Hitachi announced a new mobile IPS LCD display that also does glasses-free 3D. It’s quite a beast at 4.5″ and 720p resolution (1280 x 720 pixels) and it uses lenticular technology to create the stereoscopic effect, which allows it to be brighter when displaying 3D images.
Hitachi say that typical glasses-free 3D displays (that use a parallax barrier) have their brightness cut in half when showing 3D content. Not so with their new display – it’s actually brighter in 3D mode.
The display uses IPS technology, which means we can expect good viewing anglesy from it. It’s rated at 400 nits in 2D mode and the number jumps to 470 nits in 3D mode. Those are very good numbers, especially considering one of the major banes of 3D right now is just how dim it is (there was a lot of talk of how cinemas display very dim 3D movies, Michael Bay even wrote a letter to projectionists).
One more thing – a quick calculation shows that 720p resolution at 4.5″ means exactly 326 ppi, the exact number of the iPhone 4′s Retina display pixel density. I’m sure it’s not a coincidence but it’s strange that Hitachi didn’t brag about it.
Source (in Japanese)