Modular Position Sensing System for Irregular Display Surfaces
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Solution Overview
Problem
Existing systems for adding touch functionality to large display panels and surfaces of various shapes and configurations are cumbersome and costly, lacking suitability for use with combined display modules or irregularly shaped surfaces.
Innovation Solution
A modular position sensing system comprising radiation sources and sensors, with a system controller and modules that can be wirelessly or physically coupled, allowing for accurate detection of radiation blocking objects' positions in a sensing region, adaptable to different surface configurations and shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If known systems are used for adding touch functionality to large display panels formed of combined display modules, then touch functionality is achieved, but the system becomes cumbersome and costly
Solution Approach 1:
The sensing system is divided into multiple independent sensing modules that can be individually attached to each display module. Each module contains its own radiation sources and sensors, allowing the system to be segmented and reconfigured to match different display panel configurations without requiring a complete system redesign.
Solution Approach 2:
The sensing modules are designed with universal attachment capabilities that work with various display module types and configurations. The same basic module design can be used across different display panels, reducing the need for custom-designed systems and lowering overall complexity and cost.
2Adaptability or versatility
If known systems are used for adding touch functionality to surfaces of various shapes and configurations, then touch functionality is achieved, but the system becomes costly
Solution Approach 1:
The system uses discrete, modular sensing units that can be individually positioned and attached to surfaces of any shape or configuration. This segmentation allows the same standardized components to be used across different surface geometries, reducing manufacturing costs by avoiding custom-designed systems for each application.
Solution Approach 2:
The system allows for flexible arrangement and positioning of radiation sources and sensors within each module, enabling adaptation to different surface shapes and configurations without changing the fundamental module design, thereby maintaining cost-effectiveness across various applications.
3Measurement precision
If radiation sources and sensors are distributed across multiple modules, then positioning accuracy is improved, but system complexity increases
Solution Approach 1:
Each sensing module is designed to be self-contained with integrated radiation sources and sensors that work autonomously within the module. The modules self-organize when attached to display modules, with each module independently detecting radiation blocking objects in its local area, reducing the need for complex centralized control and interconnection systems.
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 efficient and cost-effective touch functionality on various surfaces, including combined display panels and irregularly shaped surfaces, by accurately determining the position of objects like fingers or styluses using radiation sources and sensors, enhancing usability and reducing complexity.
Implementation Method 1
determining the position of a radiation blocking object in a sensing region
Data Source
AI summary
Various embodiments of a modular position sensing system and method for using the system are described. The system may be used to detect the position of one or more radiation blocking objects in a sensing region. The sensing region may overlie a surface such as a wall, whiteboard, display screen or a modular display screen. When used with a modular display screen, the system may include system modules dimensions to correspond to display modules used to form the modular display screen.