Transparent Vehicle Display With Pixel-Level Anti-Glare Shielding
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Solution Overview
Problem
Existing transparent display systems in vehicles cause excessive light shielding, obscuring the road landscape due to fixed circular or elliptical light-shielding areas that also cover non-glare light sources, leading to poor visibility for drivers.
Innovation Solution
An intelligent transparent light-shielding system that uses a camera to capture an original driving image, converts it into a grayscale image, and then into an anti-glare image with adjustable light-shielding based on pixel grayscale values, allowing dynamic adjustment of light-shielding rates to match glare sources, while maintaining transparency for non-glare areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a circular or elliptical light-shielding area is used in the transparent display system, then the glare light source can be covered, but the road landscape of non-glare light sources is also covered causing excessive light shielding
Solution Approach 1:
The patent applies local quality by making different regions of the transparent display have different light-shielding properties. Specifically, the display dynamically adjusts the light-shielding rate of each pixel based on the detected glare source position and shape, so that only the regions corresponding to glare sources have high light-shielding rates while other regions maintain transparency. This resolves the contradiction by providing targeted shielding exactly where needed without obscuring the broader road landscape.
Solution Approach 2:
The patent implements dynamics by making the light-shielding area shape and position dynamically adjustable based on real-time detection of glare sources. Unlike fixed circular or elliptical shielding patterns, the system continuously adapts the shielding region to match the actual shape, size, and location of glare sources detected by the camera. This dynamic adaptation ensures that shielding is applied precisely to glare sources while preserving visibility of non-glare areas.
2Adaptability or versatility
If a fixed circular or elliptical light-shielding area is used, then the device structure is simple, but the light-shielding area cannot adapt to irregular shapes of glare light sources resulting in excessive light shielding
Solution Approach 1:
The patent applies preliminary action by pre-establishing the correspondence relationship between grayscale values and light-shielding rates, and by pre-processing the captured image to identify glare sources before displaying the adjusted image. The system converts the captured image to grayscale, applies thresholding to identify glare regions, and then uses this processed information to control the transparent display's light-shielding characteristics. This preliminary processing enables the system to adapt to irregular glare shapes without requiring complex real-time adjustments during display.
Data Source
AI summary
An intelligent transparent light-shielding system applied to a vehicle includes a camera, a transparent display, and a processor. The processor converts an original driving image received from the camera into a grayscale image, converts the grayscale image into an anti-glare image according to a preset threshold, and transmits the anti-glare image to the transparent display for display. Pixels in the grayscale image with grayscale values equal to or lower than the preset threshold respectively correspond to pixels in the anti-glare image with grayscale values equal to a lower limit value. Pixels in the grayscale image with grayscale values greater than the preset threshold respectively correspond to pixels in the anti-glare image with grayscale values greater than the preset threshold. A light-shielding rate of the transparent display corresponds to the grayscale values of the pixels in the anti-glare image.