Semiconductor energy laboratory co., ltd. (20250013333). Display Device
Display Device
Organization Name
semiconductor energy laboratory co., ltd.
Inventor(s)
Display Device
This abstract first appeared for US patent application 20250013333 titled 'Display Device
Original Abstract Submitted
a display device having a photosensing function is provided. a display device having a biometric authentication function typified by fingerprint authentication is provided. a display device having both a touch panel function and a biometric authentication function is provided. the display device includes a first substrate, a light guide plate, a first light-emitting element, a second light-emitting element, and a light-receiving element. the first substrate and the light guide plate are provided to face each other. the first light-emitting element and the light-receiving element are provided between the first substrate and the light guide plate. the first light-emitting element has a function of emitting first light through the light guide plate. the second light-emitting element has a function of emitting second light to a side surface of the light guide plate. the light-receiving element has a function of receiving the second light and converting the second light into an electric signal. the first light includes visible light, and the second light includes infrared light.