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Orko
Digital Hippie

Registered: Nov 2002
Location: Toronto, Ontario, Canada
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| quote: | Originally posted by r5a
@ Orko:
DLP? Prons and Cons of it?
And I think that about does it! Thanks alot. I'll do some googling and wikipediaing later today to get some more detailed junky stuff. |
DLP:
- A new way of projecting stuff really big. Before for projectors you would have a tiny CRT, and a magnifying glass would blow up the picture and project onto the screen.
- With DLPs, a single beam of light is shot at a rotating colour wheel. The wheel has the three primary colours, and for each frame, each colour is drawn at one time. They do it so fast that all three colours are drawn seperatly, and it just looks like one picture.
- When the light passes through the colour wheel, it then hits a mirror which sends the light to the right part of the screen.
Pros:
- Cheap, like most projectors are.
- Nice quality compared to old projectors.
- They dont burn in like regular projectors. With the old style you could easily burn in that tiny CRT, because it was so bright. here you dont really have to worry.
Cons:
- Replacement costs. For a projector, you have to replace the bulbs because they burn out. That could set you back 300-600 depending on the models.
- As Cale said, you could also have to replace the colour wheel, but in my experience its more the motor that drives the wheel that is the problem. It becomes cloged by dust, and could seize up.
- So in the end, they are cheap to buy, but they have replacement costs.
- Rainbow Ghosting. Because the colours are drawn one at a time, there are some side effects. If you get a chance to see a projector up close, go up to the wall its being projected at, and wave your hand back and forth. You will see each different colour. Now this can also apply to fast action shots, and if you move your head back and forth. So the picture/colour isnt as defined as other technologies.
Projector vs TV:
- Essentialy they are the same, but the execution is a tiny bit different.
With projectors, you draw the image on the wall, and with TVs, its on the built in screen. Either way you have a bulb, a colour wheel, and tiny mirrors.
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Dec-22-2005 18:29
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Orko
Digital Hippie

Registered: Nov 2002
Location: Toronto, Ontario, Canada
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Honestly, with the new stuff is where I start to loose touch. I would definitely suggest reading a dedicated HD forum, like http://www.highdefforum.com/
The people on there are more educated about specific tvs and models.
Plus I will never buy another Sony product again, because I really do not agree with their business practicies towards the consumer and preserving market stability.
But in terms of technology, and cost/quality(because I dont have alot of money) i would go with a projector, and not a projection TV. If you have the space, they are great because first of all, you can scale them to what ever size you want, and you can usually hook up a computer with no problems.
If you play a lot of video games, projection TVs are very dangerous, because they tend to burn in. I think with LCD projection tvs, that problem maybe solved due to the fact that they dont use a CRT projection lamps anymore.
I still need to get back to Tygon, so hopefully i can do some reading this week, and get back to both of you.
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Dec-25-2005 22:37
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