Homemade “3 chip” DLP - Will it work?

[b_panther_g]

What would happen if...

1)You took 3 average DLP projectors...

2)Fed them the same video signal and...

3)Gave each only 1 channel or line from an RGB component cable???
​

Will you (roughly) have the picture quality of a 3 chip DLP projector?

Will it out perform/under perform a single DLP projector? If so, by how much?

What about an LCD projector? If so by how much?

Will it even work?

And the most important question is....

Will the Audioholics give it a try and let us know???​

Just a thought,
BP

PS. I know this idea is out there. But can we please try to keep the comments civil and on topic. Thanks.

 

[mtrycrafts]

What would happen if...

1)You took 3 average DLP projectors...
2)Fed them the same video signal and...
3)Gave each only 1 channel or line from an RGB component cable???
​

Will you (roughly) have the picture quality of a 3 chip DLP projector?
Will it out perform/under perform a single DLP projector? If so, by how much?
What about an LCD projector? If so by how much?
Will it even work?
And the most important question is....

Will the Audioholics give it a try and let us know???​

Just a thought,
BP
PS. I know this idea is out there. But can we please try to keep the comments civil and on topic. Thanks.

Not sure if the same principal applies as on a 3 gun CRT projector.
Certainly you'd have to precisely align the three projectors pixel for pixel.

 

[Adam]

Certainly you'd have to precisely align the three projectors pixel for pixel.

Excellent point! You'd almost surely need a rigid fixture with adjustable mounts to hold all three projectors to maintain alignment once you achieved it - which would be custom made or home built because I doubt that Crutchfield planned on people trying this.

 

[AcuDefTechGuy]

Not only will you have to align all the pixels perfectly, which is practically impossible, but combining 3 bad pictures will still give you one bad picture and a headache.

 

[Seth=L]

Not only will you have to align all the pixels perfectly, which is practically impossible, but combining 3 bad pictures will still give you one bad picture and a headache.

That's offensive.

 

[majorloser]

There's few problems with this idea.

First, by going with RGB you will be in the analog realm of video, so video quality will not be up there with DVI or HDMI. And you will not be near the quality of VGA since you will not have the H and V sync inputs.

Second, all single chip DLP projectors use color wheels. You'd have to lock each projector on the respective color to prevent sync problems between each projectors wheel.

Third, alignment and keystone problems with three projectors would be a &%$@+.

The LCD projectors would not have the color wheel issues, but would have the others.

 

[10010011]

Component video is not RGB it is Y-Pb-Pr

Y carries luma (brightness) information.
PB carries the difference between blue and luma (B − Y).
PR carries the difference between red and luma (R − Y).

A green signal is not sent as the color can be interpolated using the blue, red and luma information. This is done to save bandwidth.