Autostereoscopic 3D Display with Beam Splitter for Augmented Reality

Solution Overview

Problem

Autostereoscopic 3D display methods cannot effectively implement augmented reality as they do not allow viewers to see objects behind the display screen, which is necessary for services like augmented reality that require interaction with real-world objects.

Innovation Solution

An autostereoscopic 3D display apparatus that combines a 3D image display unit with an optical unit using beam splitters to reflect or transmit 3D virtual objects and real objects, enabling viewers to see both simultaneously, with configurations that include low-definition autostereoscopic panels and high-definition transparent 2D panels to enhance visibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If an autostereoscopic 3D display method is used to provide 3D images, then binocular disparity and 3D effect are achieved, but the real object behind the display panel cannot be seen

Engineering Contradiction:

Improve3D image qualityVSAvoidaugmented reality capability

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The display panel is divided into transparent regions and opaque regions. The transparent regions allow real objects behind the display to be seen, while the opaque regions display 3D virtual objects. This segmentation enables both 3D imaging and augmented reality functionality to coexist in the same display system.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the display panel have different optical properties. Some areas are made transparent to permit viewing of real objects, while other areas maintain opacity for displaying virtual 3D content. This local differentiation of optical quality resolves the contradiction between 3D display and augmented reality requirements.

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If a transparent display panel is used to see real objects, then augmented reality is enabled, but 3D image quality and depth perception are reduced

Engineering Contradiction:

Improveaugmented reality capabilityVSAvoid3D image quality

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The display panel is divided into transparent regions and opaque regions. The transparent regions allow real objects behind the display to be seen, while the opaque regions display 3D virtual objects. This segmentation enables both 3D imaging and augmented reality functionality to coexist in the same display system.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the display panel have different optical properties. Some areas are made transparent to permit viewing of real objects, while other areas maintain opacity for displaying virtual 3D content. This local differentiation of optical quality resolves the contradiction between 3D display and augmented reality requirements.

Inventive Principle:

Principle #3Local quality

3Loss of information

If text is displayed in augmented reality, then information is provided, but text recognition is difficult due to low visibility

Engineering Contradiction:

Improveinformation deliveryVSAvoidtext visibility

Core Design Contradiction:

Loss of informationVSDifficulty of detecting and measuring

Solution Approach 1:

The text display region uses a locally optimized transparent region with enhanced optical properties to improve text visibility. The local quality of this region is specifically tuned to maximize both transparency for seeing real objects and visibility for reading text, resolving the contradiction between information delivery and detection difficulty.

Inventive Principle:

Principle #3Local quality

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 implementation of augmented reality by allowing viewers to perceive a combination of 3D virtual objects and real objects, improving visibility and recognition of text within the augmented reality environment.

Implementation Method 1

an optical unit configured to reflect or transmit the displayed 3D image from the image display unit toward a viewer

Methodology Applied

Scientific EffectReflection: Reflection

Implementation Method 2

transmit an image of a real object facing the viewer

Methodology Applied

Scientific EffectTransmittance: Refraction

Data Source

PatentUS10129537B2Autostereoscopic 3D display apparatus

Publication Date: 2018.11.13 KOREA ELECTRONICS TECH INST

AI summary

An autostereoscopic three-dimensional (3D) display apparatus is provided. The autostereoscopic 3D display apparatus includes an image display unit configured to display a 3D image including a 3D virtual object or a 3D image including a 3D virtual object and text; and an optical unit configured to reflect or transmit the displayed 3D image from the image display unit toward a viewer, transmit an image of a real object facing the viewer, and display a combination of the 3D image and the image of the real object to the viewer.