公开(公告)号：US20240324454A1

公开(公告)日：2024-09-26

申请号：US18603088

申请日：2024-03-12

申请人： Samsung Display Co., Ltd.

发明人： Hyunyoung Kim ,  Hyunwoo Lee

IPC分类号： H10K85/60 ,  C09K11/06 ,  H10K50/15 ,  H10K50/16 ,  H10K85/30 ,  H10K85/40 ,  H10K101/00 ,  H10K101/25 ,  H10K101/60

CPC分类号： H10K85/6572 ,  C09K11/06 ,  H10K50/15 ,  H10K50/16 ,  H10K85/346 ,  H10K85/40 ,  H10K85/631 ,  H10K85/654 ,  H10K85/6574 ,  H10K85/658 ,  H10K2101/25 ,  H10K2101/27 ,  H10K2101/60

摘要： An organic light-emitting device and an electronic apparatus including the same are provided. The organic light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer provided between the first electrode and the second electrode and including an emission layer, wherein the emission layer includes a first compound that is a hole-transporting compound, a second compound that is an electron-transporting compound, a third compound capable of emitting phosphorescence, and a fourth compound capable of emitting delayed fluorescence, and a value of R0 is at least 3.5 nm.

公开(公告)号：US20240292644A1

公开(公告)日：2024-08-29

申请号：US18576760

申请日：2022-07-12

申请人： ZHEJIANG UNIVERSITY ,  Najing Technology Corporation Limited

发明人： Xiaogang PENG ,  Xing LIN ,  Xingliang DAI

IPC分类号： H10K50/115 ,  H10K101/60

CPC分类号： H10K50/115 ,  H10K2101/60

摘要： A light-emitting device and method for using quantum dot LEDs are provided in the present application. The light-emitting device includes at least one quantum dot LED, wherein the quantum dot LED includes a first electrode, an electron transport layer, a quantum dot layer, a hole transport layer, and a second electrode which are sequentially stacked; a fluorescence quantum yield of quantum dots in the quantum dot layer is equal to or greater than 50%; a ratio of an average photon voltage to an operating voltage of the quantum dot LED is equal to or greater than 1; electroluminescence of the quantum dot LED includes thermoelectrically-assisted up-conversion luminescence. The quantum dot LED can achieve higher external power conversion efficiency in the light-emitting device.

公开(公告)号：US20240251585A1

公开(公告)日：2024-07-25

申请号：US18288147

申请日：2022-04-26

申请人： IDEMITSU KOSAN CO.,LTD.

发明人： Tetsuya MASUDA ,  Satomi TASAKI ,  Hiroaki TOYOSHIMA ,  Masato NAKAMURA ,  Kazuki NISHIMURA ,  Hiroaki ITOI ,  Emiko KAMBE

IPC分类号： H10K50/13 ,  H10K50/15 ,  H10K59/35 ,  H10K101/60

CPC分类号： H10K50/131 ,  H10K50/156 ,  H10K59/35 ,  H10K2101/60

摘要： An organic EL device includes: an anode; a cathode; an emitting region; and a hole transporting zone, in which the emitting region includes a first emitting layer containing a first host material and a second emitting layer containing a second host material, at least one organic layer in the hole transporting zone is a first organic layer, the first organic layer contains a hole transporting zone material, the first emitting layer is disposed close to the anode, and a triplet energy of the first host material T1(H1) and a triplet energy of the second host material T1(H2) satisfy Numerical Formula 1, and a dipole of the first host material is 0.4 D or more,


T1(H1)>T1(H2)  (Numerical Formula 1).

公开(公告)号：US20240237510A1

公开(公告)日：2024-07-11

申请号：US17913791

申请日：2021-11-09

申请人： BOE Technology Group Co., Ltd.

发明人： Rongrong GAO ,  Lei CHEN

IPC分类号： H10K85/60 ,  H10K50/11 ,  H10K50/16 ,  H10K101/40 ,  H10K101/60

CPC分类号： H10K85/615 ,  H10K85/624 ,  H10K85/626 ,  H10K85/654 ,  H10K85/6574 ,  H10K50/11 ,  H10K50/16 ,  H10K2101/40 ,  H10K2101/60

摘要： The present disclosure provides an organic light-emitting diode structure and a display device. In the organic light-emitting diode structure, the light-emitting layer, the hole blocking layer and the electron blocking layer satisfy the following conditions: T1 (HBL)>T1 (Host); T1 (EBL)>T1 (Host); T1 (Dopant)>T1 (Host); S1 (Host)>S1 (Dopant); wherein T1 (HBL) is the lowest triplet energy of the hole blocking layer material, T1 (Host) is the lowest triplet energy of the host material, T1 (EBL) is the lowest triplet energy of the electron blocking layer material, T1 (Dopant) is the lowest triplet energy of the guest material, S1 (Host) is the lowest singlet energy of the host material, and S1 (Dopant) is the lowest singlet energy of the guest material.

公开(公告)号：US11889758B2

公开(公告)日：2024-01-30

申请号：US17045563

申请日：2019-04-03

申请人： NORTH CAROLINA STATE UNIVERSITY

发明人： Franky So ,  Amin Salehi ,  Felix N. Castellano

IPC分类号： H10K85/60 ,  C09K11/06 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K101/10 ,  H10K101/30 ,  H10K101/60 ,  H10K102/00

CPC分类号： H10K85/6572 ,  C09K11/06 ,  H10K85/615 ,  H10K85/631 ,  C09K2211/1018 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/171 ,  H10K2101/10 ,  H10K2101/30 ,  H10K2101/60 ,  H10K2102/351

摘要： Disclosed herein are organic light emitting diode (OLED) devices and methods of use thereof. In one embodiment, an organic light emitting diode (OLED) device includes an emitting layer including: a host and an emitter, wherein the host exhibits triplet-triplet annihilation up-conversion, wherein the emitter has a band gap and exhibits triplet-triplet annihilation up-conversion, wherein the host and the emitter are different, and wherein the emitter has a concentration of 5% or more in the emitting layer.