Hi
I have got a phillips  branded 2x16 char LCD, model LTN211F-10  it came out a poker machine, and I picked it up cheap second hand. 
It has an OKI M5259 LCD driver and a OKI M6222B-01 chip on it.  It has edge connectors for  +,-,contrast,RW,RS,E,d0-d7.  
I am pretty sure that this LCD can support i2c protocol, BUT I don't know which pins to connect it to.  Does anyone have a ref for the 6222B ? and the numbers of the I2C pins ?

cheers