公开(公告)号：US12161003B2

公开(公告)日：2024-12-03

申请号：US18201621

申请日：2023-05-24

Applicant: LG DISPLAY CO., LTD.

Inventor： EunJung Park

IPC: H10K50/11 ,  H10K50/13 ,  H10K50/15 ,  H10K50/16 ,  H10K50/19 ,  H10K59/32 ,  H10K85/30 ,  H10K85/60 ,  H10K101/30 ,  H10K101/40

Abstract: Discussed is an organic light emitting display device including an anode, a first emission part on the anode, and including a first hole transfer layer, a first emission layer, and a first electron transfer layer, a second emission part on the first emission part, and including a second hole transfer layer, a second emission layer, and a second electron transfer layer, and a cathode on the second emission part. At least one among the first emission part and the second emission part can include an emission control layer having an absolute value of a HOMO energy level which is larger than an absolute value of a HOMO energy level of the first hole transfer layer or the second hole transfer layer. A hole mobility of the emission control layer is 1.0×10−1 cm2/Vs to 1.0×10−2 cm2/Vs lower than a hole mobility of the first hole transfer layer or the second hole transfer layer.

公开(公告)号：US10978656B2

公开(公告)日：2021-04-13

申请号：US16852096

申请日：2020-04-17

Applicant: LG DISPLAY CO., LTD.

Inventor： EunJung Park

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

Abstract: An organic light emitting display device includes a plurality of pixels on a substrate, the plurality of pixels having a red subpixel, a green subpixel, and a blue subpixel; an anode on the substrate; a first hole transfer layer on the anode; a first emission layer on the first hole transfer layer in the red subpixel, the green subpixel, and the blue subpixel; a first electron transfer layer on the first emission layer; an N-type charge generation layer on the first electron transfer layer; a second hole transfer layer on the N-type charge generation layer; a second emission layer on the second hole transfer layer in the red subpixel, the green subpixel, and the blue subpixel; a second electron transfer layer on the second emission layer; and a cathode on the second electron transfer layer,

公开(公告)号：US10374183B2

公开(公告)日：2019-08-06

申请号：US15244871

申请日：2016-08-23

Applicant: LG DISPLAY CO., LTD.

Inventor： EunJung Park

IPC: H01L51/54 ,  H01L51/50 ,  H01L51/52 ,  H01L27/32 ,  H01L51/00

Abstract: Discussed is an organic light emitting display device. The organic light emitting display device may include an anode on a substrate, a first emission part that is disposed on the anode and includes a first emission layer and a first electron transfer layer, a second emission part that is disposed on the first emission part and includes a second emission layer and a second electron transfer layer, and a cathode on the second emission part. At least one among the first electron transfer layer and the second electron transfer layer may include a first material and a second material, and an absolute value of a LUMO energy level of the first material may be larger than an absolute value of a LUMO energy level of the second material.

公开(公告)号：US20170069865A1

公开(公告)日：2017-03-09

申请号：US15188377

申请日：2016-06-21

Applicant: LG Display Co., Ltd.

Inventor： EunJung Park

IPC: H01L51/50 ,  F21S8/10 ,  H01L51/52

CPC classification number: H01L51/5004 ,  F21S41/155 ,  F21S43/145 ,  F21S45/10 ,  H01L27/3209 ,  H01L51/5072 ,  H01L51/5092 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/5278 ,  H01L2251/301 ,  H01L2251/552 ,  H01L2251/556

Abstract: An organic light emitting display device and a light apparatus for vehicles using the same are provided. The organic light emitting display device includes a first layer on a first electrode, a second layer on the first layer, a second electrode on the second layer, and an N-type charge generation layer between the first layer and the second layer. The first layer includes a first emission layer and a first electron transport layer, and the second layer includes a second emission layer and a second electron transport layer. A low unoccupied molecular orbitals (LUMO) level of the first electron transport layer is higher than a LUMO level of a host included in the N-type charge generation layer.

Abstract translation: 提供了一种有机发光显示装置和使用该有机发光显示装置的车辆的照明装置。 有机发光显示装置包括第一电极上的第一层，第一层上的第二层，第二层上的第二电极和第一层和第二层之间的N型电荷产生层。 第一层包括第一发射层和第一电子传输层，第二层包括第二发射层和第二电子传输层。 第一电子传输层的低未占分子轨道（LUMO）水平高于包含在N型电荷产生层中的主体的LUMO能级。