公开(公告)号：US10957856B2

公开(公告)日：2021-03-23

申请号：US16295407

申请日：2019-03-07

Applicant: JOLED INC.

Inventor： Yasuhiro Yamauchi ,  Shinichiro Ishino ,  Tomohiko Oda ,  Mineki Hasegawa ,  Yasuhiro Sekimoto

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

Abstract: Disclosed is a method for manufacturing an organic EL display panel in which a plurality of organic electroluminescence elements each including an organic layer are arranged on an upper side of a substrate. The method includes applying an ink obtained by dissolving or dispersing an organic material in a solvent to a preset application area over the substrate, and cooling the ink applied in the applying within a period until the ink is dried, to lower an ink temperature to a second temperature lower than a first temperature of the ink at a time of application thereof.

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.

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：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.