Is this a serial LCD?
Seems like it:

DATA is probably your input serial data line

WR is probably a write enable

CS seems like a chip select for the control to me

LED- and LED+ are the power and gnd for the backlight

Oh and since there's no clock signal it's probably a uart interface like a RS232 (probably not at RS232 voltage levels though).  Maybe try that first messing around with the baud rate until you get some garbage or a character to show up.  There's probably also single character commands to clear the LCD which you can figure out by trying.  Like sending 0x01 clear or something like that.