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Sharp's LCD and Scanner: An Integrated Sensing Display?

Sharp recently made some headlines with the demonstration of a prototype LCD that doubled as a scanner.



The 3.5" LCD screen integrated an optical scanner that could be used to scan business cards, but also be used as a method for multi-touch input.

The screen, on show at the Ceatec exhibition, features an optical scanner for each LCD pixel, and could also be used to recognise fingers or other objects.


The prototype is expected to see commercialization in the first half of 2008.

While not directly linked to Apple, the technology is very similar to an old patent application from Apple which described an "Integrated Sensing Display". Apple's patent described possible uses in video conferencing and photos, but could have also been used for a multi-touch display. Of course, Apple has since come out with the iPhone which offers a multi-touch display. The iPhone, however, uses a capacitance-based touch screen, rather than one based on image capture.

Apple continues to research and develop various touch-based technologies. Their most recent patent applications include pressure sensitive input technology on existing touch screens.

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57 months ago
Now that could be an interesting addition to iPhone v2!

but I feel its a bigger wow factor than practability factor!

I would like to see it in action though
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57 months ago
is this the way of the future?
it looks cool :)
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57 months ago
Kinda spooky to think that we might some day wind up with screens that double as cameras. :eek:
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57 months ago

... Apple continues to research and develop various touch-based technologies. Their most recent patent applications include pressure sensitive input technology on existing touch screens. ...

As to the pressure sensitive part ...
doesn't this mean that we have to go back to plastic (deformable) screens?

This process certainly won't work with a milimetre or two of glass in front of the display, and Apple has just finished re-tooling their entire line to use glass screens. This kind of implies that this is for a product in the future, not "iPhone 2.0."
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57 months ago

Kinda spooky to think that we might some day wind up with screens that double as cameras. :eek:


Yeah but come on, who is really that interested in watching? :rolleyes:
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57 months ago
This has the 'potential' to be cool. However in reality it will probably be fiddly, and require you to do retakes and be precise, as current touch screen devices to. But still, it's nice to know that we're getting there eventually.

I wonder if this would lead to your boss watching you while you worked at your computer. Hell, NOBODY'd look at anything remotely adult while they worked. ;)
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57 months ago
Sounds pretty cool. Maybe someone can adapt it so we can have the viewscreen kind of thing in Star Trek.
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57 months ago

As to the pressure sensitive part ...
doesn't this mean that we have to go back to plastic (deformable) screens?

This process certainly won't work with a milimetre or two of glass in front of the display, and Apple has just finished re-tooling their entire line to use glass screens. This kind of implies that this is for a product in the future, not "iPhone 2.0."


The reason the iPhone has glass in front is to keep it scratch-free (as opposed to a plastic only screen).
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57 months ago
Makes a lot of sense. The color filters used for the LCD, with a photodiode behind them, could make for a very simple scanner. The awkward part would be preventing the backlight from flooding the sensor, and only capturing the reflected light from the object. I don't think this will work as a camera-- your face, for example, would be reflecting light to all the sensors at once creating one big blur. It would require really sophisticated and expensive lensing to be able to keep this flat and viewable while being able to capture an image of an object at any distance.
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57 months ago
Such a device would likely be a plus for businessfolk. Be nice to just drop someone's business card on your iPhone display and it scans into your Contacts.
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