3D Display System with Camera-Based Viewing Zone Guidance
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Solution Overview
Problem
Existing 3D display systems using parallax barrier or lenticular lens methods provide a stereoscopic effect only at a predetermined position, leading to distorted images outside this position due to inverted or separated left and right images.
Innovation Solution
A 3D display system that synthesizes 3D images with observer position information using a camera and controller to calculate extended intensity distribution, displaying an optimal viewing area image on the panel, allowing observers to move to the best viewing position without glasses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a parallax barrier or lenticular lens method is used to form viewing zones, then a stereoscopic effect can be achieved at a predetermined position, but the image becomes distorted outside this position due to inverted or separated left and right images
Solution Approach 1:
The patent implements dynamic adjustment of the display system by detecting observer position and actively modifying the displayed image content. The controller adjusts the image based on the observer's location to maintain optimal stereoscopic effect across different viewing positions, transforming the static viewing zone limitation into a dynamic solution.
Solution Approach 2:
The system uses a camera to detect the observer's position and feeds this information back to the controller, which then adjusts the image display accordingly. This feedback loop enables the system to adapt to different viewing positions and maintain image quality, resolving the contradiction between fixed viewing zones and flexible adaptability.
2Ease of operation
If the viewing zone is fixed for a small number of people, then observation without special glasses is enabled, but the observing range is limited
Solution Approach 1:
The system dynamically adapts to different observers by detecting their position and adjusting the displayed image in real-time. This allows multiple observers at different positions to view the 3D content without glasses, expanding the observing range while maintaining ease of operation.
Solution Approach 2:
The display system becomes universal by accommodating multiple observers at various positions within the display area. The camera-based detection and adaptive image adjustment enable the system to serve multiple users simultaneously without requiring special glasses, enhancing both accessibility and versatility.
3Reliability
If holographic display methods are used to display images based on 3D coordinates, then perfect 3D images with all stereoscopic factors can be achieved, but technological difficulties and large space occupation make them difficult to use
Solution Approach 1:
Instead of using complex holographic equipment to create true 3D images, the patent uses a camera to capture 2D images of the observer and processes these copies to generate adaptive display content. This approach achieves good 3D effect without the technological complexity and space requirements of holographic systems.
Solution Approach 2:
The patent replaces the mechanical and optical complexity of holographic display systems with an electronic image processing approach. By using camera-based detection and computational methods to adjust the display, the system achieves comparable 3D quality without the cumbersome equipment and space requirements.
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
Enables clear stereovision by guiding observers to the optimal viewing area, minimizing crosstalk and improving the quality of the 3D image experience across the display panel.
Implementation Method 1
obtain a 3D image and position information data of the observer using stereo matching
Implementation Method 2
a parallax barrier including apertures is disposed in front of a display panel
Implementation Method 3
calculate an extended intensity distribution of light emitted from respective light sources of the glassesless-type 3D image display and reaching respective views in an observing area extended in an x direction of a horizontal axis and in a z direction of a vertical axis
Data Source
AI summary
Provided is a three-dimensional (3D) display system. The 3D display system synthesizes a 3D image and position information data of an observer obtained through a camera with an optimal viewing area image with respect to horizontal and vertical directions of a display panel in a 3D space, and displays the synthesized image on the display panel such that the observer can visually know an optimal viewing area. Accordingly, the 3D display system enables the observer to visually check the optimal viewing area with ease and induces the observer to move to a position in the optimal viewing area.