Well, I'm not sure, but I think they're hybrid LCD designed to be thin and use less power to keep the laptop battery life up. I think the basics are same.
Laptops use normal LCD screens.
Pros for CRTs:
More flexable with resolution (Can usually go higher, and never a scaling problem when going lower).
Cheaper initialy.
Quality is generaly good even on lower end models. (More mature technology.)
Never any ghosting.
Cons for CRTs:
Pixels can blend togeather a bit for a less sharp image.
Produces more heat and uses more power than an LCD.
Tube Size is not always the actual usable screen size (17" means 16.1" usable usually for example)
If not a flat screen, can cause eye strain.
Pros for LCD:
Lower power consumption, and gives off less heat.
Very sharp picture.
Screen size is exactly as advertized (17" means 17")
Less space on the desktop.
With DFI input, all digital.
Flat Screen easier on the eyes.
Cons for LCDs:
More expensive than CRTs.
Need to check contrast, brightness, and latency specs.
Potential for ghosting
Dead pixels can be annoying.
Potential issues with using lower than optimal Resolution.
now, LCDs have gotten much better. I love my Hyundai L90D+, and have no complaints about it, even if I run at a lower resolution. A 19" LCD has a better profile than a 17" CRT, uses less power, generates less heat, and looks a lot better in my opinion. I'd go LCD.