CA2215400A1 - Bipolar electroluminescent device - Google Patents

Bipolar electroluminescent device

Info

Publication number
CA2215400A1
CA2215400A1 CA002215400A CA2215400A CA2215400A1 CA 2215400 A1 CA2215400 A1 CA 2215400A1 CA 002215400 A CA002215400 A CA 002215400A CA 2215400 A CA2215400 A CA 2215400A CA 2215400 A1 CA2215400 A1 CA 2215400A1
Authority
CA
Canada
Prior art keywords
light
emitting
devices
light emitter
volts
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
CA002215400A
Other languages
French (fr)
Other versions
CA2215400C (en
Inventor
Arthur J. Epstein
Yunzhang Wang
Darren Douglas Gebler
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.)
Ohio State University
Original Assignee
The Ohio State University
Arthur J. Epstein
Yunzhang Wang
Darren Douglas Gebler
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 The Ohio State University, Arthur J. Epstein, Yunzhang Wang, Darren Douglas Gebler filed Critical The Ohio State University
Publication of CA2215400A1 publication Critical patent/CA2215400A1/en
Application granted granted Critical
Publication of CA2215400C publication Critical patent/CA2215400C/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
    • H05B33/12—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
    • 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
    • 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
    • H05B33/20—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
    • 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
    • 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
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/841—Applying alternating current [AC] during manufacturing or treatment

Abstract

Light-emitting bipolar devices (10) consist of a light emitter (15) formed from an electroluminescent organic light-emitting material in contact with an insulating material. The light emitter (15) is in contact with two electrodes (12, 18) that are maintained in spaced-apart relation with each other. The light emitter (15) can be formed as an integral mixture of light-emitting materials and insulating materials or as separate layers of light-emitting and insulating materials. The devices operate with AC voltage (24) of less than twenty-four volts and in some instances at less than five volts. Under AC
driving, the devices produce modulated light output that can be frequency or amplitude modulated. Under DC driving, the devices operate in both forward and reverse bias.
CA002215400A 1995-03-17 1996-03-12 Bipolar electroluminescent device Expired - Fee Related CA2215400C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US406,512 1995-03-17
US08/406,512 US5663573A (en) 1995-03-17 1995-03-17 Bipolar electroluminescent device
PCT/US1996/003357 WO1996029747A1 (en) 1995-03-17 1996-03-12 Bipolar electroluminescent device

Publications (2)

Publication Number Publication Date
CA2215400A1 true CA2215400A1 (en) 1996-09-26
CA2215400C CA2215400C (en) 2002-09-17

Family

ID=23608302

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002215400A Expired - Fee Related CA2215400C (en) 1995-03-17 1996-03-12 Bipolar electroluminescent device

Country Status (7)

Country Link
US (1) US5663573A (en)
EP (1) EP0815598B1 (en)
JP (1) JP3050605B2 (en)
AT (1) ATE317594T1 (en)
CA (1) CA2215400C (en)
DE (1) DE69635803T2 (en)
WO (1) WO1996029747A1 (en)

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Also Published As

Publication number Publication date
EP0815598B1 (en) 2006-02-08
CA2215400C (en) 2002-09-17
DE69635803T2 (en) 2006-10-05
JP3050605B2 (en) 2000-06-12
EP0815598A1 (en) 1998-01-07
AU690446B2 (en) 1998-04-23
AU5309296A (en) 1996-10-08
WO1996029747A1 (en) 1996-09-26
JPH11500574A (en) 1999-01-12
ATE317594T1 (en) 2006-02-15
DE69635803D1 (en) 2006-04-20
US5663573A (en) 1997-09-02
EP0815598A4 (en) 2001-08-29

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