公开(公告)号：US12114518B2

公开(公告)日：2024-10-08

申请号：US17511706

申请日：2021-10-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung Woo Kim ,  Chan Su Kim ,  Tae Ho Kim ,  Kun Su Park ,  Eun Joo Jang ,  Jin A Kim ,  Tae Hyung Kim ,  Jeong Hee Lee

IPC: H10K50/11 ,  H10K30/10 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K85/60

CPC classification number: H10K50/11 ,  H10K30/10 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K85/649

Abstract: An electroluminescent device, a method of manufacturing the same, and a display device including the same. The electroluminescent device includes a first electrode and a second electrode facing each other; an emission layer disposed between the first electrode and the second electrode, the emission layer including light emitting particles; an electron transport layer disposed between the first electrode and the emission layer; and a hole transport layer disposed between the second electrode and the emission layer, wherein the electron transport layer includes inorganic oxide particles and a metal-organic compound, the metal-organic compound or a thermal decomposition product of the metal-organic compound being soluble a non-polar solvent.

公开(公告)号：US12060511B2

公开(公告)日：2024-08-13

申请号：US17063821

申请日：2020-10-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yuho Won ,  Jeong Hee Lee ,  Eun Joo Jang ,  Ha Il Kwon ,  Sujin Park

IPC: C09K11/08 ,  C09K11/88 ,  H10K50/115 ,  B82Y20/00 ,  B82Y40/00

CPC classification number: C09K11/883 ,  C09K11/0883 ,  H10K50/115 ,  B82Y20/00 ,  B82Y40/00

Abstract: A quantum dot including a semiconductor nanocrystal core including indium (In) and phosphorus (P) and a semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the semiconductor nanocrystal shell including zinc (Zn) and selenium (Se), wherein the semiconductor nanocrystal shell is doped with a dopant metal having a larger ion radius than a radius of an Zn2+ ion, the quantum dot does not include cadmium, and the quantum dot has a quantum efficiency of greater than or equal to about 70% and a full width at half maximum (FWHM) of an emission peak of less than or equal to about 40 nanometers (nm), and an electroluminescent device including the same.

公开(公告)号：US11917899B2

公开(公告)日：2024-02-27

申请号：US17193078

申请日：2021-03-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Masashi Tsuji ,  Takahiro Fujiyama ,  Yusaku Konishi ,  Dae Young Chung ,  Fumiaki Kato ,  Jaejun Chang ,  Keigo Furuta ,  Takao Motoyama ,  Eun Joo Jang ,  Hyo Sook Jang ,  Tae Ho Kim ,  Tomoyuki Kikuchi ,  Yuho Won

IPC: H10K85/10 ,  C09K11/06 ,  C08G61/12 ,  H10K50/15 ,  H10K50/17

CPC classification number: H10K85/115 ,  C08G61/12 ,  C09K11/06 ,  H10K85/151 ,  C08G2261/124 ,  C08G2261/147 ,  C08G2261/148 ,  C08G2261/1412 ,  C08G2261/18 ,  C08G2261/228 ,  C08G2261/312 ,  C08G2261/3142 ,  C08G2261/3162 ,  C08G2261/95 ,  C09K2211/1416 ,  C09K2211/1425 ,  C09K2211/1433 ,  H10K50/15 ,  H10K50/17

Abstract: An arylamine-fluorene alternating copolymer having a structural unit (A) is represented by Chemical Formula (1):




wherein Chemical Formula (1) is the same as described in the detailed description.

公开(公告)号：US11910697B2

公开(公告)日：2024-02-20

申请号：US17470884

申请日：2021-09-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Fumiaki Kato ,  Masashi Tsuji ,  Takao Motoyama ,  Yusaku Konishi ,  Keigo Furuta ,  Takahiro Fujiyama ,  Tae Ho Kim ,  Won Sik Yoon ,  Ha Il Kwon ,  Dae Young Chung ,  Eun Joo Jang

IPC: H10K85/10 ,  C08G61/10 ,  C08L65/02 ,  H10K50/15 ,  H10K50/17

CPC classification number: H10K85/111 ,  C08G61/10 ,  C08L65/02 ,  C08G2261/11 ,  C08G2261/148 ,  C08G2261/149 ,  C08G2261/1434 ,  C08G2261/312 ,  C08G2261/3142 ,  C08G2261/95 ,  H10K50/15 ,  H10K50/17

Abstract: A copolymer having a structural unit represented by Chemical Formula 1 is provided. The copolymer may improve performance, e.g., luminous efficiency, of an electroluminescence device.




In Chemical Formula 1, the definition of each substituent is as described in the detailed description.

公开(公告)号：US11845888B2

公开(公告)日：2023-12-19

申请号：US17989035

申请日：2022-11-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yuho Won ,  Nayoun Won ,  Sungwoo Hwang ,  Eun Joo Jang ,  Soo Kyung Kwon ,  Yong Wook Kim ,  Jihyun Min ,  Garam Park ,  Shang Hyeun Park ,  Hyo Sook Jang ,  Shin Ae Jun ,  Yong Seok Han

IPC: C09K11/08 ,  C08L57/10 ,  G02F1/13357 ,  C09K11/02 ,  C09K11/56 ,  C09K11/70 ,  C09K11/88 ,  H05B33/14 ,  H10K50/115 ,  H10K59/38 ,  B82Y40/00 ,  B82Y20/00 ,  G02F1/1335

CPC classification number: C09K11/0883 ,  C08L57/10 ,  C09K11/025 ,  C09K11/565 ,  C09K11/70 ,  C09K11/883 ,  G02F1/133617 ,  H05B33/14 ,  H10K50/115 ,  H10K59/38 ,  B82Y20/00 ,  B82Y40/00 ,  C08L2203/20 ,  G02F1/133614 ,  G02F2202/022 ,  G02F2202/102 ,  G02F2202/36

Abstract: A cadmium free quantum dot not including cadmium and including: a semiconductor nanocrystal core comprising indium and phosphorous, a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core and comprising zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell and comprising zinc and sulfur, a composition and composite including the same, and an electronic device.

公开(公告)号：US11796911B2

公开(公告)日：2023-10-24

申请号：US17204110

申请日：2021-03-17

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Samsung SDI Co., Ltd.

Inventor： Shin Ae Jun ,  Shang Hyeun Park ,  Hojeong Paek ,  Jonggi Kim ,  Hyeyeon Yang ,  Eun Joo Jang ,  Yong Seok Han

IPC: G03F7/00 ,  G03F7/033 ,  G02B5/20 ,  G02B5/22 ,  C09K11/02 ,  C09K11/08

CPC classification number: G03F7/0007 ,  C09K11/02 ,  C09K11/08 ,  G02B5/207 ,  G02B5/223 ,  G03F7/033

Abstract: A photosensitive composition including a quantum dot dispersion, a photopolymerizable monomer having a carbon-carbon double bond, and a photoinitiator, wherein the quantum dot dispersion includes an acid group-containing polymer and a plurality of quantum dots dispersed in the acid group-containing polymer, and wherein the acid group-containing polymer includes a copolymer of a monomer combination including a first monomer having a carboxylic acid group or a phosphonic acid group and a carbon-carbon double bond and a second monomer having a carbon-carbon double bond and a hydrophobic group and not having a carboxylic acid group and a phosphonic acid group.

公开(公告)号：US11725141B2

公开(公告)日：2023-08-15

申请号：US17166059

申请日：2021-02-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seonmyeong Choi ,  Eun Joo Jang ,  Hyo Sook Jang ,  Kun Su Park

IPC: C09K11/88 ,  C09K11/70 ,  C09K11/08 ,  H01L33/00 ,  H01L33/26 ,  H01L33/06 ,  H01L51/50 ,  B82Y40/00 ,  B82Y20/00

CPC classification number: C09K11/883 ,  C09K11/0883 ,  C09K11/703 ,  H01L33/002 ,  H01L33/06 ,  H01L33/26 ,  H01L51/502 ,  B82Y20/00 ,  B82Y40/00

Abstract: Quantum dots and electroluminescent device including the same. The quantum dots include an alloy core including a first semiconductor nanocrystal including indium (In), gallium (Ga), and phosphorous (P), and a semiconductor nanocrystal shell disposed on the alloy core, wherein the quantum dots do not include cadmium, wherein the quantum dots are configured to emit blue light having a maximum emission peak wavelength that is greater than or equal to about 440 nanometers (nm) and less than or equal to about 490 nm, wherein in the quantum dots, a mole ratio of gallium with respect to a sum of indium and gallium is greater than or equal to about 0.2:1 and less than or equal to about 0.75:1, and wherein the semiconductor nanocrystal shell includes a zinc chalcogenide.

公开(公告)号：US11690242B2

公开(公告)日：2023-06-27

申请号：US17688201

申请日：2022-03-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Moon Gyu Han ,  Kwanghee Kim ,  Heejae Lee ,  Eun Joo Jang ,  Dae Young Chung

IPC: H01L51/52 ,  C09K11/88 ,  H01L51/00 ,  H01L51/50

CPC classification number: H01L51/5278 ,  C09K11/883 ,  H01L51/0072 ,  H01L51/502

Abstract: Provided are a light emitting device includes a first electrode and a second electrode facing each other; an emissive layer disposed between the first electrode and the second electrode and a display device including the same. The emissive layer comprises: a first emission layer disposed on the first electrode and having a hole transporting property; a second emission layer and a third emission layer disposed on the first emission layer; wherein the second emission layer comprises an organic compound having a bipolar transport property and the third emission layer has a composition different from the first emission layer and the second emission layer; wherein the first emission layer, the second emission layer, and the third emission layer comprises a plurality of quantum dots, and wherein the first emission layer, the second emission layer, and the third emission layer are configured to emit light of a same color.

公开(公告)号：US11674079B2

公开(公告)日：2023-06-13

申请号：US17462428

申请日：2021-08-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jihyun Min ,  Eun Joo Jang ,  Yongwook Kim ,  Garam Park

IPC: C09K11/02 ,  C09K11/66 ,  C09K11/88 ,  C08K3/16 ,  C09K11/61 ,  H10K59/38 ,  H10K102/00 ,  B82Y20/00 ,  B82Y40/00 ,  H01L27/32

CPC classification number: C09K11/025 ,  C08K3/16 ,  C09K11/02 ,  C09K11/616 ,  C09K11/665 ,  C09K11/88 ,  C09K11/881 ,  C09K11/883 ,  B82Y20/00 ,  B82Y40/00 ,  C08K2201/001 ,  H01L27/322 ,  H01L2251/5369 ,  Y10S977/774 ,  Y10S977/896 ,  Y10S977/95

Abstract: A quantum dot having a perovskite crystal structure and including a compound represented by Chemical Formula 1:

ABX3+α  Chemical Formula 1

wherein, A is a Group IA metal selected from Rb, Cs, Fr, and a combination thereof, B is a Group IVA metal selected from Si, Ge, Sn, Pb, and a combination thereof, X is a halogen selected from F, Cl, Br, and I, BF4, or a combination thereof, and α is greater than 0 and less than or equal to about 3; and wherein the quantum dot has a size of about 1 nanometer to about 50 nanometers.

公开(公告)号：US11661550B2

公开(公告)日：2023-05-30

申请号：US17543197

申请日：2021-12-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung Woo Kim ,  Jin A Kim ,  Tae Hyung Kim ,  Jeong Hee Lee ,  Eun Joo Jang

IPC: C09K11/88 ,  C09K11/56 ,  H01L51/50

CPC classification number: C09K11/883 ,  C09K11/565 ,  H01L51/502

Abstract: A quantum dot comprising a core comprising a first semiconductor nanocrystal comprising zinc, selenium, and optionally tellurium; and a shell disposed on the core and comprising a second semiconductor nanocrystal having a different composition from the first semiconductor nanocrystal, and comprising zinc and at least one of sulfur and selenium, wherein the shell comprises at least three branches extending from the core, wherein at least one of the branches has a length of greater than or equal to about 2 nm, the quantum dot emits blue light comprising a maximum emission peak at a wavelength of less than or equal to about 470 nm, a full width at half maximum (FWHM) of the maximum emission peak is less than about 35 nm, and the quantum dot does not comprise cadmium.