Volumetric Display Panel Stacking for Natural 3D Occlusion

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Solution Overview

Problem

Conventional volumetric display technologies are impractical due to components like rotating screens, cesium vapor, and airborne plasma generation, and existing three-dimensional displays require additional accessories like polarized glasses, limiting their convenience and effectiveness.

Innovation Solution

A volumetric display system comprising self-luminous display panels and shutter panels, where each pixel of the shutter panel adjusts light transmittance individually to create natural overlapping and occlusion effects, using liquid crystal panels and polarizing plates to control light polarization and a controller to manage pixel openness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional volumetric display technologies are used, then three-dimensional image display is achieved, but the device complexity increases due to impractical components like rotating screens, cesium vapor, and airborne plasma generation

Engineering Contradiction:

Improvethree-dimensional image display capabilityVSAvoiddevice complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical rotating screen system with a static display panel system that uses electronic control of light transmittance. Instead of mechanically rotating screens to create volumetric images, the invention uses multiple static panels with controllable transmittance to achieve the same visual effect through electronic means, thereby eliminating complex mechanical components.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the operational parameters of the display system by controlling the transmittance of each pixel in the shutter panels dynamically. By adjusting transmittance parameters of individual pixels across multiple panels, the system creates volumetric three-dimensional images without requiring physical movement or complex components, achieving reliability through parameter control rather than mechanical complexity.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If glasses-based three-dimensional displays are used, then three-dimensional image display is achieved, but the ease of operation deteriorates due to the need for additional accessories like polarized glasses

Engineering Contradiction:

Improvethree-dimensional image display capabilityVSAvoidease of operation

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent extracts and eliminates the need for external accessories like polarized glasses by integrating the three-dimensional display functionality directly into the display system itself. The volumetric display creates three-dimensional images through the arrangement and control of multiple display panels, allowing viewers to perceive depth without requiring any additional equipment, thereby improving ease of operation.

Inventive Principle:

Principle #2Taking out (Extraction)

3Reliability

If conventional volumetric display technologies are used, then three-dimensional image display is achieved, but the manufacturing precision deteriorates due to impractical components

Engineering Contradiction:

Improvethree-dimensional image display capabilityVSAvoidmanufacturing precision

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The patent replaces impractical mechanical components like rotating screens and vapor generation systems with static display panels that can be manufactured using standard display manufacturing techniques. This substitution enables precise control over pixel positions and transmittance characteristics, significantly improving manufacturing precision while maintaining three-dimensional image display capability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 system enables natural overlapping and occlusion effects, allowing for more realistic three-dimensional image representation without the need for additional accessories, with improved manufacturing efficiency through roll-to-roll processes and easy panel stacking.

Implementation Method 1

Each pixel of the shutter panel adjusts light transmittance individually to create natural overlapping and occlusion effects

Methodology Applied

Scientific EffectLight transmittance control: Absorption (EM radiation)

Implementation Method 2

using liquid crystal panels and polarizing plates to control light polarization

Methodology Applied

Scientific EffectLight polarization: Polarisation

Data Source

PatentUS20250370274A1Volumetric display and head-mounted display having the same

Publication Date: 2025.12.04 CENT FOR ADVANCED META MATERIALS

AI summary

In a volumetric display and a head-mounted display having the volumetric display, the volumetric display includes a plurality of self-luminous display panels and a plurality of shutter panels. The display panels are configured to display an image forwardly, and are spaced apart from each other along a forward and backward direction. Each of the shutter panels is disposed between the self-luminous display panels adjacent to each other. A pixel of the self-luminous display panel corresponds to a pixel of the shutter panel. The shutter panel adjusts transmittance of a light emitted at a plurality of the pixels of the self-luminous display panel which is disposed at a rear side of the shutter panel, for each pixel.