CN104238176B - 一种液晶模组及其散热结构 - Google Patents

一种液晶模组及其散热结构 Download PDF

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CN104238176B
CN104238176B CN201410537870.2A CN201410537870A CN104238176B CN 104238176 B CN104238176 B CN 104238176B CN 201410537870 A CN201410537870 A CN 201410537870A CN 104238176 B CN104238176 B CN 104238176B
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CN104238176A (zh
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李德华
萧宇均
陈仕祥
丘永元
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Abstract

本发明公开了一种液晶模组的散热结构，包括：具有电路部分的灯条组件，灯条组件包括折弯形成互相垂直的竖直板和水平板，所述竖直板内表面固定有多个LED光源模组；背板，所述水平板固定于所述背板上。本发明提供的液晶模组及其散热结构，通过设置成弯折的灯条组件与背板连接，相比现有技术的液晶模组边框更窄、散热效率更高，有利于提高液晶模组的使用寿命。

Description

一种液晶模组及其散热结构
技术领域
本发明涉及液晶显示领域,尤其涉及一种液晶模组及其散热结构。
背景技术
随着显示技术的发展，显示装置已由最初的阴极射线管发展到如今的平面显示器。目前最常用的显示装置为液晶显示器(即LCD)，由于液晶显示器本身不发光，所以一般采用若干个LED(发光二极管)组成LED灯条组件作为背光源应用于液晶显示器中，但是，由于LED数量众多，LED灯条组件的散热量很大，如何解决这一问题尤为重要。
如图1所示，为市面上的一种液晶模组，包括前框1、胶框2、液晶玻璃3、光学部材4、LED灯条组件5和背板6，其中，光学部材4包括导光板和光学膜片等，该方案将LED灯条组件5固定在折弯的背板6上，由于LED主要通过灯条组件5与背板6接触散热，散热效率较低，不利于提高液晶模组使用寿命；同时，由于背板6本身折弯后形成液晶模组的挡墙，LED灯条组件5固定在该挡墙上，增大了液晶模组的厚度。
发明内容
本发明所要解决的技术问题在于提供一种散热效率高、小边框的液晶模组及其散热结构。
为了实现上述目的，本发明采用了如下的技术方案：
一种液晶模组的散热结构，包括：具有电路部分的灯条组件，包括折弯形成的互相垂直的竖直板和水平板，所述竖直板内表面固定有多个LED光源模组；背板，所述水平板固定于所述背板上。
优选地，所述散热结构还包括散热板，所述散热板固定于所述水平板上表面。
优选地，所述散热板为金属材料。
优选地，所述散热板与所述水平板之间具有导热绝缘层。
优选地，所述导热绝缘层为导热绝缘胶，所述导热绝缘层贴付于所述散热板下表面。
或者，所述水平板上设有凹槽，所述散热板上设有拱起的凸台，所述凸台位于所述凹槽内，且所述凸台与所述凹槽上分别开设第一通孔和第二通孔，固定件依次穿过所述第一通孔和所述第二通孔与背板螺纹连接。
本发明还提供了一种液晶模组，包括前框、胶框、液晶玻璃、光学部材、灯条组件和背板，其中，灯条组件包括电路部分和折弯形成的互相垂直的竖直板和水平板，所述竖直板内表面固定有多个LED光源模组，所述水平板固定于所述背板上；所述胶框具有卡口，所述竖直板卡设于所述卡口内。
优选地，所述液晶模组还包括散热板，所述散热板固定于所述水平板上表面。
优选地，所述散热板与所述水平板之间具有导热绝缘层。
优选地，所述水平板上设有凹槽，所述散热板上设有拱起的凸台，所述凸台位于所述凹槽内，且所述凸台与所述凹槽上分别开设第一通孔和第二通孔，固定件依次穿过所述第一通孔和所述第二通孔与背板螺纹连接。
本发明提供的液晶模组及其散热结构，通过设置成弯折的灯条组件与背板连接，相比现有技术的液晶模组边框更窄、散热效率更高，有利于提高液晶模组的使用寿命。
附图说明
图1为现有技术的液晶模组结构示意图。
图2为本发明实施例1的液晶模组结构示意图。
图3为本发明实施例1的灯条组件结构示意图。
图4为本发明实施例1的灯条组件散热结构示意图。
图5为本发明实施例1的灯条组件散热结构装配冶具。
图6为本发明实施例2的灯条组件散热结构示意图。
具体实施方式
为了便于理解本发明，下面将结合附图用实施例对本发明做进一步说明。
实施例1
参阅图2，本发明实施例1的液晶模组中，液晶模组包括前框10、胶框20、液晶玻璃30、光学部材40、灯条组件50和背板70，其中散热结构包括灯条组件50和背板70，灯条组件50具有电路部分，灯条组件50折弯形成互相垂直的竖直板50a和水平板50b，竖直板50a内表面固定有多个LED光源模组50c，水平板50b固定于背板70上。其中，胶框20具有卡口20a，竖直板50a端部卡设于卡口20a内。前框10和胶框20对光学部材40和液晶玻璃30等进行固定。
灯条组件50的水平板50b固定于背板70上，使水平板50b的下表面与金属背板70紧密贴合，带走一部分LED光源模组50c及电路部分产生的热量，保证了灯条组件50的散热效率，提高了液晶模组的使用寿命。
结合图3，为本发明实施例1的灯条组件结构示意图，折弯后的灯条组件50的竖直板50a可直接作为背板挡墙，LED光源模组50c均匀排列于灯条组件50的长度方向，同时，LED光源模组50c的电路部分(图未示)及IC(集成电路)芯片50d一体形成于灯条组件50上，相比于以往的结构，省略了背板挡墙的厚度以及LED光源模组50c的安装厚度，从而能够使液晶模组的边框更窄。
其中，散热结构还包括散热板60，散热板60固定于灯条组件50的水平板50b上表面，与灯条组件50紧密接触，从而从灯条组件50的水平板50b上表面带走灯条组件50的部分热量。灯条组件50的水平板50b上下两个表面分别通过散热板60和背板70带走了LED工作过程中产生的大部分热量，保证了液晶模组的可靠运行。
这里，散热板60为金属材料，本实施例中采用散热性能较好的铝材料的钣金件。
由于散热板60采用金属材料，灯条组件50与散热板60接触的部分很容易被刮破，导致灯条组件50表面的绝缘层破裂造成短路，为了防止这种情况的发生，结合图4，本实施例在散热板60与水平板50b之间设有导热绝缘层100，使散热板60和灯条组件50不直接接触从而保护了灯条组件50。
优选地，导热绝缘层100为导热绝缘胶，导热绝缘层100贴付于散热板60下表面。
结合图3和图5，图5为本实施例提供的一种方便液晶模组的散热模块安装的冶具，该冶具包括定位座300和定位座300上表面凸设的一排定位柱301，灯条组件50上进一步设有多个固定孔50i以及定位孔50h，定位柱301的间距根据灯条组件50上的定位孔50h的分布相应设置，散热板60和背板70上分别设有相应数量的穿孔60h、70h。具体装配时，背板70、散热板60和灯条组件50依次放置于冶具上，使得定位柱301穿设于定位孔50h、和穿孔60h、70h内，灯条组件50、散热板60和背板70的相对位置关系即确定，最后利用螺纹紧固件依次穿过固定孔50i和散热板60及背板70上相应的孔(图未示)即可精确定位灯条组件50、散热板60和背板70。
灯条组件50装配位置精度极大地影响了液晶模组入光侧的光学品味，本实施例将LED光源模组50c集成在灯条组件50上，散热板60设置在灯条组件50的水平板50b上，装配时仅需要保证灯条组件50与背板70的装配精度即可保证良好的光学品味。另外，通过单独设置散热模块安装的冶具，提高了装配效率，同时也保证了装配精度。
实施例2
参阅图6，为本发明实施例2的灯条组件散热结构示意图。与实施例1不同的是，实施例2中没有导热绝缘层100，而是灯条组件50的电路部分接地或悬空，在水平板50b上设有凹槽501，凹槽501内裸铜，散热板60上设有拱起的凸台60a，凸台60a位于凹槽501内，且凸台60a与凹槽501上分别开设第一通孔11和第二通孔12，固定件200依次穿过第一通孔11和第二通孔12与背板70螺纹连接。具体地，背板70相应地设有凸起的螺纹孔13，螺纹孔13凸出并嵌入水平板50b的凹槽501内。
这种设置方式使散热板60与灯条组件50的接触部不在灯条组件50的表面，很好地保护了灯条组件50表面的绝缘层。
以上仅是本申请的几种实施方式，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 (2)

1.一种液晶模组的散热结构，其特征在于，包括：具有电路部分的灯条组件(50)，包括折弯形成的互相垂直的竖直板(50a)和水平板(50b)，所述竖直板(50a)内表面固定有多个LED光源模组(50c)；背板(70)，所述水平板(50b)固定于所述背板(70)上；散热板(60)，所述散热板(60)为金属材料，固定于所述水平板(50b)上表面；所述灯条组件(50)的电路部分接地或悬空，所述水平板(50b)上设有凹槽(501)，所述凹槽(501)内裸铜，所述散热板(60)上设有拱起的凸台(60a)，所述凸台(60a)位于所述凹槽(501)内，且所述凸台(60a)与所述凹槽(501)上分别开设第一通孔(11)和第二通孔(12)，固定件(200)依次穿过所述第一通孔(11)和所述第二通孔(12)与背板(70)螺纹连接；所述背板(70)上相应地设有凸起的螺纹孔(13)，螺纹孔(13)凸出并嵌入所述水平板(50b)的凹槽(501)内。
2.一种液晶模组，包括前框(10)、胶框(20)、液晶玻璃(30)、光学部材(40)、灯条组件(50)、散热板(60)和背板(70)，其特征在于，所述灯条组件(50)包括电路部分和折弯形成的互相垂直的竖直板(50a)和水平板(50b)，所述竖直板(50a)内表面固定有多个LED光源模组(50c)，所述水平板(50b)固定于所述背板(70)上；所述胶框(20)具有卡口(20a)，所述竖直板(50a)卡设于所述卡口(20a)内；所述散热板(60)为金属材料，固定于所述水平板(50b)上表面；所述灯条组件(50)的电路部分接地或悬空，所述水平板(50b)上设有凹槽(501)，所述凹槽(501)内裸铜，所述散热板(60)上设有拱起的凸台(60a)，所述凸台(60a)位于所述凹槽(501)内，且所述凸台(60a)与所述凹槽(501)上分别开设第一通孔(11)和第二通孔(12)，固定件(200)依次穿过所述第一通孔(11)和所述第二通孔(12)与背板(70)螺纹连接；所述背板(70)上相应地设有凸起的螺纹孔(13)，螺纹孔(13)凸出并嵌入所述水平板(50b)的凹槽(501)内。
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