HUD Sight Line Guide for Meter Unit Attention
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Solution Overview
Problem
Conventional head-up display devices struggle to effectively guide the driver's sight line to additional information displayed on a meter unit, as these displays are often spaced apart, leading to potential missed notifications during critical events like vehicle malfunctions.
Innovation Solution
A display unit with a controller and light sources that project guide lights between the head-up display area and the meter unit's display areas, allowing the controller to sequentially illuminate guide lights to direct the driver's attention from the head-up display to relevant information on the meter unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the combiner and meter unit are spaced apart in vertical and horizontal directions to prevent field of view interruption, then the driver's forward view is maintained, but the driver fails to notice the meter unit displaying fault information
Solution Approach 1:
The patent introduces a sight line guide as an intermediary element between the combiner and the meter unit. This guide visually directs the driver's attention from the combiner to the meter unit, enabling the driver to notice fault information displayed on the meter unit without requiring the displays to be closer together, thus maintaining both field of view integrity and information notification effectiveness
Solution Approach 2:
The sight line guide utilizes color changes or light emission to attract the driver's attention. By making the guide visually prominent through color or illumination, it effectively directs the driver's sight line to the meter unit without interrupting the forward view through the combiner
2Adaptability or versatility
If the head-up display and meter unit are positioned at different depths in the viewing direction, then the driver can recognize the virtual image superimposed on the forward view, but the driver fails to notice the meter unit displaying detailed fault information
Solution Approach 1:
The sight line guide acts as a mediator that bridges the depth separation between the combiner and meter unit. It provides a visual pathway that connects these two displays at different depths, guiding the driver's attention from the head-up display to the meter unit and ensuring that detailed fault information is not missed despite the depth difference
3Ease of operation
If only a warning display with a symbol is shown on the combiner to prevent driver distraction, then the driver's attention is maintained on the road, but the detailed fault information is not provided
Solution Approach 1:
The patent segments the information display into two parts: a warning symbol displayed on the combiner for immediate attention, and detailed fault information displayed on the meter unit. The sight line guide connects these two segments, allowing the driver to first notice the warning on the combiner and then be guided to the detailed information on the meter unit, thus providing both safety and information completeness
Solution Approach 2:
The patent utilizes the spatial dimension by positioning the detailed fault information on the meter unit at a different location from the combiner. The sight line guide exploits this spatial separation by creating a visual pathway that directs attention from the combiner to the meter unit, effectively using dimensional space to accommodate both warning and detailed information displays
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
Facilitates the driver's visual recognition of critical information on the meter unit by sequentially guiding their sight line from the head-up display to the relevant display areas, ensuring timely notification and awareness of important alerts or warnings.
Implementation Method 1
a first light source connected to the controller and configured to display a first guide light between the first display area and the second display area in a viewing direction of the first display area and the second display area
Implementation Method 2
a second light source connected to the controller and configured to display a second guide light between the first guide light and the second display area in the viewing direction
Data Source
AI summary
When a signal indicating that an event involving a need to guide a sight line from an HUD display area to a second display area occurs, a first guide light is displayed, and then a second guide light is displayed.