MIT Engineers Invent Vertically Stacked MicroLEDs With Highest-Ever Pixel Density

The screens on today’s electronic doodads come in all shapes, sizes, and resolutions, but they have one important thing in common: the red, blue, and green sub-pixels are arranged side-by-side. Even with smaller pixels packed as tightly as possible, this flat arrangement is reaching its theoretical density limit. The next step may
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