Micro LED Buffer Structure Absorbs External Forces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The brittle holding structures used for micro light-emitting diodes (LEDs) are prone to fracture during transportation and transfer due to external forces, leading to a decrease in yield and efficiency in the process.
Innovation Solution
A structure with micro light-emitting devices that incorporates a buffer structure with a lower Young's modulus than the holding structure, which directly contacts the holding structure to absorb external forces and prevent fracture, ensuring effective support and transfer of micro LEDs between substrates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a holding structure is used to hold micro LEDs during transportation and transfer, then it is easier to pick up and transport micro LEDs, but the brittle holding structure is easily fractured by external forces, resulting in a decrease in yield
Solution Approach 1:
The patent uses a composite structure consisting of a holding structure and a buffer structure with different material properties. The holding structure provides rigidity for gripping, while the buffer structure with lower Young's modulus absorbs external forces, creating a composite system that maintains both ease of operation and reliability
Solution Approach 2:
The buffer structure is pre-installed between the holding structure and the micro LED substrate. This beforehand cushioning arrangement ensures that when external forces are applied during transportation, the buffer structure is already in position to absorb these forces, preventing fracture of the holding structure before damage occurs
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
The buffer structure effectively absorbs external forces, preventing the holding structure from fracturing and enhancing the yield of transporting and transferring micro LEDs by providing a composite support system that balances rigidity and ductility.
Implementation Method 1
a Young's modulus of the at least one buffer structure is smaller than a Young's modulus of the holding structure
Data Source
AI summary
A structure with micro light-emitting device includes a substrate, at least one micro light-emitting device, a holding structure, and at least one buffer structure. The micro light-emitting device is disposed on the substrate, and there is a vertical distance between the micro light-emitting device and the substrate. The holding structure is disposed on the substrate and directly contacts the micro light-emitting device. The buffer structure directly contacts the holding structure. Here, a Young's modulus of the buffer structure is smaller than a Young's modulus of the holding structure.