US 12,111,537 B2
Lighting device, display device, and method of manufacturing lighting device
Takeshi Masuda, Kameyama (JP); Hisashi Watanabe, Kameyama (JP); and Hirotoshi Yasunaga, Kameyama (JP)
Assigned to Sharp Display Technology Corporation, Kameyama (JP)
Filed by Sharp Display Technology Corporation, Kameyama (JP)
Filed on Jan. 22, 2024, as Appl. No. 18/418,899.
Claims priority of application No. 2023-024885 (JP), filed on Feb. 21, 2023.
Prior Publication US 2024/0280856 A1, Aug. 22, 2024
Int. Cl. G02F 1/13357 (2006.01); G02F 1/1335 (2006.01); H01L 25/075 (2006.01); H01L 33/00 (2010.01); H01L 33/52 (2010.01); H01L 33/54 (2010.01); H01L 33/60 (2010.01)
CPC G02F 1/133605 (2013.01) [G02F 1/133603 (2013.01); H01L 25/0753 (2013.01); H01L 33/52 (2013.01); H01L 33/60 (2013.01); H01L 2933/0058 (2013.01)] 16 Claims
OG exemplary drawing
 
1. Alighting device, comprising:
a substrate that has a first principal face;
a first conductive portion that is provided on the first principal face of the substrate;
a second conductive portion that is provided on the first principal face of the substrate and that is disposed with a spacing as to the first conductive portion;
a first reflective layer that is provided on the first principal face of the substrate and that has
a first opening coinciding with the first conductive portion, and
a second opening coinciding with the second conductive portion;
a light-emitting part that is attached on the first principal face of the substrate and that is connected to the first conductive portion through the first opening;
a non-light-emitting part that is attached on the first principal face of the substrate and that is connected to the second conductive portion through the second opening; and
a second reflective layer that is provided on the first reflective layer, wherein
the second reflective layer includes a first reflective portion disposed around the light-emitting part, and a second reflective portion disposed around the non-light-emitting part.