Vehicular Viewing Device Warning Display Outside Field of View
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Solution Overview
Problem
Existing vehicular viewing devices struggle to display warnings without impeding the required field of view, as information about following vehicles may not be superimposed correctly due to projector-based systems, leading to potential obstruction of the driver's view.
Innovation Solution
A vehicular viewing device with a display section and controller that displays warning images outside the predetermined field of view required range by positioning them above the horizon line or vanishing point in the captured image, and adjusts the image size based on the warning target's size and distance, ensuring the warning is visible without obstructing the driver's view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If warning information is displayed in the mirror using a projector, then the driver is warned of following vehicles, but the information may be displayed in a position that impedes the driver's rear checking action or may not be displayed in the intended position depending on mirror adjustment
Solution Approach 1:
The patent transitions from projecting warnings onto the 2D mirror surface to displaying warnings on a separate display unit positioned in the upper peripheral region of the mirror's field of view. This dimensional shift allows warning information to be presented without obstructing the driver's view of the rear scene, resolving the contradiction between reliable warning display and ease of rear checking.
2Ease of operation
If warning information is displayed outside the field of view required range, then the field of view is not impeded, but the warning may not be visible to the driver
Solution Approach 1:
The patent applies local quality by selectively positioning warning information in the upper peripheral region of the display, which corresponds to the region outside the field of view required range. This localized placement ensures that warnings are displayed in areas that do not interfere with the driver's required field of view while remaining within the overall visible display area.
3Device complexity
If the warning image size is fixed, then the display is simple, but the warning may not be appropriately visible or proportional to the detected target
Solution Approach 1:
The patent implements dynamics by making the warning image size variable rather than fixed. The display control unit adjusts the size of warning information based on the size of the detected following vehicle in the captured image, creating a dynamic relationship between the warning display and the actual target being monitored. This enhances the precision of warning representation while maintaining reasonable system complexity.
Data Source
AI summary
A vehicular viewing device including a display section that displays an imaging result of a rear imaging section imaging behind a vehicle, and a controller that, when an warning target has been detected in the imaging result, controls the display section such that a predetermined warning image is displayed in a region outside a predetermined field of view required range in a captured image expressed by the imaging result.