WO2012055221A1 - Multifunctional reflecting and shielding film for liquid crystal backlight module - Google Patents
Multifunctional reflecting and shielding film for liquid crystal backlight module Download PDFInfo
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- WO2012055221A1 WO2012055221A1 PCT/CN2011/073239 CN2011073239W WO2012055221A1 WO 2012055221 A1 WO2012055221 A1 WO 2012055221A1 CN 2011073239 W CN2011073239 W CN 2011073239W WO 2012055221 A1 WO2012055221 A1 WO 2012055221A1
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- backlight module
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- reflective layer
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
Definitions
- the utility model relates to a fixing frame for a liquid crystal television backlight module, a reflecting, shielding and heat dissipating multifunctional component.
- the Chinese patent CN1825187A discloses a reflective sheet of a backlight module, the reflective sheet comprising a reflective layer and a conductive layer, the conductive layer being disposed on one side of the reflective layer, and connecting the conductive layer to the ground of the backlight module.
- the present invention is applied to a side-type backlight module or a direct-lit backlight module. Grounding through the conductive layer prevents electromagnetic interference and electrostatic discharge from affecting the normal operation of the backlight module components.
- Chinese Patent No. CN201568896U discloses a structure of a reflective sheet structure and a backlight module of a backlight module.
- the reflective sheet structure of the backlight module comprises a plastic back sheet and a reflective sheet adhered to one side of the plastic back sheet.
- the plastic backing plate is selected from the group consisting of a polyethylene backing plate, a polyethylene terephthalate backing plate, a polypropylene backing plate, a polystyrene backing plate, and a polyvinyl chloride backing plate. They are all high molecular polymers and their heat dissipation performance is poor.
- the purpose of the utility model is to overcome the defects of the prior art mentioned above, and to provide a multifunctional component for a liquid crystal television backlight module which integrates reflection, shielding, fixing frame and heat dissipation function.
- the multifunctional module of the backlight module of the utility model has a reflective layer, an adhesive layer and a metal layer, and the reflective layer and the metal layer are integrated by an adhesive layer, and the cross sections of the reflective layer, the adhesive layer and the metal layer are all "Concave" type.
- the reflective layer is used for providing a backlight reflection function, an adhesive layer, and a heat conduction function for bonding the reflective layer and the metal layer into one body, and the metal layer has the functions of electromagnetic shielding, heat dissipation and fixing frame.
- a protective film is also provided on the reflective layer.
- the protective film is preferably one of a polyethylene and a polyethylene terephthalate protective film.
- the material can be hot and cold, and can achieve a 90 degree bend, a bucking of 2 mm or more, and a hemming edge. Carrying pressures above 800g, and It can satisfy the function of cleaning in most solvents.
- the thickness range of the present invention is preferably between 0.075 and 1.50 mm, and the thickness does not include a protective film, and the protective film is torn off during assembly of the backlight module.
- the reflective layer is preferably one of a drawn/foamed polyethylene terephthalate and a white reflective layer of a polyethylene fiber structure, so that the reflectance is not less than 95%;
- the above adhesive layer is selected from a thermal conductive adhesive, and a thermal conductive adhesive such as an acrylate type pressure sensitive adhesive is more preferable.
- the above metal layer is also called a shielded heat conducting layer, and the thermal conductivity is required to be not less than 5 W/m ⁇ K. Therefore, the material of the metal layer is preferably stainless steel (200, 300, 400, 500, 600 series), various types of aluminum and aluminum alloy sheets. One of the materials (1, 2, 3, 4, 5, 6, 7, 8 series), the ductility, strength and hardness of the above-mentioned metals satisfy the requirements of the present invention, and the breaking elongation can reach 10% or more. After molding, it can carry at least 800g of pressure without deformation, and has excellent matching performance with the reflective film.
- the utility model can satisfy the bearing capacity of 800g or more without deformation, and the breaking strength can reach 60MPa or more, and the diaphragm of the liquid crystal backlight module is placed on the structure body (supported at both ends) without deformation.
- high temperature and high humidity 60 ° C, 75% ⁇ 10% RH placed 300h
- low temperature and high humidity 40 V, 90% RH
- the whole structure is not deformed, delaminated, not yellowed; It has a certain degree of cleanliness, no residual glue on the reflective surface, 70 °C high temperature, shielding and heat conduction.
- the size and shape of the utility model can be arbitrarily fabricated, and is suitable for a multi-standard liquid crystal backlight module; at the same time, the liquid crystal backlight module mounting component--PC fixing frame is saved, the cost is reduced, the assembly efficiency is improved; and the reflection in the current liquid crystal backlight module can be replaced.
- Membrane, PC frame, metal plate assembly can be used for molding, cutting, stamping and other surface forming processes to improve the performance and quality of the structure. It can be widely used in mobile phones, notebook computers, LCD monitors, TVs and other fields.
- FIG. 1 is a schematic structural view of the present invention.
- the 11 reflective layer and the 31 metal layer are bonded and bonded by the 21 adhesive layer.
- the 11-reflecting layer and the 31-metal layer are coated with an adhesive layer by a precision coater to form a composite material (Fig. 1), which is protected by a protective film, and is subjected to customer requirements. It is cut into the specified size and then stamped into the final product form on the press (Fig. 2).
Abstract
A multifunctional reflecting and shielding film for a liquid crystal backlight module comprises a reflective layer (11), an adhesive layer (21), and a metal layer (31). The reflective layer (11) and the metal layer (31) are compounded integrally by the adhesive layer (21). The cross sections of the reflective layer (11), the adhesive layer (21), and the metal layer (31) are all concave shaped. The film can mount and fix various optical film materials in the backlight module, so as to omit a PC mounting frame, simplify the structure of the backlight module, reduce costs, and raise assembling efficiency.
Description
一种液晶背光模组用多功能反射屏蔽膜 技术领域 Multifunctional reflection shielding film for liquid crystal backlight module
本实用新型涉及一种液晶电视背光模组用固定框、 反射、 屏蔽、 散热多功能组件。 背景技术 The utility model relates to a fixing frame for a liquid crystal television backlight module, a reflecting, shielding and heat dissipating multifunctional component. Background technique
随着市场需求的不断提高， 手机、 游戏机、 液晶显示器、 液晶电视等电器原件逐渐 向薄型化方向发展， 而且随着竞争的加剧， 对电器原件显示质量的要求越来越高， 这就 要求其专用的显示器件向着散热性能好、 薄型、 低成本的方向发展。 With the continuous improvement of market demand, original electronic components such as mobile phones, game consoles, liquid crystal displays, and LCD TVs are gradually developing in a thinner direction. As competition intensifies, the requirements for the display quality of electrical components are becoming higher and higher, which requires Its dedicated display device is developing in the direction of good heat dissipation, thinness and low cost.
中国专利 CN1825187A公开了一种背光模块的反射片， 其反射片包括已反射层与一 导电层， 导电层设置于反射层的一侧， 并将导电层与背光模块的接地相连接。 如此， 当 本实用新型应用于侧面式的背光模块或是直下式的背光模块时。 通过导电层接地， 可防 止电磁干扰与静电放电而影响背光模块元件的正常运作。 The Chinese patent CN1825187A discloses a reflective sheet of a backlight module, the reflective sheet comprising a reflective layer and a conductive layer, the conductive layer being disposed on one side of the reflective layer, and connecting the conductive layer to the ground of the backlight module. Thus, when the present invention is applied to a side-type backlight module or a direct-lit backlight module. Grounding through the conductive layer prevents electromagnetic interference and electrostatic discharge from affecting the normal operation of the backlight module components.
中国专利 CN201568896U公开了一种背光模组的反射片结构体及背光模组的结构。 该背光模组的反射片结构体， 包括一塑胶背板与一粘合于塑胶背板之一面的反射片。 其 塑胶背板选自于聚乙烯背板、 聚对苯二甲酸乙二醇酯背板、 聚丙烯背板、 聚苯乙烯背板、 聚氯乙烯背板其中的一种背板， 这些背板都是高分子聚合物， 其散热性能较差。 Chinese Patent No. CN201568896U discloses a structure of a reflective sheet structure and a backlight module of a backlight module. The reflective sheet structure of the backlight module comprises a plastic back sheet and a reflective sheet adhered to one side of the plastic back sheet. The plastic backing plate is selected from the group consisting of a polyethylene backing plate, a polyethylene terephthalate backing plate, a polypropylene backing plate, a polystyrene backing plate, and a polyvinyl chloride backing plate. They are all high molecular polymers and their heat dissipation performance is poor.
以上现有技术均存在加工过程中不易清洗， 耐酸碱性不好、 屏蔽、 散热性能、 组件 多的缺点。 All of the above prior art techniques have the disadvantages of being difficult to clean during processing, poor acid and alkali resistance, shielding, heat dissipation performance, and many components.
实用新型内容 Utility model content
本实用新型的目的在于克服上述现有技术存在的缺陷， 提供一种集反射、 屏蔽、 固 定框、 散热功能与一体的液晶电视背光模组用多功能组件。 The purpose of the utility model is to overcome the defects of the prior art mentioned above, and to provide a multifunctional component for a liquid crystal television backlight module which integrates reflection, shielding, fixing frame and heat dissipation function.
实用新型所述背光模组用多功能组件， 反射层、 胶粘层和金属层， 反射层和金属层 通过胶粘层复合为一体， 上述反射层、 胶粘层、 金属层的横截面均呈 "凹"字型。 其中， 反射层用于提供背光源反射功能， 胶粘层， 具有导热功能， 用于将反射层与金属层粘接 为一体， 金属层， 具有电磁屏蔽、 散热和固定框功能。 The multifunctional module of the backlight module of the utility model has a reflective layer, an adhesive layer and a metal layer, and the reflective layer and the metal layer are integrated by an adhesive layer, and the cross sections of the reflective layer, the adhesive layer and the metal layer are all "Concave" type. The reflective layer is used for providing a backlight reflection function, an adhesive layer, and a heat conduction function for bonding the reflective layer and the metal layer into one body, and the metal layer has the functions of electromagnetic shielding, heat dissipation and fixing frame.
为保护组件表面质量， 反射层上还设有保护膜。 To protect the surface quality of the component, a protective film is also provided on the reflective layer.
所述保护膜优选聚乙烯、 聚对苯二甲酸乙二醇酯保护膜中的一种， 这种材料能进行 冷热冲型， 能达到 90度的折弯、 2mm以上折边且折边能承载超过 800g以上的压力， 并
能满足在多数溶剂中清洗的功能。 The protective film is preferably one of a polyethylene and a polyethylene terephthalate protective film. The material can be hot and cold, and can achieve a 90 degree bend, a bucking of 2 mm or more, and a hemming edge. Carrying pressures above 800g, and It can satisfy the function of cleaning in most solvents.
为顺应液晶背光模组薄型化的发展趋势， 本实用新型的厚度范围优选在 0.075~1.50mm之间， 此厚度不包括保护膜， 保护膜在背光模组组装过程中撕去。 所述的 反射层优选为拉延 /发泡聚对苯二甲酸乙二醇酯、 聚乙烯纤维结构白色反射层中的一种， 使反射率不小于 95%; In order to comply with the trend of thinning the liquid crystal backlight module, the thickness range of the present invention is preferably between 0.075 and 1.50 mm, and the thickness does not include a protective film, and the protective film is torn off during assembly of the backlight module. The reflective layer is preferably one of a drawn/foamed polyethylene terephthalate and a white reflective layer of a polyethylene fiber structure, so that the reflectance is not less than 95%;
为提高本实用新型的导热功能， 保证具有优良的连续施工性能， 符合 UL94 V-0等级 要求， 上述胶粘层选导热胶， 更优选丙烯酸酯型压敏胶等导热胶。 In order to improve the heat conduction function of the utility model, it is ensured that the continuous construction performance is excellent, and the UL94 V-0 grade is required, and the above adhesive layer is selected from a thermal conductive adhesive, and a thermal conductive adhesive such as an acrylate type pressure sensitive adhesive is more preferable.
上述金属层又称为屏蔽导热层， 要求热导率不低于 5W/m · K， 故金属层的材料优选 不锈钢 （200、 300、 400、 500、 600系列）、 各型号铝及铝合金片材 （1、 2、 3、 4、 5、 6、 7、 8系列） 中的一种， 上述金属的延展性以及强度、 硬度均满足本实用新型的要求， 其 破断伸度能达到 10%以上， 成型后能至少承载 800g以上的压力不变形， 且与反射膜具有 优良的匹配性能。 The above metal layer is also called a shielded heat conducting layer, and the thermal conductivity is required to be not less than 5 W/m · K. Therefore, the material of the metal layer is preferably stainless steel (200, 300, 400, 500, 600 series), various types of aluminum and aluminum alloy sheets. One of the materials (1, 2, 3, 4, 5, 6, 7, 8 series), the ductility, strength and hardness of the above-mentioned metals satisfy the requirements of the present invention, and the breaking elongation can reach 10% or more. After molding, it can carry at least 800g of pressure without deformation, and has excellent matching performance with the reflective film.
本实用新型能满足承载力 800g以上不变形， 破断强度能达到 60MPa以上， 液晶背 光模组中膜片放置于结构体 （两端支撑） 上， 不变形。 在冷热循环 （-40°C (30min) /65°C (30min)循环 50次)）冲击下、高温高湿（60°C， 75% ± 10%RH放置 300h)低温高湿（40 V， 90%RH) 下整体结构不变形、 不分层、 不黄化； 具有一定的洁净度， 在反射面腹膜 不残胶， 耐 70°C高温， 具备屏蔽和导热功能。 散热更好、 加工过程耐溶剂擦洗 （乙醚、 乙醇、 正己烷、 正庚烷、 1%硫酸）、 静电易消除、 耐酸碱性更好、 不易黄化、 厚度薄、 重量轻， 同时提高加工组装效率， 降低成本。 The utility model can satisfy the bearing capacity of 800g or more without deformation, and the breaking strength can reach 60MPa or more, and the diaphragm of the liquid crystal backlight module is placed on the structure body (supported at both ends) without deformation. In the hot and cold cycle (-40 ° C (30mi n / 65 ° C (30min) cycle 50 times)) under impact, high temperature and high humidity (60 ° C, 75% ± 10% RH placed 300h) low temperature and high humidity (40 V, 90% RH) The whole structure is not deformed, delaminated, not yellowed; It has a certain degree of cleanliness, no residual glue on the reflective surface, 70 °C high temperature, shielding and heat conduction. Better heat dissipation, solvent scrubbing during processing (ether, ethanol, n-hexane, n-heptane, 1% sulfuric acid), easy to remove static electricity, better acid and alkali resistance, less yellowing, thinner thickness, lighter weight, and improved processing Assembly efficiency and cost reduction.
本实用新型尺寸、 形状可进行任意制作， 适用于多规格液晶背光模组； 同时省却液 晶背光模组安装组件—— PC固定框、 降低成本、 提高装配效率； 可以替代目前液晶背光 模组中反射膜、 PC框、 金属板组件； 可进行胶复合、 切割、 冲压等成型工艺并进行表面 保护， 提高结构体性能、 品质， 可广泛应用在手机， 笔记本电脑， 液晶显示器， 电视等 不同领域。 附图说明 The size and shape of the utility model can be arbitrarily fabricated, and is suitable for a multi-standard liquid crystal backlight module; at the same time, the liquid crystal backlight module mounting component--PC fixing frame is saved, the cost is reduced, the assembly efficiency is improved; and the reflection in the current liquid crystal backlight module can be replaced. Membrane, PC frame, metal plate assembly; can be used for molding, cutting, stamping and other surface forming processes to improve the performance and quality of the structure. It can be widely used in mobile phones, notebook computers, LCD monitors, TVs and other fields. DRAWINGS
图 1是本实用新型的的结构结构示意图 具体实施方式 1 is a schematic structural view of the present invention.
为了能够更清楚了解本实用新型的技术手段而可依照说明书的内容予以实施，并且 为了让本实用新型的上述和其他目的、 特征和优点能够更明显易懂， 特举实施例， 并配 合附图， 详细说明如下：
本实用新型所述有 11反射层和 31金属层通过 21胶粘层进行粘接复合。 The above and other objects, features and advantages of the present invention will become more apparent and understood, , the detailed description is as follows: According to the present invention, the 11 reflective layer and the 31 metal layer are bonded and bonded by the 21 adhesive layer.
加工时采用冲压成型的方法，将 11反射层与 31金属层经过精密涂布机涂布胶粘层， 制成复合材料（图 1 )， 贴上保护膜进行保护， 按照客户要求， 对其进行切割成规定尺寸， 再在冲压机上应用模具冲压成最终成品形式 （图 2)。 有必要指出的是以上所述仅为本实 用新型的较佳实施方式， 本实用新型的保护范围并不以上述实施方式为限， 但凡本领域 技术人员根据本实用新型所揭示内容所做做出的一些非本质的改进和调整 （如等效修饰 或变化）， 皆应纳入权利要求书中记载的保护范围内。
During the processing, the 11-reflecting layer and the 31-metal layer are coated with an adhesive layer by a precision coater to form a composite material (Fig. 1), which is protected by a protective film, and is subjected to customer requirements. It is cut into the specified size and then stamped into the final product form on the press (Fig. 2). It is to be noted that the above description is only a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above embodiments, but those skilled in the art can make according to the disclosure of the present invention. Some non-essential improvements and adjustments (such as equivalent modifications or variations) are included in the scope of protection stated in the claims.
Claims
1、 一种背光模组用多功能组件结构体， 其特征在于包括： 反射层、胶粘层、金属层， 反射层和金属层通过胶粘层复合为一体，上述反射层、胶粘层、金属层的横截面均呈 "凹" 字型 A multifunctional component structure for a backlight module, comprising: a reflective layer, an adhesive layer, a metal layer, a reflective layer and a metal layer integrated by an adhesive layer, the reflective layer, the adhesive layer, The metal layer has a "concave" cross section
2、 如权利要求 1 所述背光模组用多功能反射屏蔽膜， 其特征在于其厚度范围在 0.075~1.50mm之间。 2. The multifunctional reflective shielding film for a backlight module according to claim 1, wherein the thickness ranges from 0.075 to 1.50 mm.
3、 如权利要求 1或 2所述背光模组用多功能组件， 其特征在于反射层上还设有保护 膜。 3. The multifunction module for a backlight module according to claim 1 or 2, wherein the reflective layer is further provided with a protective film.
4、 如权利要求 3所述背光模组用多功能组件， 其特征在于所述保护膜为聚乙烯、 聚 对苯二甲酸乙二醇酯保护膜中的一种； 4. The multifunctional component for a backlight module according to claim 3, wherein the protective film is one of a polyethylene and a polyethylene terephthalate protective film;
5、 如权利要求 1或 2所述背光模组用多功能组件， 其特征在于所述的反射层为拉延 /发泡聚对苯二甲酸乙二醇酯、 聚乙烯纤维结构白色反射层中的一种； The multifunctional assembly for a backlight module according to claim 1 or 2, wherein the reflective layer is a drawn/foamed polyethylene terephthalate or a polyethylene fiber structure white reflective layer. a kind
6、 如权利要求 1或 2所述背光模组用多功能组件， 其特征在于所述的胶粘层为导热 胶。 The multi-function assembly for a backlight module according to claim 1 or 2, wherein the adhesive layer is a thermal conductive adhesive.
7、 如权利要求 6所述背光模组用多功能组件， 其特征在于所述导热胶优选为丙烯酸 型压敏胶。 A multifunctional assembly for a backlight module according to claim 6, wherein said thermally conductive adhesive is preferably an acrylic pressure sensitive adhesive.
8、如权利要求 1或 2 所述背光模组用多功能组件，其特征在于所述金属层为不锈钢 200、 300、 400、 500、 600系列、 铝或铝合金片材 1、 2、 3、 4、 5、 6、 7、 8系列中的一 种。 The multifunctional assembly for a backlight module according to claim 1 or 2, wherein the metal layer is stainless steel 200, 300, 400, 500, 600 series, aluminum or aluminum alloy sheets 1, 2, 3, One of the 4, 5, 6, 7, and 8 series.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020576343.X | 2010-10-26 | ||
| CN 201020576343 CN202040738U (en) | 2010-10-26 | 2010-10-26 | Multifunctional reflecting shielding film for liquid crystal back light module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012055221A1 true WO2012055221A1 (en) | 2012-05-03 |
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|---|---|---|---|
| PCT/CN2011/073239 WO2012055221A1 (en) | 2010-10-26 | 2011-04-25 | Multifunctional reflecting and shielding film for liquid crystal backlight module |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN202040738U (en) |
| TW (1) | TWM416771U (en) |
| WO (1) | WO2012055221A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392972A (en) * | 2011-11-18 | 2012-03-28 | 深圳市华星光电技术有限公司 | Reflecting plate and backlight system |
| CN102590909B (en) * | 2012-03-02 | 2014-04-02 | 青岛海信电器股份有限公司 | Reflector plate and liquid crystal module |
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2010
- 2010-10-26 CN CN 201020576343 patent/CN202040738U/en not_active Expired - Fee Related
-
2011
- 2011-04-25 WO PCT/CN2011/073239 patent/WO2012055221A1/en active Application Filing
- 2011-05-04 TW TW100207913U patent/TWM416771U/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060152647A1 (en) * | 2005-01-11 | 2006-07-13 | Samsung Electronics Co., Ltd. | Chassis, backlight assembly having the same and liquid crystal display device having the same |
| CN1825187A (en) * | 2006-04-04 | 2006-08-30 | 友达光电股份有限公司 | Backlight module reflector plate |
| CN101126861A (en) * | 2006-08-18 | 2008-02-20 | 群康科技(深圳)有限公司 | Backlight module group and liquid crystal display device using the backlight module |
| CN201170490Y (en) * | 2008-03-24 | 2008-12-24 | 苏州世鼎电子有限公司 | Lampshade structure |
| CN201568896U (en) * | 2009-07-13 | 2010-09-01 | 刘喻玺 | Reflector plate structure body of backlight module and backlight module structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN202040738U (en) | 2011-11-16 |
| TWM416771U (en) | 2011-11-21 |
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