Curved Display Assembly Jigs for Edge Pressure Control
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Solution Overview
Problem
Stress concentration on edges of a display panel during the assembly of a curved display can cause difficulties in forming the desired curvature.
Innovation Solution
A device for assembling displays featuring an upper jig with a convex pressing surface and a lower jig with a concave pressing surface, where the curvature and distance between the surfaces vary along the longitudinal direction to apply a higher pressure per unit area to the edges of the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional flat pressing surface is used during assembly, then the assembly process is simple, but stress concentrates on the edges of the display panel making it difficult to form the desired curvature
Solution Approach 1:
The pressing surface is designed with different curvature characteristics at different locations: the central region has a first curvature while the edge region has a second curvature that is greater than the first. This local differentiation allows the edge regions to apply higher pressure for curvature formation while the central region provides stable support, thereby resolving the stress concentration problem without requiring a completely complex pressing surface design.
Solution Approach 2:
The pressing surface incorporates curved surfaces with varying radii of curvature. The edge region has a smaller radius of curvature compared to the central region, creating a concave-convex structure that naturally directs stress toward the edges during pressing. This curvature design enables effective curvature formation of the display panel while maintaining a relatively simple overall pressing surface geometry.
2Manufacturing precision
If high pressure is applied to form curvature, then the desired curvature can be achieved, but excessive pressure causes stress concentration and assembly difficulties
Solution Approach 1:
By designing the pressing surface with different curvature characteristics at different locations, the system applies higher pressure locally at the edge regions where it is needed for curvature formation, while the central region maintains lower pressure. This localized pressure distribution achieves the desired curvature without causing excessive stress concentration across the entire display panel, thereby eliminating the harmful effects of over-pressing.
Solution Approach 2:
The curved pressing surface with varying radii of curvature naturally distributes pressure during the pressing process. The smaller radius of curvature at the edges creates higher pressure locally for curvature formation, while the larger radius at the center provides more distributed support. This geometric curvature design inherently prevents excessive stress concentration while achieving the desired curvature formation.
3Ease of operation
If uniform pressure is applied across the pressing surface, then the pressing process is simple, but the edges of the display panel experience excessive stress concentration
Solution Approach 1:
The pressing surface is designed with non-uniform curvature characteristics: the central region has a smaller curvature radius while the edge region has a larger curvature radius. This local differentiation automatically creates varied pressure distribution during pressing, with higher pressure at the edges for curvature formation and lower pressure at the center. The system maintains operational simplicity while eliminating excessive edge stress concentration through this geometric design.
Solution Approach 2:
The curved pressing surface with varying radii of curvature naturally distributes pressure during the pressing process. The geometric curvature design creates higher pressure at the edges where it is needed for curvature formation, while the central region experiences lower pressure. This inherent pressure distribution mechanism maintains pressing process simplicity while preventing excessive stress concentration at the edges.
Data Source
AI summary
Disclosed is a device for assembling displays. The device for assembling displays may provide a relatively high pressure per unit area to edges of a display panel during assembly of the displays.