Ultra-high frame rate digital light projector using chipscale LED-on-CMOS technology

Understand

Digital light projector systems are crucial components in applications including computational imaging, fluorescence microscopy and highly parallel data communications.

• Here we present a chip-scale projector system based on emissive micro-LED pixels directly bonded to a smart pixel CMOS drive chip.
• Enabled by the high modulation bandwidth of the LED devices, the 128x128 pixel array can project binary patterns at up to 0.5 Mfps and toggle between two stored frames at MHz rates.
• The projector has a 5-bit grayscale resolution that can be updated at rates up to 83 kfps, and can be held in memory as a constant bias for the binary pattern projection.