Capacitive Electrode Switching for Touch and Antenna Integration
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Solution Overview
Problem
Conventional capacitive touch control panels lack the ability to expand their functionality beyond basic touch control, failing to incorporate additional features such as antenna and charging functions.
Innovation Solution
The capacitive touch control device incorporates switching assemblies with switches that can toggle between touch mode and antenna mode, allowing the capacitive electrode layer to provide capacitive touch, antenna, charging, or charged functions through a network of transmitting wires and circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the capacitive touch control panel structure is kept conventional for maintaining basic touch control function, then the touch control function is preserved, but the ability to expand with additional functions (antenna, charging) is limited
Solution Approach 1:
The capacitive electrode layer is designed to perform multiple functions: it can operate as a touch control panel in touch mode, and as an antenna in antenna mode. The switching assemblies enable the same electrode layer to be electrically coupled to different circuits (touch drive circuit or antenna circuit) based on the desired function, thus achieving multi-functionality without adding separate structural components
Solution Approach 2:
The patent combines the touch control function and antenna function into a single capacitive electrode layer. By merging these functions into one structure and using switching assemblies to control electrical coupling to different circuits, the patent reduces overall device complexity while maintaining versatility
2Adaptability or versatility
If switching assemblies are added to enable antenna and charging functions, then functionality is expanded, but the device structure becomes more complex
Solution Approach 1:
The switching assemblies provide dynamic reconfiguration of the electrode layer's electrical connections. The switches can dynamically change the electrical coupling state between the electrode layer and different circuits (touch drive circuit or antenna circuit), allowing the system to adapt its functionality in real-time without permanent structural changes
Solution Approach 2:
The control system is segmented into multiple switching assemblies, with each assembly independently controlling the electrical coupling state for specific electrode groups. This segmentation allows flexible and independent control of different functional modes without requiring a completely redesigned circuit architecture
Data Source
AI summary
A capacitive touch control device includes a plurality of switching assemblies for being respectively connected to transmitting wires that connect a capacitive electrode layer. Each of the switching assemblies includes a switch, a touch drive circuit, and an antenna circuit, the latter two of which are installed to the switch. Each of the switches is provided for being connected to the corresponding transmitting wire, and is configured to be in a touch mode by electrically coupling to the touch drive circuit or in an antenna mode by electrically coupling to the antenna circuit. When the switches are in the touch mode, the switching assemblies enable the capacitive electrode layer to provide a capacitive touch function. When at least one of the switches is in the antenna mode, the corresponding switching assembly enables the capacitive electrode layer to provide an antenna function.