公开(公告)号：US11870018B2

公开(公告)日：2024-01-09

申请号：US17523162

申请日：2021-11-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Shang Hyeun Park ,  Deukseok Chung ,  Tae Gon Kim ,  Min Jong Bae ,  Shin Ae Jun

IPC: H01L33/50 ,  H01L25/16

CPC classification number: H01L33/505 ,  H01L25/167 ,  H01L33/504 ,  H01L2933/0041 ,  H01L2933/0091

Abstract: A display panel including a wavelength conversion structure that includes a base structure including partition walls that define a first space and a second space, a first quantum dot composite disposed in the first space, and a second quantum dot composite disposed in the second space. The height of the partition wall is greater than or equal to about 5 micrometers and less than or equal to about 50 micrometers, and the first quantum dot composite provides a first top surface and the second quantum dot composite provides a second top surface. A production method for making the wavelength conversion structure uses a first ink composition that includes first quantum dots and a first matrix, and a second ink composition that includes second quantum dots and a second matrix.

公开(公告)号：US11867988B2

公开(公告)日：2024-01-09

申请号：US17409153

申请日：2021-08-23

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

Inventor： Deukseok Chung ,  Shin Ae Jun ,  Tae Won Jeong ,  Yong Seok Han

IPC: G02F1/017 ,  G02F1/1362 ,  G02F1/1335 ,  G02F1/13357 ,  G03F7/00 ,  G03F7/033 ,  G03F7/004 ,  C09K11/62 ,  C09K11/70 ,  C09K11/02 ,  B32B37/06 ,  H01L31/0352

CPC classification number: G02F1/017 ,  C09K11/025 ,  C09K11/623 ,  C09K11/70 ,  G02F1/133533 ,  G02F1/133617 ,  G02F1/136286 ,  G03F7/0007 ,  G03F7/0047 ,  G03F7/033 ,  B32B37/06 ,  B32B2457/20 ,  B32B2457/202 ,  B32B2457/206 ,  C09K2323/00 ,  C09K2323/03 ,  G02F1/01791 ,  G02F2201/50 ,  H01L31/035209 ,  H01L31/035218

Abstract: A layered structure including a transparent substrate; a photoluminescent layer disposed on the transparent substrate and a pattern of a quantum dot polymer composite; and a capping layer disposed on the photoluminescent layer and including an inorganic material, a method of producing the same, a liquid crystal display including the same. The quantum dot polymer composite includes a polymer matrix; and a plurality of quantum dots in the polymer matrix, the pattern of the quantum dot polymer composite includes at least one repeating section and the repeating section includes a first section configured to emit light of a first peak wavelength, the inorganic material is disposed on at least a portion of a surface of the repeating section, and the inorganic material includes a metal oxide, a metal nitride, a metal oxynitride, a metal sulfide, or a combination thereof.

公开(公告)号：US11815800B2

公开(公告)日：2023-11-14

申请号：US17479484

申请日：2021-09-20

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

Inventor： Jonggi Kim ,  Shang Hyeun Park ,  Shin Ae Jun ,  Hojeong Paek

IPC: G03F7/004 ,  G03F7/20 ,  G03F7/32 ,  G03F7/16 ,  G03F7/027 ,  G03F7/028 ,  G02B5/20 ,  G03F7/00 ,  G03F7/033

CPC classification number: G03F7/0007 ,  G02B5/206 ,  G03F7/0047 ,  G03F7/027 ,  G03F7/028 ,  G03F7/033 ,  G03F7/162 ,  G03F7/20 ,  G03F7/322

Abstract: A photosensitive composition includes a plurality of quantum dots including an organic ligand on the surface thereof; a binder; a photopolymerizable monomer composition; photoinitiator; and a solvent, wherein the photopolymerizable monomer includes a main monomer having 1 to 6 carbon-carbon double bonds, a first accessory monomer having 8 to 20 carbon-carbon double bonds, and a second accessory monomer represented by Chemical Formula A; and a method of preparing the photosensitive composition and a quantum dot-polymer composite pattern prepared therefrom are provided:

R1O-(L1)m-L3-A-L4-(L2)n-OR2  Chemical Formula A

wherein, A, L1, L2, L3, L4, R1, and R2 are the same as defined herein.

公开(公告)号：US11753588B2

公开(公告)日：2023-09-12

申请号：US17092368

申请日：2020-11-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Taekhoon Kim ,  Nayoun Won ,  Tae Gon Kim ,  Mi Hye Lim ,  Shin Ae Jun ,  Shang Hyeun Park

IPC: C09K11/88 ,  C09K11/02 ,  H10K50/115 ,  B82Y15/00 ,  B82Y40/00 ,  C01B25/08

CPC classification number: C09K11/883 ,  C09K11/02 ,  H10K50/115 ,  B82Y15/00 ,  B82Y40/00 ,  C01B25/087

Abstract: A quantum dot-polymer composite including a polymer matrix; and core-shell quantum dots dispersed in the polymer matrix, wherein the core-shell quantum dots include a semiconductor nanocrystal core including indium, zinc, and phosphorus and a semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the shell including zinc, selenium, and sulfur. The core-shell quantum dots do not include cadmium, the core-shell quantum dots are configured to emit green light, the core-shell quantum dots have a mole ratio of phosphorus to indium of greater than or equal to about 0.75, and the core-shell quantum dots have a mole ratio of zinc to indium of greater than or equal to about 35, and a method of producing the core-shell quantum dots, and a display device including a light emitting element that includes the quantum dot-polymer composite.

公开(公告)号：US11700751B2

公开(公告)日：2023-07-11

申请号：US17372976

申请日：2021-07-12

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: H10K59/122 ,  H10K50/115 ,  H10K50/854 ,  H10K59/38

CPC classification number: H10K59/122 ,  H10K50/115 ,  H10K50/854 ,  H10K59/38

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：US11567360B2

公开(公告)日：2023-01-31

申请号：US16989794

申请日：2020-08-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyun A Kang ,  Eun Joo Jang ,  Hyo Sook Jang ,  Shin Ae Jun

IPC: G02F1/1335 ,  C09D123/08 ,  C09K11/02 ,  G02F1/13357 ,  C09K11/56 ,  C09K11/70 ,  C09K11/88 ,  C08K9/08

Abstract: A backlight unit for a liquid crystal display device, the backlight unit including: an light emitting diode (“LED”) light source; a light conversion layer disposed separate from the LED light source to convert light emitted from the LED light source to white light and to provide the white light to the liquid crystal panel; and a light guide panel disposed between the LED light source and the light conversion layer, wherein the light conversion layer includes a semiconductor nanocrystal and a polymer matrix, and wherein the polymer matrix includes a first polymerized polymer of a first monomer including at least two thiol (—SH) groups, each located at a terminal end of the first monomer, and a second monomer including at least two unsaturated carbon-carbon bonds, each located at a terminal end of the second monomer.

公开(公告)号：US11485904B2

公开(公告)日：2022-11-01

申请号：US15900496

申请日：2018-02-20

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

Inventor： Deukseok Chung ,  Tae Won Jeong ,  Tae Gon Kim ,  Shin Ae Jun

IPC: C09K11/02 ,  C08F220/06 ,  C08G77/04 ,  C08K3/32 ,  C08K3/30 ,  C08K9/10 ,  G03F7/16 ,  G03F7/20 ,  G03F7/32 ,  G03F7/40 ,  G03F7/004 ,  G03F7/033 ,  G02F1/13357 ,  G02F1/1335 ,  C09K11/70 ,  G03F7/00 ,  C09D4/00 ,  C09D133/02 ,  C08F22/10 ,  B82Y40/00 ,  B82Y20/00 ,  C08K5/00 ,  C08G77/20

Abstract: A layered structure including a luminescent layer including a quantum dot polymer composite pattern; an inorganic layer disposed on the luminescent layer, the inorganic layer including a metal oxide, a metal nitride, a metal oxynitride, a metal sulfide, or a combination thereof; and an organic layer being disposed between the luminescent layer and the inorganic layer, the organic layer including an organic polymer, a method of producing the same, and a liquid crystal display including the same. The quantum dot polymer composite pattern includes a repeating section including a polymer matrix; and a plurality of quantum dots (e.g., dispersed) in the polymer matrix, the repeating unit including a first section configured to emit light of a first light, and wherein the inorganic layer is disposed on at least a portion of a surface of the repeating section.

公开(公告)号：US11226447B2

公开(公告)日：2022-01-18

申请号：US16297051

申请日：2019-03-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Hyung Kim ,  Eun Joo Jang ,  Shin Ae Jun ,  Hyun A Kang ,  Yongwook Kim ,  Na Youn Won ,  Hyo Sook Jang

IPC: G02F1/13357 ,  G02F1/1335 ,  F21V8/00

Abstract: A light source includes a light emitting element which emits light, and a light conversion layer which converts the light emitted from the light emitting element into white light and emits the white light, where the light conversion layer includes a resin and a quantum dot material mixed with the resin, and a red apex of a color region of the white light is positioned in a region of 0.65

公开(公告)号：US11180695B2

公开(公告)日：2021-11-23

申请号：US16914601

申请日：2020-06-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Gon Kim ,  Seonmyeong Choi ,  Shin Ae Jun ,  Hyeyeon Yang

IPC: C09K11/88 ,  C09K11/08 ,  C09K11/02 ,  C09K11/62 ,  B82Y40/00 ,  B82Y20/00

Abstract: 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), gallium (Ga), 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 the quantum dot emits green light, wherein in the quantum dot, a mole ratio of gallium with respect to a sum of indium and gallium is less than or equal to about 0.5:1, and 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：US11142685B2

公开(公告)日：2021-10-12

申请号：US16245544

申请日：2019-01-11

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: H01L51/50 ,  C09K11/08 ,  C08L57/10 ,  G02F1/13357 ,  H01L27/32 ,  C09K11/02 ,  C09K11/56 ,  C09K11/70 ,  C09K11/88 ,  H05B33/14 ,  B82Y40/00 ,  B82Y20/00 ,  G02F1/1335

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.