Stereoscopic Display Device for Variable Eye Height Adaptation
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Solution Overview
Problem
Conventional stereoscopic image display devices fail to provide satisfactory stereoscopic effects when a viewer's eyes are positioned at various heights relative to the display device, as they primarily rely on horizontal binocular parallax, which may not account for vertical variations in viewer positioning.
Innovation Solution
A stereoscopic image display device and method that generate and display sectional images using a signal controller to create top and bottom left and right image signals, applying transformation matrices to simulate viewpoints at different angles, allowing for stereoscopic effects even when viewer eyes are not aligned horizontally with the display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional stereoscopic image display devices rely on horizontal binocular parallax, then stereoscopic effects can be achieved for viewers at standard viewing positions, but satisfactory stereoscopic effects cannot be provided when viewer's eyes are positioned at various heights relative to the display device
Solution Approach 1:
The patent divides the stereoscopic image into four sectional images (top-left, top-right, bottom-left, bottom-right) corresponding to different viewing zones. Each sectional image is optimized for specific eye position ranges, allowing the display to adapt to viewers at various heights by presenting appropriate image segments for their eye positions.
Solution Approach 2:
The patent dynamically adjusts which sectional images are displayed based on detected eye position. The system can switch between different display modes (e.g., displaying all four sections, or selecting specific sections) depending on the viewer's eye height, making the stereoscopic effect reliable across varying positions.
2Adaptability or versatility
If the display generates and displays sectional images according to eye position, then satisfactory stereoscopic effects can be achieved for viewers at various heights, but the device complexity increases due to signal controller processing and multiple image generation
Solution Approach 1:
The signal controller is designed to perform multiple functions: it can process full-resolution stereoscopic images, generate sectional images, detect eye position, and switch between different display modes. This multi-functionality reduces the need for separate dedicated components for each function, managing complexity while achieving adaptability.
Solution Approach 2:
The patent creates simplified copies of the original stereoscopic image in the form of four sectional images. Instead of processing complex variable-geometry transformations, the system uses pre-defined sectional copies that can be selectively displayed, reducing computational complexity while maintaining adaptability to different eye positions.
3Adaptability or versatility
If the display uses transformation matrices to simulate viewpoints at different angles, then stereoscopic effects can be achieved for non-horizontal eye positions, but the processing time and computational load increase
Solution Approach 1:
The patent pre-calculates and stores transformation matrices for standard eye position angles. Instead of computing transformations in real-time for arbitrary angles, the system selects from pre-prepared matrices corresponding to common viewing scenarios, significantly reducing processing time while maintaining the capability to simulate different viewpoints.
Solution Approach 2:
The system changes discrete parameters (selection of pre-defined transformation matrices) rather than continuously computing transformation parameters. This approach converts a continuous computational problem into a discrete selection problem, reducing computational load and processing time while maintaining adaptability to different viewing angles.
Data Source
AI summary
A display device may include a signal controller to use a received image signal to generate sectional image signals, to determine a sequence for displaying sectional images that respectively correspond to the sectional image signals, and to use the sectional image signals to generate an image data signal. The sectional images may include a top left image, a bottom left image, a top right image, and a bottom right image. The device may further include a display panel to display the sectional images according to data signals generated based on the image data signal and according to the sequence. The sectional images may be portions of a whole image that has a size substantially equal to a display area of the display panel.