Display device including a fingerprint sensor

A display device, comprising:

• a substrate including a fingerprint area including a first area and a second area enclosed by the first area, wherein the first area contacts the second area;
• a light-emitting element layer including light-emitting elements configured to emit light of a same color, wherein the light-emitting elements include a first light-emitting element arranged in the first area and a second light-emitting element arranged in the second area;
• and
• a sensor layer including a plurality of photosensors configured to receive dispersed and/or scattered light during a sensing period, wherein the photosensors include a first photosensor arranged in the first area and a second photosensor arranged in the second area,
• wherein, during the sensing period, the first light-emitting element emits light and the second light-emitting element does not emit light,
• wherein, during the sensing period, the first photosensor senses the dispersed and/or scattered light from the first light-emitting element, and the second photosensor senses the dispersed and/or scattered light from the first light-emitting element,
• wherein the first area is an emission area and the second area is a non-emission area during the sensing period,
• wherein the display device further comprises a fingerprint detector configured to receive sensing signals from photosensors including the first photosensor disposed in the area corresponding to the first area to generate a fingerprint authentication image, and to receive sensing signals from photosensors including the second photosensor disposed in an area corresponding to the second area to generate a fake verification image, and
• wherein patterns of the fingerprint area defined by the emission area and the non-emission area are identical during both fake fingerprint verification and fingerprint authentication.