[sldev] Alternative to Nvidia 3D Goggles?

[Aimee Walton]

On 20 Sep 2008, at 04:22, Sheet Spotter wrote:

>
> PureDepth Inc. has patented a simple, yet exciting approach to 3D, by
> creating Multi-Layer Displays. It is essentially two LCD flat panels  
> mounted
> on top of each other.

Hmm, with only two layers that's going to be pretty limited, just a  
HUD layer and the world view with some depth separation. Even with  
more layers you're still stuck with a small set of discreet planes  
with a fixed offset from each other, a bit like flat stage scenery. It  
also won't be able to occlude properly, you can't have something light  
coloured in front of something dark.

Unless someone takes a massive leap forward in LCD optical  
transmission efficiency it's going to need some sort of insane nuclear  
powered backlighting assembly, as LCDs already have horrible optical  
efficiency, typically around 5%. (I used to work in the design of LCD  
backlighting systems :)

It will probably find some use in arcade machines with a clearly  
defined foreground and background scene. Or it could make for some  
interesting user interfaces by popping stuff that needs attention  
forward out of the background, for safety or time critical stuff in  
industrial / medical applications.

Aimee.