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No. Publication Number Title Publication/Patent Number Publication/Patent Number Publication Date Publication Date
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1
US2020328368A1
ELECTRIC DEVICE AND DISPLAY DEVICE COMPRISING THE SAME
Publication/Patent Number: US2020328368A1 Publication Date: 2020-10-15 Application Number: 16/913,575 Filing Date: 2020-06-26 Inventor: Chung, Dae Young   Seo, Hongkyu   Lee, Yeonkyung   Jang, Eun Joo   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/50 Abstract: An electronic device includes a first electrode and a second electrode facing each other, an emission layer comprising a plurality of quantum dots, wherein the emission layer is disposed between the first electrode and the second electrode; a first charge auxiliary layer disposed between the first electrode and the emission layer; and an optical functional layer disposed on the second electrode on a side opposite the emission layer, wherein the first electrode includes a reflecting electrode, wherein the second electrode is a light-transmitting electrode, wherein a region between the optical functional layer and the first electrode comprises a microcavity structure, and a refractive index of the optical functional layer is greater than or equal to a refractive index of the second electrode.
2
EP3597724A1
LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
Publication/Patent Number: EP3597724A1 Publication Date: 2020-01-22 Application Number: 19186551.8 Filing Date: 2019-07-16 Inventor: Seo, Hongkyu   Han, Moon Gyu   Jang, Eun Joo   Park, Sujin   Chung, Dae Young   Assignee: Samsung Electronics Co., Ltd.   IPC: C09K11/70 Abstract: A light emitting device including a first electrode and a second electrode facing each other, an emission layer disposed between the first electrode and the second electrode, the emission layer including quantum dots, and an electron auxiliary layer disposed between the emission layer and the second electrode, the electron auxiliary layer including nanoparticles and a small molecule organic compound and a display device including the same. The nanoparticles include a metal oxide including zinc, and an electron mobility of the small molecule organic compound is less than an electron mobility of the nanoparticles.
3
US2020028105A1
LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
Publication/Patent Number: US2020028105A1 Publication Date: 2020-01-23 Application Number: 16/512,954 Filing Date: 2019-07-16 Inventor: Seo, Hongkyu   Han, Moon Gyu   Jang, Eun Joo   Park, Sujin   Chung, Dae Young   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/50 Abstract: A light emitting device including a first electrode and a second electrode facing each other, an emission layer disposed between the first electrode and the second electrode, the emission layer including quantum dots, and an electron auxiliary layer disposed between the emission layer and the second electrode, the electron auxiliary layer including nanoparticles and a small molecule organic compound and a display device including the same. The nanoparticles include a metal oxide including zinc, and an electron mobility of the small molecule organic compound is less than an electron mobility of the nanoparticles.
4
US2020161551A1
ELECTROLUMINESCENT DEVICE, AND DISPLAY DEVICE COMPRISING THEREOF
Publication/Patent Number: US2020161551A1 Publication Date: 2020-05-21 Application Number: 16/372,861 Filing Date: 2019-04-02 Inventor: Yoon, Won Sik   Han, Moon Gyu   Kim, Tae Ho   Jang, Eun Joo   Seo, Hongkyu   Assignee: Samsung Electronics Co., Ltd.   IPC: H01L51/00 Abstract: An electroluminescent device and including a first electrode and a second electrode facing each other; an emission layer disposed between the first electrode and the second electrode, wherein the emission layer includes a quantum dot and a first electron transporting material represented by Chemical Formula 1; a hole transport layer disposed between the emission layer and the first electrode; and an electron transport layer disposed between the emission layer and the second electrode: wherein, the definitions of groups and variables in Chemical Formula 1 are the same as described in the specification.
5
US202028105A1
LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
Publication/Patent Number: US202028105A1 Publication Date: 2020-01-23 Application Number: 20/191,651 Filing Date: 2019-07-16 Inventor: Jang, Eun Joo   Han, Moon Gyu   Chung, Dae Young   Park, Sujin   Seo, Hongkyu   Assignee: Samsung Electronics Co., Ltd.   IPC: H01L51/50 Abstract: A light emitting device including a first electrode and a second electrode facing each other, an emission layer disposed between the first electrode and the second electrode, the emission layer including quantum dots, and an electron auxiliary layer disposed between the emission layer and the second electrode, the electron auxiliary layer including nanoparticles and a small molecule organic compound and a display device including the same. The nanoparticles include a metal oxide including zinc, and an electron mobility of the small molecule organic compound is less than an electron mobility of the nanoparticles.
6
EP3597724B1
LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
Publication/Patent Number: EP3597724B1 Publication Date: 2020-11-11 Application Number: 19186551.8 Filing Date: 2019-07-16 Inventor: Seo, Hongkyu   Han, Moon Gyu   Jang, Eun Joo   Park, Sujin   Chung, Dae Young   Assignee: Samsung Electronics Co., Ltd.   IPC: C09K11/70
7
EP3613826A1
LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
Publication/Patent Number: EP3613826A1 Publication Date: 2020-02-26 Application Number: 19193423.1 Filing Date: 2019-08-23 Inventor: Chung, Dae Young   Kim, Kwanghee   Seo, Hongkyu   Jang, Eun Joo   Cho, Oul   Kim, Tae Hyung   Won, Yuho   Lee, Heejae   Assignee: Samsung Electronics Co., Ltd.   IPC: C09K11/02 Abstract: A light emitting device, a method of manufacturing the same, and a display device including the same are disclosed. The light emitting device including a first electrode and a second electrode facing each other, an emission layer disposed between the first electrode and the second electrode, the emission layer including quantum dots, and a charge auxiliary layer disposed between the emission layer and the second electrode, wherein the emission layer includes a first surface facing the charge auxiliary layer and an opposite second surface, the quantum dots include a first organic ligand on a surface of the quantum dots, in the emission layer, an amount of the first organic ligand in a portion adjacent to the first surface is larger than an amount of the first organic ligand in a portion adjacent to the second surface.
8
US2020083470A1
LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
Publication/Patent Number: US2020083470A1 Publication Date: 2020-03-12 Application Number: 16/549,472 Filing Date: 2019-08-23 Inventor: Chung, Dae Young   Kim, Kwanghee   Seo, Hongkyu   Jang, Eun Joo   Cho, Oul   Kim, Tae Hyung   Won, Yuho   Lee, Hee Jae   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/50 Abstract: A light emitting device, a method of manufacturing the same, and a display device including the same are disclosed. The light emitting device including a first electrode and a second electrode facing each other, an emission layer disposed between the first electrode and the second electrode, the emission layer including quantum dots, and a charge auxiliary layer disposed between the emission layer and the second electrode, wherein the emission layer includes a first surface facing the charge auxiliary layer and an opposite second surface, the quantum dots include a first organic ligand on a surface of the quantum dots, in the emission layer, an amount of the first organic ligand in a portion adjacent to the first surface is larger than an amount of the first organic ligand in a portion adjacent to the second surface.
9
US2020335715A1
LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
Publication/Patent Number: US2020335715A1 Publication Date: 2020-10-22 Application Number: 16/851,276 Filing Date: 2020-04-17 Inventor: Chung, Dae Young   Kim, Kwanghee   Jang, Eun Joo   Kim, Tae Hyung   Seo, Hongkyu   Lee, Heejae   Chang, Jaejun   Assignee: SAMSUNG ELECTRONICS CO., LTD   IPC: H01L51/50 Abstract: A light emitting device including a first electrode and a second electrode, and an emission layer disposed between the first electrode and the second electrode and including quantum dots, a first charge auxiliary layer disposed between the emission layer and the first electrode, and a second charge auxiliary layer disposed between the emission layer and the second electrode, wherein the emission layer comprises a first emission layer contacting the first charge auxiliary layer, a second emission layer disposed on the first emission layer, and a third emission layer disposed on the second emission layer. The hole mobility of the first emission layer decreases sequentially from the first emission layer to the third emission layer.
10
US10818858B2
Electroluminescent device and display device comprising the same
Publication/Patent Number: US10818858B2 Publication Date: 2020-10-27 Application Number: 16/058,176 Filing Date: 2018-08-08 Inventor: Kim, Tae Ho   Kim, Chan Su   Park, Kun Su   Jang, Eun Joo   Kim, Sung Woo   Seo, Hongkyu   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L29/06 Abstract: An electroluminescent device and a display device including the same are disclosed. The electroluminescent device includes a first electrode, an electron transport layer disposed on the first electrode and including inorganic oxide particles, a self-assembled monolayer disposed on the electron transport layer, an emission layer disposed on the self-assembled monolayer and including light emitting particles, a hole transport layer disposed on the emission layer, and a second electrode disposed on the hole transport layer.
11
US2019157595A1
QUANTUM DOT DEVICE AND ELECTRONIC DEVICE
Publication/Patent Number: US2019157595A1 Publication Date: 2019-05-23 Application Number: 16/001,227 Filing Date: 2018-06-06 Inventor: Seo, Hongkyu   Jang, Eun Joo   Chung, Dae Young   Kim, Tae-ho   Lee, Sang Jin   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/50 Abstract: A quantum dot device includes an anode, a hole injection layer on the anode, a hole transport layer on the hole injection layer, a quantum dot layer on the hole transport layer, and a cathode on the quantum dot layer, wherein a highest occupied molecule orbital (HOMO) energy level of the quantum dot layer is greater than or equal to about 5.6 electronvolts (eV), a difference between a HOMO energy level of the hole transport layer and the highest occupied molecule orbital energy level of the quantum dot layer is less than about 0.5 eV, the hole injection layer has a first surface contacting the anode and a second surface contacting the hole transport layer, and a HOMO energy level of the first surface of the hole injection layer is different from a HOMO energy level of the second surface of the hole injection layer.
12
EP3537492A1
QUANTUM DOT DEVICE AND ELECTRONIC DEVICE
Publication/Patent Number: EP3537492A1 Publication Date: 2019-09-11 Application Number: 19161675.4 Filing Date: 2019-03-08 Inventor: Seo, Hongkyu   Jang, Eun Joo   Han, Moon Gyu   Kim, Tae Ho   Chung, Dae Young   Assignee: Samsung Electronics Co., Ltd.   IPC: H01L51/50 Abstract: A quantum dot device including an anode; a cathode disposed substantially opposite to the anode; a hole injection layer disposed on the anode between the anode and the cathode; a hole transport layer disposed on the hole injection layer between the hole injection layer and the cathode; and a quantum dot layer disposed on the hole transport layer between the hole transport layer and the cathode, wherein the quantum dot layer includes a plurality of quantum dots, wherein the hole transport layer includes a hole transport material and an electron transport material, and wherein a lowest unoccupied molecular orbital (LUMO) energy level of the electron transport material and a lowest unoccupied molecular orbital (LUMO) energy level of the quantum dot layer is about 0.5 electron volts or less.
13
US2019367805A1
SEMICONDUCTOR NANOCRYSTAL-LIGAND COMPOSITE AND ELECTRONIC DEVICE INCLUDING COMPOSITE
Publication/Patent Number: US2019367805A1 Publication Date: 2019-12-05 Application Number: 16/427,561 Filing Date: 2019-05-31 Inventor: Kim, Tae Ho   Kim, Chan Su   Chang, Jaejun   Jang, Eun Joo   Seo, Hongkyu   Assignee: Samsung Electronics Co., Ltd.   IPC: C09K11/06 Abstract: A semiconductor nanocrystal-ligand composite that includes a semiconductor nanocrystal and a ligand layer including an organic ligand coordinated on the surface of the semiconductor nanocrystal, wherein the organic ligand includes a moiety having a conjugation structure, and a first functional group (X) and a second functional group (Y) linked to the moiety having a conjugation structure, wherein the first functional group (X) is bound to the surface of the semiconductor nanocrystal and the second functional group (Y) is present at an ortho position with respect to the first functional group (X).
14
US2019280230A1
QUANTUM DOT DEVICE AND ELECTRONIC DEVICE
Publication/Patent Number: US2019280230A1 Publication Date: 2019-09-12 Application Number: 16/296,505 Filing Date: 2019-03-08 Inventor: Seo, Hongkyu   Jang, Eun Joo   Han, Moon Gyu   Kim, Tae Ho   Chung, Dae Young   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/50 Abstract: A quantum dot device including an anode; a cathode disposed substantially opposite to the anode; a hole injection layer disposed on the anode between the anode and the cathode; a hole transport layer disposed on the hole injection layer between the hole injection layer and the cathode; and a quantum dot layer disposed on the hole transport layer between the hole transport layer and the cathode, wherein the quantum dot layer includes a plurality of quantum dots, wherein the hole transport layer includes a hole transport material and an electron transport material, and wherein a lowest unoccupied molecular orbital (LUMO) energy level of the electron transport material and a lowest unoccupied molecular orbital (LUMO) energy level of the quantum dot layer is about 0.5 electron volts or less.
15
EP3575376A1
SEMICONDUCTOR NANOCRYSTAL-LIGAND COMPOSITE AND ELECTRONIC DEVICE INCLUDING COMPOSITE
Publication/Patent Number: EP3575376A1 Publication Date: 2019-12-04 Application Number: 19177578.2 Filing Date: 2019-05-31 Inventor: Kim, Tae Ho   Kim, Chan Su   Chang, Jaejun   Jang, Eun Joo   Seo, Hongkyu   Assignee: Samsung Electronics Co., Ltd.   IPC: C09K11/02 Abstract: A semiconductor nanocrystal-ligand composite that includes a semiconductor nanocrystal and a ligand layer including an organic ligand coordinated on the surface of the semiconductor nanocrystal, wherein the organic ligand includes a moiety having a conjugation structure, a first functional group (X) bound to the surface of the semiconductor nanocrystal and a second functional group (Y) present at an ortho position with respect to the first functional group (X).
16
US10446781B2
Quantum dot device and electronic device
Publication/Patent Number: US10446781B2 Publication Date: 2019-10-15 Application Number: 16/001,227 Filing Date: 2018-06-06 Inventor: Seo, Hongkyu   Jang, Eun Joo   Chung, Dae Young   Kim, Tae-ho   Lee, Sang Jin   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L29/08 Abstract: A quantum dot device includes an anode, a hole injection layer on the anode, a hole transport layer on the hole injection layer, a quantum dot layer on the hole transport layer, and a cathode on the quantum dot layer, wherein a highest occupied molecule orbital (HOMO) energy level of the quantum dot layer is greater than or equal to about 5.6 electronvolts (eV), a difference between a HOMO energy level of the hole transport layer and the highest occupied molecule orbital energy level of the quantum dot layer is less than about 0.5 eV, the hole injection layer has a first surface contacting the anode and a second surface contacting the hole transport layer, and a HOMO energy level of the first surface of the hole injection layer is different from a HOMO energy level of the second surface of the hole injection layer.
17
EP3544074A2
ELECTROLUMINESCENT DEVICE, AND DISPLAY DEVICE COMPRISING THEREOF
Publication/Patent Number: EP3544074A2 Publication Date: 2019-09-25 Application Number: 19163844.4 Filing Date: 2019-03-19 Inventor: Chung, Dae Young   Han, Moon Gyu   Cho, Oul   Kim, Tae Hyung   Park, Sujin   Seo, Hongkyu   Jang, Eun Joo   Assignee: Samsung Electronics Co., Ltd.   IPC: H01L51/50 Abstract: An electroluminescent device (10) including a first electrode (110), a hole transport layer (130) disposed on the first electrode, a first emission layer (140) disposed on the hole transport layer, the first emission layer including a first light emitting particle (141) on which a first ligand having a hole transporting property is attached, a second emission layer (150) disposed on the first emission layer, the second emission layer including a second light emitting particle (151) on which a second ligand having an electron transporting property is attached, an electron transport layer (160) disposed on the second emission layer, and a second electrode (170) disposed on the electron transport layer, wherein a solubility of the first ligand in a solvent is different than a solubility of the second ligand in the solvent and a display device including the same.
18
US2019296255A1
ELECTROLUMINESCENT DEVICE AND DISPLAY DEVICE COMPRISING THE SAME
Publication/Patent Number: US2019296255A1 Publication Date: 2019-09-26 Application Number: 16/058,176 Filing Date: 2018-08-08 Inventor: Kim, Tae Ho   Kim, Chan Su   Park, Kun Su   Jang, Eun Joo   Kim, Sung Woo   Seo, Hongkyu   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/50 Abstract: An electroluminescent device and a display device including the same are disclosed. The electroluminescent device includes a first electrode, an electron transport layer disposed on the first electrode and including inorganic oxide particles, a self-assembled monolayer disposed on the electron transport layer, an emission layer disposed on the self-assembled monolayer and including light emitting particles, a hole transport layer disposed on the emission layer, and a second electrode disposed on the hole transport layer.
19
EP3544074A3
ELECTROLUMINESCENT DEVICE, AND DISPLAY DEVICE COMPRISING THEREOF
Publication/Patent Number: EP3544074A3 Publication Date: 2019-11-06 Application Number: 19163844.4 Filing Date: 2019-03-19 Inventor: Chung, Dae Young   Han, Moon Gyu   Cho, Oul   Kim, Tae Hyung   Park, Sujin   Seo, Hongkyu   Jang, Eun Joo   Assignee: Samsung Electronics Co., Ltd.   IPC: H01L51/50 Abstract: An electroluminescent device (10) including a first electrode (110), a hole transport layer (130) disposed on the first electrode, a first emission layer (140) disposed on the hole transport layer, the first emission layer including a first light emitting particle (141) on which a first ligand having a hole transporting property is attached, a second emission layer (150) disposed on the first emission layer, the second emission layer including a second light emitting particle (151) on which a second ligand having an electron transporting property is attached, an electron transport layer (160) disposed on the second emission layer, and a second electrode (170) disposed on the electron transport layer, wherein a solubility of the first ligand in a solvent is different than a solubility of the second ligand in the solvent and a display device including the same.
20
US10446782B1
Quantum dot device and electronic device
Publication/Patent Number: US10446782B1 Publication Date: 2019-10-15 Application Number: 16/104,967 Filing Date: 2018-08-20 Inventor: Han, Moon Gyu   Chung, Dae Young   Seo, Hongkyu   Kim, Kwanghee   Park, Kun Su   Park, Sujin   Jang, Eun Joo   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/50 Abstract: A quantum dot device includes a first electrode and a second electrode facing each other, a quantum dot layer disposed between the first electrode and the second electrode and comprising a plurality of quantum dots, a first charge auxiliary layer disposed between the first electrode and the quantum dot layer and contacting the quantum dot layer, and a second charge auxiliary layer disposed between the second electrode and the quantum dot layer and contacting the quantum dot layer, wherein the plurality of quantum dots includes a quantum dot including an organic ligand on a surface thereof, the organic ligand including a hydrophilic functional group at a terminal end.
Total 2 pages