Lower part of screen displays garbled colors

Problem description:

The lower part of laptop screen displays garbled colors and the upper part of the screen works just fine.

Possible cause:

LCD screen failure.

Possible troubleshooting steps and repair solution:

When a part of the laptop screen works properly and another part has garbled image and colors, the problem is related to the LCD screen failure. The screen cannot be repaired and has to be replaced with a new one.