CurtPalme.com Home Theater Forum

emdawgz1 · Joined: 14 Mar 2006 Posts: 7949

And I think it's LED projectors.

While I was in florida I picked up a HT mag and it reviewed a M-vision Cine LED Projector... It sounded good.

So today i was at my old shop looking at speakers and iI mentioned LED Pj's and the guy sys "Yeah we just got the Runco 2 days ago. It's in here..."

So we go in and he fires up the Runco Q-750i.

Now please, no comments about Runco or whatever. I'm just talking about the tech...

It was fresh out of the box, no calibration at all. The manufacturer specs a pure white screen. Light controlled room, 'cause it wasnt real bright. We watched "National Treasure 2" on the kaleidescape( i wont go into how nice that was)

What I'm shocked to say was that it had black levels....REAL LIVE BLACK LEVELS......

it was good. Has anyone else seen an LED PJ???

What do you think.

http://www.runco.com/_webapp_2714306/QuantumColor_Q-750i

http://www.soundandvisionmag.com/hdtvs/3312/digital-projection-m-vision-cine-led-projector.html

**Curt Palme** · Posted: Sat Mar 27, 2010 9:43 pm Post subject:

I had strong hopes for LED as well. I figure it's indeed the way to go. Liked what I saw at CES 2 years ago with prototype flat panels. Looked nice.

Pricing is still high of course, that will change within 5 years. I don't understand how the manufacturers will stay in business though. Right now price margins are to the bone from what I know, and retailers and manufacturers are relying on bulb sales or projector sales within 5 years of selling you a unit. If the LEDs do indeed have say a 20K hour lifespan for the 'bulb'...err....LED, and if the electronics are reliable, then expect say a 15 year life out of an LED projector. Assuming the price point drops on LEDs like everything else, won't that kill some manufacturers?

garyfritz · Joined: 08 Apr 2006 Posts: 12088 Location: Fort Collins, CO

I've been hoping since we first heard of them that LED projectors would be the future. I'm not gonna drop $15k on a Runco, but I'm sure they'll get more reasonable soon. Curt's got a good point, though... these projectors don't have the profit margin that CRT projectors had.

emdawgz1 · Joined: 14 Mar 2006 Posts: 7949

Well I'd assume the manufacturer will use some basic accounting and not set the price BELOW THEIR COST MARGIN!

It amazes me that they do that with other product.

**Curt Palme** · Posted: Sat Mar 27, 2010 11:37 pm Post subject:

No, most likely not, but still, if all of a sudden you as a company starts selling something with a 15 year lifespan, and your business model works with that of a 5 year lifespan, you're gonna have a problem sooner or later..

**kal** · Posted: Sun Mar 28, 2010 12:01 am Post subject:

Spanky Ham · Joined: 22 Mar 2006 Posts: 5643 Location: Comedy Central

emdawgz1 · Joined: 14 Mar 2006 Posts: 7949

WanMan · Joined: 19 Mar 2006 Posts: 10270

Ok, so the light source is provided by LEDs. How well can they be controlled in order to have a smooth gradient between fully Off and fully On? How many LEDs are there and are they all essentially white LEDs, are the three-color LEDs, or some sort of matrix composite of RGB?

I understood (I think) the notion of high-ANSI CR due to conditions in which off-mirrors were simply directing reflected light into a trap instead of a lens assy, but this was always with an always-ON light source. If the LEDs are not always ON, how well a <100% peak light output setting affect ANSI CR (in favor of making better On/Off CR)?

Also, I am not one of those optimist types. I still have to consider the rainbows. I still want SED/FED.

dvh99 · Joined: 25 Dec 2009 Posts: 2158 Location: nederland

good colour quality and black levels are 1 thing but how do they perform with quick motion.
i play the ps3 on my 9500 ultra and its just so fluent without a single (hapering) dont know the english word.
before i got my crt i was the market for a dila from jvc 550 or 750 but i let it go by because i didnt like how they dealt with fast motion.
my pj is mainly used for games and occasionaly for movie say 90-10.
sure i have to tweak it a little further but thats part of the fun with crt.
i will retube the pj end 2010 and hope to be good for another 5 years at least no matter what technology will arise.

**kal** · Posted: Sun Mar 28, 2010 1:50 pm Post subject:

If LED projectors look anything like the new RGB LED based laptop I just bought (Dell Studio XPS 16) then I'm sold! The colours are phenominal compared to all other regular laptops I've used in the past.

Kal

Spanky Ham · Joined: 22 Mar 2006 Posts: 5643 Location: Comedy Central

Wan,
Most of those questions were answered in the other thread a couple of months ago.

DVH,
Motion is the one big area that CRTs still reign supreme. I didn't look to closely at how the LEDs were handling motion, as the content wasn't chosen by me. Scott could probably answer that better, but my guess is it still falls short.

Kal,
That is cool. I have been thinking of getting a new LED laptop.

Sparky015 · Posted: Sun Mar 28, 2010 9:57 pm Post subject:

Interesting that VDC is working on an LED projector. Clearly they see that technology as the replacement to CRT. It'll be interesting to watch the prices as well. Hopefully something affordable in 5-7 years.

Spanky Ham · Joined: 22 Mar 2006 Posts: 5643 Location: Comedy Central

Here is the thread:
https://www.curtpalme.com/forum_archived/viewtopic.php@t=19508.html

WanMan · Joined: 19 Mar 2006 Posts: 10270

macgyver655 · Joined: 22 Aug 2007 Posts: 8508

Spanky Ham · Joined: 22 Mar 2006 Posts: 5643 Location: Comedy Central

Mac,
I am not sure if you were directing that at me, but I am aware of the difference.

macgyver655 · Joined: 22 Aug 2007 Posts: 8508

cmjohnson · Joined: 03 Apr 2006 Posts: 5180 Location: Buried under G90s

I have seen VDC's LED-lamped 3-chip DLP projector in operation.

It's impressive. The black level is even good. (Not outstanding, but actually very good and quite watchable.) The color gamut is incredible. Its motion blur reduction mode WORKS LIKE MAGIC.

The lamps are not modulated. It used Phlatlight high power LEDs (120 watts each nominal!) and they are simply used as separate
continuous light sources for a 3-chip DLP engine. All light modulation is accomplished normally as far as DLP engines go.

What we have here is a projector that could well last 50,000 maintenance-free hours. Particularly if the optical core is hermetically sealed
so there are no dust and dirt issues to contend with. Lifespan-limited components are likely to be cooling fans and (some) electrolytic
capacitors. The rest should last....as long as any electronics do, I guess.

Would I REPLACE my Marquee with one? No. But if I was looking for another projector and had the budget, I think this product would
be a top contender for my money. Having no lamps to replace and no CRTs to burn out makes it a pretty attractive product, particularly when you add in the fact that the picture quality is genuinely excellent.

CJ

JustGreg · Joined: 07 Mar 2006 Posts: 3098 Location: Kenosha, WI

Here's one for those of means...$5K off the top for an open box Q-750i never used.

http://milwaukee.craigslist.org/ele/1737664587.html