Laptop display problem are caused commonly due to failures with a certain hardware component, with the most common one being (in order): the inverter, the “lid closed” switch, the power cable, the LCD, and the backlight. In such case, you may observe the following symptoms:
1. The laptop will start normally but the screen will remain black. If the laptop is moved, it will then turn on and work as normal. In this case, the cause of the laptop display problem is likely a failed cable.
2. If the laptop seems to start normally but then remains every dark with a slight color change and a faint image, the cause is likely a damaged inverter or a defective cable.
3. If the display shows up dark with slight pink or red lines, the cause is probably a failed backlight.
4. If the screen flickers to life but then goes dark, and flickers again when it is moved or tapped, the cause is probably a failed cable or LCD.
5. If your screen stays black, or conversely, turns white with no picture at all, check to see if it works with an external monitor. If it does, then the cause of your laptop display problem is either a failed cable or a defective LCD.
6. If there are stripes visible on your laptop screen–which can either be vertical or horizontal–and they change when the screen is moved or tapped lightly, you likely have a failed cable or defective LCD.
In most of the above cases, you may learn a lot by plugging your laptop into an external monitor. For everything to show up normally, you may have to press a specific key combination–typically the “Fn” key along with one of the “F1? to “F10? keys–depending on the brand of your laptop.
Finally, check to see if your laptop display problem isn’t simply caused by the “lid closed” switch being stuck. Push it a few times to see if this causes any changes.
Also here are other posts related to Laptop Display Problems and their solutions . Check them.