I agree, it is more accurate to say “dot” structure in this case. In the digital age, pixel is used (by me) :-) A lossy file can help prevent degradation after many conversions.
This image unscientifically demonstrates the difference on a 21AXP22 with a higher dot count per sq. inch. I had to enlarge the image more before the dots began to resolve. Overall the screen looks less granular and brighter then the 15GP22. Both tubes have about the same emissions.
https://visions4netjournal.com/wp-co...725F8CEDCF.png