公开(公告)号：US11245085B2

公开(公告)日：2022-02-08

申请号：US16817614

申请日：2020-03-13

Applicant: JOLED Inc.

Inventor： Hiroki Tsujimura ,  Kazuhiro Yokota ,  Hideyuki Shirahase ,  Kazuhiro Yoneda

IPC: H01L51/50 ,  H01L51/56

Abstract: Disclosed is a self light-emitting element including a first electrode, a light-emitting layer disposed above the first electrode, a function layer disposed above the light-emitting layer, and doped with a metal, and a second electrode disposed above the function layer, in which the function layer has a multilayer structure of at least three layers including an uppermost layer, a lowermost layer, and an intermediate layer between the uppermost layer and the lowermost layer, and the intermediate layer is doped with the metal at a lower concentration than the uppermost layer and the lowermost layer.

公开(公告)号：US10305068B2

公开(公告)日：2019-05-28

申请号：US15901368

申请日：2018-02-21

Applicant: JOLED INC.

Inventor： Hideyuki Shirahase ,  Hiroyuki Ajiki ,  Jun Hashimoto ,  Masaki Nishimura

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

Abstract: An organic EL element includes an anode, a light emitting layer, a functional layer, a cathode, and a low refractive index layer. The light emitting layer is disposed above the anode. The functional layer is disposed on and in contact with the light emitting layer and includes a first metal. The cathode is disposed on and in contact with the functional layer and is made of a light transmissive metal oxide. The low refractive index layer is disposed on and in contact with the cathode. Refractive index of the low refractive index layer is smaller than refractive index of the cathode, film thickness of the functional layer is from 15 nm to 35 nm, and a distance between an anode-side surface of the light emitting layer and an interface between the cathode and the low refractive index layer is 110 nm or greater.

公开(公告)号：US10581019B2

公开(公告)日：2020-03-03

申请号：US15715800

申请日：2017-09-26

Applicant: JOLED INC.

Inventor： Hideyuki Shirahase ,  Hiroyuki Ajiki ,  Jun Hashimoto ,  Masaki Nishimura

IPC: H01L29/08 ,  H01L51/52 ,  H01L51/50 ,  H01L27/32 ,  H01L51/56

Abstract: An organic electroluminescence element includes an anode, a light-emitting layer disposed over the anode, a functional layer disposed on the light-emitting layer in contact with the light-emitting layer and including a first metal, a light-transmitting conductive layer disposed on the functional layer in contact with the functional layer and composed of a metallic oxide, and a cathode disposed on the light-transmitting conductive layer in contact with the light-transmitting conductive layer and composed of a metal. The functional layer has a film thickness of 15 to 35 nm. A surface of the anode on the light-emitting layer side and an interface between the cathode and the light-transmitting conductive layer are spaced from each other by not less than 150 nm.

公开(公告)号：US20180248154A1

公开(公告)日：2018-08-30

申请号：US15901368

申请日：2018-02-21

Applicant: JOLED INC.

Inventor： Hideyuki Shirahase ,  Hiroyuki Ajiki ,  Jun Hashimoto ,  Masaki Nishimura

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

CPC classification number: H01L51/5265 ,  H01L27/3244 ,  H01L51/5012 ,  H01L51/5076 ,  H01L51/5092 ,  H01L51/5218 ,  H01L51/5234 ,  H01L51/56 ,  H01L2227/323 ,  H01L2251/308 ,  H01L2251/5315 ,  H01L2251/558

Abstract: An organic EL element includes an anode, a light emitting layer, a functional layer, a cathode, and a low refractive index layer. The light emitting layer is disposed above the anode. The functional layer is disposed on and in contact with the light emitting layer and includes a first metal. The cathode is disposed on and in contact with the functional layer and is made of a light transmissive metal oxide. The low refractive index layer is disposed on and in contact with the cathode. Refractive index of the low refractive index layer is smaller than refractive index of the cathode, film thickness of the functional layer is from 15 nm to 35 nm, and a distance between an anode-side surface of the light emitting layer and an interface between the cathode and the low refractive index layer is 110 nm or greater.

公开(公告)号：US09786726B2

公开(公告)日：2017-10-10

申请号：US15117546

申请日：2015-02-13

Applicant: JOLED INC.

Inventor： Jun Hashimoto ,  Hideyuki Shirahase ,  Kenichi Nendai

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

CPC classification number: H01L27/3246 ,  H01L27/322 ,  H01L51/0096 ,  H01L51/5056 ,  H01L51/5076 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5234

Abstract: Light emitters are two-dimensionally disposed along a main surface of the substrate. The light emitters each include: a first electrode; an organic light-emitting layer; an intermediate layer; a charge transport layer; and a second electrode. Such layers are disposed in the stated order with the first electrode closest to the substrate. The intermediate layer contains a fluoride of an alkali metal or a fluoride of an alkaline earth metal. The charge transport layer contains an organic material doped with an alkali metal or an alkaline earth metal. The light emitters are partitioned from one another by first banks extending in one direction along the main surface of the substrate and second banks extending in a direction intersecting the one direction. Surface portions of the first banks facing the light emitters have greater liquid repellency than surface portions of the second banks facing the light emitters.