GB2421855A - Method for improving the uniformity of emission of an electroluminescent device by irradyating it with light - Google Patents

Method for improving the uniformity of emission of an electroluminescent device by irradyating it with light Download PDF

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Publication number
GB2421855A
GB2421855A GB0606262A GB0606262A GB2421855A GB 2421855 A GB2421855 A GB 2421855A GB 0606262 A GB0606262 A GB 0606262A GB 0606262 A GB0606262 A GB 0606262A GB 2421855 A GB2421855 A GB 2421855A
Authority
GB
United Kingdom
Prior art keywords
organic electroluminescent
electroluminescent material
light
uniformity
emission
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
GB0606262A
Other versions
GB2421855B (en
GB0606262D0 (en
Inventor
Nalinkumar Patel
Matthew Roberts
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 GB0606262D0 publication Critical patent/GB0606262D0/en
Publication of GB2421855A publication Critical patent/GB2421855A/en
Application granted granted Critical
Publication of GB2421855B publication Critical patent/GB2421855B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • H01L51/5012—
    • H01L51/56—
    • 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
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • 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
    • H10K71/861—Repairing

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

A method of improving the uniformity of emission of an organic light emitting device (OLED), wherein the OLED comprises an organic electroluminescent material located between a first electrode for injection of positive charge carriers and a second electrode for injection of negative charge carriers; the method comprising the step of exposing the organic electroluminescent material to a treatment light having a wavelength shorter than the light emitted from said organic electroluminescent material when the OLED is driven, wherein the intensity of the treatment light incident on the organic electroluminescent material is greater than the intensity of ambient light incident on the organic electroluminescent material.

Description

GB 2421855 A continuation (72) Inventor(s): Nalinkumar Patel Matthew
Roberts (74) Agent and/or Address for Service: Cam bridge Display Technology Limited Building 2020, Cam bourne Business Park, CAM BOU RN E, Cam bridgeshire, CB3 6DW, United Kingdom
GB0606262A 2003-10-09 2004-10-08 Method for improving the uniformity of emission of an electroluminescent device by irradyating it with ligh Expired - Fee Related GB2421855B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0323720.3A GB0323720D0 (en) 2003-10-09 2003-10-09 Method for an electroluminescent device
PCT/GB2004/004331 WO2005036665A1 (en) 2003-10-09 2004-10-08 Method for improving the uniformity of emission of an electroluminescent device by irradyating it with ligh

Publications (3)

Publication Number Publication Date
GB0606262D0 GB0606262D0 (en) 2006-05-10
GB2421855A true GB2421855A (en) 2006-07-05
GB2421855B GB2421855B (en) 2007-05-23

Family

ID=29433628

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0323720.3A Ceased GB0323720D0 (en) 2003-10-09 2003-10-09 Method for an electroluminescent device
GB0606262A Expired - Fee Related GB2421855B (en) 2003-10-09 2004-10-08 Method for improving the uniformity of emission of an electroluminescent device by irradyating it with ligh

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0323720.3A Ceased GB0323720D0 (en) 2003-10-09 2003-10-09 Method for an electroluminescent device

Country Status (2)

Country Link
GB (2) GB0323720D0 (en)
WO (1) WO2005036665A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08259938A (en) * 1995-03-24 1996-10-08 Toagosei Co Ltd Luminous display element and its production
EP1102317A2 (en) * 1999-11-19 2001-05-23 Sony Corporation Organic EL display apparatus and manufacturing method thereof
WO2002007235A1 (en) * 2000-07-15 2002-01-24 Opsys Limited Patterned organic light emitting device
US6361917B1 (en) * 1994-08-29 2002-03-26 Hoechst Aktiengesellschaft Process for patterning poly(arylenevinylene) polymer films by irradiation with light

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6361917B1 (en) * 1994-08-29 2002-03-26 Hoechst Aktiengesellschaft Process for patterning poly(arylenevinylene) polymer films by irradiation with light
JPH08259938A (en) * 1995-03-24 1996-10-08 Toagosei Co Ltd Luminous display element and its production
EP1102317A2 (en) * 1999-11-19 2001-05-23 Sony Corporation Organic EL display apparatus and manufacturing method thereof
WO2002007235A1 (en) * 2000-07-15 2002-01-24 Opsys Limited Patterned organic light emitting device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Advanced poly-LED displays", Proc. SPIE, vol 5004, 2003, pages 127-139, M Childs et al *

Also Published As

Publication number Publication date
GB2421855B (en) 2007-05-23
WO2005036665A1 (en) 2005-04-21
GB0323720D0 (en) 2003-11-12
GB0606262D0 (en) 2006-05-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20191008