LG M4720C Owner's Manual page 68

RS-232C
Transmission / Receiving Protocol
20. Tile Mode(Command : d d)
Change a Tile Mode.
Transmission
Data Description
00 or 11 Tile mode is off.
12 1 x 2 mode(column x row)
13 1 x 3 mode
14 1 x 4 mode
... ...
55 5 x 5 mode
* The data can not be set to 0X or X0 except 00.
Acknowledgement
Controlling the Multiple Product
A14