CN106646725A - 一种侧入式背光模组及液晶电视 - Google Patents

一种侧入式背光模组及液晶电视 Download PDF

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CN106646725A
CN106646725A CN201710100241.7A CN201710100241A CN106646725A CN 106646725 A CN106646725 A CN 106646725A CN 201710100241 A CN201710100241 A CN 201710100241A CN 106646725 A CN106646725 A CN 106646725A
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groove
light guide
guide plate
entrance back
back module
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林伟瀚
杨梅慧
杨鑫
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Konka Group Co Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
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    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
    • G—PHYSICS
    • G02—OPTICS
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    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
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    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
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    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
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    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
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    • 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
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    • 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
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    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • 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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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    • 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
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Abstract

本发明公开一种侧入式背光模组及液晶电视，所述背光模组包括设置在灯条板上的LED灯以及导光板，其中，所述导光板入光侧设置有第一凹槽，所述LED灯位于所述第一凹槽内部，并且所述导光板入光侧紧贴在所述灯条板表面。本发明有效解决了现有技术中在导光板与LED灯之间设置预留空隙导致光损严重的问题；同时还有效降低了背光模组的厚度，从而有效促进液晶电视往超薄方向发展。

Description

一种侧入式背光模组及液晶电视
技术领域
本发明涉及背光模组领域，尤其涉及的是一种侧入式背光模组及液晶电视。
背景技术
随着LED灯技术的发展以及市场对环保节能的需求趋于明显，LED光源的背光模组已经成为近两年的研究主流；LED光源的背光模组具有节能、环保、低功耗等优点，现有市场LED液晶电视占比已迅速加大。目前的LED液晶电视背光模组的光源入光方式有侧入式和直下式两种，由于受背光腔体厚度的限制，超薄机型基本为侧入式入光机型；侧入式LED光源是点光源，为了将点光源变成线光源及面光源，侧入式背光需要使用导光板。
然而，由于导光板受热会发生膨胀，现有的背光模组需要在LED灯表面到导光板入光面之间预留一定的空隙，并通过支架维持这个空隙；该空隙的存在，导致光源到导光板的耦合效果变差，并且空隙越大，光损越严重；同时空隙的存在还制约了电视机往超薄方向的发展。
因此，现有技术尚有待改进和发展。
发明内容
鉴于上述现有技术的不足，本发明的目的在于提供一种侧入式背光模组及液晶电视，旨在解决现有技术中的背光模组光源利用率低以及背光模组过厚制约电视往超薄方向发展的问题。
本发明的技术方案如下：
一种侧入式背光模组，包括设置在灯条板上的LED灯以及导光板，其中，所述导光板入光侧设置有第一凹槽，所述LED灯位于所述第一凹槽内部，并且所述导光板入光侧紧贴在所述灯条板表面。
较佳地，所述的侧入式背光模组，其中，所述背光模组还包括一散热片，所述散热片设置有第二凹槽，所述灯条板和所述导光板入光侧依次设置在所述第二凹槽的底部。
较佳地，所述的侧入式背光模组，其中，所述第二凹槽的上边缘与所述导光板之间设置有垫条。
较佳地，所述的侧入式背光模组，其中，所述第二凹槽的下边缘所述导光板之间设置有反射片。
较佳地，所述的侧入式背光模组，其中，所述第一凹槽设置为横向通槽。
较佳地，所述的侧入式背光模组，其中，所述第一凹槽设置为四周封闭的凹槽。
较佳地，所述的侧入式背光模组，其中，在所述导光板入光侧与所述灯条板的接触面上设置光学胶。
较佳地，所述的侧入式背光模组，其中，所述LED灯为量子点LED灯。
较佳地，所述的侧入式背光模组，其中，所述散热片的材料为铜或铝合金的一种。
一种液晶电视，其中，包括如上所述任意一项侧入式背光模组。
有益效果：本发明提供的侧入式背光模组，通过在导光板入光侧设置第一凹槽，并将LED灯设置在所述第一凹槽内，有效解决了现有技术中在导光板与LED灯之间设置预留空隙导致光损严重的问题；同时，由于LED灯位于第一凹槽内部，并且所述导光板紧贴在所述灯条板表面，有效降低了背光模组的厚度，从而有效促进液晶电视往超薄方向发展。
附图说明
图1为本发明一种侧入式背光模组较佳实施例的剖面结构示意图；
图2为本发明中第一凹槽的第一结构示意图；
图3为本发明中第一凹槽的第二结构示意图。
具体实施方式
本发明提供一种侧入式背光模组及液晶电视，为使本发明的目的、技术方案及效果更加清楚、明确，以下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。
请参阅图1，图1为本发明一种侧入式背光模组较佳实施例的剖面结构示意图，如图所示，包括设置在灯条板10上的LED灯20以及导光板30，其中，所述导光板30入光侧设置有第一凹槽31，所述LED灯20位于所述第一凹槽31内部，并且所述导光板30入光侧紧贴在所述灯条板10表面。
具体地，本发明通过在导光板30入光侧设置第一凹槽31，并将所述LED灯20设置在所述第一凹槽31内部，有效解决了现有技术中在导光板与LED灯之间设置预留空隙导致光损严重的问题；同时，由于LED灯位于第一凹槽内部，并且所述导光板紧贴在所述灯条板表面，可有效降低背光模组的厚度，从而有效促进液晶电视往超薄方向发展。
进一步，如图1所示，在本发明中，所述背光模组还包括一散热片40，所述散热片40设置有第二凹槽41，所述灯条板10和所述导光板30入光侧依次设置在所述第二凹槽41的底部。
具体来说，所述散热片主要用于固定背光模组的各个组件，所述散热片40设置有第二凹槽41，所述第二凹槽的开口宽度要大于灯条板的高度，同时也要大于导光板的高度，以便于将所述灯条板和导光板依次设置在所述第二凹槽41的底部；
较佳地，先将所述灯条板固定在所述第二凹槽底部，之后将所述导光板入光侧插入到所述第二凹槽直到与所述灯条板接触，调整位置，使灯条板上的LED灯位于所述导光板入光侧的第一凹槽内。
本发明通过在所述散热片上设置第二凹槽，并将各组件设置在所述第二凹槽内部，既起到了固定各组件的作用，同时由于减少了中框支架结构件，使得背光模组的厚度进一步减薄，从而促进液晶电视往超薄方向发展。
较佳地，所述散热片的材料为铜或铝合金，本发明优选铝合金，因为铝合金的导热性强，易于散热，同时铝合金材质较轻且强度较高，非常适合用作散热材料。
进一步，如图1所示，由于所述第二凹槽的开口宽度大于所述导光板的高度，因此当所述导光板入光侧插入到所述第二凹槽内部后，所述第二凹槽与所述导光板之间会有缝隙；为了避免出现漏光现象，本发明在所述第二凹槽的上边缘与所述导光板之间设置垫条50；同时在所述第二凹槽的下边缘与所述导光板之间设置反射片60。
进一步，在本发明中，所述第一凹槽可设置为横向通槽311（如图2所示）或四周封闭的凹槽312（如图3所示）。
现如今，高色域显示已经成为高端超薄机型的标配，高色域背光可通过采用量子点LED灯来实现，然而却因为量子点粉对潮气的敏感特性而一直没有得到实际应用；如图1所示，为了避免量子点粉接触到潮气，本发明选择四周封闭的第一凹槽将所述LED灯包覆在其内部，所述LED灯为量子点LED灯，同时在所述导光板入光侧与所述灯条板的接触面上设置光学胶70，从而将量子点LED灯密封在所述第一凹槽内部，充分满足了量子点LED灯对潮气的隔离作用；本发明通过采用量子点LED灯作为光源，并将所述量子点LED灯与外部潮气进行充分隔离，有效提高了背光模组的色域。
进一步，本发明还提供一种液晶电视，其包括如上所述任意一项侧入式背光模组。
综上所述，本发明提供的侧入式背光模组，通过在导光板入光侧设置第一凹槽，并将LED灯设置在所述第一凹槽内，有效解决了现有技术中在导光板与LED灯之间设置预留空隙导致光损严重的问题；同时，由于LED灯位于第一凹槽内部，并且所述导光板紧贴在所述灯条板表面，有效降低了背光模组的厚度，从而有效促进液晶电视往超薄方向发展；更进一步，通过采用量子点LED灯作为光源，并将所述量子点LED灯与外部潮气进行充分隔离，有效提高了背光模组的色域。
应当理解的是，本发明的应用不限于上述的举例，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，所有这些改进和变换都应属于本发明所附权利要求的保护范围。

Claims (10)

1.一种侧入式背光模组，包括设置在灯条板上的LED灯以及导光板，其特征在于，所述导光板入光侧设置有第一凹槽，所述LED灯位于所述第一凹槽内部，并且所述导光板入光侧与所述灯条板表面相接触。
2.根据权利要求1所述的侧入式背光模组，其特征在于，所述背光模组还包括一散热片，所述散热片设置有第二凹槽，所述灯条板和所述导光板入光侧依次设置在所述第二凹槽的底部。
3.根据权利要求2所述的侧入式背光模组，其特征在于，所述第二凹槽的上边缘与所述导光板之间设置有垫条。
4.根据权利要求2所述的侧入式背光模组，其特征在于，所述第二凹槽的下边缘所述导光板之间设置有反射片。
5.根据权利要求1所述的侧入式背光模组，其特征在于，所述第一凹槽设置为横向通槽。
6.根据权利要求1所述的侧入式背光模组，其特征在于，所述第一凹槽设置为四周封闭的凹槽。
7.根据权利要求6所述的侧入式背光模组，其特征在于，所述LED灯为量子点LED灯。
8.根据权利要求7所述的侧入式背光模组，其特征在于，在所述导光板入光侧与所述灯条板的接触面上设置光学胶。
9.根据权利要求2所述的侧入式背光模组，其特征在于，所述散热片的材料为铜或铝合金的一种。
10.一种液晶电视，其特征在于，包括如权利要求1-9任意一项所述的侧入式背光模组。
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