DIY black screen tests - Page 14 - AVS Forum

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DIY Screen Section

stephen77's Avatar stephen77
12:38 PM Liked: 31
post #391 of 607
05-28-2014 | Posts: 75
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spandexworld.com
stephen77's Avatar stephen77
12:43 PM Liked: 31
post #392 of 607
05-28-2014 | Posts: 75
Joined: Apr 2014
Just put in 9434 in the search. I actually just got it a few minutes ago & its perfect for this will post pics tonight after I stretch it over the mylar frame. I am a little worried it may be to thin & wont hide the seem & the imperfections in the mylar. If it doesn't guess I will have to downgrade to a smaller screen. Wish me luck.
stephen77's Avatar stephen77
02:04 PM Liked: 31
post #393 of 607
05-28-2014 | Posts: 75
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The spandex was to thin so I doubled it up over the mylar & took this pic..
stephen77's Avatar stephen77
02:05 PM Liked: 31
post #394 of 607
05-28-2014 | Posts: 75
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.right next a wall of windows that really sucks for a home theater...
stephen77's Avatar stephen77
02:10 PM Liked: 31
post #395 of 607
05-28-2014 | Posts: 75
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Sorry I keep posting didnt mean to hit reply so soon. This is the wall of windows right next to the screen . I have 10 diffusing samples to chose from so thats my next step in this project.Does an anti-glare fil help a lot cause im affraid to add any more layers in fear it will dillute the blackness.
cylab's Avatar cylab
03:59 PM Liked: 18
post #396 of 607
05-29-2014 | Posts: 106
Joined: Feb 2014
If you dont have an issue with glossyness just skip the additional layer. What about moiree. Do you see any?
Raymondd's Avatar Raymondd
04:06 AM Liked: 11
post #397 of 607
06-11-2014 | Posts: 7
Joined: Jun 2014

Hello,

 

First of all i think you guys are doing a great job in making and testing all the different options for a black screen. Some of the results are looking amazing.

Let me give a short introduction. I live in holland and i'm thinking about buying a projector the only thing that is holding me back is the quality in light condition.

This seems to almost go away with a black screen :). So i want to make my own for a resanable price offcourse. I dont have a projector yet but did researce and i think i want this one; http://www.amazon.com/Optoma-HD131Xe-1080p-Theater-Projector/dp/B00E4JEDWE   Because of the low noise, price, and (high) lumens.

 

I want to project in my living room wich has the kitchen connected to it, so i cant get it dark during the day. The room is 5meters wide and 6meter long enough size for a big screen.

From holland i think i can order from the german site. Can you advise me on what to buy, what test results so far makes the best image (for my conditions) and is also not to diffucult to make.

 

Thanks in advance,

Raymond


Raymondd's Avatar Raymondd
04:20 AM Liked: 11
post #398 of 607
06-11-2014 | Posts: 7
Joined: Jun 2014

Hello,

 

First let me say i think you guys are doing an awesome job in making and testing all the different options for a black screen, some results look amazing.

Let me give a short introduction, I live in the Netherlands and are thinking about switching my hdtv for a projector. The only thing that is holding my back is the quality in light condition.

This problem seems to almost go away with a black screen :) So i want to make my own.  I want to project in my living room wich has the kitchen connected to it so i cant get it dark during the day.

My room is 5 meters wide and 6 meters long, 3.2meters high, enough space for a big screen.

 

I dont have a projector yet, dit researce and i think i want the optoma hd131xe because of the low noise, price and (high) lumens.

Can you advise me on what to buy to make the screen, what test results so far made the best image for my situation and is not to hard to make. From holland i think i can order from the german site.

 

Thanks in advance

Raymond


Dennis Moore's Avatar Dennis Moore
12:01 AM Liked: 12
post #399 of 607
06-15-2014 | Posts: 83
Joined: May 2011
Raymond, fly me in to Amsterdam and I will take care of everything for you. Thanks.
Raymondd's Avatar Raymondd
12:47 AM Liked: 11
post #400 of 607
06-15-2014 | Posts: 7
Joined: Jun 2014
Quote:
Originally Posted by Dennis Moore View Post
Raymond, fly me in to Amsterdam and I will take care of everything for you. Thanks.
Comming from? what would be the cost of the flight? http://www.ryanair.com/ has cheap flights
Dennis Moore's Avatar Dennis Moore
01:04 AM Liked: 12
post #401 of 607
06-15-2014 | Posts: 83
Joined: May 2011
From Nebraska. Please. I love your country.
Mik James's Avatar Mik James
06:51 PM Liked: 42
post #402 of 607
06-28-2014 | Posts: 869
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Excellent work here Lets say I wanted to get the best results possible in a dimly lit room (bias lighting around the room to improve perceived projector black level) as cost effectively as possible.
Would all of the steps shown here be necessary (reflective, black layer, diffuser) or would I be able to get away with 2 of 3 and minimize wash out in a dim room?
Or is a black screen even a good idea for a dimly lit room?
HCORE's Avatar HCORE
01:17 AM Liked: 11
post #403 of 607
07-10-2014 | Posts: 22
Joined: Apr 2014
My Grafit mix Black screen
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MississippiMan's Avatar MississippiMan
05:56 AM Liked: 260
post #404 of 607
07-10-2014 | Posts: 15,294
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The screen above seems fairly small, and ambient light performance is only average.

Perhaps more information on size, PJ used, and throw distance, as well as larger photos might up it's value.
chbue070780
01:09 PM Liked: 0
post #405 of 607
08-01-2014 | Posts: 1
Joined: Aug 2014
I've been developing a rear projection glass coating system for the last two years. I know that I can alter my coating formulation for front projection surfaces but my goal was to produce something different on a professional level and after much stress and over 300 formulation variations later I have succeeded. The coating has excellent adhesion to glass and plastic surfaces, is chemical resistant (200 double rub acetone test - passed), excellent mar resistance (Konig (Pendulum) - 189 seconds), and it provides beautiful image quality with a very wide angle of view. The coating does not etch or alter the substrate and is removable though it has an estimated lifespan of 10 years. Now that I have it perfected I'm not completely sure what to do with it. I have people who have seen some of the installations I've done on storefronts who want to buy the coating from me but I've declined. I found this thread interesting so I thought that I would share what I've accomplished because with enough hard work, research, and testing anything can be accomplished.


Charlie
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MississippiMan's Avatar MississippiMan
11:46 AM Liked: 260
post #406 of 607
08-02-2014 | Posts: 15,294
Joined: Nov 2002
Good to see another effort. Not a new thing however, and it's always important to share how your doing it, and with what materials, ....if your going to use the DIY Screen Forum to bring it to light. From what you posted about having a Front Projection coating, and seeing that you just became a member, it seems like your looking for a market evaluation. If that is the case you should post over on the Mfg.Screen Forum. This Forum is dedicated to DIY solutions that are freely shared between members...
\
....but don't be offended! It does seem a natural place to get some feedback from....and DIY'ers are always a bit more tolerant that those Posters you'll find on the Mfg. Screen forum. Believe you me....I know! I too have devloped Screen coatings of all types, and I too use them as a "off Forum" source of income. But I also share ways that DIY'ers can duplicate my efforts. That spells the difference between helping....and solely "promoting".

Here is a similar effort made back in 2009 for a Seafood Restaurant and shown during considerable daylight illumination as well as at night.
The coating was a light Silver/Gray water based DIY formulated paint spray applied to 3/4s of the window area, and hit with a 2400 lumen 1280 x 800 Short Throw Projector. It was not really intended to be for use in Broad Daylight, but performed passably well in that regard.

Some Pics:

http://www.avsforum.com/forum/attach...1&d=1406999818

http://www.avsforum.com/forum/attach...1&d=1406999818

http://www.avsforum.com/forum/attach...1&d=1406999818

http://www.avsforum.com/forum/attach...1&d=1406999818

http://www.avsforum.com/forum/attach...1&d=1406999818

.........and a Video:

http://vid586.photobucket.com/albums...ps3eef44df.mp4


Give me a PM and we can talk shop without intruding upon Forum Rules and sensibilities.
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stephen77's Avatar stephen77
01:26 AM Liked: 31
post #407 of 607
08-17-2014 | Posts: 75
Joined: Apr 2014
I know its not the greatest pic but I think it shows the black good blacks with bright colors from my diy black screen.

<http://www.avsforum.com/forum/attachment.php?attachmentid=215905&stc=1&d=1408260 005>
Attached: image.jpg (185.6 KB) 
Mil3's Avatar Mil3
05:03 AM Liked: 10
post #408 of 607
08-17-2014 | Posts: 25
Joined: Dec 2013
What did you use for making that black screen stephen?
MississippiMan's Avatar MississippiMan
06:54 AM Liked: 260
post #409 of 607
08-17-2014 | Posts: 15,294
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Please take another picture with the full room lighting on, both with and without an image being projected. There's not much at all one can judge by the photo that you have Posted
stephen77's Avatar stephen77
03:36 PM Liked: 31
post #410 of 607
08-17-2014 | Posts: 75
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I will take more pictures once I have mounted & cleanly put the screen layers together. Is there an easier way to add pictures to the mobile site of the forum? It use to be really easy to add pictures but since they changed a few things up its not as convenient to add pics.
stephen77's Avatar stephen77
07:09 PM Liked: 31
post #411 of 607
08-17-2014 | Posts: 75
Joined: Apr 2014
The picture below is my smoke gray prototype during extreme natural light conditions. It held up fairly well but I believe my final black screen will do better. The final product will consist of 4 layers & 3 of them will help diffuse light which should increase the viewing angle & decrease hotspotting. The first 3 pictures are the smoke gray & the last 2 are the full black screen. I didnt take many black pictures because im still working on it. Please excuse mess along with working on my screen we were having a yard sale.
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Mil3's Avatar Mil3
08:15 AM Liked: 10
post #412 of 607
08-18-2014 | Posts: 25
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Stephen, could you please write which materials did you use for making those screens? Thank you.
stephen77's Avatar stephen77
07:43 PM Liked: 31
post #413 of 607
08-18-2014 | Posts: 75
Joined: Apr 2014
Just received the final piece to the puzzle & once I have time to put it all together I will post more pictures & screen materials. I want to make sure everything works as planned before I post any materials so I dont waste anyones time trying to duplicate something that doesn't work.
HCORE's Avatar HCORE
02:54 PM Liked: 11
post #414 of 607
08-22-2014 | Posts: 22
Joined: Apr 2014
Quote:
Originally Posted by stephen77 View Post
Just received the final piece to the puzzle & once I have time to put it all together I will post more pictures & screen materials. I want to make sure everything works as planned before I post any materials so I dont waste anyones time trying to duplicate something that doesn't work.
stephen77-Very interesting work, looks super!!! create with like-minded mixture of paint to cover the screen ..you tell that in the materials used and on the fibers that make up your Black screen.. thanks !!!
HCORE's Avatar HCORE
03:18 PM Liked: 11
post #415 of 607
08-22-2014 | Posts: 22
Joined: Apr 2014
Here's our modest work..No persistently engaged in creating a good screen for use in the diffuse daylight ...
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HCORE's Avatar HCORE
03:30 PM Liked: 11
post #416 of 607
08-22-2014 | Posts: 22
Joined: Apr 2014
Your opinion ... Distance 3.5 m..Pj-LG PA70G..profil middle ...
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stephen77's Avatar stephen77
08:31 PM Liked: 31
post #417 of 607
08-22-2014 | Posts: 75
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Nice job!! Looks like your getting really good results with your materials. Have you committed to making a full size version yet?
BroodishProdigy's Avatar BroodishProdigy
10:18 PM Liked: 13
post #418 of 607
08-23-2014 | Posts: 50
Joined: Mar 2005
Quote:
Originally Posted by chbue070780 View Post
I've been developing a rear projection glass coating system for the last two years. I know that I can alter my coating formulation for front projection surfaces but my goal was to produce something different on a professional level and after much stress and over 300 formulation variations later I have succeeded. The coating has excellent adhesion to glass and plastic surfaces, is chemical resistant (200 double rub acetone test - passed), excellent mar resistance (Konig (Pendulum) - 189 seconds), and it provides beautiful image quality with a very wide angle of view. The coating does not etch or alter the substrate and is removable though it has an estimated lifespan of 10 years. Now that I have it perfected I'm not completely sure what to do with it. I have people who have seen some of the installations I've done on storefronts who want to buy the coating from me but I've declined. I found this thread interesting so I thought that I would share what I've accomplished because with enough hard work, research, and testing anything can be accomplished.


Charlie
chbue070780, I don't know how much money you have sunk into this project and if you need to monetize it to restore your retirement but as MississippisMan pointed out you did post in a forum that has a distinctly open-source ethos. As such I would encourage you to disclose your methods and materials so that others may benefit. If you have a lot invested in this and need to turn it into a business I understand your position. Either way I would encourage you to do the extra work to convert your formulation to front projection. It would be beneficial either way. Not that I wouldn't love to jackhammer out a basement wall and build a bunker to make rear projection work for me, but it sounds like you have invested, if not a lot of money certainly a lot of time in developing this project. If you don't take the extra steps to develop for front projection you are definitely limiting yourself, no matter what your goals are.
Debonaire's Avatar Debonaire
10:40 PM Liked: 21
post #419 of 607
08-23-2014 | Posts: 218
Joined: Apr 2014
I don't think you understand how much harder a good rear projection is to make. There are more applications than home theater. What we do is a small portion of the whole projectiin businese. I bet lots of store fronts would love a rear projection solution. There are a few cheap pico ultra short throw projectors out there and this would make an excellent alternative to using aflat panel.

Since this is in the final stages of R&D, I see this as an appropriate place to get opinions. He might find someone who lives close and evaluate. Us videophile nerds would be an excellent choice for what will go beyond his normal clients complaints.
MississippiMan's Avatar MississippiMan
02:08 AM Liked: 260
post #420 of 607
08-24-2014 | Posts: 15,294
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Quote:
Originally Posted by Debonaire View Post
I don't think you understand how much harder a good rear projection is to make. There are more applications than home theater. What we do is a small portion of the whole projectiin businese. I bet lots of store fronts would love a rear projection solution. There are a few cheap pico ultra short throw projectors out there and this would make an excellent alternative to using aflat panel.

Since this is in the final stages of R&D, I see this as an appropriate place to get opinions. He might find someone who lives close and evaluate. Us videophile nerds would be an excellent choice for what will go beyond his normal clients complaints.
Your missing the point. The DIY Screen section is not the place to evaluate (promote) what is a decidedly commercial application whose method and materials are not "open source". The Mfg Screens Forum is the proper venue.

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