Vehicle Display Color Feedback for Head-Up Visibility
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Solution Overview
Problem
In-vehicle displays, such as head-up displays, face visibility issues due to similar colors between the display image and the external view, leading to decreased recognition, especially when the driver's drowsiness or external illuminance affects the display's visibility.
Innovation Solution
A moving object equipped with a display unit, imaging unit, and control unit that captures images of both the display and external views, adjusts the display image's color and luminance based on the captured images to enhance visibility, and estimates the driver's condition to prevent accidents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display image uses a color similar to the external view, then the display can maintain color consistency with the environment, but the visibility of the display image decreases
Solution Approach 1:
The display system dynamically adjusts the color of the display image based on the detected external view color. The arithmetic unit compares the color of the display image with the color of the external view and automatically corrects the display image color to ensure sufficient visibility while maintaining environmental adaptability.
Solution Approach 2:
The system uses feedback from the imaging unit that captures both the display image and external view. The arithmetic unit analyzes the captured images, compares colors, and feeds back color correction information to adjust the display output, creating a closed-loop control system that optimizes visibility.
2Illumination intensity
If the display luminance is increased to improve visibility, then the display image becomes more visible, but the power consumption increases
Solution Approach 1:
Instead of simply increasing luminance, the system changes the color parameters of the display image to achieve better visibility. By adjusting hue, saturation, and brightness parameters based on external view conditions, the system maintains visibility while avoiding excessive power consumption associated with high luminance output.
3Illumination intensity
If the system continuously monitors and adjusts display color based on external conditions, then the visibility is optimized, but the device complexity increases
Solution Approach 1:
The imaging unit serves multiple functions: capturing the external view for color analysis and capturing the display image for comparison. This multi-functional approach reduces the need for separate sensors and simplifies the overall system architecture while achieving visibility optimization.
Solution Approach 2:
The system uses its own display image as captured by the imaging unit as a reference for color comparison. This self-referential approach eliminates the need for additional external references or complex calibration systems, simplifying the device while maintaining optimization capability.
Data Source
AI summary
A moving object including a display apparatus capable of performing highly visible display is provided. The moving object includes a display unit, an imaging unit, an arithmetic unit, and a control unit. The display unit has a function of displaying a display image. The imaging unit has a function of obtaining a first captured image including the display image and an external view overlapping with the display image. The arithmetic unit has a function of comparing a color of the display image and a color of the external view and correcting the color of the display image on the basis of a comparison result. The control unit has a function of controlling running of the moving object on the basis of the first captured image.