公开(公告)号：US11264583B2

公开(公告)日：2022-03-01

申请号：US16852171

申请日：2020-04-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dongkyu Seo ,  Dongchan Kim ,  Wonjong Kim ,  Eungdo Kim ,  Jihye Lee ,  Dahea Im ,  Sanghoon Yim ,  Yoonhyeung Cho ,  Wonsuk Han

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

Abstract: An organic light-emitting device comprising: a first electrode; a second electrode facing the first electrode; a first emission unit, a second emission unit and a third emission unit between the first electrode and the second electrode; a first charge generation layer between the first emission unit and the second emission unit; and a second charge generation layer between the second emission unit and the third emission unit, wherein the first emission unit comprises a first emission layer, the second emission unit comprises a second emission layer, the third emission unit comprises a third emission layer, and at least one of the first emission unit, the second emission unit and the third emission unit comprises an inorganic buffer layer.

公开(公告)号：US10312473B2

公开(公告)日：2019-06-04

申请号：US15832010

申请日：2017-12-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Donghoon Kim ,  Dongchan Kim ,  Wonjong Kim ,  Wonmin Yun ,  Byoungduk Lee ,  Jihye Lee ,  Sanghoon Yim ,  Yoonhyeung Cho ,  Youngcheol Joo ,  Wonsuk Han

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

Abstract: An organic light emitting display device includes: a substrate; an organic light emitting element on the substrate; and a thin film encapsulation layer on the organic light emitting element. The thin film encapsulation layer includes a first thin film, a second thin film and a third thin film which are sequentially stacked therein, a refractive index of the second thin film is about 1.7 or greater, and a refractive index of the first thin film and a refractive index of the third thin film are greater than the refractive index of the second thin film by about 0.35 or greater.

公开(公告)号：US10305059B2

公开(公告)日：2019-05-28

申请号：US16005169

申请日：2018-06-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dongkyu Seo ,  Dongchan Kim ,  Wonjong Kim ,  Eungdo Kim ,  Jihye Lee ,  Dahea Im ,  Sanghoon Yim ,  Yoonhyeung Cho ,  Wonsuk Han

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

Abstract: An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; a first emission unit and a second emission unit between the first electrode and the second electrode; and a first charge generation layer between the first emission unit and the second emission unit; wherein the first emission unit includes a first emission layer and a first inorganic buffer layer, and the second emission unit includes a second emission layer and a second inorganic buffer layer.

公开(公告)号：US09905791B2

公开(公告)日：2018-02-27

申请号：US14831824

申请日：2015-08-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Eungdo Kim ,  Dongchan Kim ,  Wonjong Kim ,  Dongkyu Seo ,  Dahea Im ,  Sanghoon Yim ,  Wonsuk Han

IPC: H01L29/08 ,  H01L51/50 ,  H01L51/52 ,  H01L51/00

CPC classification number: H01L51/5072 ,  H01L51/0081 ,  H01L51/5084 ,  H01L51/5092 ,  H01L51/5221 ,  H01L51/5231 ,  H01L2251/301 ,  H01L2251/558

Abstract: An organic light-emitting device includes a substrate, an anode on the substrate, a hole transport region on the anode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a cathode on the electron transport region, wherein the electron transport region includes an electron injection layer including a first material including at least one of a halide of an alkali metal, and a second material including at least one of a lanthanide metal and a alkaline earth metal, and wherein the cathode contacts the electron injection layer and includes a first metal including at least one of silver, gold, platinum, copper, manganese, titanium, cobalt, nickel, and tungsten, and a second metal including at least one of a lanthanide metal and an alkaline earth metal, wherein an amount of the first metal is equal to or greater than that of the second metal.

公开(公告)号：US20170125717A1

公开(公告)日：2017-05-04

申请号：US15173336

申请日：2016-06-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dongkyu Seo ,  Dongchan Kim ,  Wonjong Kim ,  Eungdo Kim ,  Jihye Lee ,  Dahea Im ,  Sanghoon Yim ,  Yoonhyeung Cho ,  Wonsuk Han

IPC: H01L51/50

CPC classification number: H01L51/5044 ,  H01L51/005 ,  H01L51/0052 ,  H01L51/0054 ,  H01L51/0055 ,  H01L51/0056 ,  H01L51/0058 ,  H01L51/0059 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0065 ,  H01L51/0067 ,  H01L51/0071 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/0077 ,  H01L51/0081 ,  H01L51/0084 ,  H01L51/0085 ,  H01L51/0087 ,  H01L51/0088 ,  H01L51/0092 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5056 ,  H01L51/5088 ,  H01L51/5096 ,  H01L51/56 ,  H01L2251/301

Abstract: An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; a first emission unit and a second emission unit between the first electrode and the second electrode; and a first charge generation layer between the first emission unit and the second emission unit; wherein the first emission unit includes a first emission layer and a first inorganic buffer layer, and the second emission unit includes a second emission layer and a second inorganic buffer layer.

公开(公告)号：US11856839B2

公开(公告)日：2023-12-26

申请号：US17038768

申请日：2020-09-30

Applicant: Samsung Display Co., Ltd.

Inventor： Dongchan Kim ,  Jiyoung Moon ,  Jihwan Yoon ,  Donghui Lee ,  Jihye Lee ,  Chulsoon Lee ,  Hakchoong Lee ,  Haemyeong Lee ,  Yoonhyeung Cho ,  Wonsuk Han

IPC: H10K50/10 ,  H10K85/30 ,  C09K11/06 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/18

CPC classification number: H10K85/342 ,  C09K11/06 ,  H10K85/346 ,  C09K2211/185 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/171 ,  H10K50/18

Abstract: A light-emitting device and a method of manufacturing the same are provided. The light-emitting device may include a first electrode, a second electrode, and an interlayer located between the first electrode and the second electrode. The interlayer may include an emission layer that includes a first material, a second material, and a third material. The first material may include an inorganic semiconductor compound, an inorganic insulator compound, or any combination thereof. The second material may include a lanthanide metal. The third material may include an organic compound. An apparatus including the light-emitting device is provided.

公开(公告)号：US11825670B2

公开(公告)日：2023-11-21

申请号：US17031828

申请日：2020-09-24

Applicant: Samsung Display Co., Ltd.

Inventor： Wonsuk Han ,  Donghui Lee ,  Hakchoong Lee ,  Dongchan Kim ,  Jiyoung Moon ,  Jihye Lee ,  Chulsoon Lee ,  Haemyeong Lee ,  Yoonhyeung Cho

IPC: H10K50/11 ,  H10K50/16 ,  H10K50/17 ,  H10K50/18 ,  H10K50/19 ,  H10K50/155 ,  H10K50/15 ,  H10K59/123 ,  H10K85/60 ,  H10K101/40 ,  H10K101/10 ,  H10K102/00

CPC classification number: H10K50/11 ,  H10K50/155 ,  H10K50/156 ,  H10K50/16 ,  H10K50/17 ,  H10K50/171 ,  H10K50/18 ,  H10K50/19 ,  H10K59/123 ,  H10K85/624 ,  H10K85/626 ,  H10K2101/10 ,  H10K2101/40 ,  H10K2102/00 ,  H10K2102/351

Abstract: An organic light-emitting device includes an auxiliary layer located between a first electrode and a hole injection layer or a hole transport layer and including a metal fluoride. The metal of the metal fluoride may be a Group III metal having a high work function of 3.8 eV or more. The hole injection barrier at the interface between the first electrode and the hole injection layer may be adjusted by the fluoride of the high work function metal in the auxiliary layer so that the electron-hole charge balance and the efficiency of the organic light-emitting device may be improved.

公开(公告)号：US11700737B2

公开(公告)日：2023-07-11

申请号：US16895842

申请日：2020-06-08

Applicant: Samsung Display Co., Ltd.

Inventor： Dongchan Kim ,  Jiyoung Moon ,  Donghui Lee ,  Jihye Lee ,  Chulsoon Lee ,  Hakchoong Lee ,  Haemyeong Lee ,  Wonsuk Han ,  Jihwan Yoon ,  Yoonhyeung Cho

IPC: H01L51/52 ,  H10K50/19 ,  H10K50/13 ,  H10K59/38 ,  H10K59/123 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K71/00 ,  H10K85/30 ,  H10K85/60 ,  H10K101/30 ,  H10K102/00

CPC classification number: H10K50/19 ,  H10K50/13 ,  H10K59/123 ,  H10K59/38 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/171 ,  H10K71/00 ,  H10K85/30 ,  H10K85/322 ,  H10K85/615 ,  H10K85/626 ,  H10K85/633 ,  H10K85/636 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6574 ,  H10K2101/30 ,  H10K2102/331 ,  H10K2102/351

Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; light-emitting units in the number of n between the first electrode and the second electrode; and a charge-generation unit(s) in the number of n−1 between the adjacent light-emitting units. The light-emitting units each include an emission layer, and at least one of the charge-generation unit(s) includes an n-type charge-generation layer, a p-type charge-generation layer, and an interlayer between the n-type charge-generation layer and the p-type charge-generation layer. The p-type charge-generation layer includes a first material and a second material, the first material includes a hole-transporting organic compound, an inorganic insulation compound, or any combination thereof, the second material includes at least one inorganic semiconductor compound, the interlayer comprises a third material, and the third material is selected from an organic compound, an inorganic semiconductor compound, and an inorganic insulation compound.

公开(公告)号：US20230113809A1

公开(公告)日：2023-04-13

申请号：US17723353

申请日：2022-04-18

Applicant: Samsung Display Co., Ltd.

Inventor： Heungsu Park ,  Namsu Kang ,  Songeun Lee ,  Jongwon Lee ,  Hyunshik Lee ,  Wonsuk Han

IPC: H01L51/00

Abstract: A light emitting device in which: a) an absolute value of a lowest unoccupied molecular orbital (LUMO) energy level of a first electron transporting compound (ET-1) is smaller than an absolute value of a LUMO energy level of a host compound (H-1), b) an absolute value of a LUMO energy level of a second electron transporting compound (ET-2) is smaller than an absolute value of a LUMO energy level of a third electron transporting compound (ET-3), c) and an absolute value of a LUMO energy level of the second electron transporting compound (ET-2) is smaller than an absolute value of a LUMO energy level of the first electron transporting compound (ET-1).

公开(公告)号：US10476036B2

公开(公告)日：2019-11-12

申请号：US15713407

申请日：2017-09-22

Applicant: Samsung Display Co., Ltd.

Inventor： Jihye Lee ,  Dongchan Kim ,  Donghoon Kim ,  Wonjong Kim ,  Jiyoung Moon ,  Dongkyu Seo ,  Dahea Im ,  Sanghoon Yim ,  Yoonhyeung Cho ,  Wonsuk Han

IPC: H01L51/52 ,  H01L51/50 ,  H01L27/32 ,  H01L29/08 ,  H01L35/24 ,  H01L51/00

Abstract: An organic light emitting diode display device includes a substrate, an organic light emitting diode on the substrate and a capping layer on the organic light emitting diode. The capping layer includes metal iodide selected from alkali metal iodide and alkaline-earth metal iodide. The organic light emitting diode may have reduced driving voltage and improved luminous efficiency.