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CN108089382A - 一种液晶面板及显示装置 - Google Patents

一种液晶面板及显示装置 Download PDF

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Publication number
CN108089382A
CN108089382A CN201711460913.1A CN201711460913A CN108089382A CN 108089382 A CN108089382 A CN 108089382A CN 201711460913 A CN201711460913 A CN 201711460913A CN 108089382 A CN108089382 A CN 108089382A
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tft substrate
substrates
liquid crystal
crystal panel
tft
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景小红
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Huizhou China Star Optoelectronics Technology Co Ltd
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Huizhou China Star Optoelectronics Technology Co Ltd
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Priority to CN201711460913.1A priority Critical patent/CN108089382A/zh
Priority to PCT/CN2018/073982 priority patent/WO2019127782A1/zh
Priority to US15/749,495 priority patent/US20200142241A1/en
Publication of CN108089382A publication Critical patent/CN108089382A/zh
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1345Conductors connecting electrodes to cell terminals
    • G02F1/13458Terminal pads
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
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    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509Filters, e.g. light shielding masks
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    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528Polarisers
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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    • G02F1/1339Gaskets; Spacers; Sealing of cells
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    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1345Conductors connecting electrodes to cell terminals
    • G02F1/13452Conductors connecting driver circuitry and terminals of panels
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
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    • H05K1/02Details
    • H05K1/11Printed elements for providing electric connections to or between printed circuits
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    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
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    • H05K1/02Details
    • H05K1/14Structural association of two or more printed circuits
    • H05K1/147Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
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    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/22Secondary treatment of printed circuits
    • H05K3/28Applying non-metallic protective coatings
    • H05K3/285Permanent coating compositions
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1345Conductors connecting electrodes to cell terminals
    • G02F1/13456Cell terminals located on one side of the display only
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
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    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
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    • H05K2201/10Details of components or other objects attached to or integrated in a printed circuit board
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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

本发明公开了一种液晶面板,包括TFT基板、围设于TFT基板上表面边缘的一圈封框胶、盖设于封框胶上的CF基板及注入封框胶内侧的液晶,还包括引出线,TFT基板和CF基板的同侧端面均超出封框胶的相应侧端面,引出线的一端与TFT基板超出部分上表面的电极线相连,另外一端弯折后引出至TFT基板背面形成绑定端子。本发明还公开了一种显示装置。本发明的液晶面板将CF基板及其上的偏光片作为观看面,TFT侧线路无需做印刷处理,降低了成本;同时将液晶面板的绑定端子通过引出线设置于TFT基板的背面,将TFT正面超出端上方的CF及其上偏增大,以消除TFT正面的段差,使CF基板及上偏具有可外观性,其次可以缩窄正面的引线区的宽度,以增加可视区的屏占比。

Description

一种液晶面板及显示装置
技术领域
本发明涉及液晶显示技术领域,更具体的说,它涉及一种液晶面板及显示装置。
背景技术
液晶显示器的无边框(Bezel Less)整机逐渐成为一个流行的设计趋势,无边框显示器是指屏幕边框极窄的显示器设备,采用将显示器屏幕和边框融合在一起造成视觉上看不到物理边框的设计,它的一大优点就是外观出众,相比过去带着厚边框的显示器,无边框能带来真正意义上的水平屏幕,从而使外形上更有时尚感;另一大优点就是,采用无边框技术的显示器可以很好的实现显示器拼接,实现两联屏、三联屏甚至多联屏,而无边框显示器能最大化体现联屏的效果。此外,无边框显示器能给用户带来更宽广的视觉效果,消除了原先厚边框显示器的束缚感。
目前液晶显示器的无边框设计通常是在液晶面板中将设置于下端的阵列(ThinFilmTransistor array,即薄膜晶体管阵列,简称TFT)基板的一侧延伸出上端的彩膜(Color filter,即彩色滤光片,简称CF)基板,在延伸部位设置Bonding (绑定)端以连接驱动芯片从而连至印刷线路板,由于在绑定之后,绑定区域线路器件会造成反光问题,因此需要对延伸区域进行印刷处理,使得无边框的液晶面板工艺变得复杂,增加了生产成本,另外,由于绑定端一般需要一定的宽度,因此,虽然该种情况下视觉上没有物理边框,但是查看面中绑定端的宽度是存在且较宽的,降低了用户体验度。
发明内容
鉴于现有技术存在的缺陷,本发明提供了一种液晶面板及显示装置,以提供一种低成本的无边框液晶面板。
为了实现上述的目的,本发明采用了如下的技术方案:
本发明提供了一种液晶面板,包括TFT基板、围设于TFT基板上表面边缘的一圈封框胶、盖设于所述封框胶上的CF基板及注入所述封框胶内侧的液晶,还包括引出线,所述TFT基板和所述CF基板的同侧端面均超出所述封框胶的相应侧端面,所述引出线的一端与所述TFT基板超出部分上表面的电极线相连,另外一端弯折后引出至所述TFT基板背面形成绑定端子。
进一步地,所述CF基板的超出长度不小于所述TFT基板的超出长度,以使所述CF基板完全遮挡所述TFT基板。
进一步地,所述TFT基板和所述CF基板的外表面分别贴附有第一偏光片和第二偏光片,所述第一偏光片完全覆盖所述CF基板的外表面,所述第二偏光片贴附于所述TFT基板的外表面并与所述绑定端子相邻。
进一步地,所述TFT基板和所述CF基板超出部分之间填充有封装胶。
进一步地,所述CF基板的超出部分与所述TFT相对的表面上设有凹槽,所述凹槽内填充有所述封装胶。
进一步地,所述引出线紧贴所述TFT基板的外表面。
进一步地,所述引出线通过印刷或蚀刻于所述TFT基板的表面。
本发明还提供了一种显示装置,包括背光模组和所述的液晶面板,所述背光模组设于所述TFT基板背离所述CF基板的一侧,自所述背光模组发出的光经过所述TFT后自所述CF基板表面射出。
与现有技术相比,本发明提供的液晶面板将CF基板及其上的偏光片作为观看面,TFT基板无需外翻,故TFT侧线路反光问题无需做印刷处理,降低了成本;同时将液晶面板的绑定端子通过引出线设置于TFT基板的背面,可将TFT 正面超出端上方的CF及其上偏增大,以消除TFT正面的段差,使CF基板及上偏具有可外观性,其次可以缩窄正面的引线区的宽度,可增加可是去的屏占比,提升用户体验。
附图说明
图1是本发明液晶面板的一实施例的结构示意图;
图2是图1中I部的放大示意图;
图3是本发明液晶面板的另一实施例的结构示意图;
图4是图3中II部的放大示意图;
图5是本发明显示装置的结构示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本发明进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
参见图1和图3,本发明的液晶面板,包括与背光组件相对的TFT(Thin FilmTransistor,薄膜晶体管)基板10、设于TFT基板10上表面的封框胶30及盖设于封框胶30上的CF(Color filter,彩色滤光片)基板20,TFT基板10和CF 基板20之间的封框胶30内设有液晶40,可以理解,设有液晶40的区域形成液晶面板的显示区域,其中TFT基板10和CF基板20的同侧端面均超出所述封框胶30的该侧端面,TFT基板10超出部分的上表面电连接有引出线70,引出线70弯折后在所述TFT基板10背面形成用于连接COF80的绑定端子10-1,绑定端子10-1上设有导电端子,使得COF80与导电端子电连接。
作为本发明的一实施例,参见图1和图2,CF基板20的超出长度与TFT 基板10的超出长度相等,并CF基板20的形状与TFT基板10的形状相同,使得TFT基板10上端的CF基板20是刚好覆盖TFT基板10。
作为本发明的另一实施例,由于在实施例一中CF基板20的超出长度与TFT 基板10的超出长度相等,当TFT基板10超出部分连接的引出线70不与TFT 基板10的表面贴附时,则引出线70会暴露于TFT基板10的外端面,容易造成引出线70损坏,因此,基于上述实施例,本实施例做了进一步改进,参见图3 和图4,CF基板20的超出长度略大于TFT基板10的超出长度,使得引出线70 可以恰好置于CF基板20多出的长度空间内,这样既可以在尽可能减小非显示的超出长度的基础上可以对引出线70进行保护,可以理解,此时的CF基板20 不仅满足完全覆盖下端的TFT基板10,而且在设置引出线70的一端超出TFT 基板10一段,使得超出的部分对引出线70进行保护。
优选的,参见图1和图3,TFT基板10和CF基板20的外表面分别贴附有第一偏光片50和第二偏光片60,进一步的,第一偏光片50完全覆盖CF基板 20的外表面,此时,第一偏光片50成为最外观看面并且完全覆盖下端的TFT 基板10,第二偏光片60贴附于TFT基板10的外表面,可理解,当引出线70 弯折后贴附在TFT基板10的外表面形成绑定端子10-1时,第二偏光片60贴附在除去绑定端子10-1的TFT基板10的外表面上。
具体的,当将引出线70引出后,需对液晶面板的侧部进行封装,即对CF 基板20与TFT基板10超出部分之间形成的空腔进行填充,该填充可通过多种方式进行,例如,从空腔的侧部注入封装胶300进行封装,封装胶300可将TFT 基板10侧部端面处的引出线70进行部分包裹,可对引出线70进行保护。
为了使得上下基板之间更加紧固连接,可以在CF基板20的超出部分的下表面上设有凹槽201,在上述封装过程中可对凹槽201内填充封装胶300以实现上下基板的紧固连接,通过该种方式,可以有效的减小上下基板的超出长度而不影响上下基板之间的紧固连接,从而可增加可视区的屏占比。
具体的,引出线70的目的是将原本必须设计在TFT基板10上表面的绑定端子通过引出线70设计于TFT基板10的下表面,从而可以减小上表面超出的宽度,因此引出线70引出之后只要能够与COF80连接即可,优选的,为了结构的紧促也为了外观的美观,引出线70紧贴TFT基板10的外表面,即引出线 70从TFT基板10超出部分的上表面延伸至TFT基板10侧部直至TFT基板10 的背面,优选的,引出线70通过印刷或蚀刻于所述TFT基板10的表面。
参见图5,相应地,本实施例的显示装置包括背光模组100和上述所述的液晶面板,背光模组100设于TFT基板10背离所述CF基板20的一侧,自背光模组100发出的光经过所述TFT基板10后自CF基板20表面射出。其中COF80 包括柔性线路板和柔性线路板上的驱动IC(集成电路),液晶面板通过COF80 的柔性线路板连接PCB板90。
本实施例的液晶面板将CF基板及其上的偏光片作为观看面,TFT基板无需外翻,故TFT侧线路反光问题无需做印刷处理,降低了成本;同时将液晶面板的绑定端子通过引出线设置于TFT基板的背面,可将TFT正面超出端上方的 CF及其上偏增大,以消除TFT正面的段差,使CF基板及上偏具有可外观性,其次可以缩窄正面的引线区的宽度,以增加可视区的屏占比,提升用户体验。
以上仅是本申请的具体实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本申请原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本申请的保护范围。

Claims (8)

1.一种液晶面板,其特征在于,包括TFT基板(10)、围设于TFT基板(10)上表面边缘的一圈封框胶(30)、盖设于所述封框胶(30)上的CF基板(20)及注入所述封框胶(30)内侧的液晶(40),还包括引出线(70),所述TFT基板(10)和所述CF基板(20)的同侧端面均超出所述封框胶(30)的相应侧端面,所述引出线(70)的一端与所述TFT基板(10)超出部分上表面的电极线相连,另外一端弯折后引出至所述TFT基板(10)背面形成绑定端子(70-1)。
2.根据权利要求1所述的液晶面板,其特征在于:所述CF基板(20)的超出长度不小于所述TFT基板(10)的超出长度,以使所述CF基板(20)完全遮挡所述TFT基板(10)。
3.根据权利要求2所述的液晶面板,其特征在于:所述TFT基板(10)和所述CF基板(20)的外表面分别贴附有第一偏光片(50)和第二偏光片(60),所述第一偏光片(50)完全覆盖所述CF基板(20)的外表面,所述第二偏光片(60)贴附于所述TFT基板(10)的外表面并与所述绑定端子(70-1)相邻。
4.根据权利要求3所述的液晶面板,其特征在于:所述TFT基板(10)和所述CF基板(20)超出部分之间填充有封装胶(300)。
5.根据权利要求4所述的液晶面板,其特征在于:所述CF基板(20)的超出部分与所述TFT(10)相对的表面上设有凹槽(201),所述凹槽(201)内填充有所述封装胶(300)。
6.根据权利要求1-5任意一项所述的液晶面板,其特征在于:所述引出线(70)紧贴所述TFT基板(10)的外表面。
7.根据权利要求6所述的液晶面板,其特征在于:所述引出线(70)通过印刷或蚀刻于所述TFT基板(10)的表面。
8.一种显示装置,其特征在于,包括背光模组(100)和如权利要求1-7任意一项所述的液晶面板,所述背光模组(100)设于所述TFT基板(10)背离所述CF基板(20)的一侧,自所述背光模组(100)发出的光经过所述TFT(10)后自所述CF基板(20)表面射出。
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