Transparent Windscreen HUD Using Light-Emitting Particles

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing head-up displays (HUDs) for vehicles often require coatings on windshields that reduce transparency, limiting their application to specific regions and hindering the presentation of critical information to drivers in a comprehensive and transparent manner.

Innovation Solution

A substantially transparent windscreen HUD system utilizing light-emitting particles or microstructures that allow for luminescent displays while maintaining visibility, enabled by monitoring and analyzing traffic infrastructure indications and projecting relevant graphics directly onto the windscreen.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If light is projected directly upon the windscreen to create a head-up display, then information can be displayed to the driver, but the transparency of the windscreen is significantly decreased

Engineering Contradiction:

Improveinformation display capabilityVSAvoidwindscreen transparency

Core Design Contradiction:

Loss of informationVSIllumination intensity

Solution Approach 1:

The windscreen is divided into a display region and a transparent region. The display region contains the HUD projection area with light-emitting particles, while the transparent region maintains full visibility. This spatial segmentation allows the windscreen to simultaneously provide both information display and optical transparency functions without compromising either.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If a coating is applied to the windscreen to enable light projection, then head-up display functionality is achieved, but the coating restricts the display to limited regions only

Engineering Contradiction:

ImproveHUD functionalityVSAvoiddisplay region area

Core Design Contradiction:

Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

Light-emitting particles are applied selectively to specific regions of the windscreen where HUD display is needed, while leaving other regions completely transparent. This localized application of functional material enables the windscreen to have different optical properties in different areas, providing HUD functionality exactly where required without restricting the overall display area.

Inventive Principle:

Principle #3Local quality

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 the display of critical information on the windscreen without compromising transparency, providing drivers with a comprehensive and unobstructed view of the road while presenting vital data such as navigation, safety alerts, and environmental information.

Implementation Method 1

one of light emitting particles or microstructures over a predefined region of the windscreen permitting luminescent display while permitting vision through the windscreen

Methodology Applied

Scientific EffectLuminescence: Luminescence

Data Source

PatentUS8395529B2Traffic infrastructure indicator on head-up display

Publication Date: 2013.03.12 GM GLOBAL TECHNOLOGY OPERATIONS LLC

AI summary

A substantially transparent windscreen head up display includes one of light emitting particles or microstructures over a predefined region of the windscreen permitting luminescent display while permitting vision through the windscreen. A method to display a graphic based upon a traffic infrastructure indication upon a substantially transparent windscreen head up display of a vehicle includes monitoring the traffic infrastructure indication, analyzing the traffic infrastructure indication, and displaying the graphic upon the transparent windscreen head up display based upon analyzing the traffic infrastructure indication.