Viewing Angle - Color Temperature Offset - Power Consumption

Viewing Angle & Color Temperature Offset

LCD monitors are usually advertised as having a viewing angle of somewhere between 140 and 165 degrees. This means that you can still see what's on the display if you are looking at it at 70 to 83 degrees from the side. However, most of the time, you will be sitting roughly straight in front of the screen, which means that you are looking at 0 degrees to the center of the screen and at most 45 degrees to the sides. Compared to the advertised viewing angle, it is much more relevant that the display does not change brightness or color in the corners. 

Above a 0% view angle, we look directly at the screen. Below the viewing angle at sharper horizontally position camera angles.

Here's where TN normally runs into issues, IPS is so much better in this respect. Well that and overall display quality.

When you look at brightness and discoloration alongside the viewing angle then that will tell you something about the image quality when you are not looking straight at the screen. TN screens always show discoloration to some degree where IPS and VA screens are less sensitive to that. 

With a simple colorimeter we can check out the color temperature and values with the monitor at default settings. We approach color precision in a simple to understand and explain method, this test is simple. We look how close the screen is to a color temperature of 6500 Kelvin based on a sRGB color space. This test is done at default monitor settings.

In the chart above, the lower the value is, the better. The screen showed numbers just almost 7500K, and that is a little high. Indicating that the monitor is not color precise enough in its default settings. HOWEVER, if you switch the display to "warm' settings, then the screen will be roughly 6500K, smack down in the middle what it needs to be. The monitor does offer very good RGB tweaking. On color precision, really the screen is nice overall, no worries. Some take color precision into extreme detail as they work with say photoshop on a professional basis where this is very important. For gamers, that's a little different and less important.

Overall, good viewing angles, nice brightness, good contrast, vivid, sharp and good colors after a hint of tweaking. 

Above a chart on power consumption  measured in three ways. A white screen, a black screen and then in standby mode. Mind you that TFT TN screens are always lit, as such the results in-between white and black will be small. With IPS the differences will be a little more subtle. The 34UM67 is a relatively power friendly monitor. In standby 1 Watt and displaying either white or black consumes give or take 40 Watts.