公开(公告)号：US20210098732A1

公开(公告)日：2021-04-01

申请号：US17027727

申请日：2020-09-22

Applicant: JOLED Inc.

Inventor： Hiroshi KATAGIRI ,  Takahiro KOMATSU

IPC: H01L51/50 ,  H01L51/52

Abstract: A display panel including a substrate, anodes disposed on or above the substrate, light-emitting layers disposed on or above the anodes, a first intermediate layer disposed on or above the light-emitting layers, a second intermediate layer disposed on the first intermediate layer, and a cathode disposed on or above the second intermediate layer. The first intermediate layer includes a fluoride of a first metal or a complex of the first metal. The second intermediate layer includes a second metal. The anodes are light-transmissive and the cathode is light-reflective, or the anodes are light-reflective and the cathode is light-transmissive. The first metal is selected from a group consisting of alkali metals and alkaline earth metals. The second metal is selected from rare earth metals.

公开(公告)号：US20210083017A1

公开(公告)日：2021-03-18

申请号：US17017725

申请日：2020-09-11

Applicant: JOLED Inc.

Inventor： Takahiro KOMATSU ,  Kosuke MISHIMA ,  Koyo SAKAMOTO

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

Abstract: A display panel in which pixels each include light-emitting parts are two-dimensionally arranged across a main surface of a substrate. The light-emitting parts each include: a first electrode that is light-reflective; a first functional layer disposed above the first electrode; a light-emitting layer disposed above the first functional layer; a second functional layer disposed above the light-emitting layer and including ytterbium; and a second electrode disposed above the second functional layer and being light-transmissive. At least one of the light-emitting layer and the first functional layer is an applied film. With respect to each pixel, at least one of the light-emitting parts differs from any other of the light-emitting parts in terms of light emission color, and the at least one light-emitting part differs from the any other of the light-emitting parts in terms of film thickness of at least one of the light-emitting layer and the first functional layer.

公开(公告)号：US20180097050A1

公开(公告)日：2018-04-05

申请号：US15722407

申请日：2017-10-02

Applicant: JOLED INC.

Inventor： Kazuhiro YOKOTA ,  Hideyuki SHIRAHASE ,  Takahiro KOMATSU ,  Masaki NISHIMURA

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

CPC classification number: H01L27/3246 ,  H01L27/3258 ,  H01L51/0005 ,  H01L51/5209 ,  H01L51/5215 ,  H01L51/5253 ,  H01L51/56 ,  H01L2227/323 ,  H01L2251/303

Abstract: An organic EL element includes a planarized layer arranged on a substrate, an insulation layer which is arranged on the planarized layer with the region corresponding to a subpixel of the planarized layer left exposed at least partly, a pixel electrode which has an opening that defines the region corresponding to the subpixel and which is arranged on a bank arranged on the insulation layer and on the exposed part of the planarized layer, a transparent conductive layer arranged on the pixel electrode, an emission layer arranged in the opening and above at least the transparent conductive layer, and a counter electrode arranged above the emission layer. The insulation layer is interposed between a bottom of the bank and the planarized layer. An upper surface of the planarized layer is coated with at least one of the pixel electrode and the insulation layer.

公开(公告)号：US20170012231A1

公开(公告)日：2017-01-12

申请号：US15204288

申请日：2016-07-07

Applicant: JOLED INC. ,  JAPAN DISPLAY INC.

Inventor： Kosuke MISHIMA ,  Yoshiyuki OTA ,  Junko TANAKA ,  Takahiro KOMATSU ,  Hiroshi KATAGIRI

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

CPC classification number: H01L51/5004 ,  H01L27/3244 ,  H01L51/0097 ,  H01L51/5012 ,  H01L51/5056 ,  H01L51/5072 ,  H01L2227/323 ,  H01L2251/5338 ,  H01L2251/552 ,  H01L2251/558 ,  Y02E10/549

Abstract: An organic electroluminescence (EL) element including an anode, a cathode opposing the anode, a light-emitting layer between the anode and the cathode, a hole transport layer in contact with the light-emitting layer, between the light-emitting layer and the anode, and an electron transport layer in contact with the light-emitting layer, between the light-emitting layer and the cathode. A difference between a lowest unoccupied molecular orbital (LUMO) level of an organic material included in the light-emitting layer and a LUMO level of an organic material included in the electron transport layer is greater than a difference between a highest occupied molecular orbital (HOMO) level of an organic material included in the hole transport layer and a HOMO level of the organic material included in the light-emitting layer.

Abstract translation: 一种有机电致发光（EL）元件，包括阳极，与阳极相对的阴极，阳极和阴极之间的发光层，与发光层接触的空穴传输层，在发光层和 阳极和与发光层接触的电子传输层，在发光层和阴极之间。 包含在发光层中的有机材料的最低未占分子轨道（LUMO）水平与包含在电子传输层中的有机材料的LUMO能级之间的差异大于最高占据分子轨道（HOMO ）水平的包含在空穴传输层中的有机材料和包含在发光层中的有机材料的HOMO能级。

公开(公告)号：US20170133437A1

公开(公告)日：2017-05-11

申请号：US15318013

申请日：2015-06-19

Applicant: JOLED INC.

Inventor： Takahiro KOMATSU

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

CPC classification number: H01L27/3206 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5218 ,  H01L51/5221 ,  H01L51/5265

Abstract: A plurality of light emitters emitting different colors of light in an organic light-emitting device, each light emitter including a first electrode, a first charge injection/transport layer, an organic light-emitting layer, an intermediate layer, a second charge injection/transport layer, and a second electrode, above a substrate. The intermediate layer includes a fluoride of an alkali metal or an alkaline earth metal. The second charge injection/transport layer includes an alkali metal or an alkaline earth metal. Of the first electrode and the second electrode, one electrode is light reflective and the other electrode is light transmissive. Of the first charge injection/transport layer and the second charge injection/transport layer, one charge injection/transport layer is disposed between the organic light-emitting layer and the one electrode, and thickness of the one charge injection/transport layer is different between a first light emitter and a second light emitter.

公开(公告)号：US20170288162A1

公开(公告)日：2017-10-05

申请号：US15472427

申请日：2017-03-29

Applicant: JOLED INC. ,  JAPAN DISPLAY INC.

Inventor： Toshiyuki AKIYAMA ,  Kosuke MISHIMA ,  Takahiro KOMATSU

IPC: H01L51/50 ,  H01L51/52

Abstract: ΔE1 denoting difference between LUMO energy level of hole transport and LUMO energy level of light-emitting layer, μe1 denoting electron mobility of the hole transport layer, and μe2 denoting electron mobility of the light-emitting layer satisfy μ   e   1 μ   e   2 × exp  ( - Δ   E   1 × 38.681731 ) ≤ 2.090 × 10 - 2 when    μ   e   1

公开(公告)号：US20210151709A1

公开(公告)日：2021-05-20

申请号：US17088602

申请日：2020-11-04

Applicant: JOLED Inc.

Inventor： Kazuhiro YONEDA ,  Takahiro KOMATSU

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

Abstract: A display panel including a power supplying auxiliary electrode above the substrate in at least one gap among gaps between pixel electrodes in row and column directions, not in contact with the pixel electrodes, extending in the row and/or column direction. An intermediate layer is on or above light-emitting layers and the auxiliary electrode, and includes a fluoride of an alkali metal or an alkaline earth metal. A functional layer is on or above the intermediate layer, and includes an organic material that facilitates electron transport and/or facilitates electron injection and a rare earth metal dopant. A counter electrode is on or above the functional layer. Further, 1≤x≤3, 20≤y≤40, and y≥10x+10, where x is film thickness of the intermediate layer in nanometers, and y is percentage by weight of the rare earth metal dopant in the functional layer.

公开(公告)号：US20180308906A1

公开(公告)日：2018-10-25

申请号：US16018882

申请日：2018-06-26

Applicant: JOLED INC.

Inventor： Takahiro KOMATSU

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

CPC classification number: H01L27/3206 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5218 ,  H01L51/5221 ,  H01L51/5265

Abstract: A plurality of light emitters emitting different colors of light in a light-emitting device is provided on a surface of a substrate along two dimensions. Each light emitter includes a first electrode, a first charge injection/transport layer, a light-emitting layer, an intermediate layer, a second charge injection/transport layer, and a second electrode. The intermediate layer includes a fluoride of an alkali metal or an alkaline earth metal. Among the first electrode and the second electrode, one electrode is light reflective and another electrode is light transmissive. Among the first charge injection/transport layer and the second charge injection/transport layer, one charge injection/transport layer is disposed between the light-emitting layer and the light reflective electrode, and thickness of the one charge injection/transport layer included in the first light emitter is different from thickness of the one charge injection/transport layer included in the second light emitter.

公开(公告)号：US20170033308A1

公开(公告)日：2017-02-02

申请号：US15220852

申请日：2016-07-27

Applicant: JOLED INC. ,  JAPAN DISPLAY INC.

Inventor： Kosuke MISHIMA ,  Junko TANAKA ,  Hiroshi KATAGIRI ,  Takahiro KOMATSU

IPC: H01L51/50 ,  H01L51/52

CPC classification number: H01L51/5092 ,  H01L51/5004 ,  H01L51/5076 ,  H01L51/5218 ,  H01L51/5234 ,  H01L2251/552 ,  H01L2251/558

Abstract: An organic electroluminescence (EL) element including an anode, a light-emitting layer above the anode, a first functional layer on and in contact with the light-emitting layer, a second functional layer on and in contact with the first functional layer, and a cathode above the second functional layer. A lowest unoccupied molecular orbital (LUMO) level of the first functional layer is lower than at least one of a LUMO level of the second functional layer and a Fermi level of a metal material included in the second functional layer.

Abstract translation: 一种有机电致发光（EL）元件，包括阳极，阳极上方的发光层，与发光层接触并与发光层接触的第一功能层，与第一功能层接触并与第一功能层接触的第二功能层，以及 在第二功能层上方的阴极。 第一功能层的最低未占分子轨道（LUMO）水平低于第二功能层的LUMO水平和包含在第二功能层中的金属材料的费米能级中的至少一个。

公开(公告)号：US20160293676A1

公开(公告)日：2016-10-06

申请号：US15035335

申请日：2014-11-13

Applicant: JOLED INC.

Inventor： Takahiro KOMATSU

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

CPC classification number: H01L27/3213 ,  G02B5/20 ,  H01L27/3209 ,  H01L27/3211 ,  H01L27/322 ,  H01L27/3244 ,  H01L51/0003 ,  H01L51/0005 ,  H01L51/0008 ,  H01L51/5012 ,  H01L51/5036 ,  H01L51/504 ,  H01L51/5281 ,  H01L51/56 ,  H01L2227/323 ,  H05B33/145

Abstract: An organic EL display panel includes: a first pixel electrode and a red organic light-emitting layer sequentially disposed in red subpixel region; a second pixel electrode and a green organic light-emitting layer sequentially disposed in green subpixel region; a third pixel electrode and a first blue organic light-emitting layer sequentially disposed in blue subpixel region; a charge generation layer disposed above the red, green, and first blue light-emitting layers; a second blue organic light-emitting layer disposed on the charge generation layer in the entire subpixel regions; a counter electrode disposed above the second blue light-emitting layer in the entire subpixels regions; a first light conversion layer disposed above the second blue light-emitting layer in the red subpixel region, and converts blue light to red light; and a second light conversion layer disposed above the second blue light-emitting layer in the green subpixel region, and converts blue light to green light.

Abstract translation: 有机EL显示面板包括：顺序地设置在红色子像素区域中的第一像素电极和红色有机发光层; 顺序地设置在绿色子像素区域中的第二像素电极和绿色有机发光层; 顺序地设置在蓝色子像素区域中的第三像素电极和第一蓝色有机发光层; 设置在红色，绿色和第一蓝色发光层之上的电荷产生层; 设置在整个子像素区域中的电荷产生层上的第二蓝色有机发光层; 对置电极，设置在整个子像素区域中的第二蓝色发光层的上方; 第一光转换层，设置在红色子像素区域中的第二蓝色发光层的上方，并将蓝色光转换成红色光; 以及第二光转换层，其设置在所述绿色子像素区域中的所述第二蓝色发光层的上方，并将蓝色光转换为绿色光。