Global to push GA events into
skip to main content

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

The present invention relates to efficient organic light emitting devices (OLEDs). The devices employ three emissive sub-elements, typically emitting red, green and blue, to sufficiently cover the visible spectrum. Thus, the devices may be white-emitting OLEDs, or WOLEDs. Each sub-element comprises at least one organic layer which is an emissive layer--i.e., the layer is capable of emitting light when a voltage is applied across the stacked device. The sub-elements are vertically stacked and are separated by charge generating layers. The charge-generating layers are layers that inject charge carriers into the adjacent layer(s) but do not have a direct external connection.
; ;
Issue Date:
OSTI Identifier:
The Regents of the University of Michigan (Ann Arbor, MI) CHO
Patent Number(s):
Application Number:
Contract Number:
Research Org:
The University of Michigan, Ann Arbor, MI (USA)
Sponsoring Org:
Country of Publication:
United States

Other works cited in this record:

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

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

Fluorescent filtered electrophosphorescence
patent, August 2010

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

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

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

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
  • DOI: 10.1063/1.124258

Similar records in DOepatents and OSTI.GOV collections: