Low Retina iPad Mini manufacturing Reportedly because of Burn-In problem on Sharp’s show Panels

ultimate week, a file from eastern trade newspaper Nikkei make clear the manufacturing considerations surrounding the impending Retina iPad mini, pointing out that Apple is now turning to rival Samsung as suppliers Sharp and LG display have failed to provide an plentiful supply of displays for the new pill. Now, a document from Korean web site ETNews (via Unwired View) has elaborated on the matter, with Sharp’s IGZO panels for the Retina iPad mini mentioned to be suffering from monitor burn-in issues.

whereas the burn-in problem is reportedly invisible to users, the panels do not meet Apple’s specs and accordingly the high rejection price has resulted in low panel yields for the tablet. As mentioned in a record previous this week examining the new iPad Air’s use of IGZO technology, Sharp has experienced difficulties ramping up manufacturing of its IGZO panels up to now, with it taking until now for Apple to carry the technology to its products.

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The burn-in drawback was due to the drastic discount of the pixel dimension. The resolution of the 7.9-inch iPad mini with Retina show is 2048×1536, about 4 occasions clearer than the prevailing 1024×768 merchandise. LG show used the amorphous silicon (a-Si) for the substrate, whereas Sharp used IGZO. The pixel of the smartphone show is smaller than that of the iPad mini Retina panel, but because the Low Temperature Polycrystalline Silicon (LTPS) expertise is used, it may be produced stably. The pixel of the iPad mini Retina is the smallest among those merchandise the use of a-Si. Sharp failed to solve the continual problem of IGZO, i.e. uniformity, and its yield went down.

The document also elaborates on how Apple is also negotiating with Samsung to provide displays for the instrument starting subsequent yr, turning back to its rival partially due to Samsung’s experience solving a identical downside with 1/3-technology iPad’s transfer to a Retina show.

Apple is negotiating with Samsung display for the supply of shows starting next yr. Apple discussed cooperation with Samsung display when it was planning on the iPad mini Retina. AUO, which was the iPad mini show supplier, was excluded from the retina version as a result of its yield drawback. Apple was planning to receive 15 million panels from LG display, Sharp and Samsung show at the finish of this yr. however, as the negotiation with Samsung show fell thru, simplest LG show and Sharp made it to the final record of primary suppliers.

If the issue of display burn-in persists, the document additionally states that Apple may move to LTPS technology corresponding to that considered within the Kindle fire HDX, as it is less vulnerable to the issue. however, while LTPS is frequently used on displays for smaller units such because the iPhone, Apple is not going to mass produce the displays for greater displays in part because of scalability issues that simply won’t enhance the tens of tens of millions of drugs that the corporate is producing each and every year.

Apple CEO Tim cook said ultimate week all over the corporate’s fourth quarter cash call that it was once “uncertain whether we will have sufficient for the quarter or now not,” as the corporate has most effective promised that the tablet will arrive by using the the end of November. As mentioned by Apple all through the introduction of the 2d-technology iPad mini, a Retina show has been probably the most requested features for the smaller iPad on the grounds that its release final yr.

replace: MacRumors spoke with Ray Soneira of DisplayMate technologies, who referred to that LG is nearly by no means the usage of a-Si for its Retina iPad mini display panels as a result of important power issues with looking to power a show of that pixel density the use of the technology. the corporate has also been shipping its personal IGZO show panels for a while now, and Soneira mentioned that “it will be very inefficient to engineer the iPad mini to ship using two considerably different show technologies.”

Soneira also clarified that “burn-in” is the mistaken time period for what can be taking place with these LCDs. it will be a brief-time period picture retention difficulty perhaps similar to what some early Retina MacBook pro customers experienced, even if it appears in this case that the impact is invisible to users.

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