The Backlight FAQ
What is a backlight?
Think of a fluorescent light bulb. The 8’ long, skinny bulbs you see on the ceiling in certain buildings. A CCFL backlight in a laptop is really a lot like that. Most laptop LCDs have one long bulb in them. A fragile foil like reflector piece reflects light evenly across the back of the LCD.
Is my backlight bad?
If you can barely see what is happening on your display, chances are you have a bad backlight. All backlights eventually go bad. In laptops, no display can also be caused by a bad LCD cable, a bad LCD inverter, a loose connection and in rare cases, a bad motherboard (yes, even if your laptop displays fine on an external monitor. This is rare and only seems to occur on a few models.)
How does a backlight go bad?
Like any light bulb, backlights wear out and go bad. The more they’re used, the quicker they burn out. Most last 2 or 3 years although some only last a year and some chug away for 5 or 6 years.
They also crack. If your laptop is bumped around at all or dropped, the bulb can break. Even just moved around a little seems to break them on some rare occasions.
Often when a backlight is ready to quit, the screen will have a red tint to it when first powered on.
How do I get my backlight replaced?
For details on getting your laptop’s LCD backlight replaced, check out our LCD backlight repair services.
Can I do it myself?
Maybe. Yes, it is possible. But if you’re asking this, you’ll probably want to have a professional do it. On our backlight repair page there is more information on how to go about replacing it yourself.
Think of a fluorescent light bulb. The 8’ long, skinny bulbs you see on the ceiling in certain buildings. A CCFL backlight in a laptop is really a lot like that. Most laptop LCDs have one long bulb in them. A fragile foil like reflector piece reflects light evenly across the back of the LCD.
Is my backlight bad?
If you can barely see what is happening on your display, chances are you have a bad backlight. All backlights eventually go bad. In laptops, no display can also be caused by a bad LCD cable, a bad LCD inverter, a loose connection and in rare cases, a bad motherboard (yes, even if your laptop displays fine on an external monitor. This is rare and only seems to occur on a few models.)
How does a backlight go bad?
Like any light bulb, backlights wear out and go bad. The more they’re used, the quicker they burn out. Most last 2 or 3 years although some only last a year and some chug away for 5 or 6 years.
They also crack. If your laptop is bumped around at all or dropped, the bulb can break. Even just moved around a little seems to break them on some rare occasions.
Often when a backlight is ready to quit, the screen will have a red tint to it when first powered on.
How do I get my backlight replaced?
For details on getting your laptop’s LCD backlight replaced, check out our LCD backlight repair services.
Can I do it myself?
Maybe. Yes, it is possible. But if you’re asking this, you’ll probably want to have a professional do it. On our backlight repair page there is more information on how to go about replacing it yourself.
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