公开(公告)号：US20230358943A1

公开(公告)日：2023-11-09

申请号：US18135972

申请日：2023-04-18

Applicant: Intematix Corporation

Inventor： Yi-Qun Li ,  Xianglong Yuan

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

CPC classification number: G02B6/005 ,  C09K11/7731 ,  C09K11/886 ,  G02B5/045 ,  G02B6/0023 ,  G02B5/0242 ,  G02F1/1336 ,  G02B5/201 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0055 ,  G02F1/1362

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：US20230288033A1

公开(公告)日：2023-09-14

申请号：US17973530

申请日：2022-10-25

Applicant: Intematix Corporation

Inventor： Xianglong Yuan ,  Yi-Qun Li

IPC: F21K9/64 ,  H01L33/06 ,  F21V15/01 ,  H01L33/62 ,  H01L33/54 ,  H01L33/50 ,  H01L25/075

CPC classification number: F21K9/64 ,  F21V15/01 ,  H01L25/0753 ,  H01L33/06 ,  H01L33/507 ,  H01L33/54 ,  H01L33/62 ,  F21Y2115/10 ,  H01L33/502

Abstract: A full spectrum light emitting device includes photoluminescence materials which generate light with a peak emission wavelength in a range 490 nm to 680 nm (green to red) and a broadband solid-state excitation source operable to generate broadband blue excitation light with a dominant wavelength in a range from 420 nm to 470 nm, where the broadband blue excitation light includes at least two different blue light emissions in a wavelength range 420 nm to 480 nm.

公开(公告)号：US20230176275A1

公开(公告)日：2023-06-08

申请号：US17944111

申请日：2022-09-13

Applicant: Intematix Corporation

Inventor： Xianglong Yuan ,  Yi-Qun Li

IPC: F21V8/00 ,  G02F1/13357 ,  C09K11/88 ,  C09K11/61 ,  C09K11/67 ,  C09K11/77

CPC classification number: G02B6/005 ,  G02F1/133606 ,  G02F1/133611 ,  C09K11/886 ,  C09K11/616 ,  C09K11/675 ,  C09K11/7731 ,  G02F1/133614

Abstract: There is provided a display backlight (604), including an excitation source (644) for generating blue light (650); and a wavelength converter (654) being a unitary construction including a combination of a wavelength selective filter layer (658) bonded to a photoluminescence layer (660), where the photoluminescence layer (658) includes a green photoluminescence material and a red photoluminescence material; and where the wavelength selective filter layer (658) is transmissive to blue light and reflective to green and red light.

公开(公告)号：US11631792B2

公开(公告)日：2023-04-18

申请号：US17379272

申请日：2021-07-19

Applicant: Intematix Corporation

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

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

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：US20230093788A9

公开(公告)日：2023-03-23

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：US20220020732A1

公开(公告)日：2022-01-20

申请号：US17480057

申请日：2021-09-20

Applicant: Intematix Corporation

Inventor： Yi-Qun Li ,  Xianglong Yuan ,  Jun-Gang Zhao

IPC: H01L25/075 ,  H01L33/32 ,  H01L33/08 ,  H01L33/50 ,  H01L33/06

Abstract: A full spectrum white light emitting device comprising: a broadband solid-state excitation source operable to generate broadband blue excitation light; and at least one photoluminescence material which generates green to red light, wherein the device generates white light whose intensity over the blue to cyan region of the spectrum has a maximum percentage deviation from the intensity of light of a black-body or CIE Standard Illuminant D of less than 50%.

公开(公告)号：US11127721B2

公开(公告)日：2021-09-21

申请号：US16903251

申请日：2020-06-16

Applicant: Intematix Corporation

Inventor： Yi-Qun Li ,  Xianglong Yuan ,  Jun-Gang Zhao

IPC: H01L25/075 ,  H01L33/50 ,  H01L33/08 ,  H01L33/32 ,  H01L33/06

Abstract: A full spectrum white light emitting device includes photoluminescence materials which generate light with a peak emission wavelength in a range from about 490 nm to about 680 nm; and a broadband solid-state excitation source operable to generate broadband excitation light with a dominant wavelength in a range from about 420 nm to about 480 nm. The device is operable to generate white light with a Correlated Color Temperature in a range from about 1800K to about 6800K, a CRI R9 less than 90, a spectrum whose intensity decreases from its maximum value in the orange to red region of the spectrum to about 50% of the maximum value at a wavelength in a range from about 645 nm to about 695 nm, and over a wavelength range from about 430 nm to about 520 nm, a maximum percentage intensity deviation of light emitted by the device is less than 60% from the intensity of light of at least one of a black-body curve and CIE Standard Illuminant D of the same Correlated Color Temperature.

公开(公告)号：US11061180B2

公开(公告)日：2021-07-13

申请号：US16090377

申请日：2018-04-19

Applicant: Intematix Corporation

Inventor： Yi-Qun Li ,  Xianglong Yuan

IPC: F21V7/04 ,  F21V8/00 ,  C09K11/77 ,  C09K11/88 ,  G02B5/04 ,  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：US11050003B2

公开(公告)日：2021-06-29

申请号：US16742910

申请日：2020-01-14

Applicant: Intematix Corporation

Inventor： Yi-Qun Li ,  Gang Wang

IPC: F21V21/00 ,  H01L33/50 ,  C09K11/88 ,  F21K9/232 ,  F21V31/00 ,  F21K9/237 ,  F21V19/00 ,  F21V3/10 ,  F21V3/06 ,  F21Y103/10 ,  F21Y115/10

Abstract: A light emitting device (LED-Filament) comprises: a light-transmissive substrate; at least one blue LED chip mounted on the light-transmissive substrate, for instance mounted on a face thereof; and a photoluminescence material at least partially covering the at least one blue LED chip. The photoluminescence material comprises narrow-band red phosphor particles that generates light with a peak emission wavelength in a range of 600 nm to 640 nm and a full width at half maximum emission intensity of 50 nm to 60 nm. The light emitting device is characterized by CRI Ra greater than or equal to about 90. The narrow-band red phosphor particles can comprise at least one Group IIA/IIB selenide sulfide-based phosphor material such as for example CaSe1−xSx:Eu (CSS phosphor). The LED-filament can be incorporated in a lamp, with a yellow to green-emitting phosphor that generates light with a peak emission wavelength in a range of 520 nm to 570 nm, to provide light with a color temperature in a range of 1500 K to 4000 K or 1500 K to 6500 K and a General Color Rendering Index (CRI Ra) greater than or equal to about 90 and a CRI R9 greater than or equal to about 50.

公开(公告)号：US20210131618A1

公开(公告)日：2021-05-06

申请号：US16954925

申请日：2019-06-25

Applicant: Intematix Corporation

Inventor： Xianglong Yuan ,  Yi-Qun Li

IPC: F21K9/64 ,  H01L33/06 ,  F21V15/01 ,  H01L33/62 ,  H01L33/54 ,  H01L33/50 ,  H01L25/075

Abstract: A full spectrum light emitting device includes photoluminescence materials which generate light with a peak emission wavelength in a range 490 nm to 680 nm (green to red) and a broadband solid-state excitation source operable to generate broadband blue excitation light with a dominant wavelength in a range from 420 nm to 470 nm, where the broadband blue excitation light includes at least two different blue light emissions in a wavelength range 420 nm to 480 nm.