Projectors like the Sharp DT-400 have 1280 x 720. So what happens to my picture when I go to the Sharp DT-510? What does 1280 x 768 do on my 16:9 screen? Little black bars on the top and bottom? Seems like that would be annoying.
Dt-510 is 1280x 720 . The DT-500 was 1280x 768 which adds bars to the top and bottom, but you will have those with almost all movies anyway as most are wider than16:9. Some 1280x 768 projectors allow you to move the image up and down so you have a bigger bar on the top or bottom and no bar on the other end. This is a poor man's lens shift.
The projector displays 16:9 content as 720 x 1280, which means you have 48 vertical pixels that are not used, hence the extra black bars on the top and bottom.
The biggest annoyance with a 768p projector is if you are using a 16:9 screen with either very thin, or no borders. You can see the light spill of the extra 48 pixels above and below the screen during very dark scenes. It was bothersome enough to me that I made a light absorbing border to hide.
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