公开(公告)号：US20180069178A1

公开(公告)日：2018-03-08

申请号：US15696549

申请日：2017-09-06

Applicant: JOLED Inc.

Inventor： Tomohiko Oda ,  Shinichiro Ishino ,  Koyo Sakamoto ,  Yasuhiro Yamauchi

IPC: H01L51/00 ,  H01L27/32 ,  C09K11/06

CPC classification number: H01L51/0007 ,  C09K11/02 ,  C09K11/06 ,  C09K2211/1011 ,  H01L27/3211 ,  H01L51/005 ,  H01L51/0052

Abstract: According to one embodiment, a solution for organic EL contains a mixed solvent of two or more kinds of organic solvents which contain at least a first organic solvent and a second organic solvent, and an organic EL contributing material dissolved into the mixed solvent. The coordinates (HSP coordinates) specified by Hansen solubility parameters of the first organic solvent are Hd in a range of 17.5 to 19.5 (J/cm3)1/2, Hp in a range of 3.5 to 5.5 (J/cm3)1/2 and Hh in a range of 3.5 to 5.5 (J/cm3)1/2. The HSP coordinates of the second organic solvent are Hd in a range of 17.5 to 19.5 (J/cm3)1/2, Hp in a range of 0 to 2.0 (J/cm3)1/2, and Hh in a range of 0.5 to 2.5 (J/cm3)1/2.

公开(公告)号：US10526498B2

公开(公告)日：2020-01-07

申请号：US15665237

申请日：2017-07-31

Applicant: JOLED Inc.

Inventor： Tomohiko Oda ,  Shinichiro Ishino ,  Koyo Sakamoto ,  Yasuhiro Yamauchi

IPC: H01B1/12 ,  C09D11/36 ,  C09D11/52 ,  H01L51/00 ,  H01L51/50

Abstract: According to one embodiment, an ink for organic EL includes an organic EL contributing material and an organic solvent. A relative energy difference RED based on Hansen solubility parameters which attribute to the organic EL contributing material and the organic solvent, respectively, is less than 0.5.

公开(公告)号：US10454070B2

公开(公告)日：2019-10-22

申请号：US16030389

申请日：2018-07-09

Applicant: JOLED INC.

Inventor： Koyo Sakamoto

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/50 ,  H01L51/56 ,  H01L51/00

Abstract: Disclosed herein is an organic EL element including a first electrode, a light emitting layer, a ground layer, and a light-transmitting second electrode stacked in this order over a substrate. The ground layer is light-transmitting and electrically conductive, and its surface on which the second electrode is stacked has a surface roughness of 0.3 to 2.7 nm. The second electrode is a silver thin film layer formed of silver or containing silver as a main constituent.

公开(公告)号：US11069856B2

公开(公告)日：2021-07-20

申请号：US15696549

申请日：2017-09-06

Applicant: JOLED Inc.

Inventor： Tomohiko Oda ,  Shinichiro Ishino ,  Koyo Sakamoto ,  Yasuhiro Yamauchi

IPC: H01L51/50 ,  H01L51/00 ,  C09K11/06 ,  C09K11/02 ,  H01L27/32

Abstract: According to one embodiment, a solution for organic EL contains a mixed solvent of two or more kinds of organic solvents which contain at least a first organic solvent and a second organic solvent, and an organic EL contributing material dissolved into the mixed solvent. The coordinates (HSP coordinates) specified by Hansen solubility parameters of the first organic solvent are Hd in a range of 17.5 to 19.5 (J/cm3)1/2, Hp in a range of 3.5 to 5.5 (J/cm3)1/2 and Hh in a range of 3.5 to 5.5 (J/cm3)1/2. The HSP coordinates of the second organic solvent are Hd in a range of 17.5 to 19.5 (J/cm3)1/2, Hp in a range of 0 to 2.0 (J/cm3)1/2, and Hh in a range of 0.5 to 2.5 (J/cm3)1/2.

公开(公告)号：US20180030297A1

公开(公告)日：2018-02-01

申请号：US15665237

申请日：2017-07-31

Applicant: JOLED Inc.

Inventor： Tomohiko Oda ,  Shinichiro Ishino ,  Koyo Sakamoto ,  Yasuhiro Yamauchi

IPC: C09D11/36 ,  H01L51/00 ,  C09D11/52

CPC classification number: C09D11/36 ,  C09D11/52 ,  H01L51/0005 ,  H01L51/0007 ,  H01L51/0039 ,  H01L51/5012 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5096

Abstract: According to one embodiment, an ink for organic EL includes an organic EL contributing material and an organic solvent. A relative energy difference RED based on Hansen solubility parameters which attribute to the organic EL contributing material and the organic solvent, respectively, is less than 0.5.

公开(公告)号：US11758749B2

公开(公告)日：2023-09-12

申请号：US17372520

申请日：2021-07-12

Applicant: JOLED Inc.

Inventor： Kosuke Mishima ,  Koyo Sakamoto ,  Muneharu Sato

IPC: H10K50/17 ,  H10K50/818 ,  H10K50/828 ,  H10K59/35 ,  H10K71/00 ,  H10K102/00

CPC classification number: H10K50/171 ,  H10K50/818 ,  H10K50/828 ,  H10K59/35 ,  H10K71/00 ,  H10K2102/351

Abstract: An organic electroluminescence element includes an anode, an organic light emitting layer disposed on an upper side of the anode, a first functional layer disposed over the organic light emitting layer and including NaF, a second functional layer disposed over the first functional layer and including an organic material containing Yb, and a cathode disposed on an upper side of the second functional layer. A method of manufacturing an organic electroluminescence element, includes forming an anode, forming an organic light emitting layer on an upper side of the anode, forming a first functional layer including NaF over the organic light emitting layer, forming a second functional layer including an organic material containing Yb over the first functional layer, and forming a cathode on an upper side of the second functional layer.

公开(公告)号：US10283711B2

公开(公告)日：2019-05-07

申请号：US15406006

申请日：2017-01-13

Applicant: JOLED INC.

Inventor： Koyo Sakamoto ,  Shinichiro Ishino ,  Tomohiko Oda ,  Yasuhiro Yamauchi

IPC: H01B1/12 ,  H01L51/00 ,  C09D11/50 ,  C09D11/52 ,  C09K11/06 ,  H01L51/50

Abstract: A method of producing an organic electroluminescent ink includes reducing ozone contained in an organic electroluminescent mixture comprising an organic electroluminescent material and a solvent.