‘invisible’ displays tagged posts

Atomically thin LED opens the possibility for ‘invisible’ displays

Gif of the device in action. Probes inject positive and negative charges in the light emitting device, which is transparent under the campanile outline, producing bright light. Credit: Javey lab

Gif of the device in action. Probes inject positive and negative charges in the light emitting device, which is transparent under the campanile outline, producing bright light. Credit: Javey lab

UC Berkeley engineers have built a bright-light emitting device that is millimeters wide and fully transparent when turned off. The light emitting material in this device is a monolayer semiconductor, just 3 atoms thick. The device opens the door to invisible displays on walls and windows – displays that would be bright when turned on but see-through when turned off – or in futuristic applications such as light-emitting tattoos, according to the researchers...

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