WO2014063396A1 - 一种背光模组 - Google Patents

一种背光模组 Download PDF

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Publication number
WO2014063396A1
WO2014063396A1 PCT/CN2012/084754 CN2012084754W WO2014063396A1 WO 2014063396 A1 WO2014063396 A1 WO 2014063396A1 CN 2012084754 W CN2012084754 W CN 2012084754W WO 2014063396 A1 WO2014063396 A1 WO 2014063396A1
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WO
WIPO (PCT)
Prior art keywords
backlight module
back plate
positioning member
backlight
disposed
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/CN2012/084754
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English (en)
French (fr)
Inventor
王利锋
萧宇均
郭仪正
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US13/703,354 priority Critical patent/US20140112021A1/en
Publication of WO2014063396A1 publication Critical patent/WO2014063396A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/46—Fixing elements
    • G02F2201/465—Snap -fit

Definitions

  • the present invention relates to the field of display devices, and more particularly to a backlight module.
  • the light guide plate and the optical film 1 of the existing backlight module are positioned in such a manner that the positioning member 2 is fixed at the four corners of the back plate 3.
  • This fixing method can eliminate the cutting cost of the positioning slit, thereby reducing the cost of the backlight module.
  • the specific structure is that a bump 4 is disposed on the positioning member 2, and a positioning hole that cooperates with the bump 4 is formed on the back plate 3.
  • the positioning member 2 is generally formed by using a white material. After the TV set is assembled, the white positioning member exposed on the back plate 3 is covered inside the television set without affecting the appearance of the television set due to the addition of the TV back cover.
  • the integrated machine adopts such a design, since the back panel portion of the backlight module is used as the appearance component of the television complete machine, the bumps of the positioning member 2 at the four corners of the backboard 3 are not covered by the TV back cover. , resulting in inconsistency with the color of the whole machine, affecting the appearance of the product.
  • the technical problem to be solved by the present invention is to provide a backlight module for the above-mentioned drawbacks of the prior art.
  • the technical solution adopted by the present invention to solve the technical problem is: constructing a backlight module, including a back plate, and a backlight assembly fixed in the back plate by a positioning structure, the positioning structure including a fixing for the backlight a positioning member provided with a recessed portion and a convex portion disposed on the back plate, wherein the backlight assembly is fixed by the concave-convex engagement of the positioning member recess portion and the convex portion of the back plate Inside the back panel.
  • the convex portion includes an inwardly folded folded portion disposed at an edge of the back plate.
  • the backlight module of the present invention wherein the folding portion includes a first folded portion extending toward the inside of the back plate, and a second folded portion extending upward from an end of the first folded portion;
  • the recessed portion on the positioning member is concave-convex with the second folded portion.
  • the convex portion includes a cylindrical pin, and the concave portion includes a through hole.
  • the backlight assembly includes a plurality of optical films stacked on each other, and a light guide sheet and a reflection sheet sequentially disposed at the bottom of the optical film.
  • the positioning member is provided with a pin shaft, and the optical film is provided with a through hole that is inserted into the pin shaft.
  • the backlight module further includes a front frame fastened to the back plate, and the front frame is fastened to the back plate.
  • the backlight module of the present invention further comprising a middle frame disposed between the front frame and the back plate, and being engaged between the front frame and the middle frame, and located at the The LCD screen above the backlight assembly.
  • the backlight module of the present invention has the following beneficial effects: by providing a convex portion on the back plate, a recessed portion is provided on the positioning member, which solves the problem that the convexity of the positioning member is exposed to the appearance of the product. .
  • FIG. 1 is a schematic structural view of a light guide plate and an optical film positioning manner in the prior art
  • FIG. 2 is a partial structural schematic view of a preferred embodiment of a backplane module of the present invention
  • FIG. 3 is a schematic structural view of a positioning member in a preferred embodiment of a backboard module according to the present invention.
  • FIG. 4 is an enlarged view of a portion A of FIG. 1 in a preferred embodiment of a backboard module of the present invention
  • Figure 5 is a cross-sectional view of a preferred embodiment of a backplane module of the present invention.
  • the backplane module includes a backplane 100 and a backlight assembly 200 fixed in the backplane 100 by a positioning structure, and the positioning structure includes a fixing backlight assembly.
  • the positioning member 300 provided with the recessed portion 301 and the protruding portion 400 disposed on the back plate 100, the backlight assembly 200 is fixed to the back by the concave-convex portion of the protruding portion 301 of the positioning member 300 and the convex portion 400 of the back plate 100 Inside the board 100.
  • the positioning member 300 exists as an intermediate member, and functions to fix the backlight assembly 200 in the back plate 100, and the protrusion portion 400 is disposed on the back plate 100, and the recess portion 301 is disposed on the positioning member 300 to avoid the positioning member. 300 is exposed on the backing plate, resulting in the appearance of a situation that affects the appearance of the product.
  • the raised portion 400 on the backing plate 100 includes an inwardly folded fold that is disposed at the edge of the backing plate 100.
  • the folded portion includes a first folded portion 401 extending toward the inside of the back plate 100, and a second folded portion 402 extending upward from the end of the first folded portion 401.
  • the recessed portion 301 of the positioning member 300 is concave-convex with the second folded portion 402.
  • the positioning member 300 has a recessed portion 301 similar to the inverted L-shaped hook, and the recessed portion 301 is exactly opposite to the second folded portion 402. Cooperate. Since the folding portion 400 extends into the back plate 100, the positioning member 300 is not exposed to the backing plate 100 to affect the appearance of the product.
  • the positioning structure is not limited to the structure given by the present invention.
  • the boss 400 may also be a cylindrical pin protruding from the back plate 100, and the recess 301 on the positioning member 300 is correspondingly matched with the cylindrical pin. Through hole.
  • the backlight assembly 200 includes a plurality of optical films 201 stacked one on another, and a light guide sheet 202 and a reflection sheet 203 which are sequentially disposed at the bottom of the optical film 201.
  • the positioning member 300 is provided with a pin shaft
  • the optical film 201 is provided with a through hole that is inserted into the pin shaft.
  • the plurality of optical films 201 are disposed on the positioning member 300 through the cooperation of the through hole and the pin shaft. Since the light guide sheet 202 and the reflection sheet 203 are located at the bottom of the optical film 201, the optical film 201 is pressed against the positioning member 300 to complete the fixing.
  • the backlight module further includes a front frame 500 fastened on the back plate 100, a middle frame 600 disposed between the front frame 500 and the back plate 100, and engaged between the front frame 500 and the middle frame 600,
  • the liquid crystal panel 700 is located above the backlight assembly 200.
  • the front frame 500 is fastened to the back plate 100, and can also be used to shield the positioning structure, so that the appearance of the product is more harmonious and beautiful.

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

Abstract

一种背光模组，包括背板（10）、以及通过定位结构固定在背板（10）内的背光组件（200）。该定位结构包括用于固定背光组件（200）且设有凹陷部（301）的定位件（300）、以及设置在背板（10）上的凸起部（400），背光组件（200）通过定位件（300）的凹陷部（301）与背板（10）上凸起部（400）的凹凸配合固定在背板（10）内。该背光模组解决了定位件凸点外露从而影响产品外观的问题。

Description

一种背光模组 技术领域
本发明涉及显示装置领域，更具体地说，涉及一种背光模组。
背景技术
现有背光模组的导光板及光学膜片1定位方式为：在背板3四角采用定位件2固定。此种固定方式可以省掉定位切口的裁切费用，从而降低背光模组的成本。具体结构为，在定位件2上设置凸点4，而在背板3上开设与凸点4配合的定位孔。为防止定位件2吸收光线降低光学效率，定位件2一般采用白色材料成型而成。在组成电视整机后，由于加上电视整机后盖，背板3上露出的白色定位件被遮盖在电视机内部不会影响电视机外观。而当一体机采用此种设计时，由于背光模组的背板部分作为电视整机的外观件，在背板3四个角上的定位件2的凸点4处无电视整机背盖遮盖，导致与整机颜色的不协调，影响产品的外观。
发明内容
本发明要解决的技术问题在于，针对现有技术的上述缺陷，提供一种背光模组。
本发明解决其技术问题所采用的技术方案是：构造一种背光模组，包括背板、以及通过定位结构固定在所述背板内的背光组件，所述定位结构包括用于固定所述背光组件且设有凹陷部的定位件、以及设置在所述背板上的凸起部，所述背光组件通过所述定位件凹陷部与所述背板上凸起部的凹凸配合固定在所述背板内。
本发明所述的背光模组，其中，所述凸起部包括设置在所述背板边缘的、向内翻折的翻折部。
本发明所述的背光模组，其中，所述翻折部包括向所述背板内部延伸的第一翻折部、以及由所述第一翻折部末端向上延伸的第二翻折部；所述定位件上的所述凹陷部与所述第二翻折部凹凸配合。
本发明所述的背光模组，其中，所述凸起部包括圆柱销，所述凹陷部包括通孔。
本发明所述的背光模组，其中，所述背光组件包括多块相互叠加的光学膜片、以及依次设置在所述光学膜片底部的导光片和反射片。
本发明所述的背光模组，其中，所述定位件上设有销轴，所述光学膜片上开设有与所述销轴插接配合的通孔。
本发明所述的背光模组，其中，该背光模组还包括扣合在所述背板上的前框，所述前框扣合在所述背板上。
本发明所述的背光模组，其中，该背光模组还包括设置在所述前框和背板之间的中框、以及卡合于所述前框和中框之间、且位于所述背光组件上方的液晶屏。
实施本发明的背光模组，具有以下有益效果：通过在背板上设置凸起部，在定位件上设置与之配合的凹陷部，很好地解决了定位件凸点外露影响产品外观的问题。
附图说明
下面将结合附图及实施例对本发明作进一步说明，附图中：
图1是现有技术中导光板与光学膜片定位方式的结构示意图；
图2是本发明一种背板模组优选实施例的局部结构示意图；
图3是本发明一种背板模组优选实施例中定位件的结构示意图；
图4是本发明一种背板模组优选实施例图1中A部位的放大图；
图5是本发明一种背板模组优选实施例的剖视图。
具体实施方式
如图2-3所示，在本发明的优选实施例中，该背板模组包括背板100、以及通过定位结构固定在背板100内的背光组件200，定位结构包括用于固定背光组件200且设有凹陷部301的定位件300、以及设置在背板100上的凸起部400，背光组件200通过定位件300凹陷部301与背板100上凸起部400的凹凸配合固定在背板100内。定位件300作为一种中间件而存在，其作用是将背光组件200固定在背板100内，在背板100上设置凸起部400，而在定位件300上设置凹陷部301可以避免定位件300外露于背板，导致影响产品外观的情况的出现。
如图4-5所示，在本发明的优选实施例中，背板100上的凸起部400包括设置在背板100边缘的、向内翻折的翻折部。该翻折部包括向背板100内部延伸的第一翻折部401、以及由第一翻折部401末端向上延伸的第二翻折部402。定位件300上的凹陷部301与第二翻折部402凹凸配合，具体说来，定位件300有类似于倒L型勾的凹陷部301，该凹陷部301正好与第二翻折部402凹凸配合。由于翻折部400是向背板100内延伸的，因此定位件300不会外露于背板100导致影响产品外观。
上述定位结构不局限于本发明给出的结构，例如，凸起部400还可以是凸设在背板100内的圆柱销，而定位件300上的凹陷部301相应地为与圆柱销配合的通孔。
在上述各优选实施例中，背光组件200包括多块相互叠加的光学膜片201、以及依次设置在光学膜片201底部的导光片202和反射片203。通常来说，定位件300上设有销轴，光学膜片201上开设有与销轴插接配合的通孔，多块光学膜片201通过通孔与销轴的配合设置在定位件300上，而由于导光片202和反射片203位于光学膜片201底部，因此被光学膜片201压在了定位件300上以此来完成固定。
此外，该背光模组还包括扣合在背板100上的前框500、设置在前框500和背板100之间的中框600、以及卡合于前框500和中框600之间、且位于背光组件200上方的液晶屏700。前框500与背板100扣合连接，也能起来遮蔽定位结构的目的，使产品的外观更加协调美观。
以上实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据此实施，并不能限制本发明的保护范围。凡跟本发明权利要求范围所做的均等变化与修饰，均应属于本发明权利要求的涵盖范围。

Claims (8)

1、一种背光模组，包括背板、以及通过定位结构固定在所述背板内的背光组件，其中，所述定位结构包括用于固定所述背光组件且设有凹陷部的定位件、以及设置在所述背板上的凸起部，所述背光组件通过所述定位件的凹陷部与所述背板上凸起部的凹凸配合固定在所述背板内。
2、根据权利要求1所述的背光模组，其中，所述凸起部包括设置在所述背板边缘的、向内翻折的翻折部。
3、根据权利要求2所述的背光模组，其中，所述翻折部包括向所述背板内部延伸的第一翻折部、以及由所述第一翻折部末端向上延伸的第二翻折部；所述定位件上的所述凹陷部与所述第二翻折部凹凸配合。
4、根据权利要求1所述的背光模组，其中，所述凸起部包括圆柱销，所述凹陷部包括通孔。
5、根据权利要求1-4任一项所述的背光模组，其中，所述背光组件包括多块相互叠加的光学膜片、以及依次设置在所述光学膜片底部的导光片（202）和反射片。
6、根据权利要求5所述的背光模组，其中，所述定位件上设有销轴，所述光学膜片上开设有与所述销轴插接配合的通孔。
7、根据权利要求1所述的背光模组，其中，该背光模组还包括扣合在所述背板上的前框，所述前框扣合在所述背板上。
8、根据权利要求7所述的背光模组，其中，该背光模组还包括设置在所述前框和背板之间的中框、以及卡合于所述前框和中框之间、且位于所述背光组件上方的液晶屏。
PCT/CN2012/084754 2012-10-24 2012-11-16 一种背光模组 Ceased WO2014063396A1 (zh)

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Application Number Priority Date Filing Date Title
US13/703,354 US20140112021A1 (en) 2012-10-24 2012-11-16 Backlight module

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CN201210409081.1A CN102889527B (zh) 2012-10-24 2012-10-24 一种背光模组

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CN106652797A (zh) * 2016-11-30 2017-05-10 奥捷科技（厦门）有限公司 一种窄边框显示装置
CN107564411A (zh) * 2017-10-24 2018-01-09 奥捷科技（厦门）有限公司 一种显示器的边框结构及显示器
CN109087583A (zh) * 2018-10-09 2018-12-25 合肥惠科金扬科技有限公司 一种背板装配结构及显示装置

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CN103267251B (zh) * 2013-06-07 2016-08-10 深圳市华星光电技术有限公司 一种背光模块及液晶模组
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
CN105807488B (zh) * 2016-04-29 2019-09-27 青岛海信电器股份有限公司 背光模组及液晶显示装置
CN105892131A (zh) * 2016-06-23 2016-08-24 奥捷五金(江苏)有限公司 一种无边框显示器及采用其的电子设备
CN110426893A (zh) * 2019-07-17 2019-11-08 深圳市兆驰股份有限公司 液晶显示装置及其直下式背光模组
CN114217476B (zh) * 2021-12-31 2024-02-13 合肥惠科金扬科技有限公司 背板、背光模组及显示装置

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CN202012820U (zh) * 2011-04-15 2011-10-19 深圳市华星光电技术有限公司 液晶显示器及其背光模组
CN102608788A (zh) * 2012-04-06 2012-07-25 深圳市华星光电技术有限公司 用于窄边框液晶显示器的液晶显示模组及其液晶显示器

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CN106652797A (zh) * 2016-11-30 2017-05-10 奥捷科技（厦门）有限公司 一种窄边框显示装置
CN107564411A (zh) * 2017-10-24 2018-01-09 奥捷科技（厦门）有限公司 一种显示器的边框结构及显示器
CN109087583A (zh) * 2018-10-09 2018-12-25 合肥惠科金扬科技有限公司 一种背板装配结构及显示装置
CN109087583B (zh) * 2018-10-09 2024-02-13 合肥惠科金扬科技有限公司 一种背板装配结构及显示装置

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