IMac until after its debut, it has always been considered a computer intended for those who wanted high performance in a small space. Appreciated by creative home user, iMac has changed over the years and has achieved a design that, even today, appears to be at the forefront. Compared to previous generations, iMac with Retina display 5K is a computer that adopts a screen "Retina" bringing, for the first time, in an all-in-one, the Resolution 5K.
Apple has long worked in achieving a display 5K, in which has been redesigned from the ground throughout the management system of the screen and, at the same time, also as regards the assembly of the components have been chosen tolerance margins of a hundredth of microns. Why was it necessary to re-create "scratch" the screen management system, i.e. the brain that controls every pixel? With more than 14.7 million pixels, arranged in a 27-inch panel, is not yet available on the market a well developed and complex.
Not only the brain, but Apple had to redesign every single component of the screen. The panel, in fact, contains inside the 23 levels of only 1.4 mm thick. In rethinking the display, the engineers wanted to improve the quality of the blacks and colors, creating a second screen that first impressions leave you slack-jawed.
Timing Controller
Manage 14.7 million pixels requires a "brain of the screen" extremely powerful and fast, alias timing controller, saying to each pixel what to do and when. Since 5K iMac with Retina display has four times the number of pixels than the previous generation, the timing controller must handle much more information. Since the market are not suitable available timing controller, Apple had to create a new one with a bandwidth equal to 40Gbps and pilot optimally 14.7 million pixels.
Oxide-TFT
to maintain a constant brightness of the screen, Apple has also redesigned to produce ad-hoc oxide-TFT panel, which allows you to transmit the charge to each pixel, a more precise and longer. In a display so large, in fact, is necessary to maintain a constant brightness and uniform in all the corners of the screen.
High Efficiency LED
The Retina display iMac 5K is a masterpiece of engineering for food because a screen so determined it was necessary to adopt high-efficiency LEDs, which reduce fuel consumption and maintain the same level of brightness as always.
Organic Passivation
The organic passivation is a tencologia that has been introduced, for the first time, in the iPad with Retina display and allows to separate the pixels from the signals that activate them, so as to avoid potential interference. In this way, the image quality remains excellent and do not occur energy dispersions, during the transmission of signals.
Combining oxide-TFT, high efficiency LEDs and organic passivation, Apple has managed to create a 5K Retina display that consumes 30% less energy than traditional screens mounted iMac. A huge step forward from an engineering point of view.
Fotoallineamento
Also with regard to the contrast, Apple has adopted the fotoallineamento, a technique that uses UV light to uniform the film that covers the TFT and the color filter. This system allows the positioning of the liquid crystal molecules with extreme precision and, therefore, be in front of a screen with contrast markedly improved.
Compensation Layer
The pixel density, so extreme, it may involve the risk of seeing the off-axis angles, although it is looking at the center of the screen. The compensation layer allows you to control the way in which the light exits the screen and makes colors more realistic and blacks, from every angle.
Calibrated Color
Apple, before you enter every single iMac with Retina display 5K on the market, bring the screen to a thorough process of color calibration using spectroradiometers, a technology that ensures precision and color accuracy.
First Impressions
First impressions of those who have been able to see the new iMac with Retina display 5K closely seem to confirm the expectations. The color fidelity of the images is outstanding and also the viewing angles satisfy all your needs. The images, in fact, appear extremely realistic. Recall, finally, that iMac with Retina display 5K is sold starting from € 2629.
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