Tiled Display Alignment Vernier Marks to Minimize Seams
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Solution Overview
Problem
Large-size display devices face increased defect rates and decreased productivity due to the number of pixels, leading to seams and reduced reliability in tiled display devices, which affect the sense of immersion.
Innovation Solution
Incorporation of vernier marks on display devices to enhance alignment efficiency and improve the manufacturing process of tiled display devices by ensuring precise alignment of adjacent display units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple display devices are connected to form a large-size display, then the screen size is increased, but seams appear between devices reducing immersion
Solution Approach 1:
The large display system is segmented into multiple independent display devices that can be manufactured and assembled separately, allowing for modular construction while maintaining overall functionality
Solution Approach 2:
Vernier marks are introduced as intermediary reference elements positioned at the boundaries between display devices. These marks facilitate precise alignment during assembly, minimizing visible seams and improving the overall immersion quality of the tiled display
2Manufacturing precision
If alignment precision is improved using vernier marks, then seam visibility is reduced, but manufacturing complexity increases
Solution Approach 1:
Vernier marks are pre-positioned on the display devices during manufacturing, establishing reference points before assembly. This preliminary action enables precise alignment to be achieved during assembly without requiring complex real-time measurement systems
Solution Approach 2:
The vernier mark pattern serves as a replicated reference template that can be consistently applied across multiple display devices, enabling standardized alignment procedures and reducing the need for custom alignment solutions for each device
Data Source
AI summary
A display device and a tiled display device are provided. The display device includes a substrate having a first side, which extends in a first direction, and a second side, which extends in a second direction that intersects the first direction, a first alignment vernier mark disposed on the substrate, the first alignment vernier mark adjoining the first side and extending in the second direction, and a second alignment vernier mark disposed on the substrate, the second alignment vernier mark adjoining the second side and extending in the first direction.