DIY Projector Screen - urgent help!!!

[tma]

.... All 3D projectors use active 3D technology and it needs to be verified whether the active 3D glasses that work with TV will also work with PJ. I believe that they logically they should but who knows? ...

There is no common standards established yet for 3D display/glasses format - it would take some more time to settle down among the various vendors, if at all...

However, currently we can see the 3d evolution starting from Analglyphs, to signalling based wired/wireless on IR, Bluetooth and DLP-Link based options. This is based on the technology aspect. Now assuming even if two vendors use the same technology (eg IR) the signalling codes used by them should also match for the glasses to be interchangeable / usable.

Given the above situation, its highly unlikely that, in general, the 3D glasses from one Vendor are compatible with another..

The only bright option on the horizon currently seems to be the DLP Link based tech. This is based on the DLP Chip itself and hence more or less independent of any vendor implementation/customization. Thus it would be a safe bet to assume any DLP-Link 3D glass will work with any DLP-Link enabled device irrespective of the vendor.

Also as the hardwork of implementing this type of 3D is in the DLP chip or display itself, the 3D glasses are much simpler, lighweight and hence more affordable.

I think the best option for 3D as of now is to go with the following:

1. Any display (TV/pj/Monitor) that can support 120Hz refresh at decent enough resolution
2. DLP Link 3D glasses.
3. If the display itself dosent support 3D decoding, then the display can be driven with a basic 3d graphics card driving the display at 120hz on a HTPC/Laptop + s/w to decode the 3d files

The above would be a decent starting point and as close to the 'theater effect' as possible...

I would also like to hear if anybody has a better option for 3d as of now..

 

[projectorguru99]

rajdeep PIoneer in mumbai is not a reliable screen supplier. I know the customers whom he has supplied motorised screens at cheaper rates but the screen are the lowest quality you can ever see. He shows good samples but doesnt supplies same. I suggest go with Grandview or with reliable suppliers like Varay, Exodus. With Pioneer trust me you will regret

 

[projectorguru99]

Arnprasad : 3D glasses for TV and Projector are different. For projector you have to use 3D DLP link active shutter glasses or you can even use NVidea glasses. But DLP Link active shutter glasses are better. As far as 3D projectors are concerned you can get a 3D ready Projector Viewsonic starting from 45k with HDMI. Also please understand that 3D ready projectors need emitter if you have to connect it with 3D Blu-Ray Player. IF you want to go with PC set up you will have to get a Quadro Graphic Card for 3D.

 

[tma]

rajdeep PIoneer in mumbai is not a reliable screen supplier. I know the customers whom he has supplied motorised screens at cheaper rates but the screen are the lowest quality you can ever see. He shows good samples but doesnt supplies same. I suggest go with Grandview or with reliable suppliers like Varay, Exodus. With Pioneer trust me you will regret

@pjguru: Just as in other posts you are making statements without any substance/proof. You seem to be biased to Varay - do you have any association with them?
Using slander is really not an intelligent way to bolster your own argument/business.

 

[tma]

... Also please understand that 3D ready projectors need emitter if you have to connect it with 3D Blu-Ray Player. IF you want to go with PC set up you will have to get a Quadro Graphic Card for 3D. ...

3D ready projectors, if they support DLP Link, do not need an emitter or other hardware. Most DLPlink 3d ready projectors do not have an option for separate 3d emitters and can only use a PC/laptop with s/w player for visualizing 3d content. The PCs graphics card (Quadro or not) should drive the display at 120Hz.
More info on dlplink:
DLP Link - 3D Ready Projector - 3D DLP 3D Active Glasses - Classroom Projector - Education Projectors | DLP - Texas Instruments

If the Bluray player outputs at 120Hz and in Framesequential format only then it can be used with the 3d ready DLPLink pj with DLPlink glasses to view 3D.

 

[inshadesofgrey]

Arnprasad : Also please understand that 3D ready projectors need emitter if you have to connect it with 3D Blu-Ray Player. IF you want to go with PC set up you will have to get a Quadro Graphic Card for 3D.

This is obviously not true.

The whole concept of DLP-link is built around the fact that the glasses interact with whats shown ON the screen and not some emitter - the FULL-3D projectors such as HD33, GT750, H5360BD only need a 3D blu-ray player/PS3 plus 3D DLP-link glasses

What you are confusing this with is the RF emitter technology, which by the way is also compatible with most NEW full-3d projectors.
3D-RF 3D Glasses

the argument then becomes between RF-emitter glasses and DLP-link but thats a whole different argument because we're not talking about tech used in specific glasses
http://www.avsforum.com/t/1397362/rf-vs-dlp-link-glasses

 

[manoj.p]

Arnprasad : 3D glasses for TV and Projector are different. For projector you have to use 3D DLP link active shutter glasses or you can even use NVidea glasses. But DLP Link active shutter glasses are better. As far as 3D projectors are concerned you can get a 3D ready Projector Viewsonic starting from 45k with HDMI. Also please understand that 3D ready projectors need emitter if you have to connect it with 3D Blu-Ray Player. IF you want to go with PC set up you will have to get a Quadro Graphic Card for 3D.

NOT TRUE.

Projector manufacturer's have implemented different technologies, just like tv manufacturer's for 3D. Below is the gist -

DLPLink - Only works on DLP projectors. DLP projectors build a sync signal (usually Red or white) and embed it in the picture. The glasses sync to that. Even then, not all DLP manufacturer's have to implement it. some do implement it and also use another tech like IR or RF. Line of sight does not matter as long as you are looking at the screen.

IR sync -Infra red, line of sight required. Epson 3010, 5010, Panasonic, JVC, Sony etc use this.

RF - Optoma HD33 and Epson new models like 3020, 5020 use this tech. Line of sight not required.

Bluetooth - Haven't seen a PJ manufacturer's use it yet. Line of sight not required.

Passive - LG has one projector, which uses passive 3D. No need for sync signal. Although needs a silver screen which retains polarization.

M3DI Universal standard - This is a universal standard. There are some projectors and glasses which are interchangeable.

Even among these tech's, each manufacture uses their own frequency for IR and RF. so those are not interchangeable.

About quality - There are quite a bit of factors which determine that. One is the LCD shutter speed of active glasses itself. Remember, the active glasses are nothing but a transparent lcd screen. The screen becomes clear and black based on sync signal. How fast it does that also makes how cross-talk, ghosting, color accuracy, contrast is visualized by the end user.