With the iPad mini already seeming to be a great success, Apple must surely be already planning the next iPad mini, and must be aware that many are saying that the only thing the tiny wonder lacks is a Retina display, or high-resolution equivalent. Now, according to a report in DigiTimes, as noted by AppleInsider, sources in the backlighting industry are saying that the next iPad mini will indeed have a higher resolution display, most likely an HiDPI display. As AppleInsider notes, if these rumours are accurate, then the next iPad mini will have a display resolution of 2,048 x 1,536 pixels, which would actually have a higher density than that of the full-size iPad, with its ppi of 264, because of the difference in the screen sizes of the two devices. The same sources also said that the fourth-gen, full-sized iPad will move from having dual light bars in its LED backlighting system, to just one light bar, for the purposes of making the iPad even slimmer and lighter than it is currently.
Source: Rumor: Next-gen iPad mini to boast high-resolution display