Patent ID: 11914243
Assignee: JAPAN DISPLAY INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G | IPC F  G

Claim 0:
1. A display device having a display region and a peripheral region around the display region, the 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 second substrate having a second back surface facing the first front surface and a second front surface on a side opposite to the second back surface;
a liquid crystal layer arranged between the first front surface of the first substrate and the second back surface of the second substrate;
a first light guide plate which has a first light incident side surface and a first opposite side surface located on a side opposite to the first light incident side surface in a first direction and is bonded and fixed on the first back surface of the first substrate via a first adhesive layer;
a second light guide plate which has a second light incident side surface and a second opposite side surface located on a side opposite to the second light incident side surface in the first direction and is bonded and fixed on the second front surface of the second substrate via a second adhesive layer;
a first light source unit which includes a plurality of first light emitting diode elements, is arranged on the first back surface of the first substrate, and is arranged at a position facing the first light incident side surface of the first light guide plate;
a second light source unit which includes a plurality of second light emitting diode elements, is arranged on the first front surface of the first substrate, and is arranged at a position facing the second light incident side surface of the second light guide plate; and
a reflection film covering the first opposite side surface and the second opposite side surface,
wherein the first light incident side surface of the first light guide plate and the second light incident side surface of the second light guide plate are on the same side in the first direction,
wherein the first adhesive layer is arranged in the peripheral region,
wherein the second adhesive layer is arranged in the display region,
wherein, in the display region, an air layer is interposed between the first substrate and the first light guide plate, and the second adhesive layer is interposed between the second substrate and the second light guide plate,
wherein the reflection film has a first reflection surface attached to the first opposite side surface and a second reflection surface attached to the second opposite side surface, and
wherein, in the peripheral region, the first light guide plate, the first adhesive layer, the first substrate, the second substrate, the second adhesive layer, and the second light guide plate are interposed between the first reflection surface and the second reflection surface.