Vehicle Display Apparatus for Stereoscopic 3D Image Crosstalk Control
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Solution Overview
Problem
Conventional three-dimensional image displays in vehicles do not account for the driver's position or surrounding environment, leading to a crosstalk phenomenon where images intended for one eye are visible to the other, causing discomfort and potentially hazardous dizziness during driving.
Innovation Solution
A vehicle display apparatus that uses a camera to monitor the position of the driver's eyes and adjust the output mode by switching between stereoscopic 3D and planar 2D images using a polarization filter, ensuring that images are only visible to the correct eye within predetermined ranges, thereby preventing crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a stereoscopic 3D image is displayed using a polarization filter, then the left and right images can be transmitted to the corresponding eyes, but a crosstalk phenomenon occurs when the driver views the image from an angle below or above the display screen, causing images to be superimposed and visible to the wrong eye
Solution Approach 1:
The patent applies dynamics by making the display system adaptive to the driver's position. The controller dynamically adjusts the displayed image based on real-time detection of the driver's head position and viewing angle. When the driver is within the optimal viewing range, stereoscopic 3D images are displayed; when the driver moves outside this range, the system switches to 2D images or adjusts polarization angles to prevent crosstalk, thus resolving the contradiction between maintaining stereoscopic quality and avoiding harmful crosstalk effects
Solution Approach 2:
The patent utilizes parameter changes by modifying the polarization angle of the display based on the detected viewing angle. The controller adjusts the polarization parameters in real-time according to the driver's position, changing the optical properties of the displayed image to match the driver's viewing conditions. This dynamic parameter adjustment prevents crosstalk while maintaining image quality across different viewing positions
2Adaptability or versatility
If the driver views the display screen from a position outside the predetermined range, then the display can accommodate various driver positions, but the crosstalk phenomenon becomes severe and causes dizziness, hindering safe driving
Solution Approach 1:
The patent implements feedback by using a camera to continuously detect the driver's head position and providing this information to the controller. The controller processes this feedback information and adjusts the display mode accordingly - switching from stereoscopic 3D to 2D images or adjusting polarization angles when the driver is detected outside the optimal viewing range. This closed-loop feedback system ensures that the display adapts to maintain image quality and prevent crosstalk regardless of driver position
Solution Approach 2:
The system dynamically transitions between different display modes (stereoscopic 3D, 2D, adjusted polarization) based on the driver's real-time position. This dynamic adaptability allows the system to accommodate various driver positions while preventing harmful crosstalk effects by switching to appropriate display modes when the driver moves outside the optimal viewing range
3Ease of operation
If a conventional stereoscopic 3D image is displayed without considering driver position, then the display apparatus is simple to operate, but the crosstalk phenomenon occurs and causes driver discomfort and safety issues
Solution Approach 1:
The patent applies self-service by enabling the display system to automatically detect the driver's position and adjust its output mode without requiring manual intervention. The camera and controller work autonomously to monitor driver position and switch between stereoscopic 3D, 2D, and adjusted polarization modes as needed. This self-adjusting capability maintains ease of operation while eliminating crosstalk and driver discomfort through automatic adaptation to viewing conditions
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 solution effectively reduces driver discomfort and enhances safety by ensuring that the display mode adapts to the driver's position, preventing crosstalk and maintaining clear vision while driving.
Implementation Method 1
a polarization filter needs to be attached to the display apparatus. Since information to be transmitted to the left eye is transmitted to the left eye and information to be transmitted to the right eye is transmitted to the right eye through the polarization filter
Data Source
AI summary
A method of controlling a vehicle display apparatus may include generating a user image as information on a user sitting on a seat corresponding to the display apparatus, extracting a midpoint between two eyes of the user from the user image and monitoring a position of the midpoint, and changing an output mode or an output area of the display apparatus in correspondence with the monitored position of the midpoint.