公开(公告)号：US20230119261A1

公开(公告)日：2023-04-20

申请号：US18064787

申请日：2022-12-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyojeong KIM ,  Minje KIM ,  Eungdo KIM ,  Hyunyoung KIM ,  Hyosup SHIN ,  Seokgyu YOON ,  Youngki LEE ,  Jungsub LEE ,  Jiyoung LEE ,  Hyejin JUNG ,  Kunwook CHO ,  Hyeongu CHO ,  Minsoo CHOI ,  Youngeun CHOI ,  Jaejin LYU

IPC: H01L51/00 ,  C09K11/06

Abstract: An organic light-emitting device having improved efficiency and lifespan includes: a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode, wherein the organic layer includes an emission layer, the emission layer includes a first compound, a second compound, a third compound, and a fourth compound, the first compound, the second compound, the third compound, and the fourth compound are different from each other, the third compound includes a metal element having an atomic number of 40 or more, the fourth compound includes boron (B), the third compound and the fourth compound each satisfy Conditions 1-1 and 1-2 below, and the fourth compound satisfies Condition 2 or 3: T1(C3)onset≥S1(C4)onset  Condition 1-1 T1(C3)max≥S1(C4)max  Condition 1-2 KRISC(C4)≥103 S−1  Condition 2 f(C4)≥0.1.  Condition 3

公开(公告)号：US20210249606A1

公开(公告)日：2021-08-12

申请号：US17160205

申请日：2021-01-27

Applicant: Samsung Display Co., Ltd.

Inventor： Seokgyu YOON ,  Eungdo KIM ,  Hyosup SHIN ,  Jaejin LYU ,  Jaeyong LEE ,  Hyeongu CHO

IPC: H01L51/00

Abstract: A light-emitting device includes: a first electrode; a hole injection layer; a hole transport layer; an emission layer; an electron transport region; and a second electrode, stacked in order, wherein the hole transport layer and the hole injection layer are different from each other, the hole injection layer includes a first inorganic material, the first inorganic material is an oxide of at least one metal selected from tungsten (W), molybdenum (Mo), zinc (Zn), copper (Cu), nickel (Ni), cobalt (Co), gallium (Ga), and germanium (Ge), the first inorganic material has a work function with an absolute value of about 4.3 eV to about 5.3 eV, and the hole injection layer and the hole transport layer satisfy Equations 1 and 2: |ELUMO_HIL|>|ELUMO_HTL|+0.1 eV  Equation 1 |EHOMO_HIL|>|EHOMO_HTL|+0.1 eV.  Equation 2

公开(公告)号：US20170047379A1

公开(公告)日：2017-02-16

申请号：US15144848

申请日：2016-05-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sanghoon YIM ,  Dongchan KIM ,  Wonjong KIM ,  Eungdo KIM ,  Dongkyu SEO ,  Okkeun SONG ,  Jihye LEE ,  Dahea IM ,  Yoonhyeung CHO ,  Wonsuk HAN

IPC: H01L27/32 ,  H01L51/52

CPC classification number: H01L51/5253 ,  H01L27/3211 ,  H01L27/3244 ,  H01L29/4908 ,  H01L51/0545 ,  H01L51/504 ,  H01L51/5237 ,  H01L51/5275 ,  H01L51/5281

Abstract: An organic light-emitting display apparatus, including a substrate; a first electrode on the substrate; a second electrode on the first electrode; a first organic emissive layer between the first electrode and the second electrode, the first organic emissive layer to emit a first light; a second organic emissive layer between the first electrode and the second electrode, the second organic emissive layer to emit a second light having a different color from the first light; an auxiliary layer on the second electrode, the auxiliary layer having a refractive index equal to or higher than about 2.2; and a charging layer on the auxiliary layer.

Abstract translation: 一种有机发光显示装置，包括：基板; 基板上的第一电极; 第一电极上的第二电极; 在第一电极和第二电极之间的第一有机发射层，发射第一光的第一有机发射层; 在所述第一电极和所述第二电极之间的第二有机发射层，所述第二有机发射层发射具有与所述第一光不同的颜色的第二光; 在第二电极上的辅助层，辅助层的折射率等于或高于约2.2; 和辅助层上的充电层。