Vehicle Display Control Semi-Transparent Guide Line
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Solution Overview
Problem
Existing vehicle display systems fail to effectively display the locus of vehicle wheels in an easy-to-understand manner, often causing user annoyance due to frequent changes in guide line visibility with steering angle.
Innovation Solution
A vehicle display control device and method that superimpose a semi-transparent guide line indicating the predicted wheel locus onto the vehicle body image, using a support ECU connected to field monitor cameras and user input devices, allowing the guide line to be consistently displayed regardless of steering angle, with the vehicle body visible through the guide line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the guide line is displayed only when steering angle is a predetermined value or more, then the display is simplified, but the wheel locus becomes invisible at small steering angles causing user confusion
Solution Approach 1:
The patent applies local quality by making the guide line semi-transparent specifically in regions where it overlaps with the vehicle body image, while keeping it fully visible in other areas. This allows the guide line to be continuously displayed (providing wheel locus information) while maintaining visibility of the vehicle body through the semi-transparent portions, thus resolving the contradiction between continuous information display and visual clarity.
2Loss of information
If the guide line is continuously displayed regardless of steering angle, then wheel locus information is always available, but the display becomes cluttered and annoying to users
Solution Approach 1:
The patent reduces user annoyance by applying semi-transparency locally to the guide line portions that overlap with the vehicle body image. This selective transparency treatment maintains continuous information display while improving visual comfort by preventing the guide line from completely obscuring the vehicle body, thus reducing clutter and user annoyance.
Solution Approach 2:
The patent utilizes transparency changes (a visual property similar to color changes) to make the guide line semi-transparent in overlapping regions. This visual property modification allows the guide line to be continuously displayed without causing excessive clutter, as the semi-transparent portions allow the vehicle body image to show through, reducing visual overload and user annoyance.
3Area of stationary object
If the guide line overlaps with the vehicle body image, then space is efficiently utilized, but the vehicle body becomes difficult to see
Solution Approach 1:
The patent resolves this contradiction by making the guide line semi-transparent specifically in the overlapping regions with the vehicle body image. This local transparency modification allows the guide line to occupy the same display space as the vehicle body (efficient area utilization) while simultaneously maintaining vehicle body visibility through the semi-transparent portions, thus preventing information loss.
Data Source
AI summary
A vehicle display control device includes: a locus determination unit determining a predicted locus of a wheel of a subject vehicle according to a steering angle of the subject vehicle; and a display processing unit displaying an image of a field view of the subject vehicle including a vehicle body of the subject vehicle on a display device, and the display processing unit superimposes the guide line indicating the predicted locus determined by the locus determination unit on the image of the field view regardless of the steering angle of the subject vehicle, while semi-transparently displaying a portion of the guide line which overlaps with the vehicle body, thereby allowing visibility of the vehicle body.