2 tips on LCD
Save laptop battery - reduce screen brightness
To save the battery of your laptor you can reduce the brightness of the LCD screen. This will increase the battery life for at least 50%.
Also, make sure to put a blank screensaver with short timeout (something like 1 minute) - no need to waste battery when you're not working.
LCD screen resolution
If you are working with an LCD screen always set the screen resolution to the maximum resolution it supports (which is called its "native resolution").
If you set the resolution to anything lower - the screen will perform interpolation. The result would be as if, for example, a 800x600 image was scaled up to a 1024x768 size, which of course will result in a blurry picture.