CN201117634Y - 外电极荧光灯和背光模组 - Google Patents

外电极荧光灯和背光模组 Download PDF

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CN201117634Y
CN201117634Y CNU2007201705310U CN200720170531U CN201117634Y CN 201117634 Y CN201117634 Y CN 201117634Y CN U2007201705310 U CNU2007201705310 U CN U2007201705310U CN 200720170531 U CN200720170531 U CN 200720170531U CN 201117634 Y CN201117634 Y CN 201117634Y
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external
electrode
lamp
fluorescent lamp
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冯沙
景小红
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Innolux Shenzhen Co Ltd
Innolux Corp
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Innolux Shenzhen Co Ltd
Innolux Display Corp
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/02—Single-pole devices, e.g. holder for supporting one end of a tubular incandescent or neon lamp
    • 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
    • G02F1/133604—Direct backlight with lamps
    • 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
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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
    • G02F1/133612—Electrical details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
    • H01J65/046—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by using capacitive means around the vessel

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  • Physics & Mathematics (AREA)
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  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

本实用新型涉及一种外电极荧光灯和采用该外电极荧光灯的背光模组。该外电极荧光灯包括一灯管和收容灯管端部于其内的灯座。该灯管包括一放电管和附着于该放电管端部的外表面的外电极。每一灯座包括一绝缘载体和设置在该绝缘载体内的电极引出线，该绝缘载体内壁涂覆有导电涂层，该电极引出线与该导电涂层电连接，该灯管的端部***该绝缘载体内，该灯管的外电极与涂覆在该绝缘载体内壁的导电涂层电连接。

Description

外电极荧光灯和背光模组
技术领域
本实用新型涉及一种外电极荧光灯和背光模组。
背景技术
由于液晶电视和液晶显示器中的液晶本身不发光，因而，为达到显示效果，须给液晶面板提供一光源装置，如背光模组，以实现显示功能。背光模组常采用发光二极管、冷阴极荧光灯(Cold Cathode Fluorescent Lamp，CCFL)等作为光源。
近年来，光电产业迅猛发展，业界提出一种与冷阴极荧光灯发光原理相似的外电极荧光灯(External Electrode FluorescentLamp，EEFL)，其较冷阴极荧光灯具有结构简单、成本较低、应用方便等优点。
请参阅图1，是一种现有技术背光模组的立体示意图。该背光模组1包括从下至上依次设置的一反射片120、多个光源110和一扩散片130。
该光源110是外电极荧光灯，其包括一放电管112和二外电极114，该二外电极114分别附着于该放电管112的两端的外表面。该放电管112为一密封的透明玻璃管，其内部填充有放电气体(图未示)，其中间部分的内表面涂覆有荧光层(图未示)。
当该光源110的二外电极114被施加一高频交流电压时，该放电气体受该高频交流电压影响而呈电离状态，使该放电管112内产生多个导电粒子，同时该放电管112的两端也受该二外电极114的高频交流电压影响，分别形成一放电电极。该放电电极吸引该导电粒子，使该导电粒子向该放电电极移动而撞击该放电电极，进而产生多个具一定动能的二次导电粒子，该二次导电粒子撞击该放电气体的分子而激发出红外光，该红外光经由该荧光层后发射出可见光。
然而，多个光源110通常是并联连接，常采用灯管线(未标示)焊接在外电极114上的方法来实现连接，此种方法耗时较长，且灯管线容易脱落，可靠性较低。另有一种方法是采用金属套管的方式来连接，金属套管与放电管112端部的匹配度要求较高，由于制造公差易导致金属套管与外电极114接触性较差。
实用新型内容
为了解决现有技术外电极荧光灯可靠性较低的问题，有必要提供一种可靠性较高的外电极荧光灯。
另，提供一种应用上述外电极荧光灯的背光模组也为必要。
一种外电极荧光灯，其包括一灯管和收容灯管端部于其内的灯座。该灯管包括一放电管和附着于该放电管端部外表面的外电极。每一灯座包括一绝缘载体和设置在该绝缘载体内的电极引出线，该绝缘载体内壁涂覆有导电涂层，该电极引出线与该导电涂层电连接，该灯管的端部***该绝缘载体内，该灯管的外电极与涂覆在该绝缘载体内壁的导电涂层电连接。
一种背光模组，其包括一反射板、一与该反射板相对的扩散板和设置在该反射板与该扩散板间的至少一外电极荧光灯。该外电极荧光灯包括一灯管和收容灯管端部于其内的灯座。该灯管包括一灯管和收容灯管端部于其内的灯座。该灯管包括一放电管和附着于该放电管端部外表面的外电极。每一灯座包括一绝缘载体和设置在该绝缘载体内的电极引出线，该绝缘载体内壁涂覆有导电涂层，该电极引出线与该导电涂层电连接，该灯管的端部***该绝缘载体内，该灯管的外电极与涂覆在该绝缘载体内壁的导电涂层电连接。
相较于现有技术，该外电极通过该绝缘载体的导电涂层与电极引出线电连接，其无需在外电极上焊接灯管线，仅需将灯管***绝缘载体内即可，其组装方便快速。
附图说明
图1是一种现有技术背光模组的立体示意图。
图2是本实用新型背光模组第一实施方式的立体示意图。
图3是图2所示外电极荧光灯的立体分解示意图。
图4是图3沿IV-IV方向的截面放大图。
图5是图3所示外电极荧光灯组装后的立体示意图。
图6是本实用新型背光模组第二实施方式的弹性绝缘载体的截面放大图。
具体实施方式
请参阅图2，是本实用新型背光模组第一实施方式的立体示意图。该背光模组3包括从上至下依次设置的一扩散片33、多个外电极荧光灯31和一反射片32。
请参阅图3，是图2所示外电极荧光灯31的立体分解示意图。该外电极荧光灯31包括一灯管310和二灯座320，该二灯座320用于收容该灯管310的两端。
该灯管310包括一放电管312和二外电极314，该二外电极314分别附着于该放电管312两端的外表面。该放电管312为一密封的透明玻璃管，其内部填充有放电气体，其中间部分的内表面涂覆有荧光层(图未示)。
每一灯座320包括一弹性绝缘载体322和一螺母328，该弹性绝缘载体322的外表面设置有螺纹(未标示)，该螺母可旋入该弹性绝缘载体322的螺纹以固定。
请一并参阅图4，是图3沿IV-IV方向的截面放大图。该弹性绝缘载体322包括一收容部323和一与该收容部323相连的引出部324。该收容部323是圆筒状结构，其包括一筒壁(未标示)和一筒底(未标示)，该筒壁设置有对称分布的四沟槽(未标示)，该四沟槽由灯管***端向筒底延伸且未延伸至该筒底，将该筒壁分割成四瓣。该筒壁和筒底围成一收容空腔325，用以收容该灯管310两端，且该收容空腔325由灯管***端至筒底处，其直径保持一致。收容空腔325的形状与灯管310两端的形状匹配，且该收容空腔325的内壁涂覆有导电涂层326。
该引出部324设置于该筒底，其包括一收容孔(未标示)，该收容孔与该收容空腔325相连通，该收容孔内设置有电极引出线327，该电极引出线317与该导电涂层326电连接。
请一并参阅图5，是图3所示外电极荧光灯31组装后的立体示意图。组装该外电极荧光灯31时，分别将该外电极荧光灯31的灯管310两端***该弹性绝缘载体322的收容空腔325内，再将螺母328旋入该弹性绝缘载体322的螺纹，旋紧后，该弹性绝缘载体322受到挤压与该灯管310的外电极314贴紧，以使得该弹性绝缘载体312内壁的导电涂层316与该外电极314电连接，而该电极引出线317也与该导电涂层316电连接，从而形成一通路。
相较于现有技术，该外电极314通过该弹性绝缘载体322的导电涂层326与电极引出线327电连接，而无需在外电极314上焊接灯管线，且其组装方便快速，仅需将灯管310***弹性绝缘载体322，再旋入螺母328即可，并通过弹性可使得弹性绝缘载体322的导电涂层326与灯管310的外电极314抵接，其接触性较佳，可靠性较高。
请参阅图6，是本实用新型背光模组第二实施方式的弹性绝缘载体的截面放大图。弹性绝缘载体422与第一实施方式的弹性绝缘载体322相似，其区别在于：收容空腔425的直径由灯管***端至筒底一侧逐渐增大。

Claims (10)

1.一种外电极荧光灯，其包括一灯管，该灯管包括一放电管和附着于该放电管端部外表面的外电极，其特征在于：该外电极荧光灯还包括收容灯管端部于其内的灯座，每一灯座包括一绝缘载体和设置在该绝缘载体内的电极引出线，该绝缘载体内壁涂覆有导电涂层，该电极引出线与该导电涂层电连接，该灯管的端部***该绝缘载体内，该灯管的外电极与涂覆于该绝缘载体内壁的导电涂层电连接。
2.如权利要求1所述的外电极荧光灯，其特征在于：该绝缘载体包括一收容部，该收容部包括一用于收容该灯管端部的收容空腔，该导电涂层涂覆于该收容空腔的内壁。
3.如权利要求2所述的外电极荧光灯，其特征在于：该绝缘载体还包括一引出部，该引出部与该收容部相连，该引出部包括一与该收容空腔相连通的收容孔，该电极引出线设置于该收容孔。
4.如权利要求2所述的外电极荧光灯，其特征在于：该收容部是一圆筒结构，其包括一筒壁和一筒底，该筒壁和筒底围成该收容空腔，该外电极与该导电涂层抵接。
5.如权利要求1所述的外电极荧光灯，其特征在于：该绝缘载体是弹性绝缘载体。
6.如权利要求1所述的外电极荧光灯，其特征在于：该外电极荧光灯进一步包括一螺母，该绝缘载体的外表面设置有螺纹，该螺母旋入该螺纹以固定。
7.如权利要求2所述的外电极荧光灯，其特征在于：该收容空腔的直径与该灯管端部的直径相匹配，且该收容空腔的直径自灯管***端向内逐渐增大。
8.如权利要求2所述的外电极荧光灯，其特征在于：该收容空腔的直径与该灯管端部的直径相匹配，且该收容空腔的直径自灯管***端向内保持一致。
9.如权利要求4所述的外电极荧光灯，其特征在于：该筒壁设置有对称分布的四沟槽，该四沟槽自灯管***端向内延伸将收容部分割成四瓣。
10.一种背光模组，其包括至少一外电极荧光灯，其特征在于：该外电极荧光灯是权利要求1至9中任意一权利要求所述的外电极荧光灯。
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CN106500046A (zh) * 2016-09-24 2017-03-15 广州方平电子科技有限公司 灭蚊灯的安装结构
CN112086341A (zh) * 2020-10-09 2020-12-15 江门市正华科技有限公司 一种准分子杀菌灯管及其生产方法、杀菌灯及杀菌灯模组
CN113785238A (zh) * 2019-04-30 2021-12-10 镭亚股份有限公司 具有分叉发射模式的光源、多视图背光体和方法

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TWI246035B (en) 2004-02-06 2005-12-21 Au Optronics Corp Direct backlight module
JP4049802B2 (ja) * 2005-01-07 2008-02-20 シャープ株式会社 冷陰極管ランプ、照明装置及び表示装置
CN101189704B (zh) * 2005-05-31 2010-05-19 松下电器产业株式会社 荧光灯、背光照明单元以及液晶电视
KR20060131242A (ko) * 2005-06-15 2006-12-20 삼성전자주식회사 냉음극 형광램프, 이의 제조 방법, 이를 갖는 백라이트어셈블리 및 액정표시장치
KR20090014303A (ko) * 2006-05-24 2009-02-09 이 아이 듀폰 디 네모아 앤드 캄파니 외부 전극 형광 램프의 형성 방법, 이에 사용되는 후막 전극 조성물, 및 이로부터 형성된 램프 및 ｌｃｄ 장치
KR100853808B1 (ko) * 2007-04-20 2008-08-22 주식회사 아이노바 세라믹-유리질 복합체 전극을 구비한 형광램프

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CN106472457A (zh) * 2016-09-24 2017-03-08 广州方平电子科技有限公司 室外灭蚊灯
CN106489871A (zh) * 2016-09-24 2017-03-15 东莞市安零模具科技有限公司 水帘式诱捕器
CN106500046A (zh) * 2016-09-24 2017-03-15 广州方平电子科技有限公司 灭蚊灯的安装结构
CN113785238A (zh) * 2019-04-30 2021-12-10 镭亚股份有限公司 具有分叉发射模式的光源、多视图背光体和方法
CN112086341A (zh) * 2020-10-09 2020-12-15 江门市正华科技有限公司 一种准分子杀菌灯管及其生产方法、杀菌灯及杀菌灯模组

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