Display Module Positioning Structure for Narrow Splicing Seams
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Solution Overview
Problem
Existing display technologies face challenges in seamlessly splicing Mini/Micro LED-based display modules, leading to large splicing seams that result in display dark seams, affecting yield and assembly quality.
Innovation Solution
A splicing display device with a mounting structure featuring first and second positioning assemblies that apply a pressing force parallel to the display module plane, allowing adjacent modules to closely approach and reduce splicing seams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If display modules are spliced together to form large-size displays, then the display size is increased, but the splicing seam becomes too large causing display dark seams
Solution Approach 1:
The positioning assemblies are pre-installed on adjacent display modules before splicing, with positioning protrusions and positioning grooves already in place. This preliminary positioning ensures that when modules are brought together, they automatically align with precise spacing, preventing excessive splicing seams before the actual splicing operation occurs.
Solution Approach 2:
The positioning protrusion acts as an intermediary element between adjacent display modules. It fits into the positioning groove to establish and maintain the precise spacing relationship between modules, thereby controlling the splicing seam size without requiring direct adjustment of the modules themselves.
2Area of stationary object
If display modules are spliced together, then large-size display is achieved, but control of spacing between LEDs from adjacent modules becomes difficult
Solution Approach 1:
The positioning assemblies with predetermined protrusion-groove geometries are installed on display modules before splicing. These pre-configured positioning elements ensure that when modules are assembled, the spacing between LEDs from adjacent modules is automatically controlled to within the required precision, eliminating the need for post-assembly adjustment.
Solution Approach 2:
The patent replaces complex mechanical adjustment systems with a simpler positioning protrusion-groove mechanism. This mechanical feature-based approach automatically maintains precise LED spacing through geometric constraints, substituting for more complex mechanical adjustment devices that would be needed to achieve the same precision.
3Manufacturing precision
If a pressing force is applied to display modules, then splicing seam is reduced, but the structure becomes more complex
Solution Approach 1:
The positioning and pressing functions are merged into a single integrated positioning assembly structure. The positioning protrusion and pressing component work together as one unified mechanism, eliminating the need for separate positioning and pressing devices, thereby reducing overall structural complexity while achieving both precise positioning and seam reduction.
Solution Approach 2:
The positioning assembly serves multiple functions simultaneously: it provides positioning alignment through the protrusion-groove interface, applies pressing force to reduce splicing seams, and maintains LED spacing control. This multi-functional design eliminates the need for multiple separate components, reducing device complexity while achieving multiple objectives.
Data Source
AI summary
A splicing display device includes: a case; display modules on the case; and a mounting structure, including a first positioning assembly on a side of the case facing the display module, and a second positioning assembly on a side of the display module facing the case, where positions of the first positioning assembly and the second positioning assembly correspond to each other in a thickness direction of the display module, and the first and second positioning assemblies contact and fit in a direction parallel to a plane in which the display module is located, so as to cause the display module to approach at least one display module adjacent thereto. The contact and fit between the first and second positioning assemblies exerts a first pressing force on the whole display module to push the display module to closely approach at least one adjacent display module thereof.