公开(公告)号：US20170133631A1

公开(公告)日：2017-05-11

申请号：US15319050

申请日：2015-07-24

Applicant: Universal Display Corporation

Inventor： Nicholas J. THOMPSON ,  Marc A. BALDO ,  Michael S. WEAVER ,  Vinod M. MENON

IPC: H01L51/52 ,  H01L51/50

CPC classification number: H01L51/5262 ,  H01L51/5044 ,  H01L51/5203 ,  H01L51/5225 ,  H01L51/5234 ,  H01L2251/558

Abstract: A method for improving the operation of an OLED includes maximizing on-radiative transfer of excited state energy from the OLED's organic emissive material to surface plasmon polaritons in an enhancement layer by providing the enhancement layer no more than a threshold distance away from the organic emissive layer; and emitting light into free space from the enhancement layer by scattering the energy from the surface plasmon polaritons through an outcoupling layer that is provided proximate to the enhancement layer but opposite from the organic emissive layer.

公开(公告)号：US20230413590A1

公开(公告)日：2023-12-21

申请号：US18203905

申请日：2023-05-31

Applicant: Universal Display Corporation

Inventor： Haridas MUNDOOR ,  Nicholas J. THOMPSON ,  Vinod M. MENON

IPC: H10K50/115 ,  H10K50/858 ,  H10K50/852

CPC classification number: H10K50/115 ,  H10K50/858 ,  H10K50/852

Abstract: Embodiments of the disclosed subject matter provide a device that may include an organic light emitting device (OLED) having a substrate, a first electrode disposed over the substrate, a second electrode disposed over the first electrode, and an organic emissive layer having a first surface positioned over a second surface is disposed between the first electrode and the second electrode. A nanoparticle layer may be disposed over the organic emissive layer and has a first surface that is positioned over a second surface. The nanoparticle layer may include a first plurality of nanoparticles comprising a dielectric material, and a surrounding medium. A distance from the second surface of the nanoparticle layer to the first surface of the organic emissive layer may be not more than 50 nm, and there may be a difference of at least 1.0 between a refractive index of the dielectric material and the surrounding medium.

公开(公告)号：US20200295307A1

公开(公告)日：2020-09-17

申请号：US16814316

申请日：2020-03-10

Applicant: Universal Display Corporation

Inventor： Michael FUSELLA ,  Nicholas J. THOMPSON ,  Vinod M. MENON

IPC: H01L51/52 ,  G02B5/18

Abstract: Device structures are provided that include an OLED arranged in a stack with one or more additional layers that form a Tamm plasmon stack. The structure allows for coupling emitter excited state energy into the emissive Tamm plasmon mode.

公开(公告)号：US20230413596A1

公开(公告)日：2023-12-21

申请号：US18240942

申请日：2023-08-31

Applicant: Universal Display Corporation

Inventor： Vinod M. MENON ,  Michael FUSELLA ,  Nicholas J. THOMPSON

IPC: H10K50/822 ,  H10K50/85

CPC classification number: H10K50/822 ,  H10K50/115 ,  H10K50/85

Abstract: Embodiments of the disclosed subject matter provide a device including one or more organic layers that include an emissive layer, a first electrode layer disposed over the one or more organic layers, a plurality of nanostructures formed as part of the first electrode layer, a substrate, a second electrode layer, where the second electrode layer is disposed on the substrate, the one or more organic layers are disposed on the second electrode layer, and the first electrode layer including the plurality of nanostructures is disposed on the one or more organic layers and within the predetermined threshold distance of the emissive layer.

公开(公告)号：US20220149315A1

公开(公告)日：2022-05-12

申请号：US17564315

申请日：2021-12-29

Applicant: Universal Display Corporation

Inventor： Vinod M. MENON ,  Michael FUSELLA ,  Nicholas J. THOMPSON

IPC: H01L51/52

Abstract: Embodiments of the disclosed subject matter provide a device including one or more organic layers that include an emissive layer, a first electrode layer disposed over the one or more organic layers, a plurality of nanostructures formed as part of the first electrode layer, a substrate, a second electrode layer, where the second electrode layer is disposed on the substrate, the one or more organic layers are disposed on the second electrode layer, and the first electrode layer including the plurality of nanostructures is disposed on the one or more organic layers and within the predetermined threshold distance of the emissive layer.

公开(公告)号：US20200295293A1

公开(公告)日：2020-09-17

申请号：US16814256

申请日：2020-03-10

Applicant: Universal Display Corporation

Inventor： Vinod M. MENON ,  Michael FUSELLA ,  Nicholas J. THOMPSON

IPC: H01L51/52

Abstract: Embodiments of the disclosed subject matter provide a device including one or more organic layers that include an emissive layer, a first electrode layer disposed over the one or more organic layers, a plurality of nanostructures formed as part of the first electrode layer, a substrate, a second electrode layer, where the second electrode layer is disposed on the substrate, the one or more organic layers are disposed on the second electrode layer, and the first electrode layer including the plurality of nanostructures is disposed on the one or more organic layers and within the predetermined threshold distance of the emissive layer.

公开(公告)号：US20180219182A1

公开(公告)日：2018-08-02

申请号：US15935233

申请日：2018-03-26

Applicant: Universal Display Corporation

Inventor： Nicholas J. THOMPSON ,  Marc A. BALDO ,  Michael S. WEAVER ,  Vinod M. MENON

IPC: H01L51/52 ,  H01L51/50

CPC classification number: H01L51/5262 ,  H01L51/5044 ,  H01L51/5203 ,  H01L51/5225 ,  H01L51/5234 ,  H01L2251/558

Abstract: An OLED is disclosed that includes an enhancement layer having optically active metamaterials, or hyperbolic metamaterials, which transfer radiative energy from the organic emissive material to a non-radiative mode, wherein the enhancement layer is disposed over the organic emissive layer opposite from the first electrode, and is positioned no more than a threshold distance away from the organic emissive layer, wherein the organic emissive material has a total non-radiative decay rate constant and a total radiative decay rate constant due to the presence of the enhancement layer, and the threshold distance is where the total non-radiative decay rate constant is equal to the total radiative decay rate constant; and an outcoupling layer disposed over the enhancement layer, wherein the outcoupling layer scatters radiative energy from the enhancement layer to free space.