Stereoscopic Display Mechanical Shutters Light Density
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Solution Overview
Problem
Existing stereoscopic image display devices face challenges in efficiently utilizing display space, leading to increased size and reduced light density due to spaced small images, resulting in distorted and dim images, especially when the number of partial regions increases.
Innovation Solution
The display is divided into sections with densely arranged small images, each composed of minute images, and mechanical shutters are used to selectively extract light rays from the central area of each small image, allowing for high-speed image switching and improved light density without distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If small images are spaced apart on the display, then the display area is easier to manage, but the display device size increases and light density decreases
Solution Approach 1:
The display area is divided into multiple sections, with each section containing multiple small images arranged in a matrix pattern. This segmentation allows efficient utilization of the display area while maintaining compact device dimensions.
Solution Approach 2:
Small images are arranged in a two-dimensional matrix within each section rather than being spaced linearly. This dimensional arrangement increases light density while keeping the overall display device compact.
2Ease of operation
If small images are spaced apart on the display, then the display area is easier to manage, but image brightness decreases due to reduced light density
Solution Approach 1:
The display is divided into sections with multiple small images per section, allowing systematic organization while maintaining high density arrangement that preserves light intensity.
Solution Approach 2:
By arranging small images in a two-dimensional matrix within each section, the light density is maximized, resulting in brighter images without requiring larger display areas.
3Manufacturing precision
If the number of partial regions in each small image increases, then the image resolution improves, but image distortion increases due to oblique viewing angles
Solution Approach 1:
The system dynamically switches between different small images corresponding to different partial regions of the three-dimensional object. This dynamic switching allows the extraction of light rays from the central area of each small image, maintaining image quality without distortion even as the number of partial regions increases.
Solution Approach 2:
The three-dimensional object is divided into multiple partial regions, with each small image corresponding to a specific partial region. This segmentation enables high-resolution reconstruction while maintaining proper geometric relationships through selective light ray extraction.
4Speed
If mechanical shutters switch small images at high speed, then the image switching speed improves, but the display responding speed becomes a limiting factor
Solution Approach 1:
Multiple small images are pre-displayed on the display simultaneously, corresponding to different partial regions of the three-dimensional object. The mechanical shutters then selectively extract light rays from these pre-displayed images, enabling high-speed switching without being limited by the display's response time.
Solution Approach 2:
The system creates multiple copies of the three-dimensional object data as separate small images on the display, each representing a different partial region. This allows the mechanical shutters to switch between copies at high speed without requiring the display to respond rapidly to each switching command.
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 approach enables a compact, high-resolution, and bright stereoscopic image display with minimal distortion, effectively utilizing display space and maintaining image quality even with increased partial regions.
Implementation Method 1
mechanical shutters are used to selectively extract light rays from the central area of each small image
Implementation Method 2
light rays from each small image passing through when the first mechanical shutters are on
Data Source
Figure 1
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Figure 3
AI summary
A stereoscopic image display device includes a display 11 divided into sections 13 in each of which displayed are small images 12a to 12d each having a plurality of minute images 14, a shutter panel 16 disposed in front of the display 11 and including first mechanical shutters 17, which are arranged side by side in units of the minute image 14 and time-divisionally divide each section 13 per each of the small images 12a to 12d by switching on and off in units of the minute image 14, and an image forming panel 23 including image forming means 24 arranged side by side for forming an image from light rays from each of the small images 12a to 12d passing through the first mechanical shutters 17 when the first mechanical shutters 17 are on. Each of the small images 12a to 12d forms a part of a stereoscopic image to be displayed, one of the image forming means 24 is provided for each of the small images 12a to 12d, each of the small images 12a to 12d is composed of a plurality of the minute images 14 arranged in a dispersion state, and each image forming means 24 is on an axis passing through a central area of a corresponding one of the small images 12a to 12d.