WO2013155748A1 - 背光模组及液晶显示装置 - Google Patents

背光模组及液晶显示装置 Download PDF

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Publication number
WO2013155748A1
WO2013155748A1 PCT/CN2012/075450 CN2012075450W WO2013155748A1 WO 2013155748 A1 WO2013155748 A1 WO 2013155748A1 CN 2012075450 W CN2012075450 W CN 2012075450W WO 2013155748 A1 WO2013155748 A1 WO 2013155748A1
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WO
WIPO (PCT)
Prior art keywords
light source
substrate
locking
locking hole
heat dissipating
Prior art date
Application number
PCT/CN2012/075450
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English (en)
French (fr)
Inventor
曾大伟
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 US13/581,978 priority Critical patent/US20130278857A1/en
Publication of WO2013155748A1 publication Critical patent/WO2013155748A1/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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • G02B6/0086—Positioning aspects
    • G02B6/0091—Positioning aspects of the light source relative to the light guide
    • 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 device.
  • the conventional liquid crystal display device 100 generally comprises the following components: a front frame 101 , a liquid crystal panel 102 , a plastic frame 103 , an optical film set 104 , a light guide plate 105 , a reflective plate 106 , a light source 107 , and a heat dissipation aluminum substrate 108 . And a back plate 109.
  • the light source 107 is composed of a printed circuit board and a light-emitting diode mounted on the printed circuit board.
  • the heat-dissipating aluminum substrate 108 is composed of a heat-dissipating portion and a fixing portion that are vertically connected to each other, and the light source 107 is mounted on the heat-dissipating aluminum substrate 108.
  • the fixing portion of the heat dissipating aluminum substrate 108 is placed on the back plate 109, and is fixed to the back plate 109 by screws 110.
  • the reflection plate 106 is disposed on an inner surface of the back plate 109 and a fixing portion of the heat dissipation aluminum substrate 108.
  • the light guide plate 105 is mounted on the reflective plate 106, and the light source 107 is located at one side of the light guide plate 105.
  • the plastic frame 103 has a connecting portion fixed on an outer surface of the heat dissipating aluminum substrate 108, the supporting portion is located above an edge of the optical film 104, and an edge of the liquid crystal panel 102 is located at the supporting portion. on.
  • the front frame is fixed to the plastic frame 103 and the back plate 109 by screws 111, and the edge of the liquid crystal panel 102 is held between the front frame 101 and the plastic frame 103.
  • the light source 107 is first mounted on the inner surface of the heat dissipation portion of the heat dissipation aluminum substrate 108, and the heat dissipation aluminum substrate 108 is fixed on the back plate 109; then the reflection plate 106, the light guide plate 105 and the optical film 104 are sequentially stacked on each other.
  • the plastic frame 103 is fixed to the heat dissipation aluminum substrate 108 and the back plate 109, and the liquid crystal panel 102 is placed on the support portion of the plastic frame 103. Finally, the front frame 101 and the plastic frame 103 and the back plate 109 are fixed. .
  • the front frame 101 needs to be detached from the liquid crystal display device 100, and then the liquid crystal panel 102, the plastic frame 103, the optical film group 104, the light guide plate 105, and the reflection plate 106 are sequentially removed. Finally, the light source 107 that needs to be replaced can be detached from the heat-dissipating aluminum substrate 108 to install a new light source 107. After the new light source 107 is installed, the reflection plate 106, the light guide plate 105, the optical film group 104, the plastic frame 103, the liquid crystal panel 102, and the front frame 101 are sequentially mounted.
  • the existing liquid crystal display device 100 needs to disassemble and install other components that need not be replaced during the replacement of the light source 107.
  • the operation of replacing the light source 107 is complicated, and may also cause adverse effects on these components that need not be replaced, thereby reducing Product yield of the liquid crystal display device 100.
  • the main object of the present invention is to provide a backlight module and a liquid crystal display device, which are easy to replace the light source and avoid affecting other components that need not be replaced, thereby improving product yield.
  • the present invention provides a backlight module, which includes a backplane, a heat dissipation substrate, and a light source, the backplane has a substrate, and the heat dissipation substrate includes a heat dissipation portion and a fixing portion connected to the heat dissipation portion.
  • the light source is fixed on the heat radiating portion, and the fixing portion is fixed on a lower side of the substrate.
  • the light source comprises a printed circuit board and a plurality of light emitting diodes mounted on the printed circuit board, the printed circuit board being in contact with the heat dissipating portion.
  • a reflective sheet is disposed above the substrate, and a light guide plate is disposed above the reflective sheet; a side surface of the light guide plate faces the light emitting diode of the light source; and an optical film group is disposed above the light guide plate.
  • the backboard further includes a side plate perpendicularly connected to the substrate, and the connection between the substrate and the side plate is provided with a channel, the side plate includes a conducting portion and a first locking portion vertically connected to the conducting portion
  • the light source and the heat dissipating portion are disposed on one side of the conducting portion via the channel, and the conducting portion and the light source are respectively disposed on opposite sides of the heat dissipating portion, and the side plate is provided with a first locking hole.
  • the width of the channel is greater than the thickness of the heat sink and the light source; the length of the channel is greater than the length of the heat sink for the heat sink and the light source to pass.
  • the first locking hole is opened on the first locking portion or the conducting portion.
  • the present invention further provides a backlight module, the backlight module includes a back plate, a heat dissipation substrate and a light source, the back plate has a substrate, and the heat dissipation substrate includes a heat dissipation portion and a fixing portion connected to the heat dissipation portion, the light source
  • the fixing portion is fixed on the lower side of the substrate; the heat dissipating portion is provided with a locking hole.
  • the light source comprises a printed circuit board and a plurality of light emitting diodes mounted on the printed circuit board, the printed circuit board being in contact with the heat dissipating portion.
  • a reflective sheet is disposed above the substrate, and a light guide plate is disposed above the reflective sheet; a side surface of the light guide plate faces the light emitting diode of the light source; and an optical film group is disposed above the light guide plate.
  • the backboard further includes a side plate perpendicularly connected to the substrate, and the connection between the substrate and the side plate is provided with a channel, the side plate includes a conducting portion and a first locking portion vertically connected to the conducting portion
  • the light source and the heat dissipating portion are disposed on one side of the conducting portion via the channel, and the conducting portion and the light source are respectively disposed on opposite sides of the heat dissipating portion, and the side plate is provided with a first locking hole.
  • the width of the channel is greater than the thickness of the heat sink and the light source; the length of the channel is greater than the length of the heat sink for the heat sink and the light source to pass.
  • the first locking hole is opened on the first locking portion or the conducting portion.
  • the present invention further provides a liquid crystal display device including a backlight module and a front frame, wherein the front frame is fixed on the backlight module;
  • the backlight module includes a back plate, a heat dissipation substrate and a light source, and the back plate
  • the substrate includes a heat dissipation portion and a fixing portion connected to the heat dissipation portion.
  • the light source is fixed on the heat dissipation portion, and the fixing portion is fixed on a lower side of the substrate.
  • a reflective sheet is disposed above the substrate, and a light guide plate is disposed above the reflective sheet; a side surface of the light guide plate faces the light emitting diode of the light source; and an optical film group is disposed above the light guide plate.
  • the liquid crystal display device further includes a plastic frame having a support portion and a bearing portion extending perpendicularly from a middle portion of the support portion, the support portion being supported on the light guide plate.
  • the carrying portion is located above the optical film group; the liquid crystal panel is disposed on the carrying portion.
  • the backboard further includes a side plate perpendicularly connected to the substrate, and the connection between the substrate and the side plate is provided with a channel, the side plate includes a conducting portion and a first locking portion vertically connected to the conducting portion
  • the light source and the heat dissipating portion are disposed on one side of the conductive portion via the channel, and the conductive portion and the light source are respectively disposed on opposite sides of the heat dissipating portion, and the first locking hole is opened on the side plate;
  • the front frame is provided with a second locking hole, and a screw fixes the side plate and the front frame through the first locking hole and the second locking hole.
  • the front frame has a second locking portion, the second locking portion is disposed on the first locking portion, and the second locking hole is disposed on the second locking portion;
  • the first locking hole is defined in the first locking portion, and the screw fixes the first locking portion and the second locking portion through the first locking hole and the second locking hole.
  • the front frame has a side wall, and the side wall and the heat dissipation portion are respectively located on opposite sides of the conductive portion; the first locking hole is opened on the conductive portion, the first Two locking holes are formed on the side wall, and the screws fix the side walls and the conductive portion through the first locking holes and the second locking holes.
  • the front frame has a second locking portion, the second locking portion is disposed on the heat dissipation portion of the heat dissipation substrate, and the second locking portion is provided with a second locking hole;
  • the locking portion is downwardly opened, and a screw is inserted into the locking hole of the heat dissipating portion through the second locking hole to fix the second locking portion and the heat dissipating portion.
  • the front frame has a side wall, and the side wall is disposed on the heat dissipation portion of the heat dissipation substrate, and the side wall and the light source are respectively disposed on opposite sides of the heat dissipation portion;
  • a side of the heat dissipating portion is provided with a locking hole, and a screw is inserted into the locking hole of the heat dissipating portion through the second locking hole to fix the second locking portion and the heat dissipating portion.
  • the backlight module and the liquid crystal display device provided by the invention can replace the light source without disassembling other components, and only need to disassemble the heat dissipation substrate and the light source, so that the replacement of the light source does not have any influence on other components, thereby simplifying the simplification.
  • the operation of replacing the light source and improving the product yield of the liquid crystal display device can replace the light source without disassembling other components, and only need to disassemble the heat dissipation substrate and the light source, so that the replacement of the light source does not have any influence on other components, thereby simplifying the simplification.
  • FIG. 1 is a schematic structural view of a liquid crystal display device in the prior art
  • FIG. 2 is a schematic structural view of a first embodiment of a liquid crystal display device of the present invention
  • FIG. 3 is a schematic structural view of a backlight module of the liquid crystal display device of FIG. 2;
  • Figure 4 is a schematic view showing the disassembly of the liquid crystal display device of Figure 2;
  • Figure 5 is a schematic view showing the structure of a second embodiment of the liquid crystal display device of the present invention.
  • Fig. 6 is a schematic exploded view of the liquid crystal display device of Fig. 5;
  • the liquid crystal display device 200 includes a backlight module, a plastic frame 202, a liquid crystal panel 201, and a front frame 250.
  • the backlight module includes a back plate 210 , a heat dissipation substrate 230 , a light source 240 , a reflection sheet 204 , a light guide plate 220 , and an optical film group 203 .
  • the light source 240 includes a printed circuit board 242 and a plurality of light emitting diodes 241 mounted on the printed circuit board 242.
  • the heat dissipation substrate 230 is composed of a heat dissipation portion 231 and a fixing portion 232 that are perpendicularly connected to each other.
  • the light source 240 is fixed to the heat dissipation portion 231, and the printed circuit board 242 is in contact with the heat dissipation portion 231.
  • the backplane 210 includes a substrate 212 and a side plate 260 perpendicularly connected to the substrate 212 .
  • the connection between the substrate 212 and the side plate 260 defines a channel 211 .
  • the width of the channel 211 is greater than the heat dissipation portion.
  • the thickness of the light source 240 and the length of the channel 211 are greater than the length of the heat dissipation portion 231 for the heat dissipation portion 231 and the light source 240 to pass.
  • the side plate includes a conductive portion 261 and a first locking portion 262 that is perpendicularly connected to the conductive portion 261.
  • the fixing portion 232 is fixed to the lower side of the substrate 212 by a first screw 270.
  • the heat dissipating portion 231 and the light source 240 are assembled on one side of the conducting portion 261 via the channel 211, and the conducting portion 261 is
  • the light sources 240 are respectively disposed on opposite sides of the heat dissipation portion 231.
  • the heat dissipation portion 231 is in contact with the conduction portion 261.
  • the first locking portion 262 is located above the light source 240 , and the first locking portion 262 defines a first locking hole 264 .
  • a reflective layer 263 is disposed on the surface of the first locking portion 262 above the light source 240. The reflective layer 263 is configured to reflect the light emitted by the light source 240 to improve the light utilization efficiency of the light source 240.
  • the reflective sheet 204 is disposed above the substrate 212.
  • the light guide plate 220 is disposed above the reflective sheet 204, and a side surface of the light guide plate 220 faces the light emitting diode 241 of the light source 240.
  • the backlight module has only one light source 240.
  • the light source 240 may be multiple, which are respectively opposite to the side of the light guide plate 220.
  • the optical film group 203 is disposed above the light guide plate 220.
  • the plastic frame 202 has a supporting portion 2021 and a bearing portion 2023 extending from a central portion of the supporting portion 2021 .
  • the supporting portion 2021 is supported on the light guide plate 220 , and
  • the carrying portion 2023 is located above the optical film group 203.
  • the liquid crystal panel 201 is disposed on the carrying portion 2023.
  • the front frame 250 has a second locking portion 252.
  • One end of the second locking portion 252 is connected to a clamping portion 251.
  • the other end of the second locking portion 252 is perpendicularly connected to a sidewall 253.
  • a second locking hole is defined in the second locking portion 252, and a second locking hole 264 is inserted into the first locking hole 264 through the second locking hole 264 to fix the second locking portion 252 to the side plate.
  • the first locking portion 262 of the 260 fixes the back plate 210 and the front frame 250 to fix the heat dissipation portion 231 of the heat dissipation substrate 230 to the front frame 250.
  • the first locking hole 264 can also be disposed on the conductive portion 261.
  • the second locking hole is disposed on the sidewall 253, and the second screw 280 passes through the fixed conductive portion.
  • the side plate 260 is fixed to the front frame 250 by the 261 and the side wall 253.
  • One end of the clamping portion 251 connected to the second locking portion 252 is located on the supporting portion 2021 of the plastic frame 202, and the other end thereof is located above the carrying portion 2023, and is clamped together with the carrying portion 2023.
  • the side wall 253 is located outside the conductive portion 261 of the side plate 260.
  • the reflective plate 204, the light guide plate 220, and the optical film group 203 are sequentially disposed on the substrate 212, and the light source 240 is fixed on the heat dissipation portion 231 of the heat dissipation substrate 230;
  • the heat dissipating portion 231 and the light source 240 are inserted into the channel 211, and the fixing portion 232 of the heat dissipating substrate 230 is fixed under the substrate 212 by the first screw 270; finally, the plastic frame 202 and the liquid crystal panel 201 are sequentially mounted;
  • a frame 250 is secured to the side panel 260.
  • the replacement of the light source 240 does not exert any influence on other components in the liquid crystal display device 200, thereby simplifying the operation process of replacing the light source 240 and improving the product yield of the liquid crystal display device 200.
  • FIG. 5 is a schematic structural diagram of a second embodiment of a liquid crystal display device according to the present invention.
  • the liquid crystal display device 300 of the present embodiment is different from the liquid crystal display device 200 of the first embodiment in that the back plate is
  • the 310 has only the substrate 312, and the heat dissipation portion 331 of the heat dissipation substrate is provided with a locking hole 333.
  • the second locking portion 352 of the front frame 350 is disposed on the heat dissipating portion 331 , and the second screw 380 is inserted into the locking hole 333 of the heat dissipating portion 331 through the second locking hole 354 to thereby insert the front frame 350
  • the heat dissipation portion 331 is fixed to the heat dissipation portion 331
  • the side portion 353 is located outside the heat dissipation portion 331 and is in contact with the heat dissipation portion 331 .
  • the locking hole 333 can also be disposed on the side of the heat dissipation portion 331 .
  • the second locking hole 354 is disposed on the sidewall 353 .
  • the replacement of the light source 340 does not have any influence on other components in the liquid crystal display device 300, thereby simplifying the operation of replacing the light source 340 and improving the product yield of the liquid crystal display device 300.
  • the heat dissipation portion 331 of the heat dissipation substrate 330 directly contacts the sidewall 353 of the front frame 350, thereby improving the heat dissipation efficiency of the heat dissipation portion 331.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)

Abstract

一种背光模组及液晶显示装置，所述背光模组包括背板（210）、散热基板（230）及光源（240），所述背板（210）具有基板（212），所述散热基板（230）包括散热部（231）及与散热部（231）连接的固定部（232），所述光源（240）固定在散热部（231）上，所述固定部（232）固定在所述基板（212）的下侧；前框（250）与散热部（231）固定。当液晶显示装置需要更换光源时，无需拆卸液晶显示装置中其他组件，只需将散热基板和光源拆卸下来即可，因此更换光源操作不会对其他元件产生任何影响，从而简化了更换光源的操作过程，并提高了液晶显示装置的产品良率。

Description

背光模组及液晶显示装置
技术领域
本发明涉及液晶显示技术领域，尤其是涉及一种背光模组及液晶显示装置。
背景技术
参见图1，现有的液晶显示装置100一般由以下元件组成：前框101、液晶面板102、胶框103、光学膜片组104、导光板105、反射板106、光源107、散热铝基板108以及背板109。所述光源107由印刷电路板和安装于该印刷电路板上的发光二极管组成，所述散热铝基板108由相互垂直连接的散热部及固定部组成，所述光源107安装于该散热铝基板108的散热部的内表面上，所述散热铝基板108的固定部置于所述背板109上，并通过螺钉110与所述背板109固定。所述反射板106设置在所述背板109内表面和所述散热铝基板108的固定部上。所述导光板105安装在所述反射板106上，且所述光源107位于该导光板105的一侧。所述胶框103具有连接部及支撑部，所述连接部固定在散热铝基板108的外表面，所述支撑部位于光学膜片104的边缘上方，且所述液晶面板102的边缘位于支撑部上。前框通过螺钉111与胶框103及背板109固定，并使液晶面板102的边缘加持在前框101与胶框103间。
组装时，首先将光源107安装在散热铝基板108的散热部内表面上，并将散热铝基板108固定在背板109上；然后依次将反射板106、导光板105及光学膜片104叠置在背板109上，随后将胶框103与散热铝基板108及背板109固定，并将液晶面板102置于胶框103的支撑部上，最后将前框101与胶框103及背板109固定。
当光源107出现故障需要更换时，首先需要将前框101从液晶显示装置100中拆卸下来，然后依次将液晶面板102、胶框103、光学膜片组104、导光板105以及反射板106拆卸下来，最后才能将需要更换的光源107从散热铝基板108上拆卸下来以便安装新的光源107。安装新的光源107之后还需依次安装所述反射板106、导光板105、光学膜片组104、胶框103，液晶面板102、以及前框101。
现有的液晶显示装置100，在更换光源107过程中需要对其他无需更换的元件进行拆卸与安装，更换光源107的操作比较复杂，并且也可能导致对这些无需更换的元件产生不良影响，从而降低液晶显示装置100的产品良率。
发明内容
本发明的主要目的在于提供一种背光模组及液晶显示装置，其更换光源的操作简单，并避免对其他无需更换的元件产生影响，提高产品良率。
为了达到上述目的，本发明提出一种背光模组，所述背光模组包括背板、散热基板及光源，所述背板具有基板，所述散热基板包括散热部及与散热部连接的固定部，所述光源固定在散热部上，所述固定部固定在所述基板的下侧。
优选地，所述光源包括印刷电路板及安装于该印刷电路板上的若干个发光二极管，所述印刷电路板与所述散热部接触。
优选地，所述基板上方设置有反射片，反射片的上方设置有导光板；所述导光板的一侧面正对所述光源的发光二极管；所述导光板上方设置有光学膜片组。
优选地，所述背板还包括与基板垂直连接的侧板，且所述基板与侧板的连接处开设有通道，所述侧板包括传导部及与传导部垂直连接的第一锁固部，所述光源及散热部经由通道设置在传导部的一侧，且所述传导部和所述光源分别设置在散热部的相对两侧，所述侧板上开设有第一锁固孔。
优选地，所述通道的宽度大于散热部与光源的厚度和；所述通道的长度大于散热部的长度，以供散热部和光源通过。
优选地，所述第一锁固孔开设在所述第一锁固部或所述传导部上。
本发明另提出一种背光模组，所述背光模组包括背板、散热基板及光源，所述背板具有基板，所述散热基板包括散热部及与散热部连接的固定部，所述光源固定在散热部上，所述固定部固定在所述基板的下侧；所述散热部上开设有锁固孔。
优选地，所述光源包括印刷电路板及安装于该印刷电路板上的若干个发光二极管，所述印刷电路板与所述散热部接触。
优选地，所述基板上方设置有反射片，反射片的上方设置有导光板；所述导光板的一侧面正对所述光源的发光二极管；所述导光板上方设置有光学膜片组。
优选地，所述背板还包括与基板垂直连接的侧板，且所述基板与侧板的连接处开设有通道，所述侧板包括传导部及与传导部垂直连接的第一锁固部，所述光源及散热部经由通道设置在传导部的一侧，且所述传导部和所述光源分别设置在散热部的相对两侧，所述侧板上开设有第一锁固孔。
优选地，所述通道的宽度大于散热部与光源的厚度和；所述通道的长度大于散热部的长度，以供散热部和光源通过。
优选地，所述第一锁固孔开设在所述第一锁固部或所述传导部上。
本发明另提出一种液晶显示装置，其包括背光模组及前框，所述前框固定在所述背光模组上；所述背光模组包括背板、散热基板及光源，所述背板包括基板，所述散热基板包括散热部及与散热部连接的固定部，所述光源固定在散热部上，所述固定部固定在所述基板的下侧。
优选地，所述基板上方设置有反射片，反射片的上方设置有导光板；所述导光板的一侧面正对所述光源的发光二极管；所述导光板上方设置有光学膜片组。
优选地，所述的液晶显示装置还包括胶框和液晶面板，所述胶框具有支撑部及自所述支撑部中部垂直延伸形成的承载部，所述支撑部支撑在所述导光板上，且所述承载部位于所述光学膜片组的上方；所述液晶面板设置在所述承载部上。
优选地，所述背板还包括与基板垂直连接的侧板，且所述基板与侧板的连接处开设有通道，所述侧板包括传导部及与传导部垂直连接的第一锁固部，所述光源及散热部经由通道设置在传导部的一侧，且所述传导部和所述光源分别设置在散热部的相对两侧，所述侧板上开设有第一锁固孔；所述前框开设有第二锁固孔，一螺钉通过所述第一锁固孔及第二锁固孔将侧板与前框固定。
优选地，所述前框具有第二锁固部，该第二锁固部设置在所述第一锁固部上，且所述第二锁固孔设置在所述第二锁固部上；所述第一锁固孔开设在所述第一锁固部，所述螺钉通过所述第一锁固孔及第二锁固孔将第一锁固部与第二锁固部固定。
优选地，所述前框具有侧壁，且所述侧壁与所述散热部分别位于所述传导部的相对两侧；所述第一锁固孔开设在所述传导部上，所述第二锁固孔开设在所述侧壁上，所述螺钉通过所述第一锁固孔及第二锁固孔将侧壁与传导部固定。
优选地，所述前框具有第二锁固部，该第二锁固部设置在所述散热基板的散热部上，所述第二锁固部上开设有第二锁固孔；所述散热部向下开设有锁固孔，一螺钉经过所述第二锁固孔***该散热部的锁固孔将第二锁固部与散热部固定。
优选地，所述前框具有侧壁，该侧壁设置在所述散热基板的散热部上，且所述侧壁与所述光源分别设置在散热部的相对两侧；所述侧壁上开设有第二锁固孔；所述散热部的侧面开设有锁固孔，一螺钉经过所述第二锁固孔***该散热部的锁固孔将第二锁固部与散热部固定。
本发明所提供的背光模组及液晶显示装置，更换光源时，无需拆卸其他组件，只需将散热基板和光源拆卸下来即可，因此更换光源操作不会对其他元件产生任何影响，从而简化了更换光源的操作过程，并提高了液晶显示装置的产品良率。
附图说明
图1是现有技术中液晶显示装置的结构示意图；
图2是本发明的液晶显示装置的第一实施例的结构示意图；
图3是图2的液晶显示装置的背光模组的结构示意图；
图4是图2的液晶显示装置的拆卸示意图；
图5是本发明的液晶显示装置的第二实施例的结构示意图；
图6是图5的液晶显示装置的拆卸示意图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
参见图2，其为本发明的液晶显示装置的第一实施例的结构示意图，该液晶显示装置200包括背光模组、胶框202、液晶面板201及前框250。
请参阅图2及图3，所述背光模组包括背板210、散热基板230、光源240、反射片204、导光板220及光学膜片组203。所述光源240包括印刷电路板242及安装于该印刷电路板242上的若干个发光二极管241。所述散热基板230由相互垂直连接的散热部231和固定部232组成，光源240固定在所述散热部231上，且所述印刷电路板242与所述散热部231接触。
请一并参阅图4，所述背板210包括基板212及与基板212垂直连接的侧板260，所述基板212与侧板260的连接处开设有通道211，该通道211的宽度大于散热部231与光源240的厚度和、该通道211的长度大于散热部231的长度，以供散热部231和光源240通过。所述侧板包括传导部261及与该传导部261垂直连接的第一锁固部262。所述固定部232通过一第一螺钉270固定在所述基板212的下侧，所述散热部231及光源240经由该通道211组装在传导部261的一侧，且所述传导部261与所述光源240分别设置在散热部231的相对两侧，优选地，所述散热部231与所述传导部261接触。所述第一锁固部262位于所述光源240的上方，并且该第一锁固部262开设有第一锁固孔264。所述第一锁固部262位于该光源240上方的表面上设置有反射层263，该反射层263用于反射光源240发出的光线，以提高光源240的光利用率。
所述反射片204设置在该基板212的上方，所述导光板220设置在所述反射片204的上方，且所述导光板220的一侧面正对所述光源240的发光二极管241。本实施例仅以该背光模组具有一个光源240说明，当然其他实施方式中，所述光源240可为多个，其分别正对所述导光板220的侧面。所述光学膜片组203设置在所述导光板220的上方。
请一并参阅图2至图4，所述胶框202具有支撑部2021及自所述支撑部2021中部垂直延伸形成的承载部2023，所述支撑部2021支撑在所述导光板220上，且所述承载部2023位于所述光学膜片组203的上方。所述液晶面板201设置在所述承载部2023上。
所述前框250具有第二锁固部252，所述第二锁固部252的一端连接一夹持部251，该第二锁固部252的另一端垂直连接一侧壁253。所述第二锁固部252上开设有第二锁固孔，一第二螺钉280经过该第二锁固孔***第一锁固孔264将该第二锁固部252固定在所述侧板260的第一锁固部262上，使背板210与前框250固定，从而使散热基板230的散热部231与前框250固定。当然，在其他实施例中，所述第一锁固孔264也可设置在传导部261上，相应的，所述第二锁固孔设置在侧壁253上，第二螺钉280通过固定传导部261与侧壁253而将侧板260与前框250固定。
所述夹持部251与第二锁固部252连接的一端位于胶框202的支撑部2021上，其另一端位于所述承载部2023的上方，且与所述承载部2023共同夹持所述液晶面板201的边缘。所述侧壁253位于所述侧板260的传导部261的外侧。
安装时，首先将所述反射板204、导光板220、光学膜片组203依次设置在所述基板212上，并将所述光源240固定在所述散热基板230的散热部231上；然后将散热部231及光源240由通道211***，并通过第一螺钉270将所述散热基板230的固定部232固定在基板212的下方；最后依次安装所述胶框202及液晶面板201；并将前框250固定在所述侧板260上。
当光源240出现故障需要更换时，取下所述第一螺丝270，即可将散热基板230及光源240拆卸下来，然后更换光源240，而无需拆卸液晶显示装置200中的其他元件。因此，本实施例中，更换光源240不会对液晶显示装置200中的其他元件产生任何影响，从而简化了更换光源240的操作过程，并提高了液晶显示装置200的产品良率。
参见图5及图6，其为本发明的液晶显示装置的第二实施例的结构示意图，本实施例的液晶显示装置300与第一实施例的液晶显示装置200的区别在于，所述背板310仅具有基板312，所述散热基板的散热部331向下开设有锁固孔333。所述前框350的第二锁固部352设置在所述散热部331上，所述第二螺钉380经过第二锁固孔354***所述散热部331的锁固孔333从而将前框350固定在所述散热部331上，且所述侧部353位于散热部331的外侧且与散热部331接触。当然，在其他实施例中，所述锁固孔333也可设置在散热部331的侧面，相应的，所述第二锁固孔354设置在侧壁353上。
更换光源340时，取下第一螺钉370及第二螺钉380，即可将散热基板及光源340拆卸下来以更换光源340，而无需拆卸液晶显示装置300中的其他元件。因此，本实施例中，更换光源340不会对液晶显示装置300中的其他元件产生任何影响，从而简化了更换光源340的操作过程，并提高了液晶显示装置300的产品良率。此外，所述散热基板330的散热部331直接与前框350的侧壁353接触，从而提高了散热部331的散热效率。
应当理解的是，以上仅为本发明的优选实施例，不能因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (20)

  1. 一种背光模组，其特征在于，所述背光模组包括背板、散热基板及光源，所述背板具有基板，所述散热基板包括散热部及与散热部连接的固定部，所述光源固定在散热部上，所述固定部固定在所述基板的下侧。
  2. 根据权利要求1所述的背光模组，其特征在于，所述光源包括印刷电路板及安装于该印刷电路板上的若干个发光二极管，所述印刷电路板与所述散热部接触。
  3. 根据权利要求1所述的液晶显示装置，其特征在于，所述基板上方设置有反射片，反射片的上方设置有导光板；所述导光板的一侧面正对所述光源的发光二极管；所述导光板上方设置有光学膜片组。
  4. 根据权利要求1所述的背光模组，其特征在于，所述背板还包括与基板垂直连接的侧板，且所述基板与侧板的连接处开设有通道，所述侧板包括传导部及与传导部垂直连接的第一锁固部，所述光源及散热部经由通道设置在传导部的一侧，且所述传导部和所述光源分别设置在散热部的相对两侧，所述侧板上开设有第一锁固孔。
  5. 根据权利要求4所述的背光模组，其特征在于，所述通道的宽度大于散热部与光源的厚度和；所述通道的长度大于散热部的长度，以供散热部和光源通过。
  6. 根据权利要求4所述的背光模组，其特征在于，所述第一锁固孔开设在所述第一锁固部或所述传导部上。
  7. 一种背光模组，其特征在于，所述背光模组包括背板、散热基板及光源，所述背板具有基板，所述散热基板包括散热部及与散热部连接的固定部，所述光源固定在散热部上，所述固定部固定在所述基板的下侧； 所述光源包括印刷电路板及安装于该印刷电路板上的若干个发光二极管，所述印刷电路板与所述散热部接触。
  8. 根据权利要求7所述的背光模组，其特征在于，所述散热部上开设有锁固孔。
  9. 根据权利要求7所述的液晶显示装置，其特征在于，所述基板上方设置有反射片，反射片的上方设置有导光板；所述导光板的一侧面正对所述光源的发光二极管；所述导光板上方设置有光学膜片组。
  10. 根据权利要求7所述的背光模组，其特征在于，所述背板还包括与基板垂直连接的侧板，且所述基板与侧板的连接处开设有通道，所述侧板包括传导部及与传导部垂直连接的第一锁固部，所述光源及散热部经由通道设置在传导部的一侧，且所述传导部和所述光源分别设置在散热部的相对两侧，所述侧板上开设有第一锁固孔。
  11. 根据权利要求10所述的背光模组，其特征在于，所述通道的宽度大于散热部与光源的厚度和；所述通道的长度大于散热部的长度，以供散热部和光源通过。
  12. 据权利要求10所述的背光模组，其特征在于，所述第一锁固孔开设在所述第一锁固部或所述传导部上。
  13. 一种液晶显示装置，其包括背光模组及前框，所述前框固定在所述背光模组上；其特征在于，所述背光模组包括背板、散热基板及光源，所述背板包括基板，所述散热基板包括散热部及与散热部连接的固定部，所述光源固定在散热部上，所述固定部固定在所述基板的下侧。
  14. 根据权利要求13所述的液晶显示装置，其特征在于，所述光源包括印刷电路板及安装于该印刷电路板上的若干个发光二极管，所述印刷电路板与所述散热部接触。
  15. 根据权利要求14所述的液晶显示装置，其特征在于，还包括胶框和液晶面板，所述胶框具有支撑部及自所述支撑部中部垂直延伸形成的承载部，所述支撑部支撑在所述导光板上，且所述承载部位于所述光学膜片组的上方；所述液晶面板设置在所述承载部上。
  16. 根据权利要求13所述的液晶显示装置，其特征在于，所述背板还包括与基板垂直连接的侧板，且所述基板与侧板的连接处开设有通道，所述侧板包括传导部及与传导部垂直连接的第一锁固部，所述光源及散热部经由通道设置在传导部的一侧，且所述传导部和所述光源分别设置在散热部的相对两侧，所述侧板上开设有第一锁固孔；所述前框开设有第二锁固孔，一螺钉通过所述第一锁固孔及第二锁固孔将侧板与前框固定。
  17. 根据权利要求16所述的液晶显示装置，其特征在于，所述前框具有第二锁固部，该第二锁固部设置在所述第一锁固部上，且所述第二锁固孔设置在所述第二锁固部上；所述第一锁固孔开设在所述第一锁固部，所述螺钉通过所述第一锁固孔及第二锁固孔将第一锁固部与第二锁固部固定。
  18. 根据权利要求16所述的液晶显示装置，其特征在于，所述前框具有侧壁，且所述侧壁与所述散热部分别位于所述传导部的相对两侧；所述第一锁固孔开设在所述传导部上，所述第二锁固孔开设在所述侧壁上，所述螺钉通过所述第一锁固孔及第二锁固孔将侧壁与传导部固定。
  19. 根据权利要求13所述的液晶显示装置，其特征在于，所述前框具有第二锁固部，该第二锁固部设置在所述散热基板的散热部上，所述第二锁固部上开设有第二锁固孔；所述散热部向下开设有锁固孔，一螺钉经过所述第二锁固孔***该散热部的锁固孔将第二锁固部与散热部固定。
  20. 根据权利要求13所述的液晶显示装置，其特征在于，所述前框具有侧壁，该侧壁设置在所述散热基板的散热部上，且所述侧壁与所述光源分别设置在散热部的相对两侧；所述侧壁上开设有第二锁固孔；所述散热部的侧面开设有锁固孔，一螺钉经过所述第二锁固孔***该散热部的锁固孔将第二锁固部与散热部固定。
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CN108459434A (zh) * 2017-12-29 2018-08-28 重庆市中光电显示技术有限公司 一种背光模组
CN114114757A (zh) * 2021-12-13 2022-03-01 中航华东光电有限公司 大尺寸液晶显示模块架构和组装方法
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