USPatentGranted
B2

Light emitting device and electronic apparatus

Granted 17 Dec 2013 · 8 office actions

Current assignee: Semiconductor Energy Laboratory Co., Ltd. · originally Semiconductor Energy Laboratory

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Inventors: Shunpei Yamazaki, Toru Takayama · Examiner: Minchul Yang · AU 2891 · TC 2800

Life of the patent

3 dated events
⤢ drag to zoomJan 2010Jul 2010Jan 2011Jul 2011Jan 2012Jul 2012Jan 2013Jul 2013Jan 2014Prosecution
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Abstract

A light emitting device which is capable of suppressing deterioration by diffusion of impurities such as moisture, oxygen, alkaline metal and alkaline earth metal, and concretely, a flexible light emitting device which has light emitting element formed on a plastic substrate. On the plastic substrate, disposed are two layers and more of barrier films comprising a layer represented by AlNxOy which is capable of blocking intrusion of moisture and oxygen in a light emitting layer and blocking intrusion of impurities such as an alkaline metal and an alkaline earth metal in an active layer of TFT, and further, a stress relaxation film containing resin is disposed between two layers of barrier films.

Claims

33 · 3 independent · depth 2
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33 granted claims

Classifications

6 codes
IPC · International Patent Classification
Section H — Electricity
  • H01L51/30
USPC · US Patent Classification
257/40257/E51.013257/E51.09257/E51.018257/79

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Pendency
3.8 y
1,376 days filing → grant
Office actions
4
non-final + final
Responses
3
5 RCE
Interviews
1
examiner interview summaries
Examiner
Minchul Yang
art unit 2891 · TC 2800
Citations: 217 back · 0 forward

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Priority chain

1 priority documents
›Priority documents — 1
TypeDocumentDate
related publicationUS 20100163859 A11 Jul 2010

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