Projection Screens

What you thought you knew about screen technology may change.

We’ve written articles detailing the history of our involvement in the development of screen materials for video projection. We’ve discussed how what JKP was requesting of screen manufacturers ran contrary to the conventional wisdom and practices of the time. We wanted low-gain screens when projector manufacturers were demanding higher-gain screens. We wanted a neutral color, where all colors of light would be reflected equally, when conventional screens were noticeably blue and or blue-green.

Once we got involved with lamp-based projectors, we needed options in shades-of-gray screens. Those properties assisted us in obtaining better black levels from smaller images. We eventually reached a point in projector detail capability where there was an interference pattern with the grain structure of the surface of the screen and the pixel structure of the projector. This called for yet another look at the way screens were being made.

All of this was being done while some consumers were still asking, “What do you mean we can’t just project the image on the wall?” Selecting the right screen is a critical part of what you see in your home projection system. As projection capability gets better, the screen becomes a more important part of the quality of image being presented.

Old Habits…

We feel some of the trends currently being promoted in screen technology go against consumers’ best interests. Curved screens head our list. From the point-of-view of a high-quality image, curved screens should have died a permanent death with the passing of Kloss Nova-beam projectors. But, somehow, what’s old is new again, as we forget why we abandoned the idea in the first place. The new reason for needing curved screens is just as old as when they first appeared. It is a fix for something wrong in the projection path.

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  • http://Tryg Tryg

    First JK got the necessity for a curved screen has long since passed. He got that right. But then he goes on a 9 page diatribe about things we already knew as he walked us back in time and continued to talk about outdated technology. What he failed to do is describe what he said he would do "we’ve found that we’ve had to find a new way to describe the parameters of the screen". We’re still waiting Joe. Nice advertisement. I’ve sold more Da-Lite High Powers than he will ever sell on his "signature product" by mearly describing it’s benefits. No sales pitch here. I dont work in the industry.