Portable Air Floating Display With Movable Retroreflector

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Solution Overview

Problem

Existing technologies do not address the configuration and portability of air floating video display systems, lacking a technique for achieving a portable system that efficiently displays videos as air floating images.

Innovation Solution

A portable air floating video display system is achieved through a housing containing a display panel and light source, connected to a power supply via joints, and a frame structure holding a retroreflector movably joined with the housing, utilizing transmission- and reflection-type retroreflectors to form air floating images with low power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conventional air floating video display system is used, then video display function is achieved, but portability is not realized due to fixed configuration

Engineering Contradiction:
ImproveportabilityVSAvoidsystem configuration
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The display system is divided into separable components: a housing containing the display panel and light source, a power supply unit, and a retroreflector assembly. These modules can be connected and disconnected, enabling portable operation while maintaining system functionality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The retroreflector is configured to be movable relative to the housing through a joint mechanism, allowing dynamic adjustment of the air floating image position and size. This dynamic capability enables portability without sacrificing display performance.

Inventive Principle:
Principle #15Dynamics

2Measurement precision

If high resolution air floating image is displayed, then image quality is improved, but power consumption increases

Engineering Contradiction:
Improveimage resolutionVSAvoidpower consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The system replaces conventional high-power projection mechanisms with a low-power light source combined with a retroreflector. The retroreflector passively redirects light to form the air floating image, eliminating the need for high-energy projection optics while maintaining high resolution.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The invention changes the optical parameters by using a retroreflector with specific geometric configurations (corner cube or prism types) that efficiently redirect light at desired angles. This parameter optimization allows high-resolution image formation with minimal power consumption from the light source.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If retroreflector is fixed in position, then structural simplicity is maintained, but image positioning flexibility is reduced

Engineering Contradiction:
Improveimage positioning flexibilityVSAvoidjoint mechanism
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The retroreflector assembly is joined to the housing through a joint mechanism that allows controlled movement. This dynamic configuration enables the retroreflector to be positioned at different angles and distances from the display panel, providing flexible image positioning while using a relatively simple joint structure.

Inventive Principle:
Principle #15Dynamics

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 a portable, low-power air floating video display capable of displaying high-resolution images above transparent surfaces, with improved image quality and reduced power consumption, suitable for in-vehicle use.

Implementation Method 1

a retroreflector configured to display an air image has been disclosed

Methodology Applied
Scientific EffectRetroreflection: Retroreflector

Implementation Method 2

a housing holding a display panel and a light source

Methodology Applied
Scientific EffectLight emission: Light

Data Source

PatentUS20250355271A1Portable air floating video display apparatus
Publication Date: 2025.11.20 MAXELL LTD
  • US20250355271A1 patent drawing
  • US20250355271A1 patent drawing
  • US20250355271A1 patent drawing

AI summary

A video is preferably displayed on outside of a space. The present invention contributes to “the third goal: Good Health and Well-being (for all people)”, “the ninth goal: Industry, Innovation and Infrastructure” and “the eleventh goal: Sustainable Cities and Communities” of the sustainable development goals. An air floating video display system includes: a housing holding a display panel and a light source; a power supply including a power source and being joined with the housing through a first joint; and a flame structure holding a retroreflector movably joined with the housing through a second joint.