I am coming back to show the lastest results from my 15" projector, which was built based on the information from LL forums.

Camera: Canon 300D
ISO: 100, aperture: 4.0, shuttle speed: 0.4 sec, automatic white ballance.
Cropped and resized using Photoshop.
Screen size: 100 inch, HDTV

amazing

HDTV: CSI-NY
Shuttle speed: 0.6 sec. Others are the same.

HDTV, Very dark screen, the shuttle is 5 Sec, but I can still see the details in such dark screen after the extreme mod.

why your image backwards???

That is a good question?
First, it was found that much better results will be obtained when the back of LCD faces the lamp. When the front of LCD faces the lamp, the images are so bad, appearing that every pixel has a tint of black in my screen, that I just want to kick myself and throw the projector away since I saw the better result.
Second, I can flip the image using software to view desktop, DVD and other video formats, but it doesn't work on my HDTV software, which needs to control the overlay by itself.
By now, I prefer the backwards with high PQ to the normal one with much lower PQ to watch HDTV. I plan to add a first surface to fix this problem.

Voovoov,

Have you removed the antiglare from your monitor? I would think that if you removed it, the quality of your image with the lcd reversed should improve greatly.

I would think that this would be a better option than using a mirror, which would reduce your total lumen output.

Rhino

That is the reason that I removed it hoping to get a normal live HDTV, however, it turned out that one side of LCD still delivers worse image than another one.

It looks pretty good to me

good, better, best