Using a bare LCD panel with an overhead projector is a decades-old hack we’ve covered before. The basic idea is fairly simple, but we’ve never seen anything that could be considered a semi ...

I have one of these Overhead projector systems, but I din’t bother taking apart an LCD monitor, I just bought a transparent LCD screen on ebay. I guess thats not really a hack or DIY, but it is ...

LCD video projectors are rapidly becoming standard fixtures in many schools across the U.S. Teamed with a computer, DVD player or other media device, the LCD projector displays clear, high ...

4. Cool It Place a fan next to the projector and position it so that it blows air between the LCD and the bed of the overhead projector. 5. Ready, Set . . .

[1] Overhead transparency with a mark [1] Overhead projector; Script. Turn on the projector and put the transparency on it. Focus the projector. Put the block on top of the mark and refocus the ...

Overhead projectors carry a price tag that can run from 10 percent to 50 percent of the cost of their LCD-based cousins. Both device types use specialized lamps, but the price differential ...

Careless handling of the overhead projector drains the communications value of presentations. The four most serious problems are: the keystone image; cluttered visuals; speaker blocking the image; and ...