公开(公告)号：US20230352635A1

公开(公告)日：2023-11-02

申请号：US18306566

申请日：2023-04-25

Applicant: NICHIA CORPORATION

Inventor： Tatsuya HAYASHI ,  Shinya OKURA ,  Yusuke HAYASHI

IPC: H01L33/50 ,  H01L33/62 ,  H01L33/60

CPC classification number: H01L33/502 ,  H01L33/505 ,  H01L33/62 ,  H01L33/60 ,  H01L2933/0041 ,  H01L2933/0058

Abstract: A light-emitting device includes a light-emitting element, a wavelength conversion member, and a light adjustment member. The light-emitting element includes a support substrate, and a first light-emitting portion and a second light-emitting portion disposed adjacent to each other. The wavelength conversion member is configured to perform wavelength conversion of first light emitted from the first light-emitting portion and second light emitted from the second light-emitting portion into third light. The light adjustment member overlaps one of the first light-emitting portion and the second light-emitting portion in a plan view. In the light-emitting element, an emission intensity of the first light at a light emission peak wavelength of the second light is lower than an emission intensity of the second light at the light emission peak wavelength of the second light, during light emission of the light-emitting device.

公开(公告)号：US20240363812A1

公开(公告)日：2024-10-31

申请号：US18637232

申请日：2024-04-16

Applicant: NICHIA CORPORATION

Inventor： Tatsuya HAYASHI ,  Shinya OKURA

IPC: H01L33/50 ,  H01L25/075 ,  H01L33/52 ,  H01L33/62

CPC classification number: H01L33/504 ,  H01L25/0753 ,  H01L33/52 ,  H01L33/62

Abstract: A light-emitting device includes a light-emitting element, a wavelength conversion layer, and a light-transmissive layer. The light-emitting element has a light exit surface. The wavelength conversion layer has a lower surface and an upper surface. The wavelength conversion layer is disposed on or above the light-emitting element so that the lower surface of the wavelength conversion layer faces the light exit surface of the light-emitting element. The wavelength conversion layer includes a first layer and a second layer. The first layer contains a first phosphor particle, and constitutes a part of the upper surface and a part of the lower surface of the wavelength conversion layer. The second layer contains a second phosphor particle and a light-reflective particle, and constitutes a part of the upper surface and a part of the lower surface of the wavelength conversion layer. The light-transmissive layer is disposed on or above the wavelength conversion layer.

公开(公告)号：US20240027034A1

公开(公告)日：2024-01-25

申请号：US18352571

申请日：2023-07-14

Applicant: NICHIA CORPORATION

Inventor： Satoshi SHICHIJO ,  Tatsuya HAYASHI ,  Yusuke HAYASHI ,  Masahiro OKAZAKI

IPC: F21K9/64 ,  F21S41/176 ,  F21K9/68

CPC classification number: F21K9/64 ,  F21S41/176 ,  F21K9/68 ,  F21Y2115/10

Abstract: A light-emitting device includes a light-emitting element, a light-transmissive member, and a light adjustment member. The light adjustment member exposes a first upper surface and covers a second upper surface and a first lateral surface of the light-transmissive member. The light-transmissive member has a thickness from a lower surface to the first upper surface larger than a thickness from the lower surface to the second upper surface. In a plan view, first and second light-emitting regions have the first and second upper surfaces of the light-transmissive member, respectively, and an area of the second light-emitting region is in a range from 35% to 95% of an area of a light-emitting region. A boundary between the first and second light-emitting regions includes first and second points on a perimeter of a light-emitting region, and a straight line connecting the first and second points extends across the light-emitting region.

公开(公告)号：US20240247769A1

公开(公告)日：2024-07-25

申请号：US18625067

申请日：2024-04-02

Applicant: NICHIA CORPORATION

Inventor： Satoshi SHICHIJO ,  Tatsuya HAYASHI ,  Yusuke HAYASHI ,  Masahiro OKAZAKI

IPC: F21K9/64 ,  F21K9/68 ,  F21S41/176 ,  F21Y115/10

CPC classification number: F21K9/64 ,  F21K9/68 ,  F21S41/176 ,  F21Y2115/10

Abstract: A light-emitting device includes a light-emitting element, a light-transmissive member, and a first light adjustment member. The light-transmissive member has a first upper surface, a second upper surface, a lower surface facing a first surface of a support substrate of the light-emitting element, a first lateral surface contiguous with the first upper surface and the second upper surface, a second lateral surface contiguous with the second upper surface and the lower surface, and a third lateral surface contiguous with the first upper surface and the lower surface. The first light adjustment member exposes the first upper surface of the light-transmissive member and covers the second upper surface and the first lateral surface of the light-transmissive member. The light-transmissive member and the first light adjustment member collectively define a rectangular cross-sectional shape.

公开(公告)号：US20240102624A1

公开(公告)日：2024-03-28

申请号：US18534571

申请日：2023-12-09

Applicant: NICHIA CORPORATION

Inventor： Tatsuya HAYASHI ,  Shinya OKURA

IPC: F21S41/176 ,  F21S41/141

CPC classification number: F21S41/176 ,  F21S41/141

Abstract: A light-emitting device includes a substrate, a light-emitting element, a wavelength conversion layer, a light adjustment member, a light-transmissive member, and a covering member. The light-emitting element includes first and second light-emitting portions. The wavelength conversion layer contains a first phosphor that performs wavelength conversion of first light emitted from the first light-emitting portion and second light emitted from the second light-emitting portion into third light. The light adjustment member is disposed partially over the wavelength conversion layer and overlaps one of the first light-emitting portion and the second light-emitting portion in plan view. The light-transmissive member is disposed over the wavelength conversion layer and the light adjustment member. The covering member covers a side surface of the light-emitting element, a side surface of the wavelength conversion layer, a side surface of the light adjustment member, and a side surface of the light-transmissive member.

公开(公告)号：US20230349525A1

公开(公告)日：2023-11-02

申请号：US18306626

申请日：2023-04-25

Applicant: NICHIA CORPORATION

Inventor： Tatsuya HAYASHI ,  Shinya OKURA

IPC: F21S41/176 ,  F21S41/141

CPC classification number: F21S41/176 ,  F21S41/141

Abstract: A light-emitting device includes a light-emitting element, the wavelength conversion member, and a light adjustment member. The light-emitting element includes a support substrate, and a first light-emitting portion and a second light-emitting portion disposed adj acent to each other. The wavelength conversion member is configured to perform wavelength conversion of first light emitted from the first light-emitting portion and second light emitted from the second light-emitting portion into third light. The light adjustment member overlaps one of the first light-emitting portion and the second light-emitting portion in a plan view. In the light-emitting element, an emission intensity of the first light at a light emission peak wavelength of the second light is lower than an emission intensity of the second light at the light emission peak wavelength of the second light, during light emission of the light-emitting device.

公开(公告)号：US20160247978A1

公开(公告)日：2016-08-25

申请号：US15050713

申请日：2016-02-23

Applicant: NICHIA CORPORATION

Inventor： Masashi ISHIDA ,  Yoshiyuki IDE ,  Tatsuya HAYASHI ,  Tadayuki KITAJIMA ,  Takeshi AKI

IPC: H01L33/48 ,  H05K1/11 ,  H01L33/62

CPC classification number: H01L33/486 ,  H01L23/49838 ,  H01L33/62 ,  H01L2224/48227 ,  H01L2224/73204 ,  H01L2224/83192 ,  H01L2924/12041 ,  H05K1/111 ,  H05K1/115 ,  H05K3/3431 ,  H05K2201/09663 ,  H05K2201/0969 ,  H05K2201/10106 ,  Y02P70/611

Abstract: A mounting substrate includes: a base; and at least one pair of wiring patterns disposed apart from each other on the base. At least one of the wiring patterns has a mounting portion, which is configured to support an electronic part thereon and which is rectangular in a plan view. The at least one of the wiring patterns defines a hole, which exposes a part of the base and which is disposed in at least a part of an outer edge of the mounting portion.

Abstract translation: 安装基板包括：基座; 以及在基座上彼此分开布置的至少一对布线图案。 布线图案中的至少一个具有安装部，其被构造成在其上支撑电子部件，并且在俯视图中为矩形。 所述布线图案中的至少一个限定了孔，所述孔露出所述基部的一部分并且设置在所述安装部的外边缘的至少一部分中。