WO2009028832A3 - Hybrid white organic light emitting device and method of manufacturing the same - Google Patents
Hybrid white organic light emitting device and method of manufacturing the same Download PDFInfo
- Publication number
- WO2009028832A3 WO2009028832A3 PCT/KR2008/004869 KR2008004869W WO2009028832A3 WO 2009028832 A3 WO2009028832 A3 WO 2009028832A3 KR 2008004869 W KR2008004869 W KR 2008004869W WO 2009028832 A3 WO2009028832 A3 WO 2009028832A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- emission layer
- fluorescent
- oled
- light emitting
- same
- Prior art date
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
- H05B33/14—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
- H10K50/10—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]
- H10K50/11—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
- H10K2101/00—Properties of the organic materials covered by group H10K85/00
- H10K2101/10—Triplet emission
-
- 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
- H10K2101/27—Combination of fluorescent and phosphorescent emission
-
- 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
- H10K2101/30—Highest occupied molecular orbital [HOMO], lowest unoccupied molecular orbital [LUMO] or Fermi energy values
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Provided are a hybrid white organic light emitting diode (OLED) and a method of fabricating the same. A HOMO level difference between a fluorescent emission layer and an electron transport layer in an organic emission layer (OLED) becomes higher than that between the other layers or a LUMO level difference between a fluorescent emission layer and a hole transport layer is higher than that between the other layers, so that a recombination region is restricted to a part of an emission layer to obtain high-efficiency fluorescent light emission. In addition, triplet excitons that are not used in a fluorescent emission layer are transferred to an auxiliary emission layer formed to be spaced apart from a recombination region by a predetermined distance to emit light in a different color from the fluorescent emission layer, so that both singlet and triplet exicitons formed in the OLED are used to obtain high-efficiency white light emission.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/664,040 US20100187552A1 (en) | 2007-08-24 | 2008-08-21 | Hybrid white organic light emitttng device and method of manufacturing the same |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2007-0085424 | 2007-08-24 | ||
KR20070085424 | 2007-08-24 | ||
KR10-2008-0066177 | 2008-07-08 | ||
KR1020080066177A KR100957781B1 (en) | 2007-08-24 | 2008-07-08 | The hybrid white organic emitting device and the method of manufacturing the Same |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009028832A2 WO2009028832A2 (en) | 2009-03-05 |
WO2009028832A3 true WO2009028832A3 (en) | 2009-04-23 |
Family
ID=40387999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2008/004869 WO2009028832A2 (en) | 2007-08-24 | 2008-08-21 | Hybrid white organic light emitting device and method of manufacturing the same |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2009028832A2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8604689B2 (en) | 2010-11-11 | 2013-12-10 | Nitto Denko Corporation | Hybrid composite emissive construct and light-emitting devices using the same |
US9859517B2 (en) | 2012-09-07 | 2018-01-02 | Nitto Denko Corporation | White organic light-emitting diode |
US10020458B2 (en) | 2014-12-18 | 2018-07-10 | Lg Display Co., Ltd. | White organic light-emitting display device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6645645B1 (en) * | 2000-05-30 | 2003-11-11 | The Trustees Of Princeton University | Phosphorescent organic light emitting devices |
US6727644B2 (en) * | 2001-08-06 | 2004-04-27 | Eastman Kodak Company | Organic light-emitting device having a color-neutral dopant in an emission layer and in a hole and/or electron transport sublayer |
US20060158104A1 (en) * | 2004-12-13 | 2006-07-20 | Toshiki Iijima | Organic EL device |
KR20060084733A (en) * | 2005-01-20 | 2006-07-25 | 삼성에스디아이 주식회사 | An organic electroluminescent device and a method for preparing the same |
-
2008
- 2008-08-21 WO PCT/KR2008/004869 patent/WO2009028832A2/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6645645B1 (en) * | 2000-05-30 | 2003-11-11 | The Trustees Of Princeton University | Phosphorescent organic light emitting devices |
US6727644B2 (en) * | 2001-08-06 | 2004-04-27 | Eastman Kodak Company | Organic light-emitting device having a color-neutral dopant in an emission layer and in a hole and/or electron transport sublayer |
US20060158104A1 (en) * | 2004-12-13 | 2006-07-20 | Toshiki Iijima | Organic EL device |
KR20060084733A (en) * | 2005-01-20 | 2006-07-25 | 삼성에스디아이 주식회사 | An organic electroluminescent device and a method for preparing the same |
Also Published As
Publication number | Publication date |
---|---|
WO2009028832A2 (en) | 2009-03-05 |
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