|"since I don't think any wiring moves when I bend the top left corner of the display. I'll probably end up buying a new LCD,"|
In that case the display assembly circuits are damaged and you need to buy a new or re-furbished (the ad says the backlight or CCFL was replaced) display assembly for your model.
Did you drop this laptop or otherwise subject it to a physical jolt ?
BEFORE you do that, connect an external monitor to the laptop to make sure there's nothing wrong with the display on that which would indicate there's nothing wrong with your video adapter - if there is a display problem on that too you need to replace the mboard.
See the above info at the link I provided, and.....
DO NOT plug in or unplug a monitor's video cable into / from a video port while the computer is running. Doing so can damage the monitor's circuits and/or the video adapter's circuits.
Some laptops will display on an external monitor without you having to do anything.
If you get no video on an external monitor, some laptops have a key combo that you must press to toggle the display to external video only / built in display video only / sometimes both - see the Owner's or User's manual for the model.