Display devices, display modules and electronic devices

Abstract

A display device with light detection function is provided. A highly convenient display device is also provided. The display device includes a display section containing a light-receiving element and a light-emitting element. The light-receiving element includes a first pixel electrode, an active layer, and a common electrode. The light-emitting element includes a second pixel electrode, a light-emitting layer, and a common electrode. The active layer is located on the first pixel electrode. The active layer contains a first organic compound. The light-emitting layer is located on the second pixel electrode. The light-emitting layer contains a second organic compound different from the first organic compound. The common electrode includes a portion overlapping the first pixel electrode across the active layer and a portion overlapping the second pixel electrode across the light-emitting layer. Preferably, the display device further includes a common layer located on the first pixel electrode and the second pixel electrode. The common layer includes a portion overlapping the active layer and a portion overlapping the light-emitting layer.

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