Electronic device

An electronic device includes a display unit, a voltage generation unit, a grayscale adjustment unit, and an overdriving unit. The display unit has a relationship curve between a transmittance and a driving voltage. The relationship curve has a predetermined voltage value corresponding to a maximum transmittance. The voltage generation unit is used to generate a first voltage according to a first grayscale, and generate a second voltage according to a second grayscale. The first grayscale is larger than the second grayscale. The first voltage is higher than the second voltage and the predetermined voltage value. The grayscale adjustment unit is used to receive a first target grayscale value. When the first target grayscale value is equal to the first grayscale, the grayscale adjustment unit output the second grayscale. The overdriving unit is used to overdrive the second voltage corresponding to the second grayscale to obtain a first target driving voltage, and provide the first target driving voltage to the