US20060014044A1 - Organic light-emitting display with multiple light-emitting modules - Google Patents

Organic light-emitting display with multiple light-emitting modules Download PDF

Info

Publication number
US20060014044A1
US20060014044A1 US10/892,017 US89201704A US2006014044A1 US 20060014044 A1 US20060014044 A1 US 20060014044A1 US 89201704 A US89201704 A US 89201704A US 2006014044 A1 US2006014044 A1 US 2006014044A1
Authority
US
United States
Prior art keywords
organic light
layer
emitting device
material
charge transfer
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.)
Abandoned
Application number
US10/892,017
Inventor
Chung-Wen Ko
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.)
AU Optronics Corp
Original Assignee
AU Optronics Corp
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 AU Optronics Corp filed Critical AU Optronics Corp
Priority to US10/892,017 priority Critical patent/US20060014044A1/en
Assigned to AU OPTRONICS, CORPORATION reassignment AU OPTRONICS, CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KO, CHUNG-WEN
Publication of US20060014044A1 publication Critical patent/US20060014044A1/en
Application status is Abandoned legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y10/00Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L51/00Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
    • H01L51/50Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes [OLED] or polymer light emitting devices [PLED];
    • H01L51/52Details of devices
    • H01L51/5262Arrangements for extracting light from the device
    • H01L51/5278Arrangements for extracting light from the device comprising a repetitive electroluminescent unit between one set of electrodes
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L51/00Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
    • H01L51/0032Selection of organic semiconducting materials, e.g. organic light sensitive or organic light emitting materials
    • H01L51/0045Carbon containing materials, e.g. carbon nanotubes, fullerenes
    • H01L51/0046Fullerenes, e.g. C60, C70
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L51/00Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
    • H01L51/0032Selection of organic semiconducting materials, e.g. organic light sensitive or organic light emitting materials
    • H01L51/005Macromolecular systems with low molecular weight, e.g. cyanine dyes, coumarine dyes, tetrathiafulvalene
    • H01L51/0051Charge transfer complexes
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L51/00Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
    • H01L51/0032Selection of organic semiconducting materials, e.g. organic light sensitive or organic light emitting materials
    • H01L51/005Macromolecular systems with low molecular weight, e.g. cyanine dyes, coumarine dyes, tetrathiafulvalene
    • H01L51/0052Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L51/00Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
    • H01L51/0032Selection of organic semiconducting materials, e.g. organic light sensitive or organic light emitting materials
    • H01L51/005Macromolecular systems with low molecular weight, e.g. cyanine dyes, coumarine dyes, tetrathiafulvalene
    • H01L51/0059Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L51/00Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
    • H01L51/0032Selection of organic semiconducting materials, e.g. organic light sensitive or organic light emitting materials
    • H01L51/0077Coordination compounds, e.g. porphyrin
    • H01L51/0078Phthalocyanine

Abstract

An organic light-emitting device (OLED) includes an anode, a cathode and a plurality of organic light-emitting units. The organic light-emitting units are separated by a charge transfer layer which may be formed of various fullerenes in combination with a further material. The charge transfer layer may be a relatively homogenous layer that is a mixture of fullerene and the further material or it may include two distinct layers including a fullerene layer and a layer of the further material.

Description

    FIELD OF THE INVENTION
  • The present invention relates to electroluminescent displays, and more particularly to organic light-emitting devices and a method of manufacturing such devices.
  • BACKGROUND
  • Organic light-emitting devices, for example organic light-emitting diodes (OLEDs), are broadly researched and utilized for their application in flat-panel displays. Flat-panel displays employing organic light-emitting devices are brighter than liquid crystal displays (LCDs) because organic light-emitting devices can emit light themselves and do not require backlight systems. Additionally, with different organic materials, organic light-emitting devices can emit light in red, green and blue colors with high luminance efficiency. Moreover, organic light-emitting devices can operate with low driving voltages and are viewable from oblique angles.
  • Organic light-emitting devices are usually structured to have a number of layers, including a unit of organic light-emitting material, sandwiched between an anode and a cathode. Buffer layers are often included between the organic light-emitting material and the anode and/or cathode. The unit of organic light-emitting material may consist of multiple layers which typically include an electron transport layer (ETL), an emissive layer (EML), a hole transport layer (HTL) and a hole injection layer (HIL). The basic principle of operation for an organic light-emitting device is that, when a voltage is applied across the anode and cathode, electrons and holes are driven to move to the organic light-emitting material. The electrons and holes meet and emit light. More particularly, when a migrating electron drops from its conduction band potential to a valance band potential in filling a hole, energy is released in the electroluminescent emissive layer as light, which is observable through the light-transmissive substrate upon which the organic light-emitting devices are formed. U.S. Pat. Nos. 6,137,223, 6,579,629, and 6,013,384 are expressly incorporated by reference herein in their entireties, for their teachings on organic light-emitting devices.
  • Limitations of the present organic light-emitting devices are due to the single organic light-emitting unit that is conventionally used. For example, the characteristics of the single organic light-emitting unit determine the efficiency of the optical light emitting device and the maximum achievable luminescence and brightness. The present invention addresses this limitation.
  • SUMMARY OF THE INVENTION
  • To achieve these and other objects, and in view of its purposes, the present invention provides an organic light-emitting device comprising a light-transmissive substrate, an anode, a cathode, and a plurality of organic light-emitting units disposed between the anode and the cathode. Adjacent organic light-emitting units are separated by a charge transfer layer that may advantageously include one or more fullerenes. In another embodiment, the charge transfer layer may be formed of two materials including an electron donating material and an electron accepting material.
  • In another exemplary embodiment, the present invention provides an organic light-emitting device comprising a light transmissive substrate, a light-transmissive anode disposed over the substrate, a first organic light-emitting unit disposed over the anode, a charge transfer layer including fullerene disposed over the first organic light-emitting unit, a second organic light-emitting unit disposed over the charge transfer layer, and a cathode disposed over the second organic light-emitting unit.
  • In yet another exemplary embodiment, the present invention provides a method for forming an organic light-emitting device. The method includes forming an anode over a light transmissive substrate, forming a cathode over the anode, forming a plurality of organic light-emitting units between the anode and the cathode, and forming a charge transfer layer between each adjacent set of the light emitting units, each charge transfer layer including fullerene.
  • BRIEF DESCRIPTION OF THE DRAWING
  • The present invention is best understood from the following detailed description when read in conjunction of the accompanying drawing. It is emphasized that, according to common practice, the various features of the drawing are not necessarily to scale. On the contrary, the dimensions of the various features are arbitrarily expanded or reduced for clarity. Like numerals denote like features throughout the specification and drawing.
  • FIG. 1 illustrates a schematic view of an exemplary embodiment of an organic light-emitting device of the present invention;
  • FIG. 2 illustrates a schematic view of another exemplary embodiment of an organic light-emitting device of the present invention;
  • FIG. 3 is a cut-away view representing a general structure of the organic light-emitting device of the present invention;
  • FIG. 4 illustrates a schematic view of an exemplary organic light-emitting unit used in the organic light-emitting device of the present invention; and
  • FIG. 5 is a schematic view showing an exemplary charge transfer layer of the present invention.
  • DETAILED DESCRIPTION
  • Light is produced when holes and electrons combine to emit energy in an organic light-emitting material that emits light as electromagnetic radiation in response to the energy released by the recombination of the electron-hole pair. Stated alternatively, the organic light-emitting structure emits light in response to the application of an electric potential difference across the anode and cathode, such potential difference causing electrons from the cathode to travel toward the anode and holes from the anode to travel toward cathode, the electrons and holes meeting and recombining in an organic light-emitting layer formed of an electroluminescent material. FIG. 1 shows an exemplary light emitting device that includes two organic light-emitting units separated by a charge transfer layer. FIG. 2 shows another exemplary organic light-emitting device that includes three organic light-emitting units, each adjacent set of organic light-emitting units separated by a charge transfer layer. FIG. 3 is a cut-away view generally depicting a concept of the invention and represents that the organic light-emitting device of the invention includes a plurality of organic light-emitting units, each adjacent set of organic light-emitting units separated by a charge transfer layer. Each of the embodiments shown in FIGS. 1-3 illustrates organic light-emitting device 1 including anode 3 and cathode 5. Anode 3 and cathode 5 are each electrodes and in an exemplary embodiment, anode 3 may be formed over a light transmissive substrate (not shown) which may be formed of glass, quartz, plastics or other suitable materials. Anode 3 may be formed of conductive, light transmissive material such as indium tin oxide (ITO) or other suitable materials and cathode 5 may be formed of various suitable metals. Anode 3 may alternatively be formed of a thin opaque material. In each exemplary embodiment, organic light-emitting device 1 may additionally include an optional buffer layer or layers disposed between cathode 5 and the closest organic light-emitting unit 7 and/or between anode 3 and the adjacent organic light-emitting unit 7.
  • Referring to FIGS. 1-3, charge transfer layer 9 is disposed between adjacent organic light-emitting units 7. An exemplary organic light-emitting unit 7 such as may be used in the structures of FIGS. 1-3, is shown in more detail in FIG. 4 and an exemplary charge transfer layer 9 is shown in more detail in FIG. 5. Organic light-emitting unit 7 may consist of three, four, or other numbers of layers in various exemplary embodiments. FIG. 4 shows organic light-emitting unit 7 including four layers: hole injection layer HIL 13, hole transport layer HTL 15, emissive layer EML 17, and electron transport layer ETL 19. In another exemplary embodiment, the hole injection layer 13 may not be used and organic light-emitting unit 7 may therefore consist of three layers. Various thicknesses and various materials may be used to form these layers, and representative materials are described in previously incorporated U.S. Pat. No. 6,579,629. Hole injection layer 13 and hole transport layer 15 are formed of, or doped with, P-type material, and hole injection layer 13 is advantageously a P+ material. Electron transport layer 19 and emissive layer 17 are N-type materials, or doped with N-type dopants, and electron transport layer 19 is advantageously an N+ type material. Various suitable dopants are available to suitably dope hole injection layer 13, hole transport layer 15, emissive layer 17 and election transfer layer 19. Emissive layer 17 is formed of an electroluminescent material that emits light when an electron-hole pair recombines in this layer.
  • FIG. 5 shows an exemplary charge transfer layer 9. In one exemplary embodiment, charge transfer layer 9 comprises a first material or a second material. The first material may be fullerene, FeCl3, SbCl5, tetra-cyanoquinodimethane (TCNQ), or F4-TCNQ or other materials with strong abilities to accept electrons, and the second material is an electron donating material such as lithium (Li), sodium (Na), potassium (K), cesium (Cs), magnesium (Mg), calcium (Ca), silver (Ag), aluminum (Al), nickel (Ni), tetrathiafulvalenes (TTF), or bis(ethylenedithio)tetrathifulvalenes (BEDT-TTF). The fullerene may be buckminsterfullerene which includes 60 carbons and is thusly designated C60. In other exemplary embodiments, the fullerene may include different numbers of carbons such as C70, C76, C78, C82, C84, C90 and C96. In still another exemplary embodiment, charge transfer layer 9 is formed of an n-type electron accepting first material and a p-type electron-donating second material. In one embodiment, charge transfer layer 9 is formed of a first material of at least one of fullerene, FeCl3, SbCl5, tetra-cyanoquinodimethane (TCNQ), or F4-TCNQ or other materials with strong abilities to accept electrons, and a second material that is an electron donating material such as lithium (Li), sodium (Na), potassium (K), cesium (Cs), magnesium (Mg), calcium (Ca), silver (Ag), aluminum (Al), nickel (Ni), tetrathiafulvalenes (TTF), or bis(ethylenedithio)tetrathifulvalenes (BEDT-TTF).
  • In one exemplary embodiment such as shown in FIG. 5, charge transfer layer 9 may be formed of two distinct layers such as first layer 23 formed of one of the first or second materials and second layer 27 formed of the other of the first or second materials. According to this exemplary embodiment, first layer 23 may include a thickness 25 within the range of 1-200 nanometers and charge transfer layer 9 may have an overall thickness 29 within the range of 1-500 nanometers, but other thicknesses may be used in other exemplary embodiments. In another exemplary embodiment, charge transfer layer 9 may be formed of a generally homogenous single layer formed of a mixture of the first and second materials, with the first material included at a weight percentage ranging from 0.5-99.5% by weight. According to this exemplary embodiment, the first material may advantageously be fullerene. In one exemplary embodiment, the first material may be a p-type material or a triarylamine also used to form hole transport layer 15 or hole injection layer 13, in one or more of the organic light-emitting units 7.
  • In one exemplary embodiment, at least one of the organic light-emitting units 7 may include the hole injection layer 13 and/or the hole transport layer 15 formed of CuPc, copper phthalocyanine or NPB (4,4-bis-[N-(1-Naphthyl)-N-Phenylamino]-bi-phenyl), but other suitable materials may be used.
  • The invention also provides a method for forming the various described organic light-emitting device structures using deposition processes to sequentially form each of the aforementioned films. The method generally includes forming an anode over a light transmissive substrate, forming a cathode over the anode, forming a plurality of organic light-emitting units between the anode and the cathode, and forming a charge transfer layer between each adjacent set of the light emitting units, which themselves may be formed using a sequence of operations. Chemical vapor deposition (CVD), physical vapor deposition (PVD), sputtering, thermal evaporation, e-beam deposition, or other conventional methods may be used to form the sequence of films over a transparent substrate.
  • The preceding merely illustrates the principles of the invention. It will thus be appreciated that those skilled in the art will be able to devise various arrangements which, although not explicitly described or shown herein, embody the principles of the invention and are included within its spirit and scope. Furthermore, all examples and conditional language recited herein are principally intended expressly to be only for pedagogical purposes and to aid the reader in understanding the principles of the invention and the concepts contributed by the inventors to furthering the art, and are to be construed as being without limitation to such specifically recited examples and conditions. Moreover, all statements herein reciting principles, aspects, and embodiments of the invention, as well as specific examples thereof, are intended to encompass both structural and functional equivalents thereof. Additionally, it is intended that such equivalents include both currently known equivalents and equivalents developed in the future, i.e., any elements developed that perform the same function, regardless of structure.
  • This description of the exemplary embodiments is intended to be read in connection with the figures of the accompanying drawing, which are to be considered part of the entire written description. In the description, relative terms such as “lower,” “upper,” “front”, “rear”, “horizontal,” “vertical,” “above,” “below,” “up,” “down,” “top” and “bottom” as well as derivatives thereof (e.g., “horizontally,” “downwardly,” “upwardly,” etc.) should be construed to refer to the orientation as then described or as shown in the drawing under discussion. These relative terms are for convenience of description and do not require that the apparatus be constructed or operated in a particular orientation.
  • Although the invention has been described in terms of exemplary embodiments, it is not limited thereto. Rather, the appended claims should be construed broadly, to include other variants and embodiments of the invention, which may be made by those skilled in the art without departing from the scope and range of equivalents of the invention.

Claims (20)

1. An organic light-emitting device comprising a light transmissive substrate, an anode, a cathode and a plurality of organic light-emitting units disposed between the anode and the cathode, adjacent organic light-emitting units separated by a charge transfer layer.
2. The organic light-emitting device as in claim 1, wherein the charge transfer layer comprises fullerene.
3. The organic light-emitting device as in claim 1, wherein the charge transfer layer comprises a first material being one of fullerene, FeCl3, SbCl5, TCNQ, and F4-TCNQ, and a second material.
4. The organic light-emitting device as in claim 3, wherein the second material comprises at least one of TTF, BEDT-TTF, lithium, sodium, potassium, cesium, magnesium, and calcium, silver, aluminum, and nickel.
5. The organic light-emitting device as in claim 3, wherein the charge transfer layer is a single layer being a mixture of the first material and the second material, the first material composed of fullerene and constituting 0.5 to 99.5 percent of the mixture.
6. The organic light-emitting device as in claim 3, wherein each organic light-emitting unit comprises an electron transport layer, an emissive layer, a hole transport layer, and a hole injection layer, and at least one of a hole transport layer and hole injection layer is formed of CuPc or NPB.
7. The organic light-emitting device as in claim 2, wherein the fullerene includes a structure comprising one of C60, C70, C76, C78, C82, C84, C90, and C96.
8. The organic light-emitting device as in claim 2, wherein the charge transfer layer comprises a fullerene layer and a hole transport layer.
9. The organic light-emitting device as in claim 8, wherein the hole transport layer comprises a p-type dopant material.
10. The organic light-emitting device as in claim 9, wherein the p-type dopant material comprises TCNQ, F4-TCNQ, FeCl3, or SbCl5.
11. The organic light-emitting device as in claim 8, wherein the charge transfer layer includes a thickness within a range of 1-500 nm and the fullerene layer includes a thickness within a range of 1-200 nm.
12. The organic light-emitting device as in claim 3, wherein the charge transfer layer is formed of a first layer of the first material and a second layer of the second material.
13. The organic light-emitting device as in claim 1, wherein the charge transfer layer is formed of an electron donating material and an electron accepting material.
14. The organic light-emitting device as in claim 1, wherein each organic light-emitting unit comprises an electron transport layer, an emissive layer formed of electroluminescent material, and a hole transport layer.
15. The organic light-emitting device as in claim 14, wherein the organic light-emitting unit further comprises at least one hole injection layer.
16. The organic light-emitting device as in claim 1, further comprising at least one buffer layer disposed adjacent the cathode.
17. The organic light-emitting device as in claim 1, wherein a first organic light emitting unit is formed on the anode, the charge transfer layer is formed on the first organic light emitting unit, a second organic light emitting unit is formed on the charge transfer layer and the cathode is formed on the second organic light emitting unit, the anode, first organic light emitting unit, charge transfer layer, second organic light emitting unit and cathode arranged in parallel.
18. The organic light-emitting device as in claim 1, wherein the anode is formed of one of indium tin oxide, a further light transmissive material and an opaque material.
19. An organic light-emitting device comprising a light transmissive substrate, an anode formed of a light-transmissive material disposed over the substrate, a first organic light-emitting unit disposed over the anode, a charge transfer layer including fullerene disposed over the first organic light-emitting unit, a second organic light-emitting unit disposed over the charge transfer layer, and a cathode disposed over the second organic light-emitting unit.
20. A method for forming an organic light-emitting device comprising forming an anode over a light transmissive substrate, forming a cathode over the anode, forming a plurality of organic light-emitting units between the anode and the cathode, and forming a charge transfer layer between each adjacent set of the light emitting units, each charge transfer layer including fullerene.
US10/892,017 2004-07-14 2004-07-14 Organic light-emitting display with multiple light-emitting modules Abandoned US20060014044A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/892,017 US20060014044A1 (en) 2004-07-14 2004-07-14 Organic light-emitting display with multiple light-emitting modules

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/892,017 US20060014044A1 (en) 2004-07-14 2004-07-14 Organic light-emitting display with multiple light-emitting modules
TW94101986A TWI263456B (en) 2004-07-14 2005-01-24 Organic light-emitting device
CN 200510052543 CN100472840C (en) 2004-07-14 2005-02-28 Organic light emitting element
US11/091,044 US7301167B2 (en) 2004-07-14 2005-03-28 Organic light emitting devices and electroluminescent display panel applying the same

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/091,044 Continuation-In-Part US7301167B2 (en) 2004-07-14 2005-03-28 Organic light emitting devices and electroluminescent display panel applying the same

Publications (1)

Publication Number Publication Date
US20060014044A1 true US20060014044A1 (en) 2006-01-19

Family

ID=34887870

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/892,017 Abandoned US20060014044A1 (en) 2004-07-14 2004-07-14 Organic light-emitting display with multiple light-emitting modules
US11/091,044 Active 2025-06-16 US7301167B2 (en) 2004-07-14 2005-03-28 Organic light emitting devices and electroluminescent display panel applying the same

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/091,044 Active 2025-06-16 US7301167B2 (en) 2004-07-14 2005-03-28 Organic light emitting devices and electroluminescent display panel applying the same

Country Status (3)

Country Link
US (2) US20060014044A1 (en)
CN (1) CN100472840C (en)
TW (1) TWI263456B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060011927A1 (en) * 2004-07-14 2006-01-19 Au Optronics Corp. Organic light emitting devices and electroluminescent display panel applying the same
US20070170421A1 (en) * 2006-01-25 2007-07-26 Eastman Kodak Company Fluorocarbon electrode modification layer
US20080001141A1 (en) * 2006-06-28 2008-01-03 Unidym, Inc. Doped Transparent and Conducting Nanostructure Networks
US20110233531A1 (en) * 2010-03-29 2011-09-29 Hee-Joo Ko Organic light-emitting device
US20120267644A1 (en) * 2011-04-21 2012-10-25 Se-Jin Cho Organic light emitting diode display
CN104051641A (en) * 2013-03-12 2014-09-17 海洋王照明科技股份有限公司 Laminated organic electroluminescent device and manufacturing method thereof
US9755176B2 (en) 2014-07-02 2017-09-05 Samsung Display Co., Ltd. Organic light-emitting device

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008509565A (en) 2004-08-13 2008-03-27 テヒニッシェ ウニヴァズィテート ドレスデン Emission component laminate for
EP1705727B1 (en) 2005-03-15 2007-12-26 Novaled AG Light emitting element
DE502005002218D1 (en) 2005-04-13 2008-01-24 Novaled Ag Assembly for an organic light emitting diode of the pin type and methods for preparing
DE502005004675D1 (en) 2005-12-21 2008-08-21 Novaled Ag organic component
EP1804308B1 (en) * 2005-12-23 2012-04-04 Novaled AG An organic light emitting device with a plurality of organic electroluminescent units stacked upon each other
EP1804309B1 (en) 2005-12-23 2008-07-23 Novaled AG Electronic device with a layer structure of organic layers
EP1808909A1 (en) 2006-01-11 2007-07-18 Novaled AG Electroluminescent light-emitting device
EP1848049B1 (en) 2006-04-19 2009-12-09 Novaled AG Light emitting device
TWI317182B (en) * 2006-07-07 2009-11-11 Au Optronics Corp Tandem organic electroluminescent elements and uses of the same
CN101130427B (en) 2006-08-23 2010-08-11 中国科学院化学研究所 K-(BEDT-TTF)*Cu(SCN)*nano rods array, method of producing the same and application of the same
DE102006059509B4 (en) * 2006-12-14 2012-05-03 Novaled Ag Organic light emitting device
DE102007019260A1 (en) 2007-04-17 2008-10-23 Novaled Ag Non-volatile organic memory element
DE102008036062B4 (en) 2008-08-04 2015-11-12 Novaled Ag An organic field effect transistor
DE102008036063B4 (en) * 2008-08-04 2017-08-31 Novaled Gmbh An organic field effect transistor
KR101815072B1 (en) * 2009-11-24 2018-01-30 유니버시티 오브 플로리다 리서치 파운데이션, 인크. Method and apparatus for sensing infrared radiation
SG185375A1 (en) 2010-05-24 2012-12-28 Univ Florida Method and apparatus for providing a charge blocking layer on an infrared up-conversion device
AU2012275060A1 (en) 2011-06-30 2014-01-30 Nanoholdings, Llc A method and apparatus for detecting infrared radiation with gain
KR20150099517A (en) * 2012-11-06 2015-08-31 오티아이 루미오닉스 인크. Method for depositing a conductive coating on a surface
CN103236501B (en) * 2013-03-13 2015-10-21 华中科技大学 Metal halide doped organic hole-transporting layer, preparation method and application thereof
CN108431981A (en) 2015-12-16 2018-08-21 Oti领英有限公司 Barrier coating for opto-electronic devices

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5703436A (en) * 1994-12-13 1997-12-30 The Trustees Of Princeton University Transparent contacts for organic devices
US6274980B1 (en) * 1998-11-16 2001-08-14 The Trustees Of Princeton University Single-color stacked organic light emitting device
US20010046612A1 (en) * 2000-02-08 2001-11-29 Samsung Sdi Co., Ltd. Hole transporting compounds having good thermal stability for organic electroluminescent device and method for production thereof
US6337492B1 (en) * 1997-07-11 2002-01-08 Emagin Corporation Serially-connected organic light emitting diode stack having conductors sandwiching each light emitting layer
US20030189401A1 (en) * 2002-03-26 2003-10-09 International Manufacturing And Engineering Services Co., Ltd. Organic electroluminescent device
US20040214041A1 (en) * 2003-04-28 2004-10-28 Zheng-Hong Lu Light-emitting devices with fullerene layer
US20060011927A1 (en) * 2004-07-14 2006-01-19 Au Optronics Corp. Organic light emitting devices and electroluminescent display panel applying the same

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3150331B2 (en) 1990-09-28 2001-03-26 株式会社東芝 The organic thin film element
JPH09152726A (en) 1995-11-30 1997-06-10 Fujitsu Ltd Photosensitive material, photoreceptor and image forming device using them
JPH10270171A (en) 1997-01-27 1998-10-09 Aimesu:Kk Organic electroluminescent element
JPH1187064A (en) 1997-09-08 1999-03-30 Mitsubishi Electric Corp The photoelectric conversion element
US6137223A (en) 1998-07-28 2000-10-24 Eastman Kodak Company Electron-injecting layer formed from a dopant layer for organic light-emitting structure
US6579629B1 (en) 2000-08-11 2003-06-17 Eastman Kodak Company Cathode layer in organic light-emitting diode devices
US6872472B2 (en) 2002-02-15 2005-03-29 Eastman Kodak Company Providing an organic electroluminescent device having stacked electroluminescent units
US6784017B2 (en) * 2002-08-12 2004-08-31 Precision Dynamics Corporation Method of creating a high performance organic semiconductor device
US7147936B2 (en) * 2002-08-23 2006-12-12 Agfa Gevaert Layer configuration with improved stability to sunlight exposure
US6833201B2 (en) * 2003-01-31 2004-12-21 Clemson University Nanostructured-doped compound for use in an EL element
KR101102282B1 (en) * 2003-07-10 2012-01-03 가부시키가이샤 이디알 스타 Light-emitting element and light-emitting device
US7419846B2 (en) * 2004-04-13 2008-09-02 The Trustees Of Princeton University Method of fabricating an optoelectronic device having a bulk heterojunction

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5703436A (en) * 1994-12-13 1997-12-30 The Trustees Of Princeton University Transparent contacts for organic devices
US6337492B1 (en) * 1997-07-11 2002-01-08 Emagin Corporation Serially-connected organic light emitting diode stack having conductors sandwiching each light emitting layer
US6274980B1 (en) * 1998-11-16 2001-08-14 The Trustees Of Princeton University Single-color stacked organic light emitting device
US20010046612A1 (en) * 2000-02-08 2001-11-29 Samsung Sdi Co., Ltd. Hole transporting compounds having good thermal stability for organic electroluminescent device and method for production thereof
US20030189401A1 (en) * 2002-03-26 2003-10-09 International Manufacturing And Engineering Services Co., Ltd. Organic electroluminescent device
US20040214041A1 (en) * 2003-04-28 2004-10-28 Zheng-Hong Lu Light-emitting devices with fullerene layer
US20060011927A1 (en) * 2004-07-14 2006-01-19 Au Optronics Corp. Organic light emitting devices and electroluminescent display panel applying the same

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060011927A1 (en) * 2004-07-14 2006-01-19 Au Optronics Corp. Organic light emitting devices and electroluminescent display panel applying the same
US7301167B2 (en) * 2004-07-14 2007-11-27 Au Optronics Corp. Organic light emitting devices and electroluminescent display panel applying the same
US20070170421A1 (en) * 2006-01-25 2007-07-26 Eastman Kodak Company Fluorocarbon electrode modification layer
US7799439B2 (en) * 2006-01-25 2010-09-21 Global Oled Technology Llc Fluorocarbon electrode modification layer
US20080001141A1 (en) * 2006-06-28 2008-01-03 Unidym, Inc. Doped Transparent and Conducting Nanostructure Networks
US20110233531A1 (en) * 2010-03-29 2011-09-29 Hee-Joo Ko Organic light-emitting device
US9159947B2 (en) 2010-03-29 2015-10-13 Samsung Display Co., Ltd. Organic light-emitting device
US20120267644A1 (en) * 2011-04-21 2012-10-25 Se-Jin Cho Organic light emitting diode display
CN104051641A (en) * 2013-03-12 2014-09-17 海洋王照明科技股份有限公司 Laminated organic electroluminescent device and manufacturing method thereof
US9755176B2 (en) 2014-07-02 2017-09-05 Samsung Display Co., Ltd. Organic light-emitting device

Also Published As

Publication number Publication date
TW200603665A (en) 2006-01-16
US7301167B2 (en) 2007-11-27
CN100472840C (en) 2009-03-25
US20060011927A1 (en) 2006-01-19
TWI263456B (en) 2006-10-01
CN1649459A (en) 2005-08-03

Similar Documents

Publication Publication Date Title
Shen et al. Three-color, tunable, organic light-emitting devices
JP3884564B2 (en) The organic el light emitting element and a light emitting device using the same
US6420031B1 (en) Highly transparent non-metallic cathodes
JP3993129B2 (en) The organic electroluminescent device
KR100718765B1 (en) Organic electroluminescent divice comprising a buffer layer and method for fabricating the same
KR100880881B1 (en) Organic devices, organic electroluminescent devices and organic solar cells
JP5328402B2 (en) Having a mixed layer structure phosphorescentdoped is very stable and efficient organic light emitting devices
US9178185B2 (en) Patterning method for OLEDS
US20090009072A1 (en) Organic Light Emitting Device With a Plurality of Organic Electroluminescent Units Stacked Upon Each Other
US8680543B2 (en) Light Emitting Element Having a Capping Layer on an Electrode, Light Emitting Device Having the Same and Method for Manufacturing the Same
US20070286944A1 (en) Fabrication of full-color oled panel using micro-cavity structure
JP4324131B2 (en) The organic electroluminescent device and a manufacturing method thereof
CN104733631B (en) A light emitting element, a light emitting device, an electronic device and a lighting device
US20120098012A1 (en) Organic light emitting diode device
US20080284325A1 (en) Organic electroluminescent device and method for preparing the same
US7141924B2 (en) Multi-layer cathode in organic light-emitting devices
Karzazi Organic light emitting diodes: Devices and applications
JP3852552B2 (en) The organic electroluminescent device
US9343689B2 (en) Light-emitting element, light-emitting device, electronic device, and lighting device
US20090146930A1 (en) Organic electro-luminescent display apparatus
EP2128911A2 (en) Organic light emitting display device
KR20090034988A (en) Organic optoelectronic device electrodes with nanotubes
CN101552283B (en) Organic light-emitting display device
US20090091255A1 (en) White organic light emitting device
KR20110032589A (en) Organic light emitting diode device

Legal Events

Date Code Title Description
AS Assignment

Owner name: AU OPTRONICS, CORPORATION, TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KO, CHUNG-WEN;REEL/FRAME:015737/0745

Effective date: 20040623

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION