WO2017080038A1 - 一种背光模组及显示装置 - Google Patents

一种背光模组及显示装置 Download PDF

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Publication number
WO2017080038A1
WO2017080038A1 PCT/CN2015/098747 CN2015098747W WO2017080038A1 WO 2017080038 A1 WO2017080038 A1 WO 2017080038A1 CN 2015098747 W CN2015098747 W CN 2015098747W WO 2017080038 A1 WO2017080038 A1 WO 2017080038A1
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WO
WIPO (PCT)
Prior art keywords
backlight module
strip
middle frame
fixing
display device
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/CN2015/098747
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English (en)
French (fr)
Inventor
李德华
俞刚
萧宇均
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
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Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US14/907,864 priority Critical patent/US20170261802A1/en
Publication of WO2017080038A1 publication Critical patent/WO2017080038A1/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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/13332—Front frames
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133325—Assembling processes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133328—Segmented frames
    • 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
    • G02F2201/46—Fixing elements
    • G02F2201/465—Snap -fit

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a backlight module and a display device.
  • the existing display module design method generally uses a display panel and a backlight module to form a complete display module structure, and the thinning of the display module is mainly realized by thinning of the backlight module.
  • the backlight module is mainly composed of an iron frame, a reflective sheet, a backlight panel and an optical film.
  • the prior art mainly reduces the thickness of each structural component of the backlight module to reduce the thickness of the backlight module, but each structural component
  • the thinning has certain limits, and the various structural fixings after redesign become more complicated. The setting of various connecting parts makes the thinning effect less obvious, and the disassembly and assembly is cumbersome.
  • the present invention provides a backlight module and a display device which are easy to assemble and disassemble and have few connectors.
  • a backlight module includes a middle frame and a back plate.
  • the middle frame includes at least three fixing bars, and the three fixing bars are respectively fixed on three side lines of the backing plate facing the light emitting surface.
  • the fixing strip is engaged with the backboard.
  • the backing plate includes a backing plate body, a retaining wall formed by folding from a side of the backing plate body toward the light emitting surface, and a hanging platform formed by folding the retaining wall toward the middle, the fixing bar being at least partially It is accommodated between the hanging platform and the back plate main body.
  • the fixing strip is engaged with the retaining wall or the hanging platform.
  • a first engaging hole is defined in the hanging frame, and a first protrusion for engaging in the first engaging hole is protruded from a top of the middle frame.
  • one side of the first protrusion adjacent to the retaining wall is an inclined surface.
  • the middle frame further comprises an elastic connecting portion connected at an intersection of two adjacent fixing strips.
  • the middle frame further includes a lap strip, and the lap strip and the fixing strip are quadrilateral and fixed on the backboard.
  • the lap strip has an "L" shape in cross section, and is fixed on the side wall of the backboard and the top surface of the fixing strip.
  • Another object of the present invention is to provide a display device including the above backlight module, a liquid crystal panel disposed on the backlight module, and a front frame disposed outside the liquid crystal panel.
  • the invention is provided with a split-type middle frame in the backlight module, and is designed to be easily disassembled by designing a fixed structure matched with the middle frame on the back plate; the back plate is folded to form a retaining wall and a hanging platform, and the middle frame can be pressed The sequence slides along the main body of the back plate into the gap between the back plate and the hanging plate, and is engaged with the back plate, thereby saving the threaded fasteners, reducing the difficulty of disassembly and assembly, and also reducing the backlight module and the display device. thin.
  • FIG. 1 is a schematic structural view of a display device according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic exploded view showing the structure of a display device according to Embodiment 1 of the present invention.
  • FIG. 3 is an exploded perspective view showing a partial structure of a backlight module according to Embodiment 1 of the present invention.
  • Figure 4 is a partial enlarged view of a portion A in Figure 3.
  • FIG. 5 is a schematic diagram of a middle frame installation according to Embodiment 1 of the present invention.
  • FIG. 6 is a cross-sectional structural view showing a display device according to Embodiment 1 of the present invention.
  • FIG. 7 is a cross-sectional structural view showing another display device according to Embodiment 1 of the present invention.
  • FIG. 8 is a partial structural diagram of a backlight module according to Embodiment 2 of the present invention.
  • Fig. 9 is a schematic view showing an installation state of the middle frame of the second embodiment of the present invention.
  • Figure 10 is a schematic view showing another mounting state of the middle frame of the second embodiment of the present invention.
  • Figure 11 is a partial enlarged view of a portion B in Figure 10.
  • the display device of the embodiment of the present invention includes a backlight module (not labeled), a liquid crystal panel 30 disposed on the backlight module, and a front frame 40 disposed outside the liquid crystal panel 30 , and the liquid crystal panel 30 .
  • the front frame 40 of the frame structure is used for limiting and protecting.
  • the backlight module of the embodiment includes a middle frame 10, a back plate 20, an LED light bar 1, a reflection sheet 2, a light guide plate 3, and an optical film 4.
  • the middle frame 10 includes three fixing strips 100 and a single The strip 102, the three fixing strips 100 and the overlapping strips 102 are respectively fixed on the four side lines of the backing plate 20 on the side of the light-emitting surface, and are surrounded by a quadrangle.
  • the fixing strips 100 are respectively engaged with the backing plate 20, and the overlapping strips 102 are fixed on the backing plate 20 by pasting or the like.
  • the lap strip 101 has an "L" shape. When the fixing strip 100 is assembled, the lap strip 101 is simultaneously attached and fixed to the top surface of the back panel 20 and the top surface of the fixing strip 100.
  • the back plate 20 includes a back plate main body 21, a retaining wall 22 formed by folding from the side of the back plate main body 21 toward the light emitting surface, and a hanging frame 23 formed by folding the retaining wall 22 toward the center.
  • the wall 22 is perpendicular to the back plate main body 21, and the hanging table 23 is parallel to the back plate main body 21.
  • the fixing bar 100 is at least partially accommodated between the hanging table 23 and the back plate main body 21 and is engaged with the retaining wall 22 or the hanging frame 23.
  • the plurality of hanging frames 23 of the present embodiment are disposed in a row at intervals on the retaining wall 22, and each of the hanging platforms 23 is provided with a first engaging hole 230; correspondingly, the middle frame 10
  • the top protrusion 11 is provided with a first protrusion 11 for being inserted into the corresponding first engaging hole 230.
  • the fixing strips 100 on the left and right short sides of the backboard 20 are assembled first, and then the fixing strips 100 on the long sides in the middle are assembled. Since the hanging frame 23, the retaining wall 22 and the backing plate main body 21 are configured to limit the fixing bar 100, the fixing bar 100 can slide from the middle portion to the opposite side of the retaining wall 22 along the back plate main body 21, After the frame 10 is inserted into the gap between the hanging table 23 and the backing plate main body 21, the first protrusion 11 is engaged in the first engaging hole 230, and the hanging table 23 and the backing plate main body 21 function as guide insertion.
  • a side surface S of the first protrusion 11 adjacent to the retaining wall 22 is an inclined surface.
  • the side surface S pushes up the free end of the hanging platform 23, and finally overcomes the hanging platform 23.
  • the elastic deformation force is inserted into the first engaging hole 230, and the assembly is smoother.
  • the "L"-shaped overlapping strip 101 is assembled to limit the LED light bar 1, the reflection sheet 2, the light guide plate 3, and the optical film 4.
  • the hanging table 23 can also be configured as one, and a plurality of first engaging holes 230 are defined therein.
  • the liquid crystal panel 30 is attached to the top surface of the hanging table 23 of the backboard 20, and finally the front frame 40 is installed. After the liquid crystal panel 30 is mounted on the hanging platform 23, the hanging platform 23 is in the longitudinal direction. The degree of freedom is further limited, so that the middle frame 10 is not easily loosened, and assembly reliability is improved.
  • FIG. 7 another matching structure of the fixing strip 100 and the backing plate 20 is defined. Specifically, a second protrusion 230 ′ is protruded from the top of the hanging frame 23 , and a second protrusion 230 ′ is opened at the top of the middle frame 10 .
  • the second engaging hole 11' is provided, and at the same time, the surface of the second protrusion 230' near the end of the hanging table 23 is an inclined surface for the convenience of assembly.
  • the middle frame By designing the middle frame to form a component and designing the retaining wall and the hanging platform on the back plate, the middle frame can slide along the main body of the back plate into the gap between the hanging plate and the hanging plate in sequence, and the back plate
  • the card is matched to save the threaded fasteners, which reduces the difficulty of disassembly and assembly.
  • the backlight module is further facilitated. Thinning of groups and display devices.
  • the middle frame 10 of the present embodiment further includes an elastic connecting portion 101 connected at an intersection of two adjacent fixing bars 100.
  • the elastic connecting portion 101 can be configured to be respectively connected to the thin plates at two corners.
  • the fixing strips 100 on both sides can be bent at an angle toward the middle, and the intermediate fixing strip 100 is firstly directed along the backing plate main body 21
  • the retaining wall 22 slides, and the first protrusion 11 is engaged into the first engaging hole 230, and then the fixing strips 100 on the two sides are respectively slid toward the corresponding retaining wall 22 and assembled, which can effectively avoid two when assembling.
  • the interference between the side fixing strips 100 and the backing plate 20 is particularly suitable for assembly of a small-sized display device, which can improve assembly efficiency, reduce the complexity of the display device, and reduce the cost of mold opening.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种背光模组和显示装置，所述背光模组包括中框（10）和背板（20），所述中框（10）至少包括三根固定条（100），三根所述固定条（100）分别固定在所述背板（20）朝向出光面一侧的三条边线上。在背光模组内设置有分件式的中框（10），通过在背板（20）上设计与中框（10）匹配的固定结构，拆卸方便；将背板（20）上翻折形成挡墙（22）及挂台（23），中框（10）可以按顺序沿背板（20）主体滑入其与挂台（23）之间的间隙内，并与背板（20）卡接配合，节省了螺纹紧固件，降低了拆卸和装配难度，也有利于背光模组和显示装置的减薄。

Description

一种背光模组及显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种背光模组及显示装置。
背景技术
随着液晶技术的发展，显示模组薄形化设计成为了产品的重要发展方向之一。现有的显示模组设计方式通常是利用显示面板和背光模组等组成完整的显示模组结构，显示模组的减薄主要通过背光模组的减薄实现。而背光模组主要由铁框、反射片、背光板和光学膜片组成，现有技术主要通过减薄该背光模组的各个结构部材的厚度来实现背光模组的减薄，但各个结构部材的减薄均有一定的极限，重新设计后的各种结构固定变得更加复杂，各种连接件的设置使得减薄效果并不太明显，拆装繁琐。
发明内容
鉴于现有技术存在的不足，本发明提供了一种拆装方便、连接件少的背光模组及显示装置。
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，包括中框和背板，所述中框至少包括三根固定条，三根所述固定条分别固定在所述背板朝向出光面一侧的三条边线上。
其中，所述固定条与所述背板卡接。
其中，所述背板包括背板主体、自所述背板主体四周朝出光面一侧翻折形成的挡墙以及自所述挡墙朝中间翻折形成的挂台，所述固定条至少部分容纳于所述挂台和所述背板主体之间。
其中，所述固定条与所述挡墙或所述挂台卡接。
其中，所述挂台上开设有第一卡合孔，所述中框顶部凸设有用于卡设于所述第一卡合孔内的第一凸起。
其中，所述第一凸起上靠近所述挡墙的一个侧面为倾斜面。
其中，所述中框还包括连接在相邻的两根所述固定条的交角处的弹性连接部。
其中，所述中框还包括搭接条，所述搭接条与所述固定条围成四边形，并固定在所述背板上。
其中，所述搭接条的截面为“L”形，同时固定在所述背板侧壁和所述固定条的顶面。
本发明的另一目的在于提供一种显示装置，包括上述的背光模组、设于所述背光模组上的液晶面板以及罩设在所述液晶面板外的前框。
本发明在背光模组内设置有分件式的中框，通过在背板上设计与中框匹配的固定结构，拆卸方便；将背板上翻折形成挡墙及挂台，中框可以按顺序沿背板主体滑入其与挂台之间的间隙内，并与背板卡接配合，节省了螺纹紧固件，降低了拆卸和装配难度，也有利于背光模组和显示装置的减薄。
附图说明
图1为本发明实施例1的显示装置的结构示意图。
图2为本发明实施例1的显示装置的结构分解示意图。
图3为本发明实施例1的背光模组的部分结构的分解示意图。
图4为图3中A处的局部放大图。
图5为本发明实施例1的中框安装示意图。
图6为本发明实施例1的一种显示装置的剖面结构示意图。
图7为本发明实施例1的另一种显示装置的剖面结构示意图。
图8为本发明实施例2的背光模组的部分结构示意图。
图9为本发明实施例2的中框的一个安装状态示意图。
图10为本发明实施例2的中框的另一个安装状态示意图。
图11为图10中B处的局部放大图。
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。
实施例1
参阅图1和图2，本发明实施例的显示装置包括背光模组(图未标)、设置在背光模组上的液晶面板30以及罩设在液晶面板30外的前框40，液晶面板30安装在背光模组的出光面侧后通过框体结构的前框40进行限位和保护。
本实施例的背光模组包括中框10、背板20、LED灯条1、反射片2、导光板3和光学膜片4，如图3，中框10包括三根固定条100和一根搭接条102，三根固定条100和搭接条102分别固定在背板20朝向出光面一侧的四条边线上，围成四边形。其中，固定条100分别与背板20卡接，搭接条102通过粘贴等方式固定在背板20上。其中搭接条101的截面为“L”形，当固定条100组装完成后，搭接条101同时贴合并固定在背板20侧壁和固定条100的顶面。
结合图4～6，背板20包括背板主体21、自背板主体21四周朝出光面一侧翻折形成的挡墙22以及自挡墙22朝中间翻折形成的挂台23，其中挡墙22垂直于背板主体21，挂台23平行于背板主体21，固定条100至少部分容纳于挂台23和背板主体21之间并与挡墙22或挂台23卡接。
具体地，如图6，本实施例的挂台23为多个，成排间隔设置在挡墙22上，每个挂台23上开设有第一卡合孔230；相应地，中框10的顶部凸设有用于卡设在对应的第一卡合孔230内的第一凸起11。
如图3，在中框10组装过程中，先组装背板20的左右两个短边上的固定条100，然后再组装位于中间的长边的固定条100。由于挂台23、挡墙22与背板主体21三者组成可对固定条100进行限位的结构，固定条100可沿着背板主体21自中部滑入至与挡墙22相对设置，中框10插入挂台23和背板主体21之间的间隙后，第一凸起11卡合进第一卡合孔230内，挂台23与背板主体21起到引导插入的作用。较佳地，第一凸起11上靠近挡墙22的一个侧面S为倾斜面，在固定条100滑入的过程中，该侧面S将挂台23自由端顶起，最终克服挂台23的弹性形变力卡入第一卡合孔230内，装配更加顺畅，最后再组装“L”形的搭接条101即可将LED灯条1、反射片2、导光板3和光学膜片4限制于其中。可以理解的是，挂台23也可以设置成一个，其上开设多个第一卡合孔230。
背光模组组装完毕后，将液晶面板30贴合安装在背板20的挂台23顶面，最后安装前框40即可，液晶面板30安装在挂台23上后，挂台23在纵向上的自由度被进一步限制，使得中框10不会轻易松动，组装可靠性得以提升。
如图7，为固定条100与背板20的另一种配合结构，具体是在挂台23顶部凸设有第二凸起230’，在中框10顶部开设有供第二凸起230’卡设的第二卡合孔11’，同时，为方便装配，第二凸起230’上靠近挂台23端部的面为倾斜面。
通过将中框设计成分件式，并在背板上设计与之配合的挡墙与挂台，中框可以按顺序沿背板主体滑入其与挂台之间的间隙内，并与背板卡接配合，节省了螺纹紧固件，降低了拆卸和装配难度；另外，由于在背板的侧边、背面并无任何用于连接中框的不规则结构以及螺丝孔，进一步有利于背光模组和显示装置的减薄。
实施例2
如图8～11，与实施例1不同的是，本实施例的中框10还包括连接在相邻的两根固定条100的交角处的弹性连接部101。该弹性连接部101可以被构造成分别连接在两个交角处的薄板，在组装时，两侧的固定条100可以朝中间弯折一定角度，先将中间的固定条100沿背板主体21朝挡墙22滑动，并使第一凸起11卡合进第一卡合孔230内，然后再使两侧的固定条100分别朝相应的挡墙22滑动并完成组装，可以有效避免组装时两侧的固定条100与背板20的干涉，尤其适合较小尺寸显示装置的组装，可以提高组装效率，降低显示装置的复杂度，减少开模成本。
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 (19)

  1. 一种背光模组，其中，包括中框和背板，所述中框至少包括三根固定条，三根所述固定条分别固定在所述背板朝向出光面一侧的三条边线上。
  2. 根据权利要求1所述的背光模组，其中，所述固定条与所述背板卡接。
  3. 根据权利要求1所述的背光模组，其中，所述背板包括背板主体、自所述背板主体四周朝出光面一侧翻折形成的挡墙以及自所述挡墙朝中间翻折形成的挂台，所述固定条至少部分容纳于所述挂台和所述背板主体之间。
  4. 根据权利要求3所述的背光模组，其中，所述固定条与所述挡墙或所述挂台卡接。
  5. 根据权利要求4所述的背光模组，其中，所述挂台上开设有第一卡合孔，所述中框顶部凸设有用于卡设于所述第一卡合孔内的第一凸起。
  6. 根据权利要求5所述的背光模组，其中，所述第一凸起上靠近所述挡墙的一个侧面为倾斜面。
  7. 根据权利要求1所述的背光模组，其中，所述中框还包括连接在相邻的两根所述固定条的交角处的弹性连接部。
  8. 根据权利要求1所述的背光模组，其中，所述中框还包括搭接条，所述搭接条与所述固定条围成四边形，并固定在所述背板上。
  9. 根据权利要求8所述的背光模组，其中，所述搭接条的截面为“L”形，同时固定在所述背板侧壁和所述固定条的顶面。
  10. 一种显示装置，其中，包括背光模组、设于所述背光模组上的液晶面板以及罩设在所述液晶面板外的前框，所述背光模组包括中框和背板，所述中框至少包括三根固定条，三根所述固定条分别固定在所述背板朝向出光面一侧的三条边线上。
  11. 根据权利要求10所述的显示装置，其中，所述固定条与所述背板卡接。
  12. 根据权利要求10所述的显示装置，其中，所述背板包括背板主体、自所述背板主体四周朝出光面一侧翻折形成的挡墙以及自所述挡墙朝中间翻折形成的挂台，所述固定条至少部分容纳于所述挂台和所述背板主体之间。
  13. 根据权利要求12所述的显示装置，其中，所述固定条与所述挡墙或所 述挂台卡接。
  14. 根据权利要求13所述的显示装置，其中，所述挂台上开设有第一卡合孔，所述中框顶部凸设有用于卡设于所述第一卡合孔内的第一凸起。
  15. 根据权利要求14所述的显示装置，其中，所述第一凸起上靠近所述挡墙的一个侧面为倾斜面。
  16. 根据权利要求10所述的显示装置，其中，所述中框还包括连接在相邻的两根所述固定条的交角处的弹性连接部。
  17. 根据权利要求10所述的显示装置，其中，所述中框还包括搭接条，所述搭接条与所述固定条围成四边形，并固定在所述背板上。
  18. 根据权利要求17所述的显示装置，其中，所述搭接条的截面为“L”形，同时固定在所述背板侧壁和所述固定条的顶面。
  19. 一种显示装置，其中，包括背光模组、设于所述背光模组上的液晶面板以及罩设在所述液晶面板外的前框，所述背光模组包括中框和背板，所述中框至少包括三根固定条和一根搭接条，三根所述固定条分别固定在所述背板朝向出光面一侧的三条边线上，所述搭接条与所述固定条围成四边形，并固定在所述背板上。
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