Stacked white OLED having separate red, green and blue sub-elements

Forrest, Stephen; Qi, Xiangfei; Slootsky, Michael

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Title: Stacked white OLED having separate red, green and blue sub-elements

Abstract

The present invention relates to efficient organic light emitting devices (OLEDs). More specifically, the present invention relates to white-emitting OLEDs, or WOLEDs. The devices of the present invention employ three emissive sub-elements, typically emitting red, green and blue, to sufficiently cover the visible spectrum. The sub-elements are separated by charge generating layers.

Inventors:: Forrest, Stephen; Qi, Xiangfei; Slootsky, Michael

Issue Date:: 2015-06-23

Research Org.:: Univ. of Michigan, Ann Arbor, MI (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1185285

Patent Number(s):: 9065067

Application Number:: 14/287,272

Assignee:: The Regents of the University of Michigan (Ann Arbor, MI)

Patent Classifications (CPCs):: H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

Show more

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
H01L51/5036 - {Multi-colour light emission, e.g. colour tuning, polymer blend, stack of electroluminescent layers}
H01L51/5004 - {characterised by the interrelation between parameters of constituting active layers, e.g. HOMO-LUMO relation}
H01L2251/303 - Oxides, e.g. metal oxides
H01L27/3211 - {using RGB sub-pixels}
H01L27/3206 - {Multi-colour light emission}
H01L2251/308 - composed of indium oxides, e.g. ITO
H01L51/5016 - {Triplet emission}
H01L2251/552 - HOMO-LUMO-EF
H01L51/5278 - {comprising a repetitive electroluminescent unit between one set of electrodes}
H01L27/3209 - {using stacked OLED}
H01L51/504 - {Stack of electroluminescent layers}

Show less

DOE Contract Number:: FG02-07ER84809

Resource Type:: Patent

Resource Relation:: Patent File Date: 2014 May 27

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION

Citation Formats


                    Forrest, Stephen, Qi, Xiangfei, and Slootsky, Michael. Stacked white OLED having separate red, green and blue sub-elements.  United States: N. p., 2015. 
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                    Forrest, Stephen, Qi, Xiangfei, & Slootsky, Michael. Stacked white OLED having separate red, green and blue sub-elements.  United States.

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                    Forrest, Stephen, Qi, Xiangfei, and Slootsky, Michael. Tue .  
        "Stacked white OLED having separate red, green and blue sub-elements".  United States.  https://www.osti.gov/servlets/purl/1185285.

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@article{osti_1185285,

  title        = {Stacked white OLED having separate red, green and blue sub-elements},

  author       = {Forrest, Stephen and Qi, Xiangfei and Slootsky, Michael},

  abstractNote = {The present invention relates to efficient organic light emitting devices (OLEDs). More specifically, the present invention relates to white-emitting OLEDs, or WOLEDs. The devices of the present invention employ three emissive sub-elements, typically emitting red, green and blue, to sufficiently cover the visible spectrum. The sub-elements are separated by charge generating layers.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2015},

  month        = {6}

}

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US Patent Application 12/257638; 20090278444
URL: https://ppubs.uspto.gov/pubwebapp/external.html?q=(20090278444).pn.&db=US-PGPUB&type=ids

Organic Compound, Charge-Transporting Material, Composition for Charge-Transporting Material and Organic Electroluminescent Device
patent-application, November 2009

Iida, Koichiro; Kawamura, Yuichiro; Ogata, Tomoyuki
US Patent Application 12/095024; 20090284134
URL: https://ppubs.uspto.gov/pubwebapp/external.html?q=(20090284134).pn.&db=US-PGPUB&type=ids

Composition for Use in Organic Device, Polymer Film, and Organic Electroluminescent Element
patent-application, February 2010

Okabe, Kazuki; Ogata, Tomoyuki; Iida, Koichiro
US Patent Application 12/522713; 20100045174
URL: https://ppubs.uspto.gov/pubwebapp/external.html?q=(20100045174).pn.&db=US-PGPUB&type=ids

White organic LEDs and their recent advancements
journal, April 2006

Misra, Aparna; Kumar, Pankaj; Kamalasanan, M. N.
Semiconductor Science and Technology, Vol. 21, Issue 7
https://doi.org/10.1088/0268-1242/21/7/R01

White organic light-emitting devices with a phosphorescent multiple emissive layer
journal, July 2006

Cheng, Gang; Zhang, Yingfang; Zhao, Yi
Applied Physics Letters, Vol. 89, Issue 4
https://doi.org/10.1063/1.2227645

Highly efficient phosphorescent emission from organic electroluminescent devices
journal, September 1998

Baldo, M. A.; O'Brien, D. F.; You, Y.
Nature, Vol. 395, Issue 6698, p. 151-154
https://doi.org/10.1038/25954

Very high-efficiency green organic light-emitting devices based on electrophosphorescence
journal, July 1999

Baldo, M. A.; Lamansky, S.; Burrows, P. E.
Applied Physics Letters, Vol. 75, Issue 1, p. 4-6
https://doi.org/10.1063/1.124258

Nearly 100% internal phosphorescence efficiency in an organic light-emitting device
journal, November 2001

Adachi, Chihaya; Baldo, Marc A.; Thompson, Mark E.
Journal of Applied Physics, Vol. 90, Issue 10
https://doi.org/10.1063/1.1409582

High-efficiency tandem organic light-emitting diodes
journal, January 2004

Liao, L. S.; Klubek, K. P.; Tang, C. W.
Applied Physics Letters, Vol. 84, Issue 2
https://doi.org/10.1063/1.1638624

Efficient, deep-blue organic electrophosphorescence by guest charge trapping
journal, November 2003

Holmes, R. J.; D’Andrade, B. W.; Forrest, S. R.
Applied Physics Letters, Vol. 83, Issue 18, p. 3818-3820
https://doi.org/10.1063/1.1624639

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Title: Stacked white OLED having separate red, green and blue sub-elements

Abstract

Citation Formats

Electroluminescent device with modified thin film luminescent zone patent, September 1988

Electroluminescent devices patent, September 1993

Photodetector with absorbing region having resonant periodic absorption between reflectors patent, February 1995

Article comprising a microcavity light source patent, October 1997

White light-emitting organic electroluminescent devices patent, November 1997

Transparent contacts for organic devices patent, December 1997

Multicolor organic light emitting devices patent, January 1998

High efficiency organic light emitting devices with light directing structures patent, November 1998

Vacuum deposited, non-polymeric flexible organic light emitting devices patent, December 1998

Output control of vertical microcavity light emitting device patent, April 1999

Multicolor display devices patent, January 2000

Fabrication of organic semiconductor devices using ink jet printing patent, July 2000

Displays having mesa pixel configuration patent, July 2000

Structure for high efficiency electroluminescent device patent, August 2000

Method for patterning devices patent, September 2001

OLEDs doped with phosphorescent compounds patent, October 2001

Intersystem crossing agents for efficient utilization of excitons in organic light emitting devices patent, October 2001

Low pressure vapor phase deposition of organic thin films patent, January 2002

Method for patterning organic thin film devices using a die patent, October 2002

Transparent contacts for organic devices patent, April 2003

Method for displacement chromatography patent, June 2003

Fabrication of non-polymeric flexible organic light emitting devices patent, August 2003

Process and apparatus for organic vapor jet deposition patent, October 2008

Organic phosphorescent light emitting device patent, March 2009

Organic light-emitting display patent, April 2009

Display with multiple emission layers patent, May 2009

Optically pumped semiconductor laser device patent, June 2009

White OLEDs with a color-compensated electroluminescent unit patent, July 2009

Stacked organic electroluminescent units for white light emission provided with RGB color conversion portions patent, April 2010

Fluorescent filtered electrophosphorescence patent, August 2010

White organic light emitting device patent, December 2010

Apparatus and methods for providing a static interferometric display device patent, May 2011

Tandem OLED device with intermediate connector patent, June 2011

High-color-temperature tandem white OLED patent, July 2011

Organic light emitting device having multiple separate emissive layers patent, March 2012

Triazole derivative, and light-emitting element, light-emitting device, and electronic device with the use of triazole derivative patent, May 2012

III-nitride light-emitting devices with reflective engineered growth templates and methods of manufacture patent, August 2012

White phosphorescent organic light emitting devices patent, August 2013

Stable blue phosphorescent organic light emitting devices patent, October 2013

Organometallic complexes as phosphorescent emitters in organic LEDs patent-application, March 2002

Organic electroluminescent device patent-application, May 2002

Organometallic compounds and emission-shifting organic electrophosphorescence patent-application, December 2002

Organic light emitting devices having carrier blocking layers comprising metal complexes patent-application, April 2003

Phosphorescent compounds and devices comprising the same patent-application, April 2003

White light emitting oleds from combined monomer and aggregate emission patent-application, September 2003

Organic electroluminescent device patent-application, October 2003

Very Low Voltage, High Efficiency Phosphorescent OLED in a p-i-n Structure patent-application, December 2003

Transparent electrodes patent-application, September 2004

Cascaded organic electroluminescent devices with color filters patent-application, February 2005

Full color OLED and method for fabricating the same patent-application, May 2005

Organic electroluminescence device patent-application, June 2005

White light emitting organic electroluminescent device and organic electroluminescent display having the same patent-application, July 2005

Tandem OLED having stable intermediate connectors patent-application, December 2005

White OLEDs with a color-compensated electroluminescent unit patent-application, April 2006

Photonic devices formed on substrates and their fabrication methods patent-application, July 2006

Compound, charge transporting material and organic electroluminescent element patent-application, August 2006

Hybrid OLED having phosphorescent and fluorescent emitters patent-application, October 2006

Light-emitting device patent-application, December 2006

Phosphorescent OLED with interlayer patent-application, May 2007

Light-emitting element, light-emitting device, and electronic device patent-application, January 2008

Materials and architectures for efficient harvesting of singlet and triplet excitons for white light emitting OLEDs patent-application, May 2008

White Organic Light Emitting Device patent-application, July 2008

Organometallic Complex, and Light-Emitting Element, Light-Emitting Device, and Electronic Device Using the Organometallic Complex patent-application, December 2008

White Organic Light Emitting Device patent-application, February 2009

Stable Blue Phosphorescent Organic Light Emitting Devices patent-application, December 2009

Organic Compound, Charge-Transporting Material, Composition for Charge-Transporting Material and Organic Electroluminescent Device patent-application, November 2009

Composition for Use in Organic Device, Polymer Film, and Organic Electroluminescent Element patent-application, February 2010

White organic LEDs and their recent advancements journal, April 2006

White organic light-emitting devices with a phosphorescent multiple emissive layer journal, July 2006

Highly efficient phosphorescent emission from organic electroluminescent devices journal, September 1998

Very high-efficiency green organic light-emitting devices based on electrophosphorescence journal, July 1999

Nearly 100% internal phosphorescence efficiency in an organic light-emitting device journal, November 2001

High-efficiency tandem organic light-emitting diodes journal, January 2004

Efficient, deep-blue organic electrophosphorescence by guest charge trapping journal, November 2003

Electroluminescent device with modified thin film luminescent zone
patent, September 1988

Electroluminescent devices
patent, September 1993

Photodetector with absorbing region having resonant periodic absorption between reflectors
patent, February 1995

Article comprising a microcavity light source
patent, October 1997

White light-emitting organic electroluminescent devices
patent, November 1997

Transparent contacts for organic devices
patent, December 1997

Multicolor organic light emitting devices
patent, January 1998

High efficiency organic light emitting devices with light directing structures
patent, November 1998

Vacuum deposited, non-polymeric flexible organic light emitting devices
patent, December 1998

Output control of vertical microcavity light emitting device
patent, April 1999

Multicolor display devices
patent, January 2000

Fabrication of organic semiconductor devices using ink jet printing
patent, July 2000

Displays having mesa pixel configuration
patent, July 2000

Structure for high efficiency electroluminescent device
patent, August 2000

Method for patterning devices
patent, September 2001

OLEDs doped with phosphorescent compounds
patent, October 2001

Intersystem crossing agents for efficient utilization of excitons in organic light emitting devices
patent, October 2001

Low pressure vapor phase deposition of organic thin films
patent, January 2002

Method for patterning organic thin film devices using a die
patent, October 2002

Transparent contacts for organic devices
patent, April 2003

Method for displacement chromatography
patent, June 2003

Fabrication of non-polymeric flexible organic light emitting devices
patent, August 2003

Process and apparatus for organic vapor jet deposition
patent, October 2008

Organic phosphorescent light emitting device
patent, March 2009

Organic light-emitting display
patent, April 2009

Display with multiple emission layers
patent, May 2009

Optically pumped semiconductor laser device
patent, June 2009

White OLEDs with a color-compensated electroluminescent unit
patent, July 2009

Stacked organic electroluminescent units for white light emission provided with RGB color conversion portions
patent, April 2010

Fluorescent filtered electrophosphorescence
patent, August 2010

White organic light emitting device
patent, December 2010

Apparatus and methods for providing a static interferometric display device
patent, May 2011

Tandem OLED device with intermediate connector
patent, June 2011

High-color-temperature tandem white OLED
patent, July 2011

Organic light emitting device having multiple separate emissive layers
patent, March 2012

Triazole derivative, and light-emitting element, light-emitting device, and electronic device with the use of triazole derivative
patent, May 2012

III-nitride light-emitting devices with reflective engineered growth templates and methods of manufacture
patent, August 2012

White phosphorescent organic light emitting devices
patent, August 2013

Stable blue phosphorescent organic light emitting devices
patent, October 2013

Organometallic complexes as phosphorescent emitters in organic LEDs
patent-application, March 2002

Organic electroluminescent device
patent-application, May 2002

Organometallic compounds and emission-shifting organic electrophosphorescence
patent-application, December 2002

Organic light emitting devices having carrier blocking layers comprising metal complexes
patent-application, April 2003

Phosphorescent compounds and devices comprising the same
patent-application, April 2003

White light emitting oleds from combined monomer and aggregate emission
patent-application, September 2003

Organic electroluminescent device
patent-application, October 2003

Very Low Voltage, High Efficiency Phosphorescent OLED in a p-i-n Structure
patent-application, December 2003

Transparent electrodes
patent-application, September 2004

Cascaded organic electroluminescent devices with color filters
patent-application, February 2005

Full color OLED and method for fabricating the same
patent-application, May 2005

Organic electroluminescence device
patent-application, June 2005

White light emitting organic electroluminescent device and organic electroluminescent display having the same
patent-application, July 2005

Tandem OLED having stable intermediate connectors
patent-application, December 2005

White OLEDs with a color-compensated electroluminescent unit
patent-application, April 2006

Photonic devices formed on substrates and their fabrication methods
patent-application, July 2006

Compound, charge transporting material and organic electroluminescent element
patent-application, August 2006

Hybrid OLED having phosphorescent and fluorescent emitters
patent-application, October 2006

Light-emitting device
patent-application, December 2006

Phosphorescent OLED with interlayer
patent-application, May 2007

Light-emitting element, light-emitting device, and electronic device
patent-application, January 2008

Materials and architectures for efficient harvesting of singlet and triplet excitons for white light emitting OLEDs
patent-application, May 2008

White Organic Light Emitting Device
patent-application, July 2008

Organometallic Complex, and Light-Emitting Element, Light-Emitting Device, and Electronic Device Using the Organometallic Complex
patent-application, December 2008

White Organic Light Emitting Device
patent-application, February 2009

Stable Blue Phosphorescent Organic Light Emitting Devices
patent-application, December 2009

Organic Compound, Charge-Transporting Material, Composition for Charge-Transporting Material and Organic Electroluminescent Device
patent-application, November 2009

Composition for Use in Organic Device, Polymer Film, and Organic Electroluminescent Element
patent-application, February 2010

White organic LEDs and their recent advancements
journal, April 2006

White organic light-emitting devices with a phosphorescent multiple emissive layer
journal, July 2006

Highly efficient phosphorescent emission from organic electroluminescent devices
journal, September 1998

Very high-efficiency green organic light-emitting devices based on electrophosphorescence
journal, July 1999

Nearly 100% internal phosphorescence efficiency in an organic light-emitting device
journal, November 2001

High-efficiency tandem organic light-emitting diodes
journal, January 2004

Efficient, deep-blue organic electrophosphorescence by guest charge trapping
journal, November 2003