公开(公告)号：US20240418946A1

公开(公告)日：2024-12-19

申请号：US18678654

申请日：2024-05-30

Applicant: The Trustees of Princeton University ,  Universal Display Corporation

Inventor： Simon Bilodeau ,  Michael Hack ,  Paul Prucnal ,  Eli A. Doris ,  Michael S. Weaver

IPC: G02B6/42

Abstract: A light emitting device comprises a waveguide, a downconverting thin-film stack in optical communication with the waveguide, and an OLED thin-film stack in optical communication with the downconverting thin-film stack. An integrated photonic system comprises the downconverted as described above, wherein the downconverted OLED stack is integrated with a silicon photonic chip or CMOS photonic chip. A method for providing pump light for a silicon photonic integrated circuit comprises providing the integrated photonic as described above, producing light via the OLED thin-film stack; downconverting the produced light via the downconverting thin-film stack, and guiding the downconverted light via the waveguide.

公开(公告)号：US12010859B2

公开(公告)日：2024-06-11

申请号：US16867073

申请日：2020-05-05

Applicant: UNIVERSAL DISPLAY CORPORATION

Inventor： Chun Lin ,  Tyler Fleetham ,  Michael S. Weaver

IPC: H01L51/50 ,  H10K50/11 ,  H10K101/00 ,  H10K101/10

CPC classification number: H10K50/11 ,  H10K2101/10 ,  H10K2101/27

Abstract: Provided is an OLED that includes in its emissive region a first compound, a second compound, and a third compound, where the first compound is capable of functioning as a phosphorescent emitter in an OLED at room temperature, the second compound meets at least one of the following conditions:



(1) the second compound is capable of functioning as a TADF emitter in an OLED at room temperature; and
(2) the second compound is capable of forming an exciplex with the first compound in an OLED at room temperature, and the third compound is a fluorescent compound that functions as an emitter in the OLED of the present disclosure at room temperature.

公开(公告)号：US11832474B2

公开(公告)日：2023-11-28

申请号：US18088866

申请日：2022-12-27

Applicant: Universal Display Corporation

Inventor： Nicholas J. Thompson ,  Marc A. Baldo ,  Michael S. Weaver ,  Vinod M. Menon

IPC: H10K50/85 ,  H10K50/13 ,  H10K50/805 ,  H10K50/828 ,  H10K50/822 ,  H10K102/00

CPC classification number: H10K50/85 ,  H10K50/131 ,  H10K50/805 ,  H10K50/828 ,  H10K50/822 ,  H10K2102/351

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.

公开(公告)号：US11751455B2

公开(公告)日：2023-09-05

申请号：US16420638

申请日：2019-05-23

Applicant: UNIVERSAL DISPLAY CORPORATION

Inventor： Michael S. Weaver ,  Michael Hack

IPC: H10K59/35 ,  H10K50/852 ,  H10K50/858 ,  H10K50/844 ,  H10K59/38 ,  H10K59/30 ,  H10K50/86 ,  H10K50/85

CPC classification number: H10K59/35 ,  H10K50/8445 ,  H10K50/85 ,  H10K50/852 ,  H10K50/858 ,  H10K50/86 ,  H10K59/30 ,  H10K59/38

Abstract: An apparatus that includes a plurality of OLEDs provided on a first substrate is disclosed. Each OLED includes a first electrode, a second electrode disposed over the first electrode, and an organic electroluminescent material disposed between the first and the second electrodes. The apparatus also includes a first capping layer that is disposed over the second electrode of at least a first portion of the plurality of OLEDs such that the first capping layer is optically coupled to at least the first portion of the plurality of OLEDs, and a second capping layer. The second capping layer is disposed over the second electrode of at least a second portion of the plurality of OLEDs such that the second capping layer is optically coupled to the second portion of the plurality of OLEDs but not the first portion of the plurality of OLEDs, and the second portion of the plurality of OLEDs is different from the first portion of the plurality of OLEDs.

公开(公告)号：US11641774B2

公开(公告)日：2023-05-02

申请号：US16897694

申请日：2020-06-10

Applicant: Universal Display Corporation

Inventor： Vadim Adamovich ,  Lichang Zeng ,  Ting-Chih Wang ,  Chuanjun Xia ,  Michael S. Weaver

IPC: H01L51/00 ,  C09K11/06 ,  C23C14/24 ,  H01L51/56 ,  C23C14/12 ,  H01L51/50

Abstract: A method for fabricating an OLED using a mixture that is an evaporation source for a vacuum deposition process includes providing a container that contains the mixture, providing a substrate having a first electrode disposed thereon, depositing an organic layer over the first electrode by evaporating the mixture in the container in a high vacuum deposition tool, and depositing a second electrode over the organic layer.

公开(公告)号：US11424419B2

公开(公告)日：2022-08-23

申请号：US16853899

申请日：2020-04-21

Applicant: Universal Display Corporation

Inventor： Eric A. Margulies ,  Zhiqiang Ji ,  Jui-Yi Tsai ,  Chun Lin ,  Alexey Borisovich Dyatkin ,  Mingjuan Su ,  Bin Ma ,  Michael S. Weaver ,  Julia J. Brown ,  Lichang Zeng ,  Walter Yeager ,  Alan DeAngelis ,  Chuanjun Xia

IPC: H01L51/00 ,  C09K11/06 ,  C07F15/00 ,  H01L51/52 ,  H01L51/50

Abstract: A compound is disclosed that has a metal coordination complex structure having at least two ligands coordinated to the metal; wherein the compound has a first substituent R1 at one of the ligands' periphery; wherein a first distance is defined as the distance between the metal and one of the atoms in R1 where that atom is the farthest away from the metal among the atoms in R1; wherein the first distance is also longer than any other atom-to-metal distance between the metal and any other atoms in the compound; and wherein when a sphere having a radius r is defined whose center is at the metal and the radius r is the smallest radius that will allow the sphere to enclose all atoms in the compound that are not part of R1, the first distance is longer than the radius r by at least 2.9 Δ.

公开(公告)号：US20220020945A1

公开(公告)日：2022-01-20

申请号：US17491646

申请日：2021-10-01

Applicant: Universal Display Corporation

Inventor： Hitoshi Yamamoto ,  Xin Xu ,  Michael S. Weaver ,  Vadim Adamovich

IPC: H01L51/50

Abstract: The present invention relates to OLED devices and stacks for OLED devices that include a symmetric emissive-layer architecture. In one embodiment, the present invention relates to an emissive stack having three layers, wherein the top and bottom layers emit light in the same or similar color region while the middle layer emits light in a different color region than the other two layers. In such an embodiment, the three layers are in contact with each other with no other layers in between. The symmetric emissive-layer architecture of the present invention can be used to improve the color stability of OLED devices.

公开(公告)号：US11075363B2

公开(公告)日：2021-07-27

申请号：US16522828

申请日：2019-07-26

Applicant: Universal Display Corporation

Inventor： Nicholas J. Thompson ,  Marc A. Baldo ,  Michael S. Weaver ,  Vinod M. Menon

IPC: H01L51/52 ,  H01L51/50

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.

公开(公告)号：US10749113B2

公开(公告)日：2020-08-18

申请号：US14863768

申请日：2015-09-24

Applicant: Universal Display Corporation

Inventor： Vadim Adamovich ,  Lichang Zeng ,  Ting-Chih Wang ,  Chuanjun Xia ,  Michael S. Weaver

IPC: H01L51/00 ,  C09K11/06 ,  H01L51/50

Abstract: A mixture containing three different compounds that is useful as a stable co-evaporation source material for a vacuum deposition tool is disclosed. The mixture comprises a first compound; a second compound; and a third compound that are all organic compounds and have different chemical structures from each other and each has an evaporation temperature T1, T2, and T3, respectively, in the range of 150 to 350° C. T1, T2, and T3 differ from each other by less than 20° C. The first compound has a concentration C1 in the first mixture and a concentration C2 in a film deposited by evaporating the first mixture in a high vacuum deposition tool under a predefined deposition condition where |(C1−C2)/C1| is less than 5%.

公开(公告)号：US20180237463A1

公开(公告)日：2018-08-23

申请号：US15890750

申请日：2018-02-07

Applicant: Universal Display Corporation

Inventor： Lichang Zeng ,  Zhiqiang Ji ,  Eric A. Margulies ,  Paul M. Lahti ,  Michael S. Weaver

IPC: C07F15/00 ,  H01L51/00 ,  C09K11/06 ,  H01L51/50 ,  H01L51/52

CPC classification number: C07F15/0033 ,  C09K11/06 ,  C09K2211/1029 ,  C09K2211/1033 ,  C09K2211/185 ,  H01L51/0085 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5024 ,  H01L51/5056 ,  H01L51/5092 ,  H01L51/5096 ,  H01L51/5206 ,  H01L51/5221

Abstract: A compound having the formula Ir(LA)n(LB)3-n, having the structure Formula I, is disclosed. In Formula I, Z1, Z2, Z3, and Z4 each independently are N or CR2; X is O, S, or Se; n is an integer from 1 to 3; R1, R2, R3, R4, and R5 each independently represent mono- to a maximum possible number of substitutions, or no substitution; R1, R2, R3, R4, and R5 are each independently selected from a variety of substituents; any two substitutions in R1, R2, R3, R4, and R5 are optionally joined to form a ring; at least one pair of substitutions in R1, R2, R3, R4, and R5 are joined together to form a bridge structure comprising a backbone structure that forms a fused first ring, which can be further substituted; and the backbone structure is saturated. Organic light emitting devices and consumer products containing the compounds are also disclosed.