WO2013177802A1 - 背光模组 - Google Patents

背光模组 Download PDF

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Publication number
WO2013177802A1
WO2013177802A1 PCT/CN2012/076455 CN2012076455W WO2013177802A1 WO 2013177802 A1 WO2013177802 A1 WO 2013177802A1 CN 2012076455 W CN2012076455 W CN 2012076455W WO 2013177802 A1 WO2013177802 A1 WO 2013177802A1
Authority
WO
WIPO (PCT)
Prior art keywords
bracket
light guide
hole
backlight module
guide plate
Prior art date
Application number
PCT/CN2012/076455
Other languages
English (en)
French (fr)
Inventor
郭仪正
周革革
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
Publication date
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 US13/575,296 priority Critical patent/US20130322117A1/en
Publication of WO2013177802A1 publication Critical patent/WO2013177802A1/zh

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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
    • G02B6/0081—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
    • 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
    • G02F1/133308—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
    • G02F1/133328—Segmented frames

Definitions

  • the present invention relates to the field of liquid crystal displays, and more particularly to a backlight module. 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 liquid crystal displays, which include a liquid crystal display panel and a backlight module.
  • the working principle of the liquid crystal display panel is to place liquid crystal molecules in the middle of 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. Therefore, 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 the incident position of the backlight.
  • a backlight such as a CCFL (Cold Cathode Fluorescent Lamp) or an LED (Light Emitting Diode) 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 is an example of a backlight, such as an LED backlight (lightbar), disposed at the edge of the back panel behind the liquid crystal display panel, and the light emitted by the LED backlight enters the light-incident surface of the light guide plate side. The light plate is reflected and diffused and then emitted from the light exit surface of the light guide plate to form a surface light source for being supplied to the liquid crystal display panel.
  • the existing backlight module mainly comprises: a back plate, a light guide plate, a backlight, and an optical film
  • the back plate is generally made of the same material, and the material used is aluminum plate, iron plate or plastic. Since the price of the aluminum plate is more expensive than the price of the iron plate, the aluminum plate in the aluminum back plate can be replaced by the iron plate, and then the two parts of the back plate of different materials are spliced together, so that the composite material can be made into a composite material.
  • the splicing backplane helps to reduce costs.
  • FIG. 1 is a backlight module having a splicing back 200.
  • the splicing back plate 200 includes a body 202 and a first bracket 204 connected to the body 202.
  • the body 202 and the first bracket 204 are locked by screws 203.
  • the screws 203 are arranged in a row, which causes the body 202 and the first bracket 204 to rotate relative to each other, which causes the flatness of the splicing backboard 200 to be lowered, thereby causing the optical grade to decrease, which is disadvantageous for cost control.
  • FIG. 2 it is a dual-side light-emitting backlight module having a splicing backplane.
  • the body 202 of the splicing backplane 200 includes a substrate 205 and a second bracket 206 connected to the substrate 205.
  • the second bracket 206 is locked to the base plate 205 by a row of screws 207, which also has the above-mentioned drawbacks.
  • the object of the present invention is to provide a backlight module with a single structure, good heat dissipation performance, high strength, low cost, and favorable optical grade.
  • Another object of the present invention is to provide a backlight module with a single structure, good heat dissipation performance, high strength, low cost, favorable optical grade, and convenient fixing of the light guide plate.
  • the present invention provides a backlight module, including: a backplane, a light guide plate disposed in the backplane, and a first backlight disposed in the backplane, the backplane includes a body and is coupled to the body
  • the first bracket includes a substrate, and a first overlapping portion is disposed on a side edge of the substrate adjacent to the first bracket, and a side edge of the first bracket adjacent to the substrate is corresponding to the first overlapping portion.
  • a first connecting portion, the first overlapping portion is overlapped with the first connecting portion, and the plurality of first and second screws lock the first overlapping portion and the first connecting portion together, and the plurality of first portions It is arranged in two rows with the second screw.
  • the light guide plate is provided with a first hole portion corresponding to the second screw, and the second screw protrudes into the first hole portion of the light guide plate.
  • the body further includes a side plate integrally connected to the substrate, the body is made of a high-strength material, the first bracket is made of a high thermal conductive material, and the first backlight is mounted on the first bracket
  • the body is made of iron iridium; the first bracket is made of aluminum iridium.
  • the first connecting portion is provided with two rows of threaded holes, and the first overlapping portion is provided with two rows of through holes, and the first and second screws are respectively screwed into the threaded holes after passing through the through holes, and the second screws are After passing through the threaded hole, it is mated with the first hole portion.
  • the invention also includes a reflective sheet disposed in the backplane and located under the light guide plate, and an optical film set disposed on the light guide plate, wherein the reflective sheet is provided with a first through hole corresponding to the first hole portion.
  • the body further includes a second bracket connected to the other side edge of the substrate relative to the first bracket, a second backlight mounted on the second bracket, the second bracket being made of a highly thermally conductive material
  • the substrate is made of a high-strength material
  • the substrate is provided with a second overlapping portion near a side edge of the second bracket
  • the second bracket is adjacent to the other side edge of the substrate and corresponding to the second overlapping portion.
  • a connecting portion, the second overlapping portion and the second connecting portion are overlapped, and the plurality of third and fourth screws lock the second overlapping portion and the second connecting portion together, and the plurality of third and third portions
  • the four screws are arranged in two rows.
  • the light guide plate is provided with a second hole portion corresponding to the fourth screw, and the fourth screw protrudes into the second hole portion of the light guide plate.
  • the second holder is made of aluminum sheet metal, and the substrate is made of iron iridium.
  • the second connecting portion is provided with two rows of threaded holes, and the second overlapping portion is provided with two rows of through holes, and the third and fourth screws are respectively threaded into the threaded holes after passing through the through holes, and the fourth screw After passing through the threaded hole, the first hole is identical to the third hole, and the second screw is the same as the fourth screw.
  • the invention also includes a reflective sheet disposed in the backplane and located under the light guide plate, and an optical film set disposed on the light guide plate, wherein the reflective sheet is provided with first and second through holes corresponding to the first and second holes, respectively.
  • the backlight module of the present invention adopts a back plate which is formed by splicing a body and a bracket, and the body and the bracket are locked by two rows of screws, thereby effectively avoiding relative rotation between the body and the bracket, and at the same time,
  • the light guide plate is fixed while connecting the body and the bracket, thereby avoiding the separate design of the light guide plate fixing structure and reducing the production cost;
  • the body of the back plate is made of high-strength material, and the bracket is made of high thermal conductive material, The strength of the back plate is ensured, and the heat conduction effect is good, thereby improving the grade of the backlight module.
  • FIG. 1 is a schematic structural view of a conventional backlight module
  • FIG. 2 is a schematic structural view of a conventional double-sided light-incident backlight module
  • FIG. 3 is a schematic structural view of a backlight module of the present invention.
  • FIG. 4 is a perspective exploded view of the back plate of FIG. 3;
  • FIG. 5 is a schematic structural view of still another embodiment of a backlight module of the present invention.
  • Figure 6 is a perspective exploded view of the backing plate of Figure 5. detailed description
  • the present invention provides a backlight module, including: a backboard 2, disposed on The light guide plate 4 in the back plate 2 and the first backlight 6 disposed in the back plate 2.
  • the backplane 2 includes a body 22 and a first bracket 24 connected to the body 22.
  • the body 22 includes a substrate 222 and a side plate 224 integrally connected to the substrate 222.
  • the substrate 222 is adjacent to the first bracket 24 - side
  • a first lap portion 226 is disposed at an edge of the first bracket 24, and a first connecting portion 246 is disposed corresponding to the first lap portion 226 of the first bracket 24.
  • the first lap portion 226 is combined.
  • Lap the first connecting portion 246 and lock it together by a plurality of first and second screws 23, 25, the first and second screws 23, 25 are arranged in two rows, thereby effectively preventing the body 22 and the second
  • the relative rotation between the brackets 24 further increases the optical grade of the backlight module.
  • the light guide plate 4 is provided with a first hole portion 452 corresponding to the second screw 25, and the second screw 25 passes through the first connecting portion 246 and the first overlapping portion 226, and extends into the first hole portion of the light guide plate 4. Within 452.
  • the first connecting portion 246 is provided with two rows of threaded holes 248, and the first overlapping portion 226 is provided with two rows of through holes 228.
  • the first and second screws 23 and 25 respectively pass through the through holes 228 and are then screwed to
  • the threaded hole 248 is inserted into the threaded hole 248 and the second hole 25 is engaged with the first hole portion 452 to assist in fixing the light guide plate 4.
  • the body 22 is made of a high-strength material, preferably iron gilt, to ensure the strength of the back plate 2;
  • the first bracket 24 is made of a highly thermally conductive material, preferably aluminum iridium, the first backlight 6 And being mounted on the first bracket 24 to enhance the heat conduction effect and improve the grade of the backlight module.
  • the backlight module of the present invention further includes a reflection sheet 8 disposed in the back sheet 2 and located under the light guide plate 4, and an optical film group 9 disposed on the light guide plate 4.
  • the reflection sheet 8 is corresponding to the first hole portion 452.
  • a schematic structural view of a backlight module according to another embodiment of the present invention includes a body 22 and a first bracket 24 connected to the body 22 .
  • the connection structure of the first bracket 24 and the body 22 is the same as the foregoing embodiment.
  • the body 22 includes a substrate 222, and a second bracket 26 connected to the substrate 222 opposite to the other side edge of the first bracket 24, and a second backlight 7 is mounted on the second bracket 26,
  • the second bracket 26 is made of a highly thermally conductive material, preferably aluminum sheet metal, to improve the heat conduction effect;
  • the substrate 222 is made of a high-strength material, preferably iron-gold, to increase the strength;
  • the substrate 222 is close to
  • the second bracket 26 is provided with a second overlapping portion 229 , and the second bracket 26 is adjacent to the substrate 222 , and the other side edge is provided with a second connecting portion 269 corresponding to the second overlapping portion 229 .
  • the second overlapping portion 229 is overlapped with the second connecting portion 269, and the plurality of third and fourth screws 27, 29 lock the second overlapping portion 229 and the second connecting portion 269 together, and the plurality of third portions It is arranged in two rows with the fourth screws 27, 29.
  • the light guide plate 4 is provided with a second hole portion 492 corresponding to the fourth screw 29, and the fourth screw 29 extends into the second hole portion 492 of the light guide plate 4 to assist in fixing the light guide plate 4.
  • the second connecting portion 269 is provided with two rows of threaded holes 270, and the second overlapping portion 229 is provided with two rows of through holes 230.
  • the third and fourth screws 27 and 29 respectively pass through the through holes 230 and are then screwed to In the threaded hole 270, and the fourth screw 29 passes through the threaded hole 270 and is coupled to the second hole portion 492, the first screw 23 is the same as the third screw 27, and the second screw 25 is the same as the fourth screw 29. .
  • the backlight module of the present embodiment further includes a reflective sheet 8 disposed on the back plate 2 and located under the light guide plate 4, and an optical film group 9 disposed on the light guide plate 4, the reflective sheet 8
  • the first and second holes 452, 492 are respectively provided with first and second through holes 82, 84 for the second and fourth screws 25, 29 to pass through, respectively.
  • the backlight module of the present invention adopts a back plate which is formed by splicing a body and a bracket, and the body and the bracket are locked by two rows of screws, thereby effectively avoiding relative rotation between the body and the bracket, and at the same time, connecting The body and the bracket simultaneously fix the light guide plate, thereby avoiding the separate design of the light guide plate fixing structure and reducing the production cost; and the body of the back plate is made of high-strength material, and the bracket is made of high thermal conductive material, which is guaranteed The strength of the backboard has a good thermal conductivity, which in turn improves the grade of the backlight module.

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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

提供了一种背光模组，其包括：背板（2）、设于背板（2）内的导光板（4）及设于背板（2）内的第一背光源（6），所述背板（2）包括本体（22）及连接于该本体（22）的第一支架（24），所述本体（22）包括基板（222），所述基板（222）靠近第一支架（24）的一侧边缘设有第一搭接部（226），所述第一支架（24）靠近基板（222）的一侧边缘对应于第一搭接部（226）设有第一连接部（246），所述第一搭接部（226）与第一连接部（246）搭接，数个第一与第二螺钉（23，25）将第一搭接部（226）与第一连接部（246）锁合在一起，且该数个第一与第二螺钉（23，25）呈两排设置。该背光模组采用由本体（22）与支架（24）拼接而成的背板（2），通过两排螺钉（23，25）锁合本体（22）与支架（24），有效避免了本体（22）与支架（24）之间的相对转动。

Description

背光模组
技术领域
本发明涉及液晶显示器领域， 尤其涉及背光模组。 背景技术
液晶显示装置（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 为背光型液晶显示器， 其包括液晶显示面板及背光模组 （ backlight module ) 。 液晶显示面板的工作原理是在两片平行的玻璃基板中间放置液 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。 背光模组依照背光源 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 模组是将背光源例如 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例， 如 LED 背光源 （lightbar ) , 设于液晶显示面板侧后方的背板边缘， LED 背 光源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显示面板。
现有的背光模组主要包括： 背板、 导光板、 背光源、 及光学膜片， 而 背板一般是由同一种材料制作而成， 所用的材料是铝板、 铁板或塑胶。 由 于铝板价格比铁板的价格贵， 可以把铝背板中那部分没有发挥散热作用的 铝板用铁板来代替， 然后将不同材料的背板两部分拼接在一起， 这样就可 以做成复合材料的拼接背板， 从而有利于降低成本。
请参阅图 1 , 其为现有具有拼接背 200 的背光模组， 该拼接背板 200 包括本体 202及连接于本体 202—端第一支架 204, 该本体 202与第一支 架 204通过螺釘 203锁合在一起， 其中螺釘 203呈一排设置， 这就导致本 体 202与第一支架 204可能发生相对转动， 导致拼接背板 200的平整度降 低， 从而导致光学品级下降， 不利于成本控制。
如图 2所示， 其为现有具有拼接背板的双侧入光的背光模组， 该拼接 背板 200，的本体 202，包括基板 205及连接在基板 205的第二支架 206, 该 第二支架 206通过一排螺釘 207与基板 205锁合在一起， 其同样具有上述 缺陷。
此外， 在背光模组中， 导光板的固定需要设计特定的固定结构才能实 现， 这在一定程度上增加了生产成本。 发明内容
本发明的目的在于提供一种背光模组， 结构筒单， 散热性能好， 强度 高， 成本低， 且有利于提高光学品级。
本发明的另一目的在于提供一种背光模组， 结构筒单， 散热性能好， 强度高， 成本低， 有利于提高光学品级， 且方便固定导光板。
为实现上述目的， 本发明提供一种背光模组， 包括： 背板、 设于背板 内的导光板及设于背板内的第一背光源， 所述背板包括本体及连接于该本 体的第一支架， 所述本体包括基板， 所述基板靠近第一支架的一侧边缘设 有第一搭接部， 所述第一支架靠近基板的一侧边缘对应于第一搭接部设有 第一连接部， 所述第一搭接部与第一连接部搭接， 数个第一与第二螺釘将 第一搭接部与第一连接部锁合在一起， 且该数个第一与第二螺釘呈两排设 置。
所述导光板对应该第二螺釘设有第一孔部， 该第二螺釘伸入导光板的 第一孔部内。
所述本体还包括一体连接于基板的侧板， 所述本体由高强度材料制 成， 所述第一支架由高导热性材料制成， 所述第一背光源安装于所述第一 支架上， 所述本体由铁钣金制成； 所述第一支架由铝钣金制成。
所述第一连接部设有两排螺纹孔， 所述第一搭接部设有两排通孔， 第 一与第二螺釘分别穿过通孔之后螺锁于螺纹孔内， 且第二螺釘穿过螺纹孔 后与第一孔部配合连接。
还包括设于背板内且位于导光板下的反射片、 及设于导光板上的光学 膜片组， 所述反射片对应第一孔部设有第一穿孔。
本体还包括连接于所述基板相对于第一支架的另一侧边缘的第二支 架， 一第二背光源安装于该第二支架上， 所述第二支架由高导热性材料制 成， 所述基板由高强度材料制成， 所述基板靠近第二支架的一侧边缘设有 第二搭接部， 所述第二支架靠近基板另一侧边缘对应于第二搭接部设有第 二连接部， 所述第二搭接部与第二连接部搭接， 数个第三与第四螺釘将第 二搭接部与第二连接部锁合在一起， 且该数个第三与第四螺釘呈两排设 置。 所述导光板对应该第四螺釘设有第二孔部 , 该第四螺釘伸入导光板的 第二孔部内。
所述第二支架由铝钣金制成， 所述基板由铁钣金制成。
所述第二连接部设有两排螺纹孔， 所述第二搭接部设有两排通孔， 第 三与第四螺釘分别穿过通孔之后螺锁于螺纹孔内， 且第四螺釘穿过螺纹孔 后与第二孔部配合连接， 所述第一螺釘与第三螺釘相同， 所述第二螺釘与 第四螺钉相同。
还包括设于背板内且位于导光板下的反射片、 及设于导光板上的光学 膜片组， 所述反射片对应第一与第二孔部分别设有第一与第二穿孔。
本发明的有益效果： 本发明的背光模组， 采用由本体与支架拼接而成 的背板， 通过两排螺釘锁合本体与支架， 有效避免了本体与支架之间的相 对转动， 同时， 在连接本体与支架的同时将导光板进行固定， 避免了导光 板固定结构的单独设计， 降低了生产成本； 且该背板的本体采用高强度材 料制成， 支架采用高导热性材料制成， 既保证背板强度， 又具有良好的导 热效果， 进而提升了背光模组的品级。
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为现有背光模组结构示意图；
图 2为现有双侧入光背光模组结构示意图；
图 3为本发明背光模组结构示意图；
图 4为图 3中背板的立体分解示意图；
图 5为本发明背光模组又一实施例的结构示意图；
图 6为图 5中背板的立体分解示意图。 具体实施方式
为更进一步阐述本发明所采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 3 及图 4, 本发明提供一种背光模组， 包括： 背板 2、 设于 背板 2内的导光板 4及设于背板 2内的第一背光源 6。
所述背板 2包括本体 22及连接于该本体 22的第一支架 24, 所述本体 22包括基板 222及一体连接于该基板 222的侧板 224, 所述基板 222靠近 第一支架 24—侧边缘设有第一搭接部 226, 所述第一支架 24靠近基板 22 的一侧边缘对应于第一搭接部 226设有第一连接部 246, 组合时， 所述第 一搭接部 226搭接于第一连接部 246, 并通过数个第一与第二螺釘 23、 25 锁合在一起， 该第一与第二螺釘 23、 25 呈两排设置， 进而可以有效防止 本体 22与第一支架 24之间的相对转动， 进而提高了背光模组光学品级。
所述导光板 4对应该第二螺釘 25设有第一孔部 452, 该第二螺釘 25 穿过该第一连接部 246与第一搭接部 226, 伸入导光板 4的第一孔部 452 内。
所述第一连接部 246设有两排螺纹孔 248, 所述第一搭接部 226设有 两排通孔 228, 第一与第二螺釘 23、 25分别穿过通孔 228之后螺锁于螺纹 孔 248 内， 且第二螺釘 25穿过螺纹孔 248后与第一孔部 452配合连接， 从而协助将该导光板 4固定。
所述本体 22 由高强度材料制成， 优选铁钣金， 进而保证背板 2 的强 度； 所述第一支架 24 由高导热性材料制成， 优选铝钣金， 所述第一背光 源 6 与安装于所述第一支架 24 上， 增强导热效果， 提升背光模组的品 级。
本发明背光模组还包括设于背板 2 内且位于导光板 4下的反射片 8、 及设于导光板 4上的光学膜片组 9, 所述反射片 8对应第一孔部 452设有 第一穿孔 82, 所述第二螺釘 25贯穿该第一穿孔 82, 进而协助将该反射片 8固定。
请参阅图 5及图 6, 为本发明背光模组又一实施例的结构示意图， 所 述背板 2，包括本体 22，及连接于本体 22，的第一支架 24。 第一支架 24与本 体 22，的连接结构同前述实施例。 本体 22，包括基板 222，及连接于所述基板 222，相对于第一支架 24的另一侧边缘的第二支架 26, —第二背光源 7安 装于该第二支架 26上， 所述第二支架 26由高导热性材料制成， 优选为铝 钣金， 以提高导热效果； 所述基板 222，由高强度材料制成， 优选为铁钣 金， 以增加强度； 所述基板 222，靠近第二支架 26 的一侧边缘设有第二搭 接部 229, 所述第二支架 26靠近基板 222，的另一侧边缘对应于第二搭接部 229设有第二连接部 269, 所述第二搭接部 229与第二连接部 269搭接， 数个第三与第四螺釘 27、 29将第二搭接部 229与第二连接部 269锁合在 一起， 且该数个第三与第四螺釘 27、 29呈两排设置。 所述导光板 4，对应该第四螺釘 29设有第二孔部 492, 该第四螺釘 29 伸入导光板 4，的第二孔部 492内， 从而协助将导光板 4，固定。
所述第二连接部 269设有两排螺纹孔 270, 所述第二搭接部 229设有 两排通孔 230, 第三与第四螺釘 27、 29分别穿过通孔 230之后螺锁于螺纹 孔 270内， 且第四螺釘 29穿过螺纹孔 270后与第二孔部 492配合连接， 所述第一螺釘 23与第三螺釘 27相同， 所述第二螺釘 25与第四螺釘 29相 同。
本实施例中的背光模组还包括设于背板 2，内且位于导光板 4，下的反射 片 8，、 及设于导光板 4，上的光学膜片组 9, 所述反射片 8，对应第一与第二 孔部 452、 492分别设有第一与第二穿孔 82、 84以分别供第二与第四螺釘 25、 29穿过。
综上所述， 本发明的背光模组， 采用由本体与支架拼接而成的背板， 通过两排螺釘锁合本体与支架， 有效避免了本体与支架之间的相对转动， 同时， 在连接本体与支架的同时将导光板进行固定， 避免了导光板固定结 构的单独设计， 降低了生产成本； 且该背板的本体采用高强度材料制成， 支架采用高导热性材料制成， 既保证背板强度， 又具有良好的导热效果， 进而提升了背光模组的品级。
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、 一种背光模组， 包括： 背板、 设于背板内的导光板及设于背板内 的第一背光源， 所述背板包括本体及连接于该本体的第一支架， 所述本体 包括基板， 所述基板靠近第一支架的一侧边缘设有第一搭接部， 所述第一 支架靠近基板的一侧边缘对应于第一搭接部设有第一连接部， 所述第一搭 接部与第一连接部搭接， 数个第一与第二螺釘将第一搭接部与第一连接部 锁合在一起， 且该数个第一与第二螺釘呈两排设置。
2、 如权利要求 1 所述的背光模组， 其中， 所述导光板对应该第二螺 釘设有第一孔部， 该第二螺釘伸入导光板的第一孔部内。
3、 如权利要求 1 所述的背光模组， 其中， 所述本体还包括一体连接 于基板的侧板， 所述本体由高强度材料制成， 所述第一支架由高导热性材 料制成， 所述第一背光源安装于所述第一支架上， 所述本体由铁钣金制 成； 所述第一支架由铝钣金制成。
4、 如权利要求 2 所述的背光模组， 其中， 所述第一连接部设有两排 螺纹孔， 所述第一搭接部设有两排通孔， 第一与第二螺釘分别穿过通孔之 后螺锁于螺纹孔内， 且第二螺釘穿过螺纹孔后与第一孔部配合连接。
5、 如权利要求 2 所述的背光模组， 还包括设于背板内且位于导光板 下的反射片、 及设于导光板上的光学膜片组， 所述反射片对应第一孔部设 有第一穿孔。
6、 如权利要求 2 所述的背光模组， 其中， 本体还包括连接于所述基 板相对于第一支架的另一侧边缘的第二支架， 一第二背光源安装于该第二 支架上， 所述第二支架由高导热性材料制成， 所述基板由高强度材料制 成， 所述基板靠近第二支架的一侧边缘设有第二搭接部， 所述第二支架靠 近基板另一侧边缘对应于第二搭接部设有第二连接部， 所述第二搭接部与 第二连接部搭接， 数个第三与第四螺釘将第二搭接部与第二连接部锁合在 一起， 且该数个第三与第四螺釘呈两排设置。
7、 如权利要求 6 所述的背光模组， 其中， 所述导光板对应该第四螺 釘设有第二孔部， 该第四螺釘伸入导光板的第二孔部内。
8、 如权利要求 6 所述的背光模组， 其中， 所述第二支架由铝钣金制 成， 所述基板由铁钣金制成。
9、 如权利要求 7 所述的背光模组， 其中， 所述第二连接部设有两排 螺纹孔， 所述第二搭接部设有两排通孔， 第三与第四螺釘分别穿过通孔之 后螺锁于螺纹孔内， 且第四螺釘穿过螺纹孔后与第二孔部配合连接， 所述 第一螺釘与第三螺釘相同， 所述第二螺釘与第四螺釘相同。
10、 如权利要求 7所述的背光模组， 还包括设于背板内且位于导光板 下的反射片、 及设于导光板上的光学膜片组， 所述反射片对应第一与第二 孔部分别设有第一与第二穿孔。
11、 一种背光模组， 包括： 背板、 设于背板内的导光板及设于背板内 的第一背光源， 所述背板包括本体及连接于该本体的第一支架， 所述本体 包括基板， 所述基板靠近第一支架的一侧边缘设有第一搭接部， 所述第一 支架靠近基板的一侧边缘对应于第一搭接部设有第一连接部， 所述第一搭 接部与第一连接部搭接， 数个第一与第二螺釘将第一搭接部与第一连接部 锁合在一起， 且该数个第一与第二螺釘呈两排设置；
其中， 所述导光板对应该第二螺釘设有第一孔部， 该第二螺釘伸入导 光板的第一孔部内；
其中， 所述本体还包括一体连接于基板的侧板， 所述本体由高强度材 料制成， 所述第一支架由高导热性材料制成， 所述第一背光源安装于所述 第一支架上， 所述本体由铁钣金制成； 所述第一支架由铝钣金制成；
其中， 所述第一连接部设有两排螺纹孔， 所述第一搭接部设有两排通 孔， 第一与第二螺釘分别穿过通孔之后螺锁于螺纹孔内， 且第二螺釘穿过 螺纹孔后与第一孔部配合连接；
还包括设于背板内且位于导光板下的反射片、 及设于导光板上的光学 膜片组， 所述反射片对应第一孔部设有第一穿孔。
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