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What are micro-, mini-, and traditional LEDs?

Eric Virey - super analyst in the field Yole Group - prepared the below chart, showing the difference between each.

Traditional LEDs come in SMD or through-hole packages and the dies are typically 1mm or larger. This well-established application finds use in general lighting, automotive lighting, and LCD backlights.

Min-LEDs are typically smaller than 200um in die size but larger than 50um, and come in SMD or CoB (chip-on-board) packages. They are currently commercial and find applications in LCD and keyboard backlights, narrow-pixel pitch LED direct view LEDs, and other sectors. In the LCD sector, they are suited to provide local dimining to imrpove contrast, making LCDs more like OLEDs on this feature.

and micro-LEDs are very small, typically smaller than 50um. The size of the microLEDs is expected to shrink furter as the technology progress to reduce LED cost (more LEDs per wafer) and transfer cost/time (more LEDs transfered within the same stamp).

Evidently each class of LEDs is very different in every sense from growth techniques to performance to application.

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