公开(公告)号：US10690961B2

公开(公告)日：2020-06-23

申请号：US16535402

申请日：2019-08-08

Applicant: Dexerials Corporation

Inventor： Koichi Kishimoto ,  Yasushi Ito ,  Tomomitsu Hori ,  Noritaka Sato

IPC: G02F1/00 ,  G02F1/13357 ,  H01L33/50 ,  H01L25/075 ,  F21V9/30 ,  C09K11/08 ,  C09K11/56 ,  C09K11/62 ,  F21S2/00 ,  F21V7/00 ,  F21V7/22 ,  H01L33/46 ,  C09K11/61 ,  C09K11/77 ,  G02F1/1335 ,  H01L33/44 ,  H01L33/60

Abstract: Provided is a partial drive-type light source device including an excitation light source that is formed from a plurality of light-emitting elements and is partially drivable, a phosphor sheet disposed at a position separated from the excitation light source and containing a phosphor that converts at least part of a wavelength region of incident light from the excitation light source and releases emitted light in a wavelength region differing from the incident light, and a wavelength-selective reflection film that is disposed between the excitation light source and the phosphor sheet and that transmits at least part of light in the wavelength region of the incident light from the excitation light source and reflects at least part of light in the wavelength region of the emitted light from the phosphor sheet.

公开(公告)号：US11183617B2

公开(公告)日：2021-11-23

申请号：US16519181

申请日：2019-07-23

Applicant: Dexerials Corporation

Inventor： Noritaka Sato ,  Koichi Kishimoto ,  Tomomitsu Hori ,  Yasushi Ito

IPC: H01L33/50 ,  G02B5/20 ,  C09K11/56 ,  C09K11/02 ,  C09K11/62 ,  C09K11/06 ,  G02B5/00 ,  G02B5/22 ,  G02F1/13357

Abstract: Disclosed are a phosphor sheet capable for converting light from LEDs into white light, a white light source device including the phosphor sheet, and a display device including the white light source device. The disclosed phosphor sheet includes a phosphor layer containing at least a phosphor and a resin; and a pair of transparent substrates sandwiching the phosphor layer. The phosphor sheet comprises a coloring material having an absorption maximum wavelength of at least one of from 480 nm to 510 nm or from 570 nm to 620 nm. The coloring material is contained in the phosphor layer. The transparent substrates are adhered to both surfaces of the phosphor layer. the phosphor layer has a thickness of 20 μm to 200 μm. An indicator of the usage amount of the coloring material defined by the following formula is 0.003 to 0.028: (indicator of the usage amount of the coloring material)=((blending amount of the coloring material in the phosphor layer)/(blending amount of a resin in the phosphor layer))×(the thickness of the phosphor layer (μm)).

公开(公告)号：US09873832B2

公开(公告)日：2018-01-23

申请号：US14896717

申请日：2014-06-17

Applicant: Dexerials Corporation

Inventor： Tomomitsu Hori ,  Yasushi Ito

IPC: F21V9/16 ,  F21K99/00 ,  C09K11/77 ,  B32B7/12 ,  B32B27/20 ,  B32B27/28 ,  B32B3/06 ,  C09K11/02 ,  G02F1/1335 ,  F21K9/64 ,  F21Y115/10

CPC classification number: C09K11/7731 ,  B32B3/06 ,  B32B7/12 ,  B32B27/20 ,  B32B27/286 ,  B32B2307/422 ,  B32B2307/7246 ,  B32B2457/202 ,  C09K11/02 ,  C09K11/7734 ,  F21K9/64 ,  F21V9/30 ,  F21Y2115/10 ,  G02F1/1336 ,  G02F2001/133614

Abstract: Provided is a phosphor sheet that, despite its simplified structure, is capable of preventing deterioration in phosphors. In one of embodiments, the phosphor sheet includes moisture vapor barrier films 12 and 13 and a phosphor layer 11 that is sandwiched between the moisture vapor barrier films 12 and 13 and that includes a sulfide-based phosphor. Each of the moisture vapor barrier films 12 and 13 has an edge portion that is sealed by a cover member 14. The above structure prevents moisture vapor from entering the phosphor layer 11 from the edge portions of the moisture vapor barrier films 12 and 13, and accordingly, prevents deterioration in the phosphor(s) included in the phosphor layer 11.

公开(公告)号：US10423030B2

公开(公告)日：2019-09-24

申请号：US15570884

申请日：2016-08-09

Applicant: Dexerials Corporation

Inventor： Koichi Kishimoto ,  Yasushi Ito ,  Tomomitsu Hori ,  Noritaka Sato

IPC: G02F1/00 ,  G02F1/1335 ,  C09K11/08 ,  C09K11/56 ,  C09K11/62 ,  F21S2/00 ,  F21V7/00 ,  F21V7/22 ,  F21V9/30 ,  H01L33/46 ,  H01L33/50 ,  H01L25/075 ,  C09K11/61 ,  C09K11/77 ,  H01L33/44 ,  H01L33/60

Abstract: Provided is a partial drive-type light source device capable of suppressing coloring of a section intended to be a dark section when a plurality of light-emitting elements is driven in a partial manner. The partial drive-type light source device includes an excitation light source, a phosphor sheet that is disposed at a position separated from the excitation light source and contains a phosphor that releases emitted light in a wavelength region differing from incident light, and a wavelength-selective reflection film that is disposed between the excitation light source and the phosphor sheet and that transmits at least part of light in the wavelength region of the incident light from the excitation light source and reflects at least part of light in the wavelength region of the emitted light from the phosphor sheet.

公开(公告)号：US09850427B2

公开(公告)日：2017-12-26

申请号：US14605356

申请日：2015-01-26

Applicant: DEXERIALS CORPORATION

Inventor： Hirofumi Tani ,  Tsuneo Kusunoki ,  Masahide Daimon ,  Yasushi Ito ,  Tomomitsu Hori

IPC: C09K11/77 ,  C08L53/02 ,  F21V9/00 ,  F21V9/16 ,  C08F2/48 ,  C09K11/02 ,  H01L25/075 ,  F21K9/64 ,  H01L33/50 ,  G02F1/1335 ,  F21Y101/00 ,  F21Y115/10

CPC classification number: C09K11/7734 ,  C08F2/48 ,  C09K11/025 ,  C09K11/7731 ,  C09K11/7733 ,  F21K9/64 ,  F21Y2101/00 ,  F21Y2115/10 ,  G02F2001/133614 ,  H01L25/0753 ,  H01L33/501 ,  H01L33/504 ,  H01L33/505 ,  H01L2224/48091 ,  H01L2924/0002 ,  Y10T428/256 ,  H01L2924/00014 ,  H01L2924/00

Abstract: In order to suppress the chromaticity shift and corrosion associated with the deterioration of a sulfide phosphor particle, this phosphor sheet is produced using a phosphor particle-containing resin composition which comprises: covered phosphor particles; polymerizable compound; and a polymerization initiator. The covered phosphor particles are obtained by covering phosphor particles with silicon dioxide films, wherein among the phosphor particles, at least sulfide phosphor particles are covered with silicon dioxide films that contain a metal oxide powder. Thus, the phosphor sheet can be inhibited from emitting a sulfur-based gas, and exhibits a minimized chromaticity shift, even when the phosphor sheet is present in such a manner that the edge of the phosphor layer of the sheet is in an exposed state.

公开(公告)号：US09957421B2

公开(公告)日：2018-05-01

申请号：US15119507

申请日：2015-02-05

Applicant: Dexerials Corporation

Inventor： Yasushi Ito ,  Tomomitsu Hori ,  Teruo Hiyama ,  Akihiro Yamazaki ,  Yoshifumi Ueno

IPC: F21V33/00 ,  C09J7/02 ,  B32B3/26 ,  C09J201/00 ,  F21V9/16 ,  G02F1/1335 ,  B32B27/08 ,  B32B27/18 ,  F21K9/64 ,  B32B7/12 ,  B32B15/09 ,  B32B15/20 ,  B32B27/20 ,  B32B27/36 ,  F21V8/00 ,  B32B7/02 ,  B32B7/04 ,  B32B15/04 ,  B32B15/08 ,  B32B27/06 ,  B32B27/28 ,  B32B27/30 ,  B32B27/32 ,  B32B3/30 ,  F21Y115/10 ,  C09J133/00

CPC classification number: C09J7/29 ,  B32B3/26 ,  B32B3/266 ,  B32B3/30 ,  B32B7/02 ,  B32B7/04 ,  B32B7/12 ,  B32B15/04 ,  B32B15/08 ,  B32B15/09 ,  B32B15/20 ,  B32B27/06 ,  B32B27/08 ,  B32B27/18 ,  B32B27/20 ,  B32B27/28 ,  B32B27/286 ,  B32B27/288 ,  B32B27/30 ,  B32B27/308 ,  B32B27/32 ,  B32B27/36 ,  B32B2250/04 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2264/102 ,  B32B2264/105 ,  B32B2307/40 ,  B32B2307/422 ,  B32B2307/7242 ,  B32B2307/7244 ,  B32B2307/7246 ,  B32B2307/732 ,  B32B2405/00 ,  B32B2457/00 ,  B32B2457/20 ,  B32B2457/202 ,  C09J133/00 ,  C09J201/00 ,  C09J2201/16 ,  C09J2201/20 ,  C09J2203/318 ,  C09J2400/163 ,  C09J2433/00 ,  C09J2467/006 ,  F21K9/64 ,  F21V9/30 ,  F21Y2115/10 ,  G02B6/005 ,  G02F1/133603 ,  G02F1/133617 ,  G02F2001/133614 ,  G02F2202/28

Abstract: Provided are a sealing tape that can prevent tape width misalignment, air bubble inclusion, and creasing even when the sealing tape is affixed in a folded state, a phosphor sheet using the same, a lighting device, a liquid-crystal display, a method for manufacturing a phosphor sheet, and a sealing method. The sealing tape (10) includes an adhesive layer (11), a gas barrier layer (12), a bonding layer (13), and a support film layer (14) laminated in stated order, and has an incision (15) into the support film layer (14) in a thickness direction. The incision (15) is located substantially centrally in a width direction and extends in a longitudinal direction. Accordingly, tape width misalignment, air bubble inclusion, and creasing can be prevented even when the sealing tape is affixed in a folded state.

公开(公告)号：US10529899B2

公开(公告)日：2020-01-07

申请号：US15742974

申请日：2016-07-08

Applicant: Dexerials Corporation

Inventor： Noritaka Sato ,  Koichi Kishimoto ,  Tomomitsu Hori ,  Yasushi Ito

IPC: H01L33/00 ,  H01L33/50 ,  G02B5/20 ,  C09K11/02 ,  C09K11/06 ,  C09K11/56 ,  C09K11/62 ,  G02B5/00 ,  G02B5/22 ,  G02F1/13357

Abstract: Disclosed are a phosphor sheet capable of improving color purity of each of RGB reproduced through a color filter, a white light source device including the phosphor sheet, and a display device including the white light source device. The disclosed phosphor sheet is a phosphor sheet for converting LED light into white light, including: a phosphor layer containing at least a phosphor and a resin; and a pair of transparent substrates sandwiching the phosphor layer, in which the phosphor sheet includes a coloring material having an absorption maximum wavelength of at least one of from 480 nm to 510 nm or from 570 nm to 620 nm.

公开(公告)号：US09302432B2

公开(公告)日：2016-04-05

申请号：US13863871

申请日：2013-04-16

Applicant: DEXERIALS CORPORATION

Inventor： Tsubasa Tsukahara ,  Yasushi Ito ,  Naoji Nada ,  Yoshihiro Oshima ,  Hideya Chubachi

IPC: C09K11/00 ,  B29C67/24 ,  F21V8/00 ,  G02F1/1335 ,  H05B33/14 ,  H01L33/50

CPC classification number: B29C67/24 ,  G02B6/0023 ,  G02B6/0055 ,  G02B2207/113 ,  G02F1/133603 ,  G02F1/133606 ,  G02F1/133615 ,  G02F1/133617 ,  G02F2001/133614 ,  H01L33/507 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2933/0041 ,  H05B33/14 ,  H01L2924/00014

Abstract: A color converting member is capable of suppressing deterioration in a phosphor by a simple manufacturing process. A method of manufacturing a color converting member includes a process of molding a resin material into a shape. In the process, molding the resin material and the phosphor integrally into a shape is performed, after kneading a phosphor that converts one color light to another color light into the resin material.

Abstract translation: 彩色转换构件能够通过简单的制造工艺抑制荧光体的劣化。 一种制造颜色转换构件的方法包括将树脂材料模制成形状的工艺。 在此过程中，将将一种颜色的光与另一种颜色的光转换成树脂材料的荧光体混合后，进行将树脂材料和荧光体整体成形为一体的形状。