CN104019403A - 发光二极管、背光模组、液晶显示器、照明装置 - Google Patents

发光二极管、背光模组、液晶显示器、照明装置 Download PDF

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CN104019403A
CN104019403A CN201410221693.7A CN201410221693A CN104019403A CN 104019403 A CN104019403 A CN 104019403A CN 201410221693 A CN201410221693 A CN 201410221693A CN 104019403 A CN104019403 A CN 104019403A
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mounting groove
light emitting
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led chip
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王涛
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BOE Technology Group Co Ltd
BOE Optical Science and Technology Co Ltd
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BOE Optical Science and Technology Co Ltd
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Abstract

本发明涉及LED发光技术领域，公开一种发光二极管LED、背光模组、液晶显示器、照明装置。所述LED包括灯座以及至少一对LED芯片，所述灯座具有安装槽，一对LED芯片安装于所述安装槽槽内底面且一对所述LED芯片中的两个芯片沿所述安装槽的轴心线对称设置，两个所述LED芯片的出光面所在平面相交形成的角度中，朝向所述安装槽底面的角度大于0度且小于180度。上述发光二极管LED具有较大的出光角，且结构简单。

Description

发光二极管、背光模组、液晶显示器、照明装置
技术领域
本发明涉及LED发光技术领域，特别涉及一种发光二极管LED、背光模组、液晶显示器、照明装置。
背景技术
目前主流增大LED出光角的方法是在LED表面加透镜，专利是日本N plus的。LED表面加透镜的方法可以扩大出光角度，且能保证光强均匀分布，但是，此种方法需要使用透镜，结构复杂。
发明内容
本发明提供了一种发光二极管LED、背光模组、液晶显示器、照明装置，其中，LED的出光角度较大并且结构简单。
为达到上述目的，本发明提供以下技术方案：
一种发光二极管LED，包括：
灯座；所述灯座具有安装槽；
至少一对LED芯片；每一对所述LED芯片安装于所述安装槽的底面，每一对所述LED芯片中，两个LED芯片沿所述安装槽的轴心线对称设置，两个所述LED芯片的出光面所在平面相交形成的角度中，朝向所述安装槽底面的角度大于0度且小于180度。
上述LED中，由于灯座安装槽的底面安装有至少一对LED芯片，且每一对LED芯片中，两个LED芯片沿安装槽的轴心线对称设置，并且，两个LED芯片的出光面所在平面相交形成的角度中，朝向安装槽底面的角度大于0度且小于180度，所以，每一个LED芯片的发光范围向远离另一个LED芯片的方向偏转，从而使整个发光二极管LED的出光角扩大。
因此，上述发光二极管无需使用透镜即可扩大其出光角度，结构简单。
较佳的实施例中，朝向所述安装槽底面的角度大于120度且小于180度，保证一对LED芯片中的两个LED芯片的发光范围有交集，此时，即使在安装槽底面只安装有一对LED芯片，本发明所述的发光二极管LED的发光范围内也不会出现暗区。
较佳的实施例中，所述安装槽的底面设有基座，每一个所述LED芯片安装于基座上。
较佳的实施例中，所述安装槽的侧面呈锥面结构；
所述安装槽的底面呈凸向所述安装槽开口方向的凸面结构，且所述安装槽底面所呈的凸面结构的轴心线与所述安装槽侧面所呈的锥面结构的轴心线重合，由于两个LED芯片沿安装槽的轴心线对称设置，所以保证了LED出光的均匀性；其中，
所述安装槽的底面呈类球面；或者，
所述安装槽的底面为多个小平面拼接而成的凸面。
较佳的实施例中，所述安装槽的底面为平面，所述基座的横截面具有楔形结构。
较佳的实施例中，所述安装槽的底面还设有金属接头，所述基座内设有金属走线，每一个所述LED芯片的一个电极通过金属线与所述金属接头电连接，另一个电极通过金属线与所述基座内的金属走线电连接。
较佳的实施例中，所述的发光二极管LED还包括：封装胶，所述封装胶覆盖整个灯座安装槽的开口面，所述封装胶的表面呈外凸弧形，外凸高度小于等于LED芯片厚度的两倍。
本发明还提供一种背光模组，包括光源，所述光源包括上述技术方案中提供的任意一种发光二极管LED。
本发明还提供一种液晶显示器，所述液晶显示器包括上述技术方案中提供的背光模组。
本发明还提供一种照明装置，包括上述技术方案中提供的任意一种发光二极管LED。
附图说明
图1为本发明一种实施例提供的发光二极管LED的结构示意图；
图2为本发明另一种实施例提供的发光二极管LED的结构示意图；
图3为本发明另一种实施例提供的发光二极管LED的结构示意图；
图4为本发明发光二极管LED的光强与角度的关系图；
图5为普通发光二极管LED的光强与角度的关系图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参考图1和图2，其中，图1为本发明一种实施例提供的发光二极管LED的结构示意图；图2为本发明另一种实施例提供的发光二极管LED的结构示意图。
如图1所示，本发明实施例提供的发光二极管LED，包括：
灯座1，所述灯座1具有安装槽；
如图2所示，至少一对LED芯片3，如图2中所示的LED芯片31和LED芯片32，每一对LED芯片3安装于灯座1具有的安装槽的底面，且每一对LED芯片3中，两个LED芯片沿安装槽的轴心线b对称设置，以图2中所示的LED芯片31和LED芯片32为例，LED芯片31和LED芯片32沿安装槽的轴心线b对称设置，并且LED芯片31的出光面所在平面与LED芯片32的出光面所在平面相交形成的角度中，朝向安装槽底面的角度α大于0度且小于180度。
如图4和图5所示，图4为本发明发光二极管LED的光强与角度的关系图，图5为普通发光二极管LED的光强与角度的关系图。
图4和图5中右侧的部分为光强图，所示光的亮度从上到下越来越低，一般情况下，发光二极管LED的出光角度是指发光体发光的边缘亮度衰减至中心亮度的80％时的发光边缘所成的角度，从图4和图5可看出，本发明的发光二极管LED的发光角度明显大于现有技术中发光二极管LED的发光角度。
上述LED中，以图2所示的一对LED芯片3为例，一对LED芯片3中，LED芯片31和LED芯片32沿安装槽的轴心线b对称设置，并且，LED芯片31和LED芯片32的出光面所在平面相交形成的角度中，朝向安装槽底面的角度α大于0度且小于180度，所以，LED芯片31和LED芯片32的发光范围向相互远离对方发光范围的方向偏转，从而使整个发光二极管LED的出光角扩大。
继续以LED芯片31和LED芯片32为例，设定LED芯片31和LED芯片32出光面的出光角度均为120度，当安装槽的侧面对LED芯片31以及LED芯片32发出的光线没有遮挡时，当上述角度α为155度时，发光二极管LED的出光角度为145度，相比普通结构的发光二极管LED而言，出光角度扩大了25度。
因此，上述发光二极管LED无需使用透镜即可扩大其出光角度，结构简单。
一种实施例中，角度α大于120度且小于180度，设定LED芯片的出光角度为120度，则保证了LED芯片31和LED芯片32的发光范围有交集，此时，即使在安装槽底面只安装有一对LED芯片3，在发光二极管LED的发光范围内，也不会出现暗区。
一种实施例中，安装槽的底面设有基座，每一个LED芯片安装于基座上。如图1和图2中所示，安装槽的底面设有基座21以及基座22，LED芯片31安装在基座21上，LED芯片32安装于基座22上。
在上述实施例的基础上，继续参考图2，所述安装槽的侧面呈锥面结构，LED芯片31的出光面所在平面与LED芯片32的出光面所在平面相交形成的角度中，朝向安装槽底面的角度α大于0度且小于180度，具体可以通过下述方式实现：
方式一，如图1所示，灯座1中安装槽的底面呈凸向安装槽开口方向的凸面结构，且安装槽底面所呈的凸面结构的轴心线与安装槽侧面所呈的锥面结构的轴心线重合，因此安装槽的底面所呈凸面结构的轴心线与安装槽的轴心线b重合，由于LED芯片31和LED芯片32沿安装槽的轴心线b对称设置，因此，LED芯片31和LED芯片32对称安装在底面所呈凸面结构的轴心线两侧，使LED芯片31和LED芯片32的出光面形成了上述α角，并且保证了LED出光的均匀性。
方式二，如图2所示，灯座1中安装槽的底面为平面，基座的横截面具有楔形结构。如图2所示，基座21和基座22的横截面具有楔形结构，LED芯片31安装在基座21上，LED芯片32安装在基座22上，通过基座21与基座22的设置位置使上述LED芯片31的出光面与LED芯片32的出光面之间的角度α大于0度且小于180度。
一种实施例中，在上述方式一的基础上，安装槽的底面呈凸向安装槽开口方向的凸面结构时：
安装槽的底面呈类球面结构；或者，
安装槽的底面为由多个小平面拼接而成的凸面结构。
当然，上述安装槽的底面还可以具有其他结构，这里不再赘述。
如图1所示，在上述各实施例的基础上，当安装槽的底面设有基座时，继续以图1所示的基座21和基座22为例，当安装槽的底面设有基座21和基座22时，安装槽的底面还设有金属接头4，基座21和基座22内均设有金属走线，LED芯片31的一个电极通过金属线51与金属接头4电连接，另一个电极通过金属线52与基座21内的金属走线电连接；LED芯片32的一个电极通过金属线53与金属接头4电连接，另一个电极通过金属线54与基座22内的金属走线电连接。
请参考图3，图3为本发明另一种实施例提供的发光二极管LED的结构示意图。
在上述各实施例的基础上，一种实施例中，发光二极管LED还包括：封装胶6，封装胶6覆盖整个灯座安装槽的开口面。
特别地，封装胶6表面呈外凸弧形，外凸高度小于等于LED芯片3厚度的两倍，此结构使得出射光更加均匀。
本发明实施例提供一种背光模组，包括上述的发光二极管LED。上述发光二极管LED用于直下式背光模组，可取消透镜的使用，降低物料成本；用于侧光式背光模组，能够解决萤火虫问题，进而设计出更窄边框的产品。
本发明实施例提供一种液晶显示器，包括上述的背光模组。
本发明实施例提供一种照明装置，包括上述的发光二极管LED，此种照明装置的照明角度很大。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (10)

1.一种发光二极管LED，其特征在于，包括：
灯座，所述灯座具有安装槽；
至少一对LED芯片，每一对所述LED芯片安装于所述安装槽的底面，每一对所述LED芯片中，两个LED芯片沿所述安装槽的轴心线对称设置，两个所述LED芯片的出光面所在平面相交形成的角度中，朝向所述安装槽底面的角度大于0度且小于180度。
2.根据权利要求1所述的LED，其特征在于，所述朝向所述安装槽底面的角度大于120度且小于180度。
3.根据权利要求1所述的LED，其特征在于，所述安装槽的底面设有基座，每一个所述LED芯片安装于基座上。
4.根据权利要求3所述的LED，其特征在于，
所述安装槽的侧面呈锥面结构；
所述安装槽的底面呈凸向所述安装槽开口方向的凸面结构，且所述安装槽底面所呈的凸面结构的轴心线与所述安装槽侧面所呈的锥面结构的轴心线重合；或者，
所述安装槽的底面为平面，所述基座的横截面具有楔形结构。
5.根据权利要求4所述的LED，其特征在于，当所述安装槽的底面呈凸向所述安装槽开口方向的凸面结构时，
所述安装槽的底面呈类球面结构；或者，
所述安装槽的底面为多个小平面拼接而成的凸面结构。
6.根据权利要求3～5任一项所述的LED，其特征在于，所述安装槽的底面还设有金属接头，所述基座内设有金属走线，每一个所述LED芯片的一个电极通过金属线与所述金属接头电连接，另一个电极通过金属线与所述基座内的金属走线电连接。
7.根据权利要求1～5任一项所述的LED，其特征在于，还包括封装胶，所述封装胶覆盖整个灯座安装槽的开口面，所述封框胶的表面呈外凸弧形，外凸高度小于等于LED芯片厚度的两倍。
8.一种背光模组，包括光源，其特征在于，所述光源包括权利要求1～7任一项所述的发光二极管LED。
9.一种液晶显示器，其特征在于，所述液晶显示器包括权利要求8所述的背光模组。
10.一种照明装置，其特征在于，包括权利要求1～7任一项所述的发光二极管LED。
CN201410221693.7A 2014-05-23 2014-05-23 发光二极管、背光模组、液晶显示器、照明装置 Pending CN104019403A (zh)

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