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Into The screen represents the first commercial weapon of a smartphone, a tablet or a TV. The sharpness of the image is a parameter that even the less accustomed to technology to assess and is among the first, along with ergonomics, which is considered in the purchase. And it is for this reason that the producers for their top range choose only the best: Full HD display and large between 4.5 and 5 inches. This year we have already seen some, dall’Xperia Sony Z to One by HTC, which will arrive in Italy on May 10.
Into Abstract: above 300 pixels per inch our naked eye can not tell the difference. Why Steve Jobs , founder of Apple with Steve Wozniak, he never pushed to pass the 326-329 dpi of ‘ iPhone 4 and ‘ iPhone 5, density made possible by the Retina, and why the guys GadgetGuy needed a microscope to perform a comparison test between the various displays. The sm artphones are taken into consideration: iPhone 5, Optimus G, Xperia Z, Galaxy S4, One, Galaxy Note 2 and Ascend Mate. Into What emerges is that a true winner is not distinguished . iPhone 5 and Optimus G remain a little ‘back, with screens, respectively, at 326 dpi and 318 dpi; Xperia Z, Galaxy S4 and One have the highest density, but the different technology that is used for each of them (TFT , Super AMOLED and Super LCD 3) makes the pixels different in-house but not the quality of the image that in all three cases is maintained at a high level.Into 
Into Finally, Galaxy Note 2 and Ascend Mate. Due to the diagonal, 5.5-inch and 6.1-inch, the density is lower (305 versus 240), but is bypassed by a wide screen and then allows the user to read the text without problems or need to zoom, the Galaxy Note 2, however, has rounder letters and more readable under a microscope.
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