Update: Projection Screens
JKP has always had the goal of specifying screen materials that will be neutral in reflecting the capabilities of the projector. We've been careful in limiting what we ask of a screen in compensating for performance issues in other parts of the system. Gray screens are an example of where we are asking the screen to compensate for a problem in lamp-based projectors Done correctly, gray screens can be a good thing.
Time for Change
With the help of the Da-Lite Screen Company, we've demonstrated a new screen material that solves the important issues left open, prior to our involvement with a true 1080p resolution. The new material has allowed us to show an image quality so good that everyone seeing it was certain we were using a new projector. What demonstration participants saw was better contrast, more detail and far better uniformity over the entire image area. All three of these improvements, each being large, have surprised most home theater installers. I'm not sure any of us, including me, were prepared for what fixing the remaining problems with screens was going to do to the picture quality. It didn't seem possible the screen could make such a large difference.
What we were able to determine was that in all of our prior demonstrations of the projector, we had never had a screen that would allow us to show the audience what the projector was doing. After seeing the projector on the new Da-Lite screen we sent a note back to the projector manufacturer telling them the lens was much better than we had originally thought. It was clearly capable of delivering a detail level we had never seen before.
In trying to describe how and or why the screen properties have made such a difference we've found that we've had to find a new way to describe the parameters of the screen. In telling audience members why it is better, we started by using conventional terminology to describe screens. It was immediately apparent even that had to change, as it no longer applied.