公开(公告)号：US20220213022A1

公开(公告)日：2022-07-07

申请号：US17560931

申请日：2021-12-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Fumiaki KATO ,  Tomoyuki KIKUCHI ,  Hiroko ENDO ,  Keigo FURUTA ,  Keisuke KORAI ,  Mitsunori ITO ,  Naotoshi SUGANUMA ,  Takao MOTOYAMA ,  Dae Young CHUNG ,  Eun Joo JANG ,  Ha Il KWON ,  Hyo Sook JANG ,  Soonmin CHA ,  Tae Ho KIM

IPC: C07C211/54 ,  H01L51/00 ,  C07C211/61 ,  C07D209/82

Abstract: Provided is a compound represented by Chemical Formula 1 capable of manufacturing an EL device by inkjet printing. In Chemical Formula 1, n is an integer of greater than or equal to 3 and less than or equal to 10, X is a group represented by Chemical Formula 2 and a plurality of X's may be the same or different from each other, and Y is a group represented by Chemical Formula 3 and a plurality of Y's may be the same or different from each other.

公开(公告)号：US20170205723A1

公开(公告)日：2017-07-20

申请号：US15408887

申请日：2017-01-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Takuya KITABATAKE ,  Fusaki FUJIBAYASHI ,  Hiroko ENDO ,  Masahide YAMADA ,  Kensuke KUBO

IPC: G03G9/09 ,  G03G9/087 ,  G03G9/08

CPC classification number: G03G9/0902 ,  G03G9/0804 ,  G03G9/0815 ,  G03G9/0819 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/0926

Abstract: A toner for developing electrostatic images includes a binder, a colorant, iron, silicon, and sulfur. The colorant includes a phosphor and a non-fluorescent colorant. The phosphor includes either one or both of a nitride and an oxynitride each including an alkaline-earth metal, silicon, and an activator element. A volume average particle diameter of the phosphor is greater than or equal to about 50 nm and less than or equal to about 400 nm. An internal quantum efficiency of the phosphor at an excitation wavelength of 450 nm is greater than or equal to about 60%.

公开(公告)号：US20160017222A1

公开(公告)日：2016-01-21

申请号：US14803566

申请日：2015-07-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Takuya KITABATAKE ,  Fusaki FUJIBAYASHI ,  Hiroko ENDO ,  Masahide YAMADA ,  Takatoshi SETO

IPC: C09K11/77

CPC classification number: C09K11/7734 ,  C09K11/7792

Abstract: Disclosed is a phosphor including at least one of a nitride and an oxynitride, wherein the nitride and the oxynitride contain an alkaline-earth metal element, silicon, and an activator element. wherein the phosphor has a volume average particle diameter of greater than or equal to about 50 nm and less than or equal to about 400 nm and an inner quantum efficiency of greater than or equal to about 60% at an excitation wavelength of about 450 nm. The method of preparing a phosphor includes a precursor preparation process of preparing a phosphor precursor particles including a silicon nitride particles, a compound containing an alkaline-earth metal element, and a compound containing an activator element, wherein the compound containing an alkaline-earth metal element and the compound containing an activator element are deposited on the surface of the silicon nitride particles; and a firing process of firing the phosphor precursor particles.

Abstract translation: 公开了包括氮化物和氮氧化物中的至少一种的磷光体，其中氮化物和氮氧化物含有碱土金属元素，硅和活化元素。 其中所述磷光体在约450nm的激发波长处具有大于或等于约50nm且小于或等于约400nm的体积平均粒径和大于或等于约60％的内量子效率。 制备荧光体的方法包括制备包括氮化硅颗粒，含有碱土金属元素的化合物和含有活化剂元素的化合物的荧光体前体颗粒的前体制备方法，其中含有碱土金属的化合物 元素和含有活化剂元素的化合物沉积在氮化硅颗粒的表面上; 以及烧制荧光体前体粒子的烧成工序。

公开(公告)号：US20230257607A1

公开(公告)日：2023-08-17

申请号：US18169753

申请日：2023-02-15

Applicant: SAMSUNG ELECTRONICS CO., LTD

Inventor： Keigo FURUTA ,  Hiroko ENDO ,  Takao MOTOYAMA ,  Yukika YAMADA ,  Tomoyuki KIKUCHI ,  Eun Joo JANG ,  Hyo Sook JANG ,  Jun-Mo YOO ,  Tae Ho KIM ,  Yuho WON

IPC: C09D11/36 ,  C09D11/38 ,  H10K50/115

CPC classification number: C09D11/36 ,  C09D11/38 ,  H10K50/115

Abstract: A quantum dot ink composition including a plurality of quantum dots, and a mixed solvent including a Solvent a and a Solvent b, the ink composition having a surface tension of about 30 mN/m to about 40 mN/m, where Solvent a is a cycloalkane compound with at least one ring carbon having a linear C4 to C16 alkyl group, and Solvent b is an aromatic hydrocarbon compound having a linear C2 to C12 alkyl group. A quantum dot electroluminescent device including a light emitting layer formed from the quantum dot composition.

公开(公告)号：US20170137708A1

公开(公告)日：2017-05-18

申请号：US15353062

申请日：2016-11-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Takuya KITABATAKE ,  Fusaki FUJIBAYASHI ,  Hiroko ENDO ,  Masahide YAMADA

IPC: C09K11/77 ,  C09K11/08

CPC classification number: C09K11/7734 ,  C01B21/0602 ,  C04B35/584 ,  C04B35/6268 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3224 ,  C04B2235/3873 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/549 ,  C09K11/0883 ,  C09K11/7792 ,  H01L33/502

Abstract: A phosphor includes a nitride including an alkaline-earth metal element, silicon, and an activator element, wherein the phosphor has a volume average particle diameter ranging from about 50 nm to about 400 nm, and an internal quantum efficiency of greater than or equal to about 60% at an excitation wavelength of 450 nm, the phosphor is represented by a formula M2Si5N8, the M includes one or more alkaline-earth metal element selected from Ca, Sr, Ba, and Mg and including at least Sr, and one or more activator element selected from Eu and Ce and including at least Eu, an amount of the Sr included in the phosphor is about 15 mol % to about 99 mol % based on total moles of the M, and an amount of the activator element included in the phosphor is about 1 mol % to 20 mol % based on the total moles of the M.

公开(公告)号：US20230287231A1

公开(公告)日：2023-09-14

申请号：US18180419

申请日：2023-03-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hiroko ENDO ,  Keigo FURUTA ,  Takao MOTOYAMA ,  Yukika YAMADA ,  Tomoyuki KIKUCHI ,  Eun Joo JANG ,  Hyo Sook JANG ,  Jun-Mo YOO ,  Tae Ho KIM ,  Yuho WON

IPC: C09D11/50 ,  C09D11/037 ,  C09D11/033 ,  C09D11/322 ,  C09D11/36 ,  C09K11/02 ,  C09K11/88 ,  C09K11/08 ,  H10K50/115 ,  H10K71/13

CPC classification number: C09D11/50 ,  C09D11/037 ,  C09D11/033 ,  C09D11/322 ,  C09D11/36 ,  C09K11/025 ,  C09K11/883 ,  C09K11/0883 ,  H10K50/115 ,  H10K71/135 ,  B82Y20/00

Abstract: A quantum dot ink composition including a plurality of quantum dots, and a mixed solvent including a Solvent a and a Solvent b, a quantum dot electroluminescent device including a light emitting layer formed from the quantum dot composition, and a method of making the quantum dot electroluminescent device are provided, where Solvent a is a cycloalkane compound with at least one ring carbon having a linear C4 to C16 alkyl group, an aromatic hydrocarbon compound having a linear C2 to C12 alkyl group, or a combination thereof, and Solvent b is a fluorinated alcohol.

公开(公告)号：US20210269599A1

公开(公告)日：2021-09-02

申请号：US17186294

申请日：2021-02-26

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Osaka Gas Chemicals Co., Ltd.

Inventor： Nobuji SAKAI ,  Hiroko ENDO ,  Yukika YAMADA ,  Eigo MIYAZAKI

IPC: C08G75/0236

Abstract: A triazine ring-containing polymer having a high refractive index and a low birefringence, and being capable of being subjected to injection molding, wherein the polymer having a repeating unit of *-[A-B-]-*, including a structural unit A derived from a triazinedithiol compound, and a structural unit B including an aromatic hydrocarbon group; and a thermoplastic resin, a thermoplastic article, and an optical part including the polymer.