公开(公告)号：US20250054919A1

公开(公告)日：2025-02-13

申请号：US18427182

申请日：2024-01-30

Applicant: Intematix Corporation

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

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

Abstract: A device may include a broadband LED flip chip that generates broadband light of dominant wavelength from about 420 nm to about 480 nm and a FWHM from 25 nm to 50 nm; and at least one photoluminescence layer covering a light emitting face of the broadband LED flip chip; wherein the broadband LED flip chip comprises a broadband InGaN/GaN multiple quantum wells LED chip comprising multiple different wavelength quantum wells in its active region that generate multiple narrowband light emissions of multiple different wavelengths, where broadband light generated by the broadband LED flip chip includes a combination of the multiple narrowband light emissions, and where at least one photoluminescence material layer comprises a first photoluminescence material which generates light with a peak emission wavelength from 490 nm to 550 nm; and a second photoluminescence material which generates light with a peak emission wavelength from 600 nm to 680 nm.

公开(公告)号：US20220389313A1

公开(公告)日：2022-12-08

申请号：US17805458

申请日：2022-06-04

Applicant: Intematix Corporation

Inventor： Gang WANG ,  Yi-Qun LI

IPC: C09K11/61 ,  H01L33/26 ,  H01L33/08 ,  C09K11/77 ,  C09K11/64

Abstract: A white light emitting device comprises: an LED that generates excitation light of wavelength from 420 nm to 480 nm; and photoluminescence materials that generate light with a peak emission wavelength from 500 nm to 650 nm comprising a broadband phosphor, and a manganese-activated narrowband red fluoride phosphor with a peak emission wavelength from 628 nm to 640 nm and a full width at half maximum of less than 30 nm. The device generates white light with a selected color temperature from 2200K to 6500K, a General Color Rendering Index, CRI Ra, of at least 80, and a Duv (Delta u, v) from 0.0060 to 0.0170 for the selected color temperature and wherein the device has an LER (Luminous Efficacy of Radiation) of at least 320 lm/Wopt.

公开(公告)号：US11442218B2

公开(公告)日：2022-09-13

申请号：US16791702

申请日：2020-02-14

Applicant: Intematix Corporation

Inventor： Xianglong Yuan ,  Yi-Qun Li

IPC: F21V8/00 ,  G02F1/13357 ,  C09K11/88 ,  C09K11/61 ,  C09K11/67 ,  C09K11/77 ,  G02F1/1335

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：US20220107060A1

公开(公告)日：2022-04-07

申请号：US17543639

申请日：2021-12-06

Applicant: Intematix Corporation

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

IPC: F21K9/232 ,  H01L25/075 ,  H01L33/50 ,  C09K11/61 ,  C09K11/77

Abstract: An LED-filament comprising: a partially light transmissive substrate; a plurality of LED chips on a front face of the substrate; a photoluminescence material that is in direct contact with and covers all of the plurality of LED chips; and a light scattering layer that is in direct contact with and covers at least the photoluminescence material, wherein the light scattering layer comprises particles of light scattering material, and wherein the photoluminescence material comprises broadband green to red photoluminescence materials and narrowband red photoluminescence material.

公开(公告)号：US10557594B2

公开(公告)日：2020-02-11

申请号：US15815577

申请日：2017-11-16

Applicant: Intematix Corporation

Inventor： Yi-Qun Li

IPC: F21K9/64 ,  F21K9/232 ,  F21K9/233 ,  G02B6/00 ,  H01L33/50 ,  F21V8/00 ,  F21V3/02 ,  F21V7/04 ,  F21V29/506 ,  F21V29/70 ,  F21V29/83 ,  F21Y115/10

Abstract: Disclosed are improved photoluminescence wavelength conversion components and lamps that incorporate such components. The photoluminescence wavelength conversion component comprises a hollow cylindrical tube having a given bore of diameter and an axial length. The relative dimensions and shape of the component can affect the radial emission pattern of the component and are configured to give a required emission pattern (typically omnidirectional). The photoluminescence material can be homogeneously distributed throughout the volume of the component during manufacture of the component. An extrusion method can be used to form the improved photoluminescence wavelength conversion component. Injection molding or casting can also be used to form the component. Another possible approach is to manufacture the component is by forming a flexible sheet material to include the phosphor and/or quantum dots, and then rolling the sheet material into the desired shape and dimensions for the component. The improved wavelength conversion components and lamps that incorporate these components provide for improved emission characteristic, while allowing for relatively cost-effective manufacturing costs. A further advantage of components is that their light emission resembles a filament of a conventional incandescent light bulb.

公开(公告)号：US10535805B2

公开(公告)日：2020-01-14

申请号：US15870705

申请日：2018-01-12

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-x Sx: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：US10234725B2

公开(公告)日：2019-03-19

申请号：US15078921

申请日：2016-03-23

Applicant: Intematix Corporation

Inventor： Haitao Yang ,  Yi-Qun Li

IPC: G02F1/1333 ,  G02F1/1335 ,  G02B5/20 ,  G02F1/1343

Abstract: A photoluminescence color display comprises a display panel that displays red, green and blue sub-pixel areas, an excitation source operable to generate excitation radiation for operating the display, and a combined layer of photoluminescence materials and filter pigments. The combined layer comprises at least one photoluminescence material, such as a phosphor material or quantum dots, that is operable to emit light corresponding to red, green and blue sub-pixel areas of the display in response to said excitation radiation.

公开(公告)号：US20180233632A1

公开(公告)日：2018-08-16

申请号：US15668394

申请日：2017-08-03

Applicant: Intematix Corporation

Inventor： Xianglong Yuan ,  Bing Dai ,  Jonathan Melman ,  Charles Edwards

IPC: H01L33/50 ,  C09K11/77 ,  F21V8/00 ,  C09K11/02 ,  B41F15/00 ,  H01L33/60 ,  G02F1/1335

CPC classification number: H01L33/502 ,  B41F15/00 ,  C09K11/02 ,  C09K11/7734 ,  C09K11/7774 ,  G02B6/005 ,  G02F1/133615 ,  G02F2001/133614 ,  H01L33/501 ,  H01L33/60 ,  H01L2933/0041 ,  H01L2933/0058

Abstract: A photoluminescent composition (“phosphor ink”) comprises a suspension of particles of at least one blue light (380 nm to 480 nm) excitable phosphor material in a light transmissive liquid binder in which the weight loading of at least one phosphor material to binder material is in a range 40% to 75%. The binder can be U.V. curable, thermally curable, solvent based or a combination thereof and comprise a polymer resin; a monomer resin, an acrylic, a silicone or a fluorinated polymer. The composition can further comprise particles of a light reflective material suspended in the liquid binder. Photoluminescence wavelength conversion components; solid-state light emitting devices; light emitting signage surfaces and light emitting signage utilizing the composition are disclosed.

公开(公告)号：US20180130775A1

公开(公告)日：2018-05-10

申请号：US15376385

申请日：2016-12-12

Applicant: Intematix Corporation

Inventor： Yi-Qun Li ,  Hwa (Harik) Su ,  Chienli (Jeff) Yang

IPC: H01L25/075 ,  F21K9/232 ,  F21K9/64 ,  H01L33/54 ,  H01L33/50 ,  H01L33/48

CPC classification number: H01L25/0753 ,  F21K9/232 ,  F21K9/64 ,  F21V9/30 ,  F21V9/32 ,  H01L33/486 ,  H01L33/507 ,  H01L33/54 ,  H01L2224/48091 ,  H01L2224/73265 ,  H01L2924/0002 ,  H01L2924/00014 ,  H01L2924/00

Abstract: An LED-based light source for generating light having a selected dominant wavelength λds comprises a package housing a plurality of LEDs consisting of LEDs from first and second wavelength bins. The first wavelength bin comprises LEDs having a dominant wavelength λd1 that is within a first wavelength range and the second wavelength bin comprises LEDs having a dominant wavelength λd2 that is within a second wavelength range. The first wavelength bin can comprise LEDs having a dominant wavelength that is shorter than the selected dominant wavelength whilst the second wavelength bin comprises LEDs having a dominant wavelength that is longer than the selected dominant wavelength. The wavelength bins and number of LEDs are selected such that in operation the dominant wavelength of the combined light emitted by the source is the selected dominant wavelength. Lighting arrangements and light emitting devices incorporating such light sources are disclosed.

公开(公告)号：US09695357B2

公开(公告)日：2017-07-04

申请号：US14618219

申请日：2015-02-10

Applicant: Intematix Corporation

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

IPC: C09K11/77 ,  C09K11/08

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.