Use "hot keys" Assigning functions to increase or decrease brightness - these two operations are divided into laptops.One of the key of the combination of both - Fn, and the other two each manufacturer chooses a laptop on your own.For example, if you use a laptop Asus, to increase the brightness, press the key combination Fn + F6, and to decrease it - Fn + F5.The desired function buttons to be shown as icons - usually a symbol of the sun, complete with plus and minus, multi-directional triangles or just two suns of various sizes.
Another way to change the brightness using the appropriate control of the operating system, which operates under the
direction of the laptop.Windows 7 to bring it to the screen, press Win, type "elements" and click on the line "Change power plan" that appears in a set of links.
In the applet with the sliders to the right of the inscription "Adjust the brightness of the plan" to set the desired brightness.There are two knobs - one allows you to specify the value of a laptop connected to an external power source, and the other controls the brightness of the screen when running on batteries.Complete the process by pressing the "Save changes".
If your laptop has a light sensor, using the Windows settings can be set automatically change the screen brightness according to its "exposure" - in the dark, the brightness will decrease in the sun - rise.To find out whether there are sensors in your laptop, click on "Change advanced power settings" in the above window, the applet "Control Panel."
window that opens will contain presets, divided into sections, each of which is revealed by clicking on the plus sign to the left of its name - open this section of the "Screen".If it has a setting called "Enable adaptive brightness control" means the notebook installed the necessary sensors, and your version of Windows allows you to use them.Set to "On" in the rows relating to the mains supply and the battery, and then click OK.