Sundiode Achieves Full-color Micro-displays Based On Stacked 3-color Micro-LEDs

Sundiode Inc, a Silicon Valley-based company developing micro-LED technologies for display applications, has demonstrated a full-color micro-display, consisting of a stacked 3-color (RGB) micro-LED pixel array driven with an active-matrix silicon CMOS backplane.

The compact 15.4mm x 8.6mm display has an array of stacked-RGB micro-LED pixels on a single chip bonded directly onto a Si CMOS backplane in its entirety, completely avoiding conventional pick-and-place processes required for transferring discrete R, G and B subpixels.

The development demonstrates full-color operation of a micro-display with significantly enhanced utilization of the small pixel area of a micro-display. In this display, the pixels are 100μm in size, resulting in a resolution of about 200PPI.