Stylus Grip Structure for Capacitive Touch and Wireless Charging
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Solution Overview
Problem
Conventional stylus grips interfere with capacitive touch interaction and wireless charging, forcing users to choose between comfort and functionality.
Innovation Solution
A stylus grip with an open truncated side edge and optional semi-rigid inner sleeve that allows direct capacitive touch and wireless charging without removal, featuring ergonomic design for comfort and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a full-coverage stylus grip is used, then grip comfort and handling are improved, but capacitive touch interaction is blocked
Solution Approach 1:
The grip is designed with a truncated side edge that segments the coverage area, leaving an exposed portion of the stylus accessible for capacitive touch interaction while maintaining full coverage for grip comfort in other areas
Solution Approach 2:
Different portions of the grip have different properties: the main body provides full coverage for comfort, while the truncated edge portion provides local exposure for capacitive touch functionality
2Ease of operation
If a full-coverage stylus grip is used, then grip comfort is improved, but wireless charging is obstructed
Solution Approach 1:
The grip structure is segmented with an open truncated edge that creates a gap allowing wireless charging signals to penetrate through to the stylus while maintaining overall grip coverage
Solution Approach 2:
The grip has localized openings at the truncated edge that permit wireless charging functionality while the rest of the grip maintains full coverage for comfort
3Ease of operation
If a resilient grip material is used, then user comfort is improved, but secure attachment to stylus is reduced
Solution Approach 1:
The grip combines resilient material for comfort with a semi-rigid inner C-shaped sleeve for secure attachment, creating a composite structure that provides both comfort and strength
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 comfortable and secure grip with capacitive touch interaction and wireless charging, reducing hand fatigue and providing stability during extended use.
Implementation Method 1
This sleeve can flex outwardly to receive the stylus and hold it in place through friction
Implementation Method 2
Many modern styluses are designed to be recharged using inductive charging methods, which require close proximity between the stylus and the charging device
Implementation Method 3
Capacitive touch technology relies on the electrical properties of the human body to function. When a user touches a capacitive stylus, it completes an electrical circuit
Data Source
AI summary
A grip for a cylindrical capacitive touch stylus comprises an elongated grip member made of a resilient material. The grip member has a proximal end, a distal end, an outer surface, and an inner surface defining a central bore. An open truncated side edge extends between the proximal and distal ends, laterally exposing the central bore. This design allows a user to contact the stylus through the truncated side edge when inserted, enabling capacitive touch interaction. The grip may have a narrower mid-point diameter for ergonomic comfort and differently shaped ends for rotation and stability. An optional semi-rigid, inner C-shaped sleeve can be fixed to the inner surface to securely hold the stylus. The invention overcomes limitations of prior art grips by allowing direct stylus contact for capacitive touch functionality and permitting wireless charging without grip removal.