Display Splicing Layout for Reduced Seam Visibility
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Solution Overview
Problem
Existing splicing devices exhibit a discontinuity of displayed images due to visible seams at certain viewing angles, particularly in large video walls and electronic devices with special angles.
Innovation Solution
A splicing device design that satisfies the formula (LA1+LB3+LB1x)^2 + (LA2+LB2+LB1y)^2 ≤ 1.5, where LA1, LB3, LB1x, LA2, LB2, and LB1y are defined distances and angles, to minimize the distance between adjacent light-emitting units, reducing the visibility of splicing seams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the distance between adjacent light-emitting units is reduced, then the visibility of splicing seams is reduced, but the manufacturing precision and alignment difficulty increase
Solution Approach 1:
The patent applies parameter changes by precisely controlling the distance between adjacent light-emitting units across different splicing units. The formula (LA1+LB3+LB1x)^2 + (LA2+LB2+LB1y)^2 ≤ 1.5 establishes specific parameter ranges for positioning light-emitting units, ensuring they are close enough to minimize seam visibility while remaining manufacturable. This parameter optimization directly addresses the contradiction by finding the optimal distance threshold that reduces harmful visual effects without exceeding manufacturing capabilities
Solution Approach 2:
The patent implements preliminary action through pre-designed reference planes and predetermined distance formulas that guide the positioning of light-emitting units before actual assembly. By establishing the positioning criteria (LA1, LB3, LB1x, LA2, LB2, LB1y) in advance and using reference planes for alignment, the system prepares the optimal configuration beforehand, reducing alignment difficulty during manufacturing while achieving the required precision for minimal seam visibility
2Stability of the object's composition
If multiple splicing units are arranged closely to reduce seam visibility, then the continuity of displayed images is improved, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the display system into multiple independent splicing units, each containing substrates and light-emitting units that can be manufactured and positioned separately. This segmentation allows for modular assembly while maintaining overall image continuity, as each unit follows the same positioning formula. The segmentation approach manages device complexity by creating standardized, repeatable modules rather than requiring a completely custom integrated design
Solution Approach 2:
The patent introduces another dimension by using reference planes (first reference plane and second reference plane) as virtual alignment surfaces that extend beyond the physical boundaries of individual splicing units. This dimensional approach provides a unified coordinate system for positioning light-emitting units across multiple units, simplifying the arrangement complexity by establishing clear spatial relationships in three-dimensional space rather than relying on complex two-dimensional positioning calculations
Data Source
AI summary
A splicing device includes a first splicing unit and a second splicing unit. The first splicing unit includes a first substrate, a first light-emitting unit, and a second light-emitting unit. The second splicing unit includes a second substrate, a third light-emitting unit, and a fourth light-emitting unit. P is a pitch between the first light-emitting unit and the second light-emitting unit, and a pitch between the third light-emitting unit and the fourth light-emitting unit. LA1 is a horizontal distance from a center of the second light-emitting unit to a first reference plane. LB3 is a horizontal distance from a boundary between a light-emitting surface of the second splicing unit and a second reference plane to the first reference plane. LB1x and LB1y are respectively a horizontal component and a vertical component of a distance from the boundary to a center of the third light-emitting unit. LA2 is a vertical distance from the light-emitting surface of the first splicing unit to a bottom surface of the first substrate. LB2 is a vertical distance from the bottom surface of the first substrate to the boundary. The splicing device satisfies:(LA1+LB3+LB1x)2+(LA2+LB2+LB1y)2P≤1.5.