WO2016161663A1 - 显示装置及其背光模组 - Google Patents

显示装置及其背光模组 Download PDF

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Publication number
WO2016161663A1
WO2016161663A1 PCT/CN2015/076441 CN2015076441W WO2016161663A1 WO 2016161663 A1 WO2016161663 A1 WO 2016161663A1 CN 2015076441 W CN2015076441 W CN 2015076441W WO 2016161663 A1 WO2016161663 A1 WO 2016161663A1
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WO
WIPO (PCT)
Prior art keywords
light guide
guide plate
backlight module
light
reinforcing member
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PCT/CN2015/076441
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English (en)
French (fr)
Inventor
周革革
Original Assignee
武汉华星光电技术有限公司
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Application filed by 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US14/443,613 priority Critical patent/US9733421B2/en
Publication of WO2016161663A1 publication Critical patent/WO2016161663A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—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
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—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
    • G02B6/0033—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
    • 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
    • G02B6/0051—Diffusing 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
    • G02B6/0033—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
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement 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
    • G02B6/0065—Manufacturing aspects; Material aspects
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
    • 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
    • G02F2201/08—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 light absorbing layer

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a display device and a backlight module thereof.
  • LCD Liquid Crystal Display
  • LCD displays have become the mainstream of display technology due to their advantages such as ultra-thin, light weight, no radiation, and stable performance.
  • 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, wherein the display panel is mounted and protected by the frame of the backlight module.
  • the backlight module generally includes: a light guide plate, a plastic frame disposed around the light guide plate, a flexible circuit board, an optical film, and a light shielding tape, and the flexible circuit board is fixed on the light guide plate and the glue through the light shielding tape.
  • the optical film is fixed on the plastic frame by the light shielding tape.
  • Such a conventional backlight module has a certain thickness due to the plastic frame itself, which inevitably increases the thickness of the backlight module; and there is an error in the assembly process of the light guide plate and the plastic frame, which inevitably causes the light guide plate and the plastic frame. There is an assembly gap between them, which further increases the overall thickness of the liquid crystal display device.
  • the existing backlight module requires many components and has a complicated structure, which increases manufacturing cost and assembly process, and has low assembly efficiency, which is disadvantageous for mass production.
  • the present invention provides a display device with high assembly efficiency, simple structure and small overall width, and a backlight module thereof.
  • a backlight module includes a light guide plate, an optical film set disposed on a surface of the light guide plate, and a light shielding tape, wherein the light guide plate includes a light guide plate body and a non-light-incident end surface of the light guide plate body And a light-shielding tape attached to a portion of the upper surface of the optical film set and extending to cover the reinforcing member.
  • the lower surface of the light guide plate is further provided with a reflective sheet.
  • the light shielding tape extends to a portion of the lower surface of the reflective sheet.
  • the lower surface of the light guide plate is coated with a layer of reflective material.
  • the optical film group and the light guide plate have the same width.
  • the reinforcing member is a metal frame structure.
  • the reinforcing member comprises two bent portions respectively abutting the upper surface and the lower surface of the light guide plate body, and the two bent portions are respectively flat with the upper surface and the lower surface of the light guide plate body Qi.
  • the reinforcing member is integrally injection molded with the light guide plate body.
  • Another object of the present invention is to provide a display device including a display panel and the above-described backlight module, and the display panel is disposed on an upper surface of the backlight module.
  • the backlight module and the display device of the present invention cancel the back plate and the plastic frame structure, and the reinforcing member is disposed on the non-light-in side of the light guide plate, thereby ensuring the structural strength of the product and simplifying the product structure and saving
  • the design cost increases the assembly efficiency of the product and the width of the product is further reduced.
  • FIG. 1 is a cross-sectional structural diagram of a backlight module according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional structural view of a display device according to an embodiment of the present invention.
  • a backlight module of the present invention includes a light guide plate 10 , an optical film set 20 disposed on an upper surface of the light guide plate 10 , and a light shielding tape 30 .
  • the light guide plate 10 includes a light guide plate body 10 a and a light guide plate body 10 a .
  • the reinforcing member 10b of the non-light-incident end surface, the light-shielding tape 30 is attached to a part of the upper surface of the optical film group 20 and extends to cover the reinforcing member 10b.
  • the reinforcing member 10b of this embodiment is a frame structure and is made of a metal material. Specifically, both ends of the reinforcing member 10b are bent at 90° in the same direction to form a bent portion 101, and the reinforcing member 10b is wrapped around the non-light-incident end surface of the light guide plate body 10a, and at the same time, the two bent portions 101 are respectively wrapped around the guide. Upper surface of the light plate body 10a The surface and the lower surface are flush with the upper surface and the lower surface of the light guide plate body 10a, respectively, and the corresponding partial structure of the non-light-in side of the light guide plate 10 is well protected.
  • the reinforcing member 10b and the light guide plate body 10a are processed by an integral injection molding process.
  • the presence of the reinforcing member 10b enhances the strength of the end portion of the light guide plate 10, and the light guide plate 10 is well protected. At the same time, the light projected onto the non-light-emitting surface can be reflected back into the light guide plate body 10a, thereby reducing At the same time of light pollution, the light utilization rate is further improved.
  • the lower surface of the light guide plate 10 is further provided with a reflection sheet 40, which can prevent light from being emitted from the lower surface of the light guide plate body 10a, reflect light irradiated onto the upper surface of the reflection sheet 40, improve light uniformity of the backlight module, and improve light utilization efficiency.
  • the reflection sheet 40 can be made of a mirror silver or a polished oxidized mirror aluminum material having a high reflectance. It can be understood that in other embodiments, the reflective sheet 40 can also be replaced by a layer of reflective material coated on the lower surface of the light guide plate 10, which can reduce the components and achieve the same technical effect.
  • the optical film group 20 is specifically a three-layer composite structure, including an upper brightness enhancement sheet 21, a lower brightness enhancement sheet 22, and a diffusion sheet 23, and the three are stacked on the upper surface of the light guide plate 10 from top to bottom in order to facilitate assembly and paste of the light shielding tape. 30.
  • the optical film group 20 and the light guide plate 10 have substantially the same width.
  • a light source (not shown) of the backlight module is disposed on the light incident side of the light guide plate 10, specifically, a plurality of LED (Light-Emitting Diode) light sources are uniformly printed on the LED substrate to form a light bar, and at the same time, the light guide plate A light groove (not shown) for inserting the light bar is disposed on the end surface of the light guide plate body 10a adjacent to the light incident side, and the light bar can be assembled on the light guide plate 10.
  • LED Light-Emitting Diode
  • the light-shielding tape 30 of the present embodiment is a double-sided tape, one end of which is attached to a partial region of the upper surface of the optical film group 20, and the other end of which is attached to a lower surface of the reflective sheet 40, and is bonded to the optical film group 20 and the guide.
  • the light plate 10 and the side of the reflection sheet 40 are bonded to the optical film group 20 and the guide.
  • the present invention further provides a display device including a display panel 50 and the backlight module, wherein the display panel 50 is disposed on an upper surface of the backlight module.
  • the periphery of the display panel 50 is fixed to the backlight module by the light-shielding tape 30, and the display panel 50 is specifically attached to the upper surface of the upper brightness enhancement sheet 21.
  • the backlight module and the display device of the embodiment of the present invention have no back plate and plastic frame structure, and the reinforcing member 10b is disposed on the non-light-in side of the light guide plate, and the optical film group 20 and the light guide plate 10 are pasted by the light-shielding tape. Together, it ensures the structural strength of the product while simplifying the product structure, saving design costs, improving the assembly efficiency of the product, and further reducing the width of the product.

Abstract

一种背光模组及具有该背光模组的显示装置，包括导光板 （10 ） 、设于导光板 （10 ） 上表面的光学膜片组 （20 ） 以及遮光胶带 （30 ） ，所述导光板 （10 ） 包括导光板本体 （10a ） 和设于所述导光板本体 （10a ） 的非入光侧端面的加强件 （10b ） ，所述遮光胶带 （30 ） 粘贴于所述光学膜片组 （20 ） 的部分上表面并延伸至覆盖所述加强件 （10b ） 。该背光模组和显示装置取消了背板和胶框结构，在导光板的非入光侧设有加强件，保证了结构强度的同时简化了产品结构，节约了设计成本，提高了产品的组装效率，进一步减小了产品的宽度。

Description

显示装置及其背光模组 技术领域
本发明涉及显示技术领域，尤其涉及一种显示装置及其背光模组。
背景技术
随着LCD(Liquid Crystal Display)面板的迅速发展，LCD显示器以其超薄、重量轻、无辐射、性能稳定等诸多优势逐渐成为显示技术的主流。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)，其中显示面板通过背光模组的边框安装和保护。
随着液晶显示技术的发展与普及，液晶显示面板的窄边框化已成市场主流。为减小显示面板的整体宽度，背光模组通常包括：导光板、设置于导光板周围的胶框、柔性电路板、光学膜片以及遮光胶带，柔性电路板通过遮光胶带固定在导光板和胶框上，同时，光学膜片通过遮光胶带固定在胶框上。此种常用的背光模组由于胶框自身存在一定的厚度，这必然会增加背光模组的厚度；并且导光板与胶框在组装过程中存在误差，不可避免的会使该导光板与胶框之间存在组装间隙，进一步增加了液晶显示装置的整体厚度。同时，现有的背光模组需要的元件较多，结构复杂，增加了制造成本和组装工序，组装效率较低，不利于批量生产。
发明内容
鉴于现有技术存在的不足，本发明提供了一种组装效率高、结构简单整体宽度小的显示装置及其背光模组。
为了实现上述的目的，本发明采用了如下的技术方案：
一种背光模组，包括导光板、设于所述导光板上表面的光学膜片组以及遮光胶带，所述导光板包括导光板本体和设于所述导光板本体的非入光侧端面的加强件，所述遮光胶带粘贴于所述光学膜片组的部分上表面并延伸至覆盖所述加强件。
其中，所述导光板的下表面还设置有反射片。
其中，所述遮光胶带延伸至粘贴在所述反射片的部分下表面。
其中，所述导光板的下表面涂覆有一层反光材料。
其中，所述光学膜片组与所述导光板的宽度相同。
其中，所述加强件为金属框体结构。
其中，所述加强件包括分别紧贴于所述导光板本体的上表面和下表面的两个弯折部，两个所述弯折部分别与所述导光板本体的上表面和下表面平齐。
其中，所述加强件与所述导光板本体一体注塑成型。
本发明的另一目的在于提供一种显示装置，包括显示面板和上述的背光模组，所述显示面板设于所述背光模组的上表面。
相比现有技术，本发明的背光模组和显示装置取消了背板和胶框结构，在导光板的非入光侧设有加强件，保证了产品结构强度的同时简化了产品结构，节约了设计成本，提高了产品的组装效率，产品的宽度也进一步减小。
附图说明
图1为本发明实施例的背光模组的剖面结构示意图。
图2为本发明实施例的显示装置的剖面结构示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
参阅图1，本发明的背光模组包括导光板10、设于导光板10上表面的光学膜片组20以及遮光胶带30，其中，导光板10包括导光板本体10a和设于导光板本体10a的非入光侧端面的加强件10b，遮光胶带30粘贴于光学膜片组20的部分上表面并延伸至覆盖加强件10b。
本实施例的加强件10b为框体结构，选用金属材料制成。具体地，加强件10b的两端朝同一方向90°折弯形成弯折部101，加强件10b包裹在导光板本体10a的非入光侧端面，同时，两个弯折部101分别包裹在导光板本体10a的上表 面和下表面，且分别与导光板本体10a的上表面和下表面平齐，很好地保护了导光板10非入光侧的相应部分结构。加强件10b与导光板本体10a通过一体注塑成型工艺加工而成。加强件10b的存在，增强了导光板10端部的强度，很好地保护了导光板10，同时，还可起到将投射至非出光面的光线反射回导光板本体10a内的作用，降低光污染的同时，进一步提高了光线利用率。
导光板10的下表面还设置有反射片40，可以防止导光板本体10a下表面的光线射出，对照射至反射片40上表面的光线进行反射，提高背光模组出光均匀性并提高光线利用率。反射片40可以采用反射率高的镜面银或抛光氧化镜面铝材料制成。可以理解的是，在其它实施方式中，该反射片40也可以由导光板10的下表面涂覆的一层反光材料替代，减少了零部件的同时也可以实现同样的技术效果。
光学膜片组20具体为三层复合结构，包括上增光片21、下增光片22和扩散片23，三者自上而下依次堆叠在导光板10的上表面，为便于组装及粘贴遮光胶带30，光学膜片组20与导光板10的宽度基本相同。
背光模组的光源(图未示)设在导光板10的入光侧，具体地，通过将多颗LED(Light-Emitting Diode)光源均匀打件在LED基板上形成灯条，同时在导光板10的导光板本体10a靠近入光侧的端面开设有供该灯条嵌入的凹槽(图未示)，灯条即可组装在导光板10上。
本实施例的遮光胶带30为双面胶带，其一端粘贴在光学膜片组20的上表面的部分区域，另一端粘贴在反射片40的部分下表面，中间粘贴在光学膜片组20、导光板10和和反射片40的侧面。
如图2，本发明还提供了一种显示装置，包括显示面板50和该背光模组，其中，显示面板50设置于背光模组的上表面。显示面板50的四周通过遮光胶带30与背光模组进行固定，显示面板50具体粘贴在上增光片21上表面。
本发明实施例的背光模组和显示装置没有了背板和胶框结构，在导光板的非入光侧设有加强件10b，同时，利用遮光胶带将光学膜片组20和导光板10粘贴在一起，保证了产品结构强度的同时简化了产品结构，节约了设计成本，提高了产品的组装效率，产品的宽度也进一步减小。
以上所述仅是本申请的具体实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰， 这些改进和润饰也应视为本申请的保护范围。

Claims (20)

  1. 一种背光模组，其中，包括导光板、设于所述导光板上表面的光学膜片组以及遮光胶带，所述导光板包括导光板本体和设于所述导光板本体的非入光侧端面的加强件，所述遮光胶带粘贴于所述光学膜片组的部分上表面并延伸至覆盖所述加强件。
  2. 根据权利要求1所述的背光模组，其中，所述导光板的下表面还设置有反射片。
  3. 根据权利要求2所述的背光模组，其中，所述遮光胶带延伸至粘贴在所述反射片的部分下表面。
  4. 根据权利要求1所述的背光模组，其中，所述导光板的下表面涂覆有一层反光材料。
  5. 根据权利要求1所述的背光模组，其中，所述光学膜片组与所述导光板的宽度相同。
  6. 根据权利要求1所述的背光模组，其中，所述加强件为金属框体结构。
  7. 根据权利要求1所述的背光模组，其中，所述加强件包括分别紧贴于所述导光板本体的上表面和下表面的两个弯折部，两个所述弯折部分别与所述导光板本体的上表面和下表面平齐。
  8. 根据权利要求7所述的背光模组，其中，所述加强件与所述导光板本体一体注塑成型。
  9. 根据权利要求3所述的背光模组，其中，所述加强件包括分别紧贴于所述导光板本体的上表面和下表面的两个弯折部，两个所述弯折部分别与所述导光板本体的上表面和下表面平齐。
  10. 根据权利要求9所述的背光模组，其中，所述加强件与所述导光板本体一体注塑成型。
  11. 根据权利要求5所述的背光模组，其中，所述加强件包括分别紧贴于所述导光板本体的上表面和下表面的两个弯折部，两个所述弯折部分别与所述导光板本体的上表面和下表面平齐。
  12. 根据权利要求11所述的背光模组，其中，所述加强件与所述导光板本 体一体注塑成型。
  13. 一种显示装置，其中，包括显示面板和背光模组，所述背光模组包括导光板、设于所述导光板上表面的光学膜片组以及遮光胶带，所述导光板包括导光板本体和设于所述导光板本体的非入光侧端面的加强件，所述遮光胶带粘贴于所述光学膜片组的部分上表面并延伸至覆盖所述加强件；所述显示面板设于所述背光模组的上表面。
  14. 根据权利要求13所述的背光模组，其中，所述导光板的下表面还设置有反射片，所述遮光胶带延伸至粘贴在所述反射片的部分下表面。
  15. 根据权利要求13所述的背光模组，其中，所述导光板的下表面涂覆有一层反光材料。
  16. 根据权利要求13所述的背光模组，其中，所述光学膜片组与所述导光板的宽度相同。
  17. 根据权利要求13所述的背光模组，其中，所述加强件为金属框体结构。
  18. 根据权利要求13所述的背光模组，其中，所述加强件包括分别紧贴于所述导光板本体的上表面和下表面的两个弯折部，两个所述弯折部分别与所述导光板本体的上表面和下表面平齐。
  19. 根据权利要求18所述的背光模组，其中，所述加强件与所述导光板本体一体注塑成型。
  20. 根据权利要求14所述的背光模组，其中，所述加强件包括分别紧贴于所述导光板本体的上表面和下表面的两个弯折部，两个所述弯折部分别与所述导光板本体的上表面和下表面平齐。
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