If your laptop's screen is starting to get cloudy, white spots appear in the screen. You may not necessarily need to replace the screen. If the problem is purely software-related, it is likely that you only need to replace the affected pixels. To check if the problem is a hardware issue, try using an external monitor. In many cases, a simple replacement of the damaged pixels will solve the problem. Sometimes the white spots on the screen are caused by internal hardware. The problem might be the graphics card or the screen's LCD.