公开(公告)号：US20250164836A1

公开(公告)日：2025-05-22

申请号：US19031328

申请日：2025-01-17

Applicant: NICHIA CORPORATION

Inventor： Koki SHIBAI ,  Yoshihiro SHO ,  Motokazu YAMADA ,  Naoya KASHIWAGI ,  Shimpei SASAOKA

IPC: G02F1/13357 ,  F21V7/00

Abstract: A planar light source includes a substrate, a plurality of light sources arranged on the substrate, and at least one partitioning member disposed on the substrate. The at least one partitioning member includes: a plurality of first ridges extending in a first direction; a plurality of first wall parts, each first wall part having a predetermined height, at least two sides of each first wall part facing each other; a plurality of partitioned regions, each partitioned region being partitioned by the plurality of first ridges in a plan view, the plurality of partitioned regions arranged in a second direction intersecting the first direction; at least one first cut provided on a corresponding one of the plurality of first ridges; and at least one of the light sources arranged in a corresponding one of the plurality of partitioned regions.

公开(公告)号：US20250044638A1

公开(公告)日：2025-02-06

申请号：US18919706

申请日：2024-10-18

Applicant: NICHIA CORPORATION

Inventor： Koki SHIBAI ,  Naoya KASHIWAGI ,  Shimpei SASAOKA

IPC: G02F1/13357

Abstract: A planar light source has a plurality of light sources, a substrate, and a partitioning member. The partitioning member includes a first member provided with first partitioned parts each having a first bottom part and first oblique parts surrounding the first bottom part that are arranged on the substrate in a matrix, and a second member provided with second partitioned parts each having a second bottom part and second oblique parts surrounding the second bottom part that are arranged on the substrate in a matrix. The first member further has first outer oblique parts overlapping the second oblique parts located along the outer edge of the second member on the first member side. The first bottom parts and the second bottom parts each have a light source disposition opening, and the light sources are individually disposed on the substrate exposed in the light source disposition openings.

公开(公告)号：US20220404671A1

公开(公告)日：2022-12-22

申请号：US17837984

申请日：2022-06-10

Applicant: NICHIA CORPORATION

Inventor： Koki SHIBAI ,  Yoshihiro SHO ,  Motokazu YAMADA ,  Naoya KASHIWAGI ,  Shimpei SASAOKA

IPC: G02F1/13357

Abstract: A planar light source includes a substrate, light sources, and a partitioning member. The partitioning member defines partitioned regions arranged in a first direction and in a second direction that intersects the first direction. At least one of the light sources is arranged in a corresponding one of the partitioned regions. The partitioning member includes a plurality of first wall parts defining a plurality of first ridges extending in the first direction, and a plurality of second wall parts defining a plurality of second ridges extending in the second direction. The first wall parts define at least one first cut on at least one of the first ridges. At least one of the partitioned regions is surrounded by the first ridges and the second ridges in a plan view and includes an opposing pair of the first wall parts and an opposing pair of the second wall parts.

公开(公告)号：US20240118572A1

公开(公告)日：2024-04-11

申请号：US18536090

申请日：2023-12-11

Applicant: NICHIA CORPORATION

Inventor： Koki SHIBAI ,  Yoshihiro SHO ,  Motokazu YAMADA ,  Naoya KASHIWAGI ,  Shimpei SASAOKA

IPC: G02F1/13357

CPC classification number: G02F1/133605 ,  G02F1/133603 ,  F21V7/0083

Abstract: A planar light source includes a substrate, light sources, and at least one partitioning member. The partitioning member includes first wall parts, second wall parts, and partitioned regions. The first wall parts define first ridges extending in a first direction. The second wall parts define second ridges extending in a second direction. The partitioned regions each is surrounded by the first ridges and the second ridges in a plan view. the partitioned regions are arranged in the first and second directions. At least one first cut is defined on at least one of the first ridges. At least one second cut is defined on at least one of the second ridges. The at least one first cut and the at least one second cut are spaced apart from each other. At least one of the light sources is arranged in a corresponding one of the partitioned regions.

公开(公告)号：US20210098664A1

公开(公告)日：2021-04-01

申请号：US17033400

申请日：2020-09-25

Applicant: NICHIA CORPORATION

Inventor： Shimpei BANDO ,  Koki SHIBAI

IPC: H01L33/56 ,  H01L33/10 ,  H01L27/15

Abstract: A light emitting device includes a substrate, a plurality of light sources, a light reflecting member and a resin member. The substrate defines a through hole. The light reflecting member includes a wall part having a first surface and a second surface. The first surface defines a plurality of surrounding parts respectively surrounding each of the light sources individually or two or more of the light sources in groups. The second surface defines a hollow part. The resin member is disposed inside the hollow part. The hollow part defines a first opening on a substrate side of the wall part. The through hole defines a second opening positioned inner than the first opening. The resin member is continuously in contact with the second surface and the upper surface of the substrate in a region between a peripheral edge of the second opening and a peripheral edge of the first opening.

公开(公告)号：US20230314873A1

公开(公告)日：2023-10-05

申请号：US18192583

申请日：2023-03-29

Applicant: NICHIA CORPORATION

Inventor： Koki SHIBAI ,  Naoya KASHIWAGI ,  Shimpei SASAOKA

IPC: G02F1/13357

CPC classification number: G02F1/133603

Abstract: A planar light source has a plurality of light sources, a substrate, and a partitioning member. The partitioning member includes a first member provided with first partitioned parts each having a first bottom part and first oblique parts surrounding the first bottom part that are arranged on the substrate in a matrix, and a second member provided with second partitioned parts each having a second bottom part and second oblique parts surrounding the second bottom part that are arranged on the substrate in a matrix. The first member further has first outer oblique parts overlapping the second oblique parts located along the outer edge of the second member on the first member side. The first bottom parts and the second bottom parts each have a light source disposition opening, and the light sources are individually disposed on the substrate exposed in the light source disposition openings.

公开(公告)号：US20230012552A1

公开(公告)日：2023-01-19

申请号：US17876521

申请日：2022-07-28

Applicant: NICHIA CORPORATION

Inventor： Shimpei BANDO ,  Koki SHIBAI

IPC: H01L27/15 ,  H01L33/56 ,  H01L25/075 ,  H01L33/60

Abstract: A light emitting device includes a substrate, a plurality of light sources disposed on the substrate, and a plurality of light reflecting members disposed on the substrate. The light reflecting members respectively include wall parts each surrounding each of the light sources individually or two or more of the light sources in groups. Two adjacent ones of the light reflecting members are joined to each other such that outer surfaces of the wall parts of the two adjacent ones of the light reflecting members are bonded to each other via an adhesive agent.

公开(公告)号：US20220350203A1

公开(公告)日：2022-11-03

申请号：US17660827

申请日：2022-04-26

Applicant: NICHIA CORPORATION

Inventor： Koki SHIBAI ,  Shimpei SASAOKA ,  Yoshihiro SHO ,  Naoya KASHIWAGI

IPC: G02F1/13357

Abstract: A surface light source includes a plurality of light sources, a substrate, a first member disposed on the substrate and including a plurality of recessed first demarcating portions each including a first inclined portion and a first bottom portion and one or more recessed second demarcating portions each including a second inclined portion and a first opening, and a second member overlying a portion of the first member and including a third inclined portion overlapping with the second inclined portion, a fourth inclined portion adjacent to the third inclined portion and not overlapping with the second inclined portion, a second bottom portion located inside the first opening, and a third bottom portion continuous with a lower end of the fourth inclined portion, and the plurality of light sources being respectively disposed on the substrate exposed in the first bottom portion, the second bottom portion, and the third bottom portion.