LCD Overhead Projector Hack

How To Do
http://www.metacafe.com/watch/153950/home_cinema/

http://www.tomsguide.com/us/supersize-your-tv-for,review-342-11.html

http://www.tomshardware.com/2004/12/01/build_your_own_xga_projector_ii/

http://mysite.verizon.net/yub_yump/


monitor

http://i149.photobucket.com/albums/s58/neuclearalpha/E172FPb.jpg

High Quality viewing with a 70 inch horizontal screen Screen in video is 4 feet X 5 Feet(capable of 100 inch +, decent quality with dark room) DVDs/Video played from my laptop using kmplayer (video is rotated and shrunk using kmplayer settings. This is because the 17 " screen is bigger than the overhead display area and is also rotated 90 degrees to lie/fit properly on the overhead. The overhead is connected via my laptops VGA and is displayed as my second monitor with XP extended onto it. I then used a black background wallpaper so the video blends nicely onto the screen. The clear box you see next to the overhead is the LCD power supply and video connections. I mounted it vertically (in the box) so the cable fits right next to the LCD. Check out the links for a more detailed how to.




Total Price:$120....hours spent ~ 24 hours construction time, and a somewhat adept computer skill level.

Winter Break 2007 Project finally completed 2-02-2008 By.... N8T3R
Thanks Cathi/Omer

Time to supersize my anime ^-^

Category:

Howto & Style

Tags:

• lcd
• hack
• home
• cinema
• overhead
• projector
• project
• big
• screen
• diy
• cheap
• flat
• monitor

[karandex]

do you use it regularly ? what is quality compared to other projector ?

[matts2007]

@karandex Na, my brother sold the overhead. We use a standard LCD projector that uses the typical HID bulb. The quality wasn't too bad, just not very bright compared with other projectors. You will get extremely low bulb life with overheads as they take halogen. HID bulbs in normal projectors are usually around 2000 hrs.

[pacxman1167]

I have a question!!!!

Wouldn't it be better if I take apart a overhead and make my own box for it and that would help keep it cool since I would also be rearranging the positioning of the fans and they would be integrated into box design???????

PLEASE GIVE ME SOME INFO.......

AND DO YOU THINK i WOULD BE ABLE TO USE A LAPTOP SCREEN?

[matts2007]

I wouldn't mess with the overhead projector design itself. The internal fan is trying to push hot air out from the bulb. If you disassemble the bed of the projector, there is a chance of optical misalignment. I figure adding fans was the easiest approach. As with a laptop screen- if it tears down easy, and you can interface it with some sort of video source, yes.

[pacxman1167]

OH ok thanx

Is this projector still working for you??

[matts2007]

Yes, It just takes up a lot of space.

[MrTpengineer]

With thoes old overhead projectors you can also fit a led bulb in it, say one that's around 60 watts, no heat will mean longer lcd life :)

[chrisconwaypeters]

I just tried to mount my own projector with a flat screen, not one, but two, and had the problem of connecting the vertical and horizontal board ribbons together without obstructing the screen.

[lwmtech]

eine frage, wie habt ihr es mit der erdung des tft´s gemacht? ich hab meinen ersten tft geschrottet weil ich die das erdungkabel nirgends dran hatte. soll ich das erdungskabel mit an das gehüuse des Projektors festmachen? Bitte um Hilfe

[libertysunbeam2]

make sure you watch for heat dammage as well if you do this and you may want to make vents if that occurs.

[libertysunbeam2]

if you simply cover the top of the unit with a cardboard box you should dramaticaly increase brightness as well as turn off and shut out all lights (anything low light even like open window, led alarm cock, etc). allowing a cut in the box positioned for the light to reach the mirror. light pollution will dim a dim light and wash it out. light from the main unit is most likely filtering into the room washing out the projectors own image, a brighter light will wash out a faint light.

[PRCkevlar]

Where did you get the overhead projector? Ive been wanting to do this for a while but I cant find a projector...

[yuppybarf]

you should be able to improve the image by putting a cardboard box on the top of the unit and make sure the room is light tight (and you allow ventalation and check for heat when you do this. most likely light pollution from the main units base is bleeding through the causing the screen to look faint, it should help focus the light into the glass mirror/lense as well. you will want a ligth tight room as even a little light can wash out a projectors projected image.