公开(公告)号：US09666819B2

公开(公告)日：2017-05-30

申请号：US14856963

申请日：2015-09-17

Applicant: Samsung Display Co., Ltd.

Inventor： Youngseo Park ,  Jungmin Moon

IPC: H01L29/08 ,  H01L51/50

CPC classification number: H01L51/5008 ,  H01L51/5004 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5096

Abstract: An organic light emitting diode includes a first electrode layer disposed on a base substrate, a second electrode layer disposed on the first electrode layer and facing the first electrode layer, an emitting layer disposed between the first electrode layer and the second electrode layer, a hole transport region disposed between the emitting layer and the first electrode layer, an auxiliary layer disposed between the hole transport region and the emitting layer, the auxiliary layer including a first material and a second material, and an electron transport region disposed between the emitting layer and the second electrode layer, in which a lowest unoccupied molecular orbital (LUMO) energy level of the first material is higher than a LUMO energy level of the emitting layer, and a LUMO energy level of the second material is lower than the LUMO energy level of the emitting layer.

公开(公告)号：US20250072204A1

公开(公告)日：2025-02-27

申请号：US18736316

申请日：2024-06-06

Applicant: Samsung Display Co., Ltd.

Inventor： Jinwoong Kim ,  Jungmin Moon ,  Youngtak Lee ,  Hyowon Choi

IPC: H10K50/16 ,  H10K71/13 ,  H10K101/40 ,  H10K102/00

Abstract: A light-emitting diode includes a pixel electrode, a first functional layer on the pixel electrode, an emission layer on the first functional layer, a second functional layer on the emission layer, and an opposite electrode on the second functional layer, wherein the second functional layer includes an auxiliary electron transport layer on the emission layer and including a first deposition material, a mixed layer on the auxiliary electron transport layer and including the first deposition material, a second deposition material, and a third deposition material, and an electron transport layer on the mixed layer and including the second deposition material and the third deposition material.

公开(公告)号：US10177334B2

公开(公告)日：2019-01-08

申请号：US14861775

申请日：2015-09-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Eunji Choi ,  Jungmin Moon ,  Jahyun Im

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

Abstract: An organic light emitting device includes a first electrode, a hole transport region provided on the first electrode, an emission layer provided on the hole transport region, an electron transport region provided on the emission layer, and a second electrode provided on the electron transport region. The electron transport region includes an electron transport layer provided on the emission layer, a first mixed electron transport layer provided on the electron transport layer, and a second mixed electron transport layer provided on the first mixed electron transport layer. The first mixed electron transport layer includes a first electron transport compound and a second electron transport compound different from the first electron transport compound mixed at a first ratio. The second mixed electron transport layer includes the first electron transport compound and the second electron transport compound mixed at a second ratio different from the first ratio.

公开(公告)号：US20160276601A1

公开(公告)日：2016-09-22

申请号：US14861775

申请日：2015-09-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Eunji Choi ,  Jungmin Moon ,  Jahyun Im

IPC: H01L51/00 ,  H01L27/32

CPC classification number: H01L51/508 ,  H01L51/0054 ,  H01L51/006 ,  H01L51/0067 ,  H01L51/5008

Abstract: An organic light emitting device includes a first electrode, a hole transport region provided on the first electrode, an emission layer provided on the hole transport region, an electron transport region provided on the emission layer, and a second electrode provided on the electron transport region. The electron transport region includes an electron transport layer provided on the emission layer, a first mixed electron transport layer provided on the electron transport layer, and a second mixed electron transport layer provided on the first mixed electron transport layer. The first mixed electron transport layer includes a first electron transport compound and a second electron transport compound different from the first electron transport compound mixed at a first ratio. The second mixed electron transport layer includes the first electron transport compound and the second electron transport compound mixed at a second ratio different from the first ratio.

Abstract translation: 有机发光器件包括第一电极，设置在第一电极上的空穴传输区域，设置在空穴传输区域上的发射层，设置在发射层上的电子传输区域和设置在电子传输区域上的第二电极 。 电子传输区域包括设置在发射层上的电子传输层，设置在电子传输层上的第一混合电子传输层和设置在第一混合电子传输层上的第二混合电子传输层。 第一混合电子传输层包括第一电子传输化合物和不同于以第一比率混合的第一电子传输化合物的第二电子传输化合物。 第二混合电子传输层包括以与第一比率不同的第二比率混合的第一电子传输化合物和第二电子传输化合物。