Self-emission type display device

摘要

A self-emission type display device is disclosed. A current comparator circuit ( 47 ) in a data line drive circuit having a current compensating function ( 2 ) detects only the result of size comparison between the current amount due to the degeneration of a self-emission element and a reference value. The reduction of the current amount below the reference value is stored by being added to the least significant bits of a display data storage circuit ( 30 ). In accordance with the display data read from the storage circuit ( 30 ), a D/A conversion circuit ( 41 ) generates a write signal voltage.