CN102662257A - 一种液晶屏固定结构 - Google Patents
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Abstract
本发明公开了一种液晶屏固定结构,该固定结构包括设置于背板上的折弯结构。本发明的液晶屏固定结构,可以在背板上设置折弯和子折弯,配合支撑结构上的折弯结构,在不引入技术问题的前提下实现了对液晶屏的固定,借此去除胶框,节省了成本。
Description
技术领域
本发明涉及液晶显示技术,特别涉及一种液晶屏固定结构。
背景技术
在目前所应用的液晶屏固定结构中,存在以下应用形式及其所引入的技术问题:
1、导光板含多层空间,省去背板与框架;
在这种情况下,导光板成型复杂,且导光板强度不足,抗振动冲击性能差。
2、背框结构多级冲压成型,省去框架;
在这种情况下,成型难度大。
3、导光板、膜材等多层粘接,薄型化;
在这种情况下,过多使用粘接剂,亮度会降低。
4、将用于取代整个框架的独立承接装置安装在背板上,以支撑液晶屏;
在这种情况下,独立承接装置需要注塑成型,产生额外费用。
发明内容
有鉴于此,本发明的主要目的在于提供一种液晶屏固定结构,在不引入技术问题的前提下实现液晶屏的固定,去除胶框,节省成本。
为达到上述目的,本发明的技术方案是这样实现的:
一种液晶屏固定结构,该固定结构包括设置于背板上的折弯结构。
背板上的所述折弯结构包括折弯,背板的三个边上各设置一该折弯。
所述折弯结构共分为三段,分别为第一折弯,第二折弯和第三折弯,三个折弯组成п型;其中第二折弯分别与第一折弯、第三折弯垂直,第一折弯与第三折弯平行。
背板上的所述折弯结构包括子折弯。
所述子折弯设置于背板上的第二折弯上,且与第二折弯垂直,向上延伸。
还包括设置于背板的支撑结构上的折弯结构;
所述支撑结构包括散热片;支撑结构上的所述折弯结构包括设置于散热片上的折弯。
设置于散热片上的所述折弯包括第一折弯、第二折弯和第三折弯;其中,第一折弯和第三折弯平行,第二折弯垂直于第一折弯和第三折弯,三个折弯组成倾倒的U型,且开口向内侧。
设置于散热片上的第三折弯的长度大于第一折弯,且第三折弯上设有用于固定背板及散热片的螺纹孔;背板的第二折弯与散热片的第一折弯位于同一平面。
支撑结构上的所述折弯结构包括设置于散热片上的子折弯。
散热片上的所述子折弯设置于散热片的第一折弯上,且垂直于第一折弯,向上延伸。
本发明的液晶屏固定结构,可以在背板上设置折弯和子折弯,配合支撑结构上的折弯结构,在不引入技术问题的前提下实现了对液晶屏的固定,借此去除胶框,节省了成本。
附图说明
图1为本发明实施例的整体装配示意图;
图2-1为本发明一实施例的背板示意图;
图2-2为本发明另一实施例的背板局部示意图;
图2-3为本发明再一实施例的背板局部示意图;
图3-1为本发明实施例的背板与散热片的结构示意图;
图3-2为本发明实施例的背板与散热片组装时的局部视图;
图4-1为本发明实施例的外框示意图;
图4-2为本发明实施例的散热片子折弯和外框凹槽的结构示意图;
图5-1为本发明实施例的导光板凸块与背板方形槽的结构示意图;
图5-2a为本发明实施例的导光板与背板侧边的子折弯的结构示意图;
图5-2b为本发明实施例的导光板与背板侧边的子折弯的结构示意图;
图5-3a为本发明实施例的导光板与背板侧边的子折弯的结构示意图;
图5-3b为本发明实施例的导光板与散热片的定位柱的结构示意图;
图6-1为本发明实施例的膜材与背板的方形槽的结构示意图;
图6-2为本发明实施例的膜材与背板的第一折弯的膜材定位点的结构示意图;
图6-3为本发明实施例的膜材与散热片的第一折弯限位的结构示意图;
附图标记说明:
1:外框;1-1:顶面;1-2:四侧折弯;1-3:缓冲垫;1-1-1:矩形孔;1-1-2:凹槽;1-2-1:凹槽孔;
2:液晶屏;3:光学膜材;3-2:膜材凸块;
4:导光板;4-1:凹槽;4-2:凸块;
5:底反射片;
6:背板;6-1:底板;6-2:侧边组;6-3:缓冲垫;6-4:缓冲垫;6-1-1:加强筋;6-1-2:孔;6-2-1:折弯;6-2-1-1:方形槽;6-2-1-2:子折弯;
6-2-1-3:背板第一折弯膜材定位点;6-2-2:折弯;6-2-3:折弯;6-2-2-1:子折弯;
7:散热片;7-1:折弯;7-2:折弯;7-3:折弯;7-1-1:子折弯;
7-2-1:螺纹孔;7-3-1:定位柱;
8:LED灯条;
9-1:螺钉;9-2:螺钉。
具体实施方式
在实际应用中,可以在背板上设置折弯和子折弯,配合散热片上的折弯结构,实现对液晶屏的固定,借此去除胶框,以节省成本。
以图1为例,图1中的侧光式LED背光液晶模块包括外框1、液晶屏2、光学膜材3、导光板4、底反射片5、背板6、散热片7、LED灯条8、螺钉9-1、9-2等。LED灯条8固定在散热片7上,可以是粘接或螺钉连接,或是二者结合以进行固定。固定LED灯条8的散热片7,通过螺钉9-1将散热片7和背板6连接在一起。外框1和背板6通过螺钉9-2连接在一起。+Z方向是显示方向,模块中心位置在几何中心,远离中心的位置为外侧,紧靠中心的位置为内侧。
液晶屏2的平面定位(XY)
背板6可以包括底板6-1。底板6-1为矩形,矩形的上边缘、左边缘、右边缘分别设置有侧边组6-2,如图2-1所示。如图2-2和图2-3所示,侧边组6-2包括3个折弯:折弯6-2-1、折弯6-2-2和折弯6-2-3;折弯6-2-2分别与折弯6-2-1和折弯6-2-3垂直相连,上述3个折弯的开口方向与显示方向相反。其中折弯6-2-2上设有复数个子折弯6-2-2-1。单面带胶的缓冲垫6-4直接粘接在子折弯6-2-2-1内侧。在平面定位时,液晶屏2的周边紧靠着缓冲垫6-4,在“+X”、“-X”、“-Y”等3个方向上实现定位。在没有侧边组的一侧,设有加强筋6-1-1以增强整个结构的平整性。
如图3-1和图3-2所示,散热片7包括3个折弯:折弯7-1、折弯7-2和折弯7-3,其中折弯7-1与折弯7-3的延伸方向相同,且都与折弯7-2相连接,折弯7-3上设置螺纹孔,以便使用螺钉9-1从背板6的底部向上固定散热片7。子折弯7-1-1位于折弯7-1上并且垂直于7-1。单面带胶的缓冲垫6-4直接粘接在子折弯7-1-1内侧。在平面定位时,液晶屏2的周边紧靠着子折弯7-1-1上的缓冲垫6-4,实现了液晶屏2在“+Y”方向上的定位。
液晶屏2的上下定位(Z)
如图3-2所示,背板6的折弯6-2-2与散热片7的折弯7-1组成一个平面,液晶屏2便放置在该平面上,且液晶屏2与该平面之间放置缓冲垫6-3。这样就实现了液晶屏2在-Z方向的定位。
如图4-1所示,外框1包括顶面1-1,四侧折弯1-2和缓冲垫1-3,其中顶面1-1的中心开有矩形孔1-1-1,该矩形孔1-1-1为模块的可视区域。顶面1-1靠近四侧折弯1-2的位置,冲压出复数个凹槽1-1-2。四侧折弯1-2与顶面1-1垂直,延伸方向为-Z。缓冲垫1-3粘贴在顶面1-1下侧(-Z方向),缓冲垫1-3与液晶屏2的上表面之间设置有间隙,如图4-2所示。
特别地,如图4-2所示,凹槽1-1-2与背板6上的子折弯6-2-2-1和散热片7上的子折弯7-1-1的位置都一一对应,凹槽1-1-2的内侧靠着上述子折弯7-1-1的外侧,并且中间留有适当缝隙。这样,在振动时,外框1上的凹槽结构可以加强背板6和散热片7上的子折弯的强度,避免子折弯被挤压变形。外框1与散热片6通过螺钉9-2连接在一起,实现了液晶屏2在+Z和-Z方向上的定位。
导光板4的定位(XYZ)
如图5-1所示,导光板4的安装方式为沿着-Y方向,插入背板之中。
如图5-1、图5-2所示,背板-Y方向的折弯6-2-1上开有若干方形槽6-2-1-1,背板+X、-X方向的折弯6-2-1上设有复数个90度子折弯6-2-1-2,该子折弯6-2-1-2垂直于折弯6-2-1,且向显示中心延伸。这样,-Y方向的方形槽6-2-1-1和+X、-X方向的子折弯6-2-1-2之间就形成了一个+Y方向上开孔的空腔,可以将导光板4沿着-Y方向插入该空腔。导光板4的+X、-X方向的边缘以及中心位置分别设有凹槽4-1、凸块4-2。
导光板4的凸块4-2沿着-Y方向伸入方形槽6-2-1。散热片7的折弯7-3的中心处设有定位柱7-3-1,该定位柱7-3-1与导光板4的凹槽4-1接触,实现导光板4在+X、-X、+Y、-Y等方向上的定位。导光板4插入背板6之后,再将散热片7插入导光板4,散热片7的折弯7-3与背板6的子折弯6-2-1-2以及方形槽6-2-1-1等也实现了导光板在Z方向的定位。用螺钉9-1将散热片7和背板6固定在一起。
膜材3与底反射片6的定位(XYZ)
如图6-1所示,膜材3的定位点可以为:背板6的折弯、背板6的方形槽6-2-1-1、散热片7的折弯等)。
最后,需要说明的是,以上描述中均以在散热片上设置折弯结构为例。实际上,也可以在除散热片以外的背板上的其它支撑结构上设置折弯结构,以配合背板上所设置的折弯结构实现对液晶屏的固定。
综上所述可见,本发明的液晶屏固定结构,可以在背板上设置折弯和子折弯,配合支撑结构上的折弯结构,在不引入技术问题的前提下实现了对液晶屏的固定,借此去除胶框,节省了成本。
以上所述,仅为本发明的较佳实施例而已,并非用于限定本发明的保护范围。
Claims (10)
1.一种液晶屏固定结构,其特征在于,该固定结构包括设置于背板上的折弯结构。
2.根据权利要求1所述的液晶屏固定结构,其特征在于,背板上的所述折弯结构包括折弯,背板的三个边上各设置一该折弯。
3.根据权利要求2所述的液晶屏固定结构,其特征在于,所述折弯结构共分为三段,分别为第一折弯,第二折弯和第三折弯,三个折弯组成п型;其中第二折弯分别与第一折弯、第三折弯垂直,第一折弯与第三折弯平行。
4.根据权利要求1至3任一项所述的液晶屏固定结构,其特征在于,背板上的所述折弯结构包括子折弯。
5.根据权利要求4所述的液晶屏固定结构,其特征在于,所述子折弯设置于背板上的第二折弯上,且与第二折弯垂直,向上延伸。
6.根据权利要求1所述的液晶屏固定结构,其特征在于,还包括设置于背板的支撑结构上的折弯结构;
所述支撑结构包括散热片;支撑结构上的所述折弯结构包括设置于散热片上的折弯。
7.根据权利要求6所述的液晶屏固定结构,其特征在于,设置于散热片上的所述折弯包括第一折弯、第二折弯和第三折弯;其中,第一折弯和第三折弯平行,第二折弯垂直于第一折弯和第三折弯,三个折弯组成倾倒的U型,且开口向内侧。
8.根据权利要求7所述的液晶屏固定结构,其特征在于,设置于散热片上的第三折弯的长度大于第一折弯,且第三折弯上设有用于固定背板及散热片的螺纹孔;背板的第二折弯与散热片的第一折弯位于同一平面。
9.根据权利要求7或8所述的液晶屏固定结构,其特征在于,支撑结构上的所述折弯结构包括设置于散热片上的子折弯。
10.根据权利要求9所述的液晶屏固定结构,其特征在于,散热片上的所述子折弯设置于散热片的第一折弯上,且垂直于第一折弯,向上延伸。
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WO2013152594A1 (zh) * | 2012-04-11 | 2013-10-17 | 京东方科技集团股份有限公司 | 液晶显示装置 |
CN107463027A (zh) * | 2017-08-29 | 2017-12-12 | 广州创维平面显示科技有限公司 | 一种侧入式显示设备 |
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CN101382674A (zh) * | 2008-10-09 | 2009-03-11 | 友达光电(苏州)有限公司 | 液晶显示装置 |
CN201636705U (zh) * | 2010-05-06 | 2010-11-17 | 北京京东方光电科技有限公司 | 背光模组和液晶显示模组 |
CN201672466U (zh) * | 2010-05-13 | 2010-12-15 | 康佳集团股份有限公司 | 一种金属背板 |
CN102096218A (zh) * | 2010-12-02 | 2011-06-15 | 深圳市华星光电技术有限公司 | 液晶显示模块及其一体成型背板 |
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CN102843536A (zh) * | 2012-09-20 | 2012-12-26 | 苏州胜利精密制造科技股份有限公司 | 液晶电视装配结构 |
CN102843536B (zh) * | 2012-09-20 | 2015-04-08 | 苏州胜利精密制造科技股份有限公司 | 液晶电视装配结构 |
CN107463027A (zh) * | 2017-08-29 | 2017-12-12 | 广州创维平面显示科技有限公司 | 一种侧入式显示设备 |
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