WO2015043056A1 - Oled器件的封装结构 - Google Patents
Oled器件的封装结构 Download PDFInfo
- Publication number
- WO2015043056A1 WO2015043056A1 PCT/CN2013/088272 CN2013088272W WO2015043056A1 WO 2015043056 A1 WO2015043056 A1 WO 2015043056A1 CN 2013088272 W CN2013088272 W CN 2013088272W WO 2015043056 A1 WO2015043056 A1 WO 2015043056A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oled device
- lower substrate
- annular groove
- upper substrate
- sealing layer
- Prior art date
Links
- 238000005538 encapsulation Methods 0.000 title abstract description 5
- 239000000758 substrate Substances 0.000 claims abstract description 123
- 239000011521 glass Substances 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims description 45
- 238000004806 packaging method and process Methods 0.000 claims description 15
- -1 polyethylene Polymers 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004642 Polyimide Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229920002396 Polyurea Polymers 0.000 claims description 3
- 229910004205 SiNX Inorganic materials 0.000 claims description 3
- 229910020286 SiOxNy Inorganic materials 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 3
- 229910001634 calcium fluoride Inorganic materials 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 229910001635 magnesium fluoride Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920005575 poly(amic acid) Polymers 0.000 claims description 3
- 239000004584 polyacrylic acid Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 229920002050 silicone resin Polymers 0.000 claims description 3
- 229920006280 packaging film Polymers 0.000 claims 1
- 239000012785 packaging film Substances 0.000 claims 1
- 239000010408 film Substances 0.000 description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 9
- 239000001301 oxygen Substances 0.000 description 9
- 229910052760 oxygen Inorganic materials 0.000 description 9
- 230000000994 depressogenic effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000010409 thin film Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000087 laser glass Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination 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
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/842—Containers
- H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
-
- 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
Definitions
- Embodiments of the present invention relate to a package structure of an OLED device.
- BACKGROUND OF THE INVENTION Electroluminescent devices that undergo carrier injection and recombination result in luminescence.
- OLED devices have many advantages and have bright prospects in the display field.
- OLED devices are very sensitive to water vapor and oxygen. Water vapor and oxygen permeating into OLED devices are the main factors affecting the lifetime of OLED devices. Therefore, OLED devices are often packaged in a package structure to block oxygen and water vapor.
- Frit encapsulation is a package of OLED devices that is mainly used in the packaging of small and medium sized OLED devices.
- FIG. 1 is a schematic view showing the structure of an OLED device package structure using a laser glass package in the prior art.
- the laser glass package structure has an upper substrate 03 and a lower substrate 02 disposed opposite to each other.
- the periphery of the upper substrate 03 and the lower substrate 02 are sealed and supported by a glass retaining wall 04.
- the OLED device 01 is located on the upper substrate 03 and the lower substrate. 02 and the cavity 05 formed by the glass retaining wall 04, and the cavity 05 is filled with nitrogen.
- the glass retaining wall 04 is formed by the laser beam moving and heating the glass frit, and the glass retaining wall 04 has good barrier properties against moisture and oxygen, but the glass retaining wall 04 and the upper substrate 03 and the lower The adhesion between the substrates 02 may be insufficient, and the glass retaining wall 04 is easily broken when subjected to an external force, thereby causing oxygen and moisture outside the cavity 05 to penetrate into the OLED device, thereby reducing the service life of the OLED device.
- Embodiments of the present invention provide a package structure of an OLED device, and the package of the OLED device
- the package structure has high package stability and the OLED device has a long service life.
- An embodiment of the present invention provides a package structure of an OLED device, including an upper substrate and a lower substrate disposed opposite to each other, an OLED device, and a glass retaining wall sealing the periphery of the upper substrate and the lower substrate;
- the opposite surfaces of the substrate and the lower substrate are opposite to each other, the lower substrate has a recess toward the upper substrate, the OLED device is located in the recess;
- the upper substrate has an opening facing the lower substrate
- An annular groove the lower substrate has a second annular groove opposite to the first annular groove and opening toward the upper substrate, and an upper portion of the glass retaining wall is limited to the first annular groove, the glass
- the lower portion of the retaining wall is limited to the second annular groove.
- the OLED device is provided with a sealing layer on one side of the upper substrate, and the sealing layer is sealingly fitted with the periphery of the depressed portion of the lower substrate to seal the OLED device to the bottom of the depressed portion.
- the sealing layer further blocks oxygen and moisture, which in turn extends the life of the OLED device.
- the sidewall of the recess has a stepped structure
- the sidewall of the recess has a stepped surface parallel to the bottom surface of the recess
- the OLED device is disposed on the bottom surface of the recess
- the sealing layer A side facing the bottom surface of the recess is sealingly engaged with the step surface in the recess
- an upper surface of the sealing layer is flush with an upper surface of the lower substrate.
- the sealing layer is a sealing layer formed of at least one encapsulating film.
- the sealing layer comprises a plurality of organic thin films, or a plurality of inorganic thin films, or a plurality of alternately superposed organic thin films and inorganic thin films.
- the organic film is an organic film prepared from polyimide, polyurea, polyamic acid, polyacrylic acid, polyester, polyethylene, or polypropylene;
- the inorganic film is made of SiOx, SiNx, SiCxNy, SiOxNy
- the sealing layer is a sealing layer formed of a resin material.
- the sealing layer includes a dried layer and a filling layer between the dried layer and the upper substrate.
- the filling layer is a transparent filling layer formed of silicone oil, resin, or liquid crystal.
- the recess has two step faces, the dry layer sealingly mating with one of the step faces, and the fill layer sealingly mates with the other of the step faces.
- the cross section of the first annular groove has a shape of an arc, a triangle, a rectangle, or a trapezoid
- the cross section of the second annular groove has a shape of an arc, a triangle, a rectangle, or a trapezoid
- the upper substrate and the lower substrate are glass substrates.
- the package structure of the OLED device provided by the embodiment of the invention has high package stability, and the OLED device has a long service life.
- FIG. 1 is a schematic structural view of an OLED device package structure using a laser glass package in the prior art
- FIG. 2 is a schematic structural diagram of a package structure of an OLED device according to an embodiment of the present invention
- FIG. 3 is a schematic diagram of a matching structure of an upper substrate and a lower substrate in a package structure of an OLED device according to an embodiment of the present invention
- FIG. 4 is a schematic diagram of another matching structure of an upper substrate and a lower substrate in a package structure of an OLED device according to an embodiment of the present invention; a schematic structural view when a film is mounted; and a structural schematic view when filling a layer;
- FIG. 7 is a schematic structural view of a first annular groove and a second annular groove in a package structure of an OLED device according to an embodiment of the present invention.
- FIG. 8 is a schematic structural view of a first annular groove and a second annular groove in a package structure of an OLED device according to an embodiment of the present invention.
- FIG. 9 is a schematic structural view showing a structure in which a recessed portion of a lower substrate has two stepped surfaces in a package structure of an OLED device according to an embodiment of the present invention.
- FIG. 2 is a schematic structural diagram of a package structure of an OLED device according to an embodiment of the present invention
- FIG. 3 is a schematic diagram of a matching structure of an upper substrate and a lower substrate in a package structure of an OLED device according to an embodiment of the present invention
- the package structure of the organic electroluminescent device (OLED device) provided by the embodiment of the present invention, as shown in FIG. 2, includes the upper substrate 3 and the lower substrate 2, the OLED device 1, and the upper substrate 3 and the lower substrate 2 which are oppositely disposed.
- the perimeter of the glass is sealed by a glass retaining wall 4.
- the opposite faces of the upper substrate 3 and the lower substrate 2 abut.
- the lower substrate 2 has a recess 21 facing the upper substrate 3, the OLED device 1 is located in the recess 21; the upper substrate 3 has a first annular groove 31 opening toward the lower substrate 2, and the lower substrate 2 has a first annular groove 31
- the upper portion of the glass retaining wall 4 is limited to the first annular groove 31, and the lower portion of the glass retaining wall 4 is limited to the second annular groove 41.
- the upper substrate 3 and the lower substrate 2 are oppositely disposed, and the opposite faces of the upper substrate 3 and the lower substrate 2 are opposed, and the OLED device 1 is located at the lower substrate 2 with the opening facing the depressed portion of the upper substrate.
- the upper portion of the glass retaining wall 4 for sealing the periphery of the upper substrate 3 and the lower substrate 2 is located in the first annular groove 31 of the upper substrate 3, and the lower portion of the glass retaining wall 4 is located in the second annular groove 41 of the lower substrate 2.
- the contact area between the glass retaining wall 4 and the upper substrate 3 includes a groove bottom and a side wall of the first annular groove 31, and a contact area between the glass retaining wall 4 and the lower substrate 2 includes a groove bottom of the second annular groove 41 and a side wall, and since the two opposing surfaces of the upper substrate 3 and the lower substrate 2 are opposite to each other, and the first annular groove 31 and the second annular groove 41 are oppositely disposed, the glass retaining wall 4 is completely covered by the upper substrate 3 and the lower substrate 2 Therefore, the adhesion between the glass retaining wall 4 and the upper substrate 3 is large, and the adhesion between the glass retaining wall 4 and the lower substrate 2 is large. Further, since the glass retaining wall 4 is completely covered by the upper substrate 3 and the lower substrate 2, it is less likely to be damaged by an external force.
- the package structure of the OLED device provided by the present invention has high package stability, and the entire OLED device after packaging has a long service life.
- the sealing layer 5 is disposed on a side of the OLED device 1 facing the upper substrate 3 .
- the sealing layer 5 is sealingly fitted to the periphery of the depressed portion 21 of the lower substrate 2 to seal the OLED device 1 to the bottom of the depressed portion 21.
- Sealing layer 5 can further treat oxygen and water vapor Blocking is performed to reduce the influence of oxygen and moisture on the OLED device 1, thereby prolonging the service life of the OLED device 1.
- the sidewall of the recessed portion 21 of the lower substrate 2 has a stepped structure and is recessed.
- the side surface of the portion 21 has a step surface 211 parallel to the bottom surface of the recess portion 21, and the OLED device 1 is disposed on the bottom surface of the recess portion 21, and the sealing layer 5 faces the periphery of one surface of the bottom surface of the recess portion 21 and the step surface in the recess portion 21.
- the 211 is sealingly fitted, and the upper surface of the sealing layer 5 is flush with the upper surface of the lower substrate 2.
- the lower surface of the sealing layer 5 is sealingly fitted with the stepped surface 211 provided in the recessed portion 21, whereby the OLED device 1 can be sealed at the bottom of the depressed portion 21.
- the sealing layer 5 may be a sealing layer formed of at least one sealing film.
- the sealing layer 5 may be formed of a single encapsulating film or may be formed of a multilayer encapsulating film.
- the sealing layer 5 may include a plurality of layers of an organic film, or include a plurality of layers of an inorganic film, or an organic film and an inorganic film including a plurality of layers which are alternately stacked.
- the organic film may be an organic film prepared from polyimide, polyurea, polyamic acid, polyacrylic acid, polyester, polyethylene, or polypropylene;
- the inorganic film may be made of SiOx, SiNx, SiCxNy, SiOxNy
- the sealing layer 5 may also be a sealing layer formed of a resin material.
- the sealing layer 5 may further include a drying layer 52 and a filling layer 51 between the drying layer 52 and the upper substrate 3.
- the dry layer 52 is arranged to better prevent moisture from entering the OLED device.
- the filling layer 51 may be a transparent filling layer formed of silicone oil, resin, or liquid crystal.
- the transparent fill layer further blocks moisture and oxygen from entering the OLED device.
- the sidewall of the recessed portion 21 of the lower substrate 2 has two stepped surfaces, respectively a stepped surface 211 and a stepped surface 212, where the dry layer 52 and the stepped surface 211 are present.
- the filling layer 51 is in sealing engagement with the step surface 212.
- a seal is formed between the dry layer 52 and the step surface 211, and another seal is formed between the filling layer 52 and the step surface 212.
- the OLED device 1 and the lower substrate 2 A two-layer sealing structure is formed between the upper surfaces to further improve the sealing isolation effect of the sealing layer 5 on the OLED device 1.
- the sidewall of the recessed portion 21 of the lower substrate 2 may also have a plurality of stepped surfaces to form a row of multi-layer sealing structures, which may be specifically set according to actual packaging requirements.
- the shape of the cross section of the first annular groove 31 of the upper substrate 3 may be curved; or the shape of the cross section of the first annular groove 31 of the upper substrate 3 may also be Or a triangular shape; or, as shown in FIG. 7, the upper substrate 3 has a first annular groove 31 having a cross-sectional shape that is also rectangular; or, as shown in FIG. 8, the upper substrate 3 has a first annular groove.
- the shape of the cross section of 31 may also be trapezoidal.
- the shape of the cross section of the second annular groove 41 of the lower substrate 2 may be curved; or the shape of the cross section of the second annular groove 41 of the lower substrate 2 may also be Or a triangular shape; or, as shown in FIG. 7, the second annular groove 41 of the lower substrate 2 may have a rectangular cross-sectional shape; or, as shown in FIG. 8, the lower substrate 2 has a second annular groove.
- the shape of the cross section of 41 may also be trapezoidal.
- the upper substrate 3 has a cross-sectional shape of the first annular groove 31 and the lower substrate 2 described above.
- the shape of the cross section of the second annular groove 41 may be other options for the shape of the cross section of the second annular groove 41, which will not be exemplified herein.
- the upper substrate 3 and the lower substrate 2 provided in the above technical solution may be a glass substrate to improve the adhesion between the glass retaining wall 4 and the upper substrate 3 and the lower substrate 2.
- sealing layer 5 according to each embodiment of the present invention is transparent, so that it does not affect the light-emitting efficiency of the OLED device.
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/359,810 US9276233B2 (en) | 2013-09-24 | 2013-12-02 | Encapsulating structure of OLED device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310439395.0 | 2013-09-24 | ||
CN201310439395.0A CN103490016B (zh) | 2013-09-24 | 2013-09-24 | 一种oled器件的封装结构 |
Publications (1)
Publication Number | Publication Date |
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WO2015043056A1 true WO2015043056A1 (zh) | 2015-04-02 |
Family
ID=49830095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2013/088272 WO2015043056A1 (zh) | 2013-09-24 | 2013-12-02 | Oled器件的封装结构 |
Country Status (3)
Country | Link |
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US (1) | US9276233B2 (zh) |
CN (1) | CN103490016B (zh) |
WO (1) | WO2015043056A1 (zh) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
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CN203983341U (zh) | 2014-07-31 | 2014-12-03 | 京东方科技集团股份有限公司 | 电致发光器件及显示装置 |
CN105762298B (zh) * | 2014-12-17 | 2018-07-06 | 昆山工研院新型平板显示技术中心有限公司 | 有机发光二极管封装结构、有机发光显示屏及其制造方法 |
CN104801463B (zh) * | 2015-05-05 | 2017-05-31 | 深圳市华星光电技术有限公司 | 点胶装置及点胶方法 |
CN105185810A (zh) * | 2015-08-07 | 2015-12-23 | 京东方科技集团股份有限公司 | 一种显示基板及其制备方法、显示面板和显示装置 |
US10361361B2 (en) * | 2016-04-08 | 2019-07-23 | International Business Machines Corporation | Thin reference layer for STT MRAM |
CN108539028B (zh) * | 2017-03-01 | 2020-07-21 | Tcl科技集团股份有限公司 | 一种量子点发光二极管器件及其制备方法 |
CN106953029B (zh) * | 2017-03-22 | 2019-08-02 | 京东方科技集团股份有限公司 | 一种薄膜封装方法及封装薄膜、喷墨打印设备 |
CN107565050A (zh) * | 2017-08-25 | 2018-01-09 | 京东方科技集团股份有限公司 | 有机发光二极管封装结构、电子装置及封装方法 |
CN108183178A (zh) * | 2017-12-28 | 2018-06-19 | 深圳市华星光电技术有限公司 | Oled显示面板及其制作方法 |
US20190207152A1 (en) * | 2018-01-03 | 2019-07-04 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Oled panel and method for fabricating the same |
CN108832018A (zh) * | 2018-06-21 | 2018-11-16 | 北京蜃景光电科技有限公司 | 一种具有增强密封效果的有机发光器件、显示屏和显示器 |
CN109300939B (zh) * | 2018-08-30 | 2022-02-01 | 云谷(固安)科技有限公司 | 柔性显示面板及其制备方法、显示装置 |
WO2020062149A1 (zh) * | 2018-09-29 | 2020-04-02 | 天津大学 | 一种柔性封装结构及其制造方法 |
CN109301086B (zh) * | 2018-09-30 | 2021-08-31 | 京东方科技集团股份有限公司 | 一种显示基板及其制作方法、显示装置 |
CN113140166B (zh) * | 2021-05-13 | 2022-10-18 | 业成科技(成都)有限公司 | 穿戴式装置 |
CN114864517B (zh) * | 2022-04-21 | 2022-12-09 | 中山市木林森微电子有限公司 | 一种用于半导体器件的封装结构 |
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CN1622700A (zh) * | 2003-11-29 | 2005-06-01 | 三星Sdi株式会社 | 有机电致发光器件 |
JP2011165497A (ja) * | 2010-02-10 | 2011-08-25 | Panasonic Electric Works Co Ltd | 発光装置 |
CN203481280U (zh) * | 2013-09-24 | 2014-03-12 | 京东方科技集团股份有限公司 | 一种oled器件的封装结构 |
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JP2002359071A (ja) * | 2001-04-20 | 2002-12-13 | Lg Phillips Lcd Co Ltd | 有機発光素子 |
US20040189195A1 (en) * | 2003-03-24 | 2004-09-30 | Osram Opto Semiconductors Gmbh | Devices including, methods using, and compositions of reflowable getters |
KR100707157B1 (ko) * | 2003-12-27 | 2007-04-13 | 삼성에스디아이 주식회사 | 유기발광소자 및 그 제조방법 |
KR100712177B1 (ko) * | 2006-01-25 | 2007-04-27 | 삼성에스디아이 주식회사 | 유기전계발광표시장치 및 그 제조방법 |
FR2981059A1 (fr) * | 2011-10-11 | 2013-04-12 | Commissariat Energie Atomique | Procede d'encapsulation de micro-dispositif par report de capot et depot de getter a travers le capot |
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2013
- 2013-09-24 CN CN201310439395.0A patent/CN103490016B/zh active Active
- 2013-12-02 US US14/359,810 patent/US9276233B2/en active Active
- 2013-12-02 WO PCT/CN2013/088272 patent/WO2015043056A1/zh active Application Filing
Patent Citations (3)
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CN1622700A (zh) * | 2003-11-29 | 2005-06-01 | 三星Sdi株式会社 | 有机电致发光器件 |
JP2011165497A (ja) * | 2010-02-10 | 2011-08-25 | Panasonic Electric Works Co Ltd | 発光装置 |
CN203481280U (zh) * | 2013-09-24 | 2014-03-12 | 京东方科技集团股份有限公司 | 一种oled器件的封装结构 |
Also Published As
Publication number | Publication date |
---|---|
CN103490016B (zh) | 2016-10-05 |
US20150221889A1 (en) | 2015-08-06 |
US9276233B2 (en) | 2016-03-01 |
CN103490016A (zh) | 2014-01-01 |
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