Stereoscopic Display Multi-Observer Viewpoint Control
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Solution Overview
Problem
Existing stereoscopic display devices do not allow multiple observers to simultaneously recognize a stereoscopic image, and the image quality deteriorates when observers move.
Innovation Solution
A stereoscopic display device with an optical element that restricts image positions for multiple observers, a display with pixels arranged in intersecting directions, and a display control portion that adjusts viewpoint regions and image boundaries based on observer positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If data for left eye and right eye are aggregated at a single location for high-resolution display, then image quality is maintained, but multiple observers cannot simultaneously visually recognize the stereoscopic image
Solution Approach 1:
The display surface is divided into multiple viewpoint regions, each dedicated to displaying stereoscopic images for specific observers. The display control portion segments the single display surface into first viewpoint regions for first observers and second viewpoint regions for second observers, enabling multiple observers to simultaneously view stereoscopic images without compromising image quality.
Solution Approach 2:
The patent introduces a spatial dimension by creating multiple viewpoint regions at different positions on the display surface. Instead of aggregating data at a single location, the system distributes viewpoint regions across the display surface, allowing different observers to access stereoscopic images from different spatial locations simultaneously.
2Reliability
If data are aggregated at a specific location for stereoscopic display, then stereopsis is achieved, but the observer cannot visually recognize the image when moving
Solution Approach 1:
The display control portion dynamically adjusts which viewpoint region is active based on the observer's position. When an observer moves, the system dynamically switches between first viewpoint regions and second viewpoint regions, ensuring that the stereoscopic image remains accessible to the moving observer without losing stereoscopic effect.
Solution Approach 2:
Each viewpoint region is designed to serve multiple purposes: displaying stereoscopic images for different observers and adapting to observer movement. The display surface serves multiple functions by accommodating both first observers and second observers with their respective viewpoint regions, making the system universally applicable to various viewing scenarios.
3Device complexity
If a single viewpoint region is used for display, then device complexity is reduced, but multiple observers cannot simultaneously recognize the stereoscopic image
Solution Approach 1:
The display surface is segmented into multiple viewpoint regions that can be independently controlled. The display control portion manages these segmented regions by selectively activating appropriate regions for different observers, achieving multi-observer support through systematic division of the display surface into manageable segments.
Data Source
AI summary
A stereoscopic display device includes an optical element configured to restrict a (2h−1)th image for a right eye of an hth (h: a natural number) observer and a 2hth image for a left eye of the hth observer to a position where visual recognition is possible and a display having a display surface including a plurality of pixels arranged in a first direction and a second direction and configured to display the (2h−1)th image and the 2hth image. A control process is performed so that at least one of a (2h−1)th viewpoint region where the (2h−1)th image is visually recognizable and a 2hth viewpoint region where the 2hth image is visually recognizable is wider than a distance between the eyes of the observer, the (2h−1)th image is displayed on (n(2h−1)) pixels, the 2hth image is displayed on (n(2h)) pixels, and a position of at least one of a (2h−1)th interocular boundary that is a boundary between the right eye and the left eye of the hth observer and a (2h−1)th interobserver boundary that is a boundary between the hth observer and an (h+1)th observer is moved on the basis of position data indicating positions of the eyes of the hth observer.