Static Multiview Display With Horizontal Diffuser and Diffraction Gratings
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Solution Overview
Problem
Existing electronic displays struggle to effectively provide static or quasi-static multiview images with precise control over directional light beams for multiple views, lacking efficient methods to guide and diffract light for optimal image representation.
Innovation Solution
A multiview display system utilizing a directional light source and horizontal diffuser to provide collimated light to a light guide, combined with diffraction gratings that scatter light at predetermined angles to create static or quasi-static multiview images, ensuring correspondence between light directions and view pixels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If diffractive gratings are used to diffractively scatter light from guided light beams, then static multiview images can be provided with precise control over light directions, but the device complexity increases due to the need for multiple gratings and light guide structures
Solution Approach 1:
The display device is segmented into multiple functional components: a light guide divided into multiple regions, each region containing multiple diffraction gratings with specific orientations. This segmentation allows independent control of light beams for different view directions, achieving precise directional control while managing complexity through modular design
Solution Approach 2:
Different regions of the light guide are assigned different local qualities: each region has diffraction gratings with specific orientations tailored to that region's viewing requirements. This local optimization enables precise control over light scattering angles for each viewing zone without requiring the entire system to be overly complex
2Illumination intensity
If multiple guided light beams with different radial directions are provided, then high-quality multiview images with precise light control are achieved, but the manufacturing precision requirements increase
Solution Approach 1:
The system performs preliminary action by pre-configuring the orientations of diffraction gratings in each light guide region before operation. The gratings are predetermined with specific angles to scatter light in required directions, eliminating the need for complex real-time adjustments and reducing manufacturing precision requirements during assembly
Solution Approach 2:
The invention utilizes parameter changes by varying the orientation angles of diffraction gratings across different regions of the light guide. This systematic variation of the grating orientation parameter enables control over light scattering directions, achieving high-quality multiview images through controlled parameter changes rather than complex manufacturing tolerances
3Measurement precision
If diffraction gratings scatter light at predetermined angles, then correspondence between light directions and view pixels is improved, but the device complexity increases due to additional optical components
Solution Approach 1:
The invention merges the functions of light guiding, light scattering, and view pixel correspondence into a single integrated structure. The light guide regions and diffraction gratings are combined such that each region's gratings simultaneously guide light from the light source and scatter it at predetermined angles corresponding to specific view pixels, reducing the need for separate optical components
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
Enables the display of high-quality static or quasi-static multiview images with precise control over light intensities and directions, enhancing the representation of 3D content with minimal spurious reflections.
Implementation Method 1
provide collimated light to a light guide
Implementation Method 2
horizontal diffuser to provide collimated light
Implementation Method 3
diffraction gratings that scatter light at predetermined angles
Implementation Method 4
diffractively scatter light from guided light beams
Implementation Method 5
light guide configured to guide plurality of guided light beams
Data Source
Figure 1A~1B
Figure 2~3A
Figure 3B~3C
AI summary
A static multiview display and method of static multiview display operation provide a static multiview image using diffractive gratings to diffractively scatter light from guided light beams having different radial directions provided by a horizontal diffuser. The static multiview display includes a light guide configured to guide the light beams; the horizontal diffuser configured to provide the guided light beams with the different radial directions using light from a directional light source; and a plurality of diffraction gratings configured to scatter out light from the guided light beam plurality as directional light beams representing the static multiview image. The method of static display operation includes providing and diffusing directional light to provide guided light beams having different radial directions, and further scattering out light from the guided light beam as directional light beams representing the static multiview image.