Complex Light Modulator for Holographic Display Noise Reduction
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Solution Overview
Problem
Current 3D image display methods, such as glasses-type and holographic techniques, face limitations in viewpoint implementation and cause viewer fatigue due to binocular parallax discrepancies, while existing holographic display methods suffer from noise and resolution issues in generating high-quality holographic images.
Innovation Solution
A complex light modulator comprising a phase modulator and an amplitude modulator, configured to generate complex pixels with specific light modulation characteristics, including overlapping sub-complex pixels in a 3x3 format, to achieve high-resolution and low-noise holographic image reproduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional holographic display methods are used, then 3D image display is achieved, but noise and resolution issues occur in holographic image generation
Solution Approach 1:
The patent divides each complex pixel into multiple sub-complex pixels arranged in a 3x3 matrix pattern. This segmentation allows independent control of amplitude and phase for each sub-complex pixel, enabling precise manipulation of light modulation characteristics to reduce noise and improve resolution in the generated holographic image.
Solution Approach 2:
The patent assigns different light modulation characteristics to different sub-complex pixels within each complex pixel. By locally optimizing the amplitude and phase parameters of individual sub-complex pixels, the system achieves high-resolution holographic image generation while suppressing noise through differentiated local control rather than uniform modulation.
2Manufacturing precision
If complex pixels are divided into sub-complex pixels in a 3x3 format, then resolution is improved, but device complexity increases
Solution Approach 1:
The patent combines the amplitude modulation and phase modulation functions into a unified complex light modulator system. By merging these functions and using overlapping sub-complex pixels shared among adjacent complex pixels, the system achieves high resolution without proportionally increasing device complexity, as the same physical elements serve multiple functional roles.
Solution Approach 2:
The sub-complex pixels are designed to serve multiple functions: they contribute to both amplitude and phase modulation, and are shared among multiple adjacent complex pixels. This multi-functionality allows the system to achieve high-resolution holographic imaging without requiring separate dedicated elements for each function, thereby controlling device complexity.
3Object-generated harmful factors
If overlapping pixels are implemented in adjacent complex pixels, then noise is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent implements a nested structure where sub-complex pixels are organized within complex pixels, and overlapping sub-complex pixels are shared among multiple complex pixels. This nesting approach allows noise reduction through coherent integration of overlapping regions while maintaining a systematic fabrication process that follows a hierarchical pattern, reducing manufacturing complexity compared to non-nested designs.
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 enhances the resolution and reduces noise in holographic image generation, providing a wider viewing window and improved viewer experience by effectively managing zero-order and high-order noise, thus overcoming the limitations of existing methods.
Implementation Method 1
a phase modulator (130), and an amplitude modulator (110)
Implementation Method 2
a phase modulator (130), and an amplitude modulator (110)
Implementation Method 3
when light is radiated onto a hologram pattern having recorded thereon an interference pattern obtained by interference between object light reflected from an original object and reference light, the light is diffracted and an image of the original object is reproduced
Implementation Method 4
an interference pattern obtained by interference between object light reflected from an original object and reference light
Data Source
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AI summary
Provided is a complex light modulator including a phase modulator, and an amplitude modulator, wherein the phase modulator and the amplitude modulator are configured to generate a first complex pixel having first complex light modulation characteristics and a second complex pixel having second complex light modulation characteristics, wherein the first complex pixel includes first sub-complex pixels that are provided in a 3x3 format and are configured to implement the first complex light modulation characteristics, wherein the second complex pixel includes second sub-complex pixels that are provided in a 3x3 format and are configured to implement the second complex light modulation characteristics, and wherein the first complex pixel and the second complex pixel respectively include a first overlapping pixel that is included in the first sub-complex pixels and the second sub-complex pixels.