Foldable Display Plate Aperture Layout for Image Uniformity
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Solution Overview
Problem
Existing flexible display apparatuses suffer from image quality distortion, visibility issues, and aperture pattern observation in deformable and non-deformable areas, particularly in folding or bendable regions.
Innovation Solution
A display apparatus design with a deformable area featuring a folding axis and non-deformable areas, incorporating aperture patterns with varying intervals to minimize image quality distortion and improve visibility, while using materials like polyimide and silicon nitride to prevent moisture penetration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If aperture patterns are arranged with uniform intervals in the deformable area, then the structure is simple and easy to manufacture, but image quality distortion occurs when the display is unfolded
Solution Approach 1:
The patent applies different aperture pattern intervals in different regions of the deformable area. Specifically, the first interval is used in a first region and the second interval (different from the first) is used in a second region. This local differentiation resolves the contradiction by adapting the aperture spacing to local deformation characteristics, thereby maintaining image quality uniformity while keeping the overall structure relatively simple.
2Adaptability or versatility
If the display apparatus uses a flexible deformable structure for folding, then portability is improved, but aperture patterns become visible and image quality distortion occurs
Solution Approach 1:
The patent differentiates aperture pattern intervals between the deformable area (where folding occurs) and the non-deformable area. In the deformable area, specific intervals are designed to accommodate folding motion while minimizing aperture visibility and image distortion. This local adaptation allows the display to maintain both folding capability and image quality consistency.
3Illumination intensity
If aperture patterns are placed closely together to improve visibility, then boundary visibility between regions improves, but aperture patterns become more observable causing image quality issues
Solution Approach 1:
The patent uses different aperture intervals in different regions to balance boundary visibility and aperture pattern observability. By carefully selecting the first and second intervals for different regions, the design enhances boundary visibility where needed while maintaining aperture spacing that prevents excessive pattern observability, thus resolving the contradiction.
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 design reduces image quality distortion and enhances visibility by adjusting aperture pattern intervals and using moisture-resistant materials, ensuring long lifetime and low power consumption.
Implementation Method 1
using materials like polyimide and silicon nitride to prevent moisture penetration
Data Source
AI summary
A display apparatus includes a display panel and at least one plate under the display panel. The at least one plate includes a folding axis defined at the middle portion of the plate, a variable area including the folding axis and a non-variable area disposed at both sides of the variable area. The variable area includes a first area including the folding axis, a first link area disposed at both sides of the first area, and a second area disposed at both sides of the first area with the first link area therebetween. The non-variable area includes a second link area connected to the second area and a third area connected to the second link area. The at least one plate includes at least one opening pattern disposed in the variable area, having a length parallel to the folding axis and a width perpendicular to the folding axis, and being spaced at a predetermined gap.