The invention discloses a display and an electronic device. The display comprises a display area, a fan out area and a reference voltage generating circuit formed in the fan out area, and is characterized in that the reference voltage generating circuit comprises a multipath voltage conversion module for inputting first DC voltage and second DC voltage and outputting multiple paths of third DC voltage with different voltage values, a latch module for inputting multiple paths of latch signals and gating signals and outputting corresponding switch control signal according to the inputted multiple paths of latch signals and gating signals, and a gating switch matrix provided with multiple switch branches for controlling output of the multiple paths of third DC voltage and used for conducting a corresponding switch branch according to switch control signals when the switch control signals are received to output third DC voltage corresponding to a voltage value. The reference voltage generating circuit formed in the fan out area of the display is formed, and the generated reference voltage can be adjusted.