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WO2014056266A1 - 背光模组 - Google Patents

背光模组 Download PDF

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Publication number
WO2014056266A1
WO2014056266A1 PCT/CN2012/083528 CN2012083528W WO2014056266A1 WO 2014056266 A1 WO2014056266 A1 WO 2014056266A1 CN 2012083528 W CN2012083528 W CN 2012083528W WO 2014056266 A1 WO2014056266 A1 WO 2014056266A1
Authority
WO
WIPO (PCT)
Prior art keywords
back frame
backlight module
light source
plate
side plate
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2012/083528
Other languages
English (en)
French (fr)
Inventor
俞刚
顾毓波
杨流洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
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 Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US13/806,798 priority Critical patent/US20140104873A1/en
Publication of WO2014056266A1 publication Critical patent/WO2014056266A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—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
    • G02B6/009—Positioning aspects of the light source 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
    • G02B6/0033—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
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/34—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 reflector

Definitions

  • the present invention relates to the field of liquid crystal display, and in particular 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 display devices, which include 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 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 energization or not, and the light of the backlight module is refracted. Come out to produce the picture. Since the liquid crystal panel itself does not emit light, the light source provided by the backlight module needs to be used 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 to directly form a surface light source for the liquid crystal panel.
  • the side-lit backlight module has a backlight LED strip (Light bar) disposed on the edge of the back panel behind the liquid crystal panel, and the light emitted by the LED strip is incident on the light guide plate (LGP, Light Guide Plate) side. The 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 panel.
  • LGP Light Guide Plate
  • FIG. 1 it is a schematic structural diagram of a conventional liquid crystal display device.
  • the liquid crystal display device includes a front frame 100 , a rear frame 300 disposed in cooperation with the front frame 100 , and a front frame 100 and a rear frame 300 .
  • the liquid crystal display panel 500 and the backlight module 700 disposed between the front frame 100 and the rear frame 300 and located under the liquid crystal display panel 500.
  • the liquid crystal display panel 500 and the backlight module 700 are further provided with black adhesive.
  • the light blocking unit 900 is fixed on the diffuser plate 702 of the backlight module 700 adjacent to the non-display area 502 of the liquid crystal display panel 500 to prevent light leakage, but the light blocking unit 900
  • the process of sticking to the diffuser plate 502 is cumbersome and tends to stick the light blocking unit 900, so that the partial light blocking unit 900 blocks the display area 504 of the liquid crystal display panel 500, causing display problems of the liquid crystal display device.
  • FIG. 2 it is a schematic structural diagram of an existing backlight module 500 , and the backlight module 500, comprising: a back frame 520, a light source 540 disposed in the back frame 520, a reflective sheet 560 disposed in the back frame 520, a light guide plate 580 disposed on the reflective sheet 560, and a guide
  • the light plate 580, the optical film set 590 on the upper, and the plastic frame 530 disposed on the back frame 520, the plastic frame 530 is made of 10% titanium oxide mixed with a highly reflective material polycarbonate.
  • the back frame 520 is made of polycarbonate.
  • the plastic frame 530 has both reflectivity and light blocking property, and the back frame 520 has better reflectivity, which solves the problem of backlight leakage in FIG. It has a high light utilization rate, but due to the high cost of the high-reflectivity material polycarbonate mixed with 10% titanium oxide and polycarbonate, it is not conducive to cost control. Summary of the invention
  • the present invention provides a backlight module, including: a back frame, a light source disposed in the back frame, a reflective sheet disposed in the back frame, a light guide plate disposed on the reflective sheet, and disposed on the back frame
  • the plastic frame, the corresponding light source position on the back frame and the plastic frame is coated with a layer of high reflective material.
  • the back frame includes a bottom plate and a first side plate connected to the bottom plate, and the first side plate is provided with an engaging groove near the bottom plate end.
  • the plastic frame includes a top plate and a second side plate connected to the top plate.
  • the free end of the second side plate is provided with an engaging portion corresponding to the engaging groove, and the engaging portion is engaged in the engaging groove, and then the back frame is Assembled with the plastic frame.
  • the engaging portion is inclined from the inner side of the free end of the second side plate toward the top plate, and has a sloped surface which is disposed toward the engaging groove.
  • the light source is electrically connected to an external circuit through a wire.
  • the corresponding wire on the top plate of the plastic frame is provided with a receiving groove, and the wire is received in the receiving groove.
  • the side wall of the accommodating groove is provided with a hook for clamping the electric wire in the accommodating groove.
  • the heat sink disposed under the reflective sheet, a diffusion sheet disposed on the light guide plate, and a prism sheet disposed on the diffusion sheet.
  • the light source is a CCFL linear light source.
  • the highly reflective material layer is an aluminum powder layer.
  • the present invention further provides a backlight module, comprising: a back frame, a light source disposed in the back frame, a reflective sheet disposed in the back frame, a light guide plate disposed on the reflective sheet, and a plastic frame disposed on the back frame.
  • the corresponding light source positions on the back frame and the plastic frame are coated with a layer of high reflective material;
  • the back frame includes a bottom plate and a first side plate connected to the bottom plate, and the first side plate is supported by a snap groove is arranged near the bottom plate;
  • the plastic frame includes a top plate and a second side plate connected to the top plate.
  • the free end of the second side plate is provided with an engaging portion corresponding to the engaging groove, and the engaging portion is engaged in the engaging groove, and then The back frame is assembled with the plastic frame;
  • the engaging portion is inclined from the inner side of the free end of the second side plate toward the top plate, and has a sloped surface, the inclined surface is disposed toward the engaging groove;
  • the light source is electrically connected to an external circuit through a wire
  • the corresponding wire on the top plate of the plastic frame is provided with a receiving slot, and the wire is received in the receiving slot;
  • a sidewall of the accommodating groove is provided with a hook for arranging the electric wire in the accommodating groove
  • the invention further includes a heat sink disposed under the reflective sheet, a diffusion sheet disposed on the light guide plate, and a prism sheet disposed on the diffusion sheet;
  • the light source is a CCFL linear light source
  • the high reflective material layer is an aluminum powder layer.
  • the backlight module provided by the present invention improves the utilization of light by coating a high-reflection material layer on the back frame and the plastic frame at the light source, has a simple structure, and the amount of the high-reflection material is small.
  • the utility model can effectively control the cost, and the back frame and the plastic frame are connected and connected, the disassembly and assembly is convenient, the time is saved, the production efficiency is improved, and the production cost is reduced.
  • FIG. 1 is a schematic structural view of a conventional liquid crystal display device
  • FIG. 2 is a schematic structural view of a conventional backlight module
  • FIG. 3 is a schematic structural view of a backlight module of the present invention. detailed description
  • the present invention provides a backlight module, including: a back frame 2, a light source 4 disposed in the back frame 2, a reflective sheet 6 disposed in the back frame 2, and a light guide plate disposed on the reflective sheet 6.
  • the plastic frame 9 disposed on the back frame 2, the corresponding light source 4 on the back frame 2 and the plastic frame 9 is coated with a high reflective material layer 42 for conducting the light emitted by the light source 4. The reflection causes more light to enter the light guide plate 8, thereby effectively improving the light utilization efficiency.
  • the high reflection material used is aluminum powder
  • the high reflection material layer 42 is an aluminum powder layer.
  • the back frame 2 includes a bottom plate 22 and a first side plate 24 connected to the bottom plate 22.
  • the first side plate 24 is provided with an engaging groove 242 near the end of the bottom plate 22.
  • the plastic frame 9 includes a top plate 92 and a second side plate 94 connected to the top plate 92.
  • the free end of the second side plate 94 is provided with an engaging portion 942 corresponding to the engaging groove 242, and the engaging portion 942 is engaged with the card.
  • the back frame 2 and the plastic frame 9 are assembled together.
  • the engaging portion 942 is inclined from the inner side of the free end of the second side plate 94 toward the top plate 92, and has a slope 944 which is disposed toward the engaging groove 242.
  • the plastic frame 9 is placed above the back frame 2, and the force is applied downwards, and the inclined surface 944 is subjected to an outward force, so that the second side plate 94 is outwardly opened, and the engaging portion 942 is engaged.
  • the engaging groove 242 is in the engaging groove 242
  • the outward force is lost, the second side plate 94 is deformed and the engaging portion 942 is engaged with the engaging groove 242, and the back frame 2 and the plastic frame 9 are assembled.
  • an outward force is applied to the inclined surface 944, so that the second side plate 94 is flared outward, and the engaging portion 942 slides out of the engaging groove 242 while applying an upward force, so that the plastic frame 9 and the back frame 2 are Separation. It is easy to assemble and disassemble, saves a lot of time, improves production efficiency, and reduces production costs.
  • the light source 4 is electrically connected to an external circuit (not shown) via an electric wire 44, thereby supplying electric power to the light source 4 to cause the light source 4 to emit light.
  • the corresponding wire 44 of the top plate 92 of the plastic frame 9 is provided with a receiving groove 922, and the wire 44 is received in the receiving groove 922.
  • a sidewall 924 is provided on the side wall of the accommodating groove 922 for accommodating the wire 44 in the accommodating groove 922.
  • the backlight module of the present invention further includes a heat sink 7 disposed under the reflective sheet 6, a diffusion sheet 82 disposed on the light guide plate 8, and a prism sheet 84 disposed on the diffusion sheet 82.
  • the light source 4 is a CCFL linear light source, and a part of the light emitted directly enters the light guide plate 8 through the light incident surface of the light guide plate 8. The other portion is reflected by the reflection sheet 7 and enters the light guide plate 8. The light is in the light guide plate 8. Propagation, simultaneous total reflection, refraction, etc., is further scattered by the diffusion sheet 82 and the prism sheet 84 to provide a uniformly distributed surface light source.
  • the backlight module improves the utilization of light by coating a high reflective material layer on the back frame and the plastic frame at the light source, and has a simple structure and a high reflective material amount. Less, it can effectively control the cost, and the back frame and the plastic frame are connected and connected, which is convenient to disassemble and assemble, saves a lot of time, improves the production efficiency, and further reduces the production cost.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Description

背光模组 技术领域
本发明涉及液晶显示领域， 尤其涉及一种背光模组。 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 为背光型液晶显示装置， 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 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背光源 LED 灯条（Light bar )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 ( LGP , Light Guide Plate )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面 板。
如图 1 所示， 为一种现有的液晶显示装置的结构示意图， 该液晶显示 装置包括前框 100、 与前框 100配合设置的后框 300、 设于前框 100与后 框 300之间的液晶显示面板 500及设于前框 100与后框 300之间且位于液 晶显示面板 500下方的背光模组 700, 所述液晶显示面板 500与背光模组 700之间还设有由黑色胶黏剂材料制成的光线封闭单元 900, 该光线封闭 单元 900固定于背光模组 700的扩散板 702上邻近液晶显示面板 500的非 显示区域 502处， 以防止光线外泄， 但是将光线封闭单元 900黏贴于扩散 板 502上的过程比较麻烦且容易出现将光线封闭单元 900黏偏的情况， 使 部分光封闭单元 900挡住液晶显示面板 500的显示区域 504, 造成液晶显 示装置显示问题。
如图 2 所示， 为一种现有背光模组 500，的结构示意图， 该背光模组 500，包括： 背框 520，、 设于背框 520，内的光源 540，、 设于背框 520，内的反 射片 560，、 设于反射片 560，上的导光板 580，、 设于导光板 580，上的光学膜 片组 590，、 及设于背框上 520，的胶框 530，， 该胶框 530，由具有高反射性的 材料聚碳酸酯混合 10%的氧化钛做成， 背框 520，由聚碳酸酯做成， 该胶框 530，同时具有反射性和挡光性， 背框 520，具有较好的反射性， 解决了图 1 中背光光线外泄的问题， 保证背光具有较高的光线利用率， 但由于具有高 反射性的材料聚碳酸酯混合 10%的氧化钛与聚碳酸酯的成本均较高， 不利 于成本控制。 发明内容
本发明的目的在于提供一种背光模组， 其结构简单， 具有较好的背光 质量， 且能有效控制成本。
为实现上述目的， 本发明提供一种背光模组， 包括： 背框、 设于背框 内的光源、 设于背框内的反射片、 设于反射片上的导光板、 及设于背框上 的胶框， 所述背框和胶框上对应光源位置涂布有高反射材料层。
所述背框包括底板及连接于底板的第一侧板， 所述第一侧板靠近底板 端设有卡合槽。
所述胶框包括顶板及连接顶板的第二侧板， 该第二侧板的自由端对应 卡合槽设有卡合部， 所述卡合部卡合于卡合槽内， 进而将背框与胶框组装 在一起。
所述卡合部由第二侧板的自由端内侧倾斜朝向顶板延伸设置， 其具有 一斜面， 该斜面朝向卡合槽设置。
所述光源通过电线与外部电路电性连接。
所述胶框的顶板上对应电线设有容置槽， 所述电线容置于该容置槽 内。
所述容置槽的侧壁上设有一^ ^勾， 用于将电线卡设于容置槽内。
还包括设于反射片下的散热片、 设于导光板上的扩散片及设于扩散片 上的棱镜片。
所述光源为 CCFL线性光源。
所述高反射材料层为铝粉层。
本发明还提供一种背光模组， 包括： 背框、 设于背框内的光源、 设于 背框内的反射片、 设于反射片上的导光板、 及设于背框上的胶框， 所述背 框和胶框上对应光源位置涂布有高反射材料层；
其中， 所述背框包括底板及连接于底板的第一侧板， 所述第一侧板靠 近底板端设有卡合槽；
其中， 所述胶框包括顶板及连接顶板的第二侧板， 该第二侧板的自由 端对应卡合槽设有卡合部， 所述卡合部卡合于卡合槽内， 进而将背框与胶 框组装在一起；
其中， 所述卡合部由第二侧板的自由端内侧倾斜朝向顶板延伸设置， 其具有一斜面， 该斜面朝向卡合槽设置；
其中， 所述光源通过电线与外部电路电性连接；
其中， 所述胶框的顶板上对应电线设有容置槽， 所述电线容置于该容 置槽内；
其中， 所述容置槽的侧壁上设有一^ ^勾， 用于将电线卡设于容置槽 内；
还包括设于反射片下的散热片、 设于导光板上的扩散片及设于扩散片 上的棱镜片；
其中， 所述光源为 CCFL线性光源；
其中， 所述高反射材料层为铝粉层。
本发明的有益效果： 本发明提供的背光模组， 其通过在光源处的背框 和胶框上涂布高反射材料层， 提高光线的利用率， 结构简单， 且高反射材 料的用量较少， 可有效控制成本， 且其背框与胶框卡合连接， 拆装方便， 俭省大量时间， 提高了生产效率， 进而降低了生产成本。
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为一种现有的液晶显示装置的结构示意图；
图 2为一种现有背光模组的结构示意图；
图 3为本发明背光模组的结构示意图。 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 , 本发明提供一种背光模组， 包括： 背框 2、 设于背框 2 内的光源 4、 设于背框 2内的反射片 6、 设于反射片 6上的导光板 8、 及设 于背框 2上的胶框 9, 所述背框 2和胶框 9上对应光源 4位置涂布有高反 射材料层 42, 该高反射材料层 42将光源 4发出的光线进行反射， 使更多 的光线进入导光板 8 内， 有效提高光利用率， 本实施例中， 使用的高反射 材料为铝粉， 所述高反射材料层 42为铝粉层。
所述背框 2包括底板 22及连接于底板 22的第一侧板 24, 所述第一侧 板 24靠近底板 22端设有卡合槽 242。 所述胶框 9包括顶板 92及连接顶板 92 的第二侧板 94, 该第二侧板 94 的自由端对应卡合槽 242设有卡合部 942, 所述卡合部 942卡合于卡合槽 242 内， 进而将背框 2与胶框 9组装 在一起。 在本实施例中， 所述卡合部 942 由第二侧板 94 的自由端内侧倾 斜朝向顶板 92延伸设置， 其具有一斜面 944, 该斜面 944朝向卡合槽 242 设置。
安装时， 将胶框 9置于背框 2上方， 向下施加作用力， 斜面 944受到 向外的作用力， 进而使得第二侧板 94 向外张开， 至述所卡合部 942 卡合 于卡合槽 242 内时， 该向外的作用力消失， 第二侧板 94形变恢复， 卡合 部 942卡合于卡合槽 242 内， 进而将背框 2与胶框 9组装在一起。 拆卸 时， 对斜面 944施加向外的作用力， 使得第二侧板 94 向外张开， 卡合部 942 滑出卡合槽 242 , 同时施加向上的作用力， 使得胶框 9 与背框 2 分 离。 其拆装方便， 俭省大量时间， 提高了生产效率， 进而降低了生产成 本。
所述光源 4通过电线 44 与外部电路（未图示） 电性连接， 进而为光 源 4提供电能， 促使光源 4发光。
所述胶框 9的顶板 92上对应电线 44设有容置槽 922 , 所述电线 44容 置于该容置槽 922 内。 优选的， 所述容置槽 922 的侧壁上设有一^ ^勾 924, 用于将电线 44卡设于容置槽 922内。
本发明背光模组还包括设于反射片 6下的散热片 7、 设于导光板 8上 的扩散片 82及设于扩散片 82上的棱镜片 84。 所述光源 4为 CCFL线性光 源， 其发出的光线， 一部分直接通过导光板 8的入光面进入导光板 8 内， 另一部分通过反射片 7反射后进入导光板 8内， 光线在导光板 8内传播， 同时发生全反射、 折射等， 再经扩散片 82和棱镜片 84的进一步散射， 进 而提供分布均匀的面光源。
综上所述， 本发明提供的背光模组， 其通过在光源处的背框和胶框上 涂布高反射材料层， 提高光线的利用率， 结构简单， 且高反射材料的用量 较少， 可有效控制成本， 且其背框与胶框卡合连接， 拆装方便， 俭省大量 时间， 提高了生产效率， 进而降低了生产成本。
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： 背框、 设于背框内的光源、 设于背框内的 反射片、 设于反射片上的导光板、 及设于背框上的胶框， 所述背框和胶框 上对应光源位置涂布有高反射材料层。
2、 如权利要求 1 所述的背光模组， 其中， 所述背框包括底板及连接 于底板的第一侧板， 所述第一侧板靠近底板端设有卡合槽。
3、 如权利要求 2 所述的背光模组， 其中， 所述胶框包括顶板及连接 顶板的第二侧板， 该第二侧板的自由端对应卡合槽设有卡合部， 所述卡合 部卡合于卡合槽内， 进而将背框与胶框组装在一起。
4、 如权利要求 3 所述的背光模组， 其中， 所述卡合部由第二侧板的 自由端内侧倾斜朝向顶板延伸设置， 其具有一斜面， 该斜面朝向卡合槽设 置。
5、 如权利要求 3 所述的背光模组， 其中， 所述光源通过电线与外部 电路电性连接。
6、 如权利要求 5 所述的背光模组， 其中， 所述胶框的顶板上对应电 线设有容置槽， 所述电线容置于该容置槽内。
7、 如权利要求 6 所述的背光模组， 其中， 所述容置槽的侧壁上设有 一卡勾， 用于将电线卡设于容置槽内。
8、 如权利要求 1 所述的背光模组， 还包括设于反射片下的散热片、 设于导光板上的扩散片及设于扩散片上的棱镜片。
9、 如权利要求 1 所述的背光模组， 其中， 所述光源为 CCFL线性光 源。
10、 如权利要求 1 所述的背光模组， 其中， 所述高反射材料层为铝粉 层。
11、 一种背光模组， 包括： 背框、 设于背框内的光源、 设于背框内的 反射片、 设于反射片上的导光板、 及设于背框上的胶框， 所述背框和胶框 上对应光源位置涂布有高反射材料层；
其中， 所述背框包括底板及连接于底板的第一侧板， 所述第一侧板靠 近底板端设有卡合槽；
其中， 所述胶框包括顶板及连接顶板的第二侧板， 该第二侧板的自由 端对应卡合槽设有卡合部， 所述卡合部卡合于卡合槽内， 进而将背框与胶 框组装在一起； 其中， 所述卡合部由第二侧板的自由端内侧倾斜朝向顶板延伸设置， 其具有一斜面， 该斜面朝向卡合槽设置；
其中， 所述光源通过电线与外部电路电性连接；
其中， 所述胶框的顶板上对应电线设有容置槽， 所述电线容置于该容 置槽内；
其中， 所述容置槽的侧壁上设有一^ ^勾， 用于将电线卡设于容置槽 内；
还包括设于反射片下的散热片、 设于导光板上的扩散片及设于扩散片 上的棱镜片；
其中， 所述光源为 CCFL线性光源；
其中， 所述高反射材料层为铝粉层。
PCT/CN2012/083528 2012-10-12 2012-10-26 背光模组 Ceased WO2014056266A1 (zh)

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