Now, the original report from DigiTimes was not completely off the mark. ETN states that Sharp was in the running to be the display supplier, but failed Apple’s approval process for mass production.
Rumors have surfaced claiming the iPad 3 will have a resolution 4 times higher than the iPad 2 and will enter Retina territory by breaking the 300 ppi boundary. If there is any truth to that rumor, chances are we won't be seeing it happen on an IGZO display. Ultimately, as with all Apple rumors – only time will tell.
source: ETN via Patently Apple