WO2013120295A1 - 背光模组 - Google Patents

背光模组 Download PDF

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Publication number
WO2013120295A1
WO2013120295A1 PCT/CN2012/072349 CN2012072349W WO2013120295A1 WO 2013120295 A1 WO2013120295 A1 WO 2013120295A1 CN 2012072349 W CN2012072349 W CN 2012072349W WO 2013120295 A1 WO2013120295 A1 WO 2013120295A1
Authority
WO
WIPO (PCT)
Prior art keywords
positioning
light guide
guide plate
backlight module
optical film
Prior art date
Application number
PCT/CN2012/072349
Other languages
English (en)
French (fr)
Inventor
黄冲
Original Assignee
深圳市华星光电技术有限公司
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 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
Priority to US13/508,723 priority Critical patent/US8708546B2/en
Publication of WO2013120295A1 publication Critical patent/WO2013120295A1/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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—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
    • G02F1/133322—Mechanical guidance or alignment of LCD panel support components

Definitions

  • the present invention relates to the field of liquid crystal display, and in particular to a backlight module. Background technique
  • Liquid crystal display has many advantages such as thin body, power saving, and no radiation, and has been widely used.
  • Most of the liquid crystal display devices on the market are backlight type liquid crystal displays, which include a liquid crystal panel and a backlight module.
  • the working principle of the liquid crystal panel is to place liquid crystal molecules in two parallel glass. There are many vertical and horizontal small wires between the two glass plates.
  • the liquid crystal molecules are controlled to change direction by energization or not, and the light of the backlight module is refracted. Picture. Since the liquid crystal panel itself does not emit light, it is necessary to display the image normally by the light source provided by the backlight module. Therefore, the backlight module becomes one of the key components of the liquid crystal display device.
  • the backlight module is divided into a side-entry backlight module and a direct-lit backlight module according to different incident positions of the light source.
  • a light source such as a CCFL (Cold Cathode Fluorescent Lamp) or an LED (Light Emitting Diode) is disposed behind the liquid crystal panel, and a surface light source is directly formed and supplied to the liquid crystal panel.
  • CCFL Cold Cathode Fluorescent Lamp
  • LED Light Emitting Diode
  • the side-lit backlight module is provided with an LED light bar disposed on the edge of the back panel behind the liquid crystal panel, and the light emitted by the LED strip enters the light guide plate from the light incident surface of the light guide plate, and is reflected and After being diffused, it is emitted from the light-emitting surface of the light guide plate to form a surface light source to be supplied to the liquid crystal panel.
  • the side-lit backlight module includes a back plate, a backlight disposed on the back plate, a reflective sheet, a light guide plate, and an optical film.
  • the optical film, the light guide plate and the reflection sheet need to be positioned first, and then the optical film, the light guide plate and the reflection sheet are assembled in the back plate.
  • the existing positioning method is to use the optical film and the light guide plate.
  • the reflective sheet is riveted to the back plate by a stud. This riveting positioning method is difficult to operate, has a high cost, and affects the backlight effect to some extent. Summary of the invention
  • the object of the present invention is to provide a backlight module.
  • the optical film, the light guide plate and the reflection sheet can be well positioned by providing a positioning column on the lower surface of the light guide plate, and the structure is simple and the cost is low.
  • the present invention provides a backlight module, including: a back plate, a light plate disposed on the back plate, and a plurality of upper positioning posts and a plurality of lower portions respectively protruding on the upper surface and the lower surface of the body a positioning hole, the optical film is provided with a first positioning hole corresponding to the upper positioning post, the reflective piece is provided with a second positioning hole corresponding to the lower positioning column, and the back plate is provided with a positioning groove corresponding to the lower positioning column.
  • the first positioning hole on the optical film is disposed on the upper positioning post of the light guide plate, and the lower positioning post of the light guide plate is mounted on the back plate through the second positioning hole of the corresponding reflective sheet. Within the positioning slot.
  • the light guide plate body includes a base portion and a plurality of positioning portions mounted on the base portion.
  • the upper and lower surfaces of the positioning portion are flush with the upper and lower surfaces of the base portion, and the upper and lower positioning posts are disposed at the positioning portion. On the upper and lower surfaces.
  • the base portion is provided with a receiving portion corresponding to the positioning portion, and the positioning portion is received in the receiving portion.
  • the positioning portion has a T shape
  • the receiving portion of the base portion has a T shape.
  • the positioning portion is attached to a side of the body.
  • the positioning portion and the base are made of the same material.
  • the positioning portion and the base are made of different materials.
  • the upper and lower positioning posts are integrally formed with the body.
  • the upper and lower positioning posts are fixed to the upper surface and the lower surface of the light guide plate body by a bonding manner.
  • the upper and lower positioning posts are all cylindrical, and the first positioning hole, the second positioning hole and the positioning groove have a circular shape.
  • the backlight module of the present invention is provided with a plurality of positioning columns on the light guide plate and the lower surface, and a plurality of positioning holes are arranged on the optical film and the reflection sheet, and a plurality of positioning holes are arranged on the optical film and the reflection plate.
  • the positioning of the optical film, the light guide plate, the reflection sheet and the back plate, and the optical film, the light guide plate and the reflection sheet are fixed in the back plate, thereby avoiding the use of the riveting column in the prior art.
  • the process of the backlight module is simplified, the operation is convenient, the structure is simple, and the cost is low, and the positioning post can be made of the same material as the light guide plate, thereby not affecting the backlight effect.
  • FIG. 1 is a cross-sectional view showing an embodiment of a backlight module of the present invention
  • the backlight module of the present invention includes: The optical film 20, the light guide plate 10, the optical film 20 and the reflection sheet 30 are all disposed in the back plate 40.
  • the light guide plate 10 includes a body 12 and a plurality of upper positioning posts 14 and lower positioning posts 16 protruding from the upper and lower surfaces of the body 12.
  • the body 12 includes a base portion 122 and a plurality of bases 122 mounted on the base portion 122.
  • the positioning portion 124, the upper and lower positioning posts 14, 16 are disposed on the upper and lower surfaces of the positioning portion 124, the positioning portion 124 is disposed in a T shape, and the base portion 122 is provided with a T-shaped corresponding to the positioning portion 124.
  • the positioning portion 124 is received in the accommodating portion 123.
  • the upper and lower surfaces of the positioning portion 124 are flush with the upper and lower surfaces of the base portion 122, and the upper and lower positioning posts 14 are 16 is respectively protruded from the upper and lower surfaces of the base portion 122.
  • the positioning portion 124 and the upper and lower positioning posts 14 and 16 are integrally formed from the same material, and the material can be The materials of the base 122 are the same or different.
  • the shape of the positioning portion 12 is not limited to the T shape, and the upper and lower positioning posts are simultaneously
  • the shape of 14, 16 may also be changed according to a specific structure.
  • the upper and lower positioning posts 14, 16 are all cylindrical, but are not limited to a cylinder.
  • the optical film 20 is provided with a first positioning hole 22 corresponding to the upper positioning post 14 .
  • the shape of the first positioning hole 22 is corresponding to the outer shape of the upper positioning post 14 . In this embodiment, the first positioning is performed.
  • the hole 22 is circular corresponding to the upper positioning post 14.
  • the second positioning hole 32 is disposed on the lower positioning post 16 , and the shape of the second positioning hole 32 is corresponding to the outer shape of the lower positioning post 16 .
  • the second positioning hole is disposed. 32 corresponds to the lower positioning post 16 being circular.
  • the positioning plate 42 is provided with a positioning slot 42 corresponding to the lower positioning post 16 , and the shape of the positioning slot 42 is corresponding to the shape of the lower positioning post 16 .
  • the positioning slot 42 corresponds to the lower positioning.
  • the column 16 is circular.
  • the first positioning hole 22 of the optical film 20 is sleeved on the upper positioning post 14 of the light guide plate 10, and the lower positioning post 16 of the light guide plate 10 passes through the corresponding reflective sheet 30.
  • the second positioning hole 32 is mounted in the positioning groove 42 of the back plate 40, and the light guide plate is further 10.
  • the optical film 20, the reflection sheet 30 and the back plate 40 are positioned and connected together, which avoids the use of the riveting column in the prior art, simplifies the assembly process of the backlight module, is convenient to operate, and reduces the production cost.
  • the light guide plate 10 includes a body 12, and is protruded from the body 12, up and down.
  • the upper and lower positioning posts 14 , 16 ′ on the surface, the body 12 includes a base portion 122 , and a plurality of positioning portions 124 mounted on the base portion 122 , the upper and lower positioning posts 14 , 16 .
  • the positioning portion 124' is disposed on the upper and lower surfaces of the positioning portion 124'.
  • the positioning portion 124' is disposed on the side of the base portion 122'.
  • the positioning portion 124 may be integrally formed with the base portion 122, or may be glued.
  • the method is attached to the side of the base 122.
  • the specific embodiment of this embodiment is the same as the above embodiment, and will not be described herein.
  • the light guide plate 10 includes a body 12" and an upper positioning column disposed on the upper surface of the body 12". 14", and a lower positioning post (not shown) disposed on the lower surface of the body 12", the upper positioning post 14" and the lower positioning post may be integrally formed with the body 12", or may be adhered by gluing On the upper and lower surfaces of the body 12".
  • the specific embodiment of this embodiment is the same as the above embodiment, and will not be described here.
  • the backlight module of the present invention has a plurality of positioning columns disposed on the light guide plate and the lower surface, and a plurality of positioning holes are disposed on the optical film and the reflection sheet, and a plurality of positioning holes are disposed on the optical film and the reflective plate. Positioning the groove, positioning the optical film, the light guide plate, the reflection sheet and the back plate, and fixing the optical film, the light guide plate and the reflection sheet in the back plate, thereby avoiding the use of the riveting column in the prior art, simplifying
  • the process of the backlight module is convenient to operate, simple in structure and low in cost, and the positioning post can be made of the same material as the light guide plate, thereby not affecting the backlight effect.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)

Abstract

一种背光模组，包括：背板（40）、设于背板（40）内的反射片（30）、设于反射片（30）上的导光板（10）及设于导光板（10）上的光学膜片（20）。所述导光板（10）包括本体（12）及分别凸设于该本体（12）上、表面上的数个上定位柱（14）与数个下定位柱（16）。所述光学膜片（20）对应所述上定位柱（14）设有第一定位孔（22），所述反射片（30）对应下定位柱（16）设有第二定位孔（32），所述背板（40）对应所述下定位柱（16）设有定位槽（42）。所述光学膜片（20）上的第一定位孔（22）对应套设于所述导光板（10）的上定位柱（14）上，所述导光板（10）的下定位柱（16）穿过对应反射片（30）的第二定位孔（32）安装于所述背板（40）的定位槽（42）内，避免了铆柱的使用，简化了制程，且结构简单、成本低。同时，该定位柱（14，16）可采用与导光板（10）相同的材料制成，进而不会影响背光效果。

Description

背光模组 技术领域
本发明涉及一种液晶显示领域， 尤其涉及一种背光模组。 背景技术
液晶显示装置（LCD, Liquid Crystal Display )具有机身薄、 省电、 无 辐射等众多优点， 得到了广泛的应用。 现有市场上的液晶显示装置大部分 为背光型液晶显示器， 其包括液晶面板及背光模组 ( backlight module ) 。 液晶面板的工作原理是在两片平行的玻璃当中放置液晶分子， 两片玻璃中 间有许多垂直和水平的细小电线， 通过通电与否来控制液晶分子改变方 向， 将背光模组的光线折射出来产生画面。 由于液晶面板本身不发光， 需 要借由背光模组提供的光源来正常显示影像， 因此， 背光模组成为液晶显 示装置的关键零组件之一。 背光模组依照光源入射位置的不同分成侧入式 背光模组与直下式背光模组两种。 直下式背光模组是将发光光源例如 CCFL(Cold Cathode Fluorescent Lamp , 阴极萤光灯管）或 LED(Light Emitting Diode发光二极管)设置在液晶面板后方， 直接形成面光源提供给 液晶面板。 而侧入式背光模组是将发光光源 LED 灯条（lightbar )设于液 晶面板侧后方的背板边缘， LED灯条发出的光线从导光板一侧的入光面进 入导光板， 经反射和扩散后从导光板出光面出射， 以形成面光源提供给液 晶面板。
侧入式背光模组包括背板、 设于背板上的背光源、 反射片、 导光板、 及光学膜片。 在背光模组组装时， 需要先定位光学膜片、 导光板及反射 片， 然后再将光学膜片、 导光板及反射片组装于背板内， 现有定位方式是 将光学膜片、 导光板及反射片通过铆柱铆接于背板上。 这种铆接定位方式 难操作， 成本较高， 且在一定程度上影响了背光效果。 发明内容
本发明的目的在于提供一种背光模组， 通过在导光板上下表面设置定 位柱， 能很好的定位光学膜片、 导光板及反射片， 且结构简单、 成本低。
为实现上述目的， 本发明提供一种背光模组， 包括： 背板、 设于背板 光板包括本体及分别凸设于该本体上、 下表面上的数个上定位柱与数个下 定位柱， 所述光学膜片对应所述上定位柱设有第一定位孔， 所述反射片对 应下定位柱设有第二定位孔， 所述背板对应所述下定位柱设有定位槽， 所 述光学膜片上的第一定位孔对应套设于所述导光板的上定位柱上， 所述导 光板的下定位柱穿过对应反射片的第二定位孔安装于所述背板的定位槽 内。
所述导光板本体包括一基部与安装于基部上的数个定位部， 所述定位 部上、 下表面与基部的上、 下表面平齐， 所述上、 下定位柱设于该定位部 的上、 下表面上。
所述基部对应该定位部设有容置部， 该定位部容置于该容置部内。 所述定位部呈 T形， 所述基部的容置部对应呈 T形。
所述定位部贴设于所述本体的侧边。
所述定位部与所述基部由相同材料制成。
所述定位部与所述基部由不同材料制成。
所述上、 下定位柱与所述本体一体成型制成。
所述上、 下定位柱通过贴合方式固定于所述导光板本体的上、 下表 面。
所述上、 下定位柱均为圓柱体， 所述第一定位孔、 第二定位孔及定位 槽的形状为圓形。
本发明的有益效果： 本发明背光模组通过在导光板上、 下表面设置数 个定位柱， 对应该数个定位柱在光学膜片、 反射片上设置数个定位孔及在 背板上设置数个定位槽的方式， 对光学膜片、 导光板、 反射片及背板进行 定位， 并将光学膜片、 导光板、 反射片固定于背板内， 避免了现有技术中 铆柱的使用， 简化了背光模组的制程， 操作方便， 且结构简单、 成本低， 同时该定位柱可釆用与导光板相同的材料制成， 进而不会影响背光效果。
为了能更进一步了解本发明的特征以及技术内容， 请参阅以下有关本 发明的详细说明与附图， 然而附图仅提供参考与说明用， 并非用来对本发 明加以限制。 附图说明
下面结合附图， 通过对本发明的具体实施方式详细描述， 将使本发明 的技术方案及其它有益效果显而易见。
附图中，
图 1为本发明背光模组一实施例的剖面示意图；
图 2为本图 1中导光板的立体分解示意图； 图 3为本发明背光模组的又一实施例中导光板的立体示意图； 图 4为本发明背光模组的另一实施例中导光板的立体示意图。 具体实施方式
为更进一步阐述本发明所釆取的技术手段及其效果， 以下结合本发明 的优选实施例及其附图进行详细描述。
请参阅图 1至 2, 本发明提供的背光模组， 其包括： 背板 40、 设于背 板 40内的反射片 30、 设于反射片 30上的导光板 10及设于导光板 10上的 光学膜片 20, 所述导光板 10、 光学膜片 20及反射片 30均设于该背板 40 内。
所述导光板 10包括本体 12、 及凸设于该本体 12上、 下表面的数个上 定位柱 14与下定位柱 16, 所述本体 12包括一基部 122与安装于基部 122 上的数个定位部 124, 所述上、 下定位柱 14、 16设于该定位部 124的上、 下表面上， 所述定位部 124呈 T形设置， 所述基部 122对应该定位部 124 设有 T形容置部 123 , 该定位部 124容置于该容置部 123 内， 组装后， 所 述定位部 124上、 下表面与基部 122的上、 下表面平齐， 所述上、 下定位 柱 14、 16分别凸设于所述基部 122 的上、 下表面外， 优选的， 所述定位 部 124 与所述上、 下定位柱 14、 16 由同种材料一体成型制成， 该种材料 可与所述基部 122的材料相同或不同。
所述定位部 12 的形状并不局限于 T 形， 同时， 所述上、 下定位柱
14、 16的形状也可以根据具体结构加以变化， 在本实施例中， 所述上、 下 定位柱 14、 16均为圓柱体， 但并不限于圓柱体。
所述光学膜片 20对应所述上定位柱 14设有第一定位孔 22, 该第一定 位孔 22的形状对应所述上定位柱 14的外形设置， 在本实施例中， 该第一 定位孔 22对应所述上定位柱 14为圓形。
所述反射片 30对应所述下定位柱 16设有第二定位孔 32, 该第二定位 孔 32的形状对应所述下定位柱 16的外形设置， 在本实施例中， 该第二定 位孔 32对应所述下定位柱 16为圓形。
所述背板 40对应所述下定位柱 16设有定位槽 42, 该定位槽 42的形 状对应所述下定位柱 16的外形设置， 在本实施例中， 该定位槽 42对应所 述下定位柱 16为圓形。
组装时， 所述光学膜片 20上的第一定位孔 22对应套设于所述导光板 10的上定位柱 14上， 所述导光板 10的下定位柱 16穿过相对应的反射片 30的第二定位孔 32并安装于所述背板 40的定位槽 42内， 进而将导光板 10、 光学膜片 20、 反射片 30及背板 40定位连接在一起， 避免了现有技术 中铆柱的使用， 简化了背光模组的组装制程， 操作方便， 同时降低了生产 成本。
请参阅图 3 , 为本发明背光模组又一实施例中导光板的立体示意图， 在本实施例中， 所述导光板 10，包括本体 12，、 及凸设于该本体 12，上、 下 表面上的上、 下定位柱 14，， 16' , 所述本体 12，包括基部 122，与安装于基 部 122，上的数个定位部 124，， 所述上、 下定位柱 14，、 16，设于该定位部 124'的上、 下表面上， 该定位部 124'设于所述基部 122'的侧边， 该定位部 124， 可与该基部 122，一体成型， 也可以通过胶粘的方式贴合于该基部 122，的侧边。 本实施例的具体实施方式与上述实施例相同， 在此不做赘 述。
请参阅图 4, 为本发明背光模组另一实施例中导光板的立体示意图， 在本实施例中， 所述导光板 10"包括本体 12" 、 设于本体 12"上表面的上 定位柱 14"、 及设于本体 12"下表面的下定位柱（未图示） ， 该上定位柱 14"与下定位柱可与该本体 12"—体成型， 也可以通过胶粘的方式贴合于 该本体 12"的上、 下表面上。 本实施例的具体实施方式与上述实施例相 同， 在此不做赞述。
综上所述， 本发明背光模组通过在导光板上、 下表面设置数个定位 柱， 对应该数个定位柱在光学膜片、 反射片上设置数个定位孔及在背板上 设置数个定位槽的方式， 对光学膜片、 导光板、 反射片及背板进行定位， 并将光学膜片、 导光板、 反射片固定于背板内， 避免了现有技术中铆柱的 使用， 简化了背光模组的制程， 操作方便， 且结构简单， 成本低， 同时该 定位柱可釆用与导光板相同的材料制成， 进而不会影响背光效果。
以上所述， 对于本领域的普通技术人员来说， 可以根据本发明的技术 方案和技术构思作出其他各种相应的改变和变形， 而所有这些改变和变形 都应属于本发明权利要求的保护范围。

Claims

权 利 要 求
1、 一种背光模组， 包括： 背板、 设于背板内的反射片、 设于反射片 上的导光板及设于导光板上的光学膜片， 所述导光板包括本体及分别凸设 于该本体上、 下表面上的数个上定位柱与数个下定位柱， 所述光学膜片对 应所述上定位柱设有第一定位孔， 所述反射片对应下定位柱设有第二定位 孔， 所述背板对应所述下定位柱设有定位槽， 所述光学膜片上的第一定位 孔对应套设于所述导光板的上定位柱上， 所述导光板的下定位柱穿过对应 反射片的第二定位孔安装于所述背板的定位槽内。
2、 如权利要求 1 所述的背光模组， 其中， 所述导光板本体包括一基 部与安装于基部上的数个定位部， 所述定位部上、 下表面与基部的上、 下 表面平齐， 所述上、 下定位柱设于该定位部的上、 下表面上。
3、 如权利要求 2 所述的背光模组， 其中， 所述基部对应该定位部设 有容置部， 该定位部容置于该容置部内。
4、 如权利要求 3 所述的背光模组， 其中， 所述定位部呈 T形， 所述 基部的容置部对应呈 T形。
5、 如权利要求 2 所述的背光模组， 其中， 所述定位部贴设于所述本 体的侧边。
6、 如权利要求 2 所述的背光模组， 其中， 所述定位部与所述基部由 相同材料制成。
7、 如权利要求 2 所述的背光模组， 其中， 所述定位部与所述基部由 不同材料制成。
8、 如权利要求 1 所述的背光模组， 其中， 所述上、 下定位柱与所述 本体一体成型制成。
9、 如权利要求 1 所述的背光模组， 其中， 所述上、 下定位柱通过贴 合方式固定于所述导光板本体的上、 下表面。
10、 如权利要求 1 所述的背光模组， 其中， 所述上、 下定位柱均为圓 柱体， 所述第一定位孔、 第二定位孔及定位槽的形状为圓形。
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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI486686B (zh) * 2013-01-11 2015-06-01 Au Optronics Corp 具導光板定位設計之背光模組
TWI494661B (zh) 2013-04-03 2015-08-01 Au Optronics Corp 顯示裝置及其背光模組及其應用
JP6287897B2 (ja) * 2014-08-22 2018-03-07 オムロン株式会社 照明装置、電子機器、フレーム構造、フレーム構造の製造方法
CN104763979A (zh) * 2015-01-28 2015-07-08 合肥京东方光电科技有限公司 一种导光板、背光模组及显示装置
CN105182605B (zh) * 2015-09-09 2018-07-27 深圳市华星光电技术有限公司 一种背光模组与显示装置
CN105511159B (zh) 2015-12-23 2019-05-21 深圳市华星光电技术有限公司 液晶显示器及其背光模块
CN206479671U (zh) * 2017-03-01 2017-09-08 合肥京东方光电科技有限公司 一种导光板、背光源及显示装置
CN111221180B (zh) * 2020-01-20 2022-05-13 京东方科技集团股份有限公司 一种背光源及显示装置
CN114530097A (zh) * 2022-03-15 2022-05-24 Tcl华星光电技术有限公司 显示装置
TWI813396B (zh) * 2022-06-08 2023-08-21 瑞儀光電股份有限公司 背光模組及顯示器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004184493A (ja) * 2002-11-29 2004-07-02 Seiko Epson Corp 電気光学装置、電気光学装置の製造方法、および電子機器
CN1896830A (zh) * 2005-07-15 2007-01-17 群康科技(深圳)有限公司 背光模组和液晶显示器
JP2007078926A (ja) * 2005-09-13 2007-03-29 Sanyo Epson Imaging Devices Corp 電気光学装置及び電子機器
CN201489240U (zh) * 2009-05-31 2010-05-26 昆山龙腾光电有限公司 液晶显示器的背光模块

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004184493A (ja) * 2002-11-29 2004-07-02 Seiko Epson Corp 電気光学装置、電気光学装置の製造方法、および電子機器
CN1896830A (zh) * 2005-07-15 2007-01-17 群康科技(深圳)有限公司 背光模组和液晶显示器
JP2007078926A (ja) * 2005-09-13 2007-03-29 Sanyo Epson Imaging Devices Corp 電気光学装置及び電子機器
CN201489240U (zh) * 2009-05-31 2010-05-26 昆山龙腾光电有限公司 液晶显示器的背光模块

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