Photovoltaic Sensor Integration in Printed Graphics
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Solution Overview
Problem
Digital displays in retail and public spaces are costly and require significant operational support, while printed graphics lack interactivity, leading to a non-engaging experience.
Innovation Solution
Integration of a low-power photovoltaic sensor element with associated optics within printed graphics to detect objects and communicate with a processor, triggering interactive responses such as LED lighting or other activities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If digital displays are used to provide changing images and video, then interactivity and engagement are improved, but cost and operational complexity increase
Solution Approach 1:
The patent combines printed graphics with sensor elements and electronics to create an interactive hybrid system. The sensor card integrates photodetectors, processing circuitry, and communication modules directly into the printed graphic substrate, merging the simplicity of print with the interactivity of digital systems.
Solution Approach 2:
The sensor card operates autonomously by detecting objects in its field of view and automatically triggering responses in the printed graphic without requiring external control systems. The integrated processor analyzes sensor data and activates actuators directly, eliminating the need for complex operational support infrastructure.
2Device complexity
If printed graphics are used to reduce cost and simplify operation, then operational support is reduced, but interactivity is lost
Solution Approach 1:
The sensor card acts as an intermediary between the physical environment and the printed graphic. It detects objects through photodetectors, processes the information, and triggers appropriate responses in the printed graphic, thereby introducing interactivity into an otherwise static medium.
Solution Approach 2:
The printed graphic system performs multiple functions: it serves as both the display medium and the interactive interface. The sensor card enables the printed graphic to detect, process, and respond to environmental stimuli, making it a multi-functional system that combines advertising, sensing, and actuation.
3Adaptability or versatility
If sensor elements are added to printed graphics to enable object detection, then interactivity is improved, but device complexity increases
Solution Approach 1:
The sensor elements, processing circuitry, and communication modules are nested within the printed graphic substrate itself. The sensor card is integrated into the graphic layer, with components arranged in a compact, hierarchical structure that minimizes overall system complexity.
Solution Approach 2:
The sensor card utilizes thin-film photodetectors and flexible circuitry that can be integrated directly into the printed graphic substrate. This approach maintains the flexibility and thinness of the original printed graphic while adding sensing capabilities without significant bulk or rigidity.
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
Enhances the engagement of passersby with interactive elements, providing a more impactful experience while maintaining the cost-effectiveness and simplicity of printed graphics.
Implementation Method 1
A photovoltaic sensor element with associated optics provides for sensing of objects within a field-of-view
Data Source
AI summary
A sensor comprising a thin film photovoltaic pixel is fitted with optics to provide a field-of-view for the sensing of persons, or other objects, entering or exiting said field-of-view. When a person enters the field-of-view, a processor may sense such entry, then provide signals to other electronic apparatus indicative of such an event.