Hybrid Multiplexed 3D Display Resolving Spatial Resolution and Brightness Trade-offs
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Solution Overview
Problem
Current 3D display technologies face challenges in achieving high spatial resolution and low signal frequency while maintaining image quality, as they often sacrifice spatial resolution or increase cost and size due to the need for viewer tracking systems.
Innovation Solution
A hybrid multiplexed 3D display system that includes a light source, an image splitter, and an image display, where the light source emits light in different directions, and the image splitter transmits this light through the image display to generate multiple view images, achieving a stereoscopic effect without the need for a viewer tracking system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If spatial multiplexed display is used to display 3D image on multi-view autostereoscopic display, then multiple views can be displayed simultaneously, but spatial resolution of single view is greatly reduced
Solution Approach 1:
The display system segments the image display into multiple independent view regions, with each region dedicated to a specific view. This segmentation allows multiple views to be displayed simultaneously without interfering with each other's resolution, as each view occupies a distinct spatial zone in the display panel.
Solution Approach 2:
The patent transitions from temporal multiplexing to spatial multiplexing by adding a spatial dimension to view separation. Instead of displaying views sequentially in time, the system arranges multiple view images side-by-side in space, allowing simultaneous display while maintaining resolution through proper spatial allocation of display pixels.
2Manufacturing precision
If temporal multiplexed display is used to display 3D image on multi-view autostereoscopic display, then spatial resolution is maintained, but brightness is seriously decreased and signal frequency is too high
Solution Approach 1:
The display system maintains continuous display of all views simultaneously rather than switching between views in time. This continuity ensures that light is constantly available for all views without interruption, eliminating the brightness reduction that occurs in temporal multiplexing where each view receives light only during its designated time slot.
Solution Approach 2:
The patent employs periodic light emission from the light source synchronized with the display refresh cycle, where light is emitted continuously at a frequency that supports all views simultaneously. This periodic action at appropriate frequency avoids the need for high-frequency temporal switching, reducing signal frequency requirements while maintaining brightness.
3Manufacturing precision
If viewer tracking system is used to generate required images corresponding to viewer position, then multi-view capability is achieved without sacrificing spatial resolution, but cost and size of display are increased
Solution Approach 1:
The display system provides multi-view capability inherently through its fixed spatial arrangement of view regions and optical elements, without requiring external tracking systems. The display structure itself serves the function of directing appropriate views to appropriate viewing zones, eliminating the need for additional tracking devices and reducing overall system complexity.
Solution Approach 2:
The patent introduces fixed optical elements such as beam splitters and mirrors as intermediaries between the display panel and the viewer. These intermediaries automatically direct light from specific view regions to specific viewing directions, providing passive view separation without requiring active tracking or complex control systems.
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 enhances spatial resolution and reduces signal frequency, allowing for a more efficient and cost-effective 3D display with improved image quality and reduced motion parallax, making it suitable for public market adoption.
Implementation Method 1
The light source is used for sequentially providing a plurality of groups of light emitting toward different emitting directions. The image splitter is disposed above the light source for transmitting each of the groups of light to a view group comprising a plurality of views.
Data Source
AI summary
A hybrid multiplexed 3D display including a light source, an image splitter, and an image display is provided. The light source is used for sequentially providing a plurality of groups of light emitting toward different emitting directions. The image splitter is disposed above the light source for imaging each of the groups of light at a view group comprising a plurality of views. The image display is disposed above the light source for providing image data. The groups of light are sequentially transmitted through the image display and the image splitter to respectively generate a plurality of view images at the views such that an image viewed by a user includes at least two of the view images to achieve a stereoscopic visual effect.