WO2013117010A1 - 背光模组及液晶显示器 - Google Patents

背光模组及液晶显示器 Download PDF

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Publication number
WO2013117010A1
WO2013117010A1 PCT/CN2012/071030 CN2012071030W WO2013117010A1 WO 2013117010 A1 WO2013117010 A1 WO 2013117010A1 CN 2012071030 W CN2012071030 W CN 2012071030W WO 2013117010 A1 WO2013117010 A1 WO 2013117010A1
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WO
WIPO (PCT)
Prior art keywords
heat
bracket
filling layer
conductive filling
screw hole
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PCT/CN2012/071030
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English (en)
French (fr)
Inventor
阙成文
陈仕祥
Original Assignee
深圳市华星光电技术有限公司
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US13/498,961 priority Critical patent/US20130208212A1/en
Priority to DE112012005848.8T priority patent/DE112012005848B4/de
Publication of WO2013117010A1 publication Critical patent/WO2013117010A1/zh

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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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0085—Means for removing heat created by the light source from the package
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames
    • 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
    • G02F1/133628—Illuminating devices with cooling means

Definitions

  • the present invention relates to the field of liquid crystal display technologies, and in particular, to a backlight module and a liquid crystal display.
  • the light source of the liquid crystal display generally adopts a light emitting diode (Light Emitting).
  • Diode LED
  • LED's luminous efficiency and its lifetime will decrease with the increase of its heat
  • how to solve the problem of LED heat dissipation is a research direction in the field of liquid crystal display technology.
  • FIG. 1 is a schematic structural view of a side-input LED backlight module in the prior art.
  • the side-input LED backlight module comprises a front frame 11, a middle frame 12, and an LED 13.
  • the LED 13 is fixed on the heat dissipation bracket 14 , and the heat dissipation bracket 14 is fixed on the back plate 15 .
  • the heat generated by the LED 13 during operation is transmitted to the backing plate 15 through the heat dissipation bracket 14, and the backing plate 15 exchanges heat with the surrounding air to realize heat dissipation.
  • both the heat dissipating bracket 14 and the backing plate 15 are rigid structures, the surfaces have high hardness. In the manufacturing process of the heat dissipating bracket 14 and the backing plate 15, the respective surfaces have a certain roughness. Generally speaking, the lower the manufacturing precision, the higher the surface roughness. As shown in FIG. 2, after the surface of the heat dissipating bracket 14 and the backing plate 15 are enlarged, a rugged shape may occur, so that after the heat dissipating bracket 14 and the backing plate 15 are in contact with each other, a large amount of gap is generated therebetween. 17 (see Figure 2).
  • the presence of the gap 17 prevents the heat dissipating bracket 14 from being closely attached to the backing plate 15, so that the heat dissipating bracket 14 cannot efficiently transfer the heat generated by the LED 13 to the backing plate 15, which greatly reduces the heat dissipation efficiency of the LED 13.
  • One of the objectives of the present invention is to provide a backlight module to solve the problem of heat dissipation in the prior art due to the surface roughness of the heat dissipation bracket and the back plate. Low technical issues.
  • a further object of the present invention is to provide a liquid crystal display to solve the problem of the surface roughness of the heat dissipating bracket and the backing plate in the prior art, and there is a large gap between the two when the bonding is performed, which affects heat transfer, resulting in low heat dissipation efficiency.
  • the present invention constructs a backlight module including a light source, a heat dissipation bracket connected to the light source for conducting heat generated by the light source, and a heat dissipation bracket connected to the heat dissipation bracket for conducting the heat dissipation bracket The heat is dissipated to the backboard;
  • a heat-conductive filling layer is disposed between the heat-dissipating bracket and the backing plate, and the heat-conductive filling layer is formed of a soft metal material, and the heat-conductive filling layer is fixed to the heat-dissipating bracket by coating or attaching The bottom surface of the back plate is connected; the heat conductive filling layer is a solder paste layer or a soft metal foil;
  • the thermally conductive filling layer is filled to a gap between the heat dissipating bracket and the backing plate, and the thermally conductive filling layer is used to generate the light source, and The heat conducted through the heat dissipation bracket is further conducted to the backing plate.
  • the heat dissipation bracket is provided with a first screw hole
  • the heat conductive filling layer is provided with a second screw hole
  • the back plate is provided with a third screw hole
  • a through hole is screwed
  • the nuts of the first screw hole, the second screw hole and the third screw hole are used for pressing the heat dissipation bracket and the back plate to press the heat conductive filling layer.
  • Another object of the present invention is to provide a backlight module to solve the problem in the prior art that the surface of the heat dissipating bracket and the back plate is rough, and there is a large gap between the two when the bonding is performed, which affects heat transfer and leads to heat dissipation efficiency. Low technical issues.
  • the present invention constructs a backlight module including a light source, a heat dissipation bracket connected to the light source for conducting heat generated by the light source, and a connection with the heat dissipation bracket for a backing plate that dissipates heat conducted by the heat dissipation bracket;
  • a thermally conductive filling layer is disposed between the heat dissipating bracket and the backing plate, and after the heat dissipating bracket and the backing plate are pressed together, the thermally conductive filling layer is filled between the heat dissipating bracket and the backing plate a gap that is used to conduct heat generated by the light source and conducted through the heat dissipation bracket to the backing plate when the light source operates.
  • the thermally conductive filling layer is formed of a soft metal material.
  • the thermally conductive filling layer is formed on the bottom surface of the backing plate by coating or attaching to the heat dissipating bracket.
  • the heat dissipation bracket is provided with a first screw hole
  • the heat conductive filling layer is provided with a second screw hole
  • the back plate is provided with a third screw hole
  • a through hole is screwed a nut for the first screw hole, the second screw hole and the third screw hole for pressing the heat dissipation bracket and the back plate to press the heat conductive filling layer.
  • the thermally conductive filling layer is a solder paste layer or a soft metal foil.
  • a further object of the present invention is to provide a liquid crystal display to solve the problem of the surface roughness of the heat dissipating bracket and the backing plate in the prior art, and there is a large gap between the two when the bonding is performed, which affects heat transfer, resulting in low heat dissipation efficiency.
  • the present invention constructs a liquid crystal display
  • the liquid crystal panel includes a backlight module
  • the backlight module includes a light source connected to the light source for conducting heat generated by the light source.
  • a heat dissipating bracket, and a backing plate connected to the heat dissipating bracket for dissipating heat conducted by the heat dissipating bracket, and a heat conducting filling layer is disposed between the heat dissipating bracket and the backing board After the bracket and the backboard are pressed together, the heat conductive filling layer is filled to a gap between the heat dissipation bracket and the backboard;
  • the thermally conductive filling layer is configured to conduct heat generated by the light source and conducted through the heat dissipation bracket to the backing plate when the light source is in operation.
  • the thermally conductive filling layer is formed of a soft metal material.
  • the thermally conductive filling layer is formed on the bottom surface of the backing plate by coating or attaching to the heat dissipating bracket.
  • the heat dissipation bracket is provided with a first screw hole
  • the heat conductive filling layer is provided with a second screw hole
  • the back plate is provided with a third screw hole
  • a through hole and screw joint a nut for the first screw hole, the second screw hole and the third screw hole for pressing the heat dissipation bracket and the back plate to press the heat conductive filling layer.
  • the thermally conductive filling layer is a solder paste layer or a soft metal foil.
  • the present invention provides a thermal conductive filling layer between the heat dissipating bracket and the backing plate, and after the heat dissipating bracket and the backing plate are pressed together, the thermally conductive filling layer is filled into the gap between the heat dissipating bracket and the backing plate.
  • the heat conducted by the heat dissipation bracket is efficiently transmitted to the backboard and is emitted by the backboard, which greatly improves the heat transfer and the emission efficiency.
  • FIG. 1 is a schematic structural view of a backlight module in the prior art
  • FIG. 2 is a schematic enlarged view of the surface of the heat dissipation bracket and the back plate shown in FIG. 1 after being attached;
  • FIG. 3 is a schematic structural view of a backlight module according to a preferred embodiment of the present invention.
  • FIG. 4 is a schematic view showing the assembly of the heat dissipation bracket, the heat conductive filling layer and the back plate of the backlight module of the present invention, wherein the surface bonding effect of the heat dissipation bracket and the back plate is enlarged;
  • FIG. 5 is a schematic view showing the assembly of the heat dissipation bracket, the heat conductive filling layer and the back plate of the backlight module of the present invention.
  • FIG 3 is a schematic structural view of a preferred embodiment of a backlight module of the present invention.
  • the backlight module includes a front frame 31, a middle frame 32, a light source 33, a heat dissipation bracket 34 back plate 35, a light guide plate 36, and a heat conductive filling layer 37.
  • the front frame 31 is mounted outside the middle frame 32, and the middle frame 32 is used to carry a display screen (not shown).
  • the back plate 35 is mounted inside the middle frame 32.
  • the light source 33 is disposed on the heat dissipation bracket 34, and the heat dissipation bracket 34 is attached to the back plate 35.
  • the thermally conductive filling layer 37 is located between the heat dissipation bracket 34 and the backing plate 35.
  • the thermally conductive filling layer 37 is formed of a soft metal material.
  • the heat dissipation bracket 34 When the light source 33 is in operation, the heat dissipation bracket 34 is configured to conduct heat generated by the light source 33 to the heat conductive filling layer 37, and the heat conductive filling layer 37 is used to further heat the heat dissipation bracket 34. Conducted to the backing plate 35, the backing plate 35 is used to dissipate heat conducted by the thermally conductive filling layer 37.
  • FIG. 4 is a schematic view showing the assembly of the heat dissipation bracket 34, the heat conductive filling layer 37 and the back plate 35 in the backlight module of the present invention, wherein the heat dissipation bracket and the heat dissipation bracket are enlarged The surface of the back sheet fits.
  • the thermally conductive filling layer 37 is preferably a solder paste layer, and the solder paste layer is applied to the heat dissipation bracket 34 for connecting the bottom surface 341 of the back plate 35.
  • the heat conductive filling layer 37 (solder paste layer) may be directly filled to a gap between the heat dissipation bracket 34 and the back plate 35.
  • FIG. 5 is a schematic view showing the assembly of the heat dissipation bracket 34, the heat conductive filling layer 37 and the back plate 35 in the backlight module of the present invention.
  • the thermally conductive filling layer 37 is preferably a soft metal foil attached to the heat dissipating bracket 34 for connecting the bottom surface of the backing plate 35 (not shown) ).
  • the heat dissipation bracket 34 is provided with a first screw hole 342, the heat conductive filling layer 37 is provided with a second screw hole 371, the back plate 35 is provided with a third screw hole 351, and a through hole And screwing the nut 38 of the first screw hole 342, the second screw hole 371 and the third screw hole 351 for pressing the heat dissipation bracket 34 and the back plate 35 to press the heat conductive filling layer 37.
  • the thermally conductive filling layer 37 (soft metal foil) is filled to a gap between the heat dissipation bracket 34 and the backing plate 35.
  • the thermally conductive filling layer 37 may be other soft metal materials as long as it can be filled to the heat dissipation bracket 34 and the back plate.
  • the gap between the 35 and the heat conducted by the heat dissipation bracket 34 can be transmitted to the back plate 35, which are not enumerated here.
  • heat generated by the light source 33 is conducted through the heat dissipation bracket 34, and heat conducted by the heat dissipation bracket 34 is conducted to the back plate 35 through the heat conductive filling layer 37.
  • thermally conductive filling layer 37 completely fills the gap between the heat dissipating bracket 34 and the backing plate 35, heat conducted through the heat dissipating bracket 34 can be efficiently conducted through the thermally conductive filling layer 37 to the Back plate 35.
  • the backing plate 35 exchanges heat conducted by the heat conductive filling layer 37 with outside air to dissipate heat.
  • the present invention also provides a liquid crystal display comprising a backlight module provided by the present invention, the backlight module comprising a light source 33 connected to the light source 33 for conducting heat generated by the light source a heat dissipating bracket 34, and a backing plate 35 connected to the heat dissipating bracket 34 for dissipating heat conducted by the heat dissipating bracket 34; a heat conducting filling layer 37 is disposed between the heat dissipating bracket 34 and the backing plate 35 After the heat dissipation bracket 34 and the back plate 35 are pressed together, the heat conductive filling layer 37 is filled to a gap between the heat dissipation bracket 34 and the back plate 35, and the heat conductive filling layer 37 is used for The heat generated by the light source 33 and conducted through the heat dissipation bracket 34 is further conducted to the back plate 35.
  • the backlight module comprising a light source 33 connected to the light source 33 for conducting heat generated by the light source a heat dissipating bracket 34, and a backing
  • the present invention provides a thermal conductive filling layer 37 between the heat dissipating bracket 34 and the backing plate 35. After the heat dissipating bracket 34 and the backing plate 35 are pressed together, the thermally conductive filling layer 37 can be filled. a gap between the heat dissipating bracket 34 and the backing plate 35, so that the heat conducted by the heat dissipating bracket 34 is efficiently transmitted to the backing plate 35, and is dissipated by the backing plate 35, greatly improving Heat transfer and emission efficiency.

Abstract

提供一种背光模组及液晶显示器。背光模组包括光源（33），散热支架（34）以及背板（35），散热支架（34）和背板（35）之间设置一导热填充层（37），在将散热支架（34）和金属层压合后，该导热填充层（37）填充至散热支架（34）和背板（35）之间的间隙，用于将散热支架传导的热量进一歩传导至背板，如此提高了热量传递和散发效率。

Description

背光模组及液晶显示器 技术领域
本发明涉及液晶显示技术领域，尤其涉及一种背光模组及液晶显示器。
 背景技术
随着液晶显示器的不断发展和普及，对液晶显示器内部各部件功能的要求也越来越高。
现有技术中，液晶显示器的光源一般都采用发光二极管（Light Emitting Diode，LED），但是由于LED的发光效率及其寿命都会随着其发热量的上升而降低，因此如何解决LED的散热问题是液晶显示技术领域的一个研究方向。
请参阅图1，图1为现有技术中侧入光式LED背光模组的结构示意图。该侧入光式LED背光模组包括前框11、中框12、LED 13、散热支架14、背板15以及导光板16等。
其中，LED13固定在散热支架14上，散热支架14固定在背板15上。LED13在工作过程中产生的热量通过散热支架14传递至背板15上，背板15同周围的空气进行热交换，实现热量的散发。
但是，由于散热支架14和背板15均为刚性结构体，表面皆具有较高的硬度。在散热支架14和背板15的生产制造过程中，各自表面具有一定的粗糙度。通常来讲，制造精度越低，表面粗糙度越高。如图2所示，散热支架14和背板15的表面被放大之后，会出现凹凸不平的形状，进而使得散热支架14和背板15在相互接触贴合后，二者之间产生大量的间隙17（请参阅图2）。间隙17的存在，使得散热支架14不能紧密的贴合于背板15上，从而使得散热支架14不能高效的将LED13产生的热量传递给背板15，极大地降低了LED13散热效率。
综上所述，由于散热支架14和背板15的表面粗糙度，而使得在贴合时两者之间存在大量的间隙17，从而影响热量传递，导致散热效率降低。因此，如何有效地消除以上问题，是液晶生产技术领域需要解决的技术问题之一。
 技术问题
本发明的其中一目的在于提供一种背光模组，以解决现有技术中由于散热支架和背板的表面粗糙，在贴合时两者之间存在大量的间隙，影响热量传递，导致散热效率低的技术问题。
本发明的又一个目的在于提供一种液晶显示器，以解决现有技术中由于散热支架和背板的表面粗糙，在贴合时两者之间存在大量的间隙，影响热量传递，导致散热效率低的技术问题。
 技术解决方案
本发明构造了一种背光模组，包括光源，与所述光源连接、用于将所述光源产生的热量传导出去的散热支架，以及与所述散热支架连接、用于将所述散热支架传导的热量散发出去的背板；
所述散热支架和所述背板之间设置一导热填充层，所述导热填充层由软性金属材料形成，所述导热填充层通过涂布或者贴附的方式固定于所述散热支架的用于连接所述背板的底面；所述导热填充层为锡膏层或者软性金属箔；
在将所述散热支架和所述背板压合后，所述导热填充层填充至所述散热支架和所述背板之间的间隙，所述导热填充层用于将所述光源产生、并经所述散热支架传导的热量进一步的传导至所述背板。
在本发明的背光模组中，所述散热支架设置有第一螺孔、所述导热填充层设置有第二螺孔、所述背板设置有第三螺孔，以及一穿过并螺接所述第一螺孔、第二螺孔和第三螺孔的螺母，用于压合所述散热支架和所述背板，进而挤压所述导热填充层的。
本发明的另一目的在于提供一种背光模组，以解决现有技术中由于散热支架和背板的表面粗糙，在贴合时两者之间存在大量的间隙，影响热量传递，导致散热效率低的技术问题。
为解决上述技术问题，本发明构造了一种背光模组，包括光源，与所述光源连接、用于将所述光源产生的热量传导出去的散热支架，以及与所述散热支架连接、用于将所述散热支架传导的热量散发出去的背板；
所述散热支架和所述背板之间设置一导热填充层，在将所述散热支架和所述背板压合后，所述导热填充层填充至所述散热支架和所述背板之间的间隙，在所述光源工作时，所述导热填充层用于将所述光源产生、并经所述散热支架传导的热量进一步的传导至所述背板。
在本发明的液晶面板中，所述导热填充层由软性金属材料形成。
在本发明的液晶面板中，所述导热填充层通过涂布或贴附的方式形成于所述散热支架用于连接所述背板的底面。
在本发明的液晶面板中，所述散热支架设置有第一螺孔、所述导热填充层设置有第二螺孔、所述背板设置有第三螺孔，以及一穿过并螺接所述第一螺孔、第二螺孔和第三螺孔的螺母，用于压合所述散热支架和所述背板，进而挤压所述导热填充层的。
在本发明的液晶面板中，所述导热填充层为锡膏层或者软性金属箔。
本发明的又一个目的在于提供一种液晶显示器，以解决现有技术中由于散热支架和背板的表面粗糙，在贴合时两者之间存在大量的间隙，影响热量传递，导致散热效率低的技术问题。
为解决上述技术问题，本发明构造了一种液晶显示器，所述液晶面板包括一背光模组，所述背光模组包括光源，与所述光源连接、用于将所述光源产生的热量传导出去的散热支架，以及与所述散热支架连接、用于将所述散热支架传导的热量散发出去的背板，所述散热支架和所述背板之间设置一导热填充层，在将所述散热支架和所述背板压合后，该导热填充层填充至所述散热支架和所述背板之间的间隙；
在所述光源工作时，所述导热填充层用于将所述光源产生、并经所述散热支架传导的热量进一步的传导至所述背板。
在本发明的液晶显示器中，所述导热填充层由软性金属材料形成。
在本发明的液晶显示器中，所述导热填充层通过涂布或贴附的方式形成于所述散热支架用于连接所述背板的底面。
在本发明的液晶显示器中，所述散热支架设置有第一螺孔、所述导热填充层设置有第二螺孔、所述背板设置有第三螺孔，以及一穿过并螺接所述第一螺孔、第二螺孔和第三螺孔的螺母，用于压合所述散热支架和所述背板，进而挤压所述导热填充层的。
在本发明的液晶显示器中，所述导热填充层为锡膏层或者软性金属箔。
 有益效果
本发明相对现有技术，通过在散热支架和背板之间设置一层导热填充层，在将散热支架和背板压合后，该导热填充层填充至散热支架和背板之间的间隙，从而使得散热支架传导的热量高效的传递至背板，并由背板散发出去，极大地提高了热量传递和散发效率。
 附图说明
图1为现有技术中背光模组的结构示意图；
图2为图1所示的散热支架和背板的表面的贴合后的放大效果示意图；
图3为本发明背光模组的较佳实施例的结构示意图；
图4为本发明背光模组的散热支架、导热填充层以及背板的第一较佳实施例的装配示意图，其中放大地表现出散热支架和背板的表面贴合效果；
图5为本发明背光模组的散热支架、导热填充层以及背板的第二较佳实施例的装配示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。
图3为本发明的背光模组的较佳实施例的结构示意图。
所述背光模组包括前框31、中框32、光源33、散热支架34背板35、导光板36以及导热填充层37。
其中，所述前框31安装在所述中框32外部，所述中框32用于承载显示屏（图未标示）。所述背板35安装于所述中框32内部。所述光源33设置在所述散热支架34上，所述散热支架34贴合连接所述背板35。所述导热填充层37位于所述散热支架34和所述背板35之间。优选的，所述导热填充层37由软性金属材料形成。
在所述光源33工作时，所述散热支架34用于将所述光源33产生的热量传导至所述导热填充层37，所述导热填充层37用于将所述散热支架34传导的热量进一步传导至所述背板35，所述背板35用于将所述导热填充层37传导的热量散发出去。
请参阅图4，图4为本发明背光模组中所述散热支架34、所述导热填充层37以及所述背板35的第一较佳实施例装配示意图，其中放大地表现出散热支架和背板的表面贴合效果。
在图4所示的实施例中，所述导热填充层37优选为锡膏层，该锡膏层涂布于所述散热支架34用于连接所述背板35的底面341上。
在将所述散热支架34和所述背板35压合后，所述导热填充层37（锡膏层）可直接填充至所述散热支架34和所述背板35之间的间隙。
请参阅图5，图5为本发明背光模组中所述散热支架34、所述导热填充层37以及所述背板35的第二较佳实施例装配示意图。
在图5所示的实施例中，所述导热填充层37优选为软性金属箔，该软性金属箔贴附于所述散热支架34用于连接所述背板35的底面（图未标示）。
请继续参阅图5，所述散热支架34设置有第一螺孔342，所述导热填充层37设置有第二螺孔371，所述背板35设置有第三螺孔351，以及一穿过并螺接所述第一螺孔342、第二螺孔371和第三螺孔351的螺母38，用于压合所述散热支架34和所述背板35，进而挤压所述导热填充层37，使得所述导热填充层37（软性金属箔）填充至所述散热支架34和所述背板35之间的间隙。
当然，在具体实施过程中，除了锡膏层和软性金属箔之外，所述导热填充层37也可以为其它的软性金属材料，只要能够填充至所述散热支架34和所述背板35之间的间隙，并能够将所述散热支架34传导的热量传导至所述背板35即可，此处不一一列举。
本发明提供的背光模组的较佳实施例的工作原理为：
在所述光源33发光时，所述光源33产生的热量经所述散热支架34传导，所述散热支架34传导的热量经所述导热填充层37传导至所述背板35。
由于所述导热填充层37将所述散热支架34和所述背板35之间的空隙完全填充，因此经所述散热支架34传导的热量可以高效的经所述导热填充层37传导至所述背板35。
所述背板35将所述导热填充层37传导的热量与外界空气进行热交换，从而将热量散发。
本发明还提供一种液晶显示器，所述液晶显示器包括本发明提供的背光模组，所述背光模组包括光源33，与所述光源33连接、用于将所述光源产生的热量传导出去的散热支架34，以及与所述散热支架34连接、用于将所述散热支架34传导的热量散发出去的背板35；所述散热支架34和所述背板35之间设置一导热填充层37，在将所述散热支架34和所述背板35压合后，所述导热填充层37填充至所述散热支架34和所述背板35之间的间隙，所述导热填充层37用于将所述光源33产生、并经所述散热支架34传导的热量进一步的传导至所述背板35。鉴于该背光模组的结构及其工作原理在上文已有详细的描述，此处不再赘述。
本发明通过在所述散热支架34和所述背板35之间设置一层导热填充层37，在将所述散热支架34和所述背板35压合后，所述导热填充层37能够填充至所述散热支架34和所述背板35之间的间隙，从而使得所述散热支架34传导的热量高效的传递至所述背板35，并由所述背板35散发出去，极大地提高了热量传递和散发效率。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。
 本发明的实施方式
工业实用性
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Claims (12)

  1. 一种背光模组，包括光源，与所述光源连接、用于将所述光源产生的热量传导出去的散热支架，以及与所述散热支架连接、用于将所述散热支架传导的热量散发出去的背板，其中：
    所述散热支架和所述背板之间设置一导热填充层，所述导热填充层由软性金属材料形成，所述导热填充层通过涂布或者贴附的方式固定于所述散热支架的用于连接所述背板的底面；所述导热填充层为锡膏层或者软性金属箔；
    在将所述散热支架和所述背板压合后，所述导热填充层填充至所述散热支架和所述背板之间的间隙，所述导热填充层用于将所述光源产生、并经所述散热支架传导的热量进一步的传导至所述背板。
  2. 根据权利要求1所述的背光模组，其中，所述散热支架设置有第一螺孔、所述导热填充层设置有第二螺孔、所述背板设置有第三螺孔，以及一穿过并螺接所述第一螺孔、第二螺孔和第三螺孔的螺母，用于压合所述散热支架和所述背板，进而挤压所述导热填充层的。
  3. 一种背光模组，包括光源，与所述光源连接、用于将所述光源产生的热量传导出去的散热支架，以及与所述散热支架连接、用于将所述散热支架传导的热量散发出去的背板，其中：
    所述散热支架和所述背板之间设置一导热填充层，在将所述散热支架和所述背板压合后，所述导热填充层填充至所述散热支架和所述背板之间的间隙，所述导热填充层用于将所述光源产生、并经所述散热支架传导的热量进一步的传导至所述背板。
  4. 根据权利要求3所述的背光模组，其中，所述导热填充层由软性金属材料形成。
  5. 根据权利要求4所述的背光模组，其中，所述导热填充层通过涂布或者贴附的方式固定于所述散热支架的用于连接所述背板的底面。
  6. 根据权利要求3所述的背光模组，其中，所述散热支架设置有第一螺孔、所述导热填充层设置有第二螺孔、所述背板设置有第三螺孔，以及一穿过并螺接所述第一螺孔、第二螺孔和第三螺孔的螺母，用于压合所述散热支架和所述背板，进而挤压所述导热填充层的。
  7. 根据权利要求4所述的背光模组，其中，所述导热填充层为锡膏层或者软性金属箔。
  8. 一种液晶显示器，其中，所述液晶显示器包括一背光模组，所述背光模组包括光源，与所述光源连接、用于将所述光源产生的热量传导出去的散热支架，以及与所述散热支架连接、用于将所述散热支架传导的热量散发出去的背板；
    所述散热支架和所述背板之间设置一导热填充层，在将所述散热支架和所述背板压合后，所述导热填充层填充至所述散热支架和所述背板之间的间隙，所述导热填充层用于将所述光源产生、并经所述散热支架传导的热量进一步的传导至所述背板。
  9. 根据权利要求8所述的液晶显示器，其中，所述导热填充层由软性金属材料形成。
  10. 根据权利要求9所述的液晶显示器，其中，所述导热填充层通过涂布或贴附的方式固定于所述散热支架用于连接所述背板的底面。
  11. 根据权利要求8所述的液晶显示器，其中，所述散热支架设置有第一螺孔、所述导热填充层设置有第二螺孔、所述背板设置有第三螺孔，以及一穿过并螺接所述第一螺孔、第二螺孔和第三螺孔的螺母，用于压合所述散热支架和所述背板，进而挤压所述导热填充层的。
  12. 根据权利要求9所述的液晶显示器，其中，所述导热填充层为锡膏层或者软性金属箔。
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