公开(公告)号：US20210284908A1

公开(公告)日：2021-09-16

申请号：US17199616

申请日：2021-03-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Gon KIM ,  Jongmin LEE ,  Jooyeon AHN ,  Hyeyeon YANG ,  Shin Ae JUN

IPC: C09K11/70 ,  H01L27/32 ,  C09K11/02

Abstract: A quantum dot, a production method thereof, and a quantum dot composite and a device including the same are disclosed, wherein the quantum dot includes an alloy semiconductor nanocrystal including indium (In), gallium, zinc (Zn), phosphorus (P), and sulfur (S), and in the quantum dot, a mole ratio of gallium with respect to indium (Ga:In) is greater than or equal to about 0.2:1, a mole ratio of phosphorus with respect to indium (P:In) is greater than or equal to about 0.95:1, the quantum dot does not include cadmium, and in an UV-Vis absorption spectrum of the quantum dot(s), a first absorption peak is present in a range of less than or equal to about 520 nm.

公开(公告)号：US20210240077A1

公开(公告)日：2021-08-05

申请号：US17234126

申请日：2021-04-19

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

Inventor： Shang Hyeun PARK ,  Hojeong PAEK ,  Jonggi KIM ,  Nayoun WON ,  Shin Ae JUN

IPC: G03F7/004 ,  G03F7/031 ,  G03F7/027 ,  G03F7/00 ,  G03F7/029 ,  G03F7/033

Abstract: A photosensitive composition including: a plurality of quantum dots, wherein the quantum dot includes an organic ligand bound to a surface of the quantum dot; a photoinitiator; a binder including a carboxylic acid group; a photopolymerizable monomer having a carbon-carbon double bond; and a solvent, wherein the photoinitiator includes a first photoinitiator including an oxime compound and a second photoinitiator including at least one selected from a phosphine oxide compound and an amino ketone compound.

公开(公告)号：US20210200082A1

公开(公告)日：2021-07-01

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 PARK ,  Jonggi KIM ,  Hyeyeon YANG ,  Eun Joo JANG ,  Yong Seok HAN

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

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：US20200243622A1

公开(公告)日：2020-07-30

申请号：US16750106

申请日：2020-01-23

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

Inventor： Deukseok CHUNG ,  Sung Hun LEE ,  Tae Gon KIM ,  Shin Ae JUN

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52

Abstract: A display device includes a first electrode, a pixel define layer disposed on the first electrode, the pixel define layer including an opening, an organic emission layer disposed on the pixel define layer, the organic emission layer in electrical communication with the first electrode through the opening, a second electrode disposed on the organic emission layer, a light recycle layer disposed on the second electrode, and a color filter layer disposed on the light recycle layer, the color filter layer including a quantum dot, wherein a width of the organic emission layer is longer than a width of the color filter layer.

公开(公告)号：US20200172806A1

公开(公告)日：2020-06-04

申请号：US16507406

申请日：2019-07-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Garam PARK ,  Tae Gon KIM ,  Jooyeon AHN ,  Ji-Yeong KIM ,  Nayoun WON ,  Shin Ae JUN

IPC: C09K11/88 ,  C09K11/02 ,  H01L27/32 ,  G02F1/1335

Abstract: Disclosed are a quantum dot and a quantum dot-polymer composite and a device including the same, wherein the quantum dot includes a semiconductor nanocrystal core including indium (In) and phosphorous (P), a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc and sulfur, wherein the quantum dot does not include cadmium, wherein in the quantum dot, a mole ratio of sulfur with respect to selenium is less than or equal to about 2.5:1.

公开(公告)号：US20190310549A1

公开(公告)日：2019-10-10

申请号：US16442984

申请日：2019-06-17

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

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 parts by weight of the plurality of quantum dots.

公开(公告)号：US20190140113A1

公开(公告)日：2019-05-09

申请号：US16234694

申请日：2018-12-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Shin Ae JUN ,  Eun Joo JANG ,  Soo Kyung KWON ,  Taek Hoon KIM ,  Won Joo LEE

IPC: H01L31/0296 ,  H01L31/0304 ,  H01L31/0352

Abstract: A nanocrystal including a core including a Group III element and a Group V element, and a monolayer shell on the surface of the core, the shell including a compound of the formula ZnSexS(1-x), wherein 0≤x≤1, and wherein an average mole ratio of Se:S in the monolayer shell ranges from about 2:1 to about 20:1.

公开(公告)号：US20190006556A1

公开(公告)日：2019-01-03

申请号：US16111848

申请日：2018-08-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Garam PARK ,  Tae Hyung KIM ,  Eun Joo JANG ,  Hyo Sook JANG ,  Shin Ae JUN ,  Yongwook KIM ,  Taekhoon KIM ,  Jihyun MIN ,  Yuho WON

IPC: H01L33/04 ,  C09K11/88 ,  C09K11/70 ,  C09K11/61 ,  C09K11/02 ,  H01L33/32 ,  H01L33/30 ,  H01L33/28 ,  H01L33/24 ,  H01L33/34

CPC classification number: H01L33/04 ,  C09K11/025 ,  C09K11/615 ,  C09K11/70 ,  C09K11/883 ,  H01L33/24 ,  H01L33/28 ,  H01L33/30 ,  H01L33/32 ,  H01L33/34

Abstract: A quantum dot includes a core-shell structure including a core including a first semiconductor nanocrystal and a shell disposed on the core, and including a material at least two different halogens, and the quantum dot does not include cadmium.

公开(公告)号：US20180239246A1

公开(公告)日：2018-08-23

申请号：US15900536

申请日：2018-02-20

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

Inventor： Shang Hyeun PARK ,  Shin Ae JUN

IPC: G03F7/004 ,  G03F7/16 ,  G03F7/20 ,  G03F7/32 ,  G03F7/40 ,  G03F7/031 ,  C09K11/02 ,  C09K11/70 ,  C09K11/56 ,  G03F7/00

Abstract: A photosensitive composition, a quantum dot polymer composite pattern prepared therefrom, and a layered structure and an electronic device including the same. The photosensitive composition includes a quantum dot; a carboxylic acid group-containing binder; a multi-thiol compound including a thiol group at each terminal end of the multi-thiol compound; a photopolymerizable monomer including a carbon-carbon double bond; a metal oxide fine particle; a polymeric stabilizer; a photoinitiator; and a solvent, wherein the polymeric stabilizer includes a polymer including —RO—, —R1COO—, —R1OCO—, —CR1R2—CAR—, —OCONH—R—NHCOO—R′—, or a combination thereof, as a repeating unit.

公开(公告)号：US20180210335A1

公开(公告)日：2018-07-26

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

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.