Two-Layer Interactive Textiles With Conductive Thread Capacitive Sensors
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Solution Overview
Problem
Producing touch sensors that are light, flexible, and adaptable is complicated and expensive, as conventional touch pads are non-flexible and costly to produce and integrate into objects.
Innovation Solution
The development of two-layer interactive textiles with a grid of conductive thread woven into the fabric to form a capacitive touch sensor, allowing for touch-input detection and integration into flexible objects like clothing and handbags, coupled with a gesture manager for controlling remote devices wirelessly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional touch pads are used, then touch sensor functionality is achieved, but flexibility and ease of integration into objects deteriorates
Solution Approach 1:
The patent replaces expensive conventional touch pads with a cost-effective alternative using conductive thread woven into fabric. The conductive thread forms capacitive touch sensor elements that can be integrated into textiles at low cost, making touch functionality accessible in flexible objects like clothing and accessories without the high manufacturing costs of traditional rigid touch pads
Solution Approach 2:
The patent implements touch sensor functionality using thin, flexible conductive thread woven into fabric layers. This textile-based approach provides the necessary flexibility to be integrated into soft objects while maintaining touch sensing capability, replacing rigid conventional touch pad structures with flexible textile construction
2Adaptability or versatility
If conventional touch pads are used, then touch sensor functionality is achieved, but integration into flexible objects deteriorates
Solution Approach 1:
The patent merges the touch sensor functionality directly into the textile fabric by weaving conductive thread into the fabric structure. This integration of sensing elements within the textile itself eliminates the need for separate rigid touch pad components and simplifies integration into flexible objects, as the textile becomes the sensor substrate
Solution Approach 2:
The patent creates a universal textile-based touch sensor platform that can be integrated into various flexible objects such as clothing, handbags, and fabric casings. The conductive thread woven fabric serves multiple functions as both structural textile and capacitive touch sensor, enabling versatile application across different flexible objects without requiring object-specific custom designs
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 flexible and cost-effective integration of touch sensors into various objects, allowing users to control devices through gestures, enhancing usability and adaptability without altering the object's flexibility.
Implementation Method 1
conductive threads from each layer form a capacitive touch sensor that is configured to detect touch-input
Data Source
AI summary
This document describes two-layer interactive textiles. In one or more implementations, the interactive textile includes a top textile layer and a bottom textile layer. Conductive threads are woven into the top textile layer and the bottom textile layer. When the top textile layer is combined with the bottom textile layer, the conductive threads from each layer form a capacitive touch sensor that is configured to detect touch-input. The bottom textile layer is not visible and couples the capacitive through sensor to electronic components, such as a controller, a wireless interface, an output device (e.g., an LED, a display, or speaker), and so forth.