Vehicle Windshield Fluorescent Warning Display
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Solution Overview
Problem
Conventional warning systems for drivers, such as those displayed on indicators or windshields, are difficult to check without obstructing the view and can narrow the interior space of vehicles, making it challenging for drivers to recognize important alerts.
Innovation Solution
A window glass for vehicles that emits visible light through incident radiation of excitation light, using a multilayer structure with a transparent plate and a resin film containing a fluorescent material, allowing the end parts of the glass to emit light when approaching objects are detected, with adjustable emission intensity, area, and position based on distance and direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If warnings are displayed on conventional indicators or side mirrors, then warning information is provided to the driver, but the driver has difficulty checking the warnings without obstructing the view
Solution Approach 1:
The patent merges the warning display function with the windshield itself by incorporating a fluorescent layer into the windshield structure. This allows the windshield to serve dual purposes: maintaining its primary function as a transparent barrier while simultaneously acting as a display surface for warning messages, thereby eliminating the need for separate indicators that obstruct the driver's view
Solution Approach 2:
The patent transitions from traditional two-dimensional display surfaces (indicators, side mirrors) to utilizing the entire windshield surface as a display medium. By embedding fluorescent materials in the windshield, warning information can be displayed across multiple dimensions of the windshield, allowing drivers to perceive warnings from various angles without obstructing their forward view
2Ease of operation
If a head-up display is used to project warnings on the windshield, then warnings are displayed without obstructing the driver's view, but the device size is large and narrows the interior space
Solution Approach 1:
The patent combines the display function directly into the windshield structure by integrating fluorescent layers within the glass laminate. This eliminates the need for separate head-up display devices and their associated projection systems, thereby preserving interior space while maintaining the benefit of non-obstructive warning display
Solution Approach 2:
The windshield is designed to perform multiple functions simultaneously: it serves as both the primary transparent barrier and the display surface for warning messages. The fluorescent layer embedded in the windshield enables the glass itself to function as an active display medium, eliminating the need for additional dedicated display devices
3Illumination intensity
If the entire window glass is made fluorescent, then warning display is highly visible, but the cost and complexity of manufacturing increase
Solution Approach 1:
The patent applies fluorescent properties selectively to specific regions of the windshield rather than the entire surface. By concentrating the fluorescent layer in areas where warning messages are most likely to be displayed, the patent achieves high visibility for critical information while minimizing the amount of fluorescent material required, thereby reducing manufacturing cost and complexity
Solution Approach 2:
The windshield is divided into functional zones, with fluorescent layers applied only to specific segments or regions where warning display is needed. This segmented approach allows the patent to achieve effective warning visibility while avoiding the need to fluorescentize the entire windshield surface, thus simplifying manufacturing processes and reducing material costs
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 easy checking of warning displays without obstructing the driver's view or narrowing the vehicle's interior space, providing effective visual alerts for collision avoidance.
Implementation Method 1
a resin film comprising a resin and a fluorescent material emitting visible light through incident radiation of excitation light
Data Source
AI summary
A windshield (window glass for a vehicle) 10 is a window glass for a vehicle emitting visible light through incident radiation of excitation light that is irradiated from a light source, and an end part 10E of the window glass for a vehicle is capable of emitting light through irradiation with the excitation light. The present invention can provide window glass for a vehicle such as a car that enables a driver to easily check warning display without narrowing the interior space or obstructing the field of view in the vehicle.