The monitor’s default brightness and contrast are set at 100% and 50%, respectively. By choosing 35% of both brightness and contrast I achieved 100nit brightness of white. Brightness is controlled by means of modulation of the power of the backlight lamps at 180Hz frequency.
The color curves have a neat shape, but the default contrast setting is too high. If you reduce it to 45%, the minor bend in the top right part of the graph vanishes, and the measured curves almost ideally coincide with the theoretical one.
The results of my measurements for the digital and analog inputs do not differ much.
I wouldn’t say the color temperature is set up ideally, but this setup is good in comparison with many other monitors. The measurements were made at the default settings, while it is possible to adjust manually four of the six temperatures (except “sRGB” and “Native”).
Here’s a typical response time graph of a TN+Film matrix from LG.Philips LCD – you can compare it with the graphs of LG’s own monitors described earlier. The fact that the end section of the graph with the minimal response time of 14 milliseconds is rather long does not mean that this matrix is fast on transitions other than black-to-white. The fact is the measurements of the response time are performed at the maximum brightness and contrast and the matrix of the NX76LCD just becomes saturated at such settings and stops to distinguish between lightest color tones. In other words, 200 and lighter grays were reproduced as pure white and transitions like 0-to-255 and 0-to-200 were in fact the same. If the contrast is reduced so that the monitor would reproduce all colors, the graph will stretch horizontally and become just like the graphs of the earlier-described LG monitors.
The brightness measurements suggest that the low contrast ratio is not a consequence of some problems with the setup or electronics of the new LG monitors, but is rather a fault of the matrices these monitors are based on. I make this conclusion because the NX76LCD could not yield a contrast ratio of at least 200:1 at any settings, either.