![]() Almost half of the WEB-based (sRGB) colors are missing. ThinkPad E550’s display covers 56% of the sRGB and 42% of the Adobe RGB color gamut. Just make sure you don’t set the brightness level under 50%. ![]() These levels of brightness are so low that you will probably end not using them, so after 41% screen brightness the PWM (pulse-width modulation) is absent, thus harmless to human vision. The measured color temperature is 6800K – a bit cold, but still close to the optimal 6500K.Īs you can see from the image below, PWM is present from 0% brightness (5 cd/m2) to 41% (67 cd/m2). This means that the screen will provide good viewing experience even in a bright room. We’ve measured the maximum brightness of the panel before calibration – 262 cd/m2 and the recorded deviation is around 15%. Here you can see the visibility of the screen at 45° angle and as we expected, viewing angles aren’t as good due to the TN panel. You can see the alignment of the pixels under microscope on white background. ![]() The resolution is 1366×768 pixels (WXGA) and each pixel is at 0.253 x 0.253 mm away from the next one or in other words – 100 PPI (pixels per inch). The manufacturer is AU Optronics with model number B156XTN04.1. Lenovo ThinkPad E550’s display measures at 15.6-inch diagonal and it’s equipped with LCD TN panel with WLED backlight.
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