3D Spatial Light Field Intersection for Autostereoscopic Display
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Solution Overview
Problem
Existing autostereoscopic display technologies face limitations such as narrow viewing angle, low image quality, crosstalk, and shallow image depth, which hinder their wider commercial use and practical applications.
Innovation Solution
A system and method for displaying 3D images by generating multiple light signals that intersect at specific positions in space, allowing each pixel to be displayed at a position where the paths or extensions of at least two light signals intersect, leveraging the persistence of human vision to create a 3D image with depths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional autostereoscopic display techniques are used, then 3D images can be displayed without glasses, but the viewing angle is narrow and image quality is low
Solution Approach 1:
The patent transitions from 2D display surfaces to 3D spatial light field manipulation by projecting light signals along multiple paths that intersect in space, creating true volumetric depth perception and expanding the viewing angle through spatial distribution of light rays
2Reliability
If conventional autostereoscopic display techniques are used, then glasses-free 3D is achieved, but crosstalk occurs and image depth is shallow
Solution Approach 1:
The patent segments the light field into multiple distinct paths corresponding to different depth planes, with each path carrying specific depth information. This segmentation allows the human visual system to perceive distinct depth layers without crosstalk between them
Solution Approach 2:
The patent introduces an intermediate light field structure that mediates between the display source and the viewer's eyes, creating virtual images at different depths through controlled light path intersections, thereby enabling genuine depth perception without crosstalk
3Manufacturing precision
If MEMS mirror array is used to display high-resolution 3D image, then image quality improves, but the system becomes bulky and costly
Solution Approach 1:
The patent extracts the essential function of light direction control from complex MEMS mirror arrays and implements it through simpler optical elements and light path design, maintaining high-resolution 3D display capability while eliminating the need for bulky MEMS mirror arrays
Solution Approach 2:
The patent creates virtual copies of light paths through optical projection, allowing multiple light signals to intersect in space to form high-resolution 3D images without requiring physical arrays of mirrors for each pixel
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 simplifies the structure, reduces the size, and lowers the cost of 3D image display systems while providing improved image quality and depth perception, enabling more practical and commercially viable applications.
Implementation Method 1
generating multiple light signals to be reflected and projected to a position in space by which paths or extensions of the paths of the at least two light signals sequentially generated at different time intersect
Implementation Method 2
leveraging the persistence of human vision to create a 3D image with depths
Data Source
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AI summary
A system and method for displaying a 3D image with depths, which utilize at least one light signal generator to sequentially generate multiple light signals(S100) and at least one optical assembly to receive the multiple light signals from the at least one light signal generator, and project and scan the multiple light signals within a predetermined time period to display the 3D image in space(S200). Each pixel of the 3D image is displayed at a position by at least two of the multiple light signals to a viewer's eye, paths or extensions of the paths of the at least two light signals intersects at the position and at an angle associated with a depth of the pixel, and the predetermined time period is one eighteenth of a second. Accordingly, the advantages of simplified structure, a miniatured size, and a less costly building cost can be ensured.