CA2452323A1 - Transparent support for organic light emitting device - Google Patents
Transparent support for organic light emitting device Download PDFInfo
- Publication number
- CA2452323A1 CA2452323A1 CA002452323A CA2452323A CA2452323A1 CA 2452323 A1 CA2452323 A1 CA 2452323A1 CA 002452323 A CA002452323 A CA 002452323A CA 2452323 A CA2452323 A CA 2452323A CA 2452323 A1 CA2452323 A1 CA 2452323A1
- Authority
- CA
- Canada
- Prior art keywords
- coating
- coating layers
- substrate
- water vapor
- oxygen
- 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.)
- Granted
Links
- 239000000758 substrate Substances 0.000 claims abstract 30
- 239000002131 composite material Substances 0.000 claims abstract 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract 15
- 229910052760 oxygen Inorganic materials 0.000 claims abstract 14
- 239000001301 oxygen Substances 0.000 claims abstract 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 14
- 229920000620 organic polymer Polymers 0.000 claims abstract 6
- 239000000463 material Substances 0.000 claims abstract 4
- 239000011247 coating layer Substances 0.000 claims 36
- 239000010410 layer Substances 0.000 claims 14
- 238000000576 coating method Methods 0.000 claims 13
- 239000011248 coating agent Substances 0.000 claims 9
- 238000000034 method Methods 0.000 claims 9
- 239000012790 adhesive layer Substances 0.000 claims 7
- 230000005540 biological transmission Effects 0.000 claims 5
- 229920006254 polymer film Polymers 0.000 claims 5
- 238000004519 manufacturing process Methods 0.000 claims 4
- 230000007547 defect Effects 0.000 claims 3
- 230000008021 deposition Effects 0.000 claims 3
- 239000000428 dust Substances 0.000 claims 3
- 239000011859 microparticle Substances 0.000 claims 3
- 229920000642 polymer Polymers 0.000 claims 3
- 230000004888 barrier function Effects 0.000 claims 2
- 230000001681 protective effect Effects 0.000 claims 2
- 230000035699 permeability Effects 0.000 claims 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
- H10K77/10—Substrates, e.g. flexible substrates
- H10K77/111—Flexible substrates
-
- 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
- H10K59/87—Passivation; Containers; Encapsulations
- H10K59/873—Encapsulations
- H10K59/8731—Encapsulations multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Electroluminescent Light Sources (AREA)
- Laminated Bodies (AREA)
Abstract
An improved transparent support substrate in an organic light emitting diode (OLED) device comprises an organic polymer support film and a composite laye r on the support film which is disposed intermediate the support film and the diodes of the OLED; the composite layer has first and second discrete coatin g layers bonded together in opposed facing relationship; the layers are of material impermeable to oxygen and water vapor but contain inadvertent discontinuities which result in discontinuity-controlled permeation of oxyge n and water vapor.
Claims (26)
1. A transparent support substrate for an organic light emitting device comprising:
i) an organic polymer support film, and ii) a composite layer on said support film, said composite layer being adapted to be disposed between said support film and light emitting organic diodes of an organic light emitting device, said composite layer comprising first and second discrete coating layers bonded together in opposed facing relationship, each of said first and second coating layers being impermeable to oxygen and water vapor when formed as a continuous coating, each of said first and second coating layers having inadvertent discontinuities therein such that said coating layers exhibit discontinuity-controlled permeation of oxygen and water vapor therethrough, said first and second coating layers being bonded together with an adhesive layer such that said coating layers are spaced apart by a distance less than the dimensions of the inadvertent discontinuities in said coating layers, said inadvertent discontinuities being selected from:
a) submicrometer-size pinholes characteristic of coating layer deposition and micro-roughness of said polymer support film;
b) submicrometer to multimicrometer-size defects due to dust and microparticles; and c) cracks and scratches created in production, handling and converting of said substrate.
i) an organic polymer support film, and ii) a composite layer on said support film, said composite layer being adapted to be disposed between said support film and light emitting organic diodes of an organic light emitting device, said composite layer comprising first and second discrete coating layers bonded together in opposed facing relationship, each of said first and second coating layers being impermeable to oxygen and water vapor when formed as a continuous coating, each of said first and second coating layers having inadvertent discontinuities therein such that said coating layers exhibit discontinuity-controlled permeation of oxygen and water vapor therethrough, said first and second coating layers being bonded together with an adhesive layer such that said coating layers are spaced apart by a distance less than the dimensions of the inadvertent discontinuities in said coating layers, said inadvertent discontinuities being selected from:
a) submicrometer-size pinholes characteristic of coating layer deposition and micro-roughness of said polymer support film;
b) submicrometer to multimicrometer-size defects due to dust and microparticles; and c) cracks and scratches created in production, handling and converting of said substrate.
2. A substrate according to 1 wherein each of said discrete coating layers is a single coating.
3. A substrate according to claim 1. where at least one of said first and second discrete coating layers is composed of a plurality of discrete single coatings of different materials.
4. A substrate according to claim 1, 2 or 3, having a transparency greater than 65%, by ASTMD171746-97.
5. A, Substrate according to claim 4. wherein said transparency is greater than 85%.
6. A substrate according to claim 1, 2, 3, 4 or 5, wherein said transparent substrate comprises first and second organic polymer support films in opposed facing relationship with said composite layer sandwiched therebetween.
7. A substrate according to claim 1, 2, 3, 4, 5 or 6, wherein said composite layer has an oxygen transmission rate by ASTM F1927 and D3985 lower than 0.1 cm3/(m2day-atm).
8. A substrate according to claim 7, wherein said oxygen transmission rate is lower than 0.005 cm3/(m2day.atm).
9. A substrate according to any one of claims 1 to 8, wherein said composite layer has a water vapor transmission rate lower than 0.01 g/(m2day) by ASTM F1249.
10. A substrate according to any one of claims 1 to 9, wherein said transparent substrate has a thickness of 5 µm to 10 mm and said first and second coating layers each have a thickness of 100µm.
11. A substrate according to any one of claim 1 to 10, wherein said adhesive layer displays low permeability to oxygen and water vapor.
12. A substrate according to claim 11, wherein said inadvertent discontinuities in said first and second coatings occur randomly such that on a statistical probability basis discontinuities in said first coating layer are remote from, and in non-opposed relationship, with discoatinaities in said second coating layer.
13.In an organic light emitting device in which light emitting diodes are encased in a barrier envelope comprising a transparent substrate supporting said diodes and a barrier covering, said substrate and covering being impermeable to oxygen and water vapor, the improvement wherein at least one of said substrate and said covering comprises:
a transparent support substrate as defined its any one of claims 1 to 12.
a transparent support substrate as defined its any one of claims 1 to 12.
14. A device according to claim 13 wherein both said substrate and said covering are formed from said film and said composite layer.
15. A device according to claim 13 wherein said substrate is formed of said film and said composite layer.
16. A device according to claim 13 wherein said covering is formed of said film and said composite layer.
17. In a method of manufacturing an organic light emitting device in which light emitting organic diodes are formed on a transparent substrate impermeable to oxygen and water vapor, the wherein the transparent substrate comprises:
i) an organic polymer support film, and ii) a composite layer on said support film and disposed intermediate said support film and said light emitting diodes, said composite layer comprising first and second discrete coating layers bonded together in opposed facing relationship, each of said first and second coating layers being impermeable to oxygen and water vapor when formed as a continuous coating, each of said first and second coating layers having inadvenent discontinuites therein such that said coating layers exhibit discontinuity-controlled permeation of oxygen and water vapor therethrough, said first and second coating layers being handed together with an adhesive layer such that said coating layers are spaced apart by a distance less than the dimensions of the inadvertent discontinuities in said coating layers, said inadvertent discontinuities being selected from:
a) submicrometer-size pinholes characteristic of coating layer deposition and micro-roughness of said polymer support film;
b) submicrometer to multimicrometer-size defects due to dust and microparticles; and c) cracks and scratches created in production, handling and converting of said substrate.
i) an organic polymer support film, and ii) a composite layer on said support film and disposed intermediate said support film and said light emitting diodes, said composite layer comprising first and second discrete coating layers bonded together in opposed facing relationship, each of said first and second coating layers being impermeable to oxygen and water vapor when formed as a continuous coating, each of said first and second coating layers having inadvenent discontinuites therein such that said coating layers exhibit discontinuity-controlled permeation of oxygen and water vapor therethrough, said first and second coating layers being handed together with an adhesive layer such that said coating layers are spaced apart by a distance less than the dimensions of the inadvertent discontinuities in said coating layers, said inadvertent discontinuities being selected from:
a) submicrometer-size pinholes characteristic of coating layer deposition and micro-roughness of said polymer support film;
b) submicrometer to multimicrometer-size defects due to dust and microparticles; and c) cracks and scratches created in production, handling and converting of said substrate.
18. A method according to claim 17 wherein each of said discrete coating layers is a single coating.
19. A method according to claim 17 where at least one of said first and second discrete coating layers is composed of a plurality of discrete single coatings of different materials.
20. A method of producing a transparent support substrate for an organic light emitting device comprising:
a) coating a first transparent organic polymer film surface with a first coating layer;
b) coating a second transparent organic polymer film surface with a second coating layer;
c) bonding said coating layers together, with an adhesive layer, in opposed facing relationship to form a composite layer between said first and second polymer film surfaces, each of said first and second coating layers being impermeable to oxygen and water vapor when formed as a continuous coating; each of said first and second coating layers having inadvertent discontinuities therein such that said composite layer exhibits discontinuity-controlled permeation of oxygen and water vapor therethrough, said bonding with said adhesive layer being such that said first and second coating layers are spaced apart by a distance less than the dimensions of the inadvertent discontinuities in said coating layers, said inadvertent discontinuities being selected from:
i) submicrometer-size pinholes characteristic of coating layer deposition and micro-roughness of said polymer support film;
ii) submicrometer to multimicrometer-size defects due to dust and microparticles; and iii) cracks and scratches created in production, handling and converting of said substrate.
a) coating a first transparent organic polymer film surface with a first coating layer;
b) coating a second transparent organic polymer film surface with a second coating layer;
c) bonding said coating layers together, with an adhesive layer, in opposed facing relationship to form a composite layer between said first and second polymer film surfaces, each of said first and second coating layers being impermeable to oxygen and water vapor when formed as a continuous coating; each of said first and second coating layers having inadvertent discontinuities therein such that said composite layer exhibits discontinuity-controlled permeation of oxygen and water vapor therethrough, said bonding with said adhesive layer being such that said first and second coating layers are spaced apart by a distance less than the dimensions of the inadvertent discontinuities in said coating layers, said inadvertent discontinuities being selected from:
i) submicrometer-size pinholes characteristic of coating layer deposition and micro-roughness of said polymer support film;
ii) submicrometer to multimicrometer-size defects due to dust and microparticles; and iii) cracks and scratches created in production, handling and converting of said substrate.
21. A method according to claim 20 wherein each of said discrete coating layers is a single coating.
22. A method according to claim 20 where at least one of said first and second discrete coating layers is composed of a plurality of discrete single coatings of different materials.
23. A method according to claim 21, wherein said transparent support substrate has an oxygen transmission rate by ASTM F1927 and D3985 lower than 0.005 cm3/(m2day-atm); and wherein said composite layer has a water vapor transmission rate lower than 0.01g/(m2day) by ASTM F1249.
24. A method according to claim 20 or 23, wherein said transparent substrate has a thickness of 5 µm to 10 mm and said first and second coating layers each have a thickness of 100 nm to 2µm; and wherein said adhesive layer is impermeable to oxygen and water vapor.
25. A method according to claim 20, wherein said first polymer film surface is defined in a first polymer film, and said first polymer film comprises first and second support films bonded in opposed facing relationship with a release adhesive layer, and step a) comprises coating a surface of said second support film with said first coating layer, and including a final step of:
d) separating said first support film from said second support film.
d) separating said first support film from said second support film.
26. A method according to claim 20 wherein said firts polymer film surface functions as a temporary protective film on the side of support substrate on which diodes are to be placed and including a step of (d) separating said temporary protective film from said firts coating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2452323A CA2452323C (en) | 2001-07-06 | 2002-05-14 | Transparent support for organic light emitting device |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2,352,567 | 2001-07-06 | ||
| CA002352567A CA2352567A1 (en) | 2001-07-06 | 2001-07-06 | Translucent material displaying ultra-low transport of gases and vapors, and method for its production |
| PCT/CA2002/000707 WO2003005461A1 (en) | 2001-07-06 | 2002-05-14 | Transparent support for organic light emitting device |
| CA2452323A CA2452323C (en) | 2001-07-06 | 2002-05-14 | Transparent support for organic light emitting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2452323A1 true CA2452323A1 (en) | 2003-01-16 |
| CA2452323C CA2452323C (en) | 2011-07-26 |
Family
ID=31994835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2452323A Expired - Fee Related CA2452323C (en) | 2001-07-06 | 2002-05-14 | Transparent support for organic light emitting device |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2452323C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113126441A (en) * | 2021-03-29 | 2021-07-16 | 上海华力集成电路制造有限公司 | Optimization method for improving photoetching defects caused by water adsorption of photoetching front-layer film |
-
2002
- 2002-05-14 CA CA2452323A patent/CA2452323C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113126441A (en) * | 2021-03-29 | 2021-07-16 | 上海华力集成电路制造有限公司 | Optimization method for improving photoetching defects caused by water adsorption of photoetching front-layer film |
| CN113126441B (en) * | 2021-03-29 | 2024-06-07 | 上海华力集成电路制造有限公司 | Optimization method for improving photoetching defect caused by water adsorption of photoetching front layer film |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2452323C (en) | 2011-07-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20200831 |