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WO2013117020A1 - 一种背光模组和液晶显示装置 - Google Patents

一种背光模组和液晶显示装置 Download PDF

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Publication number
WO2013117020A1
WO2013117020A1 PCT/CN2012/071716 CN2012071716W WO2013117020A1 WO 2013117020 A1 WO2013117020 A1 WO 2013117020A1 CN 2012071716 W CN2012071716 W CN 2012071716W WO 2013117020 A1 WO2013117020 A1 WO 2013117020A1
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WO
WIPO (PCT)
Prior art keywords
positioning
backlight module
ear
positioning ear
guide plate
Prior art date
Application number
PCT/CN2012/071716
Other languages
English (en)
French (fr)
Inventor
黄冲
萧宇均
郭仪正
Original Assignee
深圳市华星光电技术有限公司
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Publication date
Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Publication of WO2013117020A1 publication Critical patent/WO2013117020A1/zh

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0081Mechanical 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
    • G02B6/0086Positioning aspects
    • G02B6/0088Positioning aspects of the light guide or other optical sheets in the package

Definitions

  • the present invention relates to the field of liquid crystal display, and more particularly to a backlight module and a liquid crystal display device.
  • a TFT-LCD liquid crystal display device mainly includes a component: a front bezel, a panel, and a backlight, and the panel and the backlight module are fixed by a front frame.
  • the backlight module includes the components from the bottom: the back plate and the optical component, and the optical component in turn includes a reflector, a light guide plate (LGP), an optical film, and the like.
  • a light guide plate of a display device is disclosed in the patent document US 2010/0296310 A1.
  • the light guide plate includes a light guide plate and a back plate.
  • the light guide plate cuts a plurality of grooves, and the back plate is provided with a groove.
  • the positioning of the positioning column, the light guide plate is fixed by the positioning column.
  • Patent Document CN1629694A discloses an optical film on June 22, 2005, which relates to an optical film adapted to be attached to a frame.
  • the optical film is mainly composed of a main body and at least one positioning portion.
  • the positioning portion protrudes from the edge of the body and corresponds to the positioning post on the frame. Further, the positioning portion has an opening that is located on an edge of the positioning portion and that is connected to the edge of the body. By changing the position of the opening, the optical film is prevented from falling off the frame.
  • the present invention can change the position of the opening formed on the positioning portion of the optical film, in addition to maintaining the yield of the optical film, and avoiding the optical film due to gravity factors, thereby making the optical film
  • the opening is detached from the fixing post of the frame, so that the optical film can be effectively fixed to the frame, thereby being more suitable for practical use.
  • the shortcomings of the existing optical components are mainly: secondary cutting of the optical components is required to process the positioning components, and cutting may cause a part of the material to be cut, thereby causing waste of material application.
  • the technical problem to be solved by the present invention is to provide a backlight module and a liquid crystal display device which reduce the waste of cutting of optical components.
  • a backlight module includes an optical component, and an edge of the optical component is fixed with a separate positioning ear for fixing the optical component, and the optical component is a light guide plate, a reflective sheet or an optical film.
  • the positioning ear and the optical component are fixed at one end as a root, and the other end opposite to the root is a fixing portion; the root of the positioning ear is fixedly connected to a side adjacent to the light emitting surface of the optical component.
  • the positioning ear is divided into two parts, and the root fixed with the optical component can adopt various fixing manners.
  • the fixing portion can also fix the positioning ear by using various fixing methods, and the two parts have various fixing schemes, which can be Flexible configuration for specific situations. Positioning the ear and the optical component on the same level does not increase the thickness of the optical component, which is beneficial to the slimness of the module. This technical solution is particularly suitable for the light guide plate.
  • the thickness of the positioning ear is consistent with the thickness of the optical component. This ensures that the contact area between the positioning ear and the light guide plate is maximized, and the thickness of the light guide plate is not additionally increased, which is advantageous for realizing the slimness of the liquid crystal display device.
  • the fixed end of the positioning ear and the light guide plate is a root portion, and the other end opposite to the root portion is a fixing portion; the side surface of the light guide plate is provided with a groove, and the root portion of the positioning ear is embedded in the groove for fixing.
  • the bottom width of the groove is larger than the width at the opening thereof; correspondingly, the root of the positioning ear is provided with a convex piece matching the bottom of the groove.
  • the bottom of the groove is wide and the opening is small, and the positioning of the ear root is matched to form a hook structure, which can effectively prevent the positioning ear from being detached from the horizontal direction, thereby further improving the reliability of the fixing.
  • the groove is a T-shaped groove. This is a specific bottom width, a small groove structure at the opening, and the lateral and vertical sides of the "T" are perpendicular to each other and have a high positioning strength.
  • the fixed end of the positioning ear and the light guide plate is a root portion, and the other end opposite to the root portion is a fixing portion; the fixing portion of the positioning ear is provided with a mounting hole.
  • the positioning ear can be fixed to the back plate or the frame of the liquid crystal display device by screw fixing, which is convenient to install and can be removed.
  • the positioning ear and the optical component are fixed at one end as a root, and the other end opposite to the root is a fixing portion; the root of the positioning ear is fixed at an edge of the light-emitting surface or the opposite surface of the light-emitting surface of the optical component.
  • This is a technical solution suitable for a reflective sheet or an optical film, such that the positioning of the ear and the bottom or top surface overlap, the overlap area between the two is large, and can be adjusted when fixed. In general, the larger the overlap area, the higher the fixing strength, and therefore the positioning of the ear and the optical component is more reliable.
  • the thickness of the positioning ear is consistent with the thickness of the reflective sheet or the optical film.
  • the thickness is equal, and the same material left after processing the reflective sheet or the optical film can be used as the ear, and the material is more economical.
  • a liquid crystal display device includes the above backlight module.
  • the optical component and the positioning portion thereof are separated, the optical component can be made into a regular rectangular structure, and the secondary cutting is not required to form the positioning component, thereby reducing material waste; and the positioning ear itself is relatively small and can be utilized.
  • the trimmed optical components are trimmed for processing.
  • Figure 1 is a schematic view of the present invention
  • Figure 2 is a schematic view of a first embodiment of the present invention
  • Figure 3 is a schematic view of the second embodiment of the present invention.
  • Figure 4 is a partially exploded perspective view of the second embodiment of the present invention.
  • Figure 5 is a partially enlarged schematic view of the second embodiment of the present invention.
  • Figure 6 is a cross-sectional view of the present invention taken along line X-X of Figure 5;
  • Figure 7 is a schematic view of the third embodiment of the present invention.
  • a liquid crystal display device includes a backlight module.
  • the backlight module includes an optical component 100.
  • the optical component 100 is fixed with an independent positioning ear 200.
  • the optical component can be any of a reflective sheet, an optical film, and a light guide plate.
  • the positioning ear 200 is a single small structural sheet, which may be selected from the same material as the optical component, or other materials such as PET, and then integrated with the optical component 100 by splicing, pasting, and the like.
  • the locating ear 200 includes a root 220 that is fixed to the optical assembly 100, and the other end opposite the root 220 is a fixed portion that securely positions the ear 200.
  • the positioning ear 200 is divided into two parts, and the root 220 fixed to the optical component can adopt various fixing manners. Similarly, the fixing portion can also fix the positioning ear 200 by using various fixing methods, and the two parts have various fixing schemes. , can be flexibly configured according to specific conditions.
  • the root portion 220 of the positioning ear 200 is directly fixed to the side adjacent to the light-emitting surface of the optical component 100 by means of pasting or the like.
  • the ear 200 and the optical component 100 are positioned on the same horizontal surface, especially when the thickness of the positioning ear is the same as the thickness of the optical component, so that the thickness of the optical component can be increased without increasing the connection strength, and is particularly suitable for the light guide plate.
  • the fixing is advantageous for realizing the slimness of the liquid crystal display device.
  • the fixing portion of the positioning ear 200 is provided with a mounting hole 210, so that the positioning ear 200 can be fixed to the back plate or the frame of the liquid crystal display device by means of screw fixing, and the installation is convenient and detachable.
  • a groove 110 may be disposed on the side of the optical component 100, and the root portion 220 of the positioning ear 200 is embedded in the groove 110 for fixing, thereby increasing the positioning of the ear 200 and the optical
  • the contact area of the assembly 100 can increase the fixing strength.
  • the bottom width of the groove 110 is larger than the width at the opening thereof.
  • the root portion 220 of the positioning ear 200 is provided with a convex shape matching the bottom of the groove 110.
  • the bottom of the groove 110 is wide and the opening is small, and the positioning ear 200 root 220 is fitted with a hook structure, which can effectively prevent the positioning ear 200 from being detached from the horizontal direction, further improving the reliability of the fixing, and fixing the fixing. For convenience.
  • the groove 110 may have a T-shaped structure, and the lateral and vertical sides of the "T" are perpendicular to each other and have a high positioning strength.
  • a wedge-shaped structure such as a wide bottom and a small opening.
  • the fixing portion of the positioning ear 200 is provided with a mounting hole 210, so that the positioning ear 200 can be fixed to the back plate or the frame of the liquid crystal display device by means of screw fixing, and the installation is convenient and detachable.
  • the root portion 220 of the positioning ear 200 is fixed on the light-emitting surface of the optical component 100 or the back surface edge of the light-emitting surface by means of pasting or the like, which is particularly suitable for a reflective sheet or an optical film.
  • the positioning of the ear 200 and the bottom or top surface are overlapped, and the overlapping area between the two is adjustable at a fixed time.
  • the larger the overlap area the higher the fixing strength, and therefore, the fixing of the positioning ear 200 and the optical component 100 is more reliable.
  • the reflective sheet and the optical film are both thin and the thickness of the positioning ear is not easily thinned, the same material remaining after processing the reflective sheet or the optical film can be used as an ear, and the material is more economical; 200 will coincide with the thickness of the reflective sheet or optical film.
  • the fixing portion of the positioning ear 200 is provided with a mounting hole 210, so that the positioning ear 200 can be fixed to the back plate or the frame of the liquid crystal display device by means of screw fixing, and the installation is convenient and detachable.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Planar Illumination Modules (AREA)

Abstract

一种背光模组及液晶显示装置,所述背光模组包括光学组件(100),所述光学组件(100)边缘固定有独立的用于固定光学组件(100)的定位耳朵(200),所述光学组件(100)为导光板、反射片或光学膜片。由于将光学组件(100)及其定位部件进行拆分,光学组件(100)可以做出规整的矩形结构,无需为了形成定位部件再进行二次裁切,减少了材料浪费;而定位耳朵(200)本身比较小,可以利用裁切后的光学组件(100)的边角料来加工。

Description

一种背光模组和液晶显示装置
【技术领域】
本发明涉及液晶显示领域, 更具体的说, 涉及一种背光模组和液晶显示装
【背景技术】
目前已知 TFT-LCD液晶显示装置主要包含部材:前框( Bezel )、面板( Panel ) 及背光(Back light )模组, 面板和背光模组之间通过前框进行固定。 而其中背 光模组从底部算起以此包括部材: 背板和光学组件, 光学组件又依次包括反射 片(Reflector), 导光板(LGP )、 光学膜片等。
专利文献 US2010/0296310A1于 2010年 11月 25日公开了一种显示装置的 导光板, 该导光板包括导光板、 背板, 导光板上裁切出多个 槽, 背板上设有 跟凹槽配合的定位柱, 导光板通过定位柱实现固定。
专利文献 CN1629694A于 2005年 6月 22日公开了一种光学膜片,该发明 是关于一种光学膜片, 适于固定在一框架上。 该光学膜片主要是由一主体及至 少一定位部所构成。 定位部凸伸于主体的边缘, 并与框架上的定位柱相对应。 此外, 定位部具有一开口, 该开口位于定位部的一边缘上, 且该边缘是与主体 的边缘相连接。 藉由改变开口的位置, 以避免光学膜片由框架上脱落。 本发明 藉由改变将光学膜片的定位部上所开设的开口的位置, 除了可维持光学膜片其 外形制作的良品率外, 并可避免光学膜片因重力因素, 而使光学膜片的开口与 框架的固定柱脱离, 进而使光学膜片可以有效的固定于框架上, 从而更加适于 实用。
现有的光学组件的缺点主要为: 需要对光学组件进行二次裁切, 以加工出 定位部件, 裁切会导致一部分材料会裁切掉, 进而导致材料应用浪费。
【发明内容】 本发明所要解决的技术问题是提供一种减少光学组件裁切浪费的背光模组 和液晶显示装置。
本发明的目的是通过以下技术方案来实现的:
一种背光模组, 包括光学组件, 所述光学组件边缘固定有独立的用于固定 光学组件的定位耳朵, 所述光学组件为导光板、 反射片或光学膜片。
优选的, 所述定位耳朵跟光学组件固定一端为根部, 与根部相对的另一端 为固定部; 所述定位耳朵的根部与所述光学组件的出光面相邻接的侧面固定连 接。 定位耳朵分为两个部分, 与光学组件固定的根部可以采用多种固定方式, 同样的, 固定部也可以采用多种固定方式来固定定位耳朵, 两个部分都有多种 固定方案, 可以根据具体情况灵活配置。 定位耳朵和光学组件在同一水平面上, 不会增加光学组件的厚度, 有利于实现模组的轻薄化, 该技术方案特别适合导 光板。
优选的, 所述定位耳朵的厚度跟所述光学组件的厚度一致。 这样可以保证 定位耳朵跟导光板的接触面积最大化, 同时又不会额外增加导光板的厚度, 有 利于实现液晶显示装置的轻薄化。
优选的, 所述定位耳朵跟导光板固定一端为根部, 与根部相对的另一端为 固定部; 所述导光板的侧面设有凹槽, 所述定位耳朵的根部嵌入凹槽内进行固 定。 此为另外一种侧面固定的方式, 设置凹槽后, 增大了定位耳朵和导光板的 接触面积, 可以提升固定强度。
优选的, 所述 槽的底部宽度大于其开口处的宽度; 相应的, 所述定位耳 朵的根部设有跟所述凹槽底部相配适的凸块。 凹槽的底部宽, 开口处小, 与之 配合的定位耳朵根部嵌入以后就形成了卡勾结构, 能有效防止定位耳朵从水平 方向脱离, 进一步提升固定的可靠性。
优选的, 所述凹槽为 T形凹槽。 此为一种具体的底部宽, 开口处小的凹槽 结构, "T" 的横边和竖边是相互垂直的, 定位强度高。
优选的, 所述定位耳朵跟导光板固定一端为根部, 与根部相对的另一端为 固定部; 所述定位耳朵的固定部上设有安装孔。 设安装孔后, 可以采用螺丝固 定的方式, 将定位耳朵固定到液晶显示装置的背板或框体上, 安装方便, 并可 拆卸。
优选的, 所述定位耳朵跟光学组件固定一端为根部, 与根部相对的另一端 为固定部; 所述定位耳朵的根部固定在所述光学组件的出光面或出光面的相背 面的边缘处。 此为一种适用于反射片或光学膜片的技术方案, 这样定位耳朵和 底面或顶面交叠, 两者之间的交叠面积较大, 且在固定的时候可调整。 一般来 说, 交叠区域越大, 固定强度越高, 因此, 定位耳朵和光学组件的固定更可靠。
优选的, 所述定位耳朵的厚度与所述反射片或光学膜片的厚度一致。 厚度 相等, 可以采用加工反射片或光学膜片后剩下的同样的材料做耳朵, 材料更为 节省。
一种液晶显示装置, 包括上述的一种背光模组。
本发明由于将光学组件及其定位部进行拆分, 光学组件可以做出规整的矩 形结构, 无需为了形成定位部件再进行二次裁切, 减少了材料浪费; 而定位耳 朵本身比较小, 可以利用裁切后的光学组件的边角料来加工。
【附图说明】
图 1是本发明整体示意图;
图 2是本发明实施例一示意图;
图 3是本发明实施例二示意图;
图 4是本发明实施例二局部分解示意图;
图 5是本发明实施例二局部放大示意图;
图 6是本发明沿图 5中 X-X,剖面示意图;
图 7是本发明实施例三示意图;
其中: 100、 光学组件; 110、 凹槽; 200、 定位耳朵; 210、 安装孔; 220、 根部; 230、 凸块。 【具体实施方式】
下面结合附图和较佳的实施例对本发明作进一步说明。
一种液晶显示装置, 包括背光模组, 该背光模组包括光学组件 100, 所述光 学组件 100边缘固定有独立的定位耳朵 200,光学组件可以为反射片、光学膜片、 导光板中的任一一种或多种。 定位耳朵 200 为单独小结构片材, 可选用与光学 组件同样的材料, 亦可其他材料, 如 PET等, 然后通过拼接、 黏贴等方式与光 学组件 100形成整体。 该定位耳朵 200包括跟光学组件 100固定的根部 220, 与 根部 220相对的另一端为固定定位耳朵 200的固定部。 定位耳朵 200分为两个 部分, 与光学组件固定的根部 220 可以采用多种固定方式, 同样的, 固定部也 可以采用多种固定方式来固定定位耳朵 200, 两个部分都有多种固定方案, 可以 根据具体情况灵活配置。
实施例一
如图 1和图 2所示, 定位耳朵 200的根部 220采用粘贴等方式直接固定到 所述光学组件 100的出光面相邻接的侧面。 这样定位耳朵 200和光学组件 100 在同一水平面上, 特别是当定位耳朵的厚度跟所述光学组件的厚度一致时, 这 样可以在提高连接强度的情况下不增加光学组件的厚度, 尤其适合导光板的固 定, 有利于实现液晶显示装置的轻薄化。
定位耳朵 200的固定部上设有安装孔 210, 这样方便采用螺丝固定的方式, 将定位耳朵 200固定到液晶显示装置的背板或框体上, 安装方便, 并可拆卸。
实施例二
为了提升固定强度, 在实施例一的基础上, 可以在光学组件 100 的侧面设 置凹槽 110, 将定位耳朵 200的根部 220嵌入凹槽 110内进行固定, 这样就增大 了定位耳朵 200和光学组件 100的接触面积, 可以提升固定强度。
进一步的,如图 3 ~ 6所示,所述凹槽 110的底部宽度大于其开口处的宽度; 相应的, 所述定位耳朵 200的根部 220设有跟所述凹槽 110底部相配适的凸块 230。 凹槽 110的底部宽, 开口处小, 与之配合的定位耳朵 200根部 220嵌入以 后就形成了卡勾结构, 能有效防止定位耳朵 200从水平方向脱离, 进一步提升 固定的可靠性, 固定也更为方便。
该凹槽 110可以采用 T形结构, "T" 的横边和竖边是相互垂直的, 定位强 度高。 当然也可以采用楔形等其他底部宽, 开口处小的结构。
定位耳朵 200的固定部上设有安装孔 210, 这样方便采用螺丝固定的方式, 将定位耳朵 200固定到液晶显示装置的背板或框体上, 安装方便, 并可拆卸。
实施例三
如图 1、 7所示, 定位耳朵 200的根部 220采用粘贴等方式固定在所述光学 组件 100 的出光面或出光面的相背面边缘处, 此为一种特别适用于反射片或者 是光学膜片的实施方式, 这样定位耳朵 200和底面或顶面交叠, 两者之间的交 叠面积在固定的时候可调整。 一般来说, 交叠区域越大, 固定强度越高, 因此, 定位耳朵 200和光学组件 100的固定更可靠。 由于反射片和光学膜片都 4艮薄, 定位耳朵的厚度不容易再减薄, 则可以采用加工反射片或光学膜片后剩下的同 样的材料做耳朵, 材料更为节省; 这样定位耳朵 200将与所述反射片或光学膜 片的厚度一致。
定位耳朵 200的固定部上设有安装孔 210, 这样方便采用螺丝固定的方式, 将定位耳朵 200固定到液晶显示装置的背板或框体上, 安装方便, 并可拆卸。
以上实施例仅为本专利技术方案说明, 并非对其限制, 在本专利技术精神 范围内, 依不同机种, 定位耳朵外形结构、 耳朵位置还可做其他结构形式之变 更。 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: 光学组件, 所述光学组件为反射片, 所述反射片 边缘固定有独立的用于固定反射片的定位耳朵。
2、 如权利要求 1所述的一种背光模组, 其特征在于, 所述定位耳朵跟反射 片固定一端为根部, 与根部相对的另一端为固定部; 所述定位耳朵的根部固定 在所述反射片的出光面或出光面的相背面的边缘处。
3、 如权利要求 2所述的一种背光模组, 其特征在于, 所述定位耳朵的厚度 跟所述反射片的厚度一致。
4、 一种液晶显示装置, 包括: 一种背光模组, 所述背光模组包括反射片, 所述反射片边缘固定有独立的用于固定反射片的定位耳朵。
5、 如权利要求 4所述的一种液晶显示装置, 其特征在于, 所述定位耳朵跟 反射片固定一端为根部, 与根部相对的另一端为固定部; 所述定位耳朵的根部 固定在所述反射片的出光面或出光面的相背面的边缘处。
6、 如权利要求 5所述的一种液晶显示装置, 其特征在于, 所述定位耳朵的 厚度跟所述反射片的厚度一致。
7、 一种背光模组, 包括: 光学组件, 所述光学组件为光学膜片, 所述光学 膜片边缘固定有独立的用于固定光学膜片的定位耳朵。
8、 如权利要求 7所述的一种背光模组, 其特征在于, 所述定位耳朵跟光学 膜片固定一端为根部, 与根部相对的另一端为固定部; 所述定位耳朵的根部固 定在所述光学膜片的出光面或出光面的相背面的边缘处。
9、 如权利要求 8所述的一种背光模组, 其特征在于, 所述定位耳朵的厚度 跟所述光学膜片的厚度一致。
10、 一种液晶显示装置, 包括: 一种背光模组, 所述背光模组包括光学膜 片, 所述光学膜片边缘固定有独立的用于固定光学膜片的定位耳朵。
11、 如权利要求 10所述的一种液晶显示装置, 其特征在于, 所述定位耳朵 跟光学膜片固定一端为根部, 与根部相对的另一端为固定部; 所述定位耳朵的 根部固定在所述光学膜片的出光面或出光面的相背面的边缘处。
12、 如权利要求 11所述的一种液晶显示装置, 其特征在于, 所述定位耳朵 的厚度跟所述光学膜片的厚度一致。
13、 一种背光模组, 包括: 光学组件, 所述光学组件为导光板, 所述导光 板边缘固定有独立的用于固定导光板的定位耳朵。
14、 如权利要求 13所述的一种背光模组, 其特征在于, 所述定位耳朵跟导 光板固定一端为根部, 与根部相对的另一端为固定部; 所述定位耳朵的根部与 所述导光板的出光面相邻接的侧面固定连接。
15、 如权利要求 14所述的一种背光模组, 其特征在于, 所述定位耳朵的厚 度跟所述导光板的厚度一致。
16、 如权利要求 13所述的一种背光模组, 其特征在于, 所述定位耳朵跟导 光板固定一端为根部, 与根部相对的另一端为固定部; 所述导光板的侧面设有 W槽, 所述定位耳朵的根部嵌入 槽内进行固定。
17、 如权利要求 16所述的一种背光模组, 其特征在于, 所述凹槽的底部宽 度大于其开口处的宽度; 相应的, 所述定位耳朵的根部设有跟所述凹槽底部相 配适的凸块。
18、 如权利要求 17所述的一种背光模组, 其特征在于, 所述凹槽为 T形凹 槽。
19、 一种液晶显示装置, 包括: 一种背光模组, 所述背光模组包括光学组 件, 所述光学组件为导光板, 所述导光板边缘固定有独立的用于固定导光板的 定位耳朵。
20、 如权利要求 19所述的一种液晶显示装置, 其特征在于, 所述定位耳朵 跟导光板固定一端为根部, 与根部相对的另一端为固定部; 所述定位耳朵的根 部与所述导光板的出光面相邻接的侧面固定连接。
21、 如权利要求 20所述的一种液晶显示装置, 其特征在于, 所述定位耳朵 的厚度跟所述导光板的厚度一致。
22、 如权利要求 19所述的一种液晶显示装置, 其特征在于, 所述定位耳朵 跟导光板固定一端为根部, 与根部相对的另一端为固定部; 所述导光板的侧面 设有凹槽, 所述定位耳朵的根部嵌入凹槽内进行固定。
23、 如权利要求 19所述的一种液晶显示装置, 其特征在于, 所述凹槽的底 部宽度大于其开口处的宽度; 相应的, 所述定位耳朵的根部设有跟所述凹槽底 部相配适的凸块。
24、 如权利要求 23所述的一种液晶显示装置, 其特征在于, 所述凹槽为 T 形凹槽。
PCT/CN2012/071716 2012-02-10 2012-02-28 一种背光模组和液晶显示装置 WO2013117020A1 (zh)

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