Touch Coordinate Separation for Adjacent Multi-Touch Areas
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Solution Overview
Problem
Existing display devices struggle to accurately separate multi-touch inputs when touch areas are adjacent to each other, often recognizing them as a single touch, leading to errors.
Innovation Solution
A touch sensing apparatus and method that classifies valid touch groups into line units, sums touch sensing values for each line, determines a separation line, and separates the groups based on these sums to calculate accurate touch coordinates for each area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If touch areas are simply grouped together without separation, then processing is simplified and faster, but touch recognition accuracy deteriorates due to multi-touch being misidentified as single touch
Solution Approach 1:
The patent divides the touch sensing area into multiple line units (first line units, second line units, etc.) based on the distribution of valid touch nodes. By segmenting the touch group into discrete line units, the system can accurately distinguish between adjacent touch areas while maintaining efficient processing through structured organization of touch nodes.
2Measurement precision
If a separation line is determined by summing touch sensing values for each line unit, then separation accuracy is improved, but calculation time increases
Solution Approach 1:
The system pre-establishes line units based on the spatial distribution of valid touch nodes before performing separation calculations. This preliminary organization allows the subsequent summation of touch sensing values to be performed systematically and efficiently, reducing overall calculation time while maintaining high separation accuracy through the structured approach.
Data Source
AI summary
The present embodiment relates to a touch sensing apparatus and a touch sensing method and, more specifically, to a touch sensing apparatus and a touch sensing method, which rapidly and accurately separate a multi-touch in which touch areas are adjacent to each other.