USPatentGranted
B2

Organic light-emitting device including transparent conducting oxide layer as cathode and method of manufacturing the same

Granted 6 Jul 2010 · 4 office actions

Current assignee: Samsung Display · originally Samsung Electronics

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Inventors: Won-Jong Kim, Chang-Ho Lee, Jong-Hyuk Lee, Jin-Baek Choi +7 · Examiner: Wai-Sing Louie · AU 2814 · TC 2800

Life of the patent

12 dated events
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Abstract

An organic light-emitting device including a transparent conducting oxide layer as a cathode and a method of manufacturing the organic light-emitting device. The organic light-emitting device includes an anode disposed on a substrate. An organic functional layer including at least an organic light-emitting layer is disposed on the anode. The transparent conducting oxide layer used as the cathode is disposed on the organic functional layer. The transparent conducting oxide layer cathode is formed by plasma-assisted thermal evaporation. A microcavity structure is not formed in the organic light-emitting device, thereby avoiding a luminance change and a color shift as a function of viewing angle.

Claims

8 · 1 independent · depth 4
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8 granted claims

Classifications

4 codes
IPC · International Patent Classification
Section H — Electricity
  • H01L51/40
USPC · US Patent Classification
438/99257/E51.001257/40

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File wrapper

⤢ drag to zoomApr 2008Jul 2008Oct 2008Jan 2009Apr 2009Jul 2009Oct 2009Jan 2010Apr 2010Jul 2010USPTOApplicantRestriction requirementNon-final rejectionResponse after non-finalFinal rejectionResponse after finalRequest for continued examination
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Pendency
2.3 y
834 days filing → grant
Office actions
2
after a restriction
Responses
2
1 RCE
Interviews
1
examiner interview summaries
Examiner
Wai-Sing Louie
art unit 2814 · TC 2800
Citations: 5 back · 0 forward

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Term & fees

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Priority chain

1 priority documents
›Priority documents — 1
TypeDocumentDate
related publicationUS 20080246050 A19 Oct 2008

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Citations

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