Dominic
I would like to contribute to the discussion as i have some experience on the subject. I am taking Alexander Technique lessons for some years now due to a chronic back problem. I can say pretty confidently that if someone does not have a specific physical issue e..g trauma form an accident, neck tension is there due to some reason(s). Personally i have neck and back tension for no apparent physical reason. Medical exams in the past 20 years have not shown any physical defect.
My question regarding all these situational and focused treatments is that even if someone can release the neck tension through a specific process, how can someone be sure the tension wont accumulate again? Unless it is discovered what creates the neck tension and stop the muscle tension increase, it is impossible in my opinion to create a sustainable free neck condition.
The first thing i discovered through the process is that it is impossible to adjust the neck tone unless the whole body is adjusted. It is just not possible the neck to be free if your feet, for example, are very tense.
Personally movement habits from my childhood years were creating the back problems. My highly tensed neck muscles were compressing downwards the whole spine create paid in the low back area. Each and every movement i was making was so unintelligent in natural body terms that my body adjusted in strange ways to make the movement. Some of them was neck, belly, and feet tension increase.
Once i discovered what set of tensions were created by the stimulus to move, i was able to stop increasing the neck tension from accumulating. In the end the neck and total body tension gets to where it should be. For every person the time to get to this state is very specific.
In terms of the bad displays, I can use the above technique to accommodate any display, however i can sense that the display IS the stimulus to cause the tension. and this can't be good. Intuitively i feel the need to avoid it and search for devices that don't cause this tension increase. However during my day i keep the body tension under check because unfortunately i need to use many different devices due to my profession.