3D Display Inspection Using Reflection Panels for Tracking Period Detection
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Solution Overview
Problem
Existing 3D display devices lack a systematic method to quantify the tracking display period, which is crucial for accurately changing viewing points based on user location to provide seamless 3D imagery.
Innovation Solution
An inspection system is developed comprising a test reflected-image display device with a movable image reflection panel and a testing camera to analyze reflection luminance profiles, detecting the tracking display period by simulating user eye movement and tracking changes in viewing points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a systematic method is implemented to quantify the tracking display period, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The inspection system is divided into distinct functional modules: a test reflected-image display device with movable image reflection panel, a testing camera for capturing images, and a tracking display period detecting device for analysis. This segmentation allows each component to perform its specific function efficiently while maintaining overall system measurability without excessive complexity.
Solution Approach 2:
An image reflection panel is introduced as an intermediary element between the display device and the testing camera. This panel reflects the displayed image back to the camera, enabling indirect measurement of the tracking display period through luminance profile analysis, thus achieving precise measurement without requiring direct internal sensors in the display device.
2Measurement precision
If the image reflection panel is moved during testing, then measurement accuracy is improved, but the testing time increases
Solution Approach 1:
The image reflection panel is moved periodically during the testing process, creating a controlled periodic action that allows the system to capture multiple viewing point positions. This periodic movement enables accurate tracking display period measurement through repeated measurements at different positions, while the movement is constrained to necessary ranges to minimize time loss.
Solution Approach 2:
The testing camera continuously captures images throughout the panel movement process, and the tracking display period detecting device continuously analyzes the reflected image luminance profiles. This continuous data collection and analysis ensures that no useful measurement information is lost during the panel movement, maximizing measurement efficiency within the testing time frame.
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
The system effectively quantifies the tracking display period, ensuring timely adjustment of left and right-eye image data to maintain a seamless 3D viewing experience.
Implementation Method 1
a test reflected-image display device including an image reflection panel and a test sketch image disposed on the image reflection panel and configured to move relative to the display device
Data Source
AI summary
An inspection system for a display device includes a test reflected-image display device including an image reflection panel and a test sketch image disposed on the image reflection panel and configured to move relative to the display device, a testing camera configured to generate test reflected-image data based on a view of the image reflection panel reflecting a test 3D display image displayed by the display device and the test sketch image, and a tracking display period detecting device configured to analyze a reflection luminance profile based on the test reflected-image data and detect a tracking display period for the display device to change a viewing point of the test 3D display image.