Yes, LCD have a light, that is always ON, the LCD then sits in front of this light and filters it to let the right colors through, this is why LCD screens don’t do well with blacks.
What kind of racist claptrap are you ... oh, wait. Never mind.
In the early days of LCD monitors, the big problem was the backlight fading. So the manufacturers amped up the backlight. I'm watching these letters march across a screen that's at about 22% brightness. When, as years go by the backlight loses its oomph, I'll bump ir up a little at a time. If I ran this damn thing at 100% brightness, I could use it to signal passing aircraft.
Once you tweak the brightness and contrast a bit, LCD TVs and monitors display black just fine. The blacks aren't as black as on a CRT, but the other colors are so much better and the picture so much sharper that it's more than a good trade.
< /sarcasm>
You just kew somethin' like that was gonna turn up, didn't ya!