Head-Up Display Guiding Lights Driver Attention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional head-up display devices struggle to effectively guide the driver's sight line from the combiner to the meter unit, especially during malfunctions, due to the distance and orthogonal positioning of these components, leading to potential missed notifications.
Innovation Solution
The implementation of a head-up display device with multiple light sources and guiding lights, where the optical path lengths are carefully managed to project guiding lights on a reflecting plate, allowing the driver's sight line to be sequentially guided from the combiner to the meter unit, ensuring visibility of warning messages and explanations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the combiner and meter unit are disposed at distant positions in orthogonal directions to avoid blocking the driver's field of view, then the driver's field of view is maintained, but the driver cannot easily notice the information displayed on the meter unit
Solution Approach 1:
The patent introduces guiding lights as intermediary elements that mediate between the combiner (primary display) and meter unit (secondary display). These guiding lights create visual pathways that attract the driver's attention and guide their sight line from the combiner to the meter unit, effectively bridging the spatial gap without requiring the displays to be closer together
Solution Approach 2:
The patent employs color changes in the guiding lights to attract the driver's attention. The guiding lights emit light in colors that stand out against the background, creating visual cues that naturally draw the driver's eye from the primary display area to the meter unit, thereby compensating for the spatial separation
2Loss of information
If multiple pieces of information are displayed on the combiner, then the driver receives comprehensive information, but the driver's attention is分散 and critical information may be missed
Solution Approach 1:
The patent segments information display across two separate units: the combiner for primary/urgent information and the meter unit for secondary/detailed information. This segmentation allows critical information to be prominently displayed on the combiner while less critical but still important information is placed on the meter unit, which the driver is guided to view sequentially
Solution Approach 2:
The patent uses periodic activation of guiding lights to rhythmically attract the driver's attention to the meter unit. The guiding lights are activated in a periodic manner, creating a visual rhythm that naturally draws the driver's eye back and forth between the combiner and meter unit, ensuring periodic checking of multiple information sources
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 ensures that the driver's attention is effectively directed from the primary display area to the meter unit, enhancing visibility and awareness of critical information during warnings or malfunctions without causing discomfort or distraction.
Implementation Method 1
the display light from the projector is reflected by the reflecting plate in a viewing direction to define a first display area on the reflecting plate
Implementation Method 2
the emitted light from the first light source is reflected by the reflecting plate in the viewing direction to display a first guiding light in a position adjacent to the first display area on the reflecting plate
Data Source
AI summary
On a combiner, a HUD display area is defined by display light from a projector, and guide lights are displayed. An optical path length from the combiner to a display-light projector, an optical path length from the combiner to a first light source, and an optical path length from the combiner to a second light source in a viewing direction are larger in this order.