Lots of recent projectors have been getting high contrast ratios by using a dynamic iris. That means the iris changes size depending on what is displaying on the screen, putting out more or less light. This gives the projector a wider contrast ratio, meaning the difference between the darkest dark and the brightest white is greater. This improves the quality of the video in a way that is clearly visible.

Now JVC has created a projector with a 10,000:1 contrast ratio without an iris.

By revising lens and other optical designs, the company realized the high full on/off contrast ratio. JVC prepared a dark room assumed as a home theater room and emphasized its development’s higher picture quality and, in particular, improved “black reproduction” aimed at preventing black from showing gray, in comparison with the company’s current product inside the room.

JVC used 3 D-ILA chips at 1080p resolution in their prototype projector. But I’ve been thinking. If they can pull off a 10,000:1 contrast ratio without a dynamic iris, just imagine what they can do if they do use one?

JVC Demonstrates Projector Achieving 10,000:1 Contrast Ratio without Using Aperture