Sunday, March 16, 2014

Question on native resolution of DLP projectors...?




Genesis Cl


If a DLP projectors native output is 1300x1280 would it make a 1080 or even 480p image sharper then if it was on a projector with those specific outputs of resolution? I am thinking the more numbers of resolution the cleaner and sharper the image but it's still only gonna be as sharp as it's source, so it may not be needed for all those extra pixels.


Answer
A DLP projector of the resolution you specified is not a 1080p/i projector.

The max resolution it is capable of displaying in its entirety is 720p. The 720p resolution is 1280 x 720. Obviously, that projector can easily meet that resolution.

However, 1080i/p is 1920 x 1080. Your projector can not display this resolution fully and therefore is not capable of DISPLAYING 1080i or p. What will happen instead is the projector will accept incoming 1080i and sometimes p signals and scale them to the native resolution of the projector.

This brings us to your question. The higher resolution will help display 1080i/p sources closer to their intended resolution. It won't be full 1080 resolution but the extra lines of resolution do make for less interpolation needed.

When it comes to 720p sources, the extra pixels really don't help too much. Your projector will do its best converting to the native resolution but it won't net a noticeable increase in picture quality. The goal is to scale the image without creating noticeable anomalies such as "jaggies" in diagonal lines. Most projectors will do this decently enough.

Projector Resolution?




john smith


I am looking for a new projector for my home and I just had some questions on the resolution? First, what is the difference between native and maximum resolution? Secondly, is there a noticeable difference between full hd 1080p projectors and 720p projectors in there picture quality?


Answer
Native resolution is the maximum resolution that a projector is capable of projecting an image at. A projector with a native resolution of 720p will never display video at the same level of sharpness as a projector with a native resolution of 1080p. It only has 1280Ã720 pixels in its display hardware, while a 1080p projector has 1920x1080 pixels.

Maximum supported resolution tells you what video resolutions a projector can accept from playback devices, but any resolutions that are higher than the projector's native resolution will have to be downsampled before displaying.

For example, a projector may have a native resolution of 720p. That projector might be able to support a video signal with a resolution of 1080p from a Blu-ray player. But the projector has to downsample the 1080p video to 720p before displaying it. So even though you can send that projector 1080p video, it will only be displayed at 720p, the native resolution of the projector.

There will be a noticeable difference between 720p and 1080p projectors if you project an image area at a size of 50" or larger, which is easy to do with a projector.

This site has good info for you about projectors: http://www.projectorcentral.com/home-theater-multimedia-projectors.htm .




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