I have decided to redo my DIY screen this weekend. I found something that I had not read about yet. If this suggestion has already been discussed, I apologise for the duplicate post.
I tried painting it with the white Pro Classic enamel paint from Sherwin Williams. It was getting very good reviews on this site as well as other sites. It actually looked very good. The problem was that my wallboard had a seams showing. The seams were not as obvious when I was using the flat grey paint for the last few years. The reflective white paint really made it stick out however
I decided to try something else. I took the Sherwin Williams paint chip to the local Hobby Lobby. I found some fabric that I believe works exceptionally well. It is called Roc-Lon drapery fabric. It is used inside of drapes and has a vinyl like texture. The white is very close to the Pro-classic paint.
I built a 9 foot by 5 foot frame out of 2 x 2's. I then stapled the fabric to the frame. I put the staples in the outside edge so they would not show The fabric has some stretch ability, so I was able to pull it quite tight to avoid wrinkles. Since it is a vinyl material, it also does not show threads like many fabrics do. I put the newly built screen on top of the painted area to compare it to the Pro Classic paint. I was very happy with the result. The picture was much brighter than the flat grey I had been using. That made for a brighter image. It was not so bright however that it reflected too much light. In my opinion was comparable to the Pro-classic.
The fabric cost me $12.00 using a 40 % off coupon. Toss in the 2 x 2's and some angle brackets for the corners. The whole screen cost under $20.00 and took only about two hours to put together.