Company DisplayMate, regularly conducting comparative testing screens advanced devices published new results. At this time “in a fight” agreed: iPad Mini Retina, Kindle Fire HDX Nexus 7 and 7 of the second generation. IPad Mini Retina screen got top marks in many categories. DisplayMate noted its high resolution, small color shift when you change the angle, “close to perfect” contrast, precise calibration, low reflectivity. Rated “very good” set for maximum brightness, black level, and the contrast visibility in strong light. But, unfortunately, for all its virtues iPad Mini Retina failed to win in this competition. Competitors were even better.
And finally … in third place, with a large backlog located iPad Minin Retina. Bet on IGZO technology was a bad idea. Now available technologies that provide better results than IGZO. This is in particular the low-temperature polymorphous silicon (Low Temperature Poly Silicon – LTPS), which is used in all the iPhone and all in all OLED-screen production Samsung. Amazon and Google are far ahead of Apple, equipping their flagship tablets LTPS-screens. They are much better than IGZO and a-Si screens installed in the new iPad Mini. Apple lags behind in the area where once was the leader.
DisplayMate calls the two main problems faced when using Apple technology IGZO (Indium Gallium Zinc Oxide). First, this technology was the best two years ago, but since then progress significantly stepped forward. Secondly, Apple failed to establish production IGZO-displays in the right quantity. As a result, the new plates are installed as IGZO, and the less effective a-Si displays. Screens made using amorphous silicon (a-Si) is much less energy efficient and therefore require high-capacity battery, so how Apple was able to use both types of displays in the same product?
We[DisplayMate] data, in the manufacture of a-Si panels are used more productive (and expensive) LED backlight. This equalizes the energy efficiency displays and allows to achieve comparable performance to the consumer.
most criticism has caused poor colors iPad Mini Retina (the range of colors that can be displayed) – 63% versus 97% for Kindle and 103% for the Nexus. And also a very big mistakes colors. The site authors of the study can be found detailed tables and graphs, and we present only those items which obtained different results.
The best display
experts believe DisplayMate screen Kindle Fire HDX 7. In the production technology is used so-called “quantum dots” Quantum Dots.
EarlierQuantum Dots – it’s almost magic. They use quantum effects to make the main color on the LCD-displays as saturated as on the OLED. They will not only increase the color gamut mapped on 40-50 percent, but the 15-20 percent increase feed efficiency. White LEDs (yellow phosphors) produce a wide range of light, from which then difficult to get rich colors. Quantum Dots instead use light blue LEDs, converting it into a very saturated primary colors. Quantum Dots technology will revolutionize the displays in the next 5 years.
comparing displays iPad Air, Amazon Kindle Fire HDX and Google Nexus 10, DisplayMate already noted superiority over LTPS technologies used Apple, but in that case the difference in results was not so significant. Maybe, of course, in the opinion of a mere consumer disadvantages iPad Mini Retina screen will not be as significant. After all, to use directly out Testbed tablet leaves very positive impressions. But a fly in the ointment tests still added.
[displaymate, 9to5mac]
Tags: Google Nexus 7, iPad mini Retina, Kindle Fire, displays, test
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