公开(公告)号：US09515239B2

公开(公告)日：2016-12-06

申请号：US14618591

申请日：2015-02-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yasuhisa Inada ,  Taku Hirasawa ,  Yoshitaka Nakamura ,  Akira Hashiya ,  Mitsuru Nitta ,  Takeyuki Yamaki

IPC: H01L33/00 ,  H01L33/58 ,  H01L33/50 ,  H01L27/118 ,  H01L31/0232 ,  H01L31/12

CPC classification number: H01L33/58 ,  H01L31/02322 ,  H01L31/12 ,  H01L31/125 ,  H01L33/00 ,  H01L33/505 ,  H01L2027/11853

Abstract: A light-emitting device includes a photoluminescent layer that emits light containing first light, and a light-transmissive layer located on or near the photoluminescent layer. A submicron structure is defined on at least one of the photoluminescent layer and the light-transmissive layer. The submicron structure includes at least projections or recesses. The submicron structure has spatial frequency components distributed at least from more than 0 to 2/Dint(min) as determined by two-dimensional Fourier transform of a pattern of the projections or recesses and satisfies the following relationship: 0.8Dint(min)

公开(公告)号：US09890912B2

公开(公告)日：2018-02-13

申请号：US15214837

申请日：2016-07-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akira Hashiya ,  Taku Hirasawa ,  Yasuhisa Inada ,  Yoshitaka Nakamura ,  Mitsuru Nitta ,  Takeyuki Yamaki

IPC: H01L33/00 ,  F21K9/64 ,  F21S2/00 ,  G02B6/00 ,  G02B5/18 ,  H01L33/58 ,  H01L33/50

CPC classification number: F21K9/64 ,  F21S2/00 ,  G02B5/1809 ,  G02B5/1861 ,  G02B6/00 ,  H01L33/505 ,  H01L33/508 ,  H01L33/58

Abstract: A light-emitting apparatus includes a light-emitting device and an excitation light source. The light-emitting device includes a photoluminescent layer, a light-transmissive layer. At least one of the photoluminescent layer and the light-transmissive layer has a submicron structure having at least projections or recesses. Light emitted from the photoluminescent layer includes first light having a wavelength λa in air. The distance Dint between adjacent projections or recesses and the refractive index nwav-a of the photoluminescent layer for the first light satisfy λa/nwav-a

公开(公告)号：US09880336B2

公开(公告)日：2018-01-30

申请号：US15215595

申请日：2016-07-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yasuhisa Inada ,  Taku Hirasawa ,  Yoshitaka Nakamura ,  Akira Hashiya ,  Mitsuru Nitta ,  Takeyuki Yamaki

IPC: F21V8/00 ,  F21S2/00 ,  G02B5/18 ,  G02B6/00 ,  H01L33/50 ,  H01L27/15 ,  H01L33/46 ,  H01L33/22

CPC classification number: G02B6/0003 ,  F21S2/00 ,  G02B5/18 ,  G02B6/00 ,  G02B6/0038 ,  G02B6/0055 ,  H01L27/156 ,  H01L33/22 ,  H01L33/46 ,  H01L33/50

Abstract: A light-emitting device includes a photoluminescent layer, a light-transmissive layer located on the photoluminescent layer, and a multilayer mirror layered together with the photoluminescent layer and the light-transmissive layer. At least one of the photoluminescent layer and the light-transmissive layer has a submicron structure. The submicron structure has at least projections or recesses arranged perpendicular to the thickness direction of the photoluminescent layer. The photoluminescent layer emits light including first light having a wavelength λa in air. The distance Dint between adjacent projections or recesses and the refractive index nwav-a of the photoluminescent layer for the first light satisfy λa/nwav-a

公开(公告)号：US09518215B2

公开(公告)日：2016-12-13

申请号：US14618254

申请日：2015-02-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Taku Hirasawa ,  Yasuhisa Inada ,  Yoshitaka Nakamura ,  Akira Hashiya ,  Mitsuru Nitta ,  Takeyuki Yamaki

IPC: H01L33/00 ,  C09K11/00 ,  H05B33/14 ,  H01L33/50 ,  C09K11/77

CPC classification number: C09K11/00 ,  C09K11/7721 ,  H01L33/508 ,  H05B33/14

Abstract: A light-emitting device includes a photoluminescent layer that emits light containing first light, a light-transmissive layer located on or near the photoluminescent layer, and one or more reflectors. A submicron structure is defined on at least one of the photoluminescent layer and the light-transmissive layer. The one or more reflector are located outside the submicron structure. The submicron structure includes at least projections or recesses and satisfies the following relationship: λa/nwav-a

公开(公告)号：US10012780B2

公开(公告)日：2018-07-03

申请号：US15215592

申请日：2016-07-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yasuhisa Inada ,  Taku Hirasawa ,  Mitsuru Nitta ,  Akira Hashiya ,  Takeyuki Yamaki

IPC: F21V8/00 ,  G03B21/20 ,  H01L33/58 ,  H01L33/50

CPC classification number: G02B6/0003 ,  G02B6/00 ,  G02B6/0035 ,  G02B6/0036 ,  G02B6/0038 ,  G02B6/0053 ,  G02B6/0058 ,  G02B6/0076 ,  G02B6/0083 ,  G02B6/0085 ,  G03B21/204 ,  H01L33/505 ,  H01L33/58

Abstract: A light-emitting device includes a photoluminescent layer and a light-transmissive layer located on the photoluminescent layer. At least one of the photoluminescent layer and the light-transmissive layer has a submicron structure having at least projections or recesses arranged perpendicular to the thickness direction of the photoluminescent layer. At least one of the photoluminescent layer and the light-transmissive layer has a light emitting surface. The first light has a wavelength λa in air. A distance Dint between adjacent projections or recesses and a refractive index nwav-a of the photoluminescent layer for the first light satisfy λa/nwav-a

公开(公告)号：US09618697B2

公开(公告)日：2017-04-11

申请号：US14621729

申请日：2015-02-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yasuhisa Inada ,  Taku Hirasawa ,  Yoshitaka Nakamura ,  Akira Hashiya ,  Mitsuru Nitta ,  Takeyuki Yamaki

IPC: H01L33/00 ,  G02B6/122 ,  G02B6/124

CPC classification number: G02B6/1225 ,  G02B6/124 ,  H01L2933/0083

Abstract: A light-emitting device includes a photoluminescent layer that emits light containing first light, a light-transmissive layer located on or near the photoluminescent layer, a low-refractive-index layer and a high-refractive-index layer. A submicron structure is defined on the photoluminescent layer and/or the light-transmissive layer. The low-refractive-index layer is located on or near the photoluminescent layer so that the photoluminescent layer is located between the low-refractive-index layer and light-transmissive layer. The high-refractive-index layer is located on or near the low-refractive-index layer so that the low-refractive-index layer is located between the high-refractive-index layer and the photoluminescent layer. The submicron structure includes at least projections or recesses and satisfies the following relationship: λa/nwav-a

公开(公告)号：US10031276B2

公开(公告)日：2018-07-24

申请号：US15060564

申请日：2016-03-03

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Taku Hirasawa ,  Yasuhisa Inada ,  Akira Hashiya ,  Mitsuru Nitta ,  Takeyuki Yamaki

IPC: H01L33/58 ,  H01L33/50 ,  F21V8/00

Abstract: A display apparatus includes an excitation light source that outputs excitation light; a light-emitting device including a photoluminescent layer that receives the excitation light and emits light including first light having a wavelength λa in air, and a light-transmissive layer located on or near the photoluminescent layer; and an optical shutter on an optical path of the light emitted from the photoluminescent layer. A surface structure is defined on at least one of the photoluminescent layer and the light-transmissive layer, and the surface structure has projections or recesses or both and limits a directional angle of the first light having the wavelength λa in air.