Multi-Display Visibility Control for Driver Line-of-Sight Safety
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Solution Overview
Problem
Existing vehicle display systems often cause unintentional line-of-sight movement in drivers due to the placement and operation of multiple display devices, which can distract drivers and compromise safety.
Innovation Solution
A display control method that positions a first display device to show a transparent screen through the windshield and a second display device at a different location, using a line-of-sight detection device to adjust the visibility of the second display device relative to the first, ensuring the driver can focus on driving without unnecessary visual distractions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple display devices are mounted on the vehicle to provide information to the driver, then the driver can access more information, but the driver may unintentionally move line of sight to display screens, reducing driving safety
Solution Approach 1:
The patent applies dynamics by making the display visibility adjustable and adaptive rather than static. The display control device dynamically adjusts the visibility of the second display device based on real-time detection of the driver's line-of-sight position. When the driver's line of sight is directed toward the second display device, the system reduces its visibility to prevent distraction, while maintaining full visibility when the driver is looking at the road. This dynamic adjustment resolves the contradiction by allowing information access only when it does not compromise driving safety.
Solution Approach 2:
The patent implements feedback through the line-of-sight detection device that continuously monitors the driver's gaze direction and provides real-time feedback to the display control device. This feedback loop enables the system to automatically adjust display visibility based on the driver's attention state. The feedback mechanism ensures that the display system adapts to the driver's needs while maintaining safety, resolving the contradiction between information accessibility and driving safety.
2Ease of operation
If the second display device is always visible to provide information, then information accessibility is improved, but driver distraction increases and driving safety deteriorates
Solution Approach 1:
The system dynamically adjusts the visibility of the second display device based on the driver's line-of-sight position. When the driver is looking at the road, the second display device remains fully visible for easy information access. When the driver's gaze shifts toward the second display device, the system automatically reduces its visibility to minimize distraction. This dynamic behavior resolves the contradiction by making information accessible only when it does not create harmful distraction.
Solution Approach 2:
The system takes preliminary anti-action by proactively reducing the visibility of the second display device before significant distraction can occur. The line-of-sight detection device anticipates potential distraction by detecting when the driver's gaze is moving toward the display, and the control device preemptively adjusts visibility to prevent the harmful effect. This preliminary action prevents driver distraction while maintaining information accessibility when appropriate.
3Reliability
If the first display device shows transparent screen through windshield, then driver can view outside while accessing information, but the placement of second display device at different location creates additional line-of-sight movement
Solution Approach 1:
The patent uses feedback from the line-of-sight detection device to manage the complexity of having multiple display devices. The detection device continuously monitors driver gaze and provides feedback to the control device, which automatically adjusts the visibility of the second display device. This feedback mechanism simplifies the interaction with the complex multi-display system by making adjustments automatic based on driver behavior, resolving the contradiction between maintaining driving focus and managing display configuration complexity.
Data Source
AI summary
A display control method for controlling displays of a first display device and a second display device included in a vehicle is provided. The display control method includes displaying, on the first display device, a transparent screen at a position where a driver is capable of viewing an outside of the vehicle through a windshield; locating a screen of the second display device at a position different from the screen of the first display device; and in a case that a line-of-sight position of the driver detected by a line-of-sight detection device included in the vehicle does not match the position of the screen of the second display device, controlling the display of the screen of the second display device more than the display of the screen of the first display device.