Micro LED Assembly Recesses With Protrusions for Color-Accurate Placement
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Solution Overview
Problem
Current display technologies face challenges in assembling large-scale, high-pixel display devices using semiconductor light emitting elements quickly and accurately without color mixing.
Innovation Solution
A display device and manufacturing method utilizing semiconductor light emitting elements with bump parts and a substrate structure featuring assembly recesses with protrusions, allowing for precise and rapid assembly using magnetic and electric fields.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If semiconductor light emitting elements are assembled on a substrate without protrusion parts, then the assembly structure is simple, but the assembly speed and positioning accuracy are insufficient for large-scale high-pixel displays
Solution Approach 1:
The patent introduces asymmetric protrusion parts on the partition and corresponding recesses on the semiconductor light emitting element. This asymmetric design enables directional guidance and precise positioning during assembly, significantly improving assembly speed and positioning accuracy without requiring complex external alignment systems.
Solution Approach 2:
The protrusion parts are pre-formed on the partition structure before assembly. These pre-formed protrusions guide the semiconductor light emitting elements into correct positions during the assembly process, eliminating the need for complex real-time alignment procedures and thereby improving assembly efficiency.
2Manufacturing precision
If semiconductor light emitting elements of various colors are assembled without precise positioning structures, then the manufacturing process is simple, but color mixing occurs reducing display quality
Solution Approach 1:
The asymmetric protrusion and recess design creates a unique fit for each semiconductor light emitting element in its designated position. This prevents elements from being placed in wrong positions or orientations, thereby preventing color mixing and ensuring high positioning accuracy without requiring complex external positioning systems.
Solution Approach 2:
The protrusion-recess structure enables self-alignment and self-positioning of semiconductor light emitting elements during assembly. The elements automatically find their correct positions through the mechanical guidance of the protrusions, eliminating the need for complex external positioning equipment and procedures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables quick and accurate assembly of semiconductor light emitting elements on a substrate, preventing color mixing and improving assembly speed, thereby facilitating the production of large-scale, high-pixel display devices.
Implementation Method 1
allowing for precise and rapid assembly using magnetic and electric fields
Implementation Method 2
allowing for precise and rapid assembly using magnetic and electric fields
Data Source
AI summary
Provided in the present specification are a substrate structure having an exclusive design for allowing assembly on a substrate, at the same time, of a plurality of semiconductor light emitting devices having various colors, and a new type of semiconductor light emitting device, such that the semiconductor light emitting devices can be quickly and accurately assembled on the substrate with a concern about color mixing. Here, at least one of the plurality of semiconductor light emitting devices, according to one embodiment of the present invention, comprises a bump part located in the lateral direction of a surface to be assembled. An assembly groove in which the semiconductor light emitting device including the bump part is assembled is provided with a protrusion part facing toward the inside of the assembly groove.