WO2015070530A1 - 背光模组及用该背光模组的液晶显示装置 - Google Patents

背光模组及用该背光模组的液晶显示装置 Download PDF

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Publication number
WO2015070530A1
WO2015070530A1 PCT/CN2014/070502 CN2014070502W WO2015070530A1 WO 2015070530 A1 WO2015070530 A1 WO 2015070530A1 CN 2014070502 W CN2014070502 W CN 2014070502W WO 2015070530 A1 WO2015070530 A1 WO 2015070530A1
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WIPO (PCT)
Prior art keywords
substrate
light guide
liquid crystal
guide plate
crystal display
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Ceased
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PCT/CN2014/070502
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English (en)
French (fr)
Inventor
俞刚
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US14/241,073 priority Critical patent/US9285616B2/en
Publication of WO2015070530A1 publication Critical patent/WO2015070530A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • 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
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets 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
    • G02F1/133308—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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame

Definitions

  • the present invention relates to the field of liquid crystal display, and in particular to a backlight module and a display device using the same.
  • the liquid crystal display has many advantages such as an optical book, power saving, and no radiation, and has been widely used.
  • the liquid crystal display devices on the existing market are mostly classified into a backlight type liquid crystal display device, which includes a liquid crystal display panel and a backlight module (baddight module).
  • the working principle of the liquid crystal display panel is to place liquid crystal molecules in two parallel glass substrates. There are many vertical and horizontal small wires between the two glass substrates, and the liquid crystal molecules are controlled to change direction by energizing or not, and the light of the backlight module is changed. Refracted to produce a picture. Since the liquid crystal display panel itself does not emit light, the light source provided by the backlight module is required to display the image normally.
  • the backlight module becomes one of the key components of the liquid crystal display device.
  • the backlight module is divided into a side-lit backlight module and a direct-lit backlight module according to different light source injection positions.
  • a light source such as a cathode fluorescent lamp (CCFL) or a light emitting diode (LED) is disposed behind the liquid crystal display panel, and a surface light source is directly formed to be supplied to the liquid crystal display panel.
  • the side-lit backlight module has a backlight LED strip (Light bar) disposed at the edge of the back panel behind the liquid crystal display panel, and the light emitted by the LED strip is from the side of the light guide plate (LGP).
  • the smooth surface enters the light guide plate, is reflected and diffused, and is emitted from the light exit surface of the light guide plate, and then passes through the optical film group to form a surface light source to be supplied to the liquid crystal display panel.
  • FIG. 1 is a schematic structural view of a conventional thinned liquid crystal display device, which includes: a backlight module 100.
  • the backlight frame 100 is disposed on the backlight module 100 and the liquid crystal display panel 500 is disposed on the plastic frame 300.
  • the backlight module 100 includes: a back plate 102, and a light guide plate 104 disposed in the back plate 102.
  • the object of the present invention is to provide a backlight module, which reduces the thickness of the backlight module, reduces the manufacturing cost, and is advantageous for thinning, and avoids the friction between the reflective sheet and the light guide plate due to the surface roughness of the bottom plate, thereby causing the light guide plate to be affected. Damage, extend the life of the light guide.
  • Another object of the present invention is to provide a liquid crystal display device, which can reduce the thickness of the liquid crystal display device, reduce the manufacturing cost, and facilitate the thinning of the liquid crystal display device, and avoid the surface roughness between the reflective sheet and the light guide plate due to the surface roughness of the bottom plate. Friction causes damage to the light guide plate and prolongs the life of the light guide plate.
  • the present invention provides a backlight module, including: a back plate, a backlight installed in the back plate, a light guide plate installed in the back plate, and a reflective sheet disposed between the back plate and the light guide plate.
  • the backplane includes a bottom plate and a plurality of side plates vertically connected to the bottom plate.
  • the bottom plate faces the surface of the light guide plate as a curved surface, and the reflective sheet is arc-shaped on the curved surface, and the light guide plate Supported at both ends of the reflective sheet.
  • the light guide plate includes a bottom surface facing the bottom plate, a top surface disposed opposite to the bottom surface, and a plurality of side surfaces disposed between the bottom surface and the top surface, wherein the plurality of side surfaces include at least one light incident surface, and the backlight is The light incident side is mounted on the side panel.
  • optical film set disposed above the light guide plate.
  • the present invention further provides a liquid crystal display device, comprising: a backlight module, a plastic frame disposed on the backlight module, and a liquid crystal display panel disposed on the plastic frame
  • the backlight module comprising: a back plate and being mounted on the back a backlight in the board, a light guide plate mounted in the back board, and a reflective sheet disposed between the back board and the light guide plate
  • the back board includes a bottom plate and a plurality of side plates vertically connected to the bottom plate, the bottom plate facing the light guide plate The surface of the reflective sheet is supported on the arcuate surface, and the light guide plate is supported on both ends of the reflective sheet.
  • the light guide plate includes a bottom surface facing the bottom plate, a top surface disposed opposite to the bottom surface, and a plurality of side surfaces disposed between the bottom surface and the top surface, wherein the plurality of side surfaces include at least one light incident surface, and the backlight is The light incident side is mounted on the side panel.
  • the backlight module further includes an optical film set disposed above the light guide plate.
  • the liquid crystal display panel includes a TFT substrate, a CF substrate that is disposed to face the TFT substrate, and a liquid crystal layer that is disposed between the TFT substrate and the CF substrate.
  • the TFT substrate includes a first substrate, a thin film transistor formed on one side of the first substrate, and a first polarizer formed on the other side of the first substrate;
  • the CF substrate includes a second substrate and is formed on one side of the second substrate a color filter and a second polarizer formed on the other side of the second substrate.
  • the first substrate and the second substrate are both a Boma substrate
  • the present invention further provides a liquid crystal display device, comprising: a backlight module, a plastic frame disposed on the backlight module, and a liquid crystal display panel disposed on the plastic frame,
  • the backlight module comprising: a back plate and being mounted on the back a backlight in the board, a light guide plate mounted in the back board, and a reflective sheet disposed between the back board and the light guide plate
  • the back board includes a bottom plate and a plurality of side plates vertically connected to the bottom plate, the bottom plate facing the light guide plate The surface of the reflective sheet is supported on the arcuate surface, and the light guide plate is supported on both ends of the reflective sheet;
  • the light guide plate includes a bottom surface facing the bottom plate, a top surface disposed opposite to the bottom surface, and a plurality of side surfaces disposed between the bottom surface and the top surface, wherein the plurality of side surfaces include at least one light incident surface, and the backlight is The light incident surface side is mounted on the inverted plate;
  • the backlight module further includes an optical film set disposed above the light guide plate.
  • the liquid crystal display panel includes a TFT substrate, a CF substrate disposed opposite to the TFT substrate, and a liquid crystal layer disposed between the TFT substrate and the CF substrate.
  • the TFT substrate includes a first substrate, a thin film transistor formed on one side of the first substrate, and a first polarizer formed on the other side of the first substrate;
  • the CF substrate includes a second substrate and is formed on one side of the second substrate a color filter and a second polarizer formed on the other side of the second substrate.
  • the first substrate and the second substrate are both a Boma substrate
  • the backlight module of the present invention and the liquid crystal display device using the same have a curved surface on a bottom plate of the back plate, and a reflection sheet is disposed in the curved surface, so that the reflection The sheet is also curved to enhance the reflection effect.
  • the light guide plate is directly supported on both ends of the reflection sheet, thereby effectively reducing the thickness of the backlight module and not completely contacting the reflection sheet, thereby effectively avoiding the bottom plate of the back plate being not flat enough.
  • the resulting light guide plate wears out, effectively extending the life of the backlight module.
  • Figure i is a schematic structural view of a conventional liquid crystal display device; 2 is a schematic structural view of a backlight module of the present invention;
  • FIG. 3 is a schematic structural view of a liquid crystal display device of the present invention.
  • the present invention provides a backlight module, comprising: a backing plate 2 attached to the backlight in the back plate 24, and is attached to the light guide plate 6 is provided in the backplate 2
  • the backing plate 2 includes a bottom plate 22 and a plurality of side plates 24 vertically connected to the bottom plate 22, wherein the bottom plate 22 faces the surface of the light guide plate 6
  • the curved surface 222 is disposed on the curved surface 222 in an arc shape, and the light guide plate 6 is supported on both ends of the reflective sheet 8.
  • the reflective sheet 8 Since the reflective sheet 8 is arranged in an arc shape, the effective increase is The reflection effect, at the same time, the light guide plate 6 is directly supported on the two ends of the reflection sheet 8.
  • the light guide plate 6 and the reflection sheet 8 are not completely contacted, and the bottom plate of the back plate 2 can be effectively avoided. 22
  • the light guide plate 6 is worn out due to insufficient flatness, which effectively extends the service life of the backlight module.
  • the light guide plate 6 includes a bottom surface 62 facing the bottom plate 22, a top surface 64 disposed opposite to the bottom surface 62, and a plurality of side surfaces disposed between the bottom surface 62 and the top surface 64.
  • the plurality of side surfaces include at least one inlet
  • the light surface 66 is mounted on the side plate 24 on the side of the light incident surface 66.
  • the light-incident surface 66 is two
  • the backlight 4 also corresponds to two, and constitutes a side-entry backlight module with two sides entering light.
  • the backlight module of the present invention further comprises an optical film set 10 disposed above the light guide plate 6 to enhance the illumination intensity and illumination uniformity emitted by the backlight module.
  • a liquid crystal display device includes: a backlight module, a plastic frame 20 disposed on the backlight module, and a liquid crystal display panel 40 disposed on the plastic frame 20, wherein the backlight module includes : Backplane 2, backlight 4 mounted in backplane 2. a light guide plate 6 mounted in the back plate 2 and a reflective sheet 8 disposed between the back plate 2 and the light guide plate 6.
  • the back plate 2 includes a bottom plate 22 and a plurality of side plates 24 vertically connected to the bottom plate 22, the bottom plate
  • the surface of the light guide plate 6 is a curved surface 222.
  • the reflective sheet 8 is arcuately disposed on the curved surface 222.
  • the light guide plate 6 is supported at both ends of the reflective sheet 8.
  • the reflection sheet 8 is arranged in an arc shape, the reflection effect is effectively increased.
  • the light guide plate 6 is directly supported on both ends of the reflection sheet 8, and the light guide plate 6 and the reflection sheet 8 are not completely contacted while reducing the thickness of the backlight module.
  • the light guide plate 6 includes a bottom surface 62 facing the bottom plate 22, a top surface 64 disposed opposite to the bottom surface 62, and a plurality of side surfaces disposed between the bottom surface 62 and the top surface 64, and the plurality of side surfaces include at least one a light incident surface 66, the backlight 4 is mounted on the side of the light incident surface 66
  • the film set 10 is used to enhance the illumination intensity and illumination uniformity emitted by the backlight module.
  • the liquid crystal display panel 40 includes a TFT substrate 402 , a CF substrate 404 disposed opposite to the TFT substrate 402 , and a liquid crystal layer 406 disposed between the TFT substrate 402 and the CF substrate 404 .
  • the TFT substrate 402 is used to drive liquid crystal molecules in the liquid crystal layer 406 to deflect light
  • the CF substrate 404 is used for color display.
  • the TFT substrate 402 includes a first substrate 421, a thin film transistor 423 formed on the side of the first substrate 421, and a first polarizer 425 formed on the other side of the first substrate 421;
  • the CF substrate 404 includes The second substrate 441, the color filter 443 formed on the side of the second substrate 441, and the second polarizer 445 formed on the other side of the second substrate 441.
  • the first substrate 421 and the second substrate 441 are both glass substrates. It is to be noted that the liquid crystal display device further includes a front frame 60 disposed on the liquid crystal display panel 40 for fixing the liquid crystal display panel 40 in the plastic frame 20.
  • the backlight module of the present invention and the liquid crystal display device using the backlight module have a curved surface disposed on the bottom plate of the back plate, and the reflective sheet is disposed in the curved surface to make the reflective sheet It also has an arc shape to enhance the reflection effect.
  • the light guide plate is directly supported on both ends of the reflection sheet, effectively reducing the thickness of the backlight module, and not completely contacting the reflection sheet, thereby effectively avoiding the flatness of the bottom plate of the back plate.
  • the appearance of the light guide plate is worn out, and the use of the backlight module is effectively extended.

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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)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

一种背光模组及用该背光模组的液晶显示装置。背光模组包括：背板（2）、安装于背板（2）内的背光源（4）、安装于背板（2）内的导光板（6）及设于背板（2）与导光板（6）之间的反射片（8），背板（2）包括底板（22）及垂直连接于底板（22）的数个侧板（24），底板（22）朝向导光板（6）的表面为一弧形面（222），反射片（8）呈弧形设于弧形面（222）上。导光板（6）支撑于反射片（8）的两端，有效降低背光模组的厚度，且不与反射片（6）完全接触，进而有效避免由于背板（2）的底板（22）不够平整而导致的导光板（6）磨损的情况出现，有效延长背光模组的使用寿命。

Description

f光模组及用该背光模组的液晶显示装置
本发明涉及液晶显示领域， 尤其涉及一种背光模组及用该背光模组的 显示装置。
液晶显示装置 ( Liquid Crystal Display , LCD )具有机身簿、 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 分为背光型液晶显示装置， 其包括液晶显示面板及背光模组 （baddight module ) 。 液晶显示面板的工作原理是在两片平行的玻璃基板当中放置液 晶分子， 两片玻璃基板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 晶显示面板本身不发光， 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阴极萤光灯管 (Cold Cathode Fluorescent Lamp, CCFL) 或发光二极管 ( Light Emitting Diode, LED)设置在液晶显示面板后方， 直 接形成面光源提供给液晶显示面板。 而侧入式背光模组是将背光源 LED 灯条 ( Light bar )设于液晶显示面板侧后方的背板边缘， LED 灯条发出的 光线从导光板 ( Light Guide Plate, LGP )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射出， 再经由光学膜片组， 以形成面光源提供 给液晶显示面板„
薄型化是现今液晶显示装置的发展趋势， 请参阔图 1， 为现有的一种 薄型化液晶显示装置的结构示意图， 其包括： 背光模组 100。 设于背光模 组 100上的胶框 300及设于胶框 300上的液晶显示面板 500， 所述背光模 组 100 包括: 背板 102, 设于背板 102 内的导光板 104、 设于导光板 104 内的背光源 106及设于背板 102 的底板 122与导光板 104之间的反射片 108, 所述导光板 104直接设置于反射片 108上， 该导光板. 104的底面 142 与反射片 108之间无间隙， 以降低液晶显示装置的厚度， 实现液晶显示装 置的薄型化。
然而， 当背板】02的底板 122朝向反.射片 108的表面不够光滑时 （如 有凸起） ， 其会将反射片 108顶起， 进而增大反射片 108与导光板 104之 间的摩擦力， 容易导致导光板 104损坏。 发明内容
本发明的目的在于提供一种背光模组， 降低背光模组的厚度， 降低制 作成本， 有利于实现薄型化， 同时避免由于底板的表面粗糙导致反射片与 导光板之间摩擦而造成导光板受损， 延长导光板的使用寿命。
本发明的另一目的在于提供一种液晶显示装置， 降低液晶显示装置的 厚度， 降低制作成本， 有利于实现液晶显示装置的薄型化， 同时避免由于 底板的表面粗糙导致反射片与导光板之间摩擦而造成导光板受损， 延长导 光板的使用寿命。
为实现上述目的， 本发明提供一种背光模组， 包括： 背板、 安装于背 板内的背光源、 安装于背板内的导光板及设于背板与导光板之间的反射 片， 所述背板包括底板及垂直连接于底板的数个侧板， 所述底板朝向导光 板的表面为一弧形面， 所述反射片呈弧形设于该弧形面上， 所述导光板支 撑于所述反射片的两端。
所述导光板包括朝向底板的底面、 与底面相对设置的顶面及设于底面 与顶面之间的数个侧面， 该数个侧面中包括至少一个入光面， 所述背光源 于所述入光面侧安装于所述侧板上。
还包括设于导光板上方的光学膜片组。
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、 及设于胶框上的液晶显示面板， 所述背光模组包括： 背板、 安装 于背板内的背光源、 安装于背板内的导光板及设于背板与导光板之间的反 射片， 所述背板包括底板及垂直连接于底板的数个側板， 所述底板朝向导 光板的表面为一弧形面， 所述反射片呈弧形设于该弧形面上， 所述导光板 支撑于所述反射片的两端。
所述导光板包括朝向底板的底面、 与底面相对设置的顶面及设于底面 与顶面之间的数个侧面， 该数个侧面中包括至少一个入光面, 所述背光源 于所述入光面侧安装于所述側板上。
所述背光模组还包括设于导光板上方的光学膜片组。
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 板及设于 TFT基板与 CF基板之闾的液晶层。
所述 TFT基板包括第一基板、 形成于第一基板一侧的薄膜晶体管及形 成于第一基板另一側的第一偏光片； 所述 CF基板包括第二基板、 形成于 第二基板一侧的彩膜滤光片及形成于第二基板另一侧的第二偏光片。 所述第一-基板.与第二基板均为玻瑪基板
还.包括设于液晶显示面板上的前框。
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、 及设于胶框上的液晶显示面板， 所述背光模组包括： 背板、 安装 于背板内的背光源、 安装于背板内的导光板及设于背板与导光板之间的反 射片， 所述背板包括底板及垂直连接于底板的数个側板， 所述底板朝向导 光板的表面为一弧形面， 所述反射片呈弧形设于该弧形面上， 所述导光板 支撑于所述.反射片的两端；
其中， 所述导光板包括朝向底板的底面、 与底面相对设置的顶面及设 于底面与顶面之间的数个側面， 该数个侧面中包括至少一个入光面， 所述 背光源于所述入光面侧安装于所述倒板上；
其中， 所述背光模组还包括设于导光板上方的光学膜片组。
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 板及设于 TFT基板与 CF基板之间的液晶层。
所述 TFT基板包括第一基板、 形成于第一基板一侧的薄膜晶体管及形 成于第一基板另一側的第一偏光片； 所述 CF基板包括第二基板、 形成于 第二基板一侧的彩膜滤光片及形成于第二基板另一侧的第二偏光片。
所述第一-基板.与第二基板均为玻瑪基板
还包括设于液晶显示面板上的前框。
本发明的有益效果： 本发明的背光模组及用该背光模组的液晶显示装 置， 通过在背板的底板上设置弧形面， 并将反射片设于该弧形面内， 使得 该反射片也呈弧形， 增强反射效果， 同时， 导光板直接支撑于反射片的两 端， 有效降低背光模组的厚度， 且不与反射片完全接触， 进而有效避免由 于背板的底板不够平整而导致的导光板磨损的情况出现， 有效延长背光模 组的使用寿命。
为了能更进一步了解本发明的特征以及技术内容， 请参阔以下有关本 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 i为现有液晶显示装置的结构示意图； 图 2为本发明背光模组的结构示意图；
图 3为本发明液晶显示装置的结构示意图；
图 4为图 3中液晶显示面板的结构示意图。 具体实旅方式 的优选实 i例及其附图 详 描述。' ¾ r " 、、 ' 请参阅图 2 , 本发明提供一种背光模组， 包括： 背板 2、 安装于背板 2 内的背光源 4、 安装于背板 2 内的导光板 6及设于背板 2与导光板 6之间 的反.射片 8， 所述背板 2 包括底板 22 及垂直连接于底板 22 的数个侧板 24， 所述底板 22朝向导光板 6的表面为一弧形面 222， 所述反射片 8呈弧 形设于该弧形面 222上， 所述导光板 6支撑于所述反射片 8的两端。 由于 反射片 8呈弧形设置， 有效增加了反射效果， 同时， 导光板 6直接支撑于 反射片 8的两端， 在降低背光模组厚度的同时， 使导光板 6与反射片 8不 完全接触， 能有效避.免由于背板 2 的底板 22 不够平整而导致的导光板 6 磨损的情况出现， 有效延长背光模组的使用寿命。
进一步地， 所述导光板 6包括朝向底板 22的底面 62、 与底面 62相对 设置的顶面 64及设于底面 62与顶面 64之间的数个侧面， 该数个侧面中 包括至少一个入光面 66， 所述背光源 4于所述入光面 66侧安装于所述侧 板 24上。 在本实施例中， 所述入光面 66为两个， 所述背光源 4也对应为 两个, 组成双側入光的侧入式背光模组。
值得一提的是， 本发明的背光模组还包括设于导光板 6上方的光学膜 片组 10， 以增强背光模组发出的光照强度及光照均匀性。
请参阅图 3及图 4， 一种液晶显示装置， 包括： 背光模组、 设于背光 模组上的胶框 20、 及设于胶框 20上的液晶显示面板 40， 所述背光模组包 括： 背板 2、 安装于背板 2 内的背光源 4。 安装于背板 2 内的导光板 6及 设于背板 2与导光板 6之间的反射片 8， 所述背板 2包括底板 22及垂直连 接于底板 22的数个側板 24， 所述底板 22朝向导光板 6的表面为一弧形面 222, 所述反射片 8呈弧形设于该弧形面 222上， 所述导光板 6支撑于所 述.反射片 8的两端。 由于反射片 8呈弧形设置， 有效增加了反射效果， 同 时， 导光板 6直接支撑于反射片 8的两端， 在降低背光模组厚度的同时， 使导光板 6与反射片 8不完全接触， 能有效避免由于背板 2的底板 22不 够平整而导致的导光板 6 磨损的情况出现， 有效延长背光模组的使用寿 进一步地， 所述导光板 6包括朝向底板 22的底面 62、 与底面 62相对 设置的顶面 64及.设于底面 62与顶面 64之间的数个侧面， 该数个侧面中 包括至少一个入光面 66, 所述背光源 4于所述入光面 66侧安装于所述侧
Figure imgf000007_0001
片组 10， 以增强背光模组发出的光照强度及光照均匀性。
具体地， 请参阅图 4, 所述液晶显示面板 40 包括 TFT基板 402、 与 TFT基板 402相对贴合设置的 CF基板 404及设于 TFT基板 402与 CF基 板 404之间的液晶层 406。 所述 TFT基板 402用于驱动液晶层 406中的液 晶分子偏转， 以实现对光线的选_择， CF基板 404用于实现彩色显示。
进一步地， 所述 TFT基板 402 包括第一基板 421、 形成于第一基板 421 —侧的薄膜晶体管 423 及形成于第一基板 421 另一侧的第一偏光片 425; 所述 CF基板 404包括第二基板 . 441、 形成于第二基板 441 —侧的彩 膜滤光片 443及形成于第二基板 441另一侧的第二偏光片 445。
在本实施例中， 所述第一基板 421与第二基板 441均为玻璃基板。 值得一提的是， 所述液晶显示装置还包括设于液晶显示面板 40 上的 前框 60， 用于将液晶显示面板 40固定.于胶框 20内。
综上所述， 本发明的背光模组及用该背光模组的液晶显示装置， 通过 在背板的底板上设置弧形面， 并将反射片设于该弧形面内， 使得该反射片 也呈弧形， 增强反射效果， 同时， 导光板直接支撑于反射片的两端， 有效 降低背光模组的厚度， 且不与反射片完全接触， 进而有效避免由于背板的 底板不够平整而导致的导光板磨损的情况出现， 有效延长背光模组的使用 以上所述， 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 一种背光模组， 包括： 背板、 安装于背板内的背光源、 安装于背 板内的导光板及设于背板与导光板之间的反射片， 所述背板包括底板及垂 直连接于底板的数个侧板， 所述底板朝向导光板的表面为一弧形面， 所述 反射片呈弧形设于该弧形面上， 所述导光板支撑于所述反射片的两端。
2、 如权利要求 1 所述的背光模组， 其中， 所述导光板包括朝向底板 的底面、 与底面相对设置的顶面及设于底面与顶面之间的数个侧面, 该数 个侧面中包括至少一个入光面， 所述背光源于所述入光面侧安装于所述倒 板上。
3、 如权利要求 1 所述的背光模组， 还包括设于导光板上方的光学膜 片组„
4、 一种液晶显示装置， 包括： 背光模组、 设于背光模组上的胶框、 及设于胶框上的液晶显示面板， 所述背光模组包括： 背板、 安装于背板内 的背光源、 安装于背板内的导光板及设于背板与导光板之间的反射片， 所 述背板包括底板及垂直连接于底板的数个侧板， 所述底板朝向导光板的表 面为一弧形面， 所述反射片呈弧形设于该弧形面上， 所述导光板支撑于所 述反射片的两端。
5、 如权利要求 4 所述的液晶显示装置， 其中， 所述导光板包括朝向 底板的底面、 与底面相对设置的顶面及设于底面与顶面之间的数个侧面, 该数个侧面中包括至少一个入光面， 所述背光源于所述入光面侧安装于所 述側板上。
6、 如权利要求 4 所述的液晶显示装置， 其中， 所述背光模组还包括 设于导光板上方的光学膜片组。
7、 如权利要求 4 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基板及设于 TFT基板与 CF
8、 如权利要求 7所述的液晶显示装置， 其中， 所述 TFT基板包括第 一基板、 形成于第一基板一侧的薄膜晶体管及形成于第一基板另一侧的第 一偏光片； 所述 CF基板包括第二基板、 形成于第二基板一侧的彩膜滤光 片及形成于第二基板另一侧的第二偏光片。
9、 如权利要求 8 所述的液晶显示装置， 其中， 所述第一基板与第二
10、 如权利要求 4所述的液晶显示装置， 还包括设于液晶显示面板上
'
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、 及设于胶框上的液晶显示面板， 所述背光模组包括： 背板、 安装于背板内 的背光源、 安装于背板内的导光板及设于背板与导光板之间的反射片， 所 述背板包括底板及垂直连接于底板的数个侧板， 所述底板朝向导光板的表 面为一弧形面， 所述反射片呈弧形设于该弧形面上， 所述导光板支撑于所 述.反射片的两端；
其中， 所述导光板包括朝向底板的底面、 与底面相对设置的顶面及设 于底面与顶面之间的数个側面， 该数个侧面中包括至少一个入光面， 所述 背光源于所述入光面侧安装于所述倒板上；
其中， 所述背光模组还包括设于导光板上方的光学膜片组。
12、 如权利要求 11 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基板及设于 TFT基板与 CF基板之间的液晶层。
】3、 如权利要求 12所述的液晶显示装置， 其中， 所述 TFT基板包括 第一基板、 形成于第一基板一側的薄膜晶体管及形成于第一基板另一侧的 第一偏光片； 所述 CF基板包括第二基板， 形成于第二基板一侧的彩膜滤 光片及形成于第二基板另一侧的第二偏光片。
14、 如权利要求 13 所述的液晶显示装置， 其中， 所述第一基板与第
—基板均为玻璃基板
15 , 如权利要求 1 1 所述的液晶显示装置， 还包括设于液晶显示面板 上的前框。
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