GLCD Sp14n003 Connection to ArduinO UNO

could anyone please help me with the connections of SP14N003 to Arduino UNO.
the GLCD is based on LC7981 and it needs a -15v input..i dont know where i am going wrong but i am not able to display anything on it..just the backlight is available but no text or anything...
if anybody out there has a solution please respond..i'll give my contact details to get u in touch

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