Contoured Thumb Touch Sensor for Uniform Contact
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Modern computing devices face challenges in user interaction due to the lack of input mechanisms designed to accommodate the human hand, leading to difficulty in maintaining uniform contact with planar touch-sensitive surfaces, resulting in inefficient user experience and productivity.
Innovation Solution
A contoured or saddle-shaped touch-sensitive surface is introduced, designed to accommodate the thumb's natural motion, with a concave shape from top to bottom and convex shape from front to back, allowing comfortable and intuitive operation, and capable of detecting movement and pressure inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a planar touch-sensitive surface is used, then the device structure is simple, but the user difficulty in maintaining uniform contact increases
Solution Approach 1:
The touch sensor employs a contoured surface with concave and convex curvatures that match the anatomical shape of the thumb. The concave curvature in the vertical direction accommodates the thumb pad, while the convex curvature in the horizontal direction matches the thumb's side-to-side profile, enabling uniform contact pressure distribution across the sensor surface.
2Adaptability or versatility
If multiple input mechanisms are included, then functional versatility is improved, but system complexity increases
Solution Approach 1:
The contoured touch sensor serves multiple functions within a single integrated component: it detects tap inputs, swipe gestures, rolling motions, and pressure levels. The curved surface geometry enables diverse interaction modes without requiring separate physical buttons, switches, or other input mechanisms, thereby reducing overall device complexity while maintaining versatility.
3Ease of operation
If a contoured touch sensor is implemented, then ergonomic functionality is improved, but manufacturing complexity increases
Solution Approach 1:
The patent achieves the contoured geometry by modifying the surface topology parameters of the touch sensor during fabrication. By controlling the curvature radii and depth of the concave-convex profile during the sensor manufacturing process, the desired ergonomic shape is obtained while using standard thin-film deposition and patterning techniques, thereby limiting the increase in manufacturing complexity.
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
The contoured sensor enables natural and uniform contact pressure, improving user interaction and accuracy, reducing spurious inputs and enhancing ergonomic functionality and productivity in mobile computing devices.
Implementation Method 1
a touch-sensitive surface configured on a side of the apparatus that is operative to detect movement input
Data Source
AI summary
Embodiments of an apparatus, system and method are described for implementing a contoured thumb touch sensor. An apparatus may comprise, for example, an input device configured on a side of an apparatus, the input device having a concave shape in a direction from a top of the apparatus to a bottom of the apparatus, the input device comprising a touch-sensitive surface operative to detect movement input. Other embodiments are described and claimed.