thank you for it advice, I shall buy what I need for a little more thoughtful test, I ‘m searching and testind many things befor present a good project, if I have good ideas or good result I will show you the results.

Any one try White LED as the the backlight for the lcd display.

isshah - 29 May 2008 01:34 PM

Any one try White LED as the the backlight for the lcd display.

ya, i replaced my backlight with 2 rails of bright white leds...works just as well as the CCFLs.

I thought that this would interest the LCD modders - looks like someone at Intel is thinking along the same lines.

http://www.pcper.com/index.php#NewsID-5727

That’s a 30 inch dell monitor hacked to be a touchscreen with ir leds. (2nd photo)

-nevermind-

Dear Friends，
Japanese company SHARP has just released some samples about a new type of Light sensor embedded LCD screen, it has one Light sensor pixel embedded along with 3 color pixels, so it can scan pictures while displaying. I saw they made a demo of GIS related application(multi-touch enabled, Gesture control), and I believe this can be a revolution to hand-hold Electrionic Entertainment devices.

How did your large LCD based setup go? I think I saw it in another thread but I can’t remember. Was it the one with the 42 inch Vizio display?

i finished a large LCD setup over the summer (37” LG HDTV).

Nima, do you have showcase on that project, would love to see it.

i only have pics of the table in construction from 0% - 75%

i would need to contact the client for pics of the table in use and in location.... i’ll see what i can gather

Nima, I’d be interested in seeing the pics too

Nima, that is really nice! I’ve been thinking of using a projector but considering that it is really expensive I tried looking for cheaper options.  Now, that I have seen that you were able to do it without a projector, I want to build my MT using your setup.  If I am not mistaken you started out with LCD-FTIR but ended up with RI.  Is still possible to use an acrylic above the LCD panel?  I have acquired an acrylic already and don’t want it to go to waste.  :( If this would be so, do you still have to use silicone or something?  Do you have any step by step process in dismantling an LCD projector?  I really am wary of doing this.  Still new to this though.  Thanks.

Nubii,
Acrylic will work for FTIR, DI, LLP, and DSI. For FTIR, though, you have to have acrylic (or plexiglass...but not regular glass). For the other methods, though, any of them work.

Silicone/compliant surface is only necessary for FTIR - unnecessary and unwanted for the other 3 techniques.

You mean dismantling LCD display, correct? If so, here’s something that may help (not exactly a step-by-step guide though): http://www.google.com/bookmarks/url?url=http://content.gateway.com/www.gateway.com/pdf/8512143_LCD_Disassembly_Gde.pdf&ei=CfbzSOb1N6y0aufG3dsL&sig2=1huArmQO_i93zZjML8s0-Q&ct=w and http://www.google.com/bookmarks/url?url=http://www.bit-tech.net/hardware/2006/03/20/how_crt_and_lcd_monitors_work/5&ei=CfbzSOb1N6y0aufG3dsL&sig2=QQvWyWngO13XSbY9zkybpw&ct=b .

hope this helps
rbedi100

Hi Nima,

nice setup! I am in the midst on figuring out the different solutions and got stuck at your’s.

I was wondering how much you have spent for the material? Especially I expect to be much cheaper than the “classic” setup with a beamer?!

Can you elaborate on that a little!?

Thanks.

Nima, I noticed you mentioned “client” ... are you able to share what sort of price range the client ended up paying you for the finished work?  It might be interesting data point to add to this forum so we have a better what the market demands and is willing to pay for.