Removal/repair of the display
Unscrew the 20 Phillips screws on the underside of the T42.
Unscrew the 2 Phillips screws on both sides of the T42's rear.
Flip the laptop over and open the screen.
Carefully maneuver the palm rest away from the keyboard, as both the keyboard and palm rest/trackpad will come off together.
Remove the plastic bezel along the edges, you may need to pry the areas circled with a spudger to remove the bezel.
Unscrew the screws holding down the display.
Carefully unplug the display ribbon on the motherboard, then carefully lift the display free from the device.