[conan48]

Is there a reason that they can only make 720p 3D DLP projectors? I have seen plenty of 720P 3D DLPs but not one 1080p. Is there some sort of technical limitation that is preventing the higher resolutions?


Im about to order an Acer 5360 720p 3D DLP projector for a whopping 600.00 witch features 2500 lumens! Why can't I buy a 1080p model

 

[mike2060]

I believe Digital Projection has some. Most notably their Titan series.

 

[mark haflich]

Sim2 has two 3 dlp 1080p machines. Besides Digital Projection there also is Barco and Projection Designs. Your problem will be the costs because all these machines are plus $30K MSRP, some a lot more. There are a variety of reasons for the costs not the least of which is what Texas Instruments charges for the chips when they are licensed to be used in a 3 chip design. I missed the 3d part of the question. see the posts below. the digital projection machine will input 1080p 120 and feed it to the 3 Dlps at 60 alternating and syncing with shutterglasses. The machine is north of $60K.

 

[stanger89]



Quote:
Originally Posted by conan48 /forum/post/18196648


Why can't I buy a 1080p model

Because 3D is still barely newborn at this point? Practically no sources yet. It will all come with time. I'd expect a bunch to be anounced at CEDIA this fall to go with the 3D BDs and BD players which are also coming out later this year.

 

[Almost60]

I know that Texas Instruments suspended the developmente of DMD 1080p 120Hz but i don't know why.

 

[stanger89]



Uh, the LED machine ones run at something like 2880Hz (48x color wheel equivalent).

 

[Almost60]

To reproduce an image of 60Hz. Imagine what need for 120fps...

 

[stanger89]

You shouldn't need any more. For most people 5x or 6x color wheels are plenty to avoid RBE being an issue, LED machines run 8x that. The DMDs are plenty fast enough for about anything.


What maybe happened (assuming your info is correct), is that they stopped development of a colorwheel based 120Hz system. I'm guessing, based on the lack of faster wheels, that it's impractically difficult to sync a mechanical wheel faster than about 6x, and at that speed, with the sync and every thing, the system has a hard time hitting 8bits/color at just 60Hz. Thus it would be very difficult to maintain the color wheel speed sufficient to mitigate RBE, maintain color depth and keep everything in sync at 120Hz frame rate.


Maybe they saw LED illumination coming and decided it wasn't worth pursuing a low-cost colorwheel based 3D solution when 3-chip is acceptable for the corporate market and LED will be available for the home one?


Or maybe I'm way off base and CM will come in and give me a V8 smack

 

[Dennis Erskine]

...because 3D is 720p.

 

[Almost60]

@stranger89


Your talk it's plausible.

Maybe the retardation of 1080p 3D DLP it's only "marketing"...

 

[davehancock]



Quote:
Originally Posted by Dennis Erskine /forum/post/18199276


...because 3D is 720p.

Could you please elaborate? AFAIK, 3D itself can be any scan rate. 3D Blu-ray will be 1080p. Side by Side Cable/Satellite will be either 720p or 1080i. Effectively, Top/Botton Cable/Satellite will be either 360p or 540i.

 

[conan48]

We know Sony, Epson, JVC are all going to showcase their 1080p projectors at IFA and CEDIA. Any news if we will see some proper 1080p DLP 3D projectors at any of these shows? It seems as if TI has completely given up and it's strange as DLP is perfectly suited for 3D. With it's very fast refresh rate it produces 0 ghosting. The 3D on my Acer 5360 720p model has better 3D with less ghosting then any flat panel LCD and even better the the Panasonic VT25 series plasma. I wan't a high end home theatre quality 3D projector so I can get rid of the Acer. Right now I use my Acer for 3D and my Epson 6500 for 2D.

 

[walford]

The current generation of DLP 3D PJs are designed to support the Nvidia 3D player for PC games which outputs only in 720 frame sequential mode.

 

[conan48]

Yes, but Nvidia supports 1080p 60hz per eye on their LCD monitors such as the Acer, and Samsung.


I'm just wondering why there have been no announcements or rumours that a 1080p 3D DLP projector even exists for Home theater use not just for Nvidia. Seems kind of strange. Thats why I wonder if it's even possible to create a 1080p 3D DLP projector. Maybe it's a limitation of the colour wheel or something.


BTW, it's an HDMI bandwith limitation that can't handle 1080p 60hz 3D. If they made a projector or TV with a Dual Link DVI port then we would be all good. 1080p 60hz no problem.

 

[walford]

JOHNnDenver is outputting 120fps frame sequentiial 3D content using Nvidia 3D player to his 720p Projector from 3D Blr-Ray disks.

 

[stanger89]



Quote:
Originally Posted by conan48 /forum/post/19000810


I'm just wondering why there have been no announcements or rumours that a 1080p 3D DLP projector even exists for Home theater use not just for Nvidia.

There haven't been any announcements of 1080p 3D projectors this year at all, the commonly talked about ones (Panasonic, JVC, Sony) haven't made any announcements.


The same logic why we assume they will have 3D machines applies to DLP IMO. What I mean is I'd expect pretty much any projector (DLP or otherwise) announced at CEDIA or IFA to be 3D capable, or at least I'd expect all manufacturers making announcements to announce 1080p 3D machines.

Quote:
Seems kind of strange. Thats why I wonder if it's even possible to create a 1080p 3D DLP projector. Maybe it's a limitation of the colour wheel or something.

It's not, DPI has 3D capable 1080p+ DLP machines, including single chip ones:
http://www.digitalprojection.com/Bro...1/Default.aspx

Quote:
BTW, it's an HDMI bandwith limitation that can't handle 1080p 60hz 3D. If they made a projector or TV with a Dual Link DVI port then we would be all good. 1080p 60hz no problem.

There's no point though, as far as video goes, there are no 1080p60 sources, none. Only 1080p60 sources are game machines (or computers). HDMI 1.3 can do 1080p120. HDMI 1.3 upped bandwidth to 10.2Gbps, 1080p120 is only about half that.

 

[Lee Stewart]

IMO, anyone expecting to see a $2K or $3K 3D 1080P DLP (or for that matter any light engine) 3D projector at CEDIA is going to be in for a shock - as in none.

 

[stanger89]

Oh, I think it's possible, there could be a W7000 (for example) with 3D capability, that's actually one of the more likely ones.

 

[peter0328]



Quote:
Originally Posted by Lee Stewart /forum/post/19004048


IMO, anyone expecting to see a $2K or $3K 3D 1080P DLP (or for that matter any light engine) 3D projector at CEDIA is going to be in for a shock - as in none.

I'll pay $6,000 for a 1080p DLP ASG 3D projector. It needs to support HDMI 1.4 and have a dual-link DVI port for 3D Vision.

 

[conan48]

Stranger, nice link proving that single chip 3D DLPs do exist. As for the Sony and JVC, both have been seen in Europe, so while not official announced they exist and will be out this year. I haven't heard a peep from Optoma, Benq, Infocus, or any other big DLP brand. You would think someone would have leaked or seen something if they are going to launch this year.


Yes 1080p 60hz is a huge deal for me as my primary use will be PC games ala Nvidia 3D vision.


I can only pray that Nvidia is trying to get at least a few manufactures to add an "outdated" Dual link DVI port that will alow 1080p 60hz. Heres hoping that the DLP camp has been really good at keeping secrets this year.


I still can't believe how perfect the 3D is on my 700.00 Acer projector. DLP was designed for 3D.