Is there a way to toggle the screen on and off?

I'm have my VAIO hooked up to a big ViewSonic monitor, and often don't use the screen on the laptop, so would like to know if there's a way to toggle the laptop screen on and off. Just trying to save a little energy and keep the computer cooler. I'm looking for something that does more than just dim the screen the way the F5 and F6 keys do.

The model is a VPCEF34FX running Windows 7 Home. Thanks.

 

The Fn + F7 based upon what i am seeing in this picture - http://images.amazon.com/images/G/0...ny-vaio-q42010-ef-black_matte-keyboard-lg.jpg

which is right next to ur dimming keys with the semi standard, switch displays button logo shows. If it switches both hit it again and again until it gets to the external only mode.

 

Windows Key + P
This brings up a list that allows you to toggle things off and on

 

Do a search for max brightness registry (my thread). With some regedits you can set the lowest brightness setting to turn the panel off.

 

beaups suggestion is a good one from the power consumption standpoint. However, in your case the downside is that you would be extending windows from your external monitor to your laptop screen, and then turning off the laptop screen backlight, so that it appears to be off. It becomes too easy to 'lose' stuff (like the mouse) in this screen that appears to be off but isn't. That seems a little pointless. In that case, you are better off just toggling off (Windows+P) the extended mode and running external monitor only.

 

Whoops I didn't notice he's using an external monitor lol. Just close the lid on the laptop...make sure in power settings it's not set to go to sleep/power off when you close the lid.