DLP??

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QwertyJuan

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DLP.... what is it?? My friend is looking at perhaps buying a 61" DLP screen and using it as a monitor.... some dude at best buy :rolleyes: told him that DLP was the best thing since the monochrome screen!! :D

No, he did say it was the best out there... is that true??

Thanks, QwertyJuan
 
From what I have read the reaction time of DLP is really great but I would say the pixel pitch on a 61" screen even at 1920x1080 is going to be through the roof.
 
Yes I realize that.... but what if you were going to use it at 20' away..... would you notice it??
 
The native resolution on the one he was looking at is 1280x720 I guess..... pretty low for 61" eh?? Even so... what do you guys think about it at 15'?? I said 20', but it would be more like 15'??
 
I have a DLP projector displayed on a 106" screen. I sit about 5 feet away from it and ponder why anyone would invest so much in a large screen and then entirely negate the benefits by sitting 20 feet away.

I am satisfied with DLP technology. The greater contrast ratio and better viewing angle makes DLP a clear winner over LCD, for me.

Read up: http://en.wikipedia.org/wiki/Dlp

1080p would be more desirable than 720p, of course, but consider what content you'll be displaying. If you want to hook up your PC to read text, then 1080p is a must. If you want to play XBox 360 or Playstation 3 games, or watch DVD movies, then you would see little benefit from 1080p. HDTV is almost always 720p as well. 1080p is good for HD-DVD/Bluray and for computers, at this time.
 
Scyles said:
I have a DLP projector displayed on a 106" screen. I sit about 5 feet away from it and ponder why anyone would invest so much in a large screen and then entirely negate the benefits by sitting 20 feet away.

I am satisfied with DLP technology. The greater contrast ratio and better viewing angle makes DLP a clear winner over LCD, for me.

Read up: http://en.wikipedia.org/wiki/Dlp

1080p would be more desirable than 720p, of course, but consider what content you'll be displaying. If you want to hook up your PC to read text, then 1080p is a must. If you want to play XBox 360 or Playstation 3 games, or watch DVD movies, then you would see little benefit from 1080p. HDTV is almost always 720p as well. 1080p is good for HD-DVD/Bluray and for computers, at this time.
Click to expand...

This would be for text..... so you are saying that 1080 is a must eh?
 
Definitely try before you buy. Go to the store and check it out. A common problem with DLP is that it causes the "rainbow effect" for some people. Some (like me) are susceptible to it; others are not. I like to think that people who see the rainbow effect do so because of their superior and highly-refined visual acuity, being able to pick out individual frames of DLP projection where mere humans can not. But that's just me :D

Other than that, there's a lot to like about DLP for movies--higher contrast ratio, nice deep blacks and minimal shadow crushing, and vibrant colors. I've never used one as a computer monitor, but I don't see why it wouldn't work just as well as an LCD for that purpose.
 
MentatYP said:
Definitely try before you buy. Go to the store and check it out. A common problem with DLP is that it causes the "rainbow effect" for some people.
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From your link: "The "Rainbow Effect" is unique to single-chip DLP projectors."

Definately make sure its not a single-chip DLP. That would indicate its an older model. Newer DLP's use 3-chips, and I've yet to hear of anyone who has noticed the rainbow effect on one of these (I've got friends who say they can see rainbow effect on other DLP's, but not on my 3-chip one).

If you're thinking of using a 720p display for your PC, you should definately take MentatYP's advice and try to check it out at the store. Pixel pitch varies among different models. You may be able to find a 720p model to be acceptable, if you sit far away from it.
 
Scyles said:
Definately make sure its not a single-chip DLP. That would indicate its an older model. Newer DLP's use 3-chips, and I've yet to hear of anyone who has noticed the rainbow effect on one of these (I've got friends who say they can see rainbow effect on other DLP's, but not on my 3-chip one).

If you're thinking of using a 720p display for your PC, you should definately take MentatYP's advice and try to check it out at the store. Pixel pitch varies among different models. You may be able to find a 720p model to be acceptable, if you sit far away from it.
Click to expand...

AFAIK, there are no 3-chip DLP anythings for under $10,000. If the rainbow effect bothers you, look at the newer mitsubishis/samsungs (less rainbow), or the LED-based samsungs coming out onto the market this spring (should have no rainbow).

The LCOS/SXRD is a good alternative. 3-chip (sony) means no rainbows; I think it gives a smoother picture than DLP. PLUS you get an actual 1920x1080 resolution, not the "wobbled" 960x1080 DLP has (may not matter that much anyhow).

Advice -- don't get a 720p DLP. Most of them aren't full 1280x720 but that 'wobbled' 640x720. The wobulation increases resolution enough to have jaggy-free edges, but doesn't help actual detail that much.

My 2 cents...
 
Sorry, I meant 3-segment wheel, not 3-chip. My projector has a 3-segment wheel.
 
venm11 said:
AFAIK, there are no 3-chip DLP anythings for under $10,000. If the rainbow effect bothers you, look at the newer mitsubishis/samsungs (less rainbow), or the LED-based samsungs coming out onto the market this spring (should have no rainbow).

The LCOS/SXRD is a good alternative. 3-chip (sony) means no rainbows; I think it gives a smoother picture than DLP. PLUS you get an actual 1920x1080 resolution, not the "wobbled" 960x1080 DLP has (may not matter that much anyhow).

Advice -- don't get a 720p DLP. Most of them aren't full 1280x720 but that 'wobbled' 640x720. The wobulation increases resolution enough to have jaggy-free edges, but doesn't help actual detail that much.

My 2 cents...
Click to expand...

This 'wobulation' you are talking aboot... you mean that DLP uses HALF res, and blows it up to full screen??
 
QwertyJuan said:
This 'wobulation' you are talking aboot... you mean that DLP uses HALF res, and blows it up to full screen??
Click to expand...

I think he means rectangular pixels, that's why 640x720 still gives a wide image even though the horizontal pixel count is smaller than the vertical. OR he could be talking about something completely different...
 
I have my htpc hooked up to a samsung 50" DLP. Its an older model that can display up to 1080i, however when connected to a PC, the highest you can get your resolution will be ???x720, I forget what the first part of the resolution is set to on that PC so that it will display properly. I run Windows Media Center edition. Movies and the text in the media center gui look good. Text however is hard to read, up close and sitting back about 10 feet on my couch. Sometimes my girlfriend and I will look up websites for home improvement so that I can show here design ideas. It works great as long as I am just showing pictures on the web and already know what to click on so I dont have to sit there and squint my eyes. I have seen a system on a 42 inch with 1080p and the text was nice and crisp and easy to read. So speaking from experience I would not get the 720p model even though it will be cheaper. Go with the 1080p, if the price is too steep, then wait a couple of months when there are not many 720p models left and the 1080p will go down right much.
 
dmanrevived said:
I think he means rectangular pixels, that's why 640x720 still gives a wide image even though the horizontal pixel count is smaller than the vertical. OR he could be talking about something completely different...
Click to expand...

hi... just noticed this (a week later).

Wobulation -- they display odd columns as 640x720, then shift the image 1/2 pixel width and display the even 640x720 columns. This is done with a special mirror, and is similar in principle to interlacing. It allows them to have a chip with fewer pixels. They call it "smoothvision" because the resulting overlapping pixels tend to de-alias edges, this making edges appear smoother at the expense of some overall detail. It isn't necessarily less sharp than the lcos/sxrd because the dlp is faster and much more precise.

Very few products have the discrete-pixel chips these days, mostly just projectors.
 
Mits 57 DLP 1080P set here and I have never seen a rainbow. I use it for blue ray movies, HDTV and PS3 and i am very satisfied with it.

Here is a pic , I could not resist hooking up my rig when i first got it just to see what it would do Camera flash lower right corner and now the stand is full of the obligatory digital surround projector and ps3




lostcoast2.jpg
 
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