ORGANIC LIGHT EMITTING DEVICES HAVING GRADED EMISSION REGIONS

Title:

ORGANIC LIGHT EMITTING DEVICES HAVING GRADED EMISSION REGIONS

Document Type and Number:

WIPO Patent Application WO/2011/153262

Kind Code:

A3

Abstract:

Organic light-emitting devices having an emissive region comprising a hole transport material and an electron transport material in varying material concentration across the devices. Variation of the concentration of the hole transport material and electron transport material is provided continuously or in a graded manner, as opposed to using multiple layers arranged to form a step-like gradient.

Inventors:

HOLMES RUSSELL J (US)
ERICKSON NICK (US)

Application Number:

PCT/US2011/038792

Publication Date:

March 29, 2012

Filing Date:

June 01, 2011

Export Citation:

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Assignee:

UNIV MINNESOTA (US)
HOLMES RUSSELL J (US)
ERICKSON NICK (US)

International Classes:

H01L51/50

Foreign References:

JP2009076511A	2009-04-09
JP2009076510A	2009-04-09
JP2009032977A	2009-02-12

Attorney, Agent or Firm:

HUBBARD, Kevin, J. et al. (PLLCSuite 200, Maple Island Building,221 Main Street Nort, Stillwater MN, US)

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