GB2371679A - Light-emitting devices - Google Patents

Light-emitting devices Download PDF

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Publication number
GB2371679A
GB2371679A GB0208403A GB0208403A GB2371679A GB 2371679 A GB2371679 A GB 2371679A GB 0208403 A GB0208403 A GB 0208403A GB 0208403 A GB0208403 A GB 0208403A GB 2371679 A GB2371679 A GB 2371679A
Authority
GB
United Kingdom
Prior art keywords
light
emitting
region
emitting devices
phosphorescent material
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
GB0208403A
Other versions
GB0208403D0 (en
GB2371679B (en
Inventor
Stephen Karl Heeks
Paul Raymond Berger
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.)
Cambridge Display Technology Ltd
Original Assignee
Cambridge Display Technology Ltd
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 Cambridge Display Technology Ltd filed Critical Cambridge Display Technology Ltd
Publication of GB0208403D0 publication Critical patent/GB0208403D0/en
Publication of GB2371679A publication Critical patent/GB2371679A/en
Application granted granted Critical
Publication of GB2371679B publication Critical patent/GB2371679B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
    • 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
    • H10K50/125—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
    • H10K85/10—Organic polymers or oligomers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
    • H10K85/10—Organic polymers or oligomers
    • H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
    • H10K85/10—Organic polymers or oligomers
    • H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
    • H10K85/113—Heteroaromatic compounds comprising sulfur or selene, e.g. polythiophene
    • H10K85/1135—Polyethylene dioxythiophene [PEDOT]; Derivatives thereof
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
    • H10K85/10—Organic polymers or oligomers
    • H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
    • H10K85/114—Poly-phenylenevinylene; Derivatives thereof
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
    • H10K85/10—Organic polymers or oligomers
    • H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
    • H10K85/115—Polyfluorene; Derivatives thereof
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
    • H10K85/30—Coordination compounds

Abstract

A light-emitting device comprising : a plurality of regions of phosphorescent material; and a plurality of individually actuable regions of organic light-emitting material capable of emitting radiation of a wavelength that can excite the phosphorescent material to phosphoresce, each region of organic light-emitting material being arranged for emitting radiation to a respective region of phosphorescent material to cause phosphorescence of the material in that region.

Description

',UK Patent Application 'g,GB,,2 371 679 PA 43, Date of Printing by UK
Office 31.07.2002 (21) Application No 0208403.6 (51) INTCL7 HOlL 51/ZO // HOlL 27/00 33/00 (22) Date ofFiling 12.10.2000 (52) UK CL (Edition T) (30) Priority Data H1K KEAL K1EA K2R4 KSB1 K5B2 K5B4 (31) 9924515 (32) 15.10. 1999 (33) GB U1S S2206 S2283 S2284
(86) International Application Data (56) Documents Cited by ISA PCT/GBOO/03911 En 12.10.2000 GB 2333897 A EP 0550063 A (87) International Publication Data US 5705285 A W001/29909 En 26.04.2001 SID Symposium, Anaheim, May 1998 pages 663-666, Hattori R et al. "Full-color LEDs based on conjugated polymer materials" XP000955359 (71} Appl cant(s) Journal of Applied Physics, vol. 82, no. 9, November Cambridge Display Technology Limited 1997, Niko A et al. "RGB emission of para-hexaphenyl (Incorporated in the United Kingdom) devices with color-converters", pages 4177-4182 Greenwich House, Madingley Rise, Madingley Road, XP002158342 CAMBRIDGE, CB3 OTX, United Kingdom (58) Field of Search by ISA
(72) Inventor(s) INT CL7 HOlL Stephen Karl Heeks ONLINE INSPEC EPOlnternal Paul Raymond Berger.
(74) continued overleaf (54) Abstract Titie Light-em tting devices (57) A light-emitting device comprising: a plurality of regions of phosphorescent material; and a plurality of individually actuable regions of organic light-emitting material capable of emitting radiation of a wavelength that can excite the phosphorescent material to phosphoresce, each region of organic light-emitting material being arranged for emitting radiation to a respective region of phosphorescent material to cause phosphorescence of the material in that region.
6, 7 1l 6 7 1 0 10 ( 6 710 6 _, _...
-- - /l/ / f , C) W CD (9 This international application has entered the national phase early. D
(74) Agent and/or Address for Service Cambridge Display Technology Limited Greenwich House, Madingley Rise, Madingley Road, CAMBRIDGE, CB3 OTX, United Kingdom
GB0208403A 1999-10-15 2000-10-12 Light-emitting devices Expired - Fee Related GB2371679B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9924515.1A GB9924515D0 (en) 1999-10-15 1999-10-15 Light-emitting devices
PCT/GB2000/003911 WO2001029909A1 (en) 1999-10-15 2000-10-12 Light-emitting devices

Publications (3)

Publication Number Publication Date
GB0208403D0 GB0208403D0 (en) 2002-05-22
GB2371679A true GB2371679A (en) 2002-07-31
GB2371679B GB2371679B (en) 2004-05-19

Family

ID=10862852

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9924515.1A Ceased GB9924515D0 (en) 1999-10-15 1999-10-15 Light-emitting devices
GB0208403A Expired - Fee Related GB2371679B (en) 1999-10-15 2000-10-12 Light-emitting devices

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9924515.1A Ceased GB9924515D0 (en) 1999-10-15 1999-10-15 Light-emitting devices

Country Status (3)

Country Link
AU (1) AU7803400A (en)
GB (2) GB9924515D0 (en)
WO (1) WO2001029909A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10593854B1 (en) 2006-12-11 2020-03-17 The Regents Of The University Of California Transparent light emitting device with light emitting diodes
US11796163B2 (en) 2020-05-12 2023-10-24 Feit Electric Company, Inc. Light emitting device having improved illumination and manufacturing flexibility
US11876042B2 (en) 2020-08-03 2024-01-16 Feit Electric Company, Inc. Omnidirectional flexible light emitting device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2015135B1 (en) * 2002-03-07 2012-02-01 Acreo AB Electrochemical device
DE10333232A1 (en) 2003-07-21 2007-10-11 Merck Patent Gmbh Organic electroluminescent element
DE602005022067D1 (en) * 2004-06-04 2010-08-12 Philips Intellectual Property ELECTROLUMINESCENCE STRUCTURE AND LED WITH AN EL STRUCTURE
EP2153114B1 (en) 2007-05-24 2014-06-25 Koninklijke Philips N.V. Color-tunable illumination system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0550063A2 (en) * 1991-12-30 1993-07-07 Eastman Kodak Company Organic electroluminescent multicolor image display device
WO1997048138A2 (en) * 1996-06-11 1997-12-18 Philips Electronics N.V. Visible light emitting devices including uv-light emitting diode and uv-excitable, visible light emitting phosphor, and method of producing such devices
US5705285A (en) * 1996-09-03 1998-01-06 Motorola, Inc. Multicolored organic electroluminescent display
US5874803A (en) * 1997-09-09 1999-02-23 The Trustees Of Princeton University Light emitting device with stack of OLEDS and phosphor downconverter
GB2333897A (en) * 1998-02-02 1999-08-04 Fuji Electric Co Ltd Polychromatic organic electroluminescent device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0550063A2 (en) * 1991-12-30 1993-07-07 Eastman Kodak Company Organic electroluminescent multicolor image display device
WO1997048138A2 (en) * 1996-06-11 1997-12-18 Philips Electronics N.V. Visible light emitting devices including uv-light emitting diode and uv-excitable, visible light emitting phosphor, and method of producing such devices
US5705285A (en) * 1996-09-03 1998-01-06 Motorola, Inc. Multicolored organic electroluminescent display
US5874803A (en) * 1997-09-09 1999-02-23 The Trustees Of Princeton University Light emitting device with stack of OLEDS and phosphor downconverter
GB2333897A (en) * 1998-02-02 1999-08-04 Fuji Electric Co Ltd Polychromatic organic electroluminescent device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Journal of Applied Physics, vol. 82, no. 9, November 1997, Niko A et al. "RGB emission of para-hexaphenyl devices with color-converters", pages 4177-4182, XP002158342 *
SID Symposium, Anaheim, May 1998 pages 663-666, Hattori R et al. "Full-color LEDs based on conjugated polymer materials" XP000955359 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10593854B1 (en) 2006-12-11 2020-03-17 The Regents Of The University Of California Transparent light emitting device with light emitting diodes
US10644213B1 (en) 2006-12-11 2020-05-05 The Regents Of The University Of California Filament LED light bulb
US10658557B1 (en) 2006-12-11 2020-05-19 The Regents Of The University Of California Transparent light emitting device with light emitting diodes
US11796163B2 (en) 2020-05-12 2023-10-24 Feit Electric Company, Inc. Light emitting device having improved illumination and manufacturing flexibility
US11876042B2 (en) 2020-08-03 2024-01-16 Feit Electric Company, Inc. Omnidirectional flexible light emitting device

Also Published As

Publication number Publication date
WO2001029909A1 (en) 2001-04-26
GB0208403D0 (en) 2002-05-22
GB9924515D0 (en) 1999-12-15
GB2371679B (en) 2004-05-19
AU7803400A (en) 2001-04-30

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20191012