3D Display Light Source Segmentation for Angular Resolution
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Solution Overview
Problem
Existing 3D digital content display technologies face challenges in achieving high angular resolution without compromising spatial resolution, due to limitations in pixel density and the tradeoff between angular and spatial resolution in light field displays.
Innovation Solution
The use of an array of RGB light sources to illuminate a spatial light modulator at different angles, allowing for the creation of multiple views of 3D content with full spatial resolution, by time-sequentially activating each light source to focus light on the modulator at distinct angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pixel density is increased to improve angular resolution, then angular resolution is improved, but spatial resolution deteriorates
Solution Approach 1:
The patent segments the illumination function by using multiple separate light sources (first light source and second light source) positioned at different locations. Each light source illuminates the spatial light modulator from a different angle, enabling multiple views to be generated without requiring increased pixel density. This segmentation resolves the contradiction by distributing the angular resolution achievement across multiple illumination paths rather than relying on higher pixel density.
Solution Approach 2:
The patent transitions from a two-dimensional pixel grid to a three-dimensional light field by introducing angular dimension through multiple light sources positioned at different spatial locations. By illuminating the spatial light modulator from multiple angles (first angle and second angle), the system creates multiple views without compromising the two-dimensional spatial resolution of the display panel.
2Measurement precision
If multiple views are generated using traditional methods, then angular resolution is improved, but spatial resolution is compromised
Solution Approach 1:
The patent employs time-sequential activation of multiple light sources to dynamically generate multiple views. The first light source is activated during a first time period to generate a first view, and the second light source is activated during a second time period to generate a second view. This dynamic temporal multiplexing allows multiple angular views to be generated without requiring static increases in pixel density, thereby maintaining spatial resolution.
Solution Approach 2:
The system uses periodic alternation between different light sources to generate multiple views. By periodically switching between the first light source and the second light source, the system creates a sequence of views that provide angular resolution while maintaining the spatial resolution of the underlying display panel through consistent pixel utilization.
3Manufacturing precision
If time-sequential activation of light sources is used, then multiple views with full spatial resolution are achieved, but temporal resolution may be affected
Solution Approach 1:
The patent maintains continuous useful action by ensuring that during each time period when a light source is active, the spatial light modulator continuously generates the corresponding view. The first view is generated continuously during the first time period using the first light source, and the second view is generated continuously during the second time period using the second light source. This continuous generation minimizes temporal artifacts while achieving full spatial resolution for each view.
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 improved angular resolution of 3D content without sacrificing spatial resolution, allowing for sharper images and a more natural look-around effect for the viewer.
Implementation Method 1
a first light source configured to emit a first light at a first angle during a first time period and a second light source configured to emit a second light at a second angle during a second time period
Implementation Method 2
a spatial light modulator configured to provide a first view of digital content based on the first angle of the first light emitted during the first time period and a second view of the digital content based on the second angle of the second light emitted during the second time period
Implementation Method 3
projection optics configured to project the first view and the second view for presentation via the screen
Data Source
AI summary
An example device includes a screen, a first light source configured to emit a first light at a first angle during a first time period and a second light source configured to emit a second light at a second angle during a second time period. The second angle is different than the first angle. The second time period is different than the first time period. The device includes a spatial light modulator configured to provide a first view of digital content based on the first angle of the first light emitted during the first time period and a second view of the digital content based on the second angle of the second light emitted during the second time period and projection optics configured to project the first view and the second view for presentation via the screen.