Your laptop can be used as a desktop computer that saves space and can also move with you in a few easy steps. Plus, by using a larger monitor, such as an EIZO, instead of your laptop's built-in LCD screen will mean it'll last longer.
When the LCD on a standard laptop is closed while it's running the laptop will switch to sleep mode, however if this function is switched off, you'll be able to use your laptop as a 'small desktop computer'. Then by connecting a keyboard and mouse to the laptop via USB ports, you can complete your mini desktop PC set-up.
By switching sleepmode off the operating system will keep running so you can carry out normal operations using the external keyboard and mouse, and also use the laptop's built-in optical drives. With some operating systems, you can switch sleepmode off by right-clicking on your laptop's desktop and selecting properties where you'll find the power settings but it's worth checking the specific instructions for the OS you are running.
If you're a Windows 7 user go to the Control Panel and click on 'Hardware and Sound'. Next, find the 'Power Options' and this is where you'll be able to tell the laptop to not enter sleepmode when the cover is closed.
For more information on EIZO's large, high resolution LCD monitors, take a look at the EIZO