z580 Special Feature (Touch Buttons)

The keyboard and touchpad of the z580

These are "buttons" that make this laptop unque and special.

The buttons:

1. By putting your finger on this icon you can either mute or unmute the sound
2. Increase volume
3. Decrease volume
4. CHANGE THE SATURATION OF THE SCREEEN!!! There are three screen modes. Standard, Film and Intelligent. The modes are made for the different things you want to do on you laptop. The film mode for instance offers richer colors and a fuller sound, the standard mode is for web browsing and all of the other basic things you do on a computer. The Intelligient mode is for working with Photoshop and other programms similar to that. 
5. I know that this buttonis for regulating the fan. I am not able to change what the fan does just by clicking on it. Maybe its just to show the user what the status of the fan is. It ould be great if the user could decide what he/wants the fan to do. The options are: Standard, very quiet, riddance of heat, and cleaning away the dust.