公开(公告)号：US20240088326A1

公开(公告)日：2024-03-14

申请号：US18385351

申请日：2023-10-30

Applicant: Seoul Semiconductor Co., Ltd.

Inventor： Bang Hyun KIM ,  Young-Hye Seo ,  Jae Ho Lee ,  Jong Min Lee ,  Seoung Ho Jung ,  Eui Sung Jeong

IPC: H01L33/08 ,  G02B3/08 ,  H01L33/20 ,  H01L33/50 ,  H01L33/60

CPC classification number: H01L33/08 ,  G02B3/08 ,  H01L33/20 ,  H01L33/504 ,  H01L33/60 ,  H01L33/505

Abstract: A light device including a substrate, and first and second light emitters spaced apart from each other, and a power source to control the first light emitter and the second light emitter, in which the first and second light emitters include a light emitting region, a wavelength conversion layer disposed on the light emitting region, and a lateral reflection layer covering a region of a side of the light emitting region and the wavelength conversion layer, the first light emitter and the second light emitter are configured to output the same or different magnitudes of power by receiving the same or different magnitudes of current, the first and second light emitters are respectively configured to emit first light and second light, the first light emitter is electrically connected to the second light emitter through a common electrode.

公开(公告)号：US11929454B2

公开(公告)日：2024-03-12

申请号：US17345335

申请日：2021-06-11

Applicant: NICHIA CORPORATION

Inventor： Shinya Okura ,  Takanobu Sogai ,  Koji Oshodani

IPC: H01L33/50 ,  H01L25/075 ,  H01L33/36 ,  H01L33/38 ,  H01L33/46 ,  H01L33/52 ,  H01L33/62 ,  H05B45/40 ,  H01L25/16 ,  H01L33/54 ,  H01L33/58

CPC classification number: H01L33/502 ,  H01L33/505 ,  H01L33/52 ,  H01L33/62 ,  H05B45/40 ,  H01L25/0753 ,  H01L25/167 ,  H01L33/36 ,  H01L33/38 ,  H01L33/46 ,  H01L33/504 ,  H01L33/54 ,  H01L33/58 ,  H01L2224/48137

Abstract: A light emitting device includes: a base member having a first surface including a first region and a second region; a first frame provided on the base member and surrounding the first region; a light emitting element provided on the base member in the first region; a light-transmissive first member provided inward of the first frame, and covering the light emitting element; an electronic component provided on the base member in the second region and electrically connected with the light emitting element; and a plurality of pin holes arrayed in a first direction and electrically connected with the electronic component, the first direction being orthogonal to a thickness direction of the base member. The electronic component is provided on a side opposite the plurality of pin holes with respect to the light emitting element in a second direction that is orthogonal to the thickness direction and the first direction.

公开(公告)号：US11923486B2

公开(公告)日：2024-03-05

申请号：US17868995

申请日：2022-07-20

Applicant: KAISTAR Lighting(Xiamen) Co., Ltd.

Inventor： Jing-Qiong Zhang ,  Ben-Jie Fan ,  Hung-Chih Yang ,  Shuen-Ta Teng

IPC: H01L33/50 ,  H01L33/08 ,  H01L33/06

CPC classification number: H01L33/504 ,  H01L33/06 ,  H01L33/08

Abstract: A light-emitting module and a light-emitting diode are provided. The light-emitting diode includes an epitaxial light-emitting structure to generate a light beam with a broadband blue spectrum. A spectrum waveform of the broadband blue spectrum has a full width at half maximum (FWHM) larger than or equal to 30 nm. The spectrum waveform has a plurality of peak inflection points, and a difference between two wavelength values to which any two adjacent ones of the peak inflection points respectively correspond is less than or equal to 18 nm.

公开(公告)号：US20240072217A1

公开(公告)日：2024-02-29

申请号：US18387630

申请日：2023-11-07

Applicant: Lawrence Livermore National Security, LLC ,  Current Lighting Solutions, LLC

Inventor： Nerine CHEREPY ,  Ross Allen OSBORNE ,  Stephen PAYNE ,  Zachary SEELEY ,  Alok SRIVASTAVA ,  William BEERS ,  William COHEN

IPC: H01L33/50 ,  F21K9/64 ,  F21K9/90 ,  H01L33/00 ,  H01L33/64

CPC classification number: H01L33/504 ,  F21K9/64 ,  F21K9/90 ,  H01L33/0095 ,  H01L33/641 ,  F21Y2115/30

Abstract: The present disclosure relates to a lighting component which may comprise a light emitting diode (LED) or laser diode (LD) for generating at least one of blue light or ultraviolet light. A fluoride phosphor matrix may be included, which may be consolidated into a phosphor ceramic structure including at least one of a transparent fluoride ceramic structure or a translucent fluoride ceramic structure, and positioned adjacent to the LED or LD. The phosphor ceramic structure generates at least one of red or orange light when irradiated by the light emitted from the LED or LD. The phosphor ceramic structure exhibits reduced thermal quenching relative to a fluoride particulate structure irradiated by the LED or LD.

公开(公告)号：US20240052240A1

公开(公告)日：2024-02-15

申请号：US18259267

申请日：2021-11-08

Applicant: NICHIA CORPORATION

Inventor： Yoshinori MURAZAKI

IPC: C09K11/68 ,  C01G17/00 ,  C09K11/77 ,  C09K11/66 ,  H01L33/50

CPC classification number: C09K11/684 ,  C01G17/006 ,  C09K11/7739 ,  C09K11/77342 ,  C09K11/7774 ,  C09K11/77348 ,  C09K11/665 ,  C09K11/7708 ,  H01L33/504 ,  H01L33/502 ,  C01P2002/54 ,  C01P2006/60 ,  H01S5/0087

Abstract: Provided is an oxide fluorescent material having a light emission peak in a wavelength range from red light to near-infrared light.
The oxide fluorescent material has a composition including: a first element M1 being at least one element selected from the group consisting of Li, Na, K, Rb, and Cs; a second element M2 being at least one element selected from the group consisting of Ca, Sr, Mg, Ba, and Zn; Ge; O (oxygen); and Cr, the composition optionally including: a third element M3 being at least one element selected from the group consisting of Si, Ti, Zr, Sn, Hf, and Pb; and a fourth element M4 being at least one element selected from the group consisting of Eu, Ce, Tb, Pr, Nd, Sm, Yb, Ho, Er, Tm, Ni, and Mn. When the molar ratio of Ge, or the total molar ratio of the third element M3 and Ge in the case of comprising the third element M3, in 1 mol of the composition of the oxide fluorescent material is 6, the molar ratio of the first element M1 is 1.5 or more and 2.5 or less, the molar ratio of the second element M2 is 0.7 or more and 1.3 or less, the molar ratio of the third element M3 is 0 or more and 0.4 or less, the molar ratio of O (oxygen) is 12.9 or more and 15.1 or less, and the molar ratio of Cr is 0.2 or less. The oxide fluorescent material has a light emission peak wavelength of 700 nm or more and 1,050 nm or less in a light emission spectrum of the oxide fluorescent material.

公开(公告)号：US11891555B2

公开(公告)日：2024-02-06

申请号：US18192776

申请日：2023-03-30

Applicant: Mitsubishi Chemical Corporation ,  NATIONAL INSTITUTE FOR MATERIALS SCIENCE

Inventor： Tomoyuki Kurushima ,  Yuhei Inata ,  Naoto Hirosaki

IPC: C09K11/77 ,  H01L33/50 ,  F21V9/30 ,  F21S43/16 ,  F21W103/20 ,  H01L33/60

CPC classification number: C09K11/77346 ,  C09K11/7706 ,  C09K11/77348 ,  F21S43/16 ,  F21V9/30 ,  H01L33/504 ,  F21W2103/20 ,  H01L33/60

Abstract: A phosphor having a favorable emission peak wavelength, narrow full width at half maximum, and/or high emission intensity is provided. Additionally, a light-emitting device, an illumination device, an image display device, and/or an indicator lamp for a vehicle having favorable color rendering, color reproducibility and/or favorable conversion efficiency are provided. The present invention relates to a phosphor including a crystal phase having a composition represented by a specific formula, and having a minimum reflectance of 20% or more in a specific wavelength region, in which the specific wavelength region is from the emission peak wavelength of the phosphor to 800 nm, and a light-emitting device comprising the phosphor.

公开(公告)号：US11891554B2

公开(公告)日：2024-02-06

申请号：US18192417

申请日：2023-03-29

Applicant: Mitsubishi Chemical Corporation ,  NATIONAL INSTITUTE FOR MATERIALS SCIENCE

Inventor： Tomoyuki Kurushima ,  Yuhei Inata ,  Naoto Hirosaki

IPC: C09K11/77 ,  H01L33/50 ,  F21V9/30 ,  F21S43/16 ,  F21W103/20 ,  H01L33/60

CPC classification number: C09K11/77346 ,  C09K11/7706 ,  C09K11/77348 ,  F21S43/16 ,  F21V9/30 ,  H01L33/504 ,  F21W2103/20 ,  H01L33/60

Abstract: A phosphor having a favorable emission peak wavelength, narrow full width at half maximum, and/or high emission intensity is provided. Additionally, a light-emitting device, an illumination device, an image display device, and/or an indicator lamp for a vehicle having favorable color rendering, color reproducibility and/or favorable conversion efficiency are provided. The present invention relates to a phosphor including a crystal phase having a composition represented by a specific formula, and having a minimum reflectance of 20% or more in a specific wavelength region, in which the specific wavelength region is from the emission peak wavelength of the phosphor to 800 nm, and a light-emitting device comprising the phosphor.

公开(公告)号：US11887972B2

公开(公告)日：2024-01-30

申请号：US17055206

申请日：2019-05-08

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Koji Kusunoki ,  Yosuke Tsukamoto ,  Kensuke Yoshizumi

IPC: H01L25/075 ,  H01L27/12 ,  H01L29/786 ,  H01L33/50 ,  H01L33/58 ,  H01L33/62

CPC classification number: H01L25/0753 ,  H01L27/1225 ,  H01L29/7869 ,  H01L29/78651 ,  H01L33/504 ,  H01L33/58 ,  H01L33/62 ,  H01L2933/0041 ,  H01L2933/0058 ,  H01L2933/0066

Abstract: A display device with a high luminance, a high contrast, and low power consumption is provided. The display device includes a transistor, a light-emitting element, a coloring layer, a phosphor layer, a first electrode, and a second electrode. The light-emitting element is electrically connected to the first electrode and the second electrode, the first electrode is electrically connected to the transistor, and the second electrode is positioned on the same plane as the first electrode. The coloring layer is positioned over the light-emitting element, the phosphor layer is positioned between the light-emitting element and the coloring layer, and the phosphor layer, the light-emitting element, and the coloring layer include a region in which they overlap with one another. The light-emitting element includes a light-emitting diode chip, and the phosphor layer has a function of emitting light of a complementary color of an emission color of the light-emitting element.

公开(公告)号：US20240021762A1

公开(公告)日：2024-01-18

申请号：US18036835

申请日：2021-11-09

Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： Heon Su JEON ,  Tae Yun LEE

IPC: H01L33/60 ,  H01L33/50

CPC classification number: H01L33/60 ,  H01L33/504

Abstract: A resonant cavity structure includes an upper layer in which first dielectric layers and second dielectric layers having different refractive indices are alternately stacked, a lower layer in which the first dielectric layers and the second dielectric layers are alternately stacked, and a cavity formed between the upper layer and the lower layer, wherein the cavity includes a wavelength conversion material that absorbs light having a first wavelength and emits light having a second wavelength different from the first wavelength, the resonant cavity structure is designed so that resonance occurs in the cavity at the first wavelength, and is provided so that an excitation light of the first wavelength is incident from below the lower layer.

公开(公告)号：US20230420619A1

公开(公告)日：2023-12-28

申请号：US18123705

申请日：2023-03-20

Applicant: KORRUS, INC.

Inventor： Aurelien J.F. David ,  Arpan Chakraborty ,  Michael Ragan Krames ,  Troy Trottier

IPC: H01L33/50 ,  C09K11/08 ,  C09K11/77 ,  H01L33/54 ,  C09K11/56 ,  H01L33/08 ,  H01L33/32 ,  H01L33/48

CPC classification number: H01L33/504 ,  C09K11/0883 ,  C09K11/7739 ,  C09K11/7774 ,  H01L33/54 ,  C09K11/565 ,  C09K11/77348 ,  H01L33/08 ,  H01L33/32 ,  H01L33/486 ,  H01L25/0753

Abstract: An LED pump light with multiple phosphors is described. LEDs emitting radiation at violet and/or ultraviolet wavelengths are used to pump phosphor materials that emit other colors. The LEDs operating in different wavelength ranges are arranged to reduce light re-absorption and improve light output efficiency.