Prof. Kei May LAU’s Research Featured in IEEE Spectrum: New Device Could Drive MicroLED Displays, Li-Fi

Kei May LAU, Fang Professor of Engineering and Chair Professor of ECE, together with her students invented a new device which could make upcoming microLED displays easier to engineer and visible light communications systems, like LiFi, faster.

The HEMT-LED, which is a bit like a light emitting transistor, allow you to switch light emission on and off and control brightness with voltage signals. The device’s ability to switch quickly while controlling its current is one of its key features. Moreover, the dimming capability is an inherent characteristic of the device.

Prof. LAU’s lab has been focusing on making arrays of smaller HEMT-LEDs, and trying to incorporate them in microLED displays. Such still-in-development displays are in the works by tech giants, such as Apple and Facebook, and startups such as Aledia.

 

Prof. LAU's research is featured in IEEE Spectrum:

https://spectrum.ieee.org/tech-talk/semiconductors/optoelectronics/new-device-could-drive-microled-displays-lifi

 

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The HEMT-LED is a single three-terminal device that control light emission via voltage signals
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The gallium-nitride HEMT-LED lets voltage control light, replacing typical LED support circuitry

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