Vehicle Display Adaptation Across Driver Visual Field Zones
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Solution Overview
Problem
The recognition burden on drivers is increased due to the variable positioning of display units within their visual field while driving, affecting the recognition of information displayed, as the display unit's position relative to the driver's line of sight impacts its visibility and readability.
Innovation Solution
A vehicle display control apparatus comprising a line-of-sight detection unit, a visual field estimation unit, and a display controller that adjusts display information based on the estimated visual field and positional relationship with the display unit, optimizing information display modes to reduce driver burden by considering the driver's visual field and line of sight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display unit is positioned at the edge of the driver's visual field, then the display unit can be placed in more locations, but the recognition level of the driver for the display information is lowered
Solution Approach 1:
The patent applies dynamics by making the display content adaptive rather than static. The display controller dynamically adjusts the type of information displayed based on the detected line of sight position. When the driver's line of sight is near the display unit, detailed information is shown; when it's at the periphery, only simple information is displayed. This dynamic adaptation resolves the contradiction between positioning flexibility and recognition quality.
Solution Approach 2:
The patent applies local quality by providing different display contents for different visual field zones. The visual field is divided into a central region (high recognition) and peripheral regions (lower recognition). Each zone receives appropriately tailored display information - detailed content in the center and simplified content at the edges - thus optimizing overall recognition while maintaining positioning flexibility.
2Loss of information
If detailed information is displayed when the display unit is at the edge of the visual field, then information completeness is improved, but the recognition burden on the driver is increased
Solution Approach 1:
The patent applies parameter changes by modifying the information display parameters (content type, detail level) based on the line of sight detection results. The system changes the display parameter from detailed to simplified information depending on the driver's visual attention position, thus reducing recognition burden while maintaining essential information delivery.
Solution Approach 2:
The patent applies partial action by selectively displaying only the necessary portion of information based on the driver's visual field position. Instead of always displaying complete detailed information, the system displays partial information appropriate to the current visual context, reducing the overall recognition burden while maintaining operational effectiveness.
3Device complexity
If the display information mode is not adjusted based on line of sight, then the display system is simpler, but the driver's psychological annoyance is increased
Solution Approach 1:
The patent applies feedback by using the line of sight detection unit to continuously monitor the driver's visual attention and feeding this information back to the display controller. The display controller then adjusts the display content based on this feedback loop, creating an adaptive system that reduces driver annoyance by presenting appropriate information at appropriate times, despite the increased system complexity.
Data Source
AI summary
In a vehicle display control apparatus, a line of sight of a driver is detected, and a visual field of the driver is estimated from the detected line of sight. Then, display information displayed on a display unit of a vehicle is controlled based on a positional relationship between the estimated visual field and the display unit. As a result, the information to be displayed can be controlled in accordance with a recognition level of the driver for the information displayed on the display unit based on the positional relationship between the visual field of the driver and the display unit, and the information can be displayed in a mode easily recognized by the driver.