The invention provides a
gamma correction buffer circuit which comprises a judgment unit and a
control unit. According to judgment unit, when a circuit
system where the
gamma correction buffer circuit is located is powered on, whether digital working
voltage of the
gamma correction buffer circuit is larger than or equal to threshold value
voltage of the gamma correction buffer circuit or nor is judged. According to the
control unit, when the digital working
voltage is determined to be smaller than the threshold value voltage, an IIC serial
bus of the gamma correction buffer circuit is prohibited from being operated, data are not allowed to be written into a storage unit of the gamma correction buffer circuit through the IIC serial
bus, and when the digital working voltage is larger than or equal to the threshold value voltage, the
control unit controls the IIC serial
bus to be allowed to be operated, and the data can be written into the storage unit of the gamma correction buffer circuit through the IIC serial bus. The invention further provides an anti-interference method and a
display device. According to the technical scheme, external disturbance can be prevented from affecting the data in a register of the gamma correction buffer circuit, the capacity of resisting the disturbance of a
system is enhanced, and stability of the
system is improved.