Stereoscopic Display Adjusting Views for Moving Viewers
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Solution Overview
Problem
Conventional stereoscopic image display devices, particularly switchable barrier types, fail to allow multiple viewers to observe a stereoscopic image when they move, as they typically require each viewer to be positioned within specific ortho-stereoscopic regions, and existing solutions do not effectively adapt to viewer movement.
Innovation Solution
A stereoscopic image display device incorporating a switchable panel with a detection unit and control unit that adjusts the disparity of two-dimensional images based on viewer movement, using a switchable panel with liquid crystals and a polarizing plate to convert two-dimensional images into three-dimensional images, allowing viewers to maintain a stereoscopic experience even when changing positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a switchable barrier type stereoscopic image display device is used, then a stereoscopic image can be displayed, but multiple viewers cannot observe the stereoscopic image when they move to different positions
Solution Approach 1:
The patent applies dynamics by making the barrier structure movable and adjustable. The barrier can dynamically change its position and configuration based on viewer location, allowing the system to adapt to multiple viewers at different positions while maintaining reliable stereoscopic image observation for each viewer
Solution Approach 2:
The patent segments the viewing space into multiple ortho-stereoscopic regions, each capable of providing stereoscopic images to viewers in that region. This segmentation allows different groups of viewers to simultaneously observe stereoscopic images from different positions without interfering with each other
2Adaptability or versatility
If the number of views (disparity) is increased to support multiple viewers, then more viewers can potentially observe stereoscopic images, but the device complexity increases
Solution Approach 1:
The patent makes the barrier structure multi-functional by enabling it to serve multiple purposes: it acts as both a structural component and a dynamically adjustable element that can be reconfigured for different viewing scenarios. This universality allows the same hardware to support multiple viewers without requiring separate dedicated structures for each viewer
Solution Approach 2:
The dynamic adjustability of the barrier allows the system to flexibly accommodate different numbers of viewers and different viewing configurations without requiring a completely different structure for each scenario, thereby managing complexity while maintaining versatility
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 multiple viewers to observe a stereoscopic image without glasses by detecting and tracking viewer movement, adjusting the image disparity to ensure continuous ortho-stereoscopic views, thereby allowing (N−1)/M viewers to experience the image simultaneously, even when positioned differently.
Implementation Method 1
a switchable panel with liquid crystals and a polarizing plate to convert two-dimensional images into three-dimensional images
Implementation Method 2
a switchable panel with liquid crystals and a polarizing plate to convert two-dimensional images into three-dimensional images
Data Source
AI summary
Disclosed is a stereoscopic image display device which detects movement of moving viewers from among multiple viewers and enables the multiple viewers to observe a stereoscopic image even if the moving viewers change positions, the stereoscopic image display device includes a display panel corresponding to one switchable region to emit two-dimensional images, the number of which is more than the number of N views (N being a natural number over 3), a switchable panel located on the display panel to convert the two-dimensional images into three-dimensional images and to emit the three-dimensional images when voltage is applied thereto, a detection unit to detect movement of moving viewers from among multiple views and final positions of the moving viewers, and a control unit to output a control signal to shift the views of the two-dimensional images according to the movement and the final positions of the moving viewers.