WO2005046292A1 - バリア薄膜、及びバリア薄膜を用いた有機el素子 - Google Patents
バリア薄膜、及びバリア薄膜を用いた有機el素子 Download PDFInfo
- Publication number
- WO2005046292A1 WO2005046292A1 PCT/JP2004/016561 JP2004016561W WO2005046292A1 WO 2005046292 A1 WO2005046292 A1 WO 2005046292A1 JP 2004016561 W JP2004016561 W JP 2004016561W WO 2005046292 A1 WO2005046292 A1 WO 2005046292A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- thin film
- barrier thin
- organic
- film
- barrier
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/02—Details
- H05B33/04—Sealing arrangements, e.g. against humidity
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional [2D] radiating surfaces
- H05B33/14—Light sources with substantially two-dimensional [2D] radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2101/00—Properties of the organic materials covered by group H10K85/00
- H10K2101/80—Composition varying spatially, e.g. having a spatial gradient
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/63—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by the formation processes
- H10P14/6326—Deposition processes
- H10P14/6328—Deposition from the gas or vapour phase
- H10P14/6334—Deposition from the gas or vapour phase using decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H10P14/6336—Deposition from the gas or vapour phase using decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition in the presence of a plasma [PECVD]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/69—Inorganic materials
- H10P14/6902—Inorganic materials composed of carbon, e.g. alpha-C, diamond or hydrogen doped carbon
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/69—Inorganic materials
- H10P14/694—Inorganic materials composed of nitrides
- H10P14/6943—Inorganic materials composed of nitrides containing silicon
- H10P14/69433—Inorganic materials composed of nitrides containing silicon the material being a silicon nitride not containing oxygen, e.g. SixNy or SixByNz
Definitions
- the present invention relates to a barrier thin film used to prevent the permeation of moisture and oxygen from the outside, and an organic EL device using the same.
- Elect-aperture luminescent elements are also referred to as electroluminescent elements.
- inorganic EL elements using an inorganic material as a fluorescent material and organic EL elements using an organic material are used.
- the organic EL element has a structure in which a thin film mainly composed of a fluorescent organic compound is sandwiched between an anode and a cathode, and electrons and holes are injected into this thin film and recombined to form excitons (exington).
- This is a light-emitting element that emits light by utilizing light emission (fluorescence and phosphorescence) when it is deactivated.
- This organic EL device has excellent features such as high contrast, high speed response, high brightness, and a wide viewing angle, and can be used in various fields.
- Patent Document 1 a barrier thin film for preventing the transmission of moisture and oxygen from the outside has been used.
- Patent document 1 Japanese Patent Application Laid-Open No. 2003-109753
- the present invention has been made in such a situation, and is a barrier thin film used for preventing permeation of moisture or oxygen as an external force, for example, used in an organic EL device.
- One of the problems is to provide a barrier thin film that has excellent barrier properties without pinholes and the like, has low stress, and does not damage an object to be barrier.
- the barrier thin film according to claim 1 is a Noria thin film for preventing permeation of moisture or oxygen from the outside, and the Noria thin film has one surface force. It is characterized in that the properties are continuously changed toward the other surface.
- an organic EL device is characterized by using the Noria thin film according to any one of claims 1 to 3.
- FIG. 1 is an overall configuration diagram showing an organic EL device using the Noria thin film of the present application.
- FIG. 1 is an overall configuration diagram showing an organic EL device 10 using the Noria thin film of the present application.
- the organic EL device 10 includes a transparent substrate 11, an anode electrode 12 formed on the transparent substrate 11, and an organic light emitting layer 13 formed on the anode electrode 12. And a cathode electrode 14 formed on the organic light emitting layer 13.
- the Noria thin film 15 of the present invention is formed on the uppermost layer side of the laminated structure so as to cover the entire device.
- the transparent substrate 11 in the present application is not particularly limited, and may be, for example, a film substrate or a glass substrate. It may be arbitrarily selected depending on the situation in which the organic EL device is used and the required performance.
- the barrier thin film 15 of the present application is characterized in that its properties are continuously changed from one surface to the other surface.
- the properties are not uniform, and the properties are continuously changed from one surface to the other surface (that is, in the thickness direction) while being a single thin film. This makes it possible for the front and back surfaces of the thin film to play two different roles, and at the same time, since the Noria thin film of the present application is a single thin film, a plurality of layers having different properties are laminated. It is easier to manufacture and costs can be reduced as compared to thin films composed of different components.
- the barrier thin film of the present application is a single thin film, but has a great feature in that different effects can be exerted on the front surface and the back surface.
- Each specific property may be set arbitrarily according to the situation in which the barrier thin film is used and the required performance.
- the property is changed from a hardness of low hardness to a high hardness, more specifically, the organic light emitting layer 13 and the cathode.
- the surface in contact with the electrode 14 (hereinafter, this surface may be simply referred to as “back surface”) has low hardness, and the surface in contact with the outside world (hereinafter, this surface may be simply referred to as “front surface”). )
- back surface has low hardness
- front surface the surface in contact with the outside world
- the organic light emitting layer 13 is thin and soft, and is very susceptible to scratching itself.However, by forming the surface of the side in direct contact with the organic light emitting layer 13 and the like, that is, the back surface of the barrier thin film 15 with low hardness. In addition, it is possible to prevent the organic light emitting layer 13 from being damaged. In addition, low hardness means softness, and even if the film changes to a film having high hardness and high barrier properties, it has a function of relieving stress at the soft part, and as a result, the noria thin film 15 Peeling can be prevented.
- the main purpose of the barrier thin film of the present invention used in the organic EL element 10 is to prevent external moisture and oxygen from entering the organic light emitting layer 13 and the like.
- 15 Back surface force By continuously increasing the hardness toward the surface in contact with the outside world (hereinafter, this surface may be simply referred to as the “front surface”), the outside force such as the organic light emitting layer 13 or the like is applied to the organic light emitting layer 13 or the like. Ingress can be prevented, and as a result, deterioration can be prevented.
- the barrier thin film is provided with flexibility and relatively soft properties on the back side, while the barrier thin film is provided with a barrier
- a relatively hard and durable property for example, a thin film A having flexibility and a relatively soft property and a relatively hard and rich barrier property!
- the barrier thin film of the present invention has no boundary in the film (that is, it is a single layer as a whole) and its properties are only continuously changed, so that there is no problem of peeling. . Further, there is no need to change the film forming material significantly, so that the cost can be reduced.
- the method of continuously changing the hardness of the barrier thin film to a low hardness and a high hardness as described above may employ any method without particular limitation. it can.
- the barrier thin film of the present application is composed of an inorganic substance (or inorganic oxide) as a main component, contains carbon and Z or hydrogen therein, and adjusts the content thereof to obtain a hardness of the barrier thin film.
- the noria thin film has inorganic properties. So it can be a hard and durable thin film.
- the barrier thin film when the content of carbon, Z, or hydrogen is high (when the content of carbon, Z, or hydrogen is high), the barrier thin film has an organic property and can be a flexible and soft thin film.
- the Noria thin film of the present invention can be manufactured by using a diamond-like carbon (hereinafter, referred to as “DLC”) as a material and by a plasma CVD method. (That is, the main component of the barrier thin film is DLC.)
- DLC diamond-like carbon
- the RF power applied to the substrate is continuously increased, so that the back surface of the barrier thin film is a soft film like a polymer, and the outside is a soft film.
- a diamond-like hard film having a high noria property can be obtained. More specifically, the thin film using DLC becomes a diamond-like hard film with high noria as the internal stress increases, so the RF power is continuously increased, and the internal stress distribution of this DLC film is improved.
- the back surface force is also controlled so as to increase toward the front surface.
- the applied RF power increases.By increasing the RF power applied during the film formation, the internal stress on the back side of the barrier thin film is reduced, and the , The internal stress can be increased. Further, in order to further improve the gas nolia characteristics of the DLC film, the applied RF power may be constant at the final stage of forming the DLC film.
- the internal stress distribution of the barrier thin film formed by DLC can be continuously changed.
- the adhesion of the DLC film is improved, the hardness V is high, the barrier property is high, and the stress of the film can be softened on the back side by the film, so that peeling of the film can be prevented.
- the DLC film contains hydrogen atoms and has a spacious atomic arrangement, so that it can be elastically deformed.
- HMDS ((1, 1, 1, 3, 3, 3—Hexamethyldisilazene)) and N (nitrogen) or NH ( ⁇
- the barrier thin film of the present invention can be manufactured by a plasma CVD method in the same manner as described above.
- the main component of the barrier thin film produced by this method is SiN (silicon nitride).
- the film formed by decomposition of HMDS in addition to the constituent elements Si and N is formed in the film. Will be included.
- the CZSi ratio in the film decreases and the NZSi ratio increases accordingly, so that this method continuously changes from low hardness to high hardness. Film can be produced.
- HMDS hexamethyldisilazane
- a film formed at a lower temperature has a lower film density, so that a flexible and soft film can be formed. Therefore, by manufacturing the barrier thin film while gradually increasing the temperature, the barrier film can be made harder as the rear surface becomes softer and the surface becomes closer.
- 1MOS using HMDS may be used instead of TMOS (tetramethoxysilane) and O (oxygen).
- the main component of the thin film of the present invention is SiO (silicon oxide).
- a TMOS As a method for continuously changing the components of the barrier thin film, a TMOS
- the manufacturing process can be simplified.
- the barrier thin film of the present application has a plurality of properties
- its shape is a Noria thin film having a single-layer force. Can be manufactured in one chamber. (Generally, when thin films having different properties are produced, a plurality of chambers are required, which complicates the manufacturing process, thereby greatly increasing the cost.)
- the back side is a film having a high flexibility and a soft property.
- the organic light-emitting layer and the like are not damaged and the flexibility of the organic EL element is not hindered.
- the front side is a film having a high barrier property and a hard property unlike the rear side, it is possible to prevent the permeation of moisture and oxygen. For example, the light emitting performance and life of the organic EL element can be reliably extended, and the reliability can be improved.
- the barrier thin films have such different properties, their properties are continuously changing, and the thin film itself is composed of a single layer.
- the thin film is more resistant to external impact and does not peel off.
- it since it is composed of a single layer, it can be manufactured in one chamber, so that the manufacturing process can be simplified and the manufacturing cost can be reduced.
- the Noria thin film of the present application is not limited to the above embodiment.
- the barrier thin film for protecting the organic EL element has been exemplified.
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Electroluminescent Light Sources (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005515343A JPWO2005046292A1 (ja) | 2003-11-11 | 2004-11-09 | バリア薄膜、及びバリア薄膜を用いた有機el素子 |
| US10/579,060 US20070085477A1 (en) | 2003-11-11 | 2004-11-09 | Barrier thin film, and organic el element using the barrier thin film |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003-381403 | 2003-11-11 | ||
| JP2003381403 | 2003-11-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005046292A1 true WO2005046292A1 (ja) | 2005-05-19 |
Family
ID=34567276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/016561 Ceased WO2005046292A1 (ja) | 2003-11-11 | 2004-11-09 | バリア薄膜、及びバリア薄膜を用いた有機el素子 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20070085477A1 (ja) |
| JP (1) | JPWO2005046292A1 (ja) |
| KR (1) | KR20060109896A (ja) |
| CN (1) | CN1879452A (ja) |
| TW (1) | TW200520602A (ja) |
| WO (1) | WO2005046292A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009252739A (ja) * | 2008-04-10 | 2009-10-29 | Samsung Electronics Co Ltd | 傾斜組成封止薄膜およびその製造方法 |
| JP2017053020A (ja) * | 2015-09-11 | 2017-03-16 | 株式会社島津製作所 | 透明耐傷性膜及びその製造方法 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI307611B (en) * | 2006-06-05 | 2009-03-11 | Au Optronics Corp | Organic electroluminescence device and organic electroluminescence panel using the same |
| JP4963419B2 (ja) * | 2007-01-31 | 2012-06-27 | キヤノン株式会社 | フレキシブル表示装置 |
| WO2020208774A1 (ja) * | 2019-04-11 | 2020-10-15 | シャープ株式会社 | 発光素子および表示装置 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001326070A (ja) * | 2000-05-15 | 2001-11-22 | Denso Corp | 有機el素子 |
| JP2003109753A (ja) * | 2001-09-28 | 2003-04-11 | Mitsumi Electric Co Ltd | エレクトロルミネッセンス素子の製造方法 |
| JP2004022396A (ja) * | 2002-06-18 | 2004-01-22 | Ulvac Japan Ltd | 有機エレクトロルミネッセンス素子及びその製造方法 |
| JP2004127608A (ja) * | 2002-09-30 | 2004-04-22 | Seiko Epson Corp | 電気光学装置の製造方法及び電子機器 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5447887A (en) * | 1994-04-01 | 1995-09-05 | Motorola, Inc. | Method for capping copper in semiconductor devices |
-
2004
- 2004-11-09 CN CNA2004800331333A patent/CN1879452A/zh active Pending
- 2004-11-09 US US10/579,060 patent/US20070085477A1/en not_active Abandoned
- 2004-11-09 KR KR1020067009014A patent/KR20060109896A/ko not_active Withdrawn
- 2004-11-09 JP JP2005515343A patent/JPWO2005046292A1/ja active Pending
- 2004-11-09 WO PCT/JP2004/016561 patent/WO2005046292A1/ja not_active Ceased
- 2004-11-11 TW TW093134396A patent/TW200520602A/zh unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001326070A (ja) * | 2000-05-15 | 2001-11-22 | Denso Corp | 有機el素子 |
| JP2003109753A (ja) * | 2001-09-28 | 2003-04-11 | Mitsumi Electric Co Ltd | エレクトロルミネッセンス素子の製造方法 |
| JP2004022396A (ja) * | 2002-06-18 | 2004-01-22 | Ulvac Japan Ltd | 有機エレクトロルミネッセンス素子及びその製造方法 |
| JP2004127608A (ja) * | 2002-09-30 | 2004-04-22 | Seiko Epson Corp | 電気光学装置の製造方法及び電子機器 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009252739A (ja) * | 2008-04-10 | 2009-10-29 | Samsung Electronics Co Ltd | 傾斜組成封止薄膜およびその製造方法 |
| JP2017053020A (ja) * | 2015-09-11 | 2017-03-16 | 株式会社島津製作所 | 透明耐傷性膜及びその製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200520602A (en) | 2005-06-16 |
| KR20060109896A (ko) | 2006-10-23 |
| US20070085477A1 (en) | 2007-04-19 |
| CN1879452A (zh) | 2006-12-13 |
| JPWO2005046292A1 (ja) | 2007-05-24 |
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