WO2016187900A1 - 背光模组及显示装置 - Google Patents

背光模组及显示装置 Download PDF

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Publication number
WO2016187900A1
WO2016187900A1 PCT/CN2015/081121 CN2015081121W WO2016187900A1 WO 2016187900 A1 WO2016187900 A1 WO 2016187900A1 CN 2015081121 W CN2015081121 W CN 2015081121W WO 2016187900 A1 WO2016187900 A1 WO 2016187900A1
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WO
WIPO (PCT)
Prior art keywords
plate
limiting
light
disposed
light guide
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/CN2015/081121
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English (en)
French (fr)
Inventor
张彦学
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.)
Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US14/785,838 priority Critical patent/US9897853B2/en
Publication of WO2016187900A1 publication Critical patent/WO2016187900A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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
    • 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
    • G02B6/0081—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
    • 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
    • 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

Definitions

  • the present invention relates to the field of liquid crystal display technology, and in particular, to a backlight module and a display device.
  • liquid crystal display devices have been widely used in various electronic products as display components of electronic devices. With the development of thin and light electronic products, display devices of electronic devices are increasingly required.
  • the backlight module is an important component in the liquid crystal display device, and the quality and performance requirements of the backlight module are also higher and higher.
  • the backlight module of the prior art includes a plastic frame, a light guide plate and an optical film.
  • the plastic frame is disposed on a periphery of the light guide plate, and the optical film is fixed on the plastic frame by a light shielding tape.
  • the light guide plate of the backlight module of the structure is carried by a back plate.
  • the light guide plate and the plastic frame have no direct fixing structure, and a fixed structure is needed between the plastic frame and the back plate, which not only affects the assembly of the backlight module.
  • the stability and assembly efficiency also increase the difficulty of assembling the backlight module and affect the performance of the backlight module.
  • the object of the present invention is to provide a backlight module, which ensures the limit between the plastic frame and the light guide plate, and enhances the stability of the assembly of the backlight module.
  • the invention also provides a display device.
  • the present invention provides a backlight module including a plastic frame, a light guide plate and a backlight.
  • the plastic frame includes two opposite side walls and end walls connecting the two side walls, and the end walls are located on two sides.
  • a support plate is disposed on one side of the wall, and a limiting plate is connected between the two side walls.
  • the limiting plate and the carrier plate are respectively located on opposite sides of the light guide plate, and the light guide plate is disposed.
  • the light-receiving surface, the limiting block and the limiting groove, the limiting block and the limiting groove are disposed on two opposite surfaces of the light guide plate, and close to the light guiding
  • the board is provided with one end of the light-incident surface
  • the rubber frame is disposed at a periphery of the light guide plate
  • the backlight is mounted on the carrier board and located on one side of the light-incident surface
  • the limiting slot and the carrier board are
  • the limiting block is located between the end wall and the limiting plate and abuts against the limiting plate to position the light guiding plate on the plastic frame.
  • the end plate is opposite to the carrier plate, and the end surface of the limiting plate facing the end wall is a first end surface, and the end surface of the carrier plate facing the limiting plate is a second end surface.
  • the first end surface is opposite to the second end surface and is located on the same plane.
  • the end wall of the plastic frame is located at an inner surface between the two side walls, and the carrier plate is disposed on one side of the inner surface; the limiting plate is disposed on the two side walls away from the bearing One side of the plate, and the spacer plate and the end wall have a spacing, the width of the spacing being the same as the width of the carrier plate.
  • the light guide plate further includes a light emitting surface and a bottom surface opposite to the light emitting surface, wherein the light incident surface is connected to the light surface and the bottom surface, the limiting block is protruded from the light emitting surface, and the limiting slot is disposed on the light emitting surface.
  • the bottom surface penetrates the bottom surface and the light incident surface.
  • the backlight includes a light source circuit board and a light emitting member disposed on the light source circuit board, the light source circuit board is located between the limiting block and the end wall, and the light emitting member is opposite to the light incident surface Settings.
  • the end wall, the limiting block and the limiting plate are fixed by double-sided tape.
  • the projection of the limiting plate on the plane of the carrier board partially overlaps or completely overlaps the carrier plate.
  • the backlight module further includes an optical film, the optical film is mounted on the light emitting surface of the light guide plate, and an end of the optical film is sandwiched by the light guide plate and the limiting plate.
  • the present invention provides a display device including the backlight module and a liquid crystal panel mounted on the backlight module.
  • the backlight module further includes an optical film, the optical film is mounted on the light guide plate, and an end of the optical film is sandwiched by the light guide plate and the limiting plate, the liquid crystal The panel is disposed on the backlight module opposite to the optical film.
  • the backlight film set of the present invention is provided with a parallel and misaligned oppositely disposed carrier plate and a limiting plate on the plastic frame, correspondingly setting a limiting slot and a limiting block on the light guiding plate, and passing the limit of the limiting block and the limiting plate.
  • the position and the retention of the limiting slot and the carrier plate enable the limit matching between the light guide plates of the plastic frame, thereby effectively limiting the movement of the backlight and the optical film, and reducing the assembly of the backlight and the light guide plate. Difficulty and bad rate, mention High stability and assembly efficiency of the backlight module assembly.
  • FIG. 1 is a schematic structural view of a plastic frame of a backlight module according to an embodiment of the present invention.
  • FIG. 2 is a schematic perspective cross-sectional view of the plastic frame shown in FIG. 1.
  • FIG. 3 is a schematic exploded view of a backlight module according to an embodiment of the invention.
  • FIG. 4 is a schematic cross-sectional view of the backlight module shown in FIG. 3.
  • Figure 5 is a schematic cross-sectional view of a display device in accordance with an embodiment of the present invention.
  • an embodiment of the present invention provides a backlight module 10 including a plastic frame 11 , a light guide plate 12 , and a backlight 13 .
  • the plastic frame 11 includes two opposite side walls 111 and an end wall 112 connecting the two side walls 111.
  • a bearing plate 14 is disposed on a side of the end wall 112 between the two side walls 111, and the limiting plate 15 is connected between the two side walls 111.
  • the limiting plate 15 and the supporting plate 14 are respectively located on opposite sides of the light guiding plate 12 .
  • the limiting plate 15 and the carrying plate 14 are oppositely disposed opposite to each other.
  • the limiting plate 15 clamps and fixes the light guide plate 12 and the optical film 17 from the upper and lower sides.
  • the limiting plate 15 is disposed parallel to the carrier plate 14 and offset from each other.
  • the light guide plate 12 is provided with a light incident surface 121, a limiting block 122 and a limiting slot 123.
  • the limiting block 122 and the limiting slot 123 are respectively disposed on two opposite surfaces of the light guide plate 12, and
  • the light guide plate 12 is provided with one end of the light incident surface 121.
  • the frame 11 is disposed on the periphery of the light guide plate 12, and the backlight 13 is disposed on the carrier plate 14 between the plastic frame 11 and the light incident surface 121 of the light guide plate 12.
  • the carrier board 123 is clamped.
  • the limiting block 122 is located between the end wall 112 and the limiting plate 15 and abuts against the limiting plate 15 to position the light guide plate 12 on the plastic frame 11 .
  • the surface of the end wall 112 of the plastic frame 11 between the two side walls 111 is an inner surface 113, and the carrier plate 14 is disposed at one side of the inner surface 113; A side of the two side walls 111 away from the carrier plate 14 and a spacing 114 between the limiting plate 15 and the end wall 112.
  • the plastic frame 11 is a rectangular frame, and the carrier plate 14 and the limiting plate 15 are strip-shaped plates.
  • the carrier plate 14 extends from one side of the inner surface 113 into the plastic frame 11.
  • the limiting plate 15 is disposed between the two side walls 111 and forms the spacing 114 between the two side walls 111 , so that the limiting plate 15 is parallel and offset from the carrier plate 14 .
  • the width of the spacing 114 is the same as the width of the carrier plate to just expose the carrier board 14, that is, the projection of the limiting board 15 on the plane of the carrier board 14 is adjacent to the carrier board 14, which is more conducive to the backlight 13 and Positioning and assembly of the light guide plate 12.
  • the projection of the limiting plate 15 on the plane of the carrier board 14 in the present invention may also be partially overlapped, completely overlapped or completely separated from the carrier board 14, and is not limited to the opposite position of the misalignment in the embodiment.
  • the limiting slot 123 can continue to extend to the right, and the corresponding carrier plate 14 is also extended to the right until the limiting plate 15 is completely covered, that is, the projection of the limiting plate 15 on the plane of the carrier board 14 is realized. It completely overlaps with the carrier plate 14.
  • This embodiment is only intended to provide a preferred embodiment and is not intended to limit the invention.
  • the limiting plate 15 is disposed in parallel with the carrier plate 14 in the present invention, which is only a preferred embodiment and is not intended to limit the present invention.
  • the specific position and shape of the limiting plate 15 and the carrier plate 14 may be adaptively changed according to the shape and position of the upper limit block 122 and the limiting groove 123 of the light guide plate 12, and may be inclined if necessary.
  • the related changes of the limiting plate 15, the receiving plate 14, the limiting block 122 and the limiting slot 123 in the embodiment are as follows: as long as the limiting plate 15 and the supporting plate 14 can pass through the limiting block 122 and the limiting slot 123,
  • the light guide plate 12 is restrained on the left and right sides, and the optical film 17 and the light guide plate 12 can be clamped from the upper and lower sides, and should be considered as being within the scope of the present invention.
  • the light guide plate 12 further includes a light emitting surface 124 and a bottom surface 125 opposite to the light emitting surface 124.
  • the light-receiving surface 121 is connected to the light-emitting surface 124 and the bottom surface 125.
  • the limiting block 122 is disposed on the light-emitting surface 124.
  • the limiting groove 123 is disposed on the bottom surface 125 and penetrates the bottom surface 125 and the light-incident surface 121.
  • the limiting block 122 is disposed on the light-emitting surface 124 adjacent to an end of the light-incident surface 121.
  • the limiting block 122 is offset from the limiting slot 123.
  • the limiting slot 123 is engaged with the carrier plate 13.
  • the end of the carrier plate 14 is inserted into the limiting slot 123 from the light-incident surface 121 to support and position the light guide plate 12, and the limiting block 122 is located in the spacing 114 and is further limited by the limiting plate 15. The position makes the positioning more accurate, and the assembly of the light guide plate 12 is more convenient and quick.
  • the backlight module 10 further includes a retroreflective sheeting 16 disposed under the bottom surface 125 of the light guide plate 12 and extending to the bottom of the carrier plate 14 to assist the light source 13 and the light guide plate.
  • the light is fully utilized and used as the bottom surface of the backlight module 10.
  • the backlight module 10 further includes an optical film 17 mounted on the light emitting surface 124 of the light guide plate 12. Both sides of the optical film 17 are sandwiched and fixed by the light guide plate 12 and the limiting plate 15, which effectively prevents the optical film 17 from moving in the vertical direction, and the end of the optical film 17 is in contact with the limiting block 122. The optical film 17 is further prevented from moving in the horizontal direction, thereby realizing the effective positioning of the optical film 17, and improving the stability of the assembly of the backlight module.
  • an end surface of the limiting plate 15 facing the end wall 112 is a first end surface 151
  • an end surface of the carrier plate 14 facing the limiting plate 15 is a second end surface 141
  • the first The end surface 151 is disposed opposite to the second end surface 141 and is located on the same plane.
  • the limiting plate 15 is offset from the carrying plate 14
  • the distance between the limiting plates 15 is the width of the carrying plate 14 .
  • the limiting block 122 When the limiting block 122 is engaged with the limiting plate 15, when the limiting slot 123 is engaged with the carrier plate 14, the first end surface 151 and the second end surface 141 are in the same plane.
  • the holding force of the limiting plate 15 to the limiting block 122 is opposite to the holding force of the limiting slot 123 to the carrying plate 14, and the light guide plate 12 is fixed. Meanwhile, the limiting plate 15 presses the optical One end of the diaphragm 17 further restricts the optical film 17 and the light guide plate 12 at the same time, thereby preventing the optical film 17 and the light guide plate 12 from shaking in the plastic frame 11.
  • the backlight 13 includes a light source circuit board 131 and a light emitting member 132 disposed on the light source circuit board.
  • the light source circuit board 131 is located between the limiting block 122 and the end wall 112.
  • the illuminating member 132 is disposed opposite to the light incident surface 121.
  • the light-emitting members 132 are plural and spaced on one surface of the light source circuit board 131.
  • the light source circuit board 131 is disposed between the limiting block 122 and the end wall 112 and is clamped and fixed by the limiting block 122, the light incident surface of the light guide plate, and the end wall 112.
  • the end wall 112, the backlight 13, the limiting block 122, and the limiting plate 15 are fixedly connected by the double-sided tape 19.
  • the backlight film assembly of the present invention is provided with a parallel and misaligned carrier plate 14 and a limiting plate 15 on the plastic frame, and a corresponding limiting groove 123 and a limiting block 122 are disposed on the light guiding plate, and the limiting block 122 is
  • the limiting of the limiting plate 15 and the holding of the limiting slot 123 and the carrying plate 14 realize the limit between the light guiding plate 12 of the plastic frame 11 and effectively limit the backlight 13 and the optical film 17
  • the movement reduces the assembly difficulty and the defect rate of the backlight 13 and the light guide plate 12, thereby ensuring the stability of the assembly of the backlight module, improving the assembly efficiency, saving the design of the back plate, and reducing the assembly difficulty of the backlight module.
  • the present invention further relates to a display device including the backlight module 10 and a liquid crystal panel 20 mounted on the backlight module 10 .
  • the liquid crystal panel 20 is disposed on the backlight module 10 opposite to the optical film 17 .

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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)

Abstract

背光模组包括胶框（11）、导光板（12）及背光源（13），胶框（11）的端壁（112）连接两相对侧壁（111）、且内侧有承载板（14），两侧壁（111）间连有限位板（15），限位板（15）与承载板（14）位于导光板（12）相对两侧；导光板（12）的限位块（122）与限位槽（123）设于两相对表面且靠近入光面（121）一端，胶框（11）设于导光板（12）周缘，背光源（13）装于承载板（14）上且位于入光面（121）一侧，限位槽（123）与承载板（14）卡持，限位块（122）位于端壁（112）与限位板（15）之间并与限位板（15）抵持以将导光板（12）定位于胶框（11）上。

Description

背光模组及显示装置
本发明要求2015年5月25日递交的发明名称为“背光模组及显示装置”的申请号201510270063.3的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及液晶显示技术领域，特别涉及一种背光模组及显示装置。
背景技术
目前，液晶显示装置作为电子设备的显示部件已经广泛的应用于各种电子产品中，随着电子产品轻薄化的发展，电子设备的显示装置要求越来越高。而背光模组则是液晶显示装置中的一个重要部件，背光模组的品质及性能要求也越来越高。
现有技术中的背光模组均包括胶框，导光板及光学膜片，所述胶框设于所述导光板周缘，所述光学膜片通过遮光胶带固定于所述胶框上。这种结构背光模组的导光板都是通过一背板承载，但是，导光板与胶框无直接固定结构、而胶框与背板之间需要设置固定结构，这样不仅影响背光模组的组装的稳定性和装配效率，还增加了背光模组的组装难度，影响背光模组的性能。
发明内容
本发明的目的在于提供一种背光模组，保证了胶框与导光板之间的限位，增强了背光模组组装的稳定性。
本发明还提供一种显示装置。
本发明提供一种背光模组，其包括胶框、导光板及背光源，所述胶框包括两个相对的侧壁及连接两个侧壁的端壁，所述端壁上位于两个侧壁之间的一侧设有承载板，所述两个侧壁之间连接有限位板，所述限位板与所述承载板分别位于所述导光板的相对两侧，所述导光板设有入光面、限位块及限位槽，所述限位块与所述限位槽设于所述导光板的两个相对的表面上，并且靠近所述导光 板设有入光面的一端，所述胶框设于导光板周缘，所述背光源装于所述承载板上且位于入光面的一侧，所述限位槽与所述承载板卡持，所述限位块位于所述端壁与所述限位板之间并与限位板抵持进而将所述导光板定位于所述胶框上。
其中，所述限位板与所述承载板错位相对设置，所述限位板朝向所述端壁的方向的端面为第一端面，所述承载板朝向限位板方向的端面为第二端面，所述第一端面与第二端面相对设置且位于同一平面上。
其中，所述胶框的端壁位于两个侧壁之间的表面为内表面，所述承载板设于内表面的一侧；所述限位板设于所述两个侧壁上远离承载板的一侧，并且所述限位板与所述端壁之间具有间距，所述间距的宽度与所述承载板的宽度相同。
其中，所述导光板还包括出光面及与出光面相对的底面，所述入光面连接出光面与底面，所述限位块凸设于所述出光面上，所述限位槽设于底面并贯通底面与入光面。
其中，所述背光源包括光源电路板及设于光源电路板的发光件，所述光源电路板位于所述限位块与所述端壁之间，所述发光件与所述入光面相对设置。
其中，所述端壁、限位块、限位板通过双面胶固定。
其中，所述限位板在承载板所在平面上的投影与承载板部分重叠或完全重叠。
其中，所述背光模组还包括光学膜片，所述光学膜片装设于所述导光板的出光面上，且光学膜片的端部被所述导光板及限位板夹持。
本发明提供一种显示装置，其包括所述的背光模组及装于所述背光模组上的液晶面板。
其中，，所述背光模组还包括光学膜片，所述光学膜片装设于所述导光板上，且光学膜片的端部被所述导光板及限位板夹持，所述液晶面板设于所述背光模组上与光学膜片相对。
本发明的背光膜组在胶框上设置平行且错位相对设置的承载板及限位板，相对应的在导光板上设置限位槽及限位块，通过限位块与限位板的限位，及限位槽与承载板的卡持，实现胶框所述导光板之间的限位配合，从而有效的限制了背光源和光学膜片的移动，降低了背光源和导光板的装配难度和不良率，提 高了背光模组组装的稳定性和组装效率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例的背光模组的胶框的结构示意图。
图2是图1所示的胶框的立体截面示意图。
图3是本发明实施例的背光模组的分解结构示意图。
图4是图3所示的背光模组的截面示意图。
图5是本发明实施例的显示装置的截面示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1、图2及图3，本发明的实施方式提供一种背光模组10，其包括胶框11、导光板12及背光源13。所述胶框11包括两个相对的侧壁111及连接两个侧壁111的端壁112。所述端壁112上位于两个侧壁111之间的一侧设有承载板14，所述两个侧壁111之间连接有限位板15。所述限位板15与所述承载板14分别位于所述导光板12的相对两侧，本实施例中，所述限位板15与所述承载板14错位相对设置，所述限位板15位于两个侧壁111上远离所述承载板14的一侧，结合图2和图4，即承载板14位于胶框11的底部，限位板15位于胶框11的顶部，承载板14和限位板15从上下两侧夹紧固定导光板12和光学膜片17。所述限位板15与所述承载板14平行且错位相对设置。
所述导光板12设有入光面121、限位块122及限位槽123。所述限位块122与所述限位槽123分别设于所述导光板12的两个相对的表面上，并且靠 近所述导光板12设有入光面121的一端。所述胶框11套设于导光板12周缘，所述背光源13装于所述承载板14上且位于胶框11与导光板12的入光面121之间，所述限位槽123与所述承载板123卡持。所述限位块122位于所述端壁112与所述限位板15之间并与限位板15抵持进而将所述导光板12定位于所述胶框11上。
本实施例中，所述胶框11的端壁112位于两个侧壁111之间的表面为内表面113，所述承载板14设于内表面113的一侧；所述限位板15设于所述两个侧壁111上远离承载板14的一侧，并且所述限位板15板与所述端壁112之间具有间距114。优选的，所述胶框11为矩形框体，所述承载板14与所述限位板15均为条形板体。所述承载板14由内表面113的一侧向胶框11内延伸。所述限位板15设于两个侧壁111之间且与内表面113之间形成所述间距114，进而使所述限位板15与承载板14平行且错位相对设置。优选的，所述间距114的宽度与所述承载板的宽度相同以恰好裸露承载板14，即限位板15在承载板14所在平面上的投影与承载板14邻接，更利于背光源13和导光板12的定位和组装。
可以理解的是，本发明中限位板15在承载板14所在平面上的投影与承载板14还可以是部分重叠、完全重叠或完全分离，并不限于本实施例中错位相对的邻接情况。比如，参见图4，限位槽123可以继续向右延伸，对应的承载板14也向右一直伸展，直至完全覆盖限位板15，即实现限位板15在承载板14所在平面上的投影与承载板14完全重叠。本实施例只是提供一种优选实施方式，并不用于限定本发明。
同样，可以理解的是，本发明中限位板15与承载板14平行设置，只是优选实施方式，并不用于限定本发明。限位板15和承载板14的具体位置和形状等，也可以根据导光板12上限位块122和限位槽123的形状和位置进行适应性的变化，必要时也可以倾斜设置。
上述对本实施例中限位板15、承载板14、限位块122和限位槽123的相关变化，只要确保限位板15和承载板14能通过限位块122和限位槽123，从左右两侧对导光板12进行限位，且能从上下两侧夹紧固定光学膜片17和导光板12，则应均视为在本发明所涵盖的范围内。
进一步的，所述导光板12还包括出光面124及与出光面124相对的底面125。所述入光面121连接出光面124与底面125，所述限位块122凸设于所述出光面124上，所述限位槽123设于底面125并贯通底面125与入光面121。本实施例中，所述限位块122凸设于所述出光面124上靠近设有入光面121的一端。所述限位块122与所述限位槽123错位设置，所述限位块122与所述限位板15抵持时，所述限位槽123与承载板13卡持。所述承载板14的端部从入光面121插入所述限位槽123内以支撑和定位导光板12，同时所述限位块122位于所述间距114内并被限位板15进一步限位，使得定位更准确，导光板12的组装更便捷快速。
更进一步的，所述背光模组10还包括反光片16，所述反光片16装设于所述导光板12的底面125下方并延伸至承载板14底部，辅助所述灯源13及导光板12充分利用光线，且作为所述背光模组10的底面使用。
进一步的，所述背光模组10还包括光学膜片17，所述光学膜片17装设于所述导光板12的出光面124上。光学膜片17的两侧被所述导光板12及限位板15夹持固定，有效避免了光学膜片17沿竖直方向的移动，而且光学膜片17的端部与限位块122抵持，进一步避免了光学膜片17沿水平方向的移动，从而实现了光学膜片17的有效定位，提高了背光模组组装的稳定性。
本实施例中，所述限位板15朝向所述端壁112的方向的端面为第一端面151，所述承载板14朝向限位板15方向的端面为第二端面141，所述第一端面151与第二端面141相对设置且位于同一平面上。优选的，所述限位板15与所述承载板14错开设置，错开的距离为所述承载板14的宽度，俯视胶框11时，所述第一端面151与第二端面141恰好对接。当所述限位块122与所述限位板15卡持时，所述限位槽123与承载板14卡持时，由于所述第一端面151与第二端面141位于同一平面，所述限位板15给所述限位块122的卡持力与限位槽123给承载板14的卡持力相反，恰好将导光板12固定，同时，所述限位板15抵压所述光学膜片17的一端，进而将光学膜片17、导光板12同时限位，防止光学膜片17、导光板12于胶框11内晃动。
进一步的，所述背光源13包括光源电路板131及设于光源电路板的发光件132，所述光源电路板131位于所述限位块122与所述端壁112之间，所述 发光件132与所述入光面121相对设置。本实施例中，所述发光件132为多个且间隔排列于所述光源电路板131的一表面上。所述光源电路板131装于所述限位块122与所述端壁112之间且被所述限位块122、导光板的入光面和所述端壁112夹持固定。优选的，所述端壁112、背光源13、限位块122、限位板15通过双面胶19固定连接。
本发明的背光膜组在胶框上设置平行且错位相对设置的承载板14及限位板15，相对应的在导光板上设置限位槽123及限位块122，通过限位块122与限位板15的限位，及限位槽123与承载板14的卡持，实现胶框11所述导光板12之间的限位，并有效的限制了背光源13和光学膜片17的移动，降低了背光源13和导光板12的装配难度和不良率，从而保证了背光模组组装的稳定性，提高组装效率的同时还节省了背板的设计，降低背光模组的组装难度。
请参阅图3，本发明还涉及一种显示装置，其包括所述的背光模组10及装于所述背光模组上10的液晶面板20。所述液晶面板20设于所述背光模组10上与光学膜片17相对。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，本领域普通技术人员可以理解实现上述实施例的全部或部分流程，并依本发明权利要求所作的等同变化，仍属于发明所涵盖的范围。

Claims (16)

  1. 一种背光模组，其包括胶框、导光板及背光源，其中,所述胶框包括两个相对的侧壁及连接两个侧壁的端壁，所述端壁内侧设有承载板，所述两个侧壁之间连接有限位板，所述限位板与所述承载板分别位于所述导光板的相对两侧，所述导光板设有入光面、限位块及限位槽，所述限位块与所述限位槽分别设于所述导光板的两个相对的表面上，并且靠近所述导光板设有入光面的一端，所述胶框套设于所述导光板周缘，所述背光源装于所述承载板上且位于所述胶框与所述导光板之间，所述限位槽与所述承载板卡持，所述限位块位于所述端壁与所述限位板之间并与所述限位板抵持。
  2. 如权利要求1所述的背光模组，其中，所述限位板与所述承载板错位相对设置，所述限位板朝向所述端壁的方向的端面为第一端面，所述承载板朝向限位板方向的端面为第二端面，所述第一端面与第二端面相对设置且位于同一平面上。
  3. 如权利要求1所述的背光模组，其中，所述胶框的端壁位于两个侧壁之间的表面为内表面，所述承载板设于内表面的一侧；所述限位板设于所述两个侧壁上远离承载板的一侧，并且所述限位板与所述端壁之间具有间距，所述间距的宽度与所述承载板的宽度相同。
  4. 如权利要求1所述的背光模组，其中，所述导光板还包括出光面及与出光面相对的底面，所述入光面连接出光面与底面，所述限位块凸设于所述出光面上，所述限位槽设于所述底面上并贯通所述底面与所述入光面。
  5. 如权利要求1所述的背光模组，其中，所述背光源包括光源电路板及设于光源电路板上的发光件，所述光源电路板位于所述限位块与所述端壁之间，所述发光件与所述入光面相对设置。
  6. 如权利要求1所述的背光模组，其中，所述端壁、背光源、限位块、限位板通过双面胶固定连接。
  7. 如权利要求1所述的背光模组，其中，所述限位板在承载板所在平面上的投影与承载板部分重叠或完全重叠。
  8. 如权利要求1所述的背光模组，其中，所述背光模组还包括光学膜片， 所述光学膜片装设于所述导光板的出光面上，且所述光学膜片的两侧分别被所述导光板和所述限位板夹持固定，所述光学膜片的端部与所述限位块抵持。
  9. 一种显示装置，其背光模组及装于所述背光模组上的液晶面板，所述背光模组，其包括胶框、导光板及背光源，其中，所述胶框包括两个相对的侧壁及连接两个侧壁的端壁，所述端壁内侧设有承载板，所述两个侧壁之间连接有限位板，所述限位板与所述承载板分别位于所述导光板的相对两侧，所述导光板设有入光面、限位块及限位槽，所述限位块与所述限位槽分别设于所述导光板的两个相对的表面上，并且靠近所述导光板设有入光面的一端，所述胶框套设于所述导光板周缘，所述背光源装于所述承载板上且位于所述胶框与所述导光板之间，所述限位槽与所述承载板卡持，所述限位块位于所述端壁与所述限位板之间并与所述限位板抵持。
  10. 如权利要求9所述的显示装置，其中，所述限位板与所述承载板错位相对设置，所述限位板朝向所述端壁的方向的端面为第一端面，所述承载板朝向限位板方向的端面为第二端面，所述第一端面与第二端面相对设置且位于同一平面上。
  11. 如权利要求9所述的显示装置，其中，所述胶框的端壁位于两个侧壁之间的表面为内表面，所述承载板设于内表面的一侧；所述限位板设于所述两个侧壁上远离承载板的一侧，并且所述限位板与所述端壁之间具有间距，所述间距的宽度与所述承载板的宽度相同。
  12. 如权利要求9所述的显示装置，其中，所述导光板还包括出光面及与出光面相对的底面，所述入光面连接出光面与底面，所述限位块凸设于所述出光面上，所述限位槽设于所述底面上并贯通所述底面与所述入光面。
  13. 如权利要求9所述的显示装置，其中，所述背光源包括光源电路板及设于光源电路板上的发光件，所述光源电路板位于所述限位块与所述端壁之间，所述发光件与所述入光面相对设置。
  14. 如权利要求9所述的显示装置，其中，所述端壁、背光源、限位块、限位板通过双面胶固定连接。
  15. 如权利要求9所述的显示装置，其中，所述限位板在承载板所在平面上的投影与承载板部分重叠或完全重叠。
  16. 如权利要求9所述的显示装置，其中，所述背光模组还包括光学膜片，所述光学膜片装设于所述导光板上，且所述光学膜片的两侧分别被所述导光板及所述限位板夹持固定，所述光学膜片的端部与所述限位块抵持，所述液晶面板设于所述背光模组上与光学膜片相对
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