US 11,988,865 B2
Display device
Zhengyi Gou, Tokyo (JP); Kentaro Okuyama, Tokyo (JP); and Hisanori Kawakami, Tokyo (JP)
Assigned to Japan Display Inc., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Mar. 29, 2022, as Appl. No. 17/656,962.
Application 17/656,962 is a continuation of application No. PCT/JP2020/029798, filed on Aug. 4, 2020.
Claims priority of application No. 2019-181999 (JP), filed on Oct. 2, 2019.
Prior Publication US 2022/0221644 A1, Jul. 14, 2022
Int. Cl. F21V 8/00 (2006.01); G02F 1/1334 (2006.01); G02F 1/1343 (2006.01)
CPC G02B 6/0078 (2013.01) [G02B 6/0068 (2013.01); G02F 1/1334 (2013.01); G02F 1/134309 (2013.01); G02F 2202/28 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel having a main surface and a first side surface orthogonal to the main surface, and comprising a polymer dispersed liquid crystal layer including a polymer extending along a first direction; and
a first light emitting module provided along the first side surface, wherein
the first light emitting module includes:
a plurality of first light sources arranged in the first direction;
a plurality of second light sources arranged in the first direction;
a first light guide; and
a second light guide;
the plurality of first light sources and the first light guide face the first side surface of the display panel and are arranged in this order in a second direction, such that the first light guide is positioned between the plurality of first light sources and the display panel,
the plurality of second light sources and the second light guide that face the first side surface of the display panel are arranged in this order in the second direction, such that the second light guide is positioned between the plurality of second light sources and the display panel,
the first direction and the second direction cross each other and are parallel to the main surface,
the first light guide includes a first end surface extending along the second direction,
the second light guide includes a second end surface extending along the second direction,
the first light guide and the second light guide are arranged in the first direction, and
the first end surface of the first light guide and the second end surface of the second light guide face each other with an air layer interposed therebetween in the first direction.