公开(公告)号：US20160225963A1

公开(公告)日：2016-08-04

申请号：US15005274

申请日：2016-01-25

申请人： Sharp Kabushiki Kaisha ,  National Institute for Materials Science

发明人： Kenichi Yoshimura ,  Makoto Izumi ,  Masamichi Harada ,  Hiroshi Fukunaga ,  Kazunori Annen ,  Naoto Hirosaki ,  Hiroyo Segawa

IPC分类号： H01L33/50 ,  C09K11/77 ,  C03B19/12

CPC分类号： H01L33/504 ,  C03B19/12 ,  C03C14/006 ,  C03C2214/16 ,  C09K11/7734 ,  H01L33/507 ,  H01L2933/0041

摘要： A wavelength converting member includes silica glass and a plurality of fluorescent material particles including an oxynitride or nitride fluorescent material and dispersed in the silica glass. The plurality of fluorescent material particles include at least two kinds of fluorescent material particles including (i) first fluorescent material particles that emit a fluorescence having a first peak wavelength and (ii) second fluorescent material particles that emit a fluorescence having a second peak wavelength. The wavelength converting member has a density within a range from 0.8 g/cm3 to 1.2 g/cm3.

摘要翻译： 波长转换部件包括二氧化硅玻璃和多个包含氮氧化物或氮化物荧光材料并分散在二氧化硅玻璃中的荧光材料颗粒。 多个荧光材料粒子包括至少两种荧光材料颗粒，其包括（i）发射具有第一峰值波长的荧光的第一荧光材料颗粒和（ii）发射具有第二峰值波长的荧光的第二荧光材料颗粒。 波长转换构件的密度在0.8g / cm 3至1.2g / cm 3的范围内。

公开(公告)号：US10381529B2

公开(公告)日：2019-08-13

申请号：US15447225

申请日：2017-03-02

申请人： Sharp Kabushiki Kaisha ,  National Institute for Materials Science

发明人： Kenichi Yoshimura ,  Makoto Izumi ,  Hiroshi Fukunaga ,  Naoto Hirosaki

IPC分类号： H01L33/50 ,  C09K11/08 ,  C09K11/61 ,  C09K11/64 ,  H01L27/15

摘要： A light-emitting device includes a light-emitting element that emits blue light, a Mn2+-activated γ-AlON green phosphor, and a dispersing material in which the green phosphor is dispersed. The green phosphor has an in-crystal Mn concentration of 2.5 wt % or more. The shortest path of the blue light through the dispersing material is 1 mm long or shorter.

公开(公告)号：US10381528B2

公开(公告)日：2019-08-13

申请号：US15236588

申请日：2016-08-15

申请人： Sharp Kabushiki Kaisha ,  National Institute for Materials Science

发明人： Kenichi Yoshimura ,  Shigetoshi Ito ,  Makoto Izumi ,  Masamichi Harada ,  Hiroshi Fukunaga ,  Naoto Hirosaki

IPC分类号： H01L33/50 ,  C09K11/00 ,  C09K11/08 ,  C09K11/57 ,  C09K11/61 ,  G02F1/1335 ,  G02F1/1337

摘要： The present invention provides a light emitting device that makes it possible to provide an image display apparatus having a wide color reproduction range. The light emitting device includes a light emitting element that emits blue light; a Mn2+-activated γ-AlON phosphor that is a green phosphor; and a Mn4+-activated phosphor that is a red phosphor. The green light emitted by the Mn2+-activated γ-AlON phosphor has an emission-spectrum peak wavelength of not less than 518 nm and not more than 528 nm.

公开(公告)号：US09741908B2

公开(公告)日：2017-08-22

申请号：US15005274

申请日：2016-01-25

申请人： Sharp Kabushiki Kaisha ,  National Institute for Materials Science

发明人： Kenichi Yoshimura ,  Makoto Izumi ,  Masamichi Harada ,  Hiroshi Fukunaga ,  Kazunori Annen ,  Naoto Hirosaki ,  Hiroyo Segawa

IPC分类号： H01L33/00 ,  H01L33/50 ,  C03B19/12 ,  C09K11/77 ,  C03C14/00

CPC分类号： H01L33/504 ,  C03B19/12 ,  C03C14/006 ,  C03C2214/16 ,  C09K11/7734 ,  H01L33/507 ,  H01L2933/0041

摘要： A wavelength converting member includes silica glass and a plurality of fluorescent material particles including an oxynitride or nitride fluorescent material and dispersed in the silica glass. The plurality of fluorescent material particles include at least two kinds of fluorescent material particles including (i) first fluorescent material particles that emit a fluorescence having a first peak wavelength and (ii) second fluorescent material particles that emit a fluorescence having a second peak wavelength. The wavelength converting member has a density within a range from 0.8 g/cm3 to 1.2 g/cm3.

公开(公告)号：US10483441B2

公开(公告)日：2019-11-19

申请号：US15981941

申请日：2018-05-17

申请人： Sharp Kabushiki Kaisha

发明人： Tatsuya Ryohwa ,  Kanako Nakata ,  Hiroshi Fukunaga ,  Makoto Izumi

IPC分类号： H01L33/50 ,  C09K11/08

摘要： A phosphor containing particle including a core portion which is a particulate matter of resin including a constitutional unit derived from an ionic liquid with a semiconductor nanoparticle phosphor dispersed therein and a shell portion which is a matter in a form of a layer of resin which includes a constitutional unit derived from an ionic liquid and coats at least a portion of the core portion, and a phosphor containing particle including a particulate matter of resin including a constitutional unit derived from an ionic liquid with a semiconductor nanoparticle phosphor dispersed therein and a metal oxide layer coating at least a portion of the particulate matter of resin. A light emitting device including a light source and a wavelength converter in which phosphor containing particles are dispersed in a translucent medium, and a phosphor containing sheet in which phosphor containing particles are dispersed in a sheet-shaped translucent medium.

公开(公告)号：US10263162B2

公开(公告)日：2019-04-16

申请号：US15874019

申请日：2018-01-18

申请人： Sharp Kabushiki Kaisha

发明人： Kenichi Yoshimura ,  Tatsuya Ryohwa ,  Makoto Izumi ,  Noriyuki Yamazumi

IPC分类号： H01L33/00 ,  H01L33/50 ,  H01L33/56 ,  F21V8/00 ,  H01L33/48 ,  H01L33/58

摘要： A light emitting device includes a light emitting element disposed on a substrate which emits blue light, a green phosphor that emits green light upon being excited by the blue light, a red phosphor that emits red light upon being excited by the blue light, and a transparent resin including the green phosphor and the red phosphor dispersed therein. The red phosphor is arranged to be in contact with the light emitting element and the substrate. The transparent resin includes a constitutional unit including an ionic liquid including a polymerizable functional group or a derivative of the ionic liquid.

公开(公告)号：US09812617B2

公开(公告)日：2017-11-07

申请号：US15156431

申请日：2016-05-17

申请人： Sharp Kabushiki Kaisha

发明人： Kenichi Yoshimura ,  Tatsuya Ryohwa ,  Makoto Izumi

IPC分类号： H01L33/00 ,  H01L33/50 ,  H01L33/56 ,  H01L33/44

CPC分类号： H01L33/504 ,  H01L33/44 ,  H01L33/501 ,  H01L33/502 ,  H01L33/507 ,  H01L33/56

摘要： A light-emitting device includes a light-emitting element configured to emit blue light, a first wavelength conversion member containing a Mn4+-activated fluorine complex phosphor, and a second wavelength conversion member containing a quantum-dot phosphor, in which the first wavelength conversion member and the second wavelength conversion member are spatially separated from each other.

公开(公告)号：US09601643B2

公开(公告)日：2017-03-21

申请号：US15165103

申请日：2016-05-26

申请人： Sharp Kabushiki Kaisha ,  The University of Tokyo

发明人： Hirofumi Yoshikawa ,  Makoto Izumi ,  Yasuhiko Arakawa

IPC分类号： H01L29/06 ,  H01L31/0352 ,  H01L31/072 ,  H01L31/055 ,  H01L31/0232 ,  H01L31/109 ,  H01L31/054

CPC分类号： H01L31/055 ,  H01L31/035218 ,  Y02E10/52

摘要： A photoelectric conversion element includes a superlattice semiconductor layer including barrier sub-layers and quantum sub-layers (quantum dot sub-layers) alternately stacked and also includes a wavelength conversion layer containing a wavelength conversion material converting the wavelength of incident light. The wavelength conversion layer converts incident light into light with a wavelength corresponding to an optical transition from a quantum level of the conduction band of the superlattice semiconductor layer to a continuum level of the conduction band.

公开(公告)号：US11289667B2

公开(公告)日：2022-03-29

申请号：US16968543

申请日：2018-02-13

申请人： SHARP KABUSHIKI KAISHA

发明人： Tadashi Kobashi ,  Yoshihiro Ueta ,  Makoto Izumi ,  Noboru Iwata

IPC分类号： H01L29/08 ,  H01L51/50 ,  H01L51/56

摘要： The light-emitting device includes, between an anode electrode and a cathode electrode, a light-emitting layer, a hole transport layer, and an electron transport layer. The light-emitting layer includes quantum dots configured to emit light as a result of combination of positive holes and electrons. The electron transport layer includes a metal oxide, and an energy level of a lower end of a conduction band of the metal oxide is less than or equal to an energy level of a lower end of a conduction band of the quantum dots.

公开(公告)号：US10181539B2

公开(公告)日：2019-01-15

申请号：US15632523

申请日：2017-06-26

申请人： Sharp Kabushiki Kaisha ,  The University of Tokyo

发明人： Hirofumi Yoshikawa ,  Makoto Izumi ,  Yasuhiko Arakawa ,  Takeo Kageyama

IPC分类号： H01L31/06 ,  H01L31/0352 ,  H01L21/02 ,  H01L31/0224 ,  H01L31/0232 ,  H01L31/101 ,  H01L31/0304 ,  H01L31/0735 ,  H01L31/054

摘要： A photoelectric conversion element includes a buffer layer, a BSF layer, a base layer, a photoelectric conversion layer, an emitter layer, a window layer, a contact layer, and a p-type electrode sequentially on one surface of a substrate, and includes an n-type electrode on the other surface of the substrate. The photoelectric conversion layer has at least one quantum dot layer. The at least one quantum dot layer includes a quantum dot and a barrier layer. A photoelectric conversion member including the buffer layer, the BSF layer, the base layer, the photoelectric conversion layer, the emitter layer, the window layer, and the contact layer has an edge of incidence that receives light in an oblique direction relative to the growth direction of the quantum dot. A concentrator concentrates sunlight and causes the concentrated sunlight to enter the photoelectric conversion member from the edge of incidence.