ABSTRACT
The current cathode ray tubes with their shadow mask technology can do little to improve the apparent definition on the image-forming portion of their screen. Some manufacturers have improved other contributing factors, though. By using a time delay circuit in parallel with the primary circuit delivering the image signal to the tube the standard number of presentations of the image can be doubled. This is done by arranging for the receiver to show 100 (Europe) or 120 (USA) complete pictures a second. There is no extra information involved – it is simply shown more often. This has two effects. First, it vastly reduces any apparent flicker. Second, due to the brain and eye, in combination, having more pictures presented to them in any given time span there is an apparent, small, increase in perceived general image quality.
