Holographic Display Using Electromagnetic Field Computation
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Solution Overview
Problem
Current 3D display technologies face challenges in achieving compact, efficient, and high-quality optical systems for displaying 3D objects with fast computation speed and high refresh rates.
Innovation Solution
A computer-implemented method that involves manipulating data of primitives corresponding to 3D objects, associating vertex and primitive identifiers with vertex and primitive data, and storing these associations in memory. This method enables efficient processing and display of 3D objects by determining electromagnetic field contributions from each primitive to display elements and accumulating these contributions to generate holograms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional 3D display techniques are used, then holographic imagery can be simulated, but the optical systems become large and complex
Solution Approach 1:
The patent segments the 3D object into multiple geometric primitives (triangles, lines, points) and processes each primitive independently to calculate its electromagnetic field contribution. This segmentation allows for efficient parallel computation and enables compact optical system design while maintaining display quality through systematic reconstruction of the complete 3D scene from individual primitive contributions.
2Speed
If hybrid techniques with head and eye tracking are used, then stereo or in-eye light field can be simulated, but computation speed decreases
Solution Approach 1:
The patent replaces complex mechanical tracking and measurement systems with direct electromagnetic field computation based on geometric primitives. Instead of using head and eye tracking devices to simulate light fields, the system directly calculates electromagnetic field contributions from each primitive, substituting mechanical measurement approaches with mathematical field computation to achieve faster processing speeds.
Solution Approach 2:
The patent performs preliminary action by pre-defining and storing geometric primitive data (vertices, edges, faces) representing 3D objects before display generation. This pre-processing of geometric information allows for rapid electromagnetic field computation during actual display operations, as the fundamental object structure is already established and can be processed efficiently without real-time tracking overhead.
3Productivity
If conventional display devices are used, then 3D rendering can be achieved, but refresh rate and image quality are limited
Solution Approach 1:
The patent changes the fundamental parameter from rendering pixel intensities to computing electromagnetic field contributions. By calculating actual electromagnetic field values from geometric primitives and using these to modulate display element optical properties, the system achieves higher refresh rates through efficient field computation while improving image quality through physically accurate light field representation.
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
The solution enables compact and efficient optical systems for displaying 3D objects with high image quality, fast computation speed, and high refresh rates, effectively addressing the limitations of existing technologies.
Implementation Method 1
for each of a plurality of primitives, determining electromagnetic field contributions from the primitive to a plurality of display elements of the display
Data Source
AI summary
Methods, apparatus, devices, subsystems, and systems for holographically displaying three-dimensional objects are provided. A system includes a display and a controller. The display includes: a backplane having a plurality of circuits and a plurality of display elements arranged on the backplane. The plurality of display elements form an irregular pattern. Each of the plurality of display elements is coupled to a respective circuit of the plurality of circuits. The controller is coupled to the display and configured to transmit at least one control signal to at least one display element of the display for modulating at least one property of the at least one display element.