Vehicle HUD Color Transformation for Background Adaptation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle-mounted HUD systems fail to maintain high visibility of the display image due to inadequate adaptation to changes in the background luminance or color while the vehicle is in motion, leading to deteriorated viewability.
Innovation Solution
The system employs a camera and environmental light sensor to detect brightness and chromaticity, and a control system that executes a color transformation process to adjust the display image, ensuring the display image's color matches the actual background conditions, thereby maintaining visibility despite changes in the background.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the display image color is adjusted based on detected background color or illuminance, then the visibility of the display image is improved, but the system fails to maintain high visibility when the background changes significantly during vehicle travel
Solution Approach 1:
The patent implements dynamic adjustment of display image characteristics by continuously detecting background luminance and color changes during vehicle travel, and real-time modifying the display parameters including luminance, color temperature, and chromaticity to maintain optimal visibility under varying background conditions
Solution Approach 2:
The system employs feedback mechanisms by using sensors to detect background luminance and color changes, then using this detected information to automatically adjust the display image parameters, creating a closed-loop control system that adapts to changing environmental conditions
2Illumination intensity
If the display luminance is increased to maintain visibility against bright backgrounds, then the visibility is improved, but the power consumption increases
Solution Approach 1:
The patent changes multiple display parameters simultaneously including luminance, color temperature, and chromaticity based on detected background conditions, optimizing the combination of these parameters to maintain visibility while managing power consumption through intelligent parameter adjustment rather than simply increasing luminance
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach ensures high-level visibility of the display image by eliminating the time lag between background detection and color transformation, allowing for real-time adaptation to changes in background conditions, reducing driver fatigue, and enhancing the sense of depth perception.
Implementation Method 1
an environmental light sensor 150 configured to detect two-dimensional distribution data of a non-background region
Implementation Method 2
a camera 110 configured to capture an image in front including information (display information) to be displayed by the HUD 200 and a background image
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An image display apparatus (200) includes a display unit (230) to display a display image; a detection unit (101) to detect information regarding at least one of chromaticity and brightness of a non-background region outside a region that is superimposed on the display image; and a transformation unit (102) to transform a display content of the display image based on the detected information.