US Patent 9245935 Light-emitting device

A light-emitting device in which electrical characteristics of a transistor in a pixel can be monitored without degrading display quality is provided. The light-emitting device includes a plurality of pixels each comprising a pixel circuit. A pixel circuit included in a first pixel is electrically connected to a light-emitting element included in a second pixel through a first switch. A pixel circuit included in the second pixel is electrically connected to the light-emitting element included in the second pixel through a second switch and to a light-emitting element included in a third pixel through a third switch. The pixel circuits are connected to a correction circuit through switches.