Head-Up Display Intersection Visualization
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Solution Overview
Problem
Current head-up display systems for vehicles are insufficient in presenting the shape of an intersection and necessary driving assistance information, requiring mode switching and limited in the amount of information they can display, which burdens drivers and restricts the presentation of inter-vehicle and inter-intersection distances along with directional arrows.
Innovation Solution
A display unit that includes a head-up display and a control system to project information such as inter-vehicle distance, inter-intersection distance, and intersection images onto the windshield, using bar graphs and arrow representations that fit within the limited irradiation range, allowing drivers to visualize the intersection shape and necessary information without mode switching, with the intersection image displayed as a pattern having depth to reduce the irradiation area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a head-up display presents detailed navigation information like car navigation systems, then the driver can know the shape of the intersection, but the limited hardware structure prevents presenting sufficient information
Solution Approach 1:
The navigation information is segmented into essential elements only: intersection shape pattern, directional arrow, inter-vehicle distance, and inter-intersection distance. This segmentation allows the head-up display to present sufficient driving assistance information within its limited hardware capabilities without attempting to display all navigation details.
Solution Approach 2:
The invention extracts only the most critical navigation elements needed for safe driving at intersections: the shape of the intersection, the correct turning direction, distance to the intersection, and distance to other vehicles. Non-essential navigation information is excluded, allowing effective presentation on the head-up display.
2Adaptability or versatility
If the head-up display switches between multiple display modes to present different information, then various driving information can be shown, but drivers feel burdened by the mode switching
Solution Approach 1:
Multiple types of driving information are merged into a single integrated display pattern on the head-up display. The intersection shape, directional arrow, inter-vehicle distance, and inter-intersection distance are combined in one visual representation, eliminating the need for mode switching while providing comprehensive driving assistance information.
Solution Approach 2:
The head-up display is designed to universally present multiple types of driving information simultaneously through a single display configuration. The display serves multiple functions: showing navigation guidance, distance information, and safety warnings all at once, making the system versatile without requiring mode changes.
3Loss of information
If the head-up display presents multiple types of information simultaneously, then the driver receives comprehensive driving assistance, but the limited irradiation range cannot accommodate all information
Solution Approach 1:
The invention uses dimensional arrangement to fit multiple information elements within the limited irradiation range. The intersection shape is displayed as a pattern with depth, the directional arrow is positioned within the intersection pattern, and distance information is integrated along the road direction, effectively utilizing spatial dimensions to accommodate comprehensive information in a compact area.
Solution Approach 2:
Multiple information elements are nested within each other to maximize space utilization. The directional arrow is nested within the intersection shape pattern, and distance information is integrated within the same display area, allowing comprehensive information presentation within the constrained irradiation range of the head-up display.
Data Source
AI summary
A display unit of the present invention includes a first display (head-up display) for displaying various information by irradiating a surface to be irradiated with video light and a control part for controlling the first display. The control part controls to display information on an inter-vehicle distance (bar graph), information on an inter-intersection (digital numerical value), an intersection image, and an arrow.