Autostereoscopic 3D Display with Slanted Lenticular Lens and Dynamic View-Map Selection

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Solution Overview

Problem

Lenticular lens type autostereoscopic 3D displays require a fixed optimum viewing position, limiting user convenience and flexibility, as images are not correctly rendered when the observer moves away from the predetermined viewing distance or position.

Innovation Solution

Incorporating a display panel with a lens film of slanted lenticular lenses, a position detector, and a memory-based view-map selector that adjusts the viewing angle based on the observer's distance, allowing for automatic adaptation of the 3D image presentation to ensure correct stereoscopic images are displayed regardless of the observer's location.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a fixed optimum viewing position is used in lenticular lens type 3D display, then the 3D image quality is maintained, but the user convenience and flexibility deteriorate

Engineering Contradiction:
Improve3D image qualityVSAvoiduser convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent implements dynamic adjustment of the view map based on the observer's position. The controller detects the observer's location and dynamically switches between different view maps (first view map for first position, second view map for second position) to maintain correct 3D image rendering at multiple viewing positions, transforming the static fixed-viewing-angle system into a dynamic multi-position adaptive system.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If multiple view maps are stored and selected based on observer position, then the adaptability to different viewing positions is improved, but the device complexity increases

Engineering Contradiction:
Improveviewing position adaptabilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent pre-calculates and stores multiple view maps corresponding to different observer positions in advance. The first view map and second view map are prepared beforehand for different viewing positions, eliminating the need for real-time complex calculations when the observer moves, thus reducing the computational burden and system complexity during operation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces a controller as an intermediary component that manages the selection and switching between different view maps. The controller acts as a mediator between the observer's position detection and the display panel, simplifying the overall system architecture by centralizing the view map management logic in a dedicated control unit.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 lenticular lens type autostereoscopic 3D display to provide consistent and correct 3D video images to the observer across various viewing positions and distances, enhancing user experience by eliminating the need for a fixed viewing position.

Implementation Method 1

a lens film disposed on a front surface of the display panel and including a plurality of lenticular lens

Methodology Applied
Scientific EffectRefraction: Refraction

Data Source

PatentUS11095872B2Autostereoscopic 3-dimensional display
Publication Date: 2021.08.17 LG DISPLAY CO LTD
  • US11095872B2 patent drawing
  • US11095872B2 patent drawing
  • US11095872B2 patent drawing

AI summary

An autostereoscopic three-dimensional (3D) display in which the multi view structure is configured by using the lenticular lens. The autostereoscopic 3D display can include a display panel including a plurality of pixels; a plurality of lenticular lens disposed on a front surface of the display panel and having a slanted axis; a position detector measuring the distance of an observer from the display panel; and a view-map selector selecting one of view-maps in accordance with the distance of the observer from the display panel.