Tiled Display Edge Pixels Using Inorganic Emitters for Visibility
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Solution Overview
Problem
Conventional tiled display devices face challenges in maintaining high visibility and productivity due to difficulties in forming sub-pixel structures in edge areas, which often results in impaired visibility and increased process costs.
Innovation Solution
The tiled display device incorporates inorganic light emitting elements with quantum-dot color conversion layers in edge areas and organic or LCD light sources in inner areas, with specific spacing and layer configurations to enhance visibility and reduce process costs, using a combination of inorganic and organic materials to achieve high-resolution images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If inorganic light emitting elements are used in edge areas, then external visibility is improved, but device complexity increases
Solution Approach 1:
The patent applies different light emitting element types in different spatial zones: inorganic light emitting elements are specifically deployed in edge areas (second display areas) to enhance external visibility, while inner areas use other light emitting elements. This local differentiation resolves the contradiction by applying the complex, high-performance material only where it provides the most value.
Solution Approach 2:
The display device is segmented into multiple display areas (first display areas for inner regions, second display areas for edge regions) with different sub-pixel configurations. This segmentation allows the system to optimize each zone independently, using inorganic elements only in edge areas where external visibility is compromised by adjacent display devices.
2Manufacturing precision
If inorganic light emitting elements are used in edge areas, then manufacturing precision is improved, but ease of manufacture deteriorates
Solution Approach 1:
The patent implements local quality by configuring inorganic light emitting elements with quantum-dot color conversion layers specifically in edge areas where high manufacturing precision is critical for maintaining image quality, while using other light emitting elements in inner areas where manufacturing is easier but precision requirements are lower.
3Manufacturing precision
If quantum-dot color conversion layers are added, then display quality is improved, but device complexity increases
Solution Approach 1:
Quantum-dot color conversion layers are selectively applied only to inorganic light emitting elements in edge areas, not throughout the entire display. This localized application improves display quality where it matters most (edges visible from outside) while minimizing the increase in device complexity.
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 improves external visibility by reducing the risk of impaired image quality at edges and lowers processing costs by utilizing inorganic materials efficiently in edge areas, while maintaining high display quality and resolution.
Implementation Method 1
an element color conversion layer including a quantum-dot
Implementation Method 2
The edge sub-pixels may include an inorganic light emitting element comprising an inorganic material
Data Source
AI summary
A tiled display device includes display devices comprising a first display device and a second display device adjacent to each other, each including a display area including a first display area and a second display area. The first display area includes at least a portion of an inner area of the display area, and the second display area includes at least a portion of an edge area of the display area. Each of the display devices includes inner sub-pixels disposed on a base layer in the first display area, and edge sub-pixels disposed on the base layer in the second display area. The edge sub-pixels include an inorganic light emitting element comprising an inorganic material, and the inner sub-pixels include a light source different from the inorganic light emitting element.