Organic light emitting devices for illumination

Hack, Michael; Lu, Min-Hao Michael; Weaver, Michael S

Organic light emitting devices for illumination

Patent · 23 January 2012

OSTI ID:1034646

Hack, Michael ^[1]; Lu, Min-Hao Michael ^[2]; Weaver, Michael S ^[3]

Lambertville, NJ
Lawrenceville, NJ
Princeton, NJ

An organic light emitting device an a method of obtaining illumination from such a device is provided. The device has a plurality of regions, each region having an organic emissive layer adapted to emit a different spectrum of light. The regions in combination emit light suitable for illumination purposes. The area of each region may be selected such that the device is more efficient than an otherwise equivalent device having regions of equal size. The regions may have an aspect ratio of at least about four. All parts of any given region may be driven at the same current.

Research Organization:: Universal Display Corporation (Ewing, NJ)

Sponsoring Organization:: USDOE

DOE Contract Number:: FG02-02ER83565

Assignee:: Universal Display Corporation (Ewing, NJ)

Patent Number(s):: 8,100,734

Application Number:: 11/580,590

OSTI ID:: 1034646

Country of Publication:: United States

Language:: English

References (8)

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White light‐emitting organic electroluminescent devices using the poly( N ‐vinylcarbazole) emitter layer doped with three fluorescent dyes Kido, J.; Hongawa, K.; Okuyama, K. Applied Physics Letters, Vol. 64, Issue 7 https://doi.org/10.1063/1.111023	journal	February 1994
Color‐tunable organic light‐emitting devices Burrows, P. E.; Forrest, S. R.; Sibley, S. P. Applied Physics Letters, Vol. 69, Issue 20 https://doi.org/10.1063/1.117743	journal	November 1996
Controlling Exciton Diffusion in Multilayer White Phosphorescent Organic Light Emitting Devices D’Andrade, B. W.; Thompson, M. E.; Forrest, S. R. Advanced Materials, Vol. 14, Issue 2 https://doi.org/10.1002/1521-4095(20020116)14:2<147::AID-ADMA147>3.0.CO;2-3	journal	January 2002
Multilayer White Light-Emitting Organic Electroluminescent Device Kido, J.; Kimura, M.; Nagai, K. Science, Vol. 267, Issue 5202 https://doi.org/10.1126/science.267.5202.1332	journal	March 1995
Efficient white light-emitting diodes realized with new processable blends of conjugated polymers Tasch, S.; List, E. J. W.; Ekström, O. Applied Physics Letters, Vol. 71, Issue 20 https://doi.org/10.1063/1.120205	journal	November 1997
Nearly 100% internal phosphorescence efficiency in an organic light-emitting device Adachi, Chihaya; Baldo, Marc A.; Thompson, Mark E. Journal of Applied Physics, Vol. 90, Issue 10 https://doi.org/10.1063/1.1409582	journal	November 2001
Organic light-emitting devices for illumination quality white light Duggal, Anil R.; Shiang, J. J.; Heller, Christian M. Applied Physics Letters, Vol. 80, Issue 19 https://doi.org/10.1063/1.1478786	journal	May 2002

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