Vehicle Display Region Control for Stable Vertical Image Position
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Solution Overview
Problem
Existing display systems for vehicles can cause discomfort for drivers when the image displayed appears to move vertically with the driver's eye position, even if the driver did not intend to move their head vertically.
Innovation Solution
A display controlling device that includes a position detecting unit to track the driver's head and eye position, a region adjusting unit to adjust the image region on the display based on the detected positions, and a display controlling unit to prevent vertical adjustment of the image region when the driver's head moves both vertically and crosswise, ensuring the image remains stable vertically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the display system adjusts the image region position to correspond with the driver's eye position in the vertical direction, then the image tracking accuracy is improved, but the driver comfort deteriorates due to unintended image movement
Solution Approach 1:
The patent applies local quality by differentiating the treatment of vertical and horizontal eye position changes. The system selectively adjusts the image region position only in the horizontal direction while maintaining fixed position in the vertical direction, creating different response characteristics for different spatial dimensions based on the specific movement direction detected
2Measurement precision
If the display system continuously adjusts the image region based on eye position changes, then the image follows the driver's gaze accurately, but the system complexity increases due to additional control logic
Solution Approach 1:
The patent segments the eye position adjustment control into two independent dimensional components: horizontal adjustment and vertical adjustment. By separating the control logic into distinct horizontal and vertical processing paths with different adjustment rules, the system reduces overall complexity while maintaining precise gaze tracking functionality
Data Source
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AI summary
[Problem] To prevent a driver from feeling uncomfortable with an image displayed on a display. [Means for Resolution] A display controlling device 13 comprises: a position detecting unit 131 for detecting a position of the head DH of a driver and a position of an eye DE of the driver; a region adjusting unit 132 for adjusting the position of a region R, to be displayed on a display 12, in an outside image PQ, depending on the detection result by the position detecting unit 131; and a display controlling unit 133 for displaying, on the display 12, a region PE corresponding to the region R of the position adjusted by the region adjusting unit 132, wherein: when there is a change in the position of the head DH so as to move in both the vertical direction in the crosswise direction of the vehicle 1, the region adjusting unit 132 prevents adjustment of the position of the region R to a position corresponding to the change, in the vertical direction, of the position of the eye DE, and adjusts the position of the region R to a position corresponding to a change in the position of the eye DE in the crosswise direction and/or the front/rear direction.