Princeton University

Universal Display Corporation

University of Southern California

Battelle Memorial Institute

Other

Samsung Display Co., Ltd.

Vitex Systems, Inc.

Batlelle Japan Corporation

Paul E Burrows

Stephen R Forrest

Mark Edward Thompson

Vladimir Bulovic

Linda Susan Sapochak

Ruiqing Ma

Gordon Lee Graff

Peter Maclyn Martin

Mark Edward Gross

Yujian You

Huiqing Pang

Andrei Shoustikov

Siddharth Harikrishna Mohan

Scott F Sibley

Gong Gu

Marc A Baldo

Sergey Lamansky

Emory Krall

Peter Levermore

Dennis Matthew McCarty

Raymond Kwong

Dmitri Z Garbuzov

Kamala Rajan

Drew Murphy

Feras Abdel-Razzaq

Julia J Brown

John D Affinito

Charles C Bonham

Jason Paynter

Eric Sidney Mast

Gautam Parthasarathy

Gregory McGraw

Peter I Djurovich

Lorenza Moro

Xi Chu

Kenneth Jeffrey Nelson

Mac R Zumhoff

Peter Djurovic

Vladimir Sinisa Ban

Zilan Shen

Michael G Hall

Changsoon Kim

Peifang Tian

Vladimir Kozlov

Chihaya Adachi

Wendy D Bennett

Theodore Zhou

Mark C Thompson

Martin Rosenblum

John Chris Pagano

J Chris Pagano

Ruiqing (Ray) Ma

Julie Brown

Jon Andrew Cronin

Michael G Hack

Vadim Adamovich

Michael Stuart Weaver

Vincent Daniel McGinniss

Steven Risser

Prashant Mandlik

Nicos A Petasis

Jeffrey J Schwartz

Jeffrey Silvernail

David W Nippa

Vladimir G Kozlov

Julie J Brown

Nicole Rutherford

Martin Philip Rosenblum

Michael O'Connor

Asanga B Padmaperuma

Hiroshi Mataki

Ming-Kun Shi

Dimitri Z Garbuzov

Rajan Kamala

Sambhu N Kundu

Siddarth Harikrishna Mohan

Asanga Bimalchandra

Robert Walty

Gregory Mcgraw

Stephen Forrest

Changsoon Princeton University Kim

Nozzle designs which have been found to be effective in governing overspray in OVJP are provided. Aspects of the invention have been found to be effective in reducing or avoiding sudden pressure drops at the end of the nozzle close to the substrate, and may be advantageously employed in obtaining, for example, greater consistency between the nozzle outlet diameter and the deposited pattern width.

Nozzle design for organic vapor jet printing

Luminaires and luminaire components are provided that may include emissive, index-matching, and/or outcoupling components that are replaceable separately from other components of the luminaire. In some embodiments, an index-matching component may include a gel sheet or pad that can be disposed between an emissive component and an outcoupling component. The index-matching component may be replaceable separately from the emissive and outcoupling components. In some embodiments, an emissive component including an OLED panel and/or an index-matching component may be replaceable separately from other components of the luminaire.

Luminaire and individually replaceable components

An emissive layer deposited in graded manner using a plurality of nozzles is disclosed. A mixtures ejected from the plurality of nozzles may contain varying concentrations of host-to-dopant material. The nozzles, as disclosed, may be arranged in a sequential manner such that the order of the sequence is based on varying concentration of the host-to-dopant material. The nozzles may be configured to translate relative to an area of a substrate to allow sequential deposition.

OVJP for printing graded/stepped organic layers

A tool for depositing multilayer coatings onto a substrate. The tool includes a housing defining a vacuum chamber connected to a vacuum source, deposition stations each configured to deposit a layer of multilayer coating on the substrate, a curing station, and a contamination reduction device. At least one of the deposition stations is configured to deposit an inorganic layer, while at least one other deposition station is configured to deposit an organic layer. In one tool configuration, the substrate may travel back and forth through the tool as many times as needed to achieve the desired number of layers of multilayer coating. In another, the tool may include numerous housings adjacently spaced such that the substrate may make a single unidirectional pass. The contamination reduction device may be configured as one or more migration control chambers about at least one of the deposition stations, and further includes cooling devices, such as chillers, to reduce the presence of vaporous layer precursors. The tool is particularly well-suited to depositing multilayer coatings onto flexible substrates, as well as to encapsulating environmentally-sensitive devices placed on the flexible substrate.

Apparatus for depositing a multilayer coating on discrete sheets

Methods of fabricating a device having laterally patterned first and second sub-devices, such as subpixels of an OLED, are provided. Exemplary methods may include depositing via organic vapor jet printing (OVJP) a first organic layer of the first sub-device and a first organic layer of the second sub-device. The first organic layer of the first sub-device and the first organic layer of the second sub-device are both the same type of layer, but have different thicknesses. The type of layer is selected from an ETL, an HTL, an HIL, a spacer and a capping layer.

Patterning method for OLEDs

Organic light emitting devices are disclosed which are comprised of a heterostructure for producing electroluminescence wherein the heterostructure is comprised of an emissive layer containing a phosphorescent dopant compound. For example, the phosphorescent dopant compound may be comprised of platinum octaethylporphine (PtOEP), which is a compound having the chemical structure with the formula: 

OLEDs doped with phosphorescent compounds

Devices and components are provided that include a curved outcoupling component and an OLED, where the outcoupling component provides up to 100% outcoupling of light emitted by the OLED into air. The outcoupling component has an outer radius R and includes a material with a refractive index n. The OLED is in optical communication with the outcoupling component and disposed such that each emissive element of the OLED is within a distance r measured from the center of curvature of the surface at the outer radius R, such that R&#x2212;r&#x3e;(n&#x2212;1)r.

OLED optically coupled to curved substrate

Systems, and methods for the design and fabrication of OLEDs, including large-area OLEDs with metal bus lines, are provided. For a given panel area dimension, target luminous emittance, OLED device structure and efficiency, and electrical resistivity and thickness of the bus line material and electrode onto which the bus lines are disposed, a bus line pattern may be designed to optimize Fill Factor (FF), Luminance Uniformity (U) and Power Loss (PL). Example designs may be to maximize FF, maximize U and minimize PL. or define minimum criteria for U and a maximum criteria for PL, and then to optimize the bus line layout to maximize FF. OLED panels including bus lines with different resistances along the bus line are also described.

Method of forming bus line designs for large-area OLED lighting

Systems and methods for the design and fabrication of OLEDs, including high-performance large-area OLEDs, are provided. Variously described fabrication processes may be used to deposit and pattern bus lines with a smooth profile and a gradual sidewall transition. Such smooth profiles may, for example, reduce the probability of electrical shorting at the bus lines. Accordingly, in certain circumstances, an insulating layer may no longer be considered essential, and may be optionally avoided altogether. In cases where an insulating layer is not used, further enhancements in the emissive area and shelf life of the device may be achieved as well. According to aspects of the invention, bus lines such as those described herein may be deposited, and patterned, using vapor deposition such as vacuum thermal evaporation (VTE) through a shadow mask, and may avoid multiple photolithography steps. Other vapor deposition systems and methods may include, among others, sputter deposition, e-beam evaporation and chemical vapor deposition (CVD). A final profile of the bus line may substantially correspond to the profile as deposited.

Process for fabricating metal bus lines for OLED lighting panels

An organic solid state lighting system comprising multiple OLED modules connected in series is provided.

Light emitters with series connection

Embodiments may provide an extendable light source with a variable light emitting area. A first device is provided that includes a support, a first substrate movably coupled to the support, and a plurality of lighting devices disposed on the first substrate. The plurality of lighting devices includes a first portion of lighting devices and a second portion of lighting devices. The first device also includes an energizing component that is configured to selectively energize the first portion and the second portion of lighting devices based on a position of the first substrate relative to the support.

Organic electroluminescent materials and devices

Embodiments disclosed herein provide devices having a nozzle die with one or more nozzles, each of which has one or more integrated skimmers. The use of an integrated nozzle/skimmer structure allows for higher-resolution printing in OVJP-type deposition techniques without requiring the use of a shadow mask by allowing for a relatively narrow organic material beam that can be placed at relatively high distances away from the substrate.

Deposition of patterned organic thin films

Growing community of inventors

Princeton Junction, NJ, United States of America

Paul E Burrows