Bulk Resistive Gloves for Capacitive Touchscreen Operation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Capacitive touchscreen devices are not compatible with typical gloves due to the electrical barrier they create, requiring users to remove their gloves in cold environments or when suffering from conditions like Raynaud's disease, which limits interaction with these devices.
Innovation Solution
Bulk resistive gloves made from materials like 60% polyester, 29% silver nylon, and 7% spandex, which provide consistent low resistance throughout, allowing bioelectricity to flow from the body to the touchscreen, enabling users to interact with capacitive touchscreens while wearing gloves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If ordinary gloves are worn to protect hands in cold environments, then hand warmth is maintained, but capacitive touchscreen operation becomes impossible due to electrical insulation blocking bioelectricity
Solution Approach 1:
The glove incorporates conductive elements (silver threads, conductive foam, or conductive coating) specifically in the finger regions that contact the touchscreen, while the rest of the glove maintains insulating properties for warmth. This localized conductivity allows touchscreen operation without compromising overall hand warmth.
Solution Approach 2:
The glove combines insulating materials (for thermal protection) with conductive materials (silver threads, conductive foam, or conductive coating) to create a composite structure that simultaneously provides warmth and electrical conductivity for touchscreen interaction.
2Loss of energy
If highly resistive materials are used in gloves for thermal insulation, then hand warmth is improved, but electrical conductivity to the touchscreen is blocked
Solution Approach 1:
The glove uses highly resistive insulating materials for the bulk structure to retain thermal energy, while incorporating localized conductive pathways (silver threads in fingers, conductive foam at contact points, or conductive coating on finger surfaces) to ensure reliable electrical connection to the touchscreen.
Solution Approach 2:
The glove employs a composite structure combining thermal insulating materials with conductive materials, creating regions of high resistance for heat retention and localized low-resistance pathways for reliable electrical connection to the touchscreen.
3Ease of operation
If conductive material is added to gloves for touchscreen compatibility, then touchscreen operation is enabled, but the glove structure and comfort are compromised
Solution Approach 1:
The glove uses thin conductive coatings or flexible conductive layers applied to the finger surfaces, maintaining the glove's flexibility and comfort while enabling touchscreen operation. The conductive elements are integrated into the fabric structure rather than added as separate rigid components.
Solution Approach 2:
Conductive material is incorporated only in the finger regions necessary for touchscreen interaction, using techniques such as knitting conductive threads into the fabric, applying conductive coating to finger surfaces, or placing conductive foam at contact points, thereby minimizing structural complexity while enabling touchscreen operation.
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 users to operate capacitive touchscreen devices with the same functionality as bare hands, including multi-touch gestures, even in cold environments or with conditions that typically hinder electrodermal response, and is suitable for individuals with prosthetic hands.
Implementation Method 1
Bulk resistive gloves made from materials like 60% polyester, 29% silver nylon, and 7% spandex, which provide consistent low resistance throughout, allowing bioelectricity to flow from the body to the touchscreen
Data Source
AI summary
Gloves are disclosed that are worn by a user while manipulating an electronic device equipped with a capacitive touchscreen. The gloves allow the wearer to manipulate the capacitive touchscreen device without removing the gloves, which is very advantageous in cold environments. The gloves enable full hand functionality allowing the user to type, swipe, squeeze, pinch, and select on the capacitive touchscreen device as if they were using their bare hand. The gloves are made with a low resistant yarn knit or woven into a comfortable fabric that connects the body's bioelectricity through the glove to a capacitive touchscreen. Ordinary gloves will not work with a capacitive touchscreen. In the manufacturing process, the low resistant yarn is first twisted around at least one other yarn having a specific performance property, such as thermal resistance. This twisting assists in uniform knitting and improves the consistent resistivity of the finished glove.