Spliced Display L-Shaped Pixel Layout for Uniform Color
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Solution Overview
Problem
Spliced displays suffer from issues such as uneven color distribution, color deviation, and insufficient brightness at splicing locations, leading to visible black or yellow lines that negatively impact the viewing experience.
Innovation Solution
The display device employs light emitting units with L-shaped pixels arranged in a centrally symmetrical manner, where the pixels on adjacent units are rotated 180 degrees relative to each other, ensuring full mixing of light beams and reducing the risk of breakage during cutting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If light emitting units are spliced together to form large-sized displays, then the display size is increased, but color deviation and visible splicing lines occur at the splicing locations
Solution Approach 1:
The patent applies asymmetry by using L-shaped pixel arrangements instead of conventional rectangular patterns. The L-shaped pixels are configured with different orientations in adjacent light emitting units, creating an asymmetric pattern that prevents regular alignment of splicing lines and promotes light mixing across the splicing locations, thereby reducing visible seams and color deviation while maintaining large display size.
2Device complexity
If conventional rectangular pixel arrangements are used, then the pixel structure is simple, but pixels at the edges of light emitting units are prone to breakage during cutting
Solution Approach 1:
The patent uses L-shaped pixel structures instead of rectangular ones. The L-shape creates rounded corner effects at the pixel edges, which distribute stress more evenly during the cutting process. This curved-like geometry at the pixel corners reduces stress concentration points, making the pixels more resistant to breakage while maintaining manufacturing feasibility.
3Ease of manufacture
If pixels are arranged in a regular pattern, then the manufacturing process is straightforward, but splicing locations exhibit uneven color distribution and insufficient brightness
Solution Approach 1:
The patent implements asymmetry in pixel orientation between adjacent light emitting units. By rotating the L-shaped pixels at splicing locations to different orientations, the light emission patterns become asymmetric, which promotes better light mixing across the splicing boundaries. This asymmetric arrangement ensures more uniform brightness and color distribution at the splicing locations while maintaining overall manufacturing simplicity.
Data Source
AI summary
A display device including multiple light emitting units arranged adjacent to each other is provided. The light emitting unit includes multiple pixels. Each of the pixels includes multiple sub-pixels, and the sub-pixels are arranged in an L shape. Both sides of the pixel are substantially parallel to both sides of the light emitting unit. The light emitting units include a first light emitting unit and a second light emitting unit that are adjacent to each other. The first light emitting unit has multiple first pixels and the second light emitting unit has multiple second pixels. The first pixels and the second pixels are centrally symmetrical.