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Screen vs wall

470 Views 4 Replies 3 Participants Last post by Dominic Chan, Apr 9, 2015

zzoo

Discussion Starter · Apr 8, 2015

I have the image projected on white wall for more than a week now and I'm quite satisfied with the quality. I consider to get a screen to get a even better image, but I've seen some videos on YouTube and some comments say that the screen is not necessarily better than the wall. Hence, I have doubt now. I don't want to spend few hundreds dollars and effort to install it, then the difference is negligible.

So, your feedback would be greatly appreciated. Is anyone here projecting the image on the wall first, then install the screen later and find a significant improvement in image quality ? Or vice versa, anyone has regretted to install the screen ?

Thank you.

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Dominic Chan

· #2 · Apr 8, 2015

zzoo said:
I have the image projected on white wall for more than a week now and I'm quite satisfied with the quality. I consider to get a screen to get a even better image, but I've seen some videos on YouTube and some comments say that the screen is not necessarily better than the wall.

There's no question that a good screen will provide a better quality image than a "plain" wall. Having said that, I have a wall painted using a Sherwin-Williams super-white paint which has a very neutral colour and good contrast. I put a 110"-wide 2.35 aspect ratio black frame around it and the result is excellent, certain better than the cheap screen which have a visible surface texture and dubious colour neutrality.

The main draw back with a painted wall is that it's hard to make it perfectly smooth, unless you spray-paint it. However, the slight "orange peel" effect is noticeable only with light coming at an angle, which is not the case with projected images.

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Craig Peer

· #3 · Apr 8, 2015

Dominic Chan said:
There's no question that a good screen will provide a better quality image than a "plain" wall. Having said that, I have a wall painted using a Sherwin-Williams super-white paint which has a very neutral colour and good contrast. I put a 110"-wide 2.35 aspect ratio black frame around it and the result is excellent, certain better than the cheap screen which have a visible surface texture and dubious colour neutrality.

The main draw back with a painted wall is that it's hard to make it perfectly smooth, unless you spray-paint it. However, the slight "orange peel" effect is noticeable only with light coming at an angle, which is not the case with projected images.

I used to do a lot of drywall work. It is difficult to get a wall perfectly smooth. Screens are available with very smooth high tech fabrics that send more light back to the viewer and less on the walls and ceiling / floor. Hard to do that with a painted wall. That said, a wall can certainly work - especially while you decide exactly which screen and how big a screen to get.

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zzoo

Discussion Starter · #4 · Apr 9, 2015

One of the main reason that I might want a screen is for the gain as I want the image brighter. I wonder what's roughly the gain of white wall. If the gain is already about 1.2 or 1.3, then I may not need the screen.

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Dominic Chan

· #5 · Apr 9, 2015

zzoo said:
I wonder what's roughly the gain of white wall. If the gain is already about 1.2 or 1.3, then I may not need the screen.

It depends on the paint; it's most likely less than 1. If you view the projected image from different angles and the brightness changes significantly, then it may have a higher gain.

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