Different resolution on laptop display

"This depends on the manufacturer. I was able to swap out the 1680x1050 w/ CCFL backlight display in my notebook with a 1920x1200 w/ LED backlight -- but I had to make sure the new panel would mate with the same inverter and cable. My original panel was LG, but the replacement panel was a Samsung. The model numbers and compatible replacement part numbers specified by the manufacturer made it easier finding panels that mate. The 1920x1200 panel wasn't offered for my machine, but was a compatible Dell part.

The cable that comes off of the motherboard branches off in a Y-split, a smaller connector carrying power to the inverter, and a larger connector that goes to the panel itself carrying display data (LVDS). Making sure the panel mates with your existing step is crucial."