Tile Display Device With Varying Pixel Densities
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Solution Overview
Problem
Large tile display devices composed of smaller panels often suffer from visible seams and joints, which detract from the overall visual quality due to differences in frame sizes and pixel densities, leading to an unsatisfactory seamless image experience.
Innovation Solution
A display device design featuring tile substrates with varying light emitting unit densities and pixel pitches across different portions, where the distance between light emitting units is adjusted to create a seamless visual effect by maintaining a specific ratio of pixel pitches and unit densities, ensuring a consistent pixel pitch across seams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple small display panels are tiled together to create large displays, then the display size is increased, but visible seams and joints appear that reduce visual quality
Solution Approach 1:
The patent applies local quality by implementing different pixel densities in different regions of the tile substrate. Specifically, a first pixel density is used in a first region and a second pixel density is used in a second region, allowing each area to be optimized for its specific function while maintaining overall visual coherence across the tiled display.
Solution Approach 2:
The patent changes the pixel density parameter across different regions of the display. By varying the pixel density from a first pixel density in the first region to a second pixel density in the second region, the system achieves seamless transitions across tile boundaries while maintaining high visual quality throughout the entire display area.
2Ease of manufacture
If uniform pixel density is used across all tile substrates, then manufacturing is simplified, but visible seams appear at the boundaries due to frame sizes
Solution Approach 1:
The patent implements local quality by assigning different pixel densities to different regions. The first region has a first pixel density while the second region has a second pixel density, allowing each region to be manufactured with specific optimizations while the overall pattern ensures seamless appearance across tile boundaries.
3Manufacturing precision
If higher pixel density is used across the entire display, then visual quality improves, but the complexity of maintaining consistent pixel pitch across seams increases
Solution Approach 1:
The patent manages parameter complexity by implementing a structured gradient of pixel densities across regions. This systematic approach to parameter variation allows high visual quality to be achieved while maintaining manageable complexity in ensuring consistent pixel pitch across seams through the defined regional structure.
Data Source
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Figure 2A
AI summary
A display device is provided. The display device includes a tile substrate. The substrate includes a first portion and a second portion. The first portion is closer to an edge of the substrate than the second portion. A plurality of light emitting units disposed on the first tile substrate. A unit density of light emitting units of the first portion is defined as a first unit density, a unit density of light emitting units of the second portion is defined as a second unit density, and the first unit density is greater than the second unit density.