, then touch sensitivity is improved, but display characteristics are compromised
Solution Approach 1:
The patent divides the conductive layer into multiple separate patterns (first sensor patterns, second sensor patterns, first connection patterns, second connection patterns) arranged in specific configurations. This segmentation allows the sensor patterns to be distributed across the display panel while maintaining display quality in each local region, resolving the contradiction between overall touch sensitivity and local display characteristics.
Solution Approach 2:
The patent utilizes multi-layer stacking to arrange sensor patterns and connection patterns in different dimensions (first direction and second direction perpendicular to each other). This dimensional arrangement allows conductive pathways to be established without overlapping conductive layers, thereby maintaining both touch sensing capability and display visibility.
2Measurement precision
If conductive layers are arranged to maximize sensor coverage, then touch input sensing is improved, but noise generation increases
Solution Approach 1:
The patent introduces floating patterns as intermediary elements between the first and second conductive layers. These floating patterns act as mediators that maintain electrical isolation while enabling capacitive coupling, thereby allowing touch sensing to function without generating harmful noise through direct conductive overlap.
Solution Approach 2:
The patent replaces direct mechanical/electrical connection between conductive layers with a capacitive coupling mechanism through floating patterns. This substitution eliminates the need for direct conductive pathways that would generate noise, while still enabling electrical signal transmission for touch sensing.
3Manufacturing precision
If connection patterns are designed with multiple bar shapes, then manufacturing complexity increases, but manufacturing precision is improved
Solution Approach 1:
The connection patterns are segmented into multiple bar-shaped segments (first bar shape and second bar shape) arranged in sequences. This segmentation allows each bar to be manufactured and aligned independently, improving overall manufacturing precision through modular fabrication while the sequence arrangement maintains the necessary electrical connectivity.
Data Source
AI summary
Provided is an electronic apparatus including a display panel configured to provide an active region including a plurality of light-emitting regions, a first electrode including a plurality of first sensor patterns disposed in the active region and a plurality of first connection patterns respectively connected to the first sensor patterns, and a second electrode including a plurality of second sensor patterns insulated from the first electrode and disposed in the active region and a plurality of second connection patterns respectively connected to the second sensor patterns, wherein each of the first connection patterns includes a first pattern and a second pattern separated from each other in a first direction and respectively having a bar shape extending along a second direction crossing the first direction, and the light-emitting regions include at least one light-emitting pixel spaced apart from and disposed between the first pattern and the second pattern.