Friday, January 11, 2013

Cracked laptop screen but good backlight, or good screen but dead backlight

If you have a laptop with a cracked screen but good backlight, or a good screen with dead backlight, find the other. You will find plenty sellers on craigslist with laptops that have the same size screen as yours, but dead backlight or cracked screen. Find the one that works for your situation. This way you can fix your laptop screen cheap as chips instead of buying a new screen for a 100 bux or more.
 
You can disassemble the screen. A laptop screen is made in two completely different pieces.

1. Screen where the image appears

2. Backlight

The backlight is what makes most of your screen. It's a flat sheet of clear or offwhite plastic which illuminates when the CCFL or LED bulbs underneath it are turned on. The whole casing of the laptop screen is primarily backlight with image screen pasted on top. The image portion of the screen is another sheet of semi-opaque plastic with electronic trickery and magic on it, which can not be seen until it is illuminated from behind, hence backlight.

Lets say you have a dell laptop with a 15.4" screen that has a dead backlight. And you just out of no where happen to find a dell laptop 15.4" screen that has a working backlight but cracked imagery. All you have to do really, is take a blade, cut out the tapes surrounding your screen housing, carefully pry open the housing, separate the image screen from the backlight, it should just come right off, with the circuitry on the top back, and place it on the screen that has a working backlight. There you go, put the casing together, you're done. Dispose of the cracked screen and the dead backlight, they are no further use.

This trick will only work when you have two of the same sort of screens, i.e. either CCFL backlit screens or LED backlit screens. LED backlit screens do not have inverters, hence no where to plug the CCFL backlight plug, same with the  CCFL backlit screens, they do not have the connector for an LED light strip, they have an inverter.

Some HP or Toshiba screens will light up and work fine with your dell CCFL backlight casing.

0 Comments:

Post a Comment

<< Home