I had a thought, what is the bottle neck in today's digital projectors image quality.
Is it really resolution? I don't think so. 1080P resolution is sufficient unless you take the screen size to viewing distance ratio to extreme levels.
The real bottle neck, is still contrast. Static contrast and to be more specific, ansi contrast.
Flat panel displays have reached ansi contrast numbers that are equivalent to static on off contrast ratio of projectors.
How did the LCD flat panel technology, overcome the contrast limits of the LCD panel? They added local dimming light source that acts as a second light modulator.
We know of double light modulation projectors that reach huge contrast ratios but suffer from low light efficiency, not to mention the price.
If we take the double light modulation concept, but use a led matrix light source as the first light modulator we can greatly improve the light efficiency.
Apparently, I'm not the only one thinking in this direction; I found a patent by Dolby for local dimming of a laser light source for projectors:
So, what do you think, is this a technology that will affect HT projectors?
Or will it remain an option for planetarium projectors, like the current double modulation projectors