Sunday, March 25th 2007
Turn Your Laptop into a Touch Screen
NAVIsis has demonstrated an interesting new product at this year's CeBIT, with its LaptopTablet, a device which allows you to turn a normal LCD notebook screen into a touch screen to give it features similar to tablet PCs. You simply attach it to the side of the screen, plug it into a USB port and start writing/ drawing. The recommended price is $130 and more information can be found here - presumably it works with all LCD screens, not just notebooks, but it looks like it could potentially scratch them if there isn't a screen guard.
Source:
AVING USA
23 Comments on Turn Your Laptop into a Touch Screen
And who wants to spend all day drawing on the screen with their arm at that awkward angle. Graphics tablets exist for a reason, they are probably more accurate too.
A quality graphics tablet the size of a laptop LCD costs in the thousands of dollars...
Well...maybe not lasers, but some sort of projected grid perhaps.
For touch screens they used infrared, im not sure about in this case though, it isnt exactly a touch screen.
But yeah what they do usually is have two infrared beams, one horizontally and one vertically. Wherever a beam is interupted is given an (x,y) value according to horizontal and vertical location and thats where your cursor or pen or whatever is located.
Which is whats strange about this as it has no vertical beam. They probably just find the horizontal point along which the persons finger exists by measuring the time it takes for the infrared to bounce back or something to that effect.
It would be calibrated in the factory...
You want a $130 keyboard :confused: LOL
It would need calibration to upscale or downscale what you write/draw, but if your writing in the size that you want to get output at it shouldnt change.
In the pic the writing came out on screen the same size the guy wrote it at, and it was converted to text anyway. Seems kinda pointless for that...
Also, somewhere someone's already made a ghetto version of this using an old Dell screen and a tablet...search around, I can't remember links (might find later when on different PC)
but basically he tore out the sensors behind the tablet surface and placed it in the back of his monitor.
Looked awesome :rockout: we all know ghetto is the way to gho..