Hitachi is now mass producing a 2.9-inch LCD panel with a resolution of 800 x 480 pixels for mobile phones. You would expect the power consumption of such a display to make a mockery of battery life but Hitachi claims that its IPS LCD technology improves the transmission of light by revamping the pixel structure and microfabricating the wiring. There are no hard numbers on power consumption (and how it compares to QVGA panels) but it does offers a a viewing angle of over 170 degrees in both vertical and horizontal directions, a contrast ratio of about 400:1 and luminance of 250 cd/m2.
So far, no device manufacturers have announced devices using the new panel.
Source: Engadget