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Projection on white wall is better than spandex screen?

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#1
Hey everyone, I recently purchased XGIMI H1 projector after doing a lot of research. I've been using it for more than a month by projecting on a white wall and it looked awesome! Crisp 1080 projector!
I thought it would look even better on a fixed frame screen! So I hired a carpenter, got a 100-inch diagonal frame done, bought 4-way stretchable white spandex material, stretched and fixed it to the frame. It looked like this!


IMG_20180816_231409 (2).jpg

The frame looked amazing but the projected image on the screen is not as good as the wall. It looked a bit washed out and it is not crisp anymore. It looks like a 720p projector now! It has some kind of dreamy glow effect now. I think the white color light is being spread out on the screen. Colors are not as clear on the wall.

Also, The screen looks a bit transparent and light is being projected onto wall behind the screen a bit.

I'm planning to use a coat of white paint or grey paint on the spandex screen? Will it help me fix it?

Has anyone experienced this issue with white screens? Please help me fix this.

Here's a comparison between wall and screen.

IMG_20180817_120648 (1).jpg


The difference is not clearly visible in the captured photos but there's a clear difference in real.

Few more photos of my screen -

IMG_20180816_234414 (1).jpg

IMG_20180816_233311 (1).jpg
 
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#2
Also, The screen looks a bit transparent and light is being projected onto wall behind the screen a bit.

I'm planning to use a coat of white paint or grey paint on the spandex screen? Will it help me fix it?
There's your answer, reflected light from behind your screen is messing it up for you. Spandex is needed only for a acoustically transparent screen. You don't seem to have any speakers behind it. So what was the need? If you must use spandex use a (white) blackout cloth immediately behind it, else move the screen a bit forward and paint the rear black. In the second method you will loose some brightness but the screen will still be AT (if that's needed).
 
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#3
There's your answer, reflected light from behind your screen is messing it up for you. Spandex is needed only for a acoustically transparent screen. You don't seem to have any speakers behind it. So what was the need? If you must use spandex use a (white) blackout cloth immediately behind it, else move the screen a bit forward and paint the rear black. In the second method you will loose some brightness but the screen will still be AT (if that's needed).
Hi Naveen, I did not know any other material for the projector screen. Can you tell me what material is used normally?
Also, Do you think that painting the screen with a coat of white paint would fix it?
 

ItsMe

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#5
Hi Naveen, I did not know any other material for the projector screen. Can you tell me what material is used normally?
Also, Do you think that painting the screen with a coat of white paint would fix it?
No, as mentioned earlier, you could use a blackout cloth as a second layer behind your Spandex to enhance the experience. You should be able to procure it from curtain shops
 

elangoas

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#6
Also, The screen looks a bit transparent and light is being projected onto wall behind the screen a bit.
Believe you must have stretched the spandex too much.. When i was doing the AT screen for the first time, i used a single layer white spandex and stretch it too much, so there was a light loss seeping thru the screen.. I was suggested by members to use double layer spandex.. (white spandex stretched over black spandex).. When i did it for the second time, i gently stretched the spandex.. Now, i don't have the light seeping thru the screen..

I use the same projector.. Here is a pic of my 100 inch screen..





 

indy70

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#7
Did you play with your projector settings ? You can change image brightness contrast and also temperature. Adjust the temperature till whites look whites (no yellow or blue tint, called as white balancing). Wouldn't recommend painting the spandex it may or may not hold and it may become soggy and droopy.
 
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#8
Thanks guys, I'm planning to use a blackout cloth as a second layer behind the current spandex layer or use a different screen instead of spandex. I'll let you know the results.
 

mukulmehra

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#9
Hey everyone, I recently purchased XGIMI H1 projector after doing a lot of research. I've been using it for more than a month by projecting on a white wall and it looked awesome! Crisp 1080 projector!
I thought it would look even better on a fixed frame screen! So I hired a carpenter, got a 100-inch diagonal frame done, bought 4-way stretchable white spandex material, stretched and fixed it to the frame. It looked like this!


View attachment 29548

The frame looked amazing but the projected image on the screen is not as good as the wall. It looked a bit washed out and it is not crisp anymore. It looks like a 720p projector now! It has some kind of dreamy glow effect now. I think the white color light is being spread out on the screen. Colors are not as clear on the wall.

Also, The screen looks a bit transparent and light is being projected onto wall behind the screen a bit.

I'm planning to use a coat of white paint or grey paint on the spandex screen? Will it help me fix it?

Has anyone experienced this issue with white screens? Please help me fix this.

Here's a comparison between wall and screen.

View attachment 29550


The difference is not clearly visible in the captured photos but there's a clear difference in real.

Few more photos of my screen -

View attachment 29552

View attachment 29551
Did you purchase your projector from AliExpress or Amazon India?
 

manoj.p

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#10
Blackout cloth is also white in color. The light will still reflect off it, giving you that glow.

Put a non reflective, non transparent Matt black cloth behind the screen. That should get rid of this issues.
 
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#13
Believe you must have stretched the spandex too much.. When i was doing the AT screen for the first time, i used a single layer white spandex and stretch it too much, so there was a light loss seeping thru the screen.. I was suggested by members to use double layer spandex.. (white spandex stretched over black spandex).. When i did it for the second time, i gently stretched the spandex.. Now, i don't have the light seeping thru the screen..

I use the same projector.. Here is a pic of my 100 inch screen..





How much did you spend in total and please guide me to do the same. Which projector you use sir ?
 
Joined
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#14
Believe you must have stretched the spandex too much.. When i was doing the AT screen for the first time, i used a single layer white spandex and stretch it too much, so there was a light loss seeping thru the screen.. I was suggested by members to use double layer spandex.. (white spandex stretched over black spandex).. When i did it for the second time, i gently stretched the spandex.. Now, i don't have the light seeping thru the screen..

I use the same projector.. Here is a pic of my 100 inch screen..





Hello sir, I'm planning to get an xigmi H1 after going thru your reviews baised on that product. The only thing is I need to make a 100 inch 16:9 ratio screen.like yours kindly help and guide me where to buy the materials from . My contact no 9840060332. And I'm a business development manager at a hifi audio company. In Chennai. Thanks in advance.
 
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