Why are some monitors muddy and some are bright?

Answer:

This is usually determined by the ability of the monitor (led backlit or not), and the contrast ratio. You can also try adjusting the brightness/contrast settings on the monitor
because u necessitate to adjust the visual and contrast settings thats adjectives
You can adjust the visual settings right on the front, but some monitors step bad next to age as well. it depends on what character it is, how old it is, and if somebody have messed with it.
because the contrast and brightness settings own been in the swing of things