CA2046221A1 - Electroluminescent device with a magnesium/aluminum cathode - Google Patents

Electroluminescent device with a magnesium/aluminum cathode

Info

Publication number
CA2046221A1
CA2046221A1 CA2046221A CA2046221A CA2046221A1 CA 2046221 A1 CA2046221 A1 CA 2046221A1 CA 2046221 A CA2046221 A CA 2046221A CA 2046221 A CA2046221 A CA 2046221A CA 2046221 A1 CA2046221 A1 CA 2046221A1
Authority
CA
Canada
Prior art keywords
magnesium
electroluminescent device
transporting zone
aluminum
aluminum cathode
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
CA2046221A
Other languages
French (fr)
Other versions
CA2046221C (en
Inventor
Steven Arland Vanslyke
Ching Wan Tang
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of CA2046221A1 publication Critical patent/CA2046221A1/en
Application granted granted Critical
Publication of CA2046221C publication Critical patent/CA2046221C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H05B33/26—Light sources with substantially two-dimensional radiating surfaces characterised by the composition or arrangement of the conductive material used as an electrode
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
    • 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
    • H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/805—Electrodes
    • H10K50/82—Cathodes
    • H10K50/826—Multilayers, e.g. opaque multilayers
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal

Abstract

An internal junction electroluminescent device is disclosed containing, in sequence, an anode, an organic hole injecting and transporting zone, an organic electron injecting and transporting zone forming a junction with the organic hole injecting and transporting zone, and a cathode comprised of a layer contacting the organic electron injecting and transporting zone containing a combination of magnesium and aluminum. Aluminum accounts for at least 80 percent of the cathode layer.
CA 2046221 1990-07-26 1991-07-04 Electroluminescent device with a magnesium/aluminum cathode Expired - Lifetime CA2046221C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US558,285 1990-07-26
US07/558,285 US5059862A (en) 1990-07-26 1990-07-26 Electroluminescent device with improved cathode

Publications (2)

Publication Number Publication Date
CA2046221A1 true CA2046221A1 (en) 1992-01-27
CA2046221C CA2046221C (en) 1996-06-25

Family

ID=24228944

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2046221 Expired - Lifetime CA2046221C (en) 1990-07-26 1991-07-04 Electroluminescent device with a magnesium/aluminum cathode

Country Status (8)

Country Link
US (1) US5059862A (en)
EP (1) EP0468437B1 (en)
JP (1) JP2846980B2 (en)
AT (1) ATE112435T1 (en)
CA (1) CA2046221C (en)
DE (1) DE69104295T2 (en)
DK (1) DK0468437T3 (en)
ES (1) ES2061130T3 (en)

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US5059862A (en) 1991-10-22
DE69104295D1 (en) 1994-11-03
ATE112435T1 (en) 1994-10-15
EP0468437A2 (en) 1992-01-29
CA2046221C (en) 1996-06-25
JP2846980B2 (en) 1999-01-13
EP0468437B1 (en) 1994-09-28
JPH04233195A (en) 1992-08-21
EP0468437A3 (en) 1992-06-10

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