Computer Display Eye Hazard

24/09/2018 15:07

Pulse Width Modulation is used to economise on the lighting in displays. It does this by cycling the backlight on and off at a frequency you can't necessary detect with the naked eye, but which could lead to eye issues, headaches etc. This method generally means that at 100% brightness a constant voltage is applied to the backlight and it is continuously lit. See: technique can lead to migraines, headaches or eyestrain. The problem comes from the flickering light. Some computer displays are very harmful if you use them intensely. Here is a list of systems which you can use to determine which model you are using and which are free from pulse modulation effects: