Hacked Gadgets Forum

January 5, 2008

LCD Display Repair using LEDs

at 5:12 am. Filed under Computer Hacks, Electronic Hacks

Bob Davis shares his technique to repair laptop LCD display using some white LEDs. Bob has lots of interesting hacks documented and has some cool videos on Youtube.

“You first need to remove the screen from the laptop computer. Then you need to remove the metal trim at the bottom of the screen, assuming that is where the light is located. Some screens have connections to the screen that go around the backlight and make in nearly impossible to remove the light. Once the light is removed the LED’s can be glued in with a clear glue. You might want to solder the LED’s together in groups of 3 for 9 volts or 4 for 12 volts first. I used 1/2 inch spacing between the LED’s for more even lighting. Once the LED’s were glued in and working I used alumimum tape like what is used on furnaces to make a 1/2 inch strip to go on the display to cover the LED’s and to replace the metal strip I had removed. Be very carefull as the tape and the cover are conductive and will easily short out the LED’s. I used electrical tape to insulate the cover and my connections.”