WO2014043941A1 - 一种背光模组及液晶显示装置 - Google Patents

一种背光模组及液晶显示装置 Download PDF

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Publication number
WO2014043941A1
WO2014043941A1 PCT/CN2012/082288 CN2012082288W WO2014043941A1 WO 2014043941 A1 WO2014043941 A1 WO 2014043941A1 CN 2012082288 W CN2012082288 W CN 2012082288W WO 2014043941 A1 WO2014043941 A1 WO 2014043941A1
Authority
WO
WIPO (PCT)
Prior art keywords
light guide
guide plate
middle frame
backlight module
fixing hole
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/CN2012/082288
Other languages
English (en)
French (fr)
Inventor
郭仪正
陈仕祥
俞刚
周革革
王甲强
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
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.)
Filing date
Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US13/643,548 priority Critical patent/US20140085934A1/en
Publication of WO2014043941A1 publication Critical patent/WO2014043941A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G02F1/133308—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
    • G02F1/133308—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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/46—Fixing elements

Definitions

  • the invention belongs to the field of liquid crystal display, and more particularly to a backlight module and a liquid crystal display device.
  • a conventional liquid crystal display device generally includes a front frame 1, a liquid crystal display panel 2, a middle frame 3, a light guide plate 4, a back plate 5, and the like, and an optical film is attached to the light guide plate 4, wherein the front frame 1.
  • the middle frame 3 and the back plate 5 respectively have different functions.
  • the front frame 1 is mainly used for fixing the liquid crystal display panel 2 and preventing it from jumping.
  • the back plate 5 is mainly used for carrying the optical film, the light guide plate 4, the light bar, and the like.
  • the middle frame 3 is mainly used for fixing the optical components such as the light guide plate 4 and the optical film together with the back plate 5, and simultaneously carrying the liquid crystal display panel 2, the back plate 5, the middle frame 3, and the light guide plate fixed by the two. 4.
  • the structure of the optical film and the light bar constitutes a backlight module.
  • the existing light guide plate is pressed into the back plate by the middle frame, the backlight module and the liquid crystal display panel are fixed by the front frame, and the backlight module also needs to be transported as an intermediate product.
  • the light guide plate is only in the middle.
  • the box performs a fixed limit. Due to the assembly and part tolerance factors, the middle frame does not have enough pressing force on the light guide plate. Therefore, during the transportation of the backlight module, the light guide plate may move up and down, or even tilt, which affects the optical quality.
  • the middle frame is no longer disposed in the backlight module, or the set middle frame no longer functions as a fixed light guide plate, and the fixing of the light guide plate during the transfer process becomes more Big problem.
  • the technical problem to be solved by the present invention is to provide a backlight module and a liquid crystal display device.
  • the light guide plate of the backlight module is well fixed in the vertical direction, thereby ensuring that the light guide plate is difficult to move during the transportation of the backlight module. , thus having a higher optical quality.
  • the technical solution of the present invention is: a backlight module, comprising a light guide plate and a back plate, the back plate including a side wall And the bottom wall, the light guide plate is disposed in the back plate, the backlight module further includes a fixing member, the light guide plate is provided with a first fixing hole, and the second fixing hole is disposed on the side wall or the bottom wall of the back plate
  • the fixing member passes through the first fixing hole on the light guide plate and the second fixing hole on the back plate to fix the light guide plate on the back plate.
  • the fixing member comprises a head end and a tail end, and the head end and the tail end are connected by a snap structure, and the snap connection is installed quickly, thereby improving assembly efficiency.
  • the fixing member is provided with a third fixing hole on the head end, a buckle is arranged on the side of the tail end, and the buckle is inserted into the third fixing hole of the head end to connect the head end and the tail end.
  • the fixing member has a rectangular cross section, and the third fixing hole on the fixing member is rectangular, and the cross section of the fixing end is also rectangular, so that the fixing member can closely fit the surface of the light guide plate and the back plate, and Good to play a fixed role.
  • the fixing member is a white or colorless transparent plastic member to avoid interference with the optical performance of the light guide plate.
  • the backlight module further includes a middle frame, the middle frame is disposed above the light guide plate, the middle frame includes a plurality of component units, and spacing between adjacent component units is provided, and the fixing component is disposed adjacent to Between the middle frame member units.
  • the component unit comprises a frame corner member distributed at four corners of the backboard, or the component unit comprises a frame edge member distributed on four sides of the backboard.
  • a second fixing hole is disposed on the side wall or the bottom wall of the back plate by providing a first fixing hole on the light guiding plate, and the fixing member fixes the light guide plate through the first fixing hole and the second fixing hole.
  • the light guide plate is prevented from moving up and down in the vertical direction, and the light guide plate can be prevented from moving or tilting even during demanding transportation, thereby ensuring the optical quality of the backlight module.
  • the middle frame does not have to function as a fixed light guide plate and an optical film, it can be tubular into a segmented structure, and even the middle frame can be eliminated to refine the structure of the liquid crystal display device.
  • a liquid crystal display device comprising the backlight module described above.
  • the invention also discloses another technical solution: a liquid crystal display device comprising a light guide plate and a back plate,
  • the back plate includes a side wall, and the light guide plate is disposed in the back plate.
  • the light guide plate is provided with a first fixing hole, and the second fixing hole is disposed on the side wall or the bottom wall of the back plate.
  • the liquid crystal display device has no middle frame.
  • the liquid crystal display device comprises a middle frame, the middle frame is disposed above the light guide plate, the middle frame comprises a plurality of component units, and a spacing between adjacent component units is provided, and the fixing component is disposed adjacent to the middle Between the frame member units.
  • the fixing member described above can also be used only during the transportation of the backlight module, and is removed when assembled into a liquid crystal display device, and the light guide plate can be pressed and fixed by other components above, such as a liquid crystal display panel, so that the back is fixed.
  • a first fixing hole is left on the side wall or the bottom wall of the board, and a second fixing hole is left on the light guiding board.
  • FIG. 1 is a schematic structural view of a liquid crystal display device in the prior art
  • FIG. 2 is a schematic perspective view of a first embodiment of a backlight module according to the present invention.
  • FIG. 3 is a partial cross-sectional view showing a first embodiment of the backlight module of the present invention.
  • FIG. 4 is a schematic structural view of a fixing member in the first embodiment of the backlight module of the present invention.
  • FIG. 5 is a schematic perspective view of a second embodiment of a backlight module according to the present invention.
  • FIG. 6 is a partial cross-sectional view showing a third embodiment of the backlight module of the present invention.
  • FIG. 7 is a partial cross-sectional view showing a fourth embodiment of the backlight module of the present invention.
  • the present invention discloses a liquid crystal display device, including a backlight module, as a first embodiment of the backlight module of the present invention.
  • the backlight module includes a light guide plate 4 and a back plate 5, and a back plate. 5 includes a side wall 51 and a bottom wall 52, the light guide plate 4 is disposed in the back plate 5, the backlight module further includes a fixing member 6, and the light guide plate 4 is provided with a first fixing hole 41, the back plate bottom A second fixing hole 53 is defined in the wall 52.
  • the fixing member 6 passes through the first fixing hole 41 on the light guide plate 4 and the second fixing hole 53 on the back plate.
  • the light plate 4 is fixed to the back plate 5.
  • the present invention provides a second fixing hole 53 on the side wall or the bottom wall of the back plate by providing a first fixing hole 41 on the light guide plate, and the fixing member 6 passes through the first fixing hole 41 and the second fixing hole 53 to guide the light guide plate 4. It is fixed on the backboard 5, thereby preventing the light guide plate 4 from moving up and down in the vertical direction, and ensuring that the light guide plate 4 does not move or tilt during the demanding transportation process, thereby ensuring the backlight module
  • the number of the fixing members 6 is four, and is distributed in the central portion of the four side walls of the back plate 5.
  • the light guide plate 4 can obtain a balanced fixing force, and the number of the fixing members 6 is required according to actual needs.
  • the position can be set freely.
  • the backlight module further includes a middle frame 3, and the middle frame 3 is disposed above the light guide plate 4.
  • the middle frame 3 includes a plurality of component units, and a spacing is provided between adjacent component units.
  • the fixing member 6 is disposed between adjacent component units.
  • the component unit includes a frame corner member 31 distributed in four corners of the backboard 5, because the middle frame 3 is a segmented structure, and adjacent frame corners There is a gap between the members 31, so the fixing force of the light guide plate 4 also has a risk of insufficient.
  • the fixing member 6 disposed on the back plate 5 can fix the light guide plate 4, preventing the light guide plate 4 from moving up and down in the vertical direction, even in In the demanding transportation process, the light guide plate 4 can also be ensured that the light guide plate 4 does not move or tilt, thereby ensuring the optical port of the backlight module.
  • the backlight module When the backlight module is no longer provided with the middle frame, or the set middle frame no longer functions as a fixed light guide plate, it is more prone to the insufficient pressure of the light guide plate mentioned in the background art, or even no pressing force, in transportation and During use, the light guide plate may move up and down, even tilting, and the present invention uses a fixing member to prevent the light guide plate from moving up and down in the vertical direction, even if the middle frame is not provided, or the set middle frame is no longer fixed to the light guide plate. When it works, it still solves this technical problem well.
  • the fixing member 6 includes a head end 61 and a tail end 62.
  • the head end 61 and the tail end 62 are connected by a snap structure. More specifically, the head end 61 of the fixing member is provided with a third fixing.
  • the hole 611 has a buckle 621 on the side of the tail end 62.
  • the buckle 621 is inserted into the third fixing hole 611 of the head end to connect the head end 61 and the tail end 62.
  • the snap connection is quick to install, and the assembly efficiency can be improved.
  • the fixing member 6 has a rectangular cross section
  • the third fixing hole 611 on the fixing member 6 has a rectangular shape
  • the tail end 62 has a rectangular cross section, so that the fixing member 6 and the light guide plate can be used. 4 and the surface of the backing plate 5 closely fits to better serve the fixing.
  • the fixing member 6 is a white or colorless transparent plastic member to avoid interference with the optical performance of the light guide plate 4.
  • the component unit includes a frame member 32 distributed on four sides of the backboard, and adjacent frame members. There is a spacing between 32.
  • Other structures and achievable advantages of this embodiment are the same as those of the embodiment, and will not be described here.
  • the middle frame may also be composed of a frame corner member and a frame edge member.
  • the frame corner members are distributed at four corners of the backboard, and the frame edge members are distributed on the four sides of the backboard.
  • the fixing member is distributed between adjacent component units to achieve the purpose of fixing the light guide plate.
  • the difference from the first embodiment is that a second fixing hole 53 is disposed on the side wall 51 of the backboard, and the fixing member passes through the light guide plate.
  • the first fixing hole 41 and the second fixing hole 53 on the back plate fix the light guide plate 4 on the back plate.
  • the structure can be adopted.
  • Other structures and energy in this embodiment The beneficial effects achieved are the same as the examples - and will not be described here.
  • the first embodiment has a second fixing hole 53 , and the fixing member is different from the first embodiment.
  • the light guide plate is fixed on the back plate through the first fixing hole 41 on the light guide plate and the second fixing hole 53 on the back plate.
  • the fixing member surrounds the entire back plate side wall 51.
  • the light guide plate may have a certain moving space in the vertical direction, and the second fixing hole 53 is disposed in the middle of the back side wall 51, so that the fixing member can better fix the light guide plate, and the second fixing hole 53 is close to the height of the light guide plate.
  • the fixing effect is better, and other structures and achievable beneficial effects of the embodiment are the same as those of the embodiment, and will not be described herein.
  • the light guide plate 4 and the back plate 5 are included.
  • the back plate 5 includes a side wall 51 and a bottom wall 52.
  • the light guide plate 4 is disposed in the back plate 5, and the light guide plate 4 is disposed on the light guide plate 4.
  • First fixing hole The second fixing hole 53 is disposed on the side wall or the bottom wall of the backboard.
  • the fixing member 6 described above can be used only during the transportation of the backlight module, and is removed when assembled into a liquid crystal display device.
  • the light guide plate 4 can be pressed and fixed by other components above, such as a liquid crystal display panel. Therefore, a second fixing hole 53 is left on the side wall or the bottom wall of the back plate, and a first fixing hole 41 is left on the light guide plate 4.
  • the liquid crystal display device uses a segmented middle frame whether the middle frame is not used, that is, the middle frame includes a plurality of component units, and a spacing is provided between adjacent component units.
  • the fixing member is disposed between the adjacent middle frame member units, and can ensure that the light guide plate does not move during transportation, thereby ensuring the optical quality of the backlight module.

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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)
  • Planar Illumination Modules (AREA)

Description

【技术领域】
本发明属于液晶显示领域， 更具体的说， 涉及一种背光模组及液晶显示装 置。
【背景技术】
如图 1所示，现有液晶显示装置一般包括前框 1、液晶显示面板 2、中框 3、 导光板 4、 背板 5等部件， 导光板 4上还附有光学膜片， 其中前框 1、 中框 3和 背板 5分别具有不同的功能， 前框 1主要用于固定液晶显示面板 2并防止其跳 脱， 背板 5主要用于承载光学膜片、 导光板 4、 灯条等部件， 而中框 3主要用于 和背板 5—起固定导光板 4、 光学膜片等光学组件， 同时承载液晶显示面板 2, 背板 5、 中框 3和由此两者固定的导光板 4、 光学膜片和灯条等结构构成了背光 模组。
现有的导光板是被中框压紧在背板内， 背光模组和液晶显示面板由前框固 定， 背光模组作为中间产品也需要进行转运， 在其运输过程中， 导光板仅由中 框进行固定限位。 由于装配及零件公差的因素， 有时会导致中框对导光板的压 紧力不够， 这样背光模组在运输过程中， 导光板可能会上下移动位置， 甚至倾 斜， 影响光学品质。 又或者， 如果希望对液晶显示装置的结构进行筒化， 背光 模组中不再设置中框， 或设置的中框不再起固定导光板的作用时， 在转运过程 中对导光板的固定成为较大的问题。
【发明内容】
本发明所要解决的技术问题是提供一种背光模组及液晶显示装置， 所述背 光模组的导光板在垂直方向被很好地固定， 从而能保证背光模组在运输过程中 导光板不易移动， 从而具有较高的光学品质。
本发明的技术方案为： 一种背光模组， 包括导光板和背板， 背板包括侧壁 和底壁， 所述导光板设置在背板内， 背光模组还包括固定件， 所述导光板上设 有第一固定孔， 所述背板侧壁或底壁上设有第二固定孔， 所述固定件穿过导光 板上的第一固定孔和背板上的第二固定孔把导光板固定在背板上。
优选的， 所述固定件包括头端和尾端， 头端和尾端通过卡扣结构连接， 卡 扣连接安装快速， 可以提高装配效率。
优选的， 所述固定件的头端上设有第三固定孔， 所述尾端侧面设有卡扣， 所述卡扣插入头端的第三固定孔， 使头端和尾端连接。
优选的， 所述固定件的横截面为矩形， 固定件上的第三固定孔为矩形， 尾 端的横截面也为矩形， 这样可以使固定件与导光板和背板表面紧密地贴合， 更 好地起到固定作用。
优选的， 所述固定件为白色或无色透明的塑料件， 以免对导光板的光学性 能产生干扰。
优选的， 所述背光模组还包括中框， 所述中框设置在导光板上方， 中框包 括多个构件单元， 相邻的构件单元之间设有间距， 所述固定件设置在相邻中框 构件单元之间。
优选的， 所述构件单元包括框角构件， 分布在背板的四个角落， 或者所述 构件单元包括框边构件， 分布在背板的四个边上。
本发明的有益效果为： 通过在导光板上设置第一固定孔， 在背板侧壁或底 壁上设置第二固定孔， 固定件穿过第一固定孔和第二固定孔把导光板固定在背 板上， 从而防止导光板在垂直方向上下移动， 即使在要求严苛的运输过程中， 也能保证导光板不移动、 不倾斜， 从而很好地保证了背光模组的光学品质。 由 于中框不必再起到固定导光板和光学膜片的作用， 所以可以筒化为分段式结构， 甚至可以取消中框， 以筒化液晶显示装置的结构。
本发明还公开了另一种技术方案： 一种液晶显示装置， 包括上面所述的背 光模组。
本发明还公开了另一种技术方案： 一种液晶显示装置， 包括导光板和背板， 背板包括侧壁， 所述导光板设置在背板内， 所述导光板上设有第一固定孔， 所 述背板侧壁或底壁上设有第二固定孔。
优选的， 所述液晶显示装置无中框。
优选的， 所述液晶显示装置包括中框， 所述中框设置在导光板上方， 中框 包括多个构件单元， 相邻的构件单元之间设有间距， 所述固定件设置在相邻中 框构件单元之间。
上面所述的固定件也可以仅仅在背光模组的运输过程中使用， 而在组装成 液晶显示装置时被去除， 导光板可通过上方的其他部件， 如液晶显示面板压紧 固定， 故在背板侧壁或底壁上遗留有第一固定孔， 在导光板上遗留有第二固定 孔。
【附图说明】
图 1是现有技术中液晶显示装置的结构示意图；
图 2是本发明所述背光模组实施例一的立体结构示意图；
图 3是本发明所述背光模组实施例一的局部剖示图；
图 4是本发明所述背光模组实施例一中固定件的结构示意图；
图 5是本发明所述背光模组实施例二的立体结构示意图；
图 6是本发明所述背光模组实施例三的局部剖示图；
图 7是本发明所述背光模组实施例四的局部剖示图。
【具体实施方式】
本发明公开一种液晶显示装置， 包括背光模组， 作为本发明背光模组的实 施例一， 如图 2至图 4所示， 所述背光模组包括导光板 4和背板 5 , 背板 5包括 侧壁 51和底壁 52, 所述导光板 4设置在背板 5内， 背光模组还包括固定件 6, 所述导光板 4上设有第一固定孔 41 , 所述背板底壁 52上设有第二固定孔 53 , 所述固定件 6穿过导光板 4上的第一固定孔 41和背板上的第二固定孔 53把导 光板 4固定在背板 5上。
本发明通过在导光板上设置第一固定孔 41 , 在背板侧壁或底壁上设置第二 固定孔 53 , 固定件 6穿过第一固定孔 41和第二固定孔 53把导光板 4固定在背 板 5上， 从而防止导光板 4在垂直方向上下移动， 即使在要求严苛的运输过程 中， 也能保证导光板 4 不移动、 不倾斜， 从而 ^艮好地保证了背光模组的光学品 本实施例中， 所述固定件 6数量为四个， 分布在背板 5四个侧壁的中部区 域， 导光板 4可以得到均衡的固定力， 根据实际需要固定件 6的数量及位置可 以自由设置。
本实施例中，所述背光模组还包括中框 3 ,所述中框 3设置在导光板 4上方， 中框 3 包括多个构件单元， 相邻的构件单元之间设有间距， 所述固定件 6设置 在相邻的构件单元之间， 具体的， 所述构件单元包括框角构件 31 , 分布在背板 5的四个角落， 由于中框 3为分段式结构， 相邻框角构件 31之间都存在间距， 所以导光板 4的固定力同样存在不足的风险， 设置在背板 5上的固定件 6可以 固定住导光板 4, 防止导光板 4在垂直方向上下移动， 即使在要求严苛的运输过 程中， 也能保证导光板 4不移动、 不倾斜， 从而很好地保证了背光模组的光学 口口 臾
部分背光模组不再设置中框， 或设置的中框不再起固定导光板的作用时， 更容易出现背景技术中提到的导光板的压紧力不够， 甚至无压紧力， 在运输及 使用过程中， 导光板可能会上下移动位置， 甚至倾斜的问题， 而本发明采用固 定件来防止导光板在垂直方向上下移动， 即使不设置中框， 或设置的中框不再 起固定导光板的作用时， 依然能很好地解决此技术问题。
本实施例中，所述固定件 6包括头端 61和尾端 62, 头端 61和尾端 62通过 卡扣结构连接， 更具体的， 所述固定件的头端 61上设有第三固定孔 611 , 所述 尾端 62侧面设有卡扣 621 , 所述卡扣 621插入头端的第三固定孔 611 , 使头端 61和尾端 62连接， 卡扣连接安装快速， 可以提高装配效率。 本实施例中， 所述固定件 6的横截面为矩形， 所述固定件 6上的第三固定 孔 611为矩形， 尾端 62的横截面也为矩形， 这样可以使固定件 6与导光板 4和 背板 5表面紧密地贴合， 更好地起到固定作用。
本实施例中， 所述固定件 6为白色或无色透明的塑料件， 以免对导光板 4 的光学性能产生干扰。
作为本发明背光模组的实施例二， 如图 5所示， 与实施例一不同之处在于 所述构件单元包括框边构件 32, 分布在背板的四个边上， 相邻框边构件 32之间 存在间距， 本实施例其它结构及能达到的有益效果均与实施例——致， 此处不 再赘述。
当然， 在上面所有实施例中， 所述中框还可以由框角构件和框边构件共同 组成， 框角构件分布在背板的四个角落， 框边构件分布在背板的四个边上， 固 定件分布在相邻构件单元之间， 来实现固定导光板的目的。
作为本发明背光模组的实施例三， 如图 6所示， 与实施例一不同之处在于 所述背板侧壁 51上设有第二固定孔 53 ,所述固定件穿过导光板上的第一固定孔 41和背板上的第二固定孔 53把导光板 4固定在背板上， 当背板底部不适合设置 开孔时， 就可以采用此结构， 本实施例其它结构及能达到的有益效果均与实施 例——致， 此处不再赘述。
作为本发明背光模组的实施例四， 如图 7所示， 与实施例一不同之处在于 所述背板侧壁 51和底壁 52上均设有第二固定孔 53 , 所述固定件穿过导光板上 的第一固定孔 41和背板上的第二固定孔 53把导光板固定在背板上， 当背板侧 壁 51较高， 固定件环绕整个背板侧壁 51时， 导光板在垂直方向上可能会存在 一定的移动空间， 在背板侧壁 51中部设置第二固定孔 53 , 可以使固定件更好地 固定导光板， 第二固定孔 53与导光板的高度接近时， 固定效果更好， 本实施例 其它结构及能达到的有益效果均与实施例——致， 此处不再赘述。
作为液晶显示装置另一实施例， 包括导光板 4和背板 5 , 背板 5 包括侧壁 51和底壁 52, 所述导光板 4设置在背板 5内， 所述导光板 4上设有第一固定孔 41 , 所述背板侧壁或底壁上设有第二固定孔 53 , 上面所述的固定件 6可以仅仅 在背光模组的运输过程中使用， 而在组装成液晶显示装置时被去除， 导光板 4 可通过上方的其他部件， 如液晶显示面板压紧固定， 故在背板侧壁或底壁上遗 留有第二固定孔 53 , 在导光板 4上遗留有第一固定孔 41。
在本实施例中， 所述液晶显示装置无论是不使用中框， 还是使用分段式中 框， 即所述中框包括多个构件单元， 相邻的构件单元之间设有间距， 所述固定 件设置在相邻中框构件单元之间， 都能在运输过程中保证导光板不移动， 从而 保证背光模组的光学品质。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明， 不 能认定本发明的具体实施只局限于这些说明。 对于本发明所属技术领域的普通 技术人员来说， 在不脱离本发明构思的前提下， 还可以做出若干筒单推演或替 换， 都应当视为属于本发明的保护范围。

Claims

权利要求
1、 一种背光模组， 包括导光板和背板， 背板包括侧壁和底壁， 所述导光板 设置在背板内， 背光模组还包括固定件， 所述导光板上设有第一固定孔， 所述 背板侧壁或底壁上设有第二固定孔， 所述固定件穿过导光板上的第一固定孔和 背板上的第二固定孔把导光板固定在背板上。
2、 根据权利要求 1所述的背光模组， 其中， 所述固定件包括头端和尾端， 头端和尾端通过卡扣结构连接。
3、 根据权利要求 2所述的背光模组， 其中， 所述固定件的头端上设有第三 固定孔， 所述尾端侧面设有卡扣， 所述卡扣插入头端的第三固定孔， 使头端和 尾端连接。
4、 根据权利要求 3所述的背光模组， 其中， 所述固定件的横截面为矩形， 固定件上的第三固定孔为矩形， 尾端的横截面也为矩形。
5、 根据权利要求 1所述的背光模组， 其中， 所述固定件为白色或无色透明 的塑料件。
6、 根据权利要求 1所述的背光模组， 其中， 所述背光模组还包括中框， 所 述中框设置在导光板上方， 中框包括多个构件单元， 相邻的构件单元之间设有 间距， 所述固定件设置在相邻中框构件单元之间。
7、 如权利要求 6所述的背光模组， 其中， 所述构件单元包括框角构件， 分 布在背板的四个角落， 或者所述构件单元包括框边构件， 分布在背板的四个边 上。
8、 一种液晶显示装置， 包括背光模组， 所述背光模组包括导光板和背板， 背板包括侧壁和底壁， 所述导光板设置在背板内， 背光模组还包括固定件， 所 述导光板上设有第一固定孔， 所述背板侧壁或底壁上设有第二固定孔， 所述固 定件穿过导光板上的第一固定孔和背板上的第二固定孔把导光板固定在背板 上。
9、 根据权利要求 8所述的液晶显示装置， 其中， 所述固定件包括头端和尾 端， 头端和尾端通过卡扣结构连接。
10、 根据权利要求 9所述的液晶显示装置， 其中， 所述固定件的头端上设 有第三固定孔， 所述尾端侧面设有卡扣， 所述卡扣插入头端的第三固定孔， 使 头端和尾端连接。
11、 根据权利要求 10所述的液晶显示装置， 其中， 所述固定件的横截面为 矩形， 固定件上的第三固定孔为矩形， 尾端的横截面也为矩形。
12、 根据权利要求 8所述的液晶显示装置， 其中， 所述固定件为白色或无 色透明的塑料件。
13、 根据权利要求 8所述的液晶显示装置， 其中， 所述背光模组还包括中 框， 所述中框设置在导光板上方， 中框包括多个构件单元， 相邻的构件单元之 间设有间距， 所述固定件设置在相邻中框构件单元之间。
14、 如权利要求 13所述的液晶显示装置， 其中， 所述构件单元包括框角构 件， 分布在背板的四个角落， 或者所述构件单元包括框边构件， 分布在背板的 四个边上。
15、 一种液晶显示装置， 包括导光板和背板， 背板包括侧壁， 所述导光板 设置在背板内， 所述导光板上设有第一固定孔， 所述背板侧壁或底壁上设有第 二固定孔。
16、 根据权利要求 15所述的液晶显示装置， 其中， 所述液晶显示装置无中 框； 或者包括中框， 所述中框设置在导光板上方， 中框包括多个构件单元， 相 邻的构件单元之间设有间距， 所述固定件设置在相邻中框构件单元之间。
17、 根据权利要求 15所述的液晶显示装置， 其中， 所述液晶显示装置包括 中框， 所述中框设置在导光板上方， 中框包括多个构件单元， 相邻的构件单元 之间设有间距， 所述固定件设置在相邻中框构件单元之间。
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Publication number Priority date Publication date Assignee Title
CN105508836A (zh) * 2015-12-17 2016-04-20 安徽康佳电子有限公司 一种无中框支架的电视机
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1959496A (zh) * 2005-11-03 2007-05-09 中华映管股份有限公司 利用锁定方式结合导光板与背板的侧光式背光模块
CN201706345U (zh) * 2010-07-02 2011-01-12 苏州向隆塑胶有限公司 背光模块以及液晶显示装置
CN101956938A (zh) * 2010-09-21 2011-01-26 友达光电（苏州）有限公司 背光模组以及液晶显示器
CN102182989A (zh) * 2011-04-21 2011-09-14 深圳市华星光电技术有限公司 用于背光模块的固定机构及背光模块
JP2012004067A (ja) * 2010-06-21 2012-01-05 Harison Toshiba Lighting Corp 面照明装置
WO2012077534A1 (ja) * 2010-12-06 2012-06-14 シャープ株式会社 照明装置およびこれを備えた液晶表示装置
CN102537866A (zh) * 2011-12-26 2012-07-04 达运精密工业（苏州）有限公司 定位装置及使用其的背光模组
CN102621727A (zh) * 2012-04-28 2012-08-01 深圳市华星光电技术有限公司 一种液晶显示装置及背光模块

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1959496A (zh) * 2005-11-03 2007-05-09 中华映管股份有限公司 利用锁定方式结合导光板与背板的侧光式背光模块
JP2012004067A (ja) * 2010-06-21 2012-01-05 Harison Toshiba Lighting Corp 面照明装置
CN201706345U (zh) * 2010-07-02 2011-01-12 苏州向隆塑胶有限公司 背光模块以及液晶显示装置
CN101956938A (zh) * 2010-09-21 2011-01-26 友达光电（苏州）有限公司 背光模组以及液晶显示器
WO2012077534A1 (ja) * 2010-12-06 2012-06-14 シャープ株式会社 照明装置およびこれを備えた液晶表示装置
CN102182989A (zh) * 2011-04-21 2011-09-14 深圳市华星光电技术有限公司 用于背光模块的固定机构及背光模块
CN102537866A (zh) * 2011-12-26 2012-07-04 达运精密工业（苏州）有限公司 定位装置及使用其的背光模组
CN102621727A (zh) * 2012-04-28 2012-08-01 深圳市华星光电技术有限公司 一种液晶显示装置及背光模块

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