You can calibrate your screen so that it shows more accurate color. This is especially useful if you are involved in digital photography, design or artwork.
You will need either a colorimeter or a spectrophotometer to do this. Both devices are used to profile screens, but they work in slightly different ways.
Make sure your calibration device is connected to your computer.
Open the
Click on
Click
Click
Select your screen.
Press
Screens change all the time: the backlight in a TFT display will halve in
brightness approximately every 18 months, and will get yellower as it gets
older. This means you should recalibrate your screen when the [!] icon
appears in the
LED screens also change over time, but a much slower rate than TFTs.