In a gradation display reference voltage generating circuit, first reference voltages (VH 0 to VH 63 ) produced by resistors for positive polarity (RH 0 to RH 64 ) of a first ladder circuit in a first reference voltage producing section (LDH) are output from reference voltage output terminals (T 0 to T 63 ), respectively, at the positive polarity drive, while second reference voltages (VL 0 to VL63 ) produced by resistors for negative polarity (RL 0 to RL 64 ) of a second ladder circuit in a second reference voltage producing section (LDL) are output from the reference voltage outputs (T 0 to T 63 ), respectively, at the negative polarity drive. A resistance ratio of the resistors for positive polarity (RH 0 to RH 64 ) is different from a resistance ratio of the resistors for negative polarity (RL 0 to RL 64 ).