Patent ID: 11882755
Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC H  A  G  Y | IPC A  G  H

Claim 8:
9. A display device comprising:
a first substrate;
a second substrate;
a light guide plate;
a light-emitting element;
a light-receiving element;
a first transistor;
a second transistor;
a light-blocking layer; and
a lens,
wherein the first transistor is electrically connected to the light-emitting element,
wherein the second transistor is electrically connected to the light-receiving element,
wherein the first transistor, the light-emitting element, the second transistor, and the light-receiving element are provided on a first surface side of the first substrate,
wherein the light-blocking layer and the lens are provided on a first surface side of the second substrate,
wherein the first surface side of the first substrate and the first surface side of the second substrate face each other,
wherein the lens and the light-receiving element overlap with each other,
wherein the light-blocking layer and a region between the light-emitting element and the light-receiving element overlap with each other,
wherein the light-emitting element is configured to emit light through the light guide plate, and
wherein the light-receiving element is configured to receive light entering through the light guide plate.