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Uncalibrated – Maximum Backlight Level
ViewSonic rates the VX2738-2K at 200 nits. This tracks when measuring a full field pattern with OLED APL (variable brightness) turned off. To see its full potential, I turned it on and measured a 25% window for 381 nits. This also improves gamma, which in turn improves image quality by quite a bit. I’ll show more detailed tests on the next page. Black levels and contrast cannot be measured.
After Calibration to 200 nits
Calibration makes no difference to the contrast result. I set 200 nits based on a full field pattern so that meant brightness was turned up all the way. This maximizes the VX2738-2K’s image quality and fidelity. Black levels, static contrast and ANSI contrast cannot be measured.
Test Takeaway: The VX2738-2K delivers contrast performance that’s equal to any OLED monitor. With infinite black levels, the picture has a depth and quality that no LCD can match. To get the best result, I recommend leaving OLED APL (variable brightness) on all the time. It’s not aggressive in operation, so it is appropriate for productivity and color-critical tasks.
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