Dynamic Barrier Panel for Variable Viewing 3D Displays

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Solution Overview

Problem

Conventional non-glasses type stereoscopic image display devices fail to realize stereoscopic images on the entire display panel when the viewer's viewing location varies, due to fixed light-transmitting and light-blocking areas on the barrier panel.

Innovation Solution

The image display apparatus dynamically adjusts the locations of light-transmitting and light-blocking areas on a pixel-by-pixel basis using a barrier panel split into multiple areas, with electrode lines and signal supply lines grouped to correct these areas based on viewer location information, ensuring stereoscopic images are displayed across the entire panel regardless of viewing position.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the light-transmitting areas and light-blocking areas are fixedly formed on the barrier panel, then the device structure is simple and easy to manufacture, but the stereoscopic images cannot be realized when the viewing location of the viewer is varied

Engineering Contradiction:
Improveease of manufactureVSAvoidadaptability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The barrier panel is divided into multiple regions, each capable of independently adjusting the positions of light-transmitting and light-blocking areas. This dynamic adjustment allows the display to adapt to different viewing locations while maintaining manufacturing simplicity through modular region-based control

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The barrier panel is segmented into multiple regions that can be controlled independently. Each region can adjust its light-transmitting and light-blocking patterns separately, enabling adaptation to varying viewer positions without redesigning the entire panel

Inventive Principle:
Principle #1Segmentation

2Device complexity

If the light-transmitting areas and light-blocking areas are fixedly formed on the barrier panel, then the device complexity is low, but the stereoscopic image quality deteriorates when viewing location varies

Engineering Contradiction:
Improvedevice complexityVSAvoidreliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The system introduces dynamic adjustability in light-transmitting and light-blocking area positions within each region. This allows the display to maintain reliable stereoscopic image quality across different viewing locations while keeping the overall device structure relatively simple through regional modulation

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If the barrier panel is divided into multiple areas with independent adjustment, then the adaptability to viewing locations is improved, but the device complexity increases

Engineering Contradiction:
ImproveadaptabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The barrier panel is divided into multiple regions that can be controlled independently. Each region can adjust its light-transmitting and light-blocking patterns separately, enabling adaptation to varying viewer positions without redesigning the entire panel

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system adjusts parameters such as the positions and dimensions of light-transmitting and light-blocking areas within each region. By modifying these geometric parameters dynamically, the system achieves high adaptability to different viewing locations while managing device complexity through localized parameter adjustment rather than structural redesign

Inventive Principle:
Principle #35Parameter changes

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

This solution enables the realization of stereoscopic images on the entire display panel even with varying viewer positions, minimizing 3D crosstalk and improving display quality by dynamically adjusting the light-transmitting and light-blocking areas.

Implementation Method 1

a barrier panel 20 formed to have light-transmitting areas 22 and light-blocking areas 24, which are repeatedly arranged

Methodology Applied
Scientific EffectLight transmission and blocking: Absorption (EM radiation)

Data Source

PatentUS9900587B2Image display apparatus
Publication Date: 2018.02.20 LG DISPLAY CO LTD
  • US9900587B2 patent drawing
  • US9900587B2 patent drawing
  • US9900587B2 patent drawing

AI summary

An image display apparatus splits a barrier panel, which forms a plurality of light-transmitting areas and a plurality of light-blocking areas on each pixel, into a plurality of areas, and individually correcting locations of the light-transmitting areas and the light-blocking areas on the basis of viewing location information of a viewer with respect to a display panel, thereby realizing a stereoscopic image on an entire area of the display panel even if the viewing location of the viewer is varied.