Capacitive Detection Regions With Mode-Specific Multi-Function Sensing
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Solution Overview
Problem
Existing detection devices, such as capacitive touch panels, face inefficiencies in processing multiple functions due to the need for time-division operations, leading to reduced detection sensitivity and increased costs from separate components for different detection tasks.
Innovation Solution
A detection device with a detection region divided into multiple functional regions, each with distinct detection modes, utilizing electrodes and a detector to efficiently process different functions simultaneously by performing signal and arithmetic processing specific to each region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If different components are provided for respective detection functions, then detection accuracy for each function is improved, but device complexity and cost increase
Solution Approach 1:
The patent implements a single detection device that performs multiple detection functions by dividing the detection region into multiple functional regions. Each functional region is configured to detect different objects (finger, stylus, gesture) using the same physical detection components, thereby avoiding the need for separate detection components for each function while maintaining detection accuracy.
Solution Approach 2:
The detection region is segmented into multiple functional regions, where each region is assigned to detect specific objects or gestures. This segmentation allows the system to optimize detection parameters for each region while using a unified detection hardware structure, resolving the contradiction between multi-functionality and device complexity.
2Reliability
If time-division operations are performed for different detection functions, then interference between detection operations is reduced, but detection operation time for each function decreases
Solution Approach 1:
The detection region is divided into multiple functional regions that can operate simultaneously without mutual interference. Each functional region is assigned specific detection tasks, allowing parallel processing of different detection functions while maintaining high detection sensitivity and operation time for each function.
3Device complexity
If a single detection device implements multiple functions, then device complexity is reduced, but detection sensitivity may decrease
Solution Approach 1:
Each functional region within the detection device is configured with specific detection parameters and characteristics optimized for its intended detection task. This local optimization ensures that each region maintains high detection sensitivity for its specific function while the overall device remains unified and simple in structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient implementation of various functions on a single touch device by optimizing detection sensitivity and reducing processing time, thereby enhancing overall performance and cost-effectiveness.
Implementation Method 1
capacitive touch panel
Data Source
AI summary
According to an aspect, a detection device includes a detection region having a plurality of electrodes, and a detector configured to detect an object to be detected in proximity to the detection region based on a detection value of each of the electrodes. The detection region is divided into a plurality of functional regions. The detector is configured such that the functional regions have different modes for detecting the object to be detected.