DIY black screen tests - Page 14 - AVS Forum
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post #391 of 413 Old 05-28-2014, 11:38 AM
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spandexworld.com
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post #392 of 413 Old 05-28-2014, 11:43 AM
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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.
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post #393 of 413 Old 05-28-2014, 01:04 PM
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The spandex was to thin so I doubled it up over the mylar & took this pic..
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post #394 of 413 Old 05-28-2014, 01:05 PM
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.right next a wall of windows that really sucks for a home theater...
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post #395 of 413 Old 05-28-2014, 01:10 PM
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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.
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post #396 of 413 Old 05-29-2014, 02:59 PM
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If you dont have an issue with glossyness just skip the additional layer. What about moiree. Do you see any?
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post #397 of 413 Old 06-11-2014, 03:06 AM
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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

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post #398 of 413 Old 06-11-2014, 03:20 AM
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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

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post #399 of 413 Old 06-14-2014, 11:01 PM
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Raymond, fly me in to Amsterdam and I will take care of everything for you. Thanks.
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post #400 of 413 Old 06-14-2014, 11:47 PM
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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
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post #401 of 413 Old 06-15-2014, 12:04 AM
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From Nebraska. Please. I love your country.
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post #402 of 413 Old 06-28-2014, 05:51 PM
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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?
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post #403 of 413 Old 07-10-2014, 12:17 AM
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My Grafit mix Black screen
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post #404 of 413 Old 07-10-2014, 04:56 AM
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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.

To quote James T. Kirk;
"I'm laughing at the superior intellect"
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post #405 of 413 Old 08-01-2014, 12:09 PM
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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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Last edited by chbue070780; 08-01-2014 at 12:27 PM.
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post #406 of 413 Old 08-02-2014, 10:46 AM
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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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File Type: jpg A just before Dusk Aquarium.jpg (430.4 KB, 48 views)
File Type: jpg A Night Time Aquarium close up.jpg (573.8 KB, 37 views)
File Type: jpg A Night Time Aquarium w-Kid.jpg (660.1 KB, 32 views)
File Type: jpg A Twilight Aquarium w-People.jpg (567.3 KB, 39 views)
File Type: jpg Nemo 1.jpg (586.2 KB, 37 views)
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To quote James T. Kirk;
"I'm laughing at the superior intellect"
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post #407 of 413 Old 08-17-2014, 12:26 AM
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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>
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post #408 of 413 Old 08-17-2014, 04:03 AM
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What did you use for making that black screen stephen?
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post #409 of 413 Old 08-17-2014, 05:54 AM
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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

To quote James T. Kirk;
"I'm laughing at the superior intellect"
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post #410 of 413 Old 08-17-2014, 02:36 PM
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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.
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post #411 of 413 Old 08-17-2014, 06:09 PM
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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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post #412 of 413 Old 08-18-2014, 07:15 AM
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Stephen, could you please write which materials did you use for making those screens? Thank you.
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post #413 of 413 Old 08-18-2014, 06:43 PM
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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.
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