USPatentGranted
B2

Organic light-emitting device

Granted 26 Mar 2013 · no office action yet

Current assignee: Samsung Display · originally Samsung Electronics

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Inventors: Hye-Jin Jung, Yoon-Hyun Kwak, Jong-Hyuk Lee, Seok-Hwan Hwang +5 · Examiner: Tu-Tu Ho · AU 2818 · TC 2800

Life of the patent

5 dated events
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Abstract

A heterocyclic compound represented by a general Formula 1 and an organic light-emitting device including the heterocyclic compound. In some embodiments the heterocyclic compound of Formula 1 may be used as a light-emitting material, a hole transporting material, or an electron transporting material. The heterocyclic compound of Formula 1 having a heterocyclic group in the molecules thereof has a high glass transition temperature (Tg) or a high melting point due to the inclusion of the heterocyclic group. Thus, the heterocyclic compound has high heat resistance against Joule\'s heat generated in an organic layer, between organic layers, or between an organic layer and a metal electrode when light emission occurs, and has high durability in high-temperature environments. An organic light-emitting device manufactured using the heterocyclic compound of Formula 1 has high durability when stored or operated. In addition, due to the inclusion of a substituent such as an aryl group or heteroaryl group, molecular layers formed as thin films may be maintained in good condition, thereby improving the characteristics of the organic light-emitting device.

Claims

28 · 1 independent · depth 5
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28 granted claims

Classifications

10 codes
IPC · International Patent Classification
Section H — Electricity
  • H01L51/00
USPC · US Patent Classification
257/40428/690548/418257/E51.028257/E51.026548/416548/518257/103257/E51.018

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File wrapper

⤢ drag to zoomApr 2011Jul 2011Oct 2011Jan 2012Apr 2012Jul 2012Oct 2012Jan 2013Apr 2013USPTOApplicantNotice of allowance
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Pendency
2.0 y
725 days filing → grant
Office actions
0
none on record
Responses
1
no RCE
Examiner
Tu-Tu Ho
art unit 2818 · TC 2800
Citations: 36 back · 0 forward

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Term & fees

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Priority chain

1 priority documents
›Priority documents — 1
TypeDocumentDate
related publicationUS 20120097924 A126 Apr 2012

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