WO2017084423A1 - 背光模组后盖、背光模组和显示模组 - Google Patents

背光模组后盖、背光模组和显示模组 Download PDF

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Publication number
WO2017084423A1
WO2017084423A1 PCT/CN2016/098784 CN2016098784W WO2017084423A1 WO 2017084423 A1 WO2017084423 A1 WO 2017084423A1 CN 2016098784 W CN2016098784 W CN 2016098784W WO 2017084423 A1 WO2017084423 A1 WO 2017084423A1
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WIPO (PCT)
Prior art keywords
backlight module
back cover
backlight
protrusion
bottom 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
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PCT/CN2016/098784
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English (en)
French (fr)
Inventor
余亚军
曹谦
苏文华
姚键
潘柏宇
王冀
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.)
Heyi Intelligent Technology (shenzhen) Co Ltd
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Heyi Intelligent Technology (shenzhen) 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.)
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Priority to US15/573,946 priority Critical patent/US20180292603A1/en
Publication of WO2017084423A1 publication Critical patent/WO2017084423A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F21V15/015—Devices for covering joints between adjacent lighting devices; End coverings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements

Definitions

  • the present invention relates to the field of displays, and in particular, to a backlight module back cover, a backlight module, and a display module.
  • the backlight module includes: a front frame, a display panel, an optical component, a plastic middle frame, a metal back plate, a PCB (Printed Circuit Board) cover, and the like.
  • the optical member may include an LGP (Light Guide Plate) and a reflective sheet.
  • the disadvantages of the conventional backlight module or display module are that the module has many components, the supply chain and the control are laborious; the module has too much material, and the manufacturing process is expensive; the material is too much, and the assembly is basically manual, time-consuming, manual and manual. The material cost is high.
  • the technical problem to be solved by the present invention is to provide a simplified back cover of a backlight module.
  • the back cover With the back cover, the backlight module or the display module can be conveniently assembled.
  • the present invention provides a back cover of a backlight module, including a bottom plate and a side plate, and the side plate and the bottom plate constitute a receiving cavity.
  • An inner surface of the side plate is provided with a protrusion protruding toward an inner portion of the accommodating cavity, and a cavity portion is formed between the protrusion and the bottom plate, the cavity portion is for accommodating a backlight source and is used for Fix the light guide.
  • a groove for accommodating the electrical connection terminal of the backlight source is disposed on the bottom plate adjacent to the cavity portion.
  • a plurality of diaphragm mounting ears are disposed on the protrusions, so that an optical film located above the light guide plate can be sleeved on the film. The piece is hung on the ear.
  • the two inner surfaces of the side plates are oppositely disposed with the protrusions.
  • the inner surface of the side panel that is not provided with the protrusion is formed with a step structure, and the upper surface of the step structure is at the upper surface of the protrusion In the same plane, the upper surface of the step structure supports and fixes the display panel together with the upper surface of the protrusion.
  • the side panel is disposed to extend in a direction substantially perpendicular to an upper surface of the bottom plate, and the protrusion is disposed to face the side panel.
  • the inner surface extends in a substantially parallel direction.
  • the back cover is formed of a plastic material.
  • the back cover is integrally formed.
  • the present invention further provides a backlight module, which is assembled by sequentially assembling a back cover, a reflection sheet, a backlight source, a light guide plate and an optical film, and the back cover adopts any one of the embodiments of the present invention.
  • the backlight module back cover of the structure is assembled by sequentially assembling a back cover, a reflection sheet, a backlight source, a light guide plate and an optical film, and the back cover adopts any one of the embodiments of the present invention.
  • the present invention further provides a display module, including a backlight module and a display panel, wherein the backlight module adopts a backlight module of any structure in the embodiment of the present invention, and the display panel is covered by Above the optical film of the backlight module, and the display panel is fixedly connected to the protrusion on the side plate of the back cover of the backlight module.
  • the back panel, the plastic middle frame, and the front frame of the display module of a conventional television or the like can be integrated.
  • the key materials of the module or the display module can be greatly reduced, thereby reducing the supply chain, and saving more material costs, and integrating multiple key materials, resulting in lower cost, the simplified design
  • the back cover structure can save more assembly workers and save man-hours, and can also eliminate the poor matching between materials, make the assembly precision higher, and the yield of the whole production is greatly improved.
  • FIG. 1 is a schematic structural view of a conventional display module
  • FIG. 2 is a schematic overall view of a back cover of a backlight module according to an embodiment of the invention.
  • FIG. 3 and FIG. 4 are partially enlarged schematic views showing a back cover of a backlight module according to an embodiment of the invention.
  • FIG. 5 and FIG. 6 are schematic diagrams showing the assembly of a back cover of a backlight module according to an embodiment of the present invention.
  • FIG. 7 is a schematic view showing a groove provided in a back cover of a backlight module according to another embodiment of the present invention.
  • FIG. 8 and FIG. 9 are schematic diagrams showing a diaphragm mounting ear in a back cover of a backlight module according to another embodiment of the present invention.
  • FIG. 10 is a block diagram showing the structure of a display module according to an embodiment of the invention.
  • the backlight module back cover 1 can mainly include a bottom plate 2 and a side plate 3.
  • the side plate 3 may be disposed at the periphery of the bottom plate 2 and extend in a direction substantially perpendicular to the upper surface of the bottom plate 2, such that the bottom plate 2 and the side plate 3 may surround the receiving cavity 11.
  • the inner surface of the side plate 3 is provided with a projection 4 that protrudes toward the inside of the accommodating cavity 11, and the projection 4 may extend in a direction substantially parallel to the inner surface of the side plate 3, Make The protruding portion 4 protrudes into the inside of the accommodating cavity 11.
  • a cavity portion 5 is formed between the protrusion portion 4 and the bottom plate 2, and a backlight source 6 can be disposed in the cavity portion 5, and the cavity portion 5 can also be used to fix the light guide plate 7.
  • the protrusions 4 may be disposed on the opposite inner surfaces of the side plates 3, so that when the light guide plate 7 is mounted, the light guide plate 7 can be inserted into the light guide plate 7 by the bendability of the light guide plate 7
  • the light guide plate 7 is fixed in the cavity portion 5 below the protrusion 4.
  • the backlight source 6 preferably uses a light bar made of an LED (Light Emitting Diode).
  • LED Light Emitting Diode
  • the backlight source 6 includes, but is not limited to, a flat fluorescent lamp, a bulb, a light bar made of LED, a linear light source made of a cold cathode fluorescent tube, and a strip-shaped EL (electroluminescent device).
  • OELD Organic Electroluminescent Diodes
  • Any illumination device capable of functioning as the backlight source 6 of the backlight module can be applied to the present invention.
  • the backlight source 6 of the present invention may also be composed of various combinations of the above-described light sources.
  • the back cover 1 is exemplified by a rectangular structure, the rectangular back cover has four side plates 3 and a bottom plate 2, and a backlight portion 5 formed in one of the side plates 3 and the bottom plate 2 can accommodate a backlight source. 6.
  • the backlight source 6 and the light guide plate 7 may be on the same side.
  • the side on which the backlight source 6 is housed is the light incident side, and the light guide plate 7 may be fixed in the cavity portion 5 formed by the side plate 3 and the bottom plate 2 on the side opposite to the light incident side.
  • the cavity portion 5 has a function of pressing and holding pressure on the light guide plate 7, and at least one side of the light guide plate 7 can be engaged in the cavity portion 5 to prevent the light guide plate 7 from being lifted up.
  • a reflection sheet 71 is attached between the lower surface of the light guide plate 7 and the upper surface of the bottom plate 2.
  • the size of the reflection sheet 71 can be set according to the size of the light exit area.
  • the backlight source 6 is disposed in the cavity portion 5 formed by one of the four side plates of the back cover 1 and the bottom plate, those skilled in the art can understand that the backlight source 6 can also be disposed on the back cover 1 Two, three or all of the four side panels are formed in the cavity portion 5 formed by the bottom plate.
  • the backlight source 6 can occupy the back cover
  • the concave portion 5 formed by one of the side plates 3 and the bottom plate 2 may also occupy the concave portion 5 formed by the plurality of side plates and the bottom plate of the rear cover 1, or may occupy only one or more sides of the rear cover 1.
  • the back cover 1 is formed of a plastic material.
  • the back cover 1 can be formed of cast aluminum or cast magnesium, which has the advantages of high strength and light weight.
  • the material of the back cover 1 of the present invention is not limited thereto, and the material of the back cover 1 of the present invention may include, but is not limited to, a metal material such as an aluminum alloy, a cast aluminum, a cast magnesium, and the like, and includes but is not limited to a polymer material such as a plastic resin.
  • the respective components of the back cover 1 can be integrally formed by an integral molding process.
  • the integral molding process may include, but is not limited to, stamping, molding, integral casting, injection molding, hot pressing and the like according to different materials.
  • the back cover 1 of the present invention may also be manufactured separately according to the design, and various components such as the bottom plate 2, the side plates 3, the protrusions 4, and the like may be used as needed, including but not limited to bonding, welding, riveting, and splicing. Connect by other means.
  • the back cover of the backlight module of the embodiment has a simple structure.
  • the front cover and the middle frame can be omitted when assembling the backlight module or the display module, and the backlight module or the display module can be lightened.
  • the weight and ease of manual assembly can reduce the labor and material costs of the product.
  • FIG. 7 is a schematic view showing a groove provided in a back cover of a backlight module according to another embodiment of the present invention.
  • This embodiment has all the technical features of Embodiment 1, and on the basis of Embodiment 1, the structure of the back cover 1 is further changed, and new components are added.
  • the same reference numerals in Fig. 7 as those in Figs. 2 to 6 denote the same components, and a detailed description of these components will be omitted for the sake of brevity.
  • a groove 8 for accommodating the electrical connection terminal 9 of the backlight source 6 may be provided, and the number of the grooves 8 One or more may be used, and all of the terminals may be placed in one of the grooves 8, or the grooves 8 may be provided for the plurality of terminals.
  • the electrical connection terminal 9 can be connected to an external power source (not shown) as a backlight source 6 powered by.
  • the power supply wiring (not shown) of the backlight source 6 is usually thin, in the present embodiment, about 0.1 mm, and the power supply wiring can be attached to the inner side surface of the rear cover 1. In this way, the power wiring of the entire backlight module or the display module is more beautiful and safer.
  • a plurality of diaphragm mounting ears 10 may be disposed on the protrusions 4 for positioning and fixing the optical film 13 so as to be located above the light guiding plate 7.
  • the optical film 13 can be sleeved on the diaphragm mounting ear 10.
  • a groove can be formed in the projection 4, and a convex diaphragm hanger 10 can be provided in the groove.
  • the depth of the groove can be determined according to the thickness of the optical film 13, and it is preferable that the optical film 13 is just attached to the upper surface of the light guide plate 7 when the optical film 13 is sleeved on the film hanger 10.
  • the structure of the diaphragm hanger 10 in FIGS. 8 and 9 is merely an example, and instead of notching the projection 4, a protruding diaphragm lug 10 is provided on the second step side 42 of the projection 4. Or, another structure is used to realize the connection of the optical film 13 to the protrusion 4.
  • the back cover of the backlight module of the embodiment has a simple structure.
  • the front cover and the middle frame can be omitted when assembling the backlight module or the display module, and the backlight module or the display module can be lightened.
  • the weight and ease of manual assembly can reduce the labor and material costs of the product.
  • the structure of the backlight module can be made more compact, which is advantageous for assembling a lighter and thinner backlight module or display module.
  • This embodiment provides a backlight module using the back cover 1 described in the foregoing embodiments.
  • the backlight module in the present embodiment is assembled by sequentially assembling the back cover 1 , the reflection sheet 71 , the backlight source 6 , the light guide plate 7 , and the optical film 13 .
  • the back cover 1 can adopt the back cover 1 of any of the foregoing embodiments.
  • the reflective sheet 71 is disposed above the bottom plate 2 of the back cover 1
  • the backlight portion 5 of the back cover 1 houses the backlight source 6 .
  • the position of the backlight source 6 is Above the position of the reflection sheet 71, the light guide plate 7 is disposed above the reflection sheet 71 and the backlight source 6. At least one side of the light guide plate 7 is engaged in the cavity portion 5, Above the light guide plate
  • the optical film 13 is connected to the protrusion 4 of the back cover 1.
  • the reflective sheet, the backlight source, the light guide plate and the optical film can be sequentially assembled to obtain a backlight module, and the backlight module is easy to assemble due to the simple structure of the back cover.
  • the front frame and the middle frame are eliminated, which helps to reduce the weight of the backlight module, and can improve production efficiency and reduce cost.
  • FIG. 10 is a schematic structural diagram of a display module according to an embodiment of the present invention.
  • the display module may include a backlight module and a display panel 12 , wherein the backlight module of the embodiment may adopt an embodiment. 3 backlight module.
  • the display panel is overlaid on the optical film 13 of the backlight module, and the display panel 12 is fixedly connected to the protrusion 4 on the side plate 3 of the back cover of the backlight module.
  • the protrusion 4 of the back cover 1 is substantially rectangular, and the inner surface of the side plate 3 where the protrusion 4 is not provided is formed with a stepped structure, the upper surface of the step structure and the protrusion
  • the upper surfaces of the portions are in the same plane, such that the inner surface of the side plates 3, the upper surface of the stepped structure and the upper surface of the protrusions can function to position and limit the display panel 12.
  • an adhesive may be applied to the inner surface of the side plate 3, the upper surface of the step structure, and the upper surface of the protrusion 4, and the display panel 12 is overlaid on the optical film 13 of the backlight module. Further, the display panel 12 is adhered to the inner surface of the side plate 3, the upper surface of the step structure, and the upper surface of the protrusion 4 by an adhesive, so that the display panel 12 is fixedly coupled to the side plate 3 of the backlight module.
  • the upper surface of the side panel 3 may be a curved surface, such that smooth transition from the edge of the display panel 12 to the side panel 3 may be achieved.
  • the upper surface of the side panel 3 may also be a flat surface.
  • the side plate 3 corresponds to a three-step structure in which the first step front surface 31 is located on the upper surface of the side plate 3, and the first step side surface 32 is located in the upper portion of the side plate 3.
  • the surface, the second step front surface 41 is coplanar with the upper surface of the protrusion 4 (the upper surface of the protrusion 4 can be regarded as one of the second step front faces 41)
  • the second step side surface 42 extends vertically downward from the second step front surface 41 to the bottom surface or the lower surface of the protrusion portion 4, and the bottom surface corresponds to the third step front surface.
  • the display panel 12 can be attached to the first step side surface 32 and the second step front surface 41.
  • the display module assembled by using the backlight module and the display panel of the third embodiment has a simple structure of the back cover, so that the display module is easy to assemble, and the front frame and the middle frame are unnecessary, which is beneficial to reducing the display module.
  • Weight can increase production efficiency and reduce costs.

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  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Planar Illumination Modules (AREA)

Abstract

一种背光模组后盖（1）、背光模组和显示模组。其中，该背光模组包括后盖（1），所述后盖（1）包括底板（2）和侧板（3），所述侧板（3）和所述底板（2）构成容纳腔体（11），所述侧板（3）的内表面设有朝向所述容纳腔体（11）的内部突出的突起部（4），所述突起部（4）与所述底板（2）之间形成有凹腔部（5），所述凹腔部（5）用于容纳背光光源（6）并用于固定导光板（7）。所述背光模组可以将传统电视等的显示模组的背板、塑胶中框、前框合为一体。大幅度减少模组或显示模组的关键物料，缩减供应链，而且可以节省较多的材料成本，多个关键物料合为一体，使得成本更低，该简化设计的后盖（1）结构，可以节省较多的组装工人力，节省工时，而且还可以消除物料之间的匹配性不良，使组装精度更高、整个生产的良品率得到大大提高。

Description

背光模组后盖、背光模组和显示模组
交叉引用
本申请主张2015年11月19日提交的中国专利申请号为201510812786.1的优先权，其全部内容通过引用包含于此。
技术领域
本发明涉及显示器领域，尤其涉及一种背光模组后盖、背光模组和显示模组。
背景技术
传统背光模组或显示模组的结构非常复杂。如图1所示，背光模组包括：前框、显示面板、光学部材、塑胶中框、金属背板、PCB(Printed Circuit Board，印刷电路板)盖子等。其中，光学部材可以包括LGP(Light Guide Plate，导光片)和反射片。上述的每个部件需要人工一件一件的组装到一起，比如前框和背板都需要螺丝锁到一起。
因此，传统背光模组或显示模组的缺点是模组的组件特别多，供应链及管控费劲；模组物料太多，制造加工成本昂贵；物料太多，基本靠人工组装，费时，人工和材料成本高。
发明内容
技术问题
有鉴于此，本发明要解决的技术问题是，提供一种简化的背光模组后盖，采用这种后盖，能够方便地组装背光模组或显示模组。
解决方案
为了解决上述技术问题，本发明提供一种背光模组后盖，包括底板和侧板，所述侧板和所述底板构成容纳腔体，
所述侧板的内表面设有朝向所述容纳腔体的内部突出的突起部，所述突起部与所述底板之间形成有凹腔部，所述凹腔部用于容纳背光光源并用于固定导光板。
对于上述背光模组后盖，在一种可能的实现方式中，在靠近所述凹腔部的所述底板上设置有用来容纳所述背光光源的电连接端子的凹槽。
对于上述背光模组后盖，在一种可能的实现方式中，在所述突起部上设置多个膜片挂耳，以使得位于所述导光板上方的光学膜片能够套接在所述膜片挂耳上。
对于上述背光模组后盖，在一种可能的实现方式中，所述侧板的位置相对的两个内表面设有所述突起部。
对于上述背光模组后盖，在一种可能的实现方式中，侧板的未设置所述突起部的内表面形成有台阶结构，所述台阶结构的上表面与所述突起部的上表面处于同一平面，所述台阶结构的上表面与所述突起部的上表面共同支承并固定显示面板。
对于上述背光模组后盖，在一种可能的实现方式中，所述侧板设置为朝向与所述底板的上表面大致垂直的方向延伸，所述突起部设置为朝向与所述侧板的内表面大致平行的方向延伸。
对于上述背光模组后盖，在一种可能的实现方式中，所述后盖由可塑性材料形成。
对于上述背光模组后盖，在一种可能的实现方式中，所述后盖一体成型。
为了解决上述技术问题，本发明还提供一种背光模组，由后盖、反射片、背光光源、导光板和光学膜片依次组装而成，所述后盖采用本发明实施例中任意一种结构的背光模组后盖。
为了解决上述技术问题，本发明还提供一种显示模组，包括背光模组和显示面板，所述背光模组采用本发明实施例中任意一种结构的背光模组，所述显示面板覆盖在所述背光模组的光学膜片的上方，并且，所述显示面板与所述背光模组后盖的侧板上的突起部固定连接。
有益效果
通过本发明，可以将传统电视等的显示模组的背板、塑胶中框、前框合为一体。由此，可以大幅度减少模组或显示模组的关键物料，由此可缩减供应链，而且可以节省较多的材料成本，多个关键物料合为一体，使得成本更低，该简化设计的后盖结构，可以节省较多的组装工人力，节省工时，而且还可以消除物料之间的匹配性不良，使组装精度更高、整个生产的良品率得到大大提高。
根据下面参考附图对示例性实施例的详细说明，本发明的其它特征及方面将变得清楚。
附图说明
包含在说明书中并且构成说明书的一部分的附图与说明书一起示出了本发明的示例性实施例、特征和方面，并且用于解释本发明的原理。
图1示出传统显示模组的结构示意图；
图2示出根据本发明一实施例的背光模组后盖的整体示意图；
图3和图4示出根据本发明一实施例的背光模组后盖的局部放大示意图；
图5和图6示出采用本发明一实施例的背光模组后盖进行组装示意图；
图7示出根据本发明另一实施例的背光模组后盖中设置凹槽的示意图；
图8和图9示出根据本发明另一实施例的背光模组后盖中设置膜片挂耳的示意图；
图10示出根据本发明实施例的显示模组的结构示意图。
附图标记列表
1：后盖；             2：底板；              3：侧板；
4：突起部；           5：凹腔部；            6：背光光源；
8：凹槽；             9：电连接端子；        10：膜片挂耳；
11：容纳腔体；        13：光学膜片；         31：第一台阶正面；
32：第一台阶侧面；    41：第二台阶正面；     42：第二台阶侧面；
7：导光板；           71：反射板。
具体实施方式
以下将参考附图详细说明本发明的各种示例性实施例、特征和方面。附图中相同的附图标记表示功能相同或相似的元件。尽管在附图中示出了实施例的各种方面，但是除非特别指出，不必按比例绘制附图。
在这里专用的词“示例性”意为“用作例子、实施例或说明性”。这里作为“示例性”所说明的任何实施例不必解释为优于或好于其它实施例。
另外，为了更好的说明本发明，在下文的具体实施方式中给出了众多的具体细节。本领域技术人员应当理解，没有某些具体细节，本发明同样可以实施。在一些实例中，对于本领域技术人员熟知的方法、手段、元件和电路未作详细描述，以便于凸显本发明的主旨。
实施例1
图2示出根据本发明一实施例的背光模组后盖的整体示意图。如图2所示，该背光模组后盖1主要可以包括底板2和侧板3。其中，侧板3可以设置在底板2的周边，并朝向与底板2的上表面大致垂直的方向延伸，这样，底板2和侧板3可以围设构成容纳腔体11。
如图3和图4所示，侧板3的内表面设有朝向所述容纳腔体11的内部突出的突起部4，突起部4可以朝向与侧板3的内表面大致平行的方向延伸，使得 突起部4向容纳腔体11内部突出。
如图5和图6所示，突起部4与底板2之间形成有凹腔部5，在凹腔部5内能够设置背光光源6，该凹腔部5还可以用来固定导光板7。优选地，可以在所述侧板3的位置相对的两个内表面设置所述突起部4，这样在安装导光板7时，可以利用导光板7的可弯曲性能，将导光板7插设到突起部4之下的凹腔部5内，以固定导光板7。当然，也可以在侧板3的三个或四个内表面设置所述突起部，这种情况下，最好将侧板3的一个面设置为可拆卸结构，以方便组装。
在本实施例中，如图7所示，背光光源6优选采用LED(Light Emitting Diode，发光二极管)制成的灯条。本领域技术人员可以理解，所述背光光源6包括但不限于扁平荧光灯、灯泡、LED制成的灯条、冷阴极荧光管制成的线状光源、条状的EL(electroluminescent，电致发光器件)、OELD(Organic Electroluminescent Diodes，有机电致发光器件)等。任何能够作为背光模组的背光光源6的照明设备，都可以适用在本发明中。本发明的背光光源6还可以由上述光源的多种组合构成。
在本实施例中，在后盖1的示例为矩形结构，矩形后盖有四个侧板3和一个底板2，在其中一个侧板3与底板2形成的凹腔部5内可以容纳背光光源6，如图6所示，背光光源6和导光板7可以在同一侧。此外，以容纳背光光源6的一侧为入光侧，也可以在与入光侧相对侧的侧板3与底板2形成的凹腔部5内，可以固定导光板7。该凹腔部5对导光板7具有按压和藏压的作用，可以将导光板7的至少一侧卡接在所述凹腔部5内，以防止导光板7翘起。如图5和图6所示，通常导光板7的下表面和底板2的上表面之间贴附有反射片71，反射片71的大小可以根据出光区域的大小来设定。虽然在本实施例中，背光光源6设置在后盖1的四个侧板之一与底板形成的凹腔部5内，但是本领域技术人员可以理解，背光光源6也可以设置在后盖1的四个侧板之中的两个、三个或全部侧板与底板形成的凹腔部5内。根据应用的需要，背光光源6可以占满后盖 1的一个侧板3与底板2形成的凹腔部5，也可以占满后盖1的多个侧板与底板形成的凹腔部5，也可以只占后盖1的一个或多个侧板3与底板2形成的凹腔部5的一部分。
优选地，后盖1由可塑性材料形成。在本实施例中，后盖1可以由铸铝或铸镁形成，其具有强度大、重量轻的有益效果。然而，本发明的后盖1的材料不限于此，本发明的后盖1的材料可以包括但不限于铝合金、铸铝、铸镁等金属材料，也包括但不限于可塑性树脂等高分子材料。在本实施例中，后盖1的各个组成部分可以采用一体成型工艺一体制成。其中，一体成型工艺根据材料的不同，可以选择包括但不限于冲压、模压、一体铸造、注塑、热压等加工工艺。
然而，本发明的后盖1也可以根据设计的不同采用分体制造，各个部件例如底板2、侧板3、突起部4等可以根据需要采用包括但不限于粘结、焊接、铆接、榫接等方式连接。
本实施例的背光模组后盖结构简单，通过设置突起部和凹腔部，在组装成背光模组或显示模组时可以省掉前盖和中框，能够减轻背光模组或显示模组的重量，且方便人工装配，可以降低产品的人工和材料成本。
实施例2
图7示出根据本发明另一实施例的背光模组后盖中设置凹槽的示意图。本实施例具有实施例1的全部技术特征，并在实施例1的基础上，对后盖1的结构做了进一步改变，增加了新的组件。图7中与图2至图6相同的标号表示相同的组件，为简明起见，省略对这些组件的详细说明。
在实施例2中，如图7所示，在靠近入光侧的凹腔部5的底板2上，可以设置有用来容纳背光光源6的电连接端子9的凹槽8，凹槽8的数量可以为一个或者多个，可以将所有端子均放置在一个凹槽8内，也可以为多个端子分别设置凹槽8。该电连接端子9可以连接外部电源(图中未示出)，为背光光源6 供电。此外，背光光源6的电源走线(图中未示出)通常很薄，在本实施例中，大约为0.1mm，该电源走线可以贴附在后盖1的内侧表面上。这样整个背光模组或显示模组的电源布线更美观、更安全。
在一种可能的实现方式中，参见图8和图9，在突起部4上可以设置多个膜片挂耳10，用来定位和固定光学膜片13，以使得位于所述导光板7上方的光学膜片13能够套接在所述膜片挂耳10上。在具体实现上，如图7所示，可以在突起部4上开槽，并在槽中设置凸起的膜片挂耳10。槽的深度可以根据光学膜片13的厚度来决定，优选为在将光学膜片13套接在膜片挂耳10上时，能够使得光学膜片13刚好贴附在导光板7的上表面。图8和图9中的膜片挂耳10结构仅是一种示例，也可以不在突起部4上开槽，而是在突起部4的第二台阶侧面42上设置突出的膜片挂耳10，或者采用别的结构来实现光学膜片13与突起部4的连接。
本实施例的背光模组后盖结构简单，通过设置突起部和凹腔部，在组装成背光模组或显示模组时可以省掉前盖和中框，能够减轻背光模组或显示模组的重量，且方便人工装配，可以降低产品的人工和材料成本。此外，通过设置凹槽，可以使得背光模组的结构更为紧凑，有利于组装得到更轻更薄的背光模组或显示模组。
实施例3
本实施例提供了一种利用前述实施例中所述的后盖1的背光模组。具体而言，本实施中的背光模组由后盖1、反射片71、背光光源6、导光板7和光学膜片13依次组装而成。其中，后盖1可以采用前述实施例中任意一种结构的后盖1。其中，参见图6，所述后盖1的底板2的上方设置所述反射片71，所述后盖1的凹腔部5内容纳有所述背光光源6，所述背光光源6的位置在所述反射片71的位置之上，所述反射片71与所述背光光源6的上方设置所述导光板7，所述导光板7的至少一侧卡接在所述凹腔部5内，所述导光板的上方设置 所述光学膜片13，所述光学膜片13与所述后盖1的突起部4连接。
通过采用前述实施例中所述的一体成型的后盖1，可以将反射片、背光光源、导光板和光学膜片依次组装得到背光模组，由于后盖结构简单，使得背光模组易于组装，无需前框和中框，有利于减轻背光模组的重量，能够提高生产效率，降低成本。
实施例4
图10示出根据本发明实施例的显示模组的结构示意图，如图10所示，该显示模组可以包括背光模组和显示面板12，其中，本实施例的背光模组可以采用实施例3所述的背光模组。并且，显示面板覆盖在所述背光模组的光学膜片13的上方，并且，所述显示面板12与所述背光模组后盖的侧板3上的突起部4固定连接。
具体而言，参见图6和图9，后盖1的突起部4大致呈矩形，侧板3的未设置所述突起部4的内表面形成有台阶结构，台阶结构的上表面与所述突起部的上表面处于同一平面，这样，侧板3的内表面、台阶结构的上表面与突起部的上表面可以起到对显示面板12进行定位和限位的作用。在组装时，可以在侧板3的内表面、台阶结构的上表面与突起部4的上表面涂覆粘合剂，将显示面板12覆盖在所述背光模组的光学膜片13的上方，并且，通过粘合剂将显示面板12粘贴在侧板3的内表面、台阶结构的上表面与突起部4的上表面上，使得显示面板12与背光模组的侧板3固定连接。
在一种可能的实现方式中，侧板3的上表面可以为曲面，这样从显示面板12的边缘到侧板3可以实现平滑过度。
在一种可能的实现方式中，侧板3的上表面也可以为平面。这样，如图4至图6所示，侧板3上相当于具有三级台阶结构，其中，第一台阶正面31位于侧板3的上表面，第一台阶侧面32位于侧板3上部的内表面，第二台阶正面41与突起部4的上表面共面(突起部4的上表面可以看做是第二台阶正面41的一 部分)，第二台阶侧面42则从第二台阶正面41垂直向下的延伸到底面或者突起部4的下表面，底面则相当于第三台阶正面。这种情况下，可以将显示面板12粘贴在第一台阶侧面32以及第二台阶正面41上。
利用实施例3所述的背光模组与显示面板组装得到的显示模组，由于所采用的后盖结构简单，使得显示模组易于组装，无需前框和中框，有利于减轻显示模组的重量，能够提高生产效率，降低成本。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (10)

  1. 一种背光模组后盖，包括底板和侧板，其特征在于，所述侧板和所述底板构成容纳腔体，
    所述侧板的内表面设有朝向所述容纳腔体的内部突出的突起部，所述突起部与所述底板之间形成有凹腔部，所述凹腔部用于容纳背光光源并用于固定导光板。
  2. 根据权利要求1所述的背光模组后盖，其特征在于，在靠近所述凹腔部的所述底板上设置有用来容纳所述背光光源的电连接端子的凹槽。
  3. 根据权利要求1或2所述的背光模组后盖，其特征在于，在所述突起部上设置多个膜片挂耳，以使得位于所述导光板上方的光学膜片能够套接在所述膜片挂耳上。
  4. 根据权利要求1-3中任一项所述的背光模组后盖，其特征在于，所述侧板的位置相对的两个内表面设有所述突起部。
  5. 根据权利要求4所述的背光模组后盖，其特征在于，所述侧板的未设置所述突起部的内表面形成有台阶结构，所述台阶结构的上表面与所述突起部的上表面处于同一平面，所述台阶结构的上表面与所述突起部的上表面共同支承并固定显示面板。
  6. 根据权利要求1-5中任一项所述的背光模组后盖，其特征在于，所述侧板设置为朝向与所述底板的上表面大致垂直的方向延伸，所述突起部设置为朝向与所述侧板的内表面大致平行的方向延伸。
  7. 根据权利要求1-6中任一项所述的背光模组后盖，其特征在于，所述后盖由可塑性材料形成。
  8. 根据权利要求1-7中任一项所述的背光模组后盖，其特征在于，所述后盖一体成型。
  9. 一种背光模组，由后盖、反射片、背光光源、导光板和光学膜片依次组装而成，其特征在于，所述后盖采用权利要求1-8中任一项所述的背光 模组后盖。
  10. 一种显示模组，包括背光模组和显示面板，其特征在于，所述背光模组采用权利要求9所述的背光模组，所述显示面板覆盖在所述背光模组的光学膜片的上方，并且，所述显示面板与所述背光模组后盖的侧板上的突起部固定连接。
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