Which replacement screen to choose?

[Lockheed]

I have a 15.4" R61 (takes the same screens as T61 so I put this post here as this forum is more frequented).
The screen (Samsung) has a slight pressure mark right in the middle and I'd like to replace it with an LG one.

However, service manual mentions two different LG-Philips models as possible WSXGA+ replacements:
13N7020
42T0423

I any of them batter than the other? My Samsung's PN is 42T0329 and so similar to the later LG PN. Does it mean that the other LF is a newer part and hence improved? Should I go for it?

Or perhaps there is some better unofficial replacement option all together?

[Harryc]

According to the Thinkwiki, both of those FRU#'s are identical -
http://www.thinkwiki.org/wiki/TFT_display