CN102748639A - 一种背光模组用led灯条及背光模组 - Google Patents

一种背光模组用led灯条及背光模组 Download PDF

Info

Publication number
CN102748639A
CN102748639A CN201210194468XA CN201210194468A CN102748639A CN 102748639 A CN102748639 A CN 102748639A CN 201210194468X A CN201210194468X A CN 201210194468XA CN 201210194468 A CN201210194468 A CN 201210194468A CN 102748639 A CN102748639 A CN 102748639A
Authority
CN
China
Prior art keywords
led lamp
lamp bar
heat
conducting glue
gulde edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201210194468XA
Other languages
English (en)
Inventor
巫越
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to CN201210194468XA priority Critical patent/CN102748639A/zh
Priority to US13/574,465 priority patent/US9122096B2/en
Priority to DE112012006357.0T priority patent/DE112012006357B4/de
Priority to PCT/CN2012/077000 priority patent/WO2013185347A1/zh
Publication of CN102748639A publication Critical patent/CN102748639A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133608Direct backlight including particular frames or supporting means
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133603Direct backlight with LEDs
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133628Illuminating devices with cooling means
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F2202/00Materials and properties
    • G02F2202/28Adhesive materials or arrangements

Abstract

本发明属于液晶显示领域,更具体的说,涉及一种背光模组用LED灯条及背光模组。所述LED灯条正面设置有LED灯,LED灯条背面为一平面,用于粘贴导热胶,所述LED灯条背面设有用于定位导热胶的定位边,所述定位边凸出于LED灯条背部平面。本发明背光模组用LED灯条背面设有用于定位导热胶的定位边,所述定位边凸出于LED灯条背部平面,定位边可以使操作人员在贴附导热胶时通过靠齐定位边的边缘来进行整齐贴附,导热胶粘贴的整齐,与LED灯条的配合自然就会更严密,由于不需进行拉扯来绷直导热胶,从而避免了内拉应力的产生,这样,即使在恶劣的使用环境下,也不容易发生脱胶和变形,保证了背光模组的稳定性和散热效果。

Description

一种背光模组用LED灯条及背光模组
技术领域
本发明属于液晶显示领域,更具体的说,涉及一种背光模组用LED灯条及背光模组。
背景技术
LED光源发光效率高,节能环保,而且寿命长,作为背光源广泛应用于液晶显示装置中,由于LED发热量大,故LED灯条需要专门的散热基座,为了保证LED灯条与散热基座之间的导热性能,一般会在LED灯条的背部设置导热胶,然后再把LED灯条和导热胶一块粘贴到散热基座上,传统的LED灯条为长条状的平板结构,LED灯条正面设置有LED灯,LED灯条的背部是一个平面,在粘贴导热胶时,导热胶既薄又窄且软,长度也很长,很难整齐且严密地贴附于LED灯条的背部平面,如图1所示,导热胶2贴附不齐会影响LED灯条1散热的均匀性,如图2所示,导热胶2与LED灯条1背部贴合不严密,产生气泡更会阻碍热量的传导。
为了粘贴好导热胶,人们常采用的方法是将导热胶拉扯以达到绷直,然后再粘贴到LED灯条的背面,这会使导热胶存在内拉应力,当背光模组被点亮升温、久置、或者受潮等情况下,导热胶粘贴时产生的内拉应力会使得导热胶急剧发生回缩,从而造成脱胶、变形,影响LED灯条的散热效果和稳定性。
发明内容
本发明所要解决的技术问题是提供一种背光模组用LED灯条及背光模组,所述LED灯条在粘贴导热胶时更整齐严密,而且粘贴效率更高。
本发明的技术方案为:一种背光模组用LED灯条,所述LED灯条正面设置有LED灯,LED灯条背面为一平面,用于粘贴导热胶,所述LED灯条背面设有用于定位导热胶的定位边,所述定位边凸出于LED灯条背部平面。
优选的,所述定位边位于LED灯条背面的上缘,在粘贴导热胶时,操作人员以上定位边为准对齐即可。
优选的,所述定位边位于LED灯条背面的下缘,在粘贴导热胶时,操作人员以下定位边为准对齐即可。
优选的,所述定位边位于LED灯条背面的上缘和下缘。
优选的,所述定位边为分段式结构,由多个小段组成。在把LED灯条和导热胶粘附到散热基座上时,导热胶会产生压应力,导热胶可以向相邻小段之间的间距进行形变,从而释放部分压应力。
优选的,所述定位边每个小段形状为矩形或梯形。
优选的,所述定位边形状为矩形方波,同样能为导热胶提供变形空间,释放部分压应力。
优选的,所述定位边形状为梯形波,同样能为导热胶提供变形空间,释放部分压应力。
本发明的有益效果为:本发明背光模组用LED灯条背面设有用于定位导热胶的定位边,所述定位边凸出于LED灯条背部平面,定位边可以使操作人员在贴附导热胶时通过靠齐定位边的边缘来进行整齐贴附,导热胶粘贴的整齐,与LED灯条的配合自然就会更严密,由于不需进行拉扯来绷直导热胶,从而避免了内拉应力的产生,这样,即使在恶劣的使用环境下,也不容易发生脱胶和变形,保证了背光模组的稳定性和散热效果。
本发明还公开了另一种技术方案:一种背光模组,包括上面所述的LED灯条、散热基座和导热胶,所述导热胶一边与LED灯条粘贴,另一边与散热基座粘贴,LED灯条上的定位边的高度小于导热胶的厚度。
优选的,所述散热基座为铝质挤出型材。
本发明所述背光模组LED灯条上的定位边的高度小于导热胶的厚度,目的是为了使定位边不影响导热胶与散热基座之间的粘贴。
附图说明
图1是现有技术中LED灯条与导热胶贴合不整齐的结构示意图;
图2是现有技术中LED灯条与导热胶贴合不严密的结构示意图;
图3是本发明所述背光模组中具有上定位边的LED灯条与导热胶贴合结构示意图;
图4是本发明所述背光模组中具有下定位边的LED灯条与导热胶贴合结构示意图;
图5是本发明所述背光模组中具有上定位边和下定位边的LED灯条与导热胶贴合结构示意图;
图6是本发明所述LED灯条定位边一个实施例的结构示意图;
图7是本发明所述LED灯条定位边另一个实施例的结构示意图;
图8是本发明所述LED灯条定位边另一个实施例的结构示意图;
图9是本发明所述LED灯条定位边另一个实施例的结构示意图。
其中:1、LED灯条;11、LED灯;12、定位边;2、导热胶。
具体实施方式
本发明公开一种背光模组,包括LED灯条、散热基座和导热胶,所述导热胶一边与LED灯条粘贴,另一边与散热基座粘贴,所述散热基座优选铝质挤出型材,作为本发明背光模组用LED灯条的实施例一,如图3所示,所述LED灯条1正面设置有LED灯11,LED灯条1背面为一平面,用于粘贴导热胶2,所述LED灯条1背面设有用于定位导热胶2的定位边12,所述定位边12凸出于LED灯条1背部平面。
在本实施例中,所述定位边12位于LED灯条1背面的上缘,所述定位边12是一个连接的条状结构,并与LED灯条1一体成型,为了使定位边12不影响导热胶2与散热基座之间的粘贴,LED灯条1上的定位边12的高度小于导热胶2的厚度。
本发明背光模组用LED灯条1背面设有用于定位导热胶2的定位边12,所述定位边12凸出于LED灯条1背部平面,定位边12可以使操作人员在贴附导热胶2时通过靠齐定位边12的边缘来进行整齐贴附,导热胶2粘贴的整齐,与LED灯条1的配合自然就会更严密,由于不需进行拉扯来绷直导热胶2,从而避免了内拉应力的产生,这样,即使在恶劣的使用环境下,也不容易发生脱胶和变形,保证了背光模组的稳定性和散热效果。
作为本发明背光模组用LED灯条的实施例二,如图4所示,与实施例一不同之处在于所述定位边12位于LED灯条1背面的下缘,在粘贴导热胶2时,操作人员以下定位边为准对齐即可,其它结构及有益效果均与实施例一一致,此处不再赘述。
作为本发明背光模组用LED灯条的实施例三,如图5所示,与实施例一不同之处在于所述定位边12位于LED灯条1背面的上缘和下缘,其它结构及有益效果均与实施例一一致,此处不再赘述。
上面所述的定位边均为连接的条状结构,在另外的实施例中,如图6和图7所示,所述定位边12为分段式结构,由多个小段组成,所述定位边12每个小段形状为矩形或梯形,在把LED灯条1和导热胶粘附到散热基座上时,导热胶会产生压应力,导热胶可以向相邻小段之间的间距进行形变,从而释放部分压应力。
在另外的实施例中,如图8和图9所示,所述定位边12形状为矩形方波或者为梯形波,矩形方波和梯形波同样能为导热胶提供变形空间,释放部分压应力。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明,不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干简单推演或替换,都应当视为属于本发明的保护范围。

Claims (10)

1.一种背光模组用LED灯条,所述LED灯条正面设置有LED灯,LED灯条背面为一平面,用于粘贴导热胶,其特征在于,所述LED灯条背面设有用于定位导热胶的定位边,所述定位边凸出于LED灯条背部平面。
2.如权利要求1所述的背光模组用LED灯条,其特征在于,所述定位边位于LED灯条背面的上缘。
3.如权利要求1所述的背光模组用LED灯条,其特征在于,所述定位边位于LED灯条背面的下缘。
4.如权利要求1所述的背光模组用LED灯条,其特征在于,所述定位边位于LED灯条背面的上缘和下缘。
5.如权利要求1至4任一项所述的背光模组用LED灯条,其特征在于,所述定位边为分段式结构,由多个小段组成。
6.如权利要求5所述的背光模组用LED灯条,其特征在于,所述定位边每个小段形状为矩形或梯形。
7.如权利要求1至4任一项所述的背光模组用LED灯条,其特征在于,所述定位边形状为矩形方波。
8.如权利要求1至4任一项所述的背光模组用LED灯条,其特征在于,所述定位边形状为梯形波。
9.一种背光模组,其特征在于,包括权利要求1至8任一项所述的背光模组用LED灯条、散热基座和导热胶,所述导热胶一边与LED灯条粘贴,另一边与散热基座粘贴,LED灯条上的定位边的高度小于导热胶的厚度。
10.如权利要求9所述的背光模组,其特征在于,所述散热基座为铝质挤出型材。
CN201210194468XA 2012-06-13 2012-06-13 一种背光模组用led灯条及背光模组 Pending CN102748639A (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201210194468XA CN102748639A (zh) 2012-06-13 2012-06-13 一种背光模组用led灯条及背光模组
US13/574,465 US9122096B2 (en) 2012-06-13 2012-06-15 LED lightbar for backlight module, and backlight module
DE112012006357.0T DE112012006357B4 (de) 2012-06-13 2012-06-15 LED-Lichtbalken für ein Hintergrundbeleuchtungsmodul und Hintergrundbeleuchtungsmodul
PCT/CN2012/077000 WO2013185347A1 (zh) 2012-06-13 2012-06-15 一种背光模组用led灯条及背光模组

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210194468XA CN102748639A (zh) 2012-06-13 2012-06-13 一种背光模组用led灯条及背光模组

Publications (1)

Publication Number Publication Date
CN102748639A true CN102748639A (zh) 2012-10-24

Family

ID=47029036

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210194468XA Pending CN102748639A (zh) 2012-06-13 2012-06-13 一种背光模组用led灯条及背光模组

Country Status (3)

Country Link
CN (1) CN102748639A (zh)
DE (1) DE112012006357B4 (zh)
WO (1) WO2013185347A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2702999Y (zh) * 2004-03-26 2005-06-01 田�健 带台阶的料带连接胶片
US20080123023A1 (en) * 2006-08-30 2008-05-29 Trung Doan White light unit, backlight unit and liquid crystal display device using the same
KR200446857Y1 (ko) * 2009-09-03 2009-12-04 삼성전자주식회사 백라이트 어셈블리
US20100123851A1 (en) * 2008-11-18 2010-05-20 Au Optronics Corporation Backlight Module and Display Device Using the Same
CN202109288U (zh) * 2011-06-15 2012-01-11 北京京东方光电科技有限公司 显示装置的背光源模组和显示装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200999033Y (zh) * 2007-01-27 2008-01-02 金志坚 雨刮器胶条雨刮片
CN201237105Y (zh) * 2008-06-16 2009-05-13 上海沪钥电子有限公司 用于固定表面贴装器件灯条的装置
CN201576701U (zh) * 2009-12-25 2010-09-08 上海必威电机电器有限公司 Led灯芯片金属散热装置
TW201123387A (en) * 2009-12-25 2011-07-01 xiang-hua Wang Thermal-electric separated metal PCB with a chip carrier.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2702999Y (zh) * 2004-03-26 2005-06-01 田�健 带台阶的料带连接胶片
US20080123023A1 (en) * 2006-08-30 2008-05-29 Trung Doan White light unit, backlight unit and liquid crystal display device using the same
US20100123851A1 (en) * 2008-11-18 2010-05-20 Au Optronics Corporation Backlight Module and Display Device Using the Same
KR200446857Y1 (ko) * 2009-09-03 2009-12-04 삼성전자주식회사 백라이트 어셈블리
CN202109288U (zh) * 2011-06-15 2012-01-11 北京京东方光电科技有限公司 显示装置的背光源模组和显示装置

Also Published As

Publication number Publication date
DE112012006357T5 (de) 2015-01-29
DE112012006357B4 (de) 2020-12-03
WO2013185347A1 (zh) 2013-12-19

Similar Documents

Publication Publication Date Title
CN102914909A (zh) 一种防漏光的侧入式背光的液晶模组及液晶显示器
CN102734707B (zh) 背光模组的制造方法及其固定用双面胶
CN202992919U (zh) 一种背光模组中的led固定结构及其液晶显示器
CN102929016B (zh) 一种液晶模组及液晶显示装置
CN206378663U (zh) 一种导光板和led灯条的一体化结构、背光源及液晶显示模组
CN103256514A (zh) 一种线型led光源
CN102748639A (zh) 一种背光模组用led灯条及背光模组
US10018775B2 (en) Backlight module and display device
CN203231156U (zh) 一种线型led光源
CN202902179U (zh) 一种直下式led灯条固定结构
CN203979984U (zh) 新型led背光源用灯条
CN204345553U (zh) 一种背光灯条固定装置
CN203363841U (zh) 散热型大功率led灯珠
CN203363870U (zh) 反射片、背光模组及显示装置
CN208314419U (zh) 一种带嵌入式散热板的玻璃背光板
CN207541365U (zh) 一种窄边框触控模组
CN202216046U (zh) 黏贴组合的led灯带
CN103149716B (zh) 一种显示装置及其组装方法
CN204696153U (zh) 光源封装件、背光模组以及显示装置
CN206805072U (zh) 一种fpc背面漏铜改善背光源散热的结构
US9122096B2 (en) LED lightbar for backlight module, and backlight module
CN201475886U (zh) 一种反射片及背光模组
CN202549199U (zh) 一种双面led显示屏
CN202629932U (zh) Led灯管铝基板的定位结构
CN206147227U (zh) 一种胶架和导光板的装配结构、背光源及液晶显示模组

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20121024