Heads-Up Display Visual Excitability Modulation for Driver Distraction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional information display systems in vehicles cause inconvenience and annoyance to drivers due to simple controlling processes, and they struggle to effectively display navigation information without overwhelming the driver with excessive data.
Innovation Solution
A heads-up display (HUD) system using a laser scanning technology that projects navigation information, such as the direction, name, and distance to the next corner, onto the windshield, with adjustable visual excitability and characteristics like brightness, color, and position to minimize driver distraction and annoyance, while ensuring the information is easily recognizable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If navigation information is continuously displayed with high visual excitability, then driver recognition of information is improved, but driver annoyance and distraction increase
Solution Approach 1:
The HUD system employs periodic action by alternating between high-visual-excitability display (when corner information is updated) and low-visual-excitability display (during steady-state navigation). This periodic modulation ensures drivers notice updated information while reducing continuous visual stimulation that causes annoyance and distraction.
Solution Approach 2:
The system dynamically adjusts visual excitability characteristics based on navigation state. When corner information is updated, the display transitions to high visual excitability for prominent recognition; when stable, it transitions to low visual excitability to minimize distraction. This dynamic adaptation resolves the contradiction between recognition and annoyance.
2Object-affected harmful factors
If navigation information is displayed with low visual excitability, then driver annoyance is reduced, but information recognition becomes difficult
Solution Approach 1:
The system uses periodic action to switch between display states. During corner information updates, high visual excitability is activated for clear recognition; during stable navigation phases, low visual excitability is used to reduce annoyance. This temporal separation ensures both recognition effectiveness and driver comfort are achieved at different times.
Solution Approach 2:
The system applies local quality by making visual excitability characteristics dependent on the specific navigation context. Updated corner information receives high visual excitability treatment for prominence, while stable navigation information uses low visual excitability for comfort. This contextual differentiation resolves the recognition-annoyance contradiction.
3Loss of information
If multiple information items are displayed simultaneously, then comprehensive navigation information is provided, but driver cognitive load increases
Solution Approach 1:
The system extracts and prioritizes only the most critical navigation information (corner direction, name, and distance) for display in the HUD. By selectively extracting essential information rather than displaying all available navigation data, the system provides comprehensive guidance while minimizing cognitive load from extraneous information.
Solution Approach 2:
The navigation information is segmented into distinct, organized elements (corner direction, corner name, distance to corner) that are displayed in a structured format. This segmentation helps drivers process information systematically rather than overwhelming them with undifferentiated data, reducing cognitive load while maintaining completeness.
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
The HUD system reduces driver annoyance and maintains recognition of navigation information by dynamically altering the display's visual excitability and characteristics, ensuring the information is highlighted only when necessary, thus enhancing safety and reducing stress during navigation.
Implementation Method 1
A heads-up display (HUD) system using a laser scanning technology that projects navigation information
Implementation Method 2
projects navigation information, such as the direction, name, and distance to the next corner, onto the windshield
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
An information display device (100) and a vehicle. The information display device (100) displays information including information display related to a route along which a vehicle is to travel as a virtual image in a display area. The information display device (100) includes a controller (600, 902) configured to alter properties and characteristics of the information display being displayed in the display area. The controller (600, 902) alters the properties and characteristics of the information display at a timing determined in advance, and the controller (600, 902) alters the properties and characteristics of the information display at a timing when information about the route is input from a device (200) in which the route is set and position information of the vehicle is obtained. Alternatively, The controller (600, 902) switches between showing and hiding the information display. The vehicle includes the information display device (100) and a vehicle on which the information display device (100) is mounted.