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Brightness and Contrast

To read about our monitor tests in-depth, please check out Display Testing Explained: How We Test PC Monitors. We cover brightness and contrast testing on page two.

Uncalibrated – Maximum Backlight Level

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Philips Evnia 34M2C8600 — (Image credit: Tom's Hardware)

The one place where OLED lags behind LCD is in peak brightness. Some LCD monitors can render over 1,000 nits in a full-field white pattern, where OLEDs can show around 300-400 nits. But they get brighter when the white zone takes up less of the screen.

The 34M2C8600 peaks at 226 nits in SDR mode which is bright enough for any indoor environment. That’s a full-field white number. A 25% window pattern measures just over 400 nits. There’s enough light here for any application. With an unmeasurable black level, contrast is theoretically infinite. As impressive as the 34M2C7600 is, with almost 4,000:1, it can’t compare to any OLED.

After Calibration to 200 nits

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Since there are no RGB sliders, calibration of the 34M2C8600 is just setting brightness to 200 nits. I used a full-field pattern to create a fairly bright image. Some users may want to tone this down if their room is darker than mine. The 34M2C7600 maintains strong performance when compared to other LCD panels.

ANSI contrast cannot be determined for any OLED as the black squares are unmeasurable. The 34M2C7600 is a good performer but the OLEDs are on another level. This is a difference that can be seen in content during side-by-side comparisons.

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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.