Patent ID: 11953786
Assignee: JAPAN DISPLAY INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G | IPC F  G

Claim 0:
1. A display device comprising:
a first substrate having a first front surface and a first back surface on a side opposite to the first front surface;
a liquid crystal layer arranged on the first front surface of the first substrate;
a light guide plate having a first surface facing the first front surface of the first substrate, a second surface on a side opposite to the first surface, and a first side surface intersecting the first surface and the second surface;
a light-emitting element portion having a plurality of light-emitting diode elements each arranged at a position facing the first side surface of the light guide plate and along a first direction; and
a lens portion arranged between the light guide plate and the light-emitting element portion,
wherein the light-emitting element portion, the lens portion, and the light guide plate are arranged along a second direction intersecting the first direction,
wherein the lens portion includes:
a first lens arranged between the light guide plate and the light-emitting element portion, and having a first light-entering surface, a first light-exiting surface on a side opposite to the first light-entering surface, and a plurality of first prisms arranged on the first light-exiting surface; and
a second lens arranged between the first lens and the light-emitting element portion, and having a second light-exiting surface arranged at a position facing the first light-entering surface, a second light-entering surface on a side opposite to the second light-exiting surface, and a plurality of second prisms arranged on the second light-exiting surface,
wherein the first lens includes a plurality of first diffusing prisms arranged on the first light-entering surface and capable of diffusing light emitted from the second lens and introducing said light into the first lens.