http://cgi.ebay.com/ws/eBayISAPI.dll?ViewI...5740224817&rd=1

if usable this could be the start of a really compact projector with the same resolution as the 5" PS One based projects I have seen.

Thoughts?

Provided you can strip the LCD from its frame/housing leaving only the glass portion, yes, I suppose you could use it.

Also, a good thing about that screen is you may not need any fresnel lenses. I am not experienced with the lumen lab objective triplet, but it may have the capabilities of capturing the entire 2.5" LCD without the use of a collector fresnel, mine could. And with it being so small, you wont even need a collimator fresnel, as you will be able to backlight the entire screen with high efficiency. Your only problem is definition, the ebay description does not advise this specification, and it is more than likely very low. I think image quality wont be as good as a PS LCD, infact, I know it wont. But wow, you could make one seriously small projector

that is a nice looking display, and even a descent price, but they list it as having a resolution of 336960 (pixils??).

what exactly does this break down to in normal terms, like 320X480? anyone feel free to take a guess even.

336960 /3 colors = 112320 /234 = 480

480x234

Oops, I missed that on the ebay page, not too bad for its size...

Curious... what is the highest resolution 2.5" and 4" screens that are available? I was over at diyaudio looking at the slide projector rigs and they are pretty interesting although a bit pixel-y. Is there such a thing as an 800x600 res 2.5" screen?

Sony uses LCD's (x 3, RGB) measuring just 1" and producing 1024x768 each, thats a combined RGB total of nearly 2.36 million pixels from an LCD of only 1". But this is the very reason you will pay way over $35k for a projector of this calibre. I have also seen LCD's a little bigger than that producing 1280x1024 in top-end projectors, they are out there.

Sure, you can get very small LCD's with massive resolutions, but with equally massive prices. Its upto you where you stop, or maybe its down to your wallet...

It looks like it takes some kind of adapter cable to use composite, although it does come with it.



This was listed on one of the other ones they sell.

Forgive me, as this question isn't meant to feed rumors that i am contmeplating whether or not this pj is worth building ornot - BUT, with that in mind:

what is the advantage to LCD over DLP?

it certainly isnt' contrast, and you can buy small 1280x720 native res projectors in either lcd or dlp for around $2-5K

am i missing something? - if 1024x768 1" lcd's are that expensive, how large are the $2K commercial ones using, and how small would this $35K one be?

All I meant by that is; Sony have a projector, on the market, at around $35k. The resolution of which is 1024x768. The point being - You can get very small LCD's, with very big resolutions (this thread origin)

But in an attempt to answer your questions, Ricoks. Basically, its $35k because it has a "Sony" badge on it and they are a very big, well established company, and when they chuck out something this expensive - it must be good!! Its not only size that determins a projectors price tag, actually, the one mentioned is about 37kg, very heavy. It does however have amazing capabilities in the reproduction and adjustment of greyscale, a task your $2-5k projector would find impossible to compete with. Along with MANY other outstanding features/specs.

If you check the price of 8x50 Swarovski binoculars you will find they are a bit more expensive than the equivelent Tasco model. The reason is very simple. When you look through a pair of Tasco binoculars, it suddenly changes to a foggy day! Look through the Swarovski's, and they behave like they're your very eyes, crisp - sharp - perfect!! Tasco is crap, Swarovski is the best. We can apply the same scienctific principal to LCD projector manufacturers

Its all about optics, brightness. The guys that build your $2-5k projector dont have a clue, and dont want you to pay for it either. Sony pay Zeiss to make/design their optics, a VERY expensive choice. Pay $35k on a projector and you can expect perfect images many times the quality of anything on the market at $2-5k.

DLP's (Digital Light Processing) are generally better, I think they carry the most benifits (except price). Unlike LCD's, DLP "chips" are made up of tiny mirrors, each is a pixel. Light does not pass through a DLP chip, it is reflected from its surface, into the lens light path (pixel on) or away from it (pixel off), a spinning colour wheel determins its colour. They perform better for home cinema, reduced pixelation, better colour saturation and smaller size. but at the moment, cost a lot more. I think DLP's are an AMAZING technology!!!! But this is all I understand about them - At the moment...


Having said all that about paying for what you get, you will get better price/performance ratios than a Sony. $35k is A LOT of cash and these are all examples, should be taken hyperthetically, and generally. The choices and specs out there are just unreal.