Depending on the design of the monitor, the front and back of monitor both are flat. The thickness of this monitor is approximate 1.5 inch. It is also called liquid Crystal Display. The structure of this monitor is look like flat as laptop computer. This monitor is expensive than CRT monitor. This monitor is available in market in different size. Such as 15”, 17”, 19”, 21” etc. 

For examples: we can see such types of monitor in below figure.