公开(公告)号：US11133468B2

公开(公告)日：2021-09-28

申请号：US16451443

申请日：2019-06-25

Applicant: SAMSUNG ELECTRONICS CO., LTD

Inventor： Jaejun Chang ,  O Hyun Kwon ,  Tae Hyung Kim ,  Jhun Mo Son ,  Sang Jin Lee ,  Eun Joo Jang ,  Dae Young Chung

IPC: H01L51/00 ,  H01L51/50 ,  C09K11/88 ,  C09K11/02 ,  C09K11/66 ,  C09K11/74 ,  C09K11/59 ,  C09K11/65 ,  C09K11/08 ,  B82Y30/00

Abstract: A semiconductor-ligand composite, including a semiconductor nanocrystal and a ligand layer including an organic ligand coordinated on a surface of the semiconductor nanocrystal, wherein the organic ligand includes a compound represented by Chemical Formula 1, a compound represented by Chemical Formula 2 or a combination thereof, wherein Chemical Formula 1 and Chemical Formula 2 are given below and are the same as described in detail herein.

公开(公告)号：US11126028B2

公开(公告)日：2021-09-21

申请号：US15692906

申请日：2017-08-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G02F1/1335 ,  G02F1/13357 ,  G02B5/30 ,  H01L29/12 ,  H01L29/66 ,  H01L31/0352

Abstract: A photoluminescent liquid crystal display includes: a liquid crystal panel including a lower substrate, an upper substrate, a liquid crystal layer interposed between the upper and lower substrates, and a photoluminescent color filter layer disposed between the upper substrate and the liquid crystal layer; an optical device disposed on the upper substrate; a polarizing plate disposed under the lower substrate; and a backlight unit disposed under the polarizing plate and which emits blue light, where the photoluminescent color filter layer includes a first color filter which emits polarized red light, a second color filter which emits polarized green light, and a third color filter which emits polarized blue light, and the first color filter and the second color filter include a semiconductor nanocrystal-polymer composite.

公开(公告)号：US11091690B2

公开(公告)日：2021-08-17

申请号：US16431772

申请日：2019-06-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Soo Kyung Kwon ,  Yong Wook Kim ,  Jihyun Min ,  Eun Joo Jang

IPC: C09K11/02 ,  C09K11/62 ,  H01L51/50 ,  G02F1/13357 ,  B82Y20/00 ,  B82Y40/00 ,  G02F1/1335

Abstract: A quantum dot including a core including a quaternary alloy semiconductor nanocrystal and not including cadmium, a composition and a quantum dot polymer composite including the same, and an electronic device including the same.
The quaternary alloy semiconductor nanocrystal comprises indium (In), phosphorous (P), zinc (Zn), and selenium (Se), and in the core, a ratio of the zinc with respect to the indium is less than or equal to about 0.5:1 and in the core, a ratio of selenium with respect to zinc is less than or equal to about 0.6:1.

公开(公告)号：US11050033B2

公开(公告)日：2021-06-29

申请号：US16391692

申请日：2019-04-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kwanghee Kim ,  Oul Cho ,  Chan Su Kim ,  Tae Hyung Kim ,  Eun Joo Jang ,  Moon Gyu Han

IPC: H01L51/50 ,  C09K11/88 ,  H01L51/56 ,  C09K11/08 ,  C09K11/59 ,  C09K11/56 ,  C09K11/54 ,  C09K11/62 ,  C09K11/55 ,  C09K11/74 ,  C09K11/89 ,  C09K11/66 ,  C09K11/65 ,  C09K11/61 ,  C09K11/70 ,  C09K11/64

Abstract: A light emitting film including a plurality of quantum dots and an electronic device including the same. The plurality of quantum dots constitute at least a portion of a surface of the light emitting film, the plurality of quantum dots do not include cadmium, and the at least a portion of a surface of the light emitting film includes a metal halide bound to at least one quantum dot of the plurality of quantum dots.

公开(公告)号：US10854836B2

公开(公告)日：2020-12-01

申请号：US16530253

申请日：2019-08-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Ho Kim ,  Won Sik Yoon ,  Jeong Hee Lee ,  Eun Joo Jang ,  Oul Cho

IPC: H01L51/50 ,  H01L51/52 ,  H01L51/56 ,  H01L27/32

Abstract: 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 including a quantum dot, an electron auxiliary layer disposed between the emissive layer and the second electrode and including a plurality of nanoparticles, and a polymer layer between a portion of the second electrode and the electron auxiliary layer, wherein the nanoparticles include a metal oxide including zinc, wherein the second electrode has a first surface facing a surface of the electron auxiliary layer and a second surface opposite to the first surface, and the polymer layer is disposed on a portion of the second surface and a portion of the surface of the electron auxiliary layer, and wherein the polymer layer includes a polymerization product of a thiol compound and an unsaturated compound having at least two carbon-carbon unsaturated bonds.

公开(公告)号：US10782611B2

公开(公告)日：2020-09-22

申请号：US15900519

申请日：2018-02-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyeyeon Yang ,  Eun Joo Jang ,  Hyo Sook Jang ,  Shin Ae Jun

IPC: G03F7/028 ,  G02B5/20 ,  G03F7/004 ,  C09K11/70 ,  C09K11/77 ,  C08F220/06 ,  G03F7/00 ,  G03F7/16 ,  G03F7/20 ,  G03F7/32 ,  G03F7/40 ,  G03F7/031 ,  G02F1/13357 ,  C09K11/02 ,  C09D4/00 ,  C08K3/30 ,  C08K3/32 ,  C08K9/10 ,  B82Y40/00 ,  B82Y20/00

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 plurality of quantum dots; a luminescent material other than a quantum dot; a carboxylic acid group containing binder; a photopolymerizable monomer having a carbon-carbon double bond; and a photoinitiator, and the luminescent material comprises a fluorophore, a nanosized inorganic phosphor, or a combination thereof.

公开(公告)号：US10749130B2

公开(公告)日：2020-08-18

申请号：US16038752

申请日：2018-07-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chan Su Kim ,  Tae Ho Kim ,  Kun Su Park ,  Eun Joo Jang

IPC: H01L51/52 ,  H01L51/50 ,  H01L51/56

Abstract: An electroluminescent device comprising a first electrode; a hole transport layer disposed on the first electrode; an emission layer disposed on the hole transport layer and comprising a plurality of light emitting particles; an electron transport layer disposed on the emission layer and comprising a metal oxide particle-organic polymer composite comprising a plurality of metal oxide particles and an organic polymer; and a second electrode disposed on the electron transport layer, wherein the organic polymer is present in the metal oxide particle-organic polymer composition in an amount of about 7 weight percent to about 30 weight percent based on a total weight of the electron transport layer.

公开(公告)号：US10723942B2

公开(公告)日：2020-07-28

申请号：US15387107

申请日：2016-12-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Shin Ae Jun ,  Taekhoon Kim ,  Garam Park ,  Yong Seok Han ,  Eun Joo Jang ,  Hyo Sook Jang ,  Tae Won Jeong ,  Shang Hyeun Park

IPC: C09K11/02 ,  C09K11/88 ,  C09K11/70 ,  C08K3/30 ,  C08K3/32 ,  H01L51/50 ,  G02F1/1335 ,  G02F1/13357 ,  B82Y40/00 ,  B82Y20/00 ,  B82Y30/00

Abstract: A quantum dot-polymer composite including a polymer matrix; and a plurality of quantum dots dispersed in the polymer matrix, wherein the quantum dot includes a core including a first semiconductor material; and a shell including a second semiconductor material disposed on the core, wherein the quantum dot is cadmium-free, wherein the shell has at least two branches and at least one valley portion connecting the at least two branches, and wherein the first semiconductor material is different from the second semiconductor material.

公开(公告)号：US10711193B2

公开(公告)日：2020-07-14

申请号：US16205323

申请日：2018-11-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yongwook Kim ,  Sungwoo Hwang ,  Soo Kyung Kwon ,  Yuho Won ,  Eun Joo Jang ,  Hyo Sook Jang

IPC: C09K11/88 ,  C09K11/02 ,  H01L51/50 ,  H01L27/32 ,  B82Y40/00 ,  B82Y20/00 ,  G02F1/133

Abstract: A quantum dot, a method of producing the same, a quantum dot polymer composite including the same, and an electronic device. The quantum dot includes a core including a first semiconductor nanocrystal and a shell disposed on the core, the shell including a second semiconductor nanocrystal and a metal dopant, wherein the first semiconductor nanocrystal includes a Group II-VI compound, a Group III-V compound, or a combination thereof, the second semiconductor nanocrystal includes a Group II-VI compound, and the metal dopant includes hafnium, zirconium, titanium, or a combination thereof.

公开(公告)号：US10585226B2

公开(公告)日：2020-03-10

申请号：US15471033

申请日：2017-03-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Oul Cho ,  Eun Joo Jang ,  Hyun A Kang ,  Tae Hyung Kim ,  Jeong Hee Lee

IPC: F21V8/00 ,  H01L33/50

Abstract: A light conversion device includes a frame through which incident light is received from a light source and converted light is emitted from the light conversion device, the frame including: an opening through which light of a first color is received from the light source and from which light of a second color is emitted from the light conversion device, and a wall which surrounds the opening, a substrate in the opening and supported by the wall, a light conversion layer which is disposed on the substrate and receives the light of the first color from the light source, the light conversion layer including a light converting particle which converts the light of the first color to the light of the second color, a first inorganic layer disposed on the light conversion layer, and a first organic layer disposed on the first inorganic layer.