How can I get name of display manufacturer? Standard command doesn't work.

[Eugene El]

I want to know who is display manufacturer in my macbook pro (294),
OS X 10.9: LG or Samsung.
I tried to use standard command:
ioreg -lw0 | grep \"EDID\" | sed "/[^<]*</s///" | xxd -p -r | strings -6
But it doesn't work: nothing appears and terminal is supposed to hang.
Any other way to get display manufacturer name?

 

[gcrr]

system preferences > displays > color > open profile > scroll down to #17 > view model

Mine says A022...which means it's a Samsung.