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There won’t be any comparisons for my review of the PD2770U. I tested it in its out-of-box state using the most common picture modes. It’s all about color accuracy so response and lag tests carry less weight given the monitor’s design intent.
Pixel Response and Input Lag
Click here to read up on our pixel response and input lag testing procedures.
· Response Time Full black to white transition – 8.1ms
· Absolute Input Lag Full black to white transition – 24.4ms
The PD2770U is a 60 Hz monitor without Adaptive-Sync or overdrive. It isn’t suitable for anything but casual gaming but it isn’t the slowest monitor I’ve encountered. In the LDAT test, it drew the one-inch square in 8.1ms from black to white. Though there is motion blur, it isn’t enough to distract in slower-paced games like Myst. Just don’t try to engage in a fragging session; it won’t be pretty. The lag score is surprisingly low at 24.4ms. If you do play a shooter, the PD2770U will respond quickly to control inputs.
Test Takeaway: Gaming content creators might want a monitor with Adaptive-Sync and a faster refresh rate than the PD2770U. But it does a decent job with control inputs thanks to surprisingly low lag.
Viewing Angles
The PD2770U has average off-axis image quality when compared to other IPS monitors. The side view is a bit red in tone with no significant change to brightness or gamma. Though you won’t be likely to share a 27-inch monitor, it can be done if needed. The top view is a tad blue with reduced gamma and brightness.
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Screen Uniformity
To learn how we measure screen uniformity, click here.
· Screen Uniformity Deviation From Center 0% Black Field – 10.18%
To measure the PD2770U’s uniformity, I switched each picture mode to Brightness First. The default is Uniformity First and it reduces brightness by around 30%. Uncompensated, a score of 10.18% is about average for the IPS monitors I’ve tested. The meter noted a hotspot in the lower right corner, but I could not see this in actual content. With compensation turned on, the score dropped to 4.31%, a barely perceptible difference.
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Christian Eberle is a Contributing Editor for Tom's Hardware US. He's a veteran reviewer of A/V equipment, specializing in monitors. Christian began his obsession with tech when he built his first PC in 1991, a 286 running DOS 3.0 at a blazing 12MHz. In 2006, he undertook training from the Imaging Science Foundation in video calibration and testing and thus started a passion for precise imaging that persists to this day. He is also a professional musician with a degree from the New England Conservatory as a classical bassoonist which he used to good effect as a performer with the West Point Army Band from 1987 to 2013. He enjoys watching movies and listening to high-end audio in his custom-built home theater and can be seen riding trails near his home on a race-ready ICE VTX recumbent trike. Christian enjoys the endless summer in Florida where he lives with his wife and Chihuahua and plays with orchestras around the state.