WO2004075607A1 - 有機el素子及びその製造方法 - Google Patents
有機el素子及びその製造方法 Download PDFInfo
- Publication number
- WO2004075607A1 WO2004075607A1 PCT/JP2003/001892 JP0301892W WO2004075607A1 WO 2004075607 A1 WO2004075607 A1 WO 2004075607A1 JP 0301892 W JP0301892 W JP 0301892W WO 2004075607 A1 WO2004075607 A1 WO 2004075607A1
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- Prior art keywords
- region
- organic
- film
- pixel electrode
- substrate
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000010408 film Substances 0.000 claims abstract description 126
- 239000011248 coating agent Substances 0.000 claims abstract description 40
- 238000000576 coating method Methods 0.000 claims abstract description 40
- 239000010410 layer Substances 0.000 claims abstract description 38
- 239000011229 interlayer Substances 0.000 claims abstract description 30
- 239000000758 substrate Substances 0.000 claims abstract description 29
- 239000010409 thin film Substances 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 10
- 239000012298 atmosphere Substances 0.000 claims description 8
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 238000002834 transmittance Methods 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 229910052738 indium Inorganic materials 0.000 claims description 3
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 229910052814 silicon oxide Inorganic materials 0.000 description 12
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 7
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 5
- 229910000583 Nd alloy Inorganic materials 0.000 description 5
- 229910052750 molybdenum Inorganic materials 0.000 description 5
- 239000011733 molybdenum Substances 0.000 description 5
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 5
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 229910021417 amorphous silicon Inorganic materials 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 230000005525 hole transport Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 101100489577 Solanum lycopersicum TFT10 gene Proteins 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 for example Inorganic materials 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007738 vacuum evaporation 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
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78651—Silicon transistors
- H01L29/7866—Non-monocrystalline silicon transistors
-
- 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
- H10K50/81—Anodes
-
- 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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/126—Shielding, e.g. light-blocking means over the TFTs
-
- 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
- H10K59/80—Constructional details
- H10K59/805—Electrodes
- H10K59/8051—Anodes
Definitions
- the present invention relates to an organic EL device and a method for manufacturing the same, and more particularly, to an organic EL device having a structure in which an organic luminescent material layer and an upper electrode are stacked on a pixel electrode connected to a thin film transistor, and a method for manufacturing the same.
- the thin film transistor (TFT) 10 includes a first region R1 and a second region R2 serving as a source and a drain, a channel region C between the first region R1 and the second region R2, and a gate. It is configured to include the electrode G.
- An intermediate connection member 15 is formed on the first region R1 of the TFT 10, and a signal line 16 is connected to the second region R2.
- An interlayer insulating film 20 is formed so as to cover the TFT 10, the intermediate connection member 15, and the signal line 16.
- a transparent pixel electrode 25 made of indium tin oxide (ITO) is formed on the interlayer insulating film 20.
- a coating film 26 arranged so as to overlap the outer periphery of the pixel electrode 25 covers the edge of the pixel electrode 25.
- the organic light emitting layer 30 is formed on the pixel electrode 25 inside the coating film 26.
- the edge of the organic light emitting layer 30 is suspended on the coating film 26.
- An upper electrode 35 is formed on the organic light emitting layer 30 and the interlayer insulating film 20. The coating film 26 The pixel electrode 25 and the upper electrode 35 are prevented from being short-circuited.
- a photosensitive resist material is used as the coating film 26 .
- the film can be patterned in three steps: coating, exposure, and development of the resist material.
- extra steps such as formation of an insulating film, etching using a resist pattern, and removal of a resist pattern are required.
- the manufacturing process can be simplified.
- the coating film 26 shown in FIG. 6 When a photosensitive resist material is used for the coating film 26 shown in FIG. 6, when the pixel electrode 25 is exposed to oxygen plasma, the coating film 26 is etched. Therefore, as a method of forcibly oxidizing the surface of the pixel electrode 25, it is preferable to perform ultraviolet irradiation in an ozone atmosphere.
- a first region and a second region formed on a substrate and serving as a source and a drain, a channel region between the first region and the second region, and a gate electrode are formed.
- the thin film transistor chip A light-shielding film that covers an area overlapping with the channel region and shields ultraviolet light, an organic light-emitting layer including an organic light-emitting material disposed on the pixel electrode, and an upper electrode disposed on the organic light-emitting layer
- An organic EL device is provided.
- a first region and a second region serving as a source and a drain, a channel region between the first region and the second region, and a gate region are formed on the main surface of the substrate.
- a method for producing an organic EL device comprising: a step of forming an organic light-emitting layer including: an upper electrode; and a step of forming an upper electrode on the organic light-emitting layer.
- the light shielding film shields the ultraviolet light, so that the intensity of the ultraviolet light reaching the channel region of TFT is reduced. For this reason, it is possible to prevent deterioration of the TFT characteristics.
- FIG. 1 is a cross-sectional view of the organic EL device according to the first embodiment.
- FIG. 4A is a graph showing the characteristics of the TFT of the organic EL element according to the first embodiment before and after ultraviolet irradiation
- FIG. 4B is a graph showing the ultraviolet irradiation of the TFT of the conventional organic EL element. It is a graph which shows the characteristic before and after irradiation.
- FIG. 5 is a cross-sectional view of the organic EL device according to the first embodiment.
- FIG. 6 is a cross-sectional view of a conventional organic EL device. BEST MODE FOR CARRYING OUT THE INVENTION
- An insulating film 17 having a thickness of 300 to 500 nm made of silicon oxide or a stack of silicon oxide and silicon nitride is formed on the substrate 1 so as to cover the TFT 10.
- An opening penetrating the edge film 17 is formed.
- a signal line 16 made of a laminate of molybdenum (Mo) or titanium (Ti) / aluminum (A1) / molybdenum (Mo) is formed on the insulating film 17.
- the signal line 16 is connected to the second region R2 of the TFT 10 via the inside of the opening formed in the insulating film 17.
- An interlayer insulating film 20 is formed on the insulating film 17 so as to cover the signal line 16 and the intermediate connecting member 15.
- the interlayer insulating film 20 is formed of a photosensitive resin (for example, acrylic resin), and has a thickness of 3. Om. Note that the surface of the interlayer insulating film 20 is flattened.
- An opening exposing the upper surface of the intermediate connection member 15 is formed in the interlayer insulating film 20.
- a pixel electrode 25 made of IT is formed on the surface of the interlayer insulating film 20.
- the pixel electrode 25 is connected to the intermediate connection member 15 via an opening formed in the interlayer insulating film 20.
- the pixel electrode 25 is electrically connected to the first region R1 of the TFT 10 via the intermediate connection member 15.
- a coating film 26 disposed along the outer periphery of the pixel electrode 25 covers the pixel electrode 25 and also covers a region of the surface of the interlayer insulating film 20 above the TFT 10.
- the coating film 26 is formed of a photosensitive resist material, for example, a nopolak-based resist material.
- An organic light emitting layer 30 is formed on a region of the surface of the pixel electrode 25 that is not covered with the coating film 26.
- the organic light emitting layer 30 is, for example, a four-layer structure in which a hole injection layer 30 ⁇ , a hole transport layer 30 ⁇ , a light emitting layer 30 C, and an electron transport layer 30 D are stacked in this order from the pixel electrode 25 side. Having a structure. The edge of the organic light emitting layer 30 extends to a part of the upper surface of the coating film 26.
- the upper electrode 35 covers the organic light emitting layer 30 and the coating film 26.
- the upper electrode 35 is formed of aluminum and has a thickness of 100 to 200 nm. A voltage is applied to both so that the pixel electrode 25 becomes a positive electrode and the upper electrode 35 becomes a negative electrode.
- the coating film 26 prevents a short circuit between the pixel electrode 25 and the upper electrode 35. Electric current is injected into the organic light emitting layer 30 Light emission occurs. This light is emitted outside through the substrate 1.
- a substrate 1 is produced by depositing a silicon nitride film having a thickness of 5 Onm on a surface of a glass substrate such as Corning # 1737 by plasma-enhanced chemical vapor deposition (PECVD). Further, a silicon oxide film is deposited on the silicon nitride film by PEC VD to a thickness of about 150 to 300 nm. Then, an amorphous silicon film is deposited by PEC VD.
- PECVD plasma-enhanced chemical vapor deposition
- the amorphous silicon film is polycrystallized by irradiating an excimer laser with a wavelength of 308 nm. Pal Suenerugi density of the irradiated excimer monodentate is 300 ⁇ 40 OmJZcm 2.
- a polycrystalline silicon film 11 is obtained.
- the polycrystalline silicon film 11 is partially etched by reactive ion etching to leave the polycrystalline silicon film 11 in a portion where the TFT is to be arranged.
- a silicon oxide film having a thickness of 100 to 150 ⁇ m is formed by PECVD so as to cover the polycrystalline silicon film 11.
- An A1Nd alloy film having a thickness of 300 to 400 nm is formed on the silicon oxide film by sputtering.
- the surface of the A 1 Nd alloy film is covered with a resist pattern, and the A 1 Nd alloy film is wet-etched. While the resist pattern remains, the silicon oxide film under the A 1 Nd alloy film is dry-etched using CHF 3 . Further, while leaving the resist pattern, the AlNd alloy film is laterally etched to reduce the AlNd alloy film. Thus, a gate insulating film I made of silicon oxide and a gate electrode G made of A 1 Nd alloy are formed. After the side etching of the A 1 Nd alloy film, the resist pattern is removed.
- An insulating film 17 composed of a stack of a 50-nm-thick silicon oxide layer and a 350-nm-thick silicon nitride layer is formed on the substrate 1 by PECVD so as to cover the TFT 10. An opening is formed in a required portion of the insulating film 17.
- the intermediate connecting member 15 and the signal line 16 were formed by depositing a film in which a titanium layer having a thickness of 3 Onm, an aluminum layer having a thickness of 300 nm, and a molybdenum layer having a thickness of 50 nm were laminated and performing patterning. Form.
- An interlayer insulating film 20 made of a photosensitive resin (for example, acrylic resin) is formed by spin coating so as to cover the intermediate connection member 15 and the signal line 16. An opening exposing the upper surface of the intermediate connection member 15 is formed in the interlayer insulating film 20.
- a pixel electrode 25 is formed by depositing and patterning an ITO film by sputtering.
- the pixel electrode 25 is connected to the intermediate connecting member 15 via an opening formed in the interlayer insulating film 20.
- a coating film 26 is formed by applying a photosensitive resist material, performing exposure and development.
- the coating film 26 overlaps the outer periphery of the pixel electrode 25 and overlaps the TFT 10.
- the substrate is placed in an ozone atmosphere, and the surface on which the pixel electrodes 25 are formed is irradiated with ultraviolet rays using a low-pressure mercury lamp.
- the main wavelength of the irradiated ultraviolet light is 254 nm.
- the UV intensity on the substrate surface is about 6.7 mWZcm 2 , and the irradiation time is 20 minutes.
- an organic layer comprising a hole injection layer 30A, a hole transport layer 30B, a light emitting layer 30C, and an electron transport layer 30D is formed on the pixel electrode 25 by vacuum deposition using a shadow mask.
- the light emitting layer 30 is formed.
- an upper electrode 35 made of aluminum is formed by vacuum evaporation.
- the characteristics of the organic light emitting layer 30 can be improved by exposing the surface of the pixel electrode 25 made of ITO to an ozone atmosphere and performing ultraviolet irradiation. Similar effects can be expected when the pixel electrode 25 is formed of a transparent conductive material containing indium.
- the coating film 26 is exposed to the ultraviolet light during the irradiation of the ultraviolet light shown in FIG. 3B. In order to shield light, the intensity of ultraviolet light reaching the TFT 10 is reduced. Therefore, it is possible to prevent the TFT 10 from deteriorating in characteristics due to ultraviolet irradiation. If the coating film 26 is arranged so as to overlap at least the channel region C of the TFT 10, it is possible to prevent the characteristics of the TFT 10 from deteriorating.
- FIG. 4A shows the relationship between the gate voltage of the TFT 10 and the current between the source and drain.
- the horizontal axis represents the gate voltage in units of “V”, and the vertical axis represents the source-drain current in units of “A”.
- the black circles in the figure indicate the characteristics before UV irradiation, and the white circles indicate the characteristics after UV irradiation.
- FIG. 4B shows the TFT characteristics when ultraviolet irradiation is performed without shielding the coating film 26.
- the black circles in the figure indicate the characteristics before UV irradiation, and the white circles indicate the characteristics after UV irradiation.
- the threshold value fluctuates and the on-current decreases due to the UV irradiation.
- the coating film 26 shields the ultraviolet light incident on the TFT 10 from light as in the first embodiment, no change in the threshold value and no decrease in the on-current are observed.
- the ultraviolet transmittance of the coating film 26 be 30% or less.
- the transmittance of the coating film 26 at a wavelength of 254 nm is preferably 30% or less.
- the ultraviolet irradiation is performed in an ozone atmosphere, but the ultraviolet irradiation may be performed in an oxidizing atmosphere other than ozone.
- FIG. 5 shows a cross-sectional view of the organic EL device according to the second embodiment.
- the coating film 26 covering the green of the pixel electrode 25 was extended to the region above the TFT 10, and a part of the coating film 26 was used as a light shielding film.
- the coating film 26 only covers the edge of the pixel electrode 25 and does not extend to above the TFT 10. Instead, the region above the TFT 10 is covered with a metal, for example, aluminum light-shielding film 36.
- the light-shielding film 36 can be formed by, for example, a lift-off method.
- a new process of forming the light-shielding film 36 is required as compared with the first embodiment. However, by forming the light-shielding film 36 with a metal that can more easily shield ultraviolet light, Ultraviolet transmittance can be further reduced.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004568489A JP4343850B2 (ja) | 2003-02-20 | 2003-02-20 | 有機el素子及びその製造方法 |
PCT/JP2003/001892 WO2004075607A1 (ja) | 2003-02-20 | 2003-02-20 | 有機el素子及びその製造方法 |
EP03705373A EP1596637A4 (en) | 2003-02-20 | 2003-02-20 | ORGANIC ELECTROLUMINESCENT ELEMENT AND PROCESS FOR PRODUCING THE SAME |
US11/043,963 US7129637B2 (en) | 2003-02-20 | 2005-01-28 | Organic EL device including UV shielding layer and its manufacturing method |
US11/526,709 US8011987B2 (en) | 2003-02-20 | 2006-09-26 | Organic EL device and its manufacture method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2003/001892 WO2004075607A1 (ja) | 2003-02-20 | 2003-02-20 | 有機el素子及びその製造方法 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/043,963 Continuation US7129637B2 (en) | 2003-02-20 | 2005-01-28 | Organic EL device including UV shielding layer and its manufacturing method |
Publications (1)
Publication Number | Publication Date |
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WO2004075607A1 true WO2004075607A1 (ja) | 2004-09-02 |
Family
ID=32894247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2003/001892 WO2004075607A1 (ja) | 2003-02-20 | 2003-02-20 | 有機el素子及びその製造方法 |
Country Status (4)
Country | Link |
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US (2) | US7129637B2 (ja) |
EP (1) | EP1596637A4 (ja) |
JP (1) | JP4343850B2 (ja) |
WO (1) | WO2004075607A1 (ja) |
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US8148719B2 (en) | 2006-11-30 | 2012-04-03 | Samsung Mobile Display Co., Ltd. | Organic light emitting display device and fabricating method thereof |
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Also Published As
Publication number | Publication date |
---|---|
JP4343850B2 (ja) | 2009-10-14 |
US8011987B2 (en) | 2011-09-06 |
US20050162082A1 (en) | 2005-07-28 |
JPWO2004075607A1 (ja) | 2006-06-01 |
EP1596637A1 (en) | 2005-11-16 |
US20070031588A1 (en) | 2007-02-08 |
EP1596637A4 (en) | 2007-09-05 |
US7129637B2 (en) | 2006-10-31 |
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