I have an old laptop, that got dropped.... Bulb got smashed, and I also put in a new inverter, landed on that corner. Now when I boot it, there's a rectangle, bout 1 1/2" x 2", not on in the corner. It's a perfectly rectangle area, with no broken smears, or signs of damage.
I'm wondeing, before I tear it apart again, is it just possibly a bad connection? or is it really a broken screen.