How To: Hack an LCD screen & overhead into a digital projector

Hack an LCD screen & overhead into a digital projector

Digital projectors can be prohibitively expensive, particularly for those who stand to benefit the most from their use—that is, young people who prefer watch television and movies on their home computers. No longer. This hacker's how-to demonstrates how to make a simple digital video projector out of an old LCD flatscreen monitor and a slide, or overhead, projector. For detailed, step-by-step instructions on fabricating your own LCD/overhead digital projector on the cheap, take a look!

32 Comments

FANTASTIC !!!!!! Why didn't i know how to do that ???? Well i do now... gotta do that.... Thanks to all involved in bringing this knowledge to me...

good

What did u do to get the video on screen?

Very clever, nicely done

xxlilkidnotxx: Maybe he connected the display to his computer with the VGA or DVi port on the screen? Isn't that quite obvious...

Ahh yes, nothin better than #$%@ing up my $400 flatscreen to produce a rigged pain in the ass Pseudo projector. Iv done this before, lackluster results. But the video is cool in any case.

you guys are #$%@ed its fake man. ya lets watch star trek on a 10 foot screen lol geeks

seriously. starwars iz gheyzor. noobz!

Nice work guys! But... Battlestar Galactica it would be better to test it!!! ^^!!

I have finished my build after viewing this vid. I have 120" screen getting 1280 X 1024, IT LOOKS FABULOUS . I built case that keeps everything very secure and cool the 15" TFT I used has a built in tv tuner with PIP and composite, s-video, and VGA inputs, with a remote control and on board audio with output and inputs for each video source and speakers for when it gets taken somewhere. keep in mind.... the more features the monitor has , the more your projector will have......
Monitor $50 on CL
Overhead $35 on CL
a dozen bulbs (200 hours each +/-) $15 on ebay
everything else was household supplies
----------------TOTAL $100---------------
I have gotten rid of my 32" HDTV as my main tv.... great for GAMES TV and COMPUTER........THANKS FOR THE VID!!!!!

Looks faker than a $4 bill

Why are so many people telling that things they dont understand are fake, and are the same that believe theres a "god"?

its not fake thats for sure but the graphic is kak

thats so amazing y didnt any1 think of that b4

great job, this is truely an alternative way to go that urchasing a HD Projector over $ 2000.00 or more.., do the math and the project..And you have just created home theather for under $ 100.00 bucks..

Its thought out-of-the-box... i really like it.

And anyone complainin about bull#$%@-movie or lesser quality, doesn't get it...

Its awesome...

What is the LCD screen connected to? Also what was the square object placed on the side of the projector? Why after all the trouble did the author not give explicit instructions? Good thought but incomplete. A worthwhile project for sure.

FanFriggenTastic!!!

what type of monitor did u use, cuz I can't figure it out...

-_- can't believe you noobs STILL don't understand how t his works
its SO simple to get
: LCD monitors are pretty much layers of Liquid Crystals( hint: LCD) the white cover is there to prevent the viewer from seeing the background of the monitor case. \The black layer thats know as the display is see-through.
For people who don't understand it.
The concept is trying to get the black layer off the case and putting into a projector. The monitor cannot be widescreen needs to be the same inches as the projector.

werddd up

how durable is this contraption. Will the LCD screen melt? Where do you get a cooling fan and how do you install it?

It's not fake. He placed just the LCD screen on the Overhead Projector and the high voltage board only. without mentioning that you have to re-connect everything, he skips it and shows you what it looks like when It's finished. He has all the other boards and wires connected and covered with some cardboard and some tape. All the components he took out of the LCD monitor are very much needed to make it run.

all he is doing really is just slimming it down so it will fit on the projector and look nice.

awesomw bro,awesome.i'm tryn it!

It's not fake. He placed just the LCD screen on the Overhead Projector and the high voltage board only. without mentioning that you have to re-connect everything, he skips it and shows you what it looks like when It's finished. He has all the other boards and wires connected and covered with some cardboard and some tape. All the components he took out of the LCD monitor are very much needed to make it run.
============
stretching exercises

works on same prinicpal as a lcd projector clock,strip one them cheap gizmo's down and tis the same idea,shame he didn't think of replacing light source with high output l.e.d.s as it would cut down hell of a lot on heat,or should do ?

I've built one of these, the overhead projectors are obsolete and usually free, you can use a monitor that is broken (burned out backlight) so you can get that usually for free from local computer repair shops. Hook it up to the output of your laptop and pop in a DVD and you are good to go, if you use a a real projector screen (not the wall in your bedroom) the picture looks much better btw.

Hell, i cant read anything! what to click..??

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