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.
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.
DLP Projector color wheel malfunction?
chris m
:UPDATE:
I sent the projector to Optoma under warranty. I haven't been given a specific issue yet, however I did find out that it could be the electronics degrading due to overheating or the color wheel mechanism could be bad. There is a little wheel with Red Green Blue colors that spins in front of the lamp creating colors. It could be out of sync. Optoma told me that the projector can be sent to them for a cleaning every couple months for free, if under warranty.
ORIGINAL Q:
I have an Optoma 739 with about 800 hours on the first lamp. Recently after about 1hour of operation the image color begins to flicker and the image turns green. The projector is used in a smoking environment. What happened to the color wheel ; if it is that? And how can I prevent this in the future?
Answer
Projectors are not designed for smoking environments. I am quite surprised that Optoma is honoring yoru warranty. Most companies void the warranty, as they have "smoking" in the warranty statement.
The nicotine residue is sticky, which can clog the vents, filters, attract dust. This can cause the wheel to slow down. If the wheel slow down, that is one cause of the wheel going out of sync.
If you want projectors to work in a smoking environment, you need an enclosed box around it that can clean the air that is going in the projector.
I use to write repair manuals for projectors. The wheel out of sync would not cause the image to turn green, unless the wheel actually got stuck on green. A green image usually means there is an issue with the mainboard, which contains the video processor and controls the color wheel.
I would seriously suggest switching to an LCD projector. LCD projectors do not have any moving parts besides a fan.
Projectors are not designed for smoking environments. I am quite surprised that Optoma is honoring yoru warranty. Most companies void the warranty, as they have "smoking" in the warranty statement.
The nicotine residue is sticky, which can clog the vents, filters, attract dust. This can cause the wheel to slow down. If the wheel slow down, that is one cause of the wheel going out of sync.
If you want projectors to work in a smoking environment, you need an enclosed box around it that can clean the air that is going in the projector.
I use to write repair manuals for projectors. The wheel out of sync would not cause the image to turn green, unless the wheel actually got stuck on green. A green image usually means there is an issue with the mainboard, which contains the video processor and controls the color wheel.
I would seriously suggest switching to an LCD projector. LCD projectors do not have any moving parts besides a fan.
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Title Post: Question on native resolution of DLP projectors...?
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Rating: 100% based on 99998 ratings. 5 user reviews.
Author: Unknown
Thank FOr Coming TO My Blog
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