Spliced Lamp Panel Assembly with Interlocking Joints
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Solution Overview
Problem
Medium and large size mini LED panels face issues such as warpage, unevenness, breakage, chopped light, and dark lines at joints due to instability during splicing, leading to uneven brightness.
Innovation Solution
A lamp panel assembly with convex and concave portions on adjacent panels that fit together, forming a stable splicing structure, reducing gaps and improving light mixing, and an outer frame with matching connecting portions to enhance stability and minimize splicing gaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If mini LED panels are spliced to form medium and large size panels, then the display size is increased, but warpage, unevenness, breakage, and dark lines occur at joints
Solution Approach 1:
The connecting portion is divided into a convex portion on one lamp panel and a corresponding concave portion on the adjacent lamp panel. This segmentation allows the joints to be precisely fitted together, preventing warpage and unevenness while maintaining structural integrity across the spliced medium and large size panels.
2Reliability
If large optic distance is used to solve joint problems, then joint stability is improved, but lamp panel thickness increases
Solution Approach 1:
Instead of increasing the optic distance (one-dimensional solution), the patent introduces a three-dimensional connecting portion with convex and concave structures that interlock vertically and horizontally. This multi-dimensional approach provides joint stability without requiring increased lamp panel thickness.
3Area of stationary object
If lamp panels are spliced together, then large size display is achieved, but dark lines and uneven brightness occur at joints
Solution Approach 1:
The convex and concave portions are pre-formed on the lamp panels before assembly. This preliminary structuring ensures that when the panels are spliced, the connecting portions automatically align and fit together precisely, preventing gaps that would cause dark lines and ensuring uniform light mixing across the entire display surface.
Data Source
AI summary
The present disclosure provides a lamp panel assembly and a display device comprising the same. The lamp panel assembly includes a plurality of mutually spliced lamp panels. A connecting portion is formed between any two adjacent lamp panels and comprises a convex portion and a concave portion respectively disposed on the two adjacent lamp panels and fitted to each other.