CA2352589A1 - Electroluminescent device - Google Patents

Electroluminescent device Download PDF

Info

Publication number
CA2352589A1
CA2352589A1 CA002352589A CA2352589A CA2352589A1 CA 2352589 A1 CA2352589 A1 CA 2352589A1 CA 002352589 A CA002352589 A CA 002352589A CA 2352589 A CA2352589 A CA 2352589A CA 2352589 A1 CA2352589 A1 CA 2352589A1
Authority
CA
Canada
Prior art keywords
layer
lead
dielectric
permittivity
whose composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002352589A
Other languages
French (fr)
Other versions
CA2352589C (en
Inventor
Yukihiko Shirakawa
Masashi Miwa
Katsuto Nagano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
iFire IP Corp
Original Assignee
TDK Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TDK Corp filed Critical TDK Corp
Publication of CA2352589A1 publication Critical patent/CA2352589A1/en
Application granted granted Critical
Publication of CA2352589C publication Critical patent/CA2352589C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/10—Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H05B33/22—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/917—Electroluminescent

Abstract

The invention aims to solve the problem of prior art EL devices that undesirable defects form in dielectric layers, and especially the problems of EL devices having dielectric layers of lead-base dielectric material including a lowering, variation and change with time of the luminance of light emission, and thereby provide an EL
device ensuring high display quality and a method for manufacturing the same at a low cost. Such objects are achieved by an EL device comprising at least an electrically insulating substrate (11) and a structure including an electrode layer (12), a dielectric layer (13, 14, 15), a light emitting layer (17) and a transparent electrode layer (19) stacked on the substrate (11), wherein the dielectric layer is a laminate including a first thick-film ceramic high-permittivity dielectric layer (13) whose composition contains at least lead, a second high-permittivity layer (14) whose composition contains at least lead, and a third high-permittivity layer (15) whose composition is free of at least lead.
CA002352589A 2000-12-12 2001-07-06 Electroluminescent device Expired - Fee Related CA2352589C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000378071 2000-12-12
JP2000-378071 2000-12-12

Publications (2)

Publication Number Publication Date
CA2352589A1 true CA2352589A1 (en) 2002-06-12
CA2352589C CA2352589C (en) 2004-07-27

Family

ID=18846705

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002352589A Expired - Fee Related CA2352589C (en) 2000-12-12 2001-07-06 Electroluminescent device

Country Status (8)

Country Link
US (1) US6677059B2 (en)
EP (1) EP1215946B1 (en)
KR (1) KR20020046137A (en)
CN (1) CN1192686C (en)
AT (1) ATE418851T1 (en)
CA (1) CA2352589C (en)
DE (1) DE60137110D1 (en)
TW (1) TW502554B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6589674B2 (en) * 2001-01-17 2003-07-08 Ifire Technology Inc. Insertion layer for thick film electroluminescent displays
KR100416760B1 (en) * 2001-03-12 2004-01-31 삼성전자주식회사 Method for preparing a thick coating of PZT using sol-gel process
JP3804858B2 (en) * 2001-08-31 2006-08-02 ソニー株式会社 Organic electroluminescent device and manufacturing method thereof
KR100497213B1 (en) * 2001-10-29 2005-06-28 더 웨스타임 코퍼레이션 Composite Substrate, EL Panel Comprising the Same, and Method for Producing the Same
JP3957528B2 (en) * 2002-03-05 2007-08-15 日本碍子株式会社 Piezoelectric / electrostrictive membrane element
EP1552726A2 (en) 2002-10-18 2005-07-13 iFire Technology Corp. Color electroluminescent displays
TWI367686B (en) * 2004-04-07 2012-07-01 Semiconductor Energy Lab Light emitting device, electronic device, and television device
JPWO2005122651A1 (en) * 2004-06-07 2008-04-10 松下電器産業株式会社 Light emitting element and display device
FR2871942B1 (en) * 2004-06-17 2006-08-04 Commissariat Energie Atomique PROCESS FOR THE PREPARATION OF PIEZOELECTRIC MATERIALS
US20080131673A1 (en) * 2005-12-13 2008-06-05 Yasuyuki Yamamoto Method for Producing Metallized Ceramic Substrate
KR100804770B1 (en) * 2006-10-18 2008-02-19 주식회사 탑 엔지니어링 Modulator for electric optical apparatus
US8207547B2 (en) * 2009-06-10 2012-06-26 Brudgelux, Inc. Thin-film LED with P and N contacts electrically isolated from the substrate
CN109592980B (en) * 2018-12-17 2021-11-19 贵州振华红云电子有限公司 Low-temperature co-fired piezoelectric multilayer ceramic and preparation method thereof
CN112725675B (en) * 2020-12-23 2021-11-09 苏州希镝瑞新材料科技有限公司 Method for manufacturing dysprosium/terbium target

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61250993A (en) 1985-04-30 1986-11-08 日本電気株式会社 El element
JPS6244989A (en) 1985-08-22 1987-02-26 日本電気株式会社 Thin film el element
JPS6463297A (en) * 1987-09-01 1989-03-09 Nec Corp El element
JPH0470818A (en) * 1990-07-12 1992-03-05 Fujitsu Ltd Highly dielectric film, formation thereof and liquid crystal display panel using the same
US5432015A (en) * 1992-05-08 1995-07-11 Westaim Technologies, Inc. Electroluminescent laminate with thick film dielectric
JP3578786B2 (en) 1992-12-24 2004-10-20 アイファイアー テクノロジー インク EL laminated dielectric layer structure, method for producing the dielectric layer structure, laser pattern drawing method, and display panel
KR100283283B1 (en) * 1999-01-27 2001-02-15 박호군 Electroluminescent device having flat surface and its fabricating method
JP2000353591A (en) * 1999-04-07 2000-12-19 Tdk Corp Complex board, thin film light-emitting device using the same and manufacture thereof
KR100339562B1 (en) * 1999-10-07 2002-06-03 구자홍 Method for fabricating display device of semiconductor
KR100352195B1 (en) * 2000-03-09 2002-09-12 학교법인 인하학원 Plasma display panel having a ferroelectric thin film and ferroelectric thin film evaqporation method
US6577059B2 (en) * 2000-11-17 2003-06-10 Tdk Corporation Thin-film EL device, and its fabrication process
KR20020071608A (en) * 2001-03-07 2002-09-13 엘지전자 주식회사 Solid state display and manufacturing method thereof

Also Published As

Publication number Publication date
ATE418851T1 (en) 2009-01-15
CA2352589C (en) 2004-07-27
TW502554B (en) 2002-09-11
CN1192686C (en) 2005-03-09
CN1359254A (en) 2002-07-17
US20020127429A1 (en) 2002-09-12
DE60137110D1 (en) 2009-02-05
KR20020046137A (en) 2002-06-20
EP1215946B1 (en) 2008-12-24
EP1215946A2 (en) 2002-06-19
US6677059B2 (en) 2004-01-13
EP1215946A3 (en) 2007-07-04

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