Lenticular Lens Display Panel Sub-pixel Arrangement for Multi-viewpoint Resolution
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Solution Overview
Problem
Conventional three-dimensional image display devices reduce the resolution of images when viewed from multiple viewpoints, particularly when displaying three-dimensional images, leading to decreased visibility and resolution issues, especially when character information is involved.
Innovation Solution
An image display device with a display panel and a lenticular lens that arranges sub-pixels in a square area, allowing images to be viewed from multiple viewpoints without reducing resolution, enabling equal resolution for both three-dimensional and two-dimensional images and allowing blended display of both types of images at any location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a parallax barrier is used to display three-dimensional images from multiple viewpoints, then the capability to display images with parallax is improved, but the resolution of the displayed images deteriorates
Solution Approach 1:
The display panel is divided into multiple sub-pixels (first sub-pixel and second sub-pixel) within each pixel unit, with each sub-pixel dedicated to a specific viewpoint. This segmentation allows independent control of light emission for different viewpoints while maintaining full resolution for each viewpoint's image content.
Solution Approach 2:
Different sub-pixels within the same pixel unit have different emission characteristics optimized for specific viewpoints. The first sub-pixel emits light primarily toward the first viewpoint, while the second sub-pixel emits light primarily toward the second viewpoint, creating local quality differences that enable multi-viewpoint display without resolution loss.
2Adaptability or versatility
If conventional multi-viewpoint display methods are used, then the ability to display from multiple viewpoints is improved, but the visibility and resolution of character information deteriorates
Solution Approach 1:
Each pixel is segmented into multiple sub-pixels, with each sub-pixel dedicated to a specific viewpoint. This ensures that character information displayed for each viewpoint maintains full resolution and visibility, as each sub-pixel contributes to the complete image quality for its designated viewpoint rather than sharing pixels across viewpoints.
3Device complexity
If sub-pixels are arranged in conventional patterns, then the display structure is simplified, but the ability to maintain equal resolution for both three-dimensional and two-dimensional images deteriorates
Solution Approach 1:
The sub-pixels within each pixel are arranged in an asymmetric configuration where the first sub-pixel and second sub-pixel have different spatial positions and emission directions. This asymmetric arrangement within the symmetric pixel grid enables the system to maintain equal resolution for both 3D and 2D images by ensuring each viewpoint receives dedicated high-resolution information from its corresponding sub-pixel.
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 maintains high visibility and resolution for both three-dimensional and two-dimensional images, preventing the reduction in image quality and enhancing the display of characters, even when viewed from different angles.
Implementation Method 1
a lenticular lens 3 for distributing light rays from the sub-pixels 41, 42 individually to the viewpoint for left eye EL and the viewpoint for right eye ER
Data Source
AI summary
A three-dimensional image/two-dimensional image display device includes a plurality of display pixels, and a lenticular lens for three-dimensional display. Each display pixel is consisted of M×N number of sub-pixels to be viewed from N view points. A pitch a of sub-pixels arranged in the longitudinal direction of ridge projection of the lenticular lens and a pitch b of the sub-pixels arranged in a direction orthogonal to the longitudinal direction of the lenticular lens satisfy the following expression. The M×N number of sub-pixels included in each of said display pixels are formed within a square area.a:b=N:1