Windscreen Optical Display Layout Without Separate Light Guides
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Solution Overview
Problem
Modern motor vehicles face installation space conflicts between head-up displays and vents due to the increasing number of visual information displays using light in the vehicle cockpit, necessitating a space-optimized solution for windscreen information display.
Innovation Solution
A lighting device is integrated into the windscreen with optically functional areas within the inner and outer windows, allowing light to be coupled and scattered for three-dimensional effects, eliminating the need for a separate light guide and optimizing installation space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate light guide is installed in the windscreen for visual display, then the visual information display function is achieved, but the installation space conflicts with vents and increases device complexity
Solution Approach 1:
The patent merges the light guide function directly into the windscreen structure by creating optically functional areas within the inner and/or outer window layers. The windscreen itself becomes the light guide through integrated optical elements (diffusers, reflectors, guides) embedded in the glass layers, eliminating the need for separate light guide components and resolving installation space conflicts with vents
Solution Approach 2:
The windscreen is designed to serve multiple functions simultaneously: it maintains its primary function as a protective window while integrating visual information display capabilities through optically functional areas. The same windscreen structure that provides protection also guides and displays light for information presentation to the driver
2Adaptability or versatility
If a separate light guide is installed in the windscreen, then the visual display is achieved, but the manufacturing process becomes more complex and time-consuming
Solution Approach 1:
The optical elements (diffusers, reflectors, light guides) are pre-integrated into the windscreen layers during the windscreen manufacturing process itself. The inner and/or outer windows are produced with embedded optical structures, so that when the windscreen is installed in the vehicle, the visual display function is already operational without requiring separate assembly steps for light guide installation
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 provides a space-efficient and manufacturing-friendly visual display system that offers secure attachment, precise light scattering for three-dimensional visuals, and various information displays without requiring additional installation space or separate light guides.
Implementation Method 1
reflection properties of the light coupled into the windscreen are changed in the optically functional area with respect to other areas of the inner window and/or the outer window
Implementation Method 2
light scattering contours in the at least one optically functional area. The light scattering contours can be configured to scatter the light, such that three-dimensional bodies and/or shapes can be depicted
Implementation Method 3
the light emitted by the lighting device during operation can be coupled into the windscreen at an end face
Data Source
AI summary
An arrangement (1) is provided for a visual display of information in the area of a windscreen (2) of a motor vehicle. The windscreen (2) has at least one inner window (20) and one outer window (21). A lighting device (4) is attached to the windscreen (2), and light (8) emitted by the lighting device (4) can be coupled into the windscreen (2) at an end face. At least one optically functional area (200, 210) is configured within the inner window (20) and/or the outer window (21). The at least one optically functional area (200, 210) changes reflection properties of the light (8) coupled into the windscreen (2) as compared to other areas (201, 202, 211, 212) of the inner window (20) and/or the outer window (21).