LEDoS Projection System for Traffic Light Multi-Functionality
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Solution Overview
Problem
Current traffic light systems, particularly those using LEDs, face challenges in efficiency, sustainability, and multi-functionality, with high energy consumption and e-waste generation, necessitating advanced electronic systems that reduce raw material usage, eliminate redundant installations, and optimize energy reuse for ecosystem vital functions.
Innovation Solution
The implementation of an LEDoS (Light Emitting Diode on Silicone) projection system, which includes a controller for selectively activating LED pixels to form images, utilizing a combination of LEDoS chips, optical projection components, and memory/storage devices to project images efficiently, potentially integrated into intelligent traffic lights, consumer electronics, and other devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If traditional LED traffic light systems are used, then basic lighting function is provided, but energy consumption is high and multi-functionality is limited
Solution Approach 1:
The patent integrates multiple functions into a single LEDoS traffic light system including image projection, information display, and traditional traffic signaling. The LEDoS array can selectively activate different LED elements to perform various functions: traffic light signals, projected images on surfaces, and information text display, eliminating the need for separate installation of projection devices and information displays.
Solution Approach 2:
The patent combines traditional LED traffic light functionality with image projection capabilities by integrating a projection lens system and control circuitry into the existing traffic light housing. The LEDoS array serves both as traffic signal lights and as a source for projected images, merging multiple systems into one unified structure.
2Adaptability or versatility
If separate projection systems are installed for image display, then image projection capability is added, but device complexity and raw material usage increase
Solution Approach 1:
The LEDoS array serves dual purposes: as traffic signal lights and as an image source for projection. By using the same LED elements for both functions, the system avoids the complexity of installing separate projection systems while adding image projection capability.
Solution Approach 2:
The patent merges the traffic light LED array with the image projection source by using the LEDoS array itself as the light source for projection. The projection lens system is integrated into the existing traffic light structure, combining two functions into one system rather than installing separate devices.
3Use of energy by moving object
If LEDoS chips are used for image projection, then energy efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The patent uses standard LEDoS chip technology that is already manufactured using established semiconductor fabrication processes. The same chip design and manufacturing techniques used for conventional LED displays are applied here, avoiding the need for entirely new manufacturing processes while achieving the desired energy efficiency.
Solution Approach 2:
The patent adjusts operational parameters of existing LEDoS chips to optimize energy efficiency for projection purposes. By controlling the activation patterns, brightness levels, and timing of individual LED elements, the system achieves high energy efficiency without requiring changes to the fundamental chip manufacturing process.
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
This solution enhances energy efficiency, reduces e-waste, and enables multi-functional systems with reduced raw material usage, optimizing energy reuse and improving the sustainability of traffic light systems while providing efficient image projection capabilities.
Implementation Method 1
LEDoS projection system, which includes a controller for selectively activating LED pixels to form images
Implementation Method 2
utilizing a combination of LEDoS chips, optical projection components
Implementation Method 3
optical projection components, and memory/storage devices to project images efficiently
Implementation Method 4
optical projection components
Data Source
AI summary
Image projection utilizing light-emitting diodes on a silicon (LEDoS) substrate is described herein. LEDoS devices selectively activate LED pixels to produce light. Light can excite color conversion materials of the LEDoS devices to form color images. Images can be projected onto a projection surface.