WO2002063701A1 - Electroluminescent device having anode array and reflective cathode focusing feature - Google Patents
Electroluminescent device having anode array and reflective cathode focusing feature Download PDFInfo
- Publication number
- WO2002063701A1 WO2002063701A1 PCT/US2001/049228 US0149228W WO02063701A1 WO 2002063701 A1 WO2002063701 A1 WO 2002063701A1 US 0149228 W US0149228 W US 0149228W WO 02063701 A1 WO02063701 A1 WO 02063701A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- anode
- film
- electroluminescent
- substrate
- anode structure
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract description 36
- 239000010406 cathode material Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000004020 conductor Substances 0.000 claims abstract description 5
- 239000000758 substrate Substances 0.000 claims description 22
- 229920000642 polymer Polymers 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 9
- 229910052737 gold Inorganic materials 0.000 claims description 9
- 239000010931 gold Substances 0.000 claims description 9
- 230000005525 hole transport Effects 0.000 claims description 6
- NIHNNTQXNPWCJQ-UHFFFAOYSA-N fluorene Chemical compound C1=CC=C2CC3=CC=CC=C3C2=C1 NIHNNTQXNPWCJQ-UHFFFAOYSA-N 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 125000003983 fluorenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 125000005678 ethenylene group Chemical class [H]C([*:1])=C([H])[*:2] 0.000 claims description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 229920000412 polyarylene Polymers 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical group [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010408 film Substances 0.000 description 26
- 239000010410 layer Substances 0.000 description 14
- 239000000203 mixture Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 125000001183 hydrocarbyl group Chemical group 0.000 description 3
- 238000012876 topography Methods 0.000 description 3
- 239000010405 anode material Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229920001940 conductive polymer Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920002098 polyfluorene Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000005725 8-Hydroxyquinoline Substances 0.000 description 1
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000002318 adhesion promoter Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002322 conducting polymer Substances 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229960003540 oxyquinoline Drugs 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 150000001629 stilbenes Chemical class 0.000 description 1
- 235000021286 stilbenes Nutrition 0.000 description 1
- 150000003513 tertiary aromatic amines Chemical class 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 125000005389 trialkylsiloxy group Chemical group 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
- H10K2102/351—Thickness
-
- 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
- H10K50/80—Constructional details
- H10K50/805—Electrodes
Definitions
- This invention relates to light emitting devices, especially electroluminescent devices having organic or polymeric light emitting layers.
- Light emitting diodes typically are constructed to have an electroluminescent material (for example, inorganic phosphors or organic light emitting compounds) positioned so as to transport current between two electrodes. Two different structures have been proposed for organic light emitting devices.
- an electroluminescent material for example, inorganic phosphors or organic light emitting compounds
- the cathode and anode are located on the same side of the light emitting material (see, for example, Smela, et al., "Planar Microfabricated Polymer Light Emitting Diodes,” Semicond. Sci. TechnoL, 13 (1998) pp. 433-439).
- a deficiency of this type of structure is that a negative image of the electrode structure will be seen in the emitted light from the device.
- a sandwich structure In the more conventional mode, a sandwich structure is used.
- This structure has a light emitting layer located between a cathode material and a transparent anode.
- the transparent anode is typically indium tin oxide (ITO) borne upon a transparent substrate.
- ITO indium tin oxide
- ITO films on plastic surfaces tend to be much rougher. Such roughness can make deposition of subsequent layers difficult and can lead to current leaks and uneven light emission in a device. Devices made with ITO can also be expensive.
- Extremely thin layers ( ⁇ 40 nm) of gold may also be semitransparent and, thus, have also been used (see, for example, U.S. Patent 5,965,281).
- Unfortunately, such very thin layers tend to have a high resistance to the current flow, which may lead either to restricting usage to very low voltage regimes or, if not, excessive operating temperatures and poorer device performance.
- an approach is still desired for making inexpensive electroluminescent devices and/or flexible electroluminescent devices with reasonable device yield and performance, in which the electrode structure is not highly visible during operation.
- this invention is a light emitting device comprising at least one anode, which comprises a conductive material having a thickness greater than about 50 nm and less than about 1 mm, and a width greater than about 1 ⁇ m and less than about 1 mm; a film comprising an electroluminescent material positioned next to the anode in a manner such that the film conforms to the shape of the anode, and a reflective cathode material positioned on the opposite side of the film from the anode forming a concave reflective surface on the side of the film.
- the anode may be an opaque structure
- light emitted from the electroluminescent material reflects off of the concave reflective surface of the cathode, which serves as a focusing element.
- the light converges due to the focusing action and forms a reasonably homogeneously lighted area. Varying the dimensions of the anode structure varies the optical focusing effect and will create a more or less homogeneous light-emitting area to the viewer.
- this invention is a method of making such a device comprising forming, on a substrate, an anode having a thickness in the range of about 50 nm to 1 mm and a width in the range of 1 ⁇ to 1 mm, applying a composition comprising an electroluminescent material over the anode structure to form a film, which conforms to the shape of the anode, and applying a cathode material over the film in a manner to form a concave reflecting surface.
- Figure 1 is a cross-section (not to scale) of a representative electroluminescent device of this invention.
- Figure 2 is a top view of a representative anode pattern that may be used.
- Figure 3 is a photograph of a top view of a non-optimized test device under a 4.5 V bias, which shows the focussing effect created by the topography in the device.
- the devices of this invention are preferably and conveniently formed on a transparent substrate. While the substrate may be glass, polymeric substrates take full advantage of the flexibility benefits of the proposed structure, as well as the ease of making different shapes. Suitable polymeric substrates include polyesters, such as polyethylene terephthalate, polyethylenenaphthalate, polystyrene, polycarbonates, etc. Applicants contemplate that the substrate could be a temporary support, in which case it need not be transparent.
- the anode could be formed on a surface having good release properties, such as a fluorinated polymer, the electroluminescent material and cathode material could then be applied in order over the anode. The entire structure could then be removed from the substrate and used as desired.
- the substrate may be of a variety of shapes, but preferably is in the form of a sheet or a slab. The sheet may have been molded, for example, into a desired shape before application of the anode and other layers.
- the anode may be any suitable conductive material, preferably having a relatively high work function, that is, a work function greater than about 4.0 eV, more preferably greater than 4.5 eV, and most preferably greater than 5.0 eV.
- the anode structure may be a transparent material, such as ITO.
- suitable materials include gold, silver, copper, nickel, platinum, etc. and various alloys of such materials. Gold is a preferred material.
- the anode structure could also be a composite of a conductive bus line of one material with a second material in contact with the electroluminescent film.
- Such a composite structure may enable improvement of charge injection from the anode structure into the electroluminescent film or reduction of resistance in long thin anode lines.
- ITO could be coated over or adjacent to a conductive metal line.
- the dimensions of the composite anode must be adequate to provide the curvature on the reflective cathode needed to give the desired focus to diminish the appearance of the anode structure.
- an inherently conducting polymer or a polymer composition filled with conductive particles could be used as the anode.
- the anode may be applied by any known method, such as vapor depostion, electroplating, or sputtering.
- the anode structure provides a base upon which other layers are built and the dimensions should be selected to give the desired focus.
- the anode structure has a thickness of at least 0.05 ⁇ m, preferably at least 0.1 ⁇ m, even more preferably at least 0.12 ⁇ m and most preferably at least 0.15 ⁇ m.
- the thickness is preferably no greater than 1000 ⁇ m, more preferably no greater than 100 ⁇ m, more preferably no greater than about 10 ⁇ m, and most preferably no greater than 1 ⁇ m.
- the anode structure may be of any suitable design, such as a line or an array of lines.
- the width of the anode lines is preferably no greater than 2000 ⁇ m, and more preferably no greater than 1000 ⁇ m.
- the width of the anode lines is preferably at least about 1 ⁇ m, more preferably at least 100 ⁇ m, and most preferably at least 200 ⁇ m.
- the film comprising an electroluminescent material is applied over the anode structure in a manner such that the topography is still discernible, that is, the electroluminescent film does not planarize the surface.
- the electroluminescent material may be any known electroluminescent material, but is preferably an organic material, and more preferably a polymeric material. Examples of small molecule organic materials include materials that include, for example, tertiary aromatic amines, metal complexes of 8- hydroxyquinoline, diarylbutadienes, and stilbenes, as disclosed in U.S. Patent 4,769,292
- polystyrene resin examples include polyarylene vinylenes and polyfluorene (see, for example, Kraft, et al., Angew. Chem. Int. Ed., Vol. 37, pp. 402-428 (1998); U.S. Patents 5,247,190; 5,708,130; 4,885,221 5,728,801, and 6,169,163; WO 97/33193 and WO 99/54385; and U.S. Application, Serial Number 08/289,344).
- Polyfluorene based materials are most preferred. Specifically, polymers are preferred which have groups of the formula:
- R 1 is independently, in each occurrence, hydrogen, a C ⁇ . 2 o hydrocarbyl or C ⁇ _ 2 o hydrocarbyl containing one or more S, N, O, P or Si atoms, C . 16 hydrocarbyl carbonyloxy, C 4 . 16 aryl(trialkylsiloxy) or both R 1 may form with the 9-carbon on the fluorene ring a C 5 - 20 ring structure or a C 4 . 20 ring structure containing one or more heteroatoms of S, N or O;
- R is independently, in each occurrence, C ⁇ _ 2 o hydrocarbyl, C ⁇ _ 2 o hydrocarbyloxy, Ci- 20 thioether, Cr ⁇ o hydrocarbylcarbonyloxy or cyano; and a is independently, in each occurrence, 0 or 1.
- substantially all the fluorene groups are connected through the 2 and 7 carbon atoms as shown. There are at least 10 fluorene groups and the polymer has a polydispersity of less than 5.
- the film comprising the electroluminescent material may also comprise other materials blended with the electroluminescent material as may be known in the art, such as stabilizers, adhesion promoters, fillers, hole transport materials, electron transport materials and matrix materials.
- the film optionally, may also comprise more than one layer of various materials.
- These additional layers may be (a) other electroluminescent materials, which may be chosen, for example, to yield a desired color output, (b) materials selected to enhance charge injection from the anode or cathode, for example, a hole transport layer made of a conductive polymer, such as polyaniline, polythiophene, polypyrrole or a mixture thereof doped with a polymeric acid, or (c) materials, such as those which provide barrier or protective properties, provided such materials do not unduly inhibit the light emission or current generating properties of the film.
- materials selected to enhance charge injection from the anode or cathode for example, a hole transport layer made of a conductive polymer, such as polyaniline, polythiophene, polypyrrole or a mixture thereof doped with a polymeric acid, or (c) materials, such as those which provide barrier or protective properties, provided such materials do not unduly inhibit the light emission or current generating properties of the film.
- the total thickness of the film is preferably at least 50 nm, preferably at least 100 nm.
- the total thickness of the film is preferably no greater than 1000, more preferably 700 and most preferably 500, nm.
- the film may be applied by any known method for reliably coating such thin films. Spin coating and ink jet printing are two preferred methods. If a multilayer film is used, more than one coating step may be required.
- a cathode material is applied.
- Suitable cathode materials are typically low work function metals, such as lithium, calcium, ytterbium, and alloys and blends of such metals with metals of higher work function. These materials may be applied by any known method, such as sputtering or vapor deposition.
- the cathode material may be applied as a substantially continuous sheet or may be applied according to a pattern.
- the cathode material is preferably 5 nm to 1 ⁇ m thick.
- Protective layers and interconnects should be used as known in the art and as desired, (see, for example, WO 00/06665 for a method of providing protective packaging for the device).
- the anode 20 for example, gold, is applied to the substrate 10.
- the anode 20 has a thickness t and a width w.
- the electroluminescent film 30 is applied over anode 20 to form an arch pattern or "pocket" around the anode 20.
- the cathode 40 in this case a continuous sheet of material, is applied over the film 30. Light emitted from the film 30 reflects from the cathode 40 and each "pocket" of anode/film/cathode becomes a miniature lamp with shaped reflector geometry.
- the anode structure may advantageously be arranged as a network of connected conducting lines.
- One example of such a structure is shown in Figure 2.
- Anode lines 20 are separated by gaps 21 where no anode material has been applied to the substrate. If a substantially continuous patch or region of light is desired, the gaps between the anode lines should be kept in proportion to the dimensions of the anode and the thickness of the light emitting film.
- the ratio of gap width to width of wires in the range of 0.5:1 to 50:1, may be desirable.
- a grid of 200 nm thick gold lines were applied to a glass substrate, as shown in Figure 2, by thermal deposition in a vacuum using a mask to control where the substrate becomes coated.
- a hole transport layer comprised of polyethylene dioxythiophene was spin coated over the grid to give a film thickness of about 50 nm.
- a polymer composition comprising a blend of a fluorene containing copolymers was spin coated over the hole transport layer.
- a 300 nm layer of calcium was vacuum deposited over the electroluminescent film layer.
- Figure 2 covered an area about 7 mm by 8 mm.
- the ratio of the gap between the gold lines to the width of the lines was about 1:1.
- the topography of the cathode metal over the gold lines provided an image in which the anode pattern is observable but substantially diffused, as shown in Figure 3. With optimization, the anode pattern should become less visible during operation of the device.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US25949001P | 2001-01-03 | 2001-01-03 | |
US60/259,490 | 2001-01-03 |
Publications (1)
Publication Number | Publication Date |
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WO2002063701A1 true WO2002063701A1 (en) | 2002-08-15 |
Family
ID=22985172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/US2001/049228 WO2002063701A1 (en) | 2001-01-03 | 2001-12-19 | Electroluminescent device having anode array and reflective cathode focusing feature |
Country Status (1)
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WO (1) | WO2002063701A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1836722A2 (en) * | 2004-12-30 | 2007-09-26 | E.I. Dupont De Nemours And Company | Electronic device including a guest material within a layer and a process for forming the same |
US7285905B2 (en) | 2001-08-31 | 2007-10-23 | Sony Corporation | Organic electroluminescence device comprising a silver alloy anode and method of manufacturing the same |
WO2008019958A1 (en) * | 2006-08-14 | 2008-02-21 | Schreiner Group Gmbh & Co. Kg | Method for producing a three-dimensional component |
CN101212025B (en) * | 2006-12-28 | 2010-06-09 | 三星移动显示器株式会社 | Organic light emitting diode display device and method of fabricating the same |
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JPH11214163A (en) * | 1998-01-27 | 1999-08-06 | Nec Corp | Organic electromulinescence element and manufacture of the same |
JPH11214162A (en) * | 1998-01-27 | 1999-08-06 | Nec Corp | Organic electroluminescence element and manufacture of the same |
JP2001217078A (en) * | 2000-02-03 | 2001-08-10 | Matsushita Electric Ind Co Ltd | Organic light emitting element and manufacturing method |
US6396208B1 (en) * | 1998-01-27 | 2002-05-28 | Nec Corporation | Organic electroluminescent device and its manufacturing process |
-
2001
- 2001-12-19 WO PCT/US2001/049228 patent/WO2002063701A1/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH11214163A (en) * | 1998-01-27 | 1999-08-06 | Nec Corp | Organic electromulinescence element and manufacture of the same |
JPH11214162A (en) * | 1998-01-27 | 1999-08-06 | Nec Corp | Organic electroluminescence element and manufacture of the same |
US6396208B1 (en) * | 1998-01-27 | 2002-05-28 | Nec Corporation | Organic electroluminescent device and its manufacturing process |
JP2001217078A (en) * | 2000-02-03 | 2001-08-10 | Matsushita Electric Ind Co Ltd | Organic light emitting element and manufacturing method |
Non-Patent Citations (2)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 1999, no. 13 30 November 1999 (1999-11-30) * |
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 25 12 April 2001 (2001-04-12) * |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7285905B2 (en) | 2001-08-31 | 2007-10-23 | Sony Corporation | Organic electroluminescence device comprising a silver alloy anode and method of manufacturing the same |
US8937428B2 (en) | 2001-08-31 | 2015-01-20 | Sony Corporation | Organic electroluminescence device with silver alloy anode and method of manufacturing the same |
US9240564B2 (en) | 2001-08-31 | 2016-01-19 | Sony Corporation | Organic electroluminescence device and method of manufacturing the same |
US9722201B2 (en) | 2001-08-31 | 2017-08-01 | Sony Corporation | Organic electroluminescence device and method of manufacturing the same |
US10020460B2 (en) | 2001-08-31 | 2018-07-10 | Sony Corporation | Electroluminescence device and display device |
US10522781B2 (en) | 2001-08-31 | 2019-12-31 | Sony Corporation | Electroluminescence device and display device |
EP1836722A2 (en) * | 2004-12-30 | 2007-09-26 | E.I. Dupont De Nemours And Company | Electronic device including a guest material within a layer and a process for forming the same |
EP1836722A4 (en) * | 2004-12-30 | 2010-09-29 | Du Pont | Electronic device including a guest material within a layer and a process for forming the same |
WO2008019958A1 (en) * | 2006-08-14 | 2008-02-21 | Schreiner Group Gmbh & Co. Kg | Method for producing a three-dimensional component |
CN101212025B (en) * | 2006-12-28 | 2010-06-09 | 三星移动显示器株式会社 | Organic light emitting diode display device and method of fabricating the same |
US8188649B2 (en) | 2006-12-28 | 2012-05-29 | Samsung Mobile Display Co., Ltd. | Organic light emitting diode display device and method of fabricating the same |
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