Pixel density

Concept image: Nikola Cirkovic

I wrote in an earlier opinion piece that 2014 is the year when I expect Apple to finally give in and opt for a larger iPhone display. Assuming I’m right, the question then becomes: what approach will Apple take?

There are two ways of increasing the size of a display. First, you can keep the resolution the same and simply use larger pixels. That’s what happens when a manufacturer makes a 1080P HD TV in both 40- and 50-inch sizes, for example. Both have 1920×1080 pixel displays, it’s just that the 50-inch display has larger pixels.

That would be by far the simplest approach for Apple to take. Provided it keeps the aspect ratio the same as the iPhone 5/c/s, then it can continue to use an 1136×640 display. All existing apps continue to work as-is, developers don’t have to do any work to support the larger display and everyone is happy . Or are they… 
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Update: Pricing has just been announced, at $3,799. Pricey, but actually not bad value in a market that had five-figure pricing not so long ago.

ASUS today revealed that it will launch a 31.5-inch 4k monitor late next month, its 3840×2160 pixels allowing four 1080p HD videos to display full-size on the same screen without overlap. A 4k monitor in such a small package is made possible by using an IGZO panel, whose smaller transistors enable greater pixel density, and is likely to be in the same league (and possibly from the same manufacturer) as the 32-inch Sharp panel we saw at CES.

However, don’t rush out to buy one just yet: it’s unlikely that even a top-spec Mac from today’s line-up would be able to drive the resolution at a decent frame-rate. But the next-generation of Haswell-powered Macs almost certainly will. Indeed, as we mentioned earlier, it’s even possible that a next-generation MacBook Air could do so …
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[youtube=http://www.youtube.com/watch?v=fctZx8_Naa8]

We had the opportunity to spend a lot of time with Sharp today at its IGZO display booth. While they would not say which Apple products would incorporate their new displays, they did seem to insinuate these were the best displays on the market, and Apple is the type of company that uses the best displays.

So why are these the best?

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CNET’s Brooke Crothers has heard some information about the iPad 3’s upcoming 264PPI display. As we’ve heard a lot in the past, it will be a 2048×1536 resolution display as long as the Korean display manufacturers, Samsung and LG, can produce them in large numbers. According to his source, there could be some problems building it in the monstrous quantities that Apple demands.

The closest that iPad display manufacturers like LG Display and Samsung can get is 2048×1536 resolution display, according to the source. That’s a PPI of 264, twice the 132 PPI on the iPad 2.

But whether manufacturers can make them in volumes that Apple demands is the question. “They have production plans for 2,048×1,536 displays. Starting in November. But those are only plans at this point,” said the source, referring to LG and Samsung.

“It’s not a question of making just one. That, of course, can be done. The challenge is making lots of them,” the source said. “This is a quantum leap in pixel density. This hasn’t been done before.”

If manufacturers are not able to hit the volumes necessary for the higher resolution, there is an interim option of 1,600×1,200, according to the source.

The display is also expected to have a brightness of 550 nits. That’s pretty bright, as the typical laptop display panel tops out at about 350 nits.

I don’t think it is as easy as dropping the resolution down to 1600×1200. Apps don’t scale that easily even if the aspect ratio is the same. If for some reason, they can’t pump out the 2048×1536 in sufficient numbers (and Samsung is already testing better ones), Apple will continue with the same resolution….or wait until they can produce enough high resolution displays.

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