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公开(公告)号:US20170082879A1
公开(公告)日:2017-03-23
申请号:US15366579
申请日:2016-12-01
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Chul Ho JUNG , Hyun A KANG , Soo Kyung KWON , Won Joo LEE , Eun Joo JANG , Hyo Sook JANG , Shin Ae JUN , Oul CHO , In Taek HAN
IPC: G02F1/1335 , F21V8/00
CPC classification number: G02F1/1336 , G02B6/005 , G02F1/133615 , G02F2001/133614 , G02F2202/32 , G02F2202/36 , Y10T428/1036 , Y10T428/24612 , Y10T428/24802 , Y10T428/31507 , Y10T428/31511 , Y10T428/31551 , Y10T428/31565 , Y10T428/31587 , Y10T428/31663 , Y10T428/31721 , Y10T428/31797 , Y10T428/31862 , Y10T428/31913 , Y10T428/31917 , Y10T428/31938 , Y10T428/31942
Abstract: A film for a backlight unit including a semiconductor nanocrystal-polymer composite film including a semiconductor nanocrystal and a matrix polymer in which the semiconductor nanocrystal is dispersed, wherein the matrix polymer is a polymer produced by a polymerization of a multifunctional photo-curable oligomer, a mono-functional photo-curable monomer, and a multifunctional photo-curable cross-linking agent, the multifunctional photo-curable oligomer has an acid value of less than or equal to about 0.1 mg of KOH/g, and a content (A1) of a first structural unit derived from the multifunctional photo-curable oligomer, a content (A2) of a second structural unit derived from the mono-functional photo-curable monomer, and a content (A3) of a third structural unit derived from the multifunctional photo-curable cross-linking agent satisfy Equation 1: A1
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公开(公告)号:US20140131740A1
公开(公告)日:2014-05-15
申请号:US14059594
申请日:2013-10-22
Applicant: Samsung Electronics Co., Ltd.
Inventor: Hyun A. KANG , Oul CHO , Eun Joo JANG , Hyo Sook JANG , Shin Ae JUN , Soo Kyung KWON , Won Joo LEE
IPC: H01L33/26
CPC classification number: C09K11/02 , C09K11/883 , H01L33/501 , H01L33/502 , H01L2224/48091 , Y02B20/181 , H01L2924/00014
Abstract: A light emitting device including: a blue light source; a phosphor; and a semiconductor nanocrystal, and emits white light having a R1-R8 average color rendering index (“CRI”) of greater than or equal to about 90, and a R9 red color rendering index (R9) of greater than or equal to about 90.
Abstract translation: 一种发光器件,包括:蓝色光源; 磷光体 和半导体纳米晶体,并且发射具有大于或等于约90的R1-R8平均显色指数(“CRI”)的白光和大于或等于约90的R9红色显色指数(R9) 。
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公开(公告)号:US20230323204A1
公开(公告)日:2023-10-12
申请号:US18209563
申请日:2023-06-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Seon-Yeong KIM , Yong Wook KIM , Soo Kyung KWON , Ji-Yeong KIM , Sungwoo HWANG
CPC classification number: C09K11/883 , C01G9/006 , C01B19/04 , C09K11/703 , C09K11/70 , C09K11/7414 , H10K50/115 , B82Y40/00 , B82Y20/00 , H10K2102/00 , C01P2006/60 , C01P2004/64
Abstract: A cadmium free quantum dot or a population thereof or a device including the same, wherein the cadmium free quantum dot includes a core (or a semiconductor nanocrystal particle) including a first semiconductor including a Group IIB-VI compound and a shell (or a coating) disposed on the core (or the semiconductor nanocrystal particle) including a Group IIB-V compound and exhibits a quantum efficiency of about 60% or higher.
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公开(公告)号:US20230313031A1
公开(公告)日:2023-10-05
申请号:US18310830
申请日:2023-05-02
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Soo Kyung KWON , Yong Wook KIM , Jihyun MIN , Eun Joo JANG
IPC: C09K11/02 , C09K11/62 , G02F1/13357 , H10K50/115
CPC classification number: C09K11/025 , C09K11/623 , G02F1/133615 , G02F1/133617 , H10K50/115 , B82Y20/00 , G02F2202/36
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:US20230138027A1
公开(公告)日:2023-05-04
申请号:US18051077
申请日:2022-10-31
Applicant: Samsung Electronics Co., Ltd.
Inventor: Soo Kyung KWON , Yongwook KIM , Eun Joo JANG
Abstract: A display panel, including a light emitting panel including at least first and second light emitting units; and a color conversion panel including a surface opposite a surface of the light emitting panel and a color conversion layer including a first and second color conversion region and a partition wall defining the first and second color conversion region, wherein the first and second light emitting units are configured to provide the first color conversion region and the second color conversion region, respectively, with high energy incident light, wherein the first color conversion region includes a first semiconductor nanoparticle-polymer composite including a first polymer matrix including a polymer including a unit having a carboxyl group or an anion form of a carboxyl group, and further including, dispersed in the polymer matrix, first semiconductor nanoparticles an additional metal substance including a group IIB metal, a group IIIA metal, or a combination thereof.
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公开(公告)号:US20230029597A1
公开(公告)日:2023-02-02
申请号:US17875208
申请日:2022-07-27
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Yong Wook KIM , Eun Joo JANG , Soo Kyung KWON , Seon-Yeong KIM , Ji-Yeong KIM , Sungwoo HWANG
Abstract: A display panel includes a light emitting panel including a light emitting unit; and a color conversion panel. The color conversion panel includes a color conversion layer including a color conversion region including semiconductor nanoparticles, and a partition wall defining the color conversion region. An optical diffuser is between the light emitting unit and the color conversion region to cover a light extraction surface of the light emitting unit. A length of the light extraction surface of the light emitting unit is greater than or equal to about 500 nm and less than or equal to about 100 μm and a ratio of a length of the optical diffuser to the length of the light extraction surface of the light emitting unit is greater than or equal to about 1.4:1 and less than or equal to about 60:1.
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公开(公告)号:US20220119707A1
公开(公告)日:2022-04-21
申请号:US17502667
申请日:2021-10-15
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Sungwoo HWANG , Yong Wook KIM , Soo Kyung KWON , Seon-Yeong KIM , Ji-Yeong KIM
Abstract: A cadmium free quantum dot including a core that includes a first semiconductor nanocrystal including zinc, tellurium, and selenium, and a semiconductor nanocrystal shell that is disposed on the core and includes a zinc chalcogenide, wherein the quantum dot further includes magnesium and the mole ratio of Te:Se is greater than or equal to about 0.1:1 in the quantum dot; a production method thereof; and an electronic device including the same.
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38.
公开(公告)号:US20210348055A1
公开(公告)日:2021-11-11
申请号:US17243741
申请日:2021-04-29
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Soo Kyung KWON , Yong Wook KIM , Seon-Yeong KIM , Ji-Yeong KIM , Jihyun MIN , Eun Joo JANG , Seonmyeong CHOI , Sungwoo HWANG
Abstract: A quantum dot including a core including a first semiconductor nanocrystal including zinc, selenium, and tellurium, and a semiconductor nanocrystal shell disposed on the core, the semiconductor nanocrystal shell including zinc, and selenium, sulfur, or a combination thereof, wherein the quantum dot does not include cadmium, a mole ratio of tellurium relative to selenium in the first semiconductor nanocrystal is greater than about 1:1, a mole ratio of a sum of selenium and sulfur relative to in the quantum dot is greater than about 1:1, a wavelength of a maximum emission peak of the quantum dot is in a range of about 500 nanometers (nm) to about 550 nm, and the quantum dot has quantum efficiency (QY) of greater than or equal to about 30%, a quantum dot-polymer composite including the quantum dot, a display device including the quantum dot-polymer composite, and an electroluminescent device including the quantum dot.
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公开(公告)号:US20210269715A1
公开(公告)日:2021-09-02
申请号:US17186434
申请日:2021-02-26
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Jihyun MIN , Soo Kyung KWON , Seon-Yeong KIM , Yong Wook KIM , Ji-Yeong KIM , Eun Joo JANG , Sungwoo HWANG
Abstract: A quantum dot including a core and a shell disposed on an outer surface of the core. The core includes a first semiconductor nanocrystal including a Group II-VI compound. The shell includes a second semiconductor nanocrystal. An effective mass of the second semiconductor nanocrystal is about 0.5 times to about 2.0 times an effective mass of the first semiconductor nanocrystal and the quantum dot does not include cadmium, lead, mercury, or a combination thereof.
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公开(公告)号:US20210183999A1
公开(公告)日:2021-06-17
申请号:US17186077
申请日:2021-02-26
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Soo Kyung KWON , Yongwook KIM , Eun Joo JANG , Jihyun MIN
Abstract: A 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 dopant, wherein the first semiconductor nanocrystal includes a Group III-V compound, the second semiconductor nanocrystal includes zinc (Zn), sulfur (S), and selenium, and the dopant includes lithium, a Group 2A metal having an effective ionic radius less than an effective ionic radius of Zn2+, a Group 3A element having an effective ionic radius less than an effective ionic radius of Zn2+, or a combination thereof. Also a method of producing the quantum dot, and a composite, and an electronic device including the quantum dot.
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