![]() ![]() We also set the software to measure the levels properly based on the screen type measurements can be slightly different depending on whether an LCD or an OLED is being metered, so we make sure the right mode is set.īesides connecting to the K-80, the CalMAN 5 software connects to another piece of software on the phones themselves: SpectraCal's MobileForge app. We use the software to produce the color wheels included in our reviews. CalMAN 5 translates the luminance information into a phone's peak brightness in cd/m 2 (nits), and the chromaticity information into X and Y levels for positioning on a color chart. This software analyzes the data the colorimeter measures and turns it into usable numbers and charts. The K-80 connects to a Razer Blade Pro laptop with SpectraCal's CalMAN 5 software (Opens in a new window). The K10-A, while fast and accurate, is a bit too big to measure small screens accurately. Its frontmost lens is half the diameter of the K10-A's, which makes it small enough to place against the screen of any smartphone or tablet. ![]() It's similar to the Klein K10-A colorimeter (Opens in a new window) we use for testing TVs with one important difference: aperture size. ![]() Our screen testing is built around the Klein K-80 colorimeter (Opens in a new window), a device that precisely measures light and color. Here is the full process, and a look at how current flagship phone screens stack up based on our results. It involves using a colorimeter, image measurement and test pattern software, and analysis based on Imaging Science Foundation calibration techniques. We have developed a new screen evaluation process, based on the tests we perform on monitors and TVs. While we've closely eyeballed all the LCD, AMOLED, Super AMOLED, Retina, and other screens to cross our desks in the past, we are now incorporating full color and brightness measurements in our phone reviews. We're always looking to improve how we evaluate different products, and for 2019 we're adding a whole new category of tests to our phone reviews: Screen performance.
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