ΔE is the industry standard color difference metric proposed by the International Commission on Illumination (CIE) that best describes uniform differences between colors. Another individual reading is taken at our reference 200 cd/m² which is a good white level for typical office conditions and indoor lighting.We primarily use the color difference measurement CIEDE2000 (shortened to ΔE) as a metric for chromatic accuracy. The color targets are spaced roughly even throughout the CIE 1976 chromaticity scale, which makes them excellent targets to assess the complete color reproduction capabilities of a display.The grayscale and color accuracy readings are taken in increments of 20% over the display’s perceptual (non-linear) brightness range and averaged to achieve a single reading that is accurate to the overall appearance of the display.
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This gamma value is more meaningful and true-to-experience than those that report the gamma reading from display calibration software like CalMAN, which averages the theoretical gamma of each step instead.The colors that we target for our test patterns are inspired by DisplayMate’s absolute color accuracy plots. From the readings, we also derive the display gamma using a least-squares fit on the theoretical gamma values of each step.
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Many other sites’ display analyses do not properly account for them and consequently, their data may be inaccurate.We first measure the display’s full grayscale and report the perceptual color error of white along with its correlated color temperature. The test patterns and device settings we use are corrected for various display characteristics and potential software implementations that can alter our desired measurements. To obtain quantitative color data from the display, we stage device-specific input test patterns to the handset and measure the display’s resulting emission using an i1Pro 2 spectrophotometer. Until Google does so, its displays will always seem lackluster since there are literally dozens of us that actually go outside, where the Pixel phone displays simply appear unpleasantly dim when compared to the competition. If Google implemented its panel’s high brightness mode I would give the Pixel 3 XL display an "A" rating, but Google has to go even further since the competition is boasting 600+ nits display brightnesses. Just like Apple, Google decided to use a flexible substrate on a flat screen - which I highly prefer - to achieve the plastered-screen look (hence “Flexible OLED” even though the screen appears flat). The silhouette on the front of the device is extremely sleek with a nice flat dark slab that hides the bathtub notch and chin well when the display is off (a result of the high-quality anti-reflection absorption layers), and a display that looks just as well-laminated as the iPhone X-series.
Indoors, the Google Pixel 3 XL display is absolutely stellar with iPhone X(S)-like quality - colors, contrast, viewing angles and all.
Google is so close to making a smartphone with a display that could be considered among the best. Google Pixel 3 XL Forums The Future for Pixel Displays - A Preamble
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