公开(公告)号：US20130168605A1

公开(公告)日：2013-07-04

申请号：US13732222

申请日：2012-12-31

Applicant: Intematix Corporation

Inventor： Yi-Qun Li ,  Dejie Tao ,  Shengfeng Liu

IPC: C09K11/77

CPC classification number: C09K11/7734 ,  C09K11/0883 ,  C09K11/7731

Abstract: Phosphors comprising a nitride-based composition represented by the chemical formula: M(x/v)(M′aM″b)Si(c-x)AlxNd:RE, wherein: M is a divalent or trivalent metal with valence v; M′ is at least one divalent metal; M″ is at least one trivalent metal; 2a+3b+4c=3d; and RE is at least one element selected from the group consisting of Eu, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb. Furthermore, the nitride-based composition may have the general crystalline structure of M′aM″bSicNd, where Al substitutes for Si within the crystalline structure and M is located within the crystalline structure substantially at the interstitial sites.

Abstract translation: 包含由化学式M（x / v）（M'aM'b）Si（c-x）Al x N d：RE表示的基于氮化物的组合物的荧光体，其中：M是价数v的二价或三价金属; M'是至少一种二价金属; M“是至少一种三价金属; 2a + 3b + 4c = 3d; RE为选自Eu，Ce，Pr，Nd，Sm，Gd，Tb，Dy，Ho，Er，Tm，Yb中的至少一种元素。 此外，基于氮化物的组合物可以具有M'M''bSicNd的一般结晶结构，其中Al代替晶体结构内的Si，M基本上位于间隙位置的晶体结构内。

公开(公告)号：US12218289B2

公开(公告)日：2025-02-04

申请号：US18135925

申请日：2023-04-18

Applicant: Intematix Corporation

Inventor： Jun-Gang Zhou ,  Gang Wang ,  Yi-Qun Li

IPC: H01L33/50 ,  C09K11/61 ,  C09K11/66 ,  C09K11/77 ,  H01L25/075 ,  H01L33/60

Abstract: A light emitting device includes a Chip Scale Packaged (CSP) LED, the CSP LED including an LED chip that generates blue excitation light; and a photoluminescence layer that covers a light emitting face of the LED chip, wherein the photoluminescence layer comprises from 75 wt % to 100 wt % of a manganese-activated fluoride photoluminescence material of the total photoluminescence material content of the layer. The device/CSP LED can further include a further photoluminescence layer that covers the first photoluminescence and that includes a photoluminescence material that generates light with a peak emission wavelength from 500 nm to 650 nm.

公开(公告)号：US11781065B2

公开(公告)日：2023-10-10

申请号：US17983137

申请日：2022-11-08

Applicant: Intematix Corporation

Inventor： Yi-Qun Li

IPC: C09K11/88 ,  F21K9/232 ,  C09K11/61 ,  C09K11/77 ,  F21Y115/10 ,  H01L33/50

CPC classification number: C09K11/886 ,  C09K11/617 ,  C09K11/7774 ,  F21K9/232 ,  H01L33/504 ,  F21Y2115/10

Abstract: Light emitting devices and LED-filaments comprise an excitation source (e.g. LED) and a photoluminescence material comprising a combination of a first narrow-band red photoluminescence material which generates light with a peak emission wavelength in a range 580 nm to 628 nm and a full width at half maximum emission intensity in a range 45 nm to 60 nm and a second narrow-band red photoluminescence material generates light with a peak emission wavelength in a range 628 nm to 640 nm and a full width at half maximum emission intensity in a range 5 nm to 20 nm. At least one of the first and second narrow-band red photoluminescence materials can comprise a narrow-band red phosphor or a quantum dot (QD) material.

公开(公告)号：US11668451B2

公开(公告)日：2023-06-06

申请号：US17665240

申请日：2022-02-04

Applicant: Intematix Corporation

Inventor： Yi-Qun Li ,  Jing Qiong Zhang

IPC: F21V9/38 ,  A01G7/04 ,  F21Y115/10

CPC classification number: F21V9/38 ,  A01G7/045 ,  F21Y2115/10

Abstract: There is provided a light emitting device, for example a grow-light, comprising: a grow-light comprising: a broadband blue solid-state light source that generates broadband blue light with a peak emission wavelength from 420 nm to 495 nm and a full width at half maximum of at least 30 nm. It may be that the broadband blue light substantially matches at least one of: the absorption peak wavelength of chlorophyll-a; the absorption peak wavelength of chlorophyll-b; and the absorption peak wavelength of carotenoid.

公开(公告)号：US11630258B2

公开(公告)日：2023-04-18

申请号：US17374739

申请日：2021-07-13

Applicant: Intematix Corporation

Inventor： Yi-Qun Li ,  Xianglong Yuan

IPC: G02B5/04 ,  F21V8/00 ,  C09K11/77 ,  C09K11/88 ,  G02B5/02 ,  G02F1/13357 ,  G02B5/20 ,  G02F1/1362 ,  G02F1/1335

Abstract: A display backlight, comprises: an excitation source, LED (146), for generating blue excitation light (148) with a peak emission wavelength in a wavelength range 445 nm to 465 nm; and a photoluminescence wavelength conversion layer (152). The photoluminescence wavelength conversion layer (152) comprises a mixture of a green-emitting photoluminescence material with a peak emission in a wavelength range 530 nm to 545 nm, a red-emitting photoluminescence material with a peak emission in a wavelength range 600 nm to 650 nm and particles of light scattering material.

公开(公告)号：US11492550B2

公开(公告)日：2022-11-08

申请号：US16628577

申请日：2018-06-22

Applicant: Intematix Corporation

Inventor： Yi-Qun Li

IPC: C09K11/88 ,  F21K9/232 ,  H01L33/50 ,  C09K11/61 ,  C09K11/77 ,  F21Y115/10

Abstract: Light emitting devices and LED-filaments comprise an excitation source (e.g. LED) and a photoluminescence material comprising a combination of a first narrow-band red photoluminescence material which generates light with a peak emission wavelength in a range 580 nm to 628 nm and a full width at half maximum emission intensity in a range 45 nm to 60 nm and a second narrow-band red photoluminescence material generates light with a peak emission wavelength in a range 628 nm to 640 nm and a full width at half maximum emission intensity in a range 5 nm to 20 nm. At least one of the first and second narrow-band red photoluminescence materials can comprise a narrow-band red phosphor or a quantum dot (QD) material.

公开(公告)号：US20220229222A1

公开(公告)日：2022-07-21

申请号：US17592354

申请日：2022-02-03

Applicant: Intematix Corporation

Inventor： Xianglong Yuan ,  Gang Wang ,  Yi-Qun Li

IPC: F21V8/00 ,  G02F1/1335 ,  G02F1/13357

Abstract: A display includes a display panel and a backlight. The backlight includes an excitation source that generates blue excitation light with a dominant emission wavelength in a range 445 nm to 465 nm; and a wavelength converting film located remotely to the excitation source and between the excitation source and display panel. The wavelength converting film, in terms of photoluminescence material, includes a manganese-activated fluoride phosphor and a europium activated sulfide phosphor; where the manganese-activated fluoride phosphor receives at least a portion of the blue excitation light and in response emits red light with a peak emission wavelength in a range 610 nm to 650 nm; and where the europium activated sulfide phosphor receives at least a portion of the blue excitation light and in response emits green light having a peak emission wavelength in a range 525 nm to 545 nm; and where the europium activated sulfide phosphor is coated with at least one oxide material.

公开(公告)号：US20220165920A1

公开(公告)日：2022-05-26

申请号：US17103798

申请日：2020-11-24

Applicant: Intematix Corporation

Inventor： Yi-Qun Li ,  Gang Wang ,  Haitao Yang ,  Binghua Chai

IPC: H01L33/50

Abstract: A light emitting device comprises: a solid-state light emitter which generates blue excitation light with a dominant wavelength from 440 nm to 470 nm; a yellow to green photoluminescence material which generates light with a peak emission wavelength from 500 nm to 575 nm; a broadband orange to red photoluminescence material which generates light with a narrowband peak emission wavelength from 580 nm to 620 nm; and a narrowband red manganese-activated fluoride phosphor which generates light with a peak emission wavelength from 625 nm to 635 nm. The device generates white light with a spectrum having a broad emission peak from about 530 nm to about 600 nm and a narrow emission peak and wherein the ratio of the peak emission intensity of the broad emission peak to the peak emission intensity of the narrow emission peak is at least 20%.

公开(公告)号：US11054090B2

公开(公告)日：2021-07-06

申请号：US16775172

申请日：2020-01-28

Applicant: Intematix Corporation

Inventor： Xianglong Yuan ,  Yi-Qun Li

IPC: F21K9/64 ,  H01L25/075 ,  F21Y105/12 ,  H01L33/54 ,  H01L33/62 ,  F21Y115/10

Abstract: A white light emitting device includes a solid-state excitation source operable to generate excitation light having a dominant wavelength ranging from 440 nm to 455 nm; a first photoluminescence material which generates light having a peak emission wavelength ranging from 500 nm to 530 nm; and a second photoluminescence material which generates light having a peak emission wavelength ranging from 640 nm to 690 nm, where the device is operable to generate white light with an IEC TM-30 Gamut Index Rg ranging from 105 to 115. The device can be operable to generate white light having an IEC TM-30 Fidelity Index Rf which ranges from 85 to 95 and a sum of Gamut Index Rg and fidelity index Rf is greater than or equal to 195 and less than or equal to 200.

公开(公告)号：US11015116B2

公开(公告)日：2021-05-25

申请号：US16814110

申请日：2020-03-10

Applicant: Intematix Corporation

Inventor： Haoguo Zhu ,  Yi-Qun Li ,  Kuanping Gong ,  Samuel Lowell Dunscombe

IPC: C09K11/02 ,  C09K11/77 ,  H01L33/50 ,  F21K9/64 ,  H01L33/32 ,  H01L33/48 ,  H01L33/56 ,  H01L33/60 ,  H01L33/62

Abstract: A coated phosphor may comprise: phosphor particles comprised of a phosphor with composition (M)(A)2S4:Eu, wherein: M is at least one of Mg, Ca, Sr and Ba; and A is at least one of Ga, Al, In, Y; a dense impermeable (pinhole-free) coating of an oxide material encapsulating individual ones of the phosphor particles. The coated phosphor is configured to satisfy one or more of the conditions: (1) under excitation by blue light, the reduction in photoluminescent intensity at the peak emission wavelength after 1,000 hours of aging at about 85° C. and about 85% relative humidity is no greater than about 30%; (2) the change in chromaticity coordinates CIE(y), ΔCIE y, after 1,000 hours of aging at about 85° C. and about 85 % relative humidity is less than about 5×10−3; (3) said coated phosphor does not turn black when suspended in a 1 mol/L silver nitrate solution for at least two hours at 85° C.; (4) said coated phosphor does not turn black when suspended in a 1 mol/L silver nitrate solution for at least one day at 20° C.; and (5) said coated phosphor does not turn black when suspended in a 1 mol/L silver nitrate solution for at least 5 days at 20° C.