I would love to upgrade the screen on my 4530s! However I think 1920x1080 would be a little small on a 15.6" screen. 1600x900 seems like it would be perfect though. Is there any reason 1600x900 wouldn't work if 1920x1080 does? I read the whole thread and it seems no one with a 4530s has tried a 1600x900 panel and confirmed that it works.
I emailed latopscreens.com to ask if they knew of a 1600x900 panel that would work and got this reply:
http://www.laptopscreen.com/English/screen-part-number/LP156WD1(TL)(B2)/
Please, be forewarned that resolution upgrades most of the time do not work.
I'm kinda reluctant to be the first to try since I have zero experience with these types of things. On other hand, I am very much tired of the mediocre stock screen.