3D Display Lenticular Lens Light-Blocking Patterns

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Solution Overview

Problem

Conventional 3D display apparatuses with lenticular lenses face challenges in preventing repeated images when the display panel is curved, and they suffer from luminance degradation due to the viewing angle control film.

Innovation Solution

A 3D display apparatus is designed with a display panel featuring pixel regions, light-blocking patterns, and lenticular lenses, where the light-blocking patterns overlap the boundary of the lenticular lenses, and a viewing angle control film with transparent elements and patterns is used to minimize luminance degradation and prevent repeated images by controlling the light angle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a viewing angle control film is used to block light in outward direction, then repeated image generation is prevented, but luminance degradation occurs

Engineering Contradiction:
Improveprevention of repeated imageVSAvoidluminance
Core Design Contradiction:
ReliabilityVSIllumination intensity

Solution Approach 1:

The patent extracts the light-blocking function from a separate viewing angle control film and integrates it into the lenticular lens structure itself through light-blocking patterns formed on the display panel. This eliminates the need for an additional film layer, thereby preventing luminance degradation while maintaining the repeated image prevention function.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent combines multiple functions into the lenticular lens structure: the lenticular lenses provide 3D display functionality, while integrated light-blocking patterns prevent repeated images. This merging eliminates the need for separate viewing angle control films and reduces overall system complexity.

Inventive Principle:
Principle #5Merging (Combining)

2Device complexity

If only a viewing angle control film is used, then the structure remains simple, but repeated image cannot be prevented when display panel is curved

Engineering Contradiction:
Improvestructure simplicityVSAvoidprevention of repeated image
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent merges the light-blocking function directly into the lenticular lens structure through integrated light-blocking patterns on the display panel. This combination maintains structural simplicity while ensuring reliable repeated image prevention even when the display panel is curved, as the light-blocking patterns move with the panel curvature.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent adds light-blocking patterns in a new dimensional arrangement on the display panel that work in conjunction with the lenticular lenses. This additional dimensional element provides robust repeated image prevention that remains effective regardless of panel curvature.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Reliability

If light-blocking patterns are added to overlap lenticular lens boundaries, then repeated image is prevented, but device complexity increases

Engineering Contradiction:
Improveprevention of repeated imageVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the light-blocking patterns directly into the display panel structure that already contains the lenticular lenses. By forming these patterns on the same substrate during the manufacturing process, the additional functional element is integrated without significantly increasing overall device complexity.

Inventive Principle:
Principle #5Merging (Combining)

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 solution effectively prevents the generation of repeated images and reduces luminance degradation, enhancing the quality of the 3D image provided to the user, even when the display panel is curved.

Implementation Method 1

The 3D display apparatus may realize the 3D image provided to the user by superimposing light emitted from each pixel region of the display panel in a set region using the lenticular lenses

Methodology Applied
Scientific EffectRefraction: Refraction

Implementation Method 2

The viewing angle control film may block light emitting in an outward direction of the set region by the lenticular lenses to prevent the generation of a repeated image at the outside of the set region

Methodology Applied
Scientific EffectLight blocking: Absorption (EM radiation)

Data Source

PatentUS11336885B23D display apparatus having lenticular lenses
Publication Date: 2022.05.17 LG DISPLAY CO LTD
  • US11336885B2 patent drawing
  • US11336885B2 patent drawing
  • US11336885B2 patent drawing

AI summary

A 3D display apparatus including lenticular lenses is provided. The lenticular lenses may be disposed between a display panel and a viewing angle control film. A direction in which the lenticular lenses extend may be inclined with a direction in which pixel regions of the display panel are arranged. The display panel may include light-blocking patterns overlapping with a boundary of the lenticular lenses. Thus, in the 3D display apparatus, the quality of the image provided to the user may be improved.