公开(公告)号：US20210405451A1

公开(公告)日：2021-12-30

申请号：US17304840

申请日：2021-06-25

Applicant: NICHIA CORPORATION ,  KEIWA Inc.

Inventor： Ryohei YAMASHITA ,  Yusaku ACHI ,  Chengheng TSAI

IPC: G02F1/13357 ,  F21V8/00

Abstract: A display device includes a light-emitting module and a light-diffusing sheet stacked body. The light-emitting module includes at least one light guide plate including an upper surface and a lower surface, and light sources disposed at the lower surface side of the light guide plate. The light-diffusing sheet stacked body includes a first light-diffusing sheet disposed on the light guide plate, a second light-diffusing sheet disposed on the first light-diffusing sheet, and a third light-diffusing sheet disposed on the second light-diffusing sheet. The first light-diffusing sheet includes first protrusions at an upper surface side thereof. The second light-diffusing sheet includes second protrusions at an upper surface side thereof. The third light-diffusing sheet includes third protrusions at an upper surface side thereof. A shape of the third protrusion may be different from a shape of the first protrusions and/or a shape of the second protrusions.

公开(公告)号：US20200041836A1

公开(公告)日：2020-02-06

申请号：US16528955

申请日：2019-08-01

Applicant: NICHIA CORPORATION

Inventor： Mamoru IMADA ,  Toshiaki MORIWAKI ,  Yusaku ACHI ,  Ryohei YAMASHITA

IPC: G02F1/1335 ,  H01L33/50

Abstract: A light emitting module includes: a plurality of light emitting elements each having a primary light emitting surface; a plurality of wavelength conversion members arranged respectively on the primary light emitting surfaces of the plurality of light emitting elements; a resin member arranged between the plurality of wavelength conversion members and covering lateral surfaces of the plurality of wavelength conversion members; and a lightguide plate having a first primary surface and a second primary surface, and arranged on the resin member and the plurality of wavelength conversion members so that the second primary surface faces the resin member and the plurality of wavelength conversion members, wherein the lightguide plate includes a plurality of recessed portions on the second primary surface that are located over the plurality of wavelength conversion members.

公开(公告)号：US20140017829A1

公开(公告)日：2014-01-16

申请号：US14025684

申请日：2013-09-12

Applicant: NICHIA CORPORATION

Inventor： Tomohide MIKI ,  Kenji TAKINE ,  Ryohei YAMASHITA

IPC: H01L33/54

CPC classification number: H01L33/507 ,  H01L25/0753 ,  H01L33/505 ,  H01L33/508 ,  H01L33/54 ,  H01L33/62 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2924/00014 ,  H01L2924/00

Abstract: The light emitting device comprises a substrate (2), a positive electrode (6) and a negative electrode (4) formed on the substrate (2), a light emitting diode (8) connected to the positive electrode (6) and the negative electrode (4), the transparent resin (12 and 14) that covers the light emitting diode (8), a fluorescent material (16) that absorbs at least part of light emitted by the light emitting diode (8) and converts it to light of longer wavelength, and the lens that changes the direction of light emission from the light emitting diode (8) and/or the fluorescent material (16). The resin (12 and 14) includes the fluorescent material (16) and is formed so as to constitute the lens of substantially semi-cylindrical shape, and the fluorescent material (16) included in the resin (12 and 14) is distributed with a higher concentration in a region near the surface of the light emitting diode (8) than in a region near the surface of the portion that constitutes the lens.

Abstract translation: 发光装置包括：基板（2），形成在基板（2）上的正极（6）和负极（4）;与正极（6）连接的发光二极管（8） 电极（4），覆盖发光二极管（8）的透明树脂（12和14），吸收由发光二极管（8）发射的光的至少一部分并将其转换为光的荧光材料（16） 以及改变来自发光二极管（8）和/或荧光材料（16）的发光方向的透镜。 树脂（12和14）包括荧光材料（16）并且形成为构成大致半圆柱形状的透镜，并且包含在树脂（12和14）中的荧光材料（16）分布在 在发光二极管（8）的表面附近的区域中比在构成透镜的部分的表面附近的区域更高的浓度。

公开(公告)号：US20240069270A1

公开(公告)日：2024-02-29

申请号：US18456271

申请日：2023-08-25

Applicant: NICHIA CORPORATION

Inventor： Yukihiro MIURA ,  Ryohei YAMASHITA

IPC: F21V8/00

CPC classification number: G02B6/0091 ,  G02B6/0013

Abstract: A planar light source includes a first substrate including a first part and a second part; a light source located at an upper surface side of the first part; a light guide member located at the upper surface side of the first part; and a circuit member overlapping the light guide member in a direction parallel to an upper surface of the first part. The circuit member includes a second substrate located at an upper surface side or a lower surface side of the second part, and an electronic element located on the second substrate.

公开(公告)号：US20210063818A1

公开(公告)日：2021-03-04

申请号：US17005297

申请日：2020-08-27

Applicant: NICHIA CORPORATION

Inventor： Ryohei YAMASHITA ,  TOSHINOBU KATSUMATA

IPC: G02F1/13357 ,  H01L33/50 ,  H01L33/60 ,  H01L33/62 ,  F21V8/00

Abstract: A light-emitting module includes a light-guiding plate having an upper surface with a first hole and having a rectangular shape in a top view, and a light-emitting element opposite to the first hole and disposed opposite to the upper surface. The first hole includes a first portion and a second portion between the first portion and the upper surface. The first portion is provided with a first opening at a boundary between the first portion and the second portion and a first lateral surface inclined with respect to the upper surface. A shape of the first opening in the top view is defined by a first axis parallel to a short side of the rectangular shape of the light-guiding plate and a second axis parallel to a long side of the rectangular shape and shorter than the first axis in a plan view.

公开(公告)号：US20200209461A1

公开(公告)日：2020-07-02

申请号：US16726300

申请日：2019-12-24

Applicant: NICHIA CORPORATION

Inventor： Yusaku ACHI ,  Toshiaki MORIWAKI ,  Ryohei YAMASHITA

IPC: F21V8/00

Abstract: A light-emitting module includes: a light guide plate having a first surface on which a plurality of first recesses arranged in rows and columns and a grid-shaped groove portion surrounding each of the plurality of first recesses are provided, and a second surface located on the opposite side from the first surface; a plurality of light-emitting elements each disposed inside a corresponding one of the plurality of first recesses; a first light transmission member disposed inside the groove portion of the light guide plate, and having a refractive index lower than a refractive index of the light guide plate; and a reflective resin layer covering the first surface of the light guide plate and the first light transmission member.

公开(公告)号：US20180341152A1

公开(公告)日：2018-11-29

申请号：US15986738

申请日：2018-05-22

Applicant: NICHIA CORPORATION

Inventor： Ryohei YAMASHITA ,  Shimpei SASAOKA ,  Toshiyuki HASHIMOTO

IPC: G02F1/1335 ,  H01L25/075 ,  H01L33/50 ,  H01L33/60 ,  H01L33/62

CPC classification number: G02F1/133611 ,  G02F1/133603 ,  G02F1/133605 ,  G02F1/133606 ,  G02F2001/133607 ,  H01L25/0753 ,  H01L33/502 ,  H01L33/60 ,  H01L33/62

Abstract: A light-emitting device includes: a base having an upper surface; a plurality of light sources located on the upper surface of the base; a first lenticular lens sheet disposed to face the base with the light sources between the first lenticular lens sheet and the base, the first lenticular lens sheet including a first plurality of grooves; a half mirror located on an upper surface side of the first lenticular lens sheet; and a second lenticular lens sheet disposed on an upper surface side of the half mirror, wherein the second lenticular lens sheet includes a second plurality of grooves extending in a direction that intersects a direction in which the first plurality of grooves of the first lenticular lens sheet extend.

公开(公告)号：US20150318458A1

公开(公告)日：2015-11-05

申请号：US14799597

申请日：2015-07-15

Applicant: NICHIA CORPORATION

Inventor： Ryohei YAMASHITA ,  Ryoichi YOSHIMOTO

IPC: H01L33/62 ,  H01L33/48 ,  H01L33/54

CPC classification number: H01L33/62 ,  H01L23/495 ,  H01L23/49517 ,  H01L23/49541 ,  H01L23/49548 ,  H01L23/49562 ,  H01L24/29 ,  H01L24/32 ,  H01L24/45 ,  H01L24/48 ,  H01L24/73 ,  H01L24/97 ,  H01L33/483 ,  H01L33/486 ,  H01L33/52 ,  H01L33/54 ,  H01L2224/2919 ,  H01L2224/2929 ,  H01L2224/29301 ,  H01L2224/29339 ,  H01L2224/29344 ,  H01L2224/29364 ,  H01L2224/32245 ,  H01L2224/45015 ,  H01L2224/45124 ,  H01L2224/45139 ,  H01L2224/45144 ,  H01L2224/45147 ,  H01L2224/45169 ,  H01L2224/45173 ,  H01L2224/45184 ,  H01L2224/45565 ,  H01L2224/45624 ,  H01L2224/45639 ,  H01L2224/45644 ,  H01L2224/45647 ,  H01L2224/45655 ,  H01L2224/45657 ,  H01L2224/4566 ,  H01L2224/45673 ,  H01L2224/4568 ,  H01L2224/45684 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/73265 ,  H01L2224/97 ,  H01L2924/0132 ,  H01L2924/07802 ,  H01L2924/0781 ,  H01L2924/12035 ,  H01L2924/12041 ,  H01L2924/12042 ,  H01L2924/181 ,  H01L2924/18301 ,  H01L2933/0033 ,  H01L2933/0066 ,  H01L2924/00014 ,  H01L2924/0665 ,  H01L2924/0715 ,  H01L2924/07025 ,  H01L2924/095 ,  H01L2924/0105 ,  H01L2924/01083 ,  H01L2924/01047 ,  H01L2924/01079 ,  H01L2924/00012 ,  H01L2924/00 ,  H01L2924/20752

Abstract: A light emitting device mount includes a positive lead terminal, a negative lead terminal, and a resin portion. Each of the positive lead terminal and the negative lead terminal includes a first main surface, a second main surface opposite to the first main surface in a thickness direction of each of the positive lead terminal and the negative lead terminal, and an end surface which is provided between the first main surface and the second main surface and which includes a first recessed surface area and a second recessed surface area. The first recessed surface area extends from the first main surface. The second recessed surface area extends from the second main surface, includes a closest point closest to the first main surface, and includes an extension part that extends outward of the closest point and toward the second main surface.

Abstract translation: 发光装置支架包括正引线端子，负引线端子和树脂部分。 正极引线端子和负极引线端子中的每一个包括第一主表面，与正极引线端子和负极引线端子的厚度方向上的第一主表面相对的第二主表面，以及端部表面 设置在第一主表面和第二主表面之间，并且包括第一凹入表面区域和第二凹入表面区域。 第一凹入表面区域从第一主表面延伸。 所述第二凹面表面区域从所述第二主表面延伸，包括最靠近所述第一主表面的最近点，并且包括延伸部分，所述延伸部分从所述最近点向外延伸并朝向所述第二主表面。

公开(公告)号：US20230085463A1

公开(公告)日：2023-03-16

申请号：US18047041

申请日：2022-10-17

Applicant: NICHIA CORPORATION

Inventor： Takuya NAKABAYASHI ,  Ryohei YAMASHITA ,  Keiji EMURA ,  Tsuyoshi OKAHISA ,  Toshinobu KATSUMATA

IPC: G02F1/13357 ,  G02F1/1335

Abstract: A light-emitting device includes a wiring board, a plurality of light-emitting elements disposed on the wiring board, a light-reflecting member covering a lateral surface of each of the plurality of light-emitting elements, a plurality of light-transmitting layers each located above an emission surface of a corresponding one of the plurality of light-emitting elements, a plurality of light-reflecting layers disposed on the plurality of light-transmitting layers, respectively, a light-diffusing layer disposed above the plurality of light-reflecting layers and the light-reflecting member, and a low-refractive-index layer located between the light-reflecting member and the light-diffusing layer, around each pair of one of the plurality of light-transmitting layers and one of the light-reflecting layers, and having a refractive index lower than that of the plurality of light-transmitting layers. Each of the plurality of light-reflecting layer has a width in a cross-sectional view thereof which is equal to or greater than that of a corresponding one of the plurality of light-transmitting layers.

公开(公告)号：US20200044121A1

公开(公告)日：2020-02-06

申请号：US16529005

申请日：2019-08-01

Applicant: NICHIA CORPORATION

Inventor： Mamoru IMADA ,  Toshiaki MORIWAKI ,  Yusaku ACHI ,  Ryohei YAMASHITA

IPC: H01L33/50 ,  H01L33/10 ,  H01L33/36 ,  H01L33/54

Abstract: A light emitting module includes: a plurality of light emitting elements each having a primary light emitting surface and a lateral surface; a plurality of wavelength conversion members arranged respectively on the primary light emitting surfaces of the plurality of light emitting elements; and a lightguide plate having a first primary surface and a second primary surface and arranged continuously on the plurality of wavelength conversion members so that the second primary surface faces the plurality of wavelength conversion members, wherein the lightguide plate includes a plurality of recessed portions located on the second primary surface, and a lateral surface of at least one of the plurality of wavelength conversion members is partially in contact with an inner lateral surface of at least one of the plurality of recessed portions.