Is DI rear illumination a good choice for LCD Multittouch Tables? Or what best Methode for LCD? 
Posted: 18 January 2010 02:33 PM   [ Ignore ]
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Hi Guys,

i´m a really noob with multitouch from Germany grin

i want to create my first multitouch table mit LCD TV now…

i´ve done many many research in all sections about this technology but some questions are not CLEARLY answered. hope somebody can give me a clear answer.

what is the best method for LCD Tables?

I think DI-Rear Illumination will be the easiest to SETUP, isnt´t it?

But will it work without Problems?

What you guys think is the BEST method for LCD?

RearDI, LLP, FTIR.... Others? ....

Best regarts

Daniel

PS: I want to create 30” LCD and bigger Tables…

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Posted: 18 January 2010 08:31 PM   [ Ignore ]   [ # 1 ]
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Rear DI generally will not work with an LCD screen because most have an IR blocking coating on the back which will stop any IR light getting through to your fingers. My table uses FTIR and it seems to work pretty well. I’m guessing LLP and DSI will work too

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Posted: 18 January 2010 09:15 PM   [ Ignore ]   [ # 2 ]
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hi and thanks for the answer.

as i see with LLP reactables will not work, isnt it?

“ ...Cannot track traditional objects and fiducials… “

if true.

only FTIR and DSI will left for LCD i think.

as i see most peoples use FTIR…

what you think what will be the best choice FTIR or DSI?

regards

Lausch

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Posted: 19 January 2010 02:35 AM   [ Ignore ]   [ # 3 ]
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not sure which is best between FTIR and DSI, but if you want to track objects or fiducials then i would say go DSI since FTIR cant track them.

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Posted: 19 January 2010 08:27 AM   [ Ignore ]   [ # 4 ]
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hey. I have tried two sets of lcd´s for DSI setups and none of them had any trouble getting light thru either side. If you wanna do some fiducialtracking llp and FTIR is out of the question even though i think there is a simple way of doing fiducials for llp now. Search forum for that.  DI or DSI seems to be your choice anyway. Why dont you get the stuff you need to get some ir-light up and running and test if there is any trouble getting light thru you lcd? A remotecontrol or something should work for that, right?

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.Limpa

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