TW200611607A - White organic light emitting device using three emissive layer - Google Patents

White organic light emitting device using three emissive layer

Info

Publication number
TW200611607A
TW200611607A TW093128797A TW93128797A TW200611607A TW 200611607 A TW200611607 A TW 200611607A TW 093128797 A TW093128797 A TW 093128797A TW 93128797 A TW93128797 A TW 93128797A TW 200611607 A TW200611607 A TW 200611607A
Authority
TW
Taiwan
Prior art keywords
emission
white
layers
contribute
light emitting
Prior art date
Application number
TW093128797A
Other languages
Chinese (zh)
Other versions
TWI249368B (en
Inventor
Jong-Wook Park
Ho-Cheol Park
Original Assignee
Vistorm Co 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 Vistorm Co Ltd filed Critical Vistorm Co Ltd
Application granted granted Critical
Publication of TWI249368B publication Critical patent/TWI249368B/en
Publication of TW200611607A publication Critical patent/TW200611607A/en

Links

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
    • 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
    • H10K50/13—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 comprising stacked EL layers within one EL unit
    • 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
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/14—Carrier transporting layers
    • H10K50/16—Electron transporting layers
    • H10K50/165—Electron transporting layers comprising dopants
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2101/00—Properties of the organic materials covered by group H10K85/00
    • H10K2101/40—Interrelation of parameters between multiple constituent active layers or sublayers, e.g. HOMO values in adjacent layers

Abstract

The present invention relates to white organic light emitting devices including a substrate, an anode, a hole injecting layer, a hole transporting layer, red, green, and blue emission layers, a white balancing layer, an electron transporting layer, and a cathode deposited on the substrate. In this structure, since it is possible to control the emission ratio of the three-color emission layers, excitons which do not contribute to blue light emission contribute to yellow or red light emission. Green light emission is enhanced by an exciton confinement effect. As a result, all three-color layers contribute to generation of white light with high efficiency. Furthermore, by using the white balancing layer, it is possible to control the emission ratio of the plurality of emission layers to extremely enhance efficiency of emission of white light.
TW093128797A 2003-05-23 2004-09-23 White organic light emitting device using three emissive layer TWI249368B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2003-0032915A KR100495594B1 (en) 2003-05-23 2003-05-23 White organic light emitting device using three emissive layer

Publications (2)

Publication Number Publication Date
TWI249368B TWI249368B (en) 2006-02-11
TW200611607A true TW200611607A (en) 2006-04-01

Family

ID=37377902

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093128797A TWI249368B (en) 2003-05-23 2004-09-23 White organic light emitting device using three emissive layer

Country Status (2)

Country Link
KR (1) KR100495594B1 (en)
TW (1) TWI249368B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100759548B1 (en) * 2004-10-15 2007-09-18 삼성에스디아이 주식회사 Organic electroluminescence display
KR101282400B1 (en) 2006-08-24 2013-07-04 한국과학기술원 Organic light emitting diode display
KR100899423B1 (en) * 2007-08-16 2009-05-27 삼성모바일디스플레이주식회사 Organic light emitting display device and method of fabricating the same
TWI638583B (en) * 2007-09-27 2018-10-11 半導體能源研究所股份有限公司 Light-emitting element, light-emitting device, and electronic appliance
JP2009188045A (en) * 2008-02-04 2009-08-20 Fuji Electric Holdings Co Ltd Organic electroluminescent device
KR101453874B1 (en) * 2008-03-04 2014-10-21 삼성디스플레이 주식회사 White organic light emitting device
KR102133407B1 (en) * 2014-04-29 2020-07-14 엘지디스플레이 주식회사 White organic light emitting device
KR102279513B1 (en) * 2014-04-29 2021-07-19 엘지디스플레이 주식회사 White organic light emitting device
CN111969023A (en) * 2020-08-28 2020-11-20 京东方科技集团股份有限公司 Display substrate, display device and test method

Also Published As

Publication number Publication date
KR20040100523A (en) 2004-12-02
KR100495594B1 (en) 2005-06-14
TWI249368B (en) 2006-02-11

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees