公开(公告)号：US12157848B2

公开(公告)日：2024-12-03

申请号：US18074570

申请日：2022-12-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyeyeon Yang ,  Garam Park ,  Shin Ae Jun ,  Tae Gon Kim ,  Taekhoon Kim

IPC: C09K11/70 ,  C09K11/02 ,  C09K11/08 ,  C09K11/54 ,  C09K11/56 ,  C09K11/62 ,  G02F1/017 ,  G02F1/13357 ,  H10K59/12 ,  H10K59/38 ,  B82Y20/00 ,  B82Y40/00

Abstract: A quantum dot including a multi-component core including a first semiconductor nanocrystal including indium (In), zinc (Zn), and phosphorus (P) and a second semiconductor nanocrystal disposed on the first semiconductor nanocrystal, the second semiconductor nanocrystal including gallium (Ga) and phosphorus (P) wherein the quantum dot is cadmium-free and emits green light, a mole ratio (P:In) of phosphorus relative to indium is greater than or equal to about 0.6:1 and less than or equal to about 1.0, and a mole ratio (P:(In+Ga)) of phosphorus relative to indium and gallium is greater than or equal to about 0.5:1 and less than or equal to about 0.8:1, a quantum dot-polymer composite pattern including the same, and a display device.

公开(公告)号：US11835856B2

公开(公告)日：2023-12-05

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：US10324373B2

公开(公告)日：2019-06-18

申请号：US15924814

申请日：2018-03-19

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  SAMSUNG DISPLAY CO., LTD. ,  SAMSUNG SDI CO., LTD.

Inventor： Hyeyeon Yang ,  Tae Hyung Kim ,  Shang Hyeun Park ,  Shin Ae Jun ,  Yong Seok Han ,  Eun Joo Jang ,  Deukseok Chung

IPC: G03F7/028 ,  G03F7/00 ,  G03F7/16 ,  G03F7/20 ,  G03F7/32 ,  G03F7/40 ,  G03F7/033 ,  G03F7/031 ,  G03F7/004 ,  G03F7/027 ,  G03F7/105

Abstract: A photosensitive composition and a quantum dot-polymer composite pattern formed from the photosensitive composition are disclosed, and the photosensitive composition includes: a plurality of quantum dots; a color filter material including an absorption dye, an absorption pigment, or a combination thereof; a polymer binder; a photopolymerizable monomer having a carbon-carbon double bond; a photoinitiator; and a solvent, wherein in a normalized photoluminescence spectrum of the quantum dot and a normalized ultraviolet-visible absorption spectrum of the color filter material, a photoluminescence peak wavelength (PL peak wavelength) of the quantum dot and a wavelength of maximum absorbance of the color filter material do not overlap with each other, and the color filter material is included in an amount of less than or equal to 1 part by weight per 10 parts by weight of the plurality of quantum dots.

公开(公告)号：US10246634B2

公开(公告)日：2019-04-02

申请号：US15333417

申请日：2016-10-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyeyeon Yang ,  Shang Hyeun Park ,  Shin Ae Jun ,  Eun Joo Jang

IPC: G03F7/00 ,  B82Y99/00 ,  C09K11/02 ,  C09K11/70 ,  G03F7/004 ,  G03F7/033 ,  G03F7/105

Abstract: A photosensitive composition including a quantum dot complex having a polymeric outer layer, a carboxylic acid group-containing binder, a photopolymerizable monomer having a carbon-carbon double bond, a photoinitiator, and a solvent, wherein the polymeric outer layer includes a copolymer including: a first repeating unit having a moiety capable of interacting with a surface of the quantum dot, an organic ligand compound bonded to the surface of the quantum dot, or a combination thereof, and a second repeating unit having a reactive moiety.

公开(公告)号：US09921472B2

公开(公告)日：2018-03-20

申请号：US15295332

申请日：2016-10-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyeyeon Yang ,  Tae Hyung Kim ,  Shang Hyeun Park ,  Shin Ae Jun ,  Yong Seok Han ,  Eun Joo Jang ,  Deukseok Chung

IPC: G03F7/028 ,  G03F7/00 ,  G03F7/16 ,  G03F7/20 ,  G03F7/32 ,  G03F7/40 ,  G03F7/033 ,  G03F7/031 ,  G03F7/004

CPC classification number: G03F7/0007 ,  G03F7/0045 ,  G03F7/0047 ,  G03F7/027 ,  G03F7/028 ,  G03F7/031 ,  G03F7/033 ,  G03F7/105 ,  G03F7/162 ,  G03F7/168 ,  G03F7/2002 ,  G03F7/322 ,  G03F7/40

Abstract: A photosensitive composition and a quantum dot-polymer composite pattern formed from the photosensitive composition are disclosed, and the photosensitive composition includes: a plurality of quantum dots; a color filter material including an absorption dye, an absorption pigment, or a combination thereof; a polymer binder; a photopolymerizable monomer having a carbon-carbon double bond; a photoinitiator; and a solvent, wherein in a normalized photoluminescence spectrum of the quantum dot and a normalized ultraviolet-visible absorption spectrum of the color filter material, a photoluminescence peak wavelength (PL peak wavelength) of the quantum dot and a wavelength of maximum absorbance of the color filter material do not overlap with each other, and the color filter material is included in an amount of less than or equal to 1 part by weight per 10 parts by weight of the plurality of quantum dots.

公开(公告)号：US11788005B2

公开(公告)日：2023-10-17

申请号：US17824225

申请日：2022-05-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Gon Kim ,  Shin Ae Jun ,  Taek hoon Kim ,  Hyeyeon Yang ,  Nayoun Won ,  Jongmin Lee ,  Mi Hye Lim

IPC: C09K11/70 ,  C08F220/38 ,  C09K11/02 ,  C09K11/88 ,  H01L33/00 ,  H01L33/50 ,  B82Y20/00

CPC classification number: C09K11/70 ,  C08F220/382 ,  C09K11/025 ,  C09K11/88 ,  C09K11/883 ,  H01L33/005 ,  H01L33/502 ,  B82Y20/00 ,  H01L2933/0025 ,  H01L2933/0041

Abstract: Quantum dots and a composite and a display device including the quantum dots. The quantum dots comprise a semiconductor nanocrystal core comprising indium and phosphorous, and optionally zinc, a semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell comprising zinc, selenium, and sulfur, wherein the quantum dots are configured to exhibit a maximum photoluminescence peak in a green light wavelength region, and in an ultraviolet-visible (UV-Vis) absorption spectrum of the quantum dots, a ratio A450/Afirst, of an absorption value at 450 nm to an absorption value at a first excitation peak is greater than or equal to about 0.7, and a valley depth (VD) defined by the following equation is greater than or equal to about 0.4:

(Absfirst−Absvalley)/Absfirst=VD



wherein, Absfirst is an absorption value at the first absorption peak wavelength and Absvalley is an absorption value at a lowest point of the valley adjacent to the first absorption peak, and
wherein the maximum photoluminescence peak of the quantum dots has a full width at half maximum of less than or equal to 40 nanometers.

公开(公告)号：US11530353B2

公开(公告)日：2022-12-20

申请号：US16914598

申请日：2020-06-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyeyeon Yang ,  Garam Park ,  Shin Ae Jun ,  Tae Gon Kim ,  Taekhoon Kim

IPC: C09K11/70 ,  H01L27/32 ,  G02F1/13357 ,  C09K11/08 ,  C09K11/02 ,  B82Y40/00 ,  B82Y20/00

Abstract: A quantum dot including a multi-component core including a first semiconductor nanocrystal including indium (In), zinc (Zn), and phosphorus (P) and a second semiconductor nanocrystal disposed on the first semiconductor nanocrystal, the second semiconductor nanocrystal including gallium (Ga) and phosphorus (P) wherein the quantum dot is cadmium-free and emits green light, a mole ratio (P:In) of phosphorus relative to indium is greater than or equal to about 0.6:1 and less than or equal to about 1.0, and a mole ratio (P:(In+Ga)) of phosphorus relative to indium and gallium is greater than or equal to about 0.5:1 and less than or equal to about 0.8:1, a quantum dot-polymer composite pattern including the same, and a display device.

公开(公告)号：US10983432B2

公开(公告)日：2021-04-20

申请号：US15241208

申请日：2016-08-19

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 ,  G02B5/22 ,  G02B5/20 ,  C09K11/08 ,  C09K11/02 ,  G03F7/004

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：US09705094B2

公开(公告)日：2017-07-11

申请号：US14950294

申请日：2015-11-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyeyeon Yang ,  Youngjun Yun ,  Suk Gyu Hahm ,  Jeong Il Park ,  Jong Won Chung ,  Sang Yoon Lee

IPC: C07D487/04 ,  H01L51/00 ,  H01L51/05

CPC classification number: H01L51/0072 ,  C07D487/04 ,  H01L51/0545 ,  H01L51/0558 ,  Y02E10/549

Abstract: An organic semiconductor compound represented by Chemical Formula 1 is highly fused due to fusion of greater than or equal to 4 rings, and has smooth intermolecular charge transfer due to relatively high planarity.