WO2014040308A1 - 液晶显示装置 - Google Patents

液晶显示装置 Download PDF

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Publication number
WO2014040308A1
WO2014040308A1 PCT/CN2012/081710 CN2012081710W WO2014040308A1 WO 2014040308 A1 WO2014040308 A1 WO 2014040308A1 CN 2012081710 W CN2012081710 W CN 2012081710W WO 2014040308 A1 WO2014040308 A1 WO 2014040308A1
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WO
WIPO (PCT)
Prior art keywords
liquid crystal
disposed
crystal display
printed circuit
plate
Prior art date
Application number
PCT/CN2012/081710
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English (en)
French (fr)
Inventor
黄冲
Original Assignee
深圳市华星光电技术有限公司
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
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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 US13/699,729 priority Critical patent/US9030642B2/en
Publication of WO2014040308A1 publication Critical patent/WO2014040308A1/zh

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Classifications

    • 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
    • G02B6/009—Positioning aspects of the light source in 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
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133612—Electrical details
    • 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, and in particular to a liquid crystal display device. Background technique
  • Liquid crystal display has many advantages such as thin body, power saving, and no radiation, and has been widely used.
  • Most of the liquid crystal display devices on the market are backlight-type TFT-LCD (Thin Film Transistor-LCD), which includes a liquid crystal panel and a backlight module.
  • the working principle of the liquid crystal panel is to place liquid crystal molecules in two parallel glass. There are many vertical and horizontal small wires between the two glass plates.
  • the liquid crystal molecules are controlled to change direction by energization or not, and the light of the backlight module is refracted. Picture. Since the liquid crystal panel itself does not emit light, the light source provided by the backlight module is required to display the image normally. Therefore, the backlight module becomes one of the key components of the liquid crystal display device.
  • the backlight module is divided into a side-in backlight module and a direct-lit backlight module according to different incident positions of the light source.
  • a light source such as a CCFL (Cold Cathode Fluorescent Lamp) or an LED (Light Emitting Diode) is disposed behind the liquid crystal panel, and a surface light source is directly formed and supplied to the liquid crystal panel.
  • CCFL Cold Cathode Fluorescent Lamp
  • LED Light Emitting Diode
  • the side-lit backlight module is provided with an LED light bar (lightbar) disposed at the edge of the back panel behind the liquid crystal panel, and the light emitted by the LED strip enters the light guide plate from the light incident surface of the light guide plate, and is reflected and After being diffused, it is emitted from the light-emitting surface of the light guide plate to form a surface light source to be supplied to the liquid crystal panel.
  • LED light bar lightbar
  • the conventional liquid crystal display device includes: a backlight module 100 , a plastic frame 300 disposed on the backlight module 100 , a liquid crystal display panel 500 disposed on the plastic frame 300 , and a liquid crystal display panel 500 .
  • the backlight module 100 includes: a back plate 102, a light bar 104 mounted on the back plate 102, a reflective plate 106 disposed on the back plate 102, a light guide plate 107, and an optical component 108.
  • the light bar 104 of the backlight module 100 is generally attached or fixed by screws (not shown) to the back plate 102. When the light bar 104 is abnormal or damaged and needs to be repaired and replaced, the heat sink tape is attached. Or the way that the screw lock is attached to the fixed light bar is difficult to disassemble and assemble, which is not conducive to improving work efficiency. Summary of the invention
  • the present invention provides a liquid crystal display device, including: a backlight module, a plastic frame disposed on the backlight module, a liquid crystal display panel disposed on the plastic frame, and a front frame disposed on the liquid crystal display panel
  • the backlight module includes: a back plate, a light bar mounted on the back plate, and a graphite piece disposed between the back plate and the light bar
  • the light bar includes a metal-based printed circuit board with an inverted U shape and installation And electrically connected to the plurality of LED lamps on the metal-based printed circuit board, the metal-based printed circuit board is mounted on the backboard, and the light bar is mounted on the backboard.
  • the metal-based printed circuit board includes opposite first and second sidewalls and a third sidewall connecting the first and second sidewalls, the first sidewall and the second sidewall being disposed in parallel with each other, The three sidewalls are perpendicular to the first and second sidewalls, and the first, second and third sidewalls define a U-shaped groove, and the LED lamp is mounted and electrically connected to the metal-based printed circuit board.
  • the outer side of a side wall is opposite first and second sidewalls and a third sidewall connecting the first and second sidewalls, the first sidewall and the second sidewall being disposed in parallel with each other,
  • the three sidewalls are perpendicular to the first and second sidewalls, and the first, second and third sidewalls define a U-shaped groove, and the LED lamp is mounted and electrically connected to the metal-based printed circuit board.
  • the graphite sheet is attached to the inner side of the first side wall of the metal-based printed circuit board.
  • the graphite sheet is disposed in a U shape corresponding to the U-shaped groove, and is received in the U-shaped groove.
  • the backboard includes a bottom plate and a side plate connected to the bottom plate, and the side plate forms an accommodation space with the bottom plate.
  • the metal-based printed circuit board is mounted on the side plate of the backboard through a U-shaped slot.
  • the backlight module further includes a reflective plate disposed in the accommodating space, a light guide plate disposed on the reflective plate, and an optical component disposed on the light guide plate, wherein the reflective plate is disposed on the bottom plate of the back plate on.
  • the plastic frame corresponding to the liquid crystal display panel is provided with a receiving portion, and the liquid crystal display panel is received in the receiving portion.
  • the liquid crystal display panel includes a TFT substrate, a CF substrate that is disposed to face the TFT substrate, a liquid crystal disposed between the TFT substrate and the CF substrate, a first polarizer attached to the TFT substrate away from the surface of the CF substrate, and attached to the TFT substrate.
  • the CF substrate is away from the second polarizer on the surface of the TFT substrate.
  • the liquid crystal display panel further includes a sealant frame disposed at an edge of the CF substrate and a spacer disposed in the seal frame.
  • the present invention also provides a liquid crystal display device, comprising: a backlight module, a plastic frame disposed on the backlight module, a liquid crystal display panel disposed on the plastic frame, and a front frame disposed on the liquid crystal display panel, the backlight module
  • the group includes: a backboard, a light strip mounted on the backboard, and a graphite sheet disposed between the backboard and the light strip, the light strip comprising a metal-based printed circuit board in an inverted U shape and mounted and electrically connected a plurality of LED lights on the metal-based printed circuit board, the metal-based printed circuit board is mounted on the backboard, and the light bar is mounted on the backboard;
  • the metal-based printed circuit board includes opposite first and second sidewalls and a third sidewall connecting the first and second sidewalls.
  • the first sidewall and the second sidewall are parallel to each other.
  • the third sidewall is perpendicular to the first and second sidewalls, and the first, second and third sidewalls define a U-shaped groove, and the LED lamp is mounted and electrically connected to the metal-based printed circuit board First side wall
  • the graphite sheet is attached to the inner side of the first side wall of the metal-based printed circuit board; wherein the back plate comprises a bottom plate and a side plate connected to the bottom plate, the side plate and the bottom plate form an accommodation space ;
  • the metal-based printed circuit board is disposed on the side plate of the backplane through the U-shaped slot; wherein the backlight module further includes a reflective plate disposed in the accommodating space and disposed on the reflective plate The light guide plate and the optical component disposed on the light guide plate, the reflective plate is disposed on the bottom plate of the back plate;
  • the liquid crystal display panel is disposed in the accommodating portion, and the liquid crystal display panel is disposed in the accommodating portion;
  • the liquid crystal display panel includes a TFT substrate, a CF substrate that is disposed to face the TFT substrate, a liquid crystal disposed between the TFT substrate and the CF substrate, and a first polarizer attached to the TFT substrate and away from the surface of the CF substrate. a second polarizer attached to the CF substrate away from the surface of the TFT substrate;
  • the liquid crystal display panel further includes a sealant frame disposed at an edge of the CF substrate and a spacer disposed in the sealant frame.
  • a liquid crystal display device is characterized in that a light bar is stuck on a back plate by an inverted U-shaped metal-based printed circuit board, and a graphite sheet is disposed between the light bar and the back plate, and the graphite is passed through the graphite.
  • the heat is transmitted to the back plate for heat dissipation, which avoids the difficulty in assembly or disassembly caused by the way of fixing the heat strip or fixing the light strip by the screw, and provides a simple assembly or disassembly method, saving working time.
  • FIG. 1 is a schematic view showing the assembly structure of a conventional liquid crystal display device
  • FIG. 2 is a schematic view showing the assembly structure of a liquid crystal display device of the present invention.
  • 3 is a schematic perspective structural view of a light bar of a liquid crystal display device of the present invention
  • 4 is a schematic cross-sectional view of a light bar of a liquid crystal display device of the present invention
  • Figure 5 is a cross-sectional view showing a preferred embodiment of a graphite strip attached to a light bar of a liquid crystal display device of the present invention
  • Fig. 6 is a cross-sectional view showing still another preferred embodiment of the graphite strip attached to the light bar of the liquid crystal display device of the present invention. detailed description
  • the liquid crystal display device provided by the present invention includes: a backlight module
  • the backlight module 2 includes: a back plate 22, a light bar 24 mounted on the back plate 22, a graphite sheet 26 disposed between the back plate 22 and the light bar 24, and a reflective plate 27 disposed on the back plate 22.
  • the reflected light is disposed directly or through the reflection plate 27 to enter the light guide plate 28, and then passes through the optical assembly 29 to provide the liquid crystal display panel 6 with a uniform surface light source of brightness.
  • the light bar 24 includes an inverted U-shaped metal-based printed circuit board 242 and a plurality of LED lights 244 mounted and electrically connected to the metal-based printed circuit board 242.
  • the metal-based printed circuit board 242 is On the backboard 22, the light bar 24 is further mounted on the backboard 22.
  • the metal-based printed circuit board 242 includes opposite first and second sidewalls 2422, 2424 and a third sidewall 2426 connecting the first and second sidewalls 2422, 2424, the first sidewall 2422 and The second sidewalls 2424 are disposed in parallel with each other.
  • the third sidewalls 2426 are perpendicular to the first and second sidewalls 2422 and 2424.
  • the first, second, and third sidewalls 2422, 2424, and 2426 are surrounded by a U.
  • the LED lamp 244 is mounted and electrically connected to the outside of the first sidewall 2422 of the metal-based printed circuit board 242.
  • the graphite sheet 26 is attached to the inner side of the first side wall 2422 of the metal-based printed circuit board 242.
  • the graphite sheet 26 can conduct heat radiated from the light bar 24 to the back plate 22, thereby dissipating heat, thereby ensuring normal operation of the backlight module.
  • the backboard 22 includes a bottom plate 222 and a side plate 224 connected to the bottom plate 222.
  • the side plate 224 is connected to the bottom plate 222.
  • the 224 and the bottom plate 222 form an accommodating space 226.
  • the reflective plate 27 of the backlight module 2 and the optical component 29 of the light guide plate 28 are received in the accommodating space 226, and the reflective plate 27 is disposed on the back plate 22 On the bottom plate 222.
  • the metal-based printed circuit board 242 is mounted on the side plate 224 of the back plate 22 through the U-shaped groove 2428.
  • the plastic frame 4 is disposed in the accommodating portion 46, and the liquid crystal display panel 6 is disposed in the accommodating portion 46.
  • the liquid crystal display panel 6 includes a TFT substrate 62, a CF substrate 64 that is disposed to face the TFT substrate 62, a liquid crystal (not shown) provided between the TFT substrate 62 and the CF substrate 64, and is attached to the TFT substrate 62 away from each other.
  • the liquid crystal display panel 6 further includes a sealant frame (not shown) provided at an edge of the CF substrate 64 and a spacer (not shown) provided in the sealant frame.
  • FIG. 6 a cross-sectional view of another preferred embodiment of a graphite strip attached to a light bar of a liquid crystal display device of the present invention is provided.
  • the graphite sheet 26 corresponds to a U-shaped groove of the metal-based printed circuit board 242.
  • the 2428 is disposed in a U shape and is accommodated in the U-shaped groove 2428 to achieve the same technical effects as the previous embodiment.
  • the light bar is stuck on the back plate by an inverted U-shaped metal-based printed circuit board, and a graphite sheet is disposed between the light bar and the back plate, and heat is transmitted through the graphite sheet.
  • the heat dissipation to the backboard avoids the difficulty in assembly or disassembly caused by the use of the heat-dissipating glue or the screw to fix the light bar, and provides a simple assembly or disassembly method, which saves working time.

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

Abstract

提供一种液晶显示装置，其包括：背光模组（2）、设于背光模组（2）上的胶框（4）、设于胶框（4）上的液晶显示面板（6）及设于液晶显示面板（6）上的前框（8）。背光模组（2）包括：背板（22）、安装于背板（22）上的灯条（24）及设于背板（22）与灯条（24）之间的石墨片（26），灯条（24）包括呈倒U形金属基印刷电路板（242）上的多个LED灯（244），金属基印刷电路板（242）卡设于背板（22）上，进而将灯条（24）安装于背板（22）上。所提供的液晶显示装置，通过倒U形的金属基印刷电路板将灯条卡设于背板上，并在灯条和背板之间设置石墨片用于散热，避免了采用散热胶贴附或螺钉锁附固定灯条的方式造成的组装或拆卸困难，提供了较简单的组装或拆卸方式，节约了作业成本。

Description

液晶显示装置 技术领域
本发明涉及液晶显示领域， 尤其涉及一种液晶显示装置。 背景技术
液晶显示器（LCD, Liquid Crystal Display )具有机身薄、 省电、 无辐 射等众多优点， 得到了广泛的应用。 现有市场上的液晶显示装置大部分为 背光型的 TFT-LCD ( Thin Film Transistor-LCD, 薄膜晶体管 LCD ) , 其包 括液晶面板及背光模组 ( backlight module ) 。 液晶面板的工作原理是在两 片平行的玻璃当中放置液晶分子， 两片玻璃中间有许多垂直和水平的细小 电线， 通过通电与否来控制液晶分子改变方向， 将背光模组的光线折射出 来产生画面。 由于液晶面板本身不发光， 需要借由背光模组提供的光源来 正常显示影像， 因此， 背光模组成为液晶显示装置的关键零组件之一。 背 光模组依照光源入射位置的不同分成侧入式背光模组与直下式背光模组两 种。 直下式背光模组是将发光光源例如 CCFL(Cold Cathode Fluorescent Lamp, 阴极萤光灯管)或 LED(Light Emitting Diode, 发光二极管)设置在液 晶面板后方， 直接形成面光源提供给液晶面板。 而侧入式背光模组是将发 光光源 LED灯条（lightbar )设于液晶面板侧后方的背板边缘， LED灯条发 出的光线从导光板一侧的入光面进入导光板， 经反射和扩散后从导光板出 光面出射， 以形成面光源提供给液晶面板。
如图 1 所示， 现有的液晶显示装置包括： 背光模组 100, 设于背光模 100上的胶框 300、 设于胶框 300上的液晶显示面板 500及设于液晶显示 面板 500上的前框 700。 背光模组 100 包括： 背板 102、 安装于背板 102 上的灯条 104及设于背板 102上的反射板 106、 导光板 107及光学组件 108。 背光模组 100的灯条 104—般散热胶 109贴附或螺钉（未图示）锁 附固定于背板 102上， 当灯条 104出现异常或损坏需要维修更换时， 釆用 散热胶贴附或螺钉锁附固定灯条的方式均较难拆卸和组装， 不利于提升作 业效率。 发明内容
本发明的目的在于提供一种液晶显示装置， 其将灯条上的金属基印刷 电路板设计为倒 U 形， 并在灯条与背板之间设置石墨片， 方便组装或拆 卸， 节约作业时间。
为实现上述目的， 本发明提供一种液晶显示装置， 其包括： 背光模 组、 设于背光模组上的胶框、 设于胶框上的液晶显示面板及设于液晶显示 面板上的前框， 所述背光模组包括： 背板、 安装于背板上的灯条及设于背 板与灯条之间的石墨片， 所述灯条包括呈倒 U形的金属基印刷电路板及安 装并电性连接于该金属基印刷电路板上的数个 LED 灯， 所述金属基印刷 电路板卡设于背板上， 进而将灯条安装于背板上。
所述金属基印刷电路板包括相对设置的第一与第二侧壁及连接该第一 与第二侧壁的第三侧壁， 所述第一侧壁与第二侧壁相互平行设置， 第三侧 壁垂直于连接于该第一与第二侧壁， 该第一、 第二与第三侧壁围成一 u形 槽， 所述 LED灯安装并电性连接于金属基印刷电路板第一侧壁的外侧。
所述石墨片贴附于金属基印刷电路板第一侧壁的内侧。
所述石墨片对应 U形槽呈 U形设置， 其容置于该 U形槽内。
所述背板包括底板及连接于该底板上的侧板， 该侧板与底板形成一容 置空间。
所述金属基印刷电路板通过 U形槽卡设于背板的侧板上。
所述背光模组还包括容置于所述容置空间内的反射板、 设于反射板上 的导光板及设于导光板上的光学组件， 所述反射板设于所述背板的底板 上。
所述胶框对应液晶显示面板设有容置部， 所述液晶显示面板容置于该 容置部内。
所述液晶显示面板包括 TFT基板、 与 TFT基板相对贴合设置的 CF基 板、 设于 TFT基板与 CF基板之间的液晶、 贴附于 TFT基板远离 CF基板 表面的第一偏光片及贴附于 CF基板远离 TFT基板表面的第二偏光片。
所述液晶显示面板还包括设于 CF基板边缘位置的密封胶框及设于密 封胶框内的间隔物。
本发明还提供一种液晶显示装置， 包括： 背光模组、 设于背光模组上 的胶框、 设于胶框上的液晶显示面板及设于液晶显示面板上的前框， 所述 背光模组包括： 背板、 安装于背板上的灯条及设于背板与灯条之间的石墨 片， 所述灯条包括呈倒 U形的金属基印刷电路板及安装并电性连接于该金 属基印刷电路板上的数个 LED 灯， 所述金属基印刷电路板卡设于背板 上， 进而将灯条安装于背板上；
其中， 所述金属基印刷电路板包括相对设置的第一与第二侧壁及连接 该第一与第二侧壁的第三侧壁， 所述第一侧壁与第二侧壁相互平行设置， 第三侧壁垂直于连接于该第一与第二侧壁， 该第一、 第二与第三侧壁围成 一 U形槽， 所述 LED灯安装并电性连接于金属基印刷电路板第一侧壁的
'其中， 所述石墨片贴附于金属基印刷电路板第一侧壁的内侧； 其中， 所述背板包括底板及连接于该底板上的侧板， 该侧板与底板形 成一容置空间；
其中， 所述金属基印刷电路板通过 U形槽卡设于背板的侧板上； 其中， 所述背光模组还包括容置于所述容置空间内的反射板、 设于反 射板上的导光板及设于导光板上的光学组件， 所述反射板设于所述背板的 底板上；
其中， 所述胶框对应液晶显示面板设有容置部， 所述液晶显示面板容 置于该容置部内；
其中， 所述液晶显示面板包括 TFT基板、 与 TFT基板相对贴合设置 的 CF基板、 设于 TFT基板与 CF基板之间的液晶、 贴附于 TFT基板远离 CF基板表面的第一偏光片及贴附于 CF基板远离 TFT基板表面的第二偏 光片；
其中， 所述液晶显示面板还包括设于 CF基板边缘位置的密封胶框及 设于密封胶框内的间隔物。
本发明的有益效果： 本发明所提供的液晶显示装置， 通过倒 U形的金 属基印刷电路板将灯条卡设于背板上， 并在灯条与背板之间设置石墨片， 通过石墨片将热量传导至背板进行散热， 避免了釆用散热胶贴附或螺钉锁 附固定灯条的方式造成的组装或拆卸时的困难， 提供了较简单的组装或拆 卸方式， 节约了作业时间。
为了能更进一步了解本发明的特征以及技术内容， 请参阅以下有关本 发明的详细说明与附图， 然而附图仅提供参考与说明用， 并非用来对本发 明加以限制。 附图说明
下面结合附图， 通过对本发明的具体实施方式详细描述， 将使本发明 的技术方案及其它有益效果显而易见。
附图中，
图 1为现有液晶显示装置的装配结构示意图；
图 2为本发明液晶显示装置的装配结构示意图；
图 3为本发明液晶显示装置灯条的立体结构示意图； 图 4为本发明液晶显示装置灯条的剖面示意图；
图 5 为本发明液晶显示装置灯条贴附石墨片的一较佳实施例剖面示意 图；
图 6为本发明液晶显示装置灯条贴附石墨片的又一较佳实施例剖面示 意图。 具体实施方式
为更进一步阐述本发明所釆取的技术手段及其效果， 以下结合本发明 的优选实施例及其附图进行详细描述。
请参阅图 2 至图 5 , 本发明提供的液晶显示装置， 包括： 背光模组
2、 设于背光模组 2上的胶框 4、 设于胶框 4上的液晶显示面板 6及设于液 晶显示面板 6上的前框 8。
所述背光模组 2包括： 背板 22、 安装于背板 22上的灯条 24、 设于背 板 22与灯条 24之间的石墨片 26、 设于背板 22上的反射板 27、 设于反射 光线直接或经由反射板 27反射后进入导光板 28 , 然后穿过光学组件 29为 液晶显示面板 6提供亮度均匀的面光源。
所述灯条 24包括呈倒 U形的金属基印刷电路板 242及安装并电性连 接于该金属基印刷电路板 242上的数个 LED灯 244, 所述金属基印刷电路 板 242卡设于背板 22上， 进而将灯条 24安装于背板 22上。 所述金属基 印刷电路板 242 包括相对设置的第一与第二侧壁 2422、 2424及连接该第 一与第二侧壁 2422、 2424的第三侧壁 2426, 所述第一侧壁 2422与第二侧 壁 2424相互平行设置， 第三侧壁 2426 垂直于连接于该第一与第二侧壁 2422、 2424, 该第一、 第二与第三侧壁 2422、 2424、 2426 围成一 U形槽 2428, 所述 LED灯 244安装并电性连接于金属基印刷电路板 242第一侧 壁 2422的外侧。
所述石墨片 26贴附于金属基印刷电路板 242第一侧壁 2422的内侧。 该石墨片 26可将灯条 24散发的热量传导至背板 22上， 从而将热量散发 掉， 进而保证背光模组正常工作。
所述背板 22包括底板 222及连接于该底板 222上的侧板 224, 该侧板
224与底板 222形成一容置空间 226, 所述背光模组 2的反射板 27、 导光 板 28光学组件 29容置于该容置空间 226内， 所述反射板 27设于所述背 板 22的底板 222上。 所述金属基印刷电路板 242通过 U形槽 2428卡设于 背板 22的侧板 224上。 所述胶框 4对应液晶显示面板 6设有容置部 46, 所述液晶显示面板 6 容置于该容置部 46内。 所述液晶显示面板 6包括 TFT基板 62、 与 TFT基 板 62相对贴合设置的 CF基板 64、 设于 TFT基板 62与 CF基板 64之间 的液晶 （未图示） 、 贴附于 TFT基板 62远离 CF基板 64表面的第一偏光 片 622及贴附于 CF基板 64远离 TFT基板 62表面的第二偏光片 642。 所 述液晶显示面板 6还包括设于 CF基板 64边缘位置的密封胶框（未图示） 及设于密封胶框内的间隔物 （未图示） 。
请参阅图 6, 为本发明液晶显示装置灯条贴附石墨片的又一较佳实施 例剖面示意图， 在本实施例中， 所述石墨片 26，对应金属基印刷电路板 242 的 U形槽 2428呈 U形设置， 其容置于 U形槽 2428内， 可实现与前一实 施例相同的技术效果。
综上所述， 本发明液晶显示装置， 通过倒 U形的金属基印刷电路板将 灯条卡设于背板上， 并在灯条与背板之间设置石墨片， 通过石墨片将热量 传导至背板进行散热， 避免了釆用散热胶贴附或螺钉锁附固定灯条的方式 造成的组装或拆卸时的困难， 提供了较简单的组装或拆卸方式， 节约了作 业时间。
以上所述， 对于本领域的普通技术人员来说， 可以根据本发明的技术 方案和技术构思作出其他各种相应的改变和变形， 而所有这些改变和变形 都应属于本发明权利要求的保护范围。

Claims

权 利 要 求
1、 一种液晶显示装置， 包括： 背光模组、 设于背光模组上的胶框、 设于胶框上的液晶显示面板及设于液晶显示面板上的前框， 所述背光模组 包括： 背板、 安装于背板上的灯条及设于背板与灯条之间的石墨片， 所述 灯条包括呈倒 U形的金属基印刷电路板及安装并电性连接于该金属基印刷 电路板上的数个 LED 灯， 所述金属基印刷电路板卡设于背板上， 进而将 灯条安装于背板上。
2、 如权利要求 1 所述的液晶显示装置， 其中， 所述金属基印刷电路 板包括相对设置的第一与第二侧壁及连接该第一与第二侧壁的第三侧壁， 所述第一侧壁与第二侧壁相互平行设置， 第三侧壁垂直于连接于该第一与 第二侧壁， 该第一、 第二与第三侧壁围成一 U形槽， 所述 LED灯安装并 电性连接于金属基印刷电路板第一侧壁的外侧。
3、 如权利要求 2 所述的液晶显示装置， 其中， 所述石墨片贴附于金 属基印刷电路板第一侧壁的内侧。
4、 如权利要求 2所述的液晶显示装置， 其中， 所述石墨片对应 U形 槽呈 U形设置， 其容置于该 U形槽内。
5、 如权利要求 2 所述的液晶显示装置， 其中， 所述背板包括底板及 连接于该底板上的侧板， 该侧板与底板形成一容置空间。
6、 如权利要求 5 所述的液晶显示装置， 其中， 所述金属基印刷电路 板通过 U形槽卡设于背板的侧板上。
7、 如权利要求 5 所述的液晶显示装置， 其中， 所述背光模组还包括 容置于所述容置空间内的反射板、 设于反射板上的导光板及设于导光板上 的光学组件， 所述反射板设于所述背板的底板上。
8、 如权利要求 1 所述的液晶显示装置， 其中， 所述胶框对应液晶显 示面板设有容置部， 所述液晶显示面板容置于该容置部内。
9、 如权利要求 1 所述的液晶显示装置， 其中， 所述液晶显示面板包 括 TFT基板、 与 TFT基板相对贴合设置的 CF基板、 设于 TFT基板与 CF 基板之间的液晶、 贴附于 TFT基板远离 CF基板表面的第一偏光片及贴附 于 CF基板远离 TFT基板表面的第二偏光片。
10、 如权利要求 9所述的液晶显示装置， 其中， 所述液晶显示面板还 包括设于 CF基板边缘位置的密封胶框及设于密封胶框内的间隔物。
11、 一种液晶显示装置， 包括： 背光模组、 设于背光模组上的胶框、 设于胶框上的液晶显示面板及设于液晶显示面板上的前框， 所述背光模组 包括： 背板、 安装于背板上的灯条及设于背板与灯条之间的石墨片， 所述 灯条包括呈倒 U形的金属基印刷电路板及安装并电性连接于该金属基印刷 电路板上的数个 LED 灯， 所述金属基印刷电路板卡设于背板上， 进而将 灯条安装于背板上；
其中， 所述金属基印刷电路板包括相对设置的第一与第二侧壁及连接 该第一与第二侧壁的第三侧壁， 所述第一侧壁与第二侧壁相互平行设置， 第三侧壁垂直于连接于该第一与第二侧壁， 该第一、 第二与第三侧壁围成 一 U形槽， 所述 LED灯安装并电性连接于金属基印刷电路板第一侧壁的
'其中， 所述石墨片贴附于金属基印刷电路板第一侧壁的内侧； 其中， 所述背板包括底板及连接于该底板上的侧板， 该侧板与底板形 成一容置空间；
其中， 所述金属基印刷电路板通过 U形槽卡设于背板的侧板上； 其中， 所述背光模组还包括容置于所述容置空间内的反射板、 设于反 射板上的导光板及设于导光板上的光学组件， 所述反射板设于所述背板的 底板上；
其中， 所述胶框对应液晶显示面板设有容置部， 所述液晶显示面板容 置于该容置部内；
其中， 所述液晶显示面板包括 TFT基板、 与 TFT基板相对贴合设置 的 CF基板、 设于 TFT基板与 CF基板之间的液晶、 贴附于 TFT基板远离 CF基板表面的第一偏光片及贴附于 CF基板远离 TFT基板表面的第二偏 光片；
其中， 所述液晶显示面板还包括设于 CF基板边缘位置的密封胶框及 设于密封胶框内的间隔物。
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