Generally, the laptops should use the same LCD screen. The different models of the A105 is specific to the different components, but overall it is the same laptop. For example (and I am making this up) all with the same CPU:
A105 001 = 2GB of RAM + 320GB HDD
A105 002 = 4GB of RAM + 320GB HDD
A105 003 = 2GB of RAM + 500GB HDD
A105 004 = 4GB of RAM + 500GB HDD
A new LCD screen for your laptop will cost $70 with a 3 year warranty. You can search the web for better deals.
http

/www.laptopscreen.com/English/model/Toshiba/SATELLITE%20A105-S2141/