Apple says iPad mini's jelly scrolling is not a problem, calls it normal behaviour
India Today
Apple released the iPad mini last week and several users began reporting the jelly scroll issue on its display.
Apple’s new iPad mini, which packs better specifications and the latest software, went for sale last week. People who bought the iPad mini enthusiastically started using Apple’s new tablet, only to spot an issue that probably ruined their experience. In portrait mode, the tablet has a jelly scrolling problem, making the right half of the display appear slightly behind the left one when you are scrolling through a webpage or a document. Apple has taken note of this and said that this is not an issue but "normal behaviour".
In a statement to Ars Technica, Apple said the “jelly scroll” problem on the screen on the iPad mini is normal behaviour for LCDs. It added that the LCDs refresh line by line, so there is a small delay between when the lines on one half and the lines on the other half are refreshed. This is particularly visible when the iPad mini is held in portrait mode, making text on a webpage or a document look wobbly to an attentive eye.