WO2021135519A1 - 背光模组及液晶显示装置 - Google Patents

背光模组及液晶显示装置 Download PDF

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Publication number
WO2021135519A1
WO2021135519A1 PCT/CN2020/122026 CN2020122026W WO2021135519A1 WO 2021135519 A1 WO2021135519 A1 WO 2021135519A1 CN 2020122026 W CN2020122026 W CN 2020122026W WO 2021135519 A1 WO2021135519 A1 WO 2021135519A1
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WO
WIPO (PCT)
Prior art keywords
middle frame
back plate
threaded
backlight module
hole
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Application number
PCT/CN2020/122026
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English (en)
French (fr)
Inventor
弋春城
马洪杰
Original Assignee
深圳Tcl新技术有限公司
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Application filed by 深圳Tcl新技术有限公司 filed Critical 深圳Tcl新技术有限公司
Publication of WO2021135519A1 publication Critical patent/WO2021135519A1/zh

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Classifications

    • 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

Definitions

  • This application relates to the field of liquid crystal display technology, and in particular to a backlight module and a liquid crystal display device.
  • the screw holes on one side of the middle frame are through holes.
  • the backplane and the middle frame are aligned and assembled, and then the screws are tightened from the outside of the backplane.
  • the display screen there is a risk of scratching the display screen, and it is easy to cause the middle frame to be scratched during the process of tightening the screws, and since the whole of the back plate and the middle frame protrude outward, the torque to tighten the screws from the outside is too large to lock the lock
  • the back plate and the middle frame are assembled, the outer surface of the back plate is exposed to the screw caps, which affects Beautiful.
  • the main purpose of this application is to propose a backlight module and a liquid crystal display device, which aims to solve the problem of using screws to tighten the screws from the outside of the back plate during the assembly process of the back plate and the middle frame of the liquid crystal display device in the prior art. Problems such as scratching the display screen and causing local deformation of the middle frame and backplane.
  • the present application proposes a backlight module, the backlight module includes a back plate and a middle frame, the middle frame covers the edge of the back plate to shield the edge of the back plate;
  • the edge of the back plate is provided with a threaded through hole
  • the inner side of the middle frame is provided with a threaded blind hole at a position corresponding to the threaded through hole, and the threaded through hole and the threaded blind hole are connected by a threaded fastener to connect the
  • the middle frame and the back plate are detachably connected.
  • the middle frame includes a middle frame body and a first extension part connected to the outside of the middle frame body, a mounting groove is formed between the first extension part and the middle frame body, and the threaded blind hole It is arranged on the inner side of the first extension part, and the edge of the back plate is placed in the installation groove, and is detachably connected to the first extension part by the threaded fastener.
  • the middle frame body is further provided with a second extension part, and the first extension part, the middle frame body and the second extension part enclose the mounting groove; the back plate A buckle is formed on the edge of the buckle, and the buckle is engaged with the mounting groove.
  • the buckle includes a first clamping section, a connecting section, and a second clamping section that are connected in sequence, the first clamping section abuts against the first extension, and the thread A through hole is opened on the first connecting section, the connecting section is pressed against the middle frame main body, and the second connecting section is pressed against the second extension part.
  • the sky side and the left and right sides of the back plate are covered with the middle frame, and the sky side and the left and right sides of the back plate are connected with the middle frame through the threaded fasteners. Disconnect the connection.
  • the backlight module further includes a diffuser plate, the diffuser plate is arranged inside the back plate, a support block is arranged on the ground side of the back plate, and the support block abuts against the diffuser plate. Connect and make the diffuser plate.
  • the support block is formed by bending the ground side of the back plate.
  • the number of the support blocks is multiple, and the multiple support blocks are arranged at intervals along the extension direction of the ground side of the backplane.
  • the back plate and the middle frame are both integrally formed parts.
  • the application also proposes a liquid crystal display device, which includes the above-mentioned backlight module.
  • the inner side of the middle frame is tapped to form a threaded blind hole.
  • the back plate is first laid flat, and then the middle frame is along the left and right sides of the back plate. Push in the entire position until the threaded blind holes on the middle frame are aligned with the threaded through holes on the back plate, and finally use a screwdriver to lock the back plate and the middle frame.
  • the backlight module of the present application completes the assembly of the backplane and the middle frame before the display screen is installed, which effectively avoids the risk of the screen being scratched by the screws.
  • the outer surface of the backplane has no
  • the exposed screw caps have a simple and beautiful appearance, and also prevent the risk of the middle frame being scratched by the screws.
  • the screws are tightened from the inner side of the back plate, which conforms to the protruding structure of the back plate and the middle frame to the outside of the back plate. The assembly method is reasonable.
  • the outer side of the back panel is smooth and tidy, effectively preventing the local deformation of the middle frame and the back panel, ensuring that the overall force of the middle frame and the back panel is uniform, and avoiding the risk of the back panel and the middle frame being easily damaged due to uneven forces, thereby improving The service life of the liquid crystal display device is improved.
  • FIG. 1 is a three-dimensional schematic diagram of the inner side of a backlight module according to an embodiment of the application
  • Fig. 2 is an enlarged schematic diagram of area A in Fig. 1;
  • FIG. 3 is a perspective schematic diagram of the outer side of a backlight module according to an embodiment of the application.
  • FIG. 4 is a schematic cross-sectional view of a backlight module according to an embodiment of the application.
  • FIG. 5 is a three-dimensional schematic diagram of the inner side of a backlight module according to an embodiment of the application.
  • Fig. 6 is an enlarged schematic diagram of area B in Fig. 5.
  • This application proposes a backlight module.
  • the backlight module includes a back plate 1 and a middle frame 2.
  • the middle frame 2 covers the edge of the back plate 1 to cover the edge of the back plate 1; the edge of the back plate 1 A threaded through hole 11 is provided.
  • the inner side of the middle frame 2 is provided with a threaded blind hole 21 at a position corresponding to the threaded through hole 11.
  • the threaded through hole 11 and the threaded blind hole 21 are connected by threaded fasteners to connect the middle frame 2 and the back plate 1 Removable connection.
  • the threaded fastener is a screw 3.
  • the inner side of the middle frame 2 is tapped to form a threaded blind hole 21.
  • the back plate 1 is first laid flat, and then the middle frame The frame 2 is pushed in along the left and right sides of the back plate 1 until the threaded blind holes 21 on the middle frame 2 are aligned with the threaded through holes 11 on the back plate 1, and finally the back plate 1 and the middle frame 2 are connected with screws 3 Lock tightly.
  • the backlight module of this embodiment assembles the back plate 1 and the middle frame 2, which effectively avoids the risk of scratching the screen by the screws 3.
  • the middle frame 2 includes a middle frame body 223 and a first extension part 221 connected to the middle frame body 223.
  • a mounting groove 22 is formed between the first extension part 221 and the middle frame body 223, and the threaded blind hole 21 is opened in The first extension 221, the edge of the back plate 1 is placed in the mounting groove 22, and is detachably connected to the first extension 221 by threaded fasteners.
  • the first extension 221 is the wall of the mounting groove 22
  • the middle frame body 223 is the bottom of the mounting groove 22
  • the threaded blind hole 21 is opened on the first extension 221
  • the threaded through hole 11 is opened at the edge of the back plate 1.
  • the outer edge of the back plate 1 is pushed in close to the first extension 221, so that the edge of the back plate 1 is received in the mounting groove 22, Until the threaded through holes 11 on the edge of the back plate 1 are aligned with the threaded blind holes 21 on the first extension 221, the screws 3 are tightened from the inner side of the back plate 1, and the structure is reasonable, which facilitates the assembly of the middle frame 2 and the back plate 1.
  • the middle frame main body 223 is further provided with a second extension portion 222.
  • the first extension portion 221, the middle frame main body 223 and the second extension portion 222 enclose a mounting groove 22; the edge of the back plate 1 is formed with a buckle 12, The buckle 12 is engaged with the installation slot 22 in a snap fit.
  • the first extension 221 and the second extension 222 together form the groove walls on both sides of the installation groove 22,
  • the middle frame main body 223 is the groove bottom of the installation groove 22, and the edge of the back plate 1 is formed by bending
  • the buckle 12 matched with the mounting groove 22 aligns the mounting groove 22 with the buckle 12 and directly pushes the middle frame 2 onto the back plate 1 to facilitate the alignment of the back plate 1 and the middle frame 2 and improve the assembly efficiency.
  • the buckle 12 includes a first clamping section 121, a pole-connecting section 123, and a second clamping section 122 connected in sequence.
  • the first clamping section 121 abuts against the first extension 221 and has a threaded through hole. 11 is opened on the first clamping section 121, the connecting pole section 123 abuts against the middle frame main body 223, and the second clamping section 122 abuts against the second extension 222.
  • the buckle 12 is in a tight fit with the mounting groove 22.
  • the first extension 221 and the first clamping section 121 are always in tight fit with each other, ensuring the back plate 1 The overall flatness.
  • the sky side and the left and right sides of the back plate 1 are covered with the middle frame 2, and the sky and left and right sides of the back plate 1 are detachably connected to the middle frame 2 by threaded fasteners.
  • the upper side and the left and right sides of the back plate 1 are provided with a plurality of threaded through holes 11 arranged at intervals, and the inner side of the middle frame 2 is provided with threaded blind holes corresponding to the multiple threaded through holes 11 twenty one.
  • the back plate 1 and the middle frame 2 When assembling the back plate 1 and the middle frame 2, first align the mounting slots 22 on the left and right sides of the middle frame 2 with the buckles 12 on the left and right sides of the back plate 1, and then directly align the middle frame 2 along the left and right sides of the back plate 1. Push into the back plate 1, and then clamp the mounting groove 22 on the upper side of the middle frame 2 to the buckle 12 on the upper side of the upper back plate 1, and finally tighten the multiple threaded through holes 11 and threaded blind holes 21 with screws 3 respectively , The assembly of the backplane 1 and the middle frame 2 is completed, the assembly is simple and convenient, and the middle frame 2 and the backplane 1 are closely matched, which improves the overall stability of the backlight module.
  • the backplane module further includes a diffuser plate 4, the diffuser plate 4 is arranged on the inner side of the backplate 1, a support block 13 is arranged on the ground side of the backplate 1, and the support block 13 abuts against the diffuser plate 4 to form a diffuser Board 4.
  • the back plate 1 is provided with a support block 13 for supporting the diffuser plate 4 on the lower side.
  • the diffuser plate 4 can be directly lapped on the support block 13, without the need for a lower middle frame assembly, which saves you While lowering the middle frame assembly, the assembly process is simplified.
  • the reduction of structural parts not only makes the assembly process of the backlight module simpler, but also reduces the cumulative error of assembly, improves assembly efficiency, and saves material costs.
  • the supporting block 13 is formed by bending the ground side of the back plate 1. As shown in Figures 5 and 6, the bottom edge of the 13-position backplane 1 of the support block is bent toward the inner side of the backplane 1, and the structure design is reasonable. There is no need to add new assembly components, and only the backplane 1 needs to be modified. Convenient for manufacturing and installation.
  • the number of support blocks 13 is multiple, and the multiple support blocks 13 are arranged at intervals along the extension direction of the ground side of the back plate 1.
  • the multiple support blocks 13 support the diffuser plate 4 so that the multiple support blocks 13 are evenly stressed, avoiding the risk of a single support block 13 being broken due to excessive force, while ensuring the balance of the diffuser plate 4, and the structure design is reasonable.
  • the back plate 1 and the middle frame 2 are both integrally formed parts. It facilitates the manufacture of the backplane 1 and the middle frame 2. The installation can be completed by directly pushing the middle frame 2 into the backplane 1, which reduces the difficulty of assembling the backlight module and at the same time reduces the cumulative error of the backlight module assembly. Improve the overall stability of the backlight module.
  • the application also proposes a liquid crystal display device, which includes the above-mentioned backlight module. Since the liquid crystal display device adopts all the technical solutions of all the foregoing embodiments, it has at least all the beneficial effects brought about by the technical solutions of the foregoing embodiments, which will not be repeated here.

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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)
  • Liquid Crystal (AREA)

Abstract

一种背光模组及液晶显示装置，背光模组包括背板（1）和中框（2），中框（2）覆盖在背板（1）的边缘，以遮挡背板（1）的边缘；背板（1）的边缘开设有螺纹通孔（11），中框（2）内侧对应螺纹通孔（11）的位置开设有螺纹盲孔（21），螺纹通孔（11）和螺纹盲孔（21）通过螺纹紧固件（3）连接，以将中框（2）与背板（1）可拆卸连接。

Description

背光模组及液晶显示装置
本申请要求于2019年12月31日申请的、申请号为201922484464.5、名称为“背光模组及液晶显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及液晶显示技术领域，特别涉及一种背光模组及液晶显示装置。
 背景技术
在传统液晶显示装置的背板与中框装配过程中，中框一侧的螺钉孔为通孔，首先将背板与中框对齐装配，再从背板外侧将螺钉拧紧，该装配方案在组装显示屏之后，存在划伤显示屏的风险，且在拧紧螺钉的过程中容易造成中框划伤，且由于背板和中框的整体为向外侧凸出，从外侧拧紧螺钉的力矩过大锁紧时易造成中框和背板局部变形，易导致背板和中框损坏，降低液晶显示装置的使用寿命，在背板和中框装配完成后，背板外侧外观面裸漏螺丝帽，影响美观。
 技术解决方案
本申请的主要目的是提出一种背光模组及液晶显示装置，旨在解决现有技术中在液晶显示装置的背板与中框的装配过程中，采用从背板外侧将螺钉拧紧的方式存在的划伤显示屏以及造成中框和背板局部变形等的问题。
为实现上述目的，本申请提出一种背光模组，所述背光模组包括背板和中框，所述中框覆盖在所述背板的边缘，以遮挡所述背板的边缘；所述背板的边缘开设有螺纹通孔，所述中框内侧对应所述螺纹通孔的位置开设有螺纹盲孔，所述螺纹通孔和所述螺纹盲孔通过螺纹紧固件连接，以将所述中框与所述背板可拆卸连接。
在一实施例中，所述中框包括中框主体和连接在中框主体外部的第一延伸部，所述第一延伸部与所述中框主体之间形成安装槽，所述螺纹盲孔开设在所述第一延伸部的内侧，所述背板的边缘置于所述安装槽内，并与所述第一延伸部通过所述螺纹紧固件可拆卸连接。
在一实施例中，所述中框主体还设置有第二延伸部，所述第一延伸部、所述中框主体与所述第二延伸部围设成所述安装槽；所述背板的边缘形成有卡扣，所述卡扣与所述安装槽卡接配合。
在一实施例中，所述卡扣包括依次连接的第一卡接段、连接段和第二卡接段，所述第一卡接段与所述第一延伸部抵紧，且所述螺纹通孔开设在所述第一连接段上，所述连接段与所述中框主体抵紧，所述第二连接段与所述第二延伸部抵紧。
在一实施例中，所述背板的天侧和左右两侧均覆盖有所述中框，所述背板的天侧和左右两侧均与所述中框通过所述螺纹紧固件可拆卸连接。
在一实施例中，所述背光模组还包括扩散板，所述扩散板设置于所述背板内侧，所述背板的地侧设置有支撑块，所述支撑块与所述扩散板抵接并制成所述扩散板。
在一实施例中，所述支撑块由所述背板的地侧折弯形成。
在一实施例中，所述支撑块的数量为多个，多个所述支撑块沿所述背板的地侧的延伸方向间隔排布。
在一实施例中，所述背板和所述中框均为一体成型制件。
本申请还提出一种液晶显示装置，所述液晶显示装置包括如上所述的背光模组。
本申请的背光模组，在中框的内侧攻牙，形成螺纹盲孔，在背板和中框的装配过程中，首先将背板放平，再将中框沿着背板的左右两侧位置整个推入，直到中框上的螺纹盲孔和背板上的螺纹通孔对齐，最后用螺钉刀将背板和中框锁紧。本申请的背光模组在安装显示屏之前将背板和中框装配完成，有效避免了螺钉将屏幕划伤的风险，同时由于中框上开设的螺纹孔为螺纹盲孔，背板外侧表面没有裸露螺钉帽，外观简洁美观，也防止了螺钉将中框划伤的风险，且螺钉从背板内侧拧紧，顺应了背板和中框向背板外侧的凸出结构，装配方式合理，装配完成后背板外侧平滑整齐，有效防止了中框和背板的局部变形，保证了中框和背板的整体受力均匀，避免了背板和中框因受力不均易损坏的风险，从而提升了液晶显示装置的使用寿命。
 附图说明
为了更清楚地说明本申请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申请的一些实施例，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示出的结构获得其他的附图。
图1为本申请一实施例背光模组的内侧立体示意图；
图2为图1中A区域放大示意图；
图3为本申请一实施例背光模组的外侧立体示意图；
图4为本申请一实施例背光模组的截面示意图；
图5为本申请一实施例背光模组的内侧立体示意图；
图6为图5中B区域放大示意图。
附图标号说明：
标号 名称 标号 名称
1 背板 21 螺纹盲孔
11 螺纹通孔 22 安装槽
12 卡扣 221 第一延伸部
121 第一卡接段 222 第二延伸部
122 第二卡接段 223 中框主体
123 连接段 3 螺钉
13 支撑块 4 扩散板
2 中框    
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请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申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，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，都属于本申请保护的范围。
需要说明，若本申请实施例中有涉及方向性指示（诸如上、下、左、右、前、后……），则该方向性指示仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本申请实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
本申请中对“上”、“下”、“左”、“右”等方位的描述以图1、图2、图5中所示的方位为基准，仅用于解释在图1、图2、图5所示姿态下各部件之间的相对位置关系，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
本申请提出一种背光模组。
如图1至图6所示，本实施例中，背光模组包括背板1和中框2，中框2覆盖在背板1的边缘，以遮挡背板1的边缘；背板1的边缘开设有螺纹通孔11，中框2内侧对应螺纹通孔11的位置开设有螺纹盲孔21，螺纹通孔11和螺纹盲孔21通过螺纹紧固件连接，以将中框2与背板1可拆卸连接。本实施例中，螺纹紧固件为螺钉3。
具体地，本实施例的背光模组，在中框2的内侧攻牙，形成螺纹盲孔21，在背板1和中框2的装配过程中，首先将背板1放平，再将中框2沿着背板1的左右两侧位置整个推入，直到中框2上的螺纹盲孔21和背板1上的螺纹通孔11对齐，最后用螺钉3将背板1和中框2锁紧。本实施例的背光模组在安装显示屏之前将背板1和中框2装配完成，有效避免了螺钉3将屏幕划伤的风险，同时由于中框2上开设的螺纹孔为螺纹盲孔21，背板1外侧表面没有裸露螺钉帽，外观简洁美观，也防止了螺钉3将中框2划伤的风险，且螺钉3从背板1内侧拧紧，顺应了背板1和中框2向背板1外侧的凸出结构，装配方式合理，装配完成后背板1外侧平滑整齐，有效防止了中框2和背板1的局部变形，保证了中框2和背板1的整体受力均匀，避免了背板1和中框2因受力不均易损坏的风险，从而提升了液晶显示装置的使用寿命。
本实施例中，中框2包括中框主体223和连接在中框主体223的第一延伸部221，第一延伸部221与中框主体223之间形成安装槽22，螺纹盲孔21开设在第一延伸部221，背板1的边缘置于安装槽22内，并与第一延伸部221通过螺纹紧固件可拆卸连接。如图1至图4所示，第一延伸部221为安装槽22的槽壁，中框主体223为安装槽22的槽底，螺纹盲孔21开设在第一延伸部221上，螺纹通孔11开设在背板1边缘处，在背板1与中框2装配过程中，背板1外侧的边缘紧贴第一延伸部221推入，使得背板1边缘容置于安装槽22内，直到背板1边缘的螺纹通孔11与第一延伸部221上的螺纹盲孔21对齐，再从背板1内侧将螺钉3拧紧，结构合理，方便了中框2与背板1的装配。
进一步地，中框主体223还设置有第二延伸部222，第一延伸部221、中框主体223与第二延伸部222围设成安装槽22；背板1的边缘形成有卡扣12，卡扣12与安装槽22卡接配合。如图1至图4所示，第一延伸部221和第二延伸部222共同构成安装槽22两侧的槽壁，中框主体223为安装槽22的槽底，背板1边缘弯折形成与安装槽22配合的卡扣12，将安装槽22对准卡扣12，直接将中框2推入到背板1上，方便背板1与中框2的对位，提升了装配效率。
本实施例中，卡扣12包括依次连接的第一卡接段121、连极段123和第二卡接段122，第一卡接段121与第一延伸部221抵紧，且螺纹通孔11开设在第一卡接段121上，连极段123与中框主体223抵紧，第二卡接段122与第二延伸部222抵紧。如图1至图4所示，卡扣12与安装槽22抵紧配合，当螺钉3锁紧时，第一延伸部221与第一卡接段121始终相互抵紧配合，保证了背板1的整体平面度。
本实施例中，背板1的天侧和左右两侧均覆盖有中框2，背板1的天侧和左右两侧均与中框2通过螺纹紧固件可拆卸连接。如图1至图4所示，背板1上侧和左右两侧边缘均开设有间隔布置的多个螺纹通孔11，中框2内侧开设有与多个螺纹通孔11对应的螺纹盲孔21。在背板1和中框2装配时，首先将中框2左右两侧的安装槽22分别对准背板1左右两侧卡扣12，然后直接将中框2沿背板1的左右两侧推入到背板1上，再将中框2上侧的安装槽22卡接上背板1上侧的卡扣12，最后分别将多个螺纹通孔11和螺纹盲孔21通过螺钉3拧紧，完成背板1和中框2的装配，装配简单方便，且中框2与背板1紧密配合，提升了背光模组的整体稳定性。
本实施例中，背板模组还包括扩散板4，扩散板4设置于背板1内侧，背板1的地侧设置有支撑块13，支撑块13与扩散板4抵接并制成扩散板4。如图5和图6所示，背板1下侧设置有用于支撑扩散板4的支撑块13，可以直接将扩散板4搭接在支撑块13上，无需设置下中框组件，省掉了下中框组件的同时，简化了装配过程，结构件的减少不仅使得背光模组的装配过程更加简单，且降低了装配累计误差，提升了装配效率，同时节省了材料成本。
本实施例中，支撑块13由背板1的地侧折弯形成。如图5和图6所示，支撑块13位背板1下侧边缘向背板1内侧折弯形成，结构设计合理，无需加入新的装配组件，只需将背板1进行一些改造即可，方便生产制造和安装。
本实施例中，如图5和图6所示，支撑块13的数量为多个，多个支撑块13沿背板1的地侧的延伸方向间隔排布。多个支撑块13将扩散板4支撑，使得多个支撑块13受力均匀，避免了单个支撑块13受力过大断裂的风险，同时保证了扩散板4的平衡，结构设计合理。
本实施例中，背板1和中框2均为一体成型制件。方便了背板1和中框2的制造，直接将中框2推入背板1上即可完成安装，降低了背光模组的装配难度，同时也降低了背光模组的装配累计误差，提升了背光模组的整体稳定性。
本申请还提出一种液晶显示装置，该液晶显示装置包括上述的背光模组。由于液晶显示装置采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
以上仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是在本申请的申请构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (20)

  1. 一种背光模组，其中，所述背光模组包括背板和中框，所述中框覆盖在所述背板的边缘，以遮挡所述背板的边缘；所述背板的边缘开设有螺纹通孔，所述中框内侧对应所述螺纹通孔的位置开设有螺纹盲孔，所述螺纹通孔和所述螺纹盲孔通过螺纹紧固件连接，以将所述中框与所述背板可拆卸连接。
  2. 如权利要求1所述的背光模组，其中，所述中框包括中框主体和连接在中框主体外部的第一延伸部，所述第一延伸部与所述中框主体之间形成安装槽，所述螺纹盲孔开设在所述第一延伸部的内侧，所述背板的边缘置于所述安装槽内，并与所述第一延伸部通过所述螺纹紧固件可拆卸连接。
  3. 如权利要求2所述的背光模组，其中，所述中框主体还设置有第二延伸部，所述第一延伸部、所述中框主体与所述第二延伸部围设成所述安装槽；所述背板的边缘形成有卡扣，所述卡扣与所述安装槽卡接配合。
  4. 如权利要求3所述的背光模组，其中，所述卡扣包括依次连接的第一卡接段、连接段和第二卡接段，所述第一卡接段与所述第一延伸部抵紧，且所述螺纹通孔开设在所述第一连接段上，所述连接段与所述中框主体抵紧，所述第二连接段与所述第二延伸部抵紧。
  5. 如权利要求1所述的背光模组，其中，所述背板的天侧和左右两侧均覆盖有所述中框，所述背板的天侧和左右两侧均与所述中框通过所述螺纹紧固件可拆卸连接。
  6. 如权利要求3所述的背光模组，其中，所述背光模组还包括扩散板，所述扩散板设置于所述背板内侧，所述背板的地侧设置有支撑块，所述支撑块与所述扩散板抵接并制成所述扩散板。
  7. 如权利要求4所述的背光模组，其中，所述支撑块由所述背板的地侧折弯形成。
  8. 如权利要求4所述的背光模组，其中，所述支撑块的数量为多个，多个所述支撑块沿所述背板的地侧的延伸方向间隔排布。
  9. 如权利要求4所述的背光模组，其中，所述背板和所述中框均为一体成型制件。
  10. 如权利要求1所述的背光模组，其中，所述背板上侧和左右两侧边缘均开设有间隔布置的多个螺纹通孔，所述中框内侧开设有与所述多个螺纹通孔对应的螺纹盲孔。
  11. 一种液晶显示装置，其中，所述液晶显示装置包括背光模组，所述背光模组包括背板和中框，所述中框覆盖在所述背板的边缘，以遮挡所述背板的边缘；所述背板的边缘开设有螺纹通孔，所述中框内侧对应所述螺纹通孔的位置开设有螺纹盲孔，所述螺纹通孔和所述螺纹盲孔通过螺纹紧固件连接，以将所述中框与所述背板可拆卸连接。
  12. 如权利要求11所述的液晶显示装置，其中，所述中框包括中框主体和连接在中框主体外部的第一延伸部，所述第一延伸部与所述中框主体之间形成安装槽，所述螺纹盲孔开设在所述第一延伸部的内侧，所述背板的边缘置于所述安装槽内，并与所述第一延伸部通过所述螺纹紧固件可拆卸连接。
  13. 如权利要求12所述的液晶显示装置，其中，所述中框主体还设置有第二延伸部，所述第一延伸部、所述中框主体与所述第二延伸部围设成所述安装槽；所述背板的边缘形成有卡扣，所述卡扣与所述安装槽卡接配合。
  14. 如权利要求13所述的液晶显示装置，其中，所述卡扣包括依次连接的第一卡接段、连接段和第二卡接段，所述第一卡接段与所述第一延伸部抵紧，且所述螺纹通孔开设在所述第一连接段上，所述连接段与所述中框主体抵紧，所述第二连接段与所述第二延伸部抵紧。
  15. 如权利要求11所述的液晶显示装置，其中，所述背板的天侧和左右两侧均覆盖有所述中框，所述背板的天侧和左右两侧均与所述中框通过所述螺纹紧固件可拆卸连接。
  16. 如权利要求13所述的液晶显示装置，其中，所述背光模组还包括扩散板，所述扩散板设置于所述背板内侧，所述背板的地侧设置有支撑块，所述支撑块与所述扩散板抵接并制成所述扩散板。
  17. 如权利要求14所述的液晶显示装置，其中，所述支撑块由所述背板的地侧折弯形成。
  18. 如权利要求14所述的液晶显示装置，其中，所述支撑块的数量为多个，多个所述支撑块沿所述背板的地侧的延伸方向间隔排布。
  19. 如权利要求14所述的液晶显示装置，其中，所述背板和所述中框均为一体成型制件。
  20. 如权利要求11所述的液晶显示装置，其中，所述背板上侧和左右两侧边缘均开设有间隔布置的多个螺纹通孔，所述中框内侧开设有与所述多个螺纹通孔对应的螺纹盲孔。
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