New screen lets you smell objects on display

New screen lets you smell objects on display

Now, smell the coffee on your


Japanese scientists have developed a 'smelling screen'

that allows you to see as well as smell the coffee or food

displayed on it.

The "smelling screen", invented by Haruka Matsukura at

Tokyo University of Agriculture and Technology in Japan and

colleagues, makes smells appear to come from the exact spot on

any LCD screen that is displaying the image of a cup of

coffee, for example.

It works by continuously feeding odours from vaporising

gel pellets into four air streams, one in each corner of the


These air streams are blown out parallel to the screen's

surface by fans, and varying the strength and direction of

them manoeuvres the scent to any given spot on the screen.

The airflow is gentle enough to create the illusion that

the smell is actually wafting from a digital object on-screen,

New Scientist reported.

The current system only pumps out one scent at a time, but

Matsukura said the next stage is to incorporate a cartridge,

like those for printers, which allows smells to be changed


Matsukura suggested it could also be used to enhance

advertising screens and museum exhibits.

The screen was shown at the IEEE Virtual Reality

conference in Orlando, Florida, last month.

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