where do I find a software to install my TV LG LH3000 on my computer?

[arwen6]

I would like to install my tv lg lh3000 on my laptop so that I can use it as a screen, at the moment it just works as a secondary screen and it will not let me make it primary, which prevents me from being able to see anything on it, i suspect this is because i don't have a software installed for it, but I don't know where to find it! Thank you