News by Andrew Kameka on Wednesday November 06, 2013.
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It's been said that the average human eye can barely perceive details beyond 300 pixels per inch (ppi), so mobile device displays that go above that are packing in extra pixels that probably won't be appreciated. It appears that's reason enough for Samsung to make displays with 560 ppi.
Samsung said at its Analyst Day that it plans to ship devices with AMOLED displays that have a resolution of 2560 x 1440 next year. While that resolution may have been great for the Nexus 10, which has a 10-inch screen, it will be less effective on the 5-inch display found in the Galaxy S 4. Though 1080p HD displays have proven more than capable of delivering high-definition displays on smartphones, Samsung has decided to push the envelop and add nearly double what customers will actually be able to see. Samsung plans to take things a step further a make 4K Ultra HD displays with 3840 x 2160 resolutions in 2015. A 4K television sounds great; a 4K smartphone sounds like a feather in a cap that offers no real value.
While more is always better in the eyes of spec hounds, it's important to remember what's already working. The current crop of 1080p HD smartphones almost universally have sharp displays, and most issues with those screens are related to color, saturation, tints, and outdoor visibility, not detail. Instead of optimizing an already exceptional aspect, why not work to improve on the areas that are lacking? Then one has to consider that 1080p HD displays consume more energy than 720p, so bumping up the resolution to 4K will siphon off battery gains. Displays next year will be beautiful, but that pretty AMOLED panel will have a price that may not be worth the tradeoff.source: Android Beat
Andrew is based in Miami, Florida.