Display Device Opening Portion Uniform Pixel Alignment

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Solution Overview

Problem

Existing display devices with dual-domain structures and varying pixel sizes or spacers in 3D imaging systems often suffer from issues like streaks, cross talk, and Moire patterns due to differing viewing angle characteristics among pixels, leading to suboptimal image quality.

Innovation Solution

A display device design featuring a display portion with pixels of different optical characteristics, where an opening portion is strategically placed to ensure that pixels with the same color or optical characteristics are aligned to prevent the generation of viewing angle characteristics, thereby minimizing issues like streaks and Moire patterns.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a dual-domain structure with varying pixel sizes or spacers is used to achieve wide viewing angle, then viewing angle is improved, but streaks, cross talk, and Moire patterns are generated due to differing viewing angle characteristics among pixels

Engineering Contradiction:
Improveviewing angleVSAvoidstreaks, cross talk, and Moire patterns
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by making pixels within the same opening portion have identical optical characteristics (same color and same viewing angle properties). This is achieved by configuring the display portion such that pixels corresponding to the same opening portion are arranged to have the same color, and by ensuring that the optical characteristics (including viewing angle) are uniform within each opening portion. This local uniformity prevents the generation of streaks, cross talk, and Moire patterns while maintaining wide viewing angle through the overall opening portion structure.

Inventive Principle:
Principle #3Local quality

2Adaptability or versatility

If barrier system or lens system is applied to provide 3D image with dual-domain structure, then stereoscopic display is achieved, but viewing angle characteristics are generated leading to image quality deterioration

Engineering Contradiction:
Improvestereoscopic display capabilityVSAvoidviewing angle characteristics
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies preliminary action by pre-configuring the display portion such that pixels corresponding to the same opening portion have the same color and identical optical characteristics before the barrier system or lens system is applied. This preliminary uniformity configuration ensures that when 3D imaging is performed, all pixels contributing to the same viewpoint have consistent optical properties, thereby preventing the generation of viewing angle characteristics that would otherwise cause image quality deterioration in stereoscopic display.

Inventive Principle:
Principle #10Preliminary action

3Illumination intensity

If pixels with different optical characteristics are arranged to achieve high pixel aperture ratio, then brightness is improved, but color biasing and picture coloring occur in 3D image

Engineering Contradiction:
ImprovebrightnessVSAvoidcolor biasing and picture coloring
Core Design Contradiction:
Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by ensuring uniform color distribution within each opening portion. Specifically, pixels corresponding to the same opening portion are configured to have the same color, creating local color uniformity. This approach maintains high pixel aperture ratio for brightness while preventing color biasing and picture coloring in 3D images, as the uniform color assignment within each opening portion eliminates the color variation that would otherwise be magnified by the 3D imaging system.

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

This configuration effectively suppresses the deterioration of optical characteristics such as streaks, cross talk, and Moire, resulting in improved image quality for stereoscopic and multi-view displays by ensuring that pixels with the same color or optical characteristics are uniformly presented to the viewer.

Implementation Method 1

an opening portion which is arranged to face a display surface side of the display portion, and which allows light from the display portion to pass therein in a predetermined direction

Methodology Applied
Scientific EffectLight transmission and optical path control: Light

Data Source

PatentUS9097901B2Display device
Publication Date: 2015.08.04 MAGNOLIA WHITE CORP
  • US9097901B2 patent drawing
  • US9097901B2 patent drawing
  • US9097901B2 patent drawing

AI summary

A display device includes a display portion and an opening portion. In the display portion, pixels having different optical characteristics are arranged. The opening portion is arranged so as to face a display surface side of the display portion and causes a light from the display portion to pass in a predetermined direction. With respect to the pixels having the different optical characteristics in the display portion, the pixels having the same color are located in the opening portion.