WO2014075356A1 - 背光模组及其保护盖、液晶显示装置 - Google Patents

背光模组及其保护盖、液晶显示装置 Download PDF

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Publication number
WO2014075356A1
WO2014075356A1 PCT/CN2012/085402 CN2012085402W WO2014075356A1 WO 2014075356 A1 WO2014075356 A1 WO 2014075356A1 CN 2012085402 W CN2012085402 W CN 2012085402W WO 2014075356 A1 WO2014075356 A1 WO 2014075356A1
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WIPO (PCT)
Prior art keywords
protective cover
plate
cover body
backlight module
holding plate
Prior art date
Application number
PCT/CN2012/085402
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English (en)
French (fr)
Inventor
陈仕祥
俞刚
王甲强
Original Assignee
深圳市华星光电技术有限公司
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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 US13/806,885 priority Critical patent/US9429793B2/en
Publication of WO2014075356A1 publication Critical patent/WO2014075356A1/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
    • 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

Definitions

  • the present invention relates to the field of liquid crystal display, and more particularly to a protective cover, a backlight module and a liquid crystal display device for a backlight module. Background technique
  • the protective cover of the backlight module is a plate member for fastening to the module back plate, and is mainly used for protecting components in the backlight module, such as a PCB board.
  • the assembly of the existing backlight module cover is generally independent of the assembly of the entire module.
  • FIG. 5 it is a three-dimensional structure diagram of a protective cover of a backlight module in the prior art, wherein the protective cover 9 has a cubic cavity, and the side of the protective cover 9 having a cavity can face the back panel of the backlight module. One side is locked and installed.
  • the locking of the protective cover 9 and the module back plate is implemented as follows:
  • the protective cover 9 respectively extends from the peripheral end corners of the opening of the cavity to a connecting plate 92 perpendicular to the side wall 91 of the protective cover 9, and is connected.
  • a plurality of screw holes 93 are provided in the plate 92.
  • the back plate is provided with a screw hole adapted to the position of the plurality of screw holes 93.
  • the assembly of the protective cover 9 and the module back plate is realized by locking the screw, that is, locking the screw to the screw hole 93 of the protective cover 9 and the corresponding position of the back plate.
  • the traditional structural protective cover, and its assembly with the backing plate has the following drawbacks:
  • the technical problem to be solved by the present invention is to provide a protective cover, a backlight module and a liquid crystal display device for a backlight module, which can complete the overall assembly process of the backlight module, save material and man-hours, and further improve the module. Assembly efficiency.
  • a protective cover of a backlight module for protecting components in a backlight module wherein the protective cover includes:
  • a clamping plate disposed on at least one end of the protection cover body, the clamping plate being lockable in a slot between the backlight module back plate and the front frame for fastening the protective cover On the back panel.
  • the holding plate defines a fixing hole for the screw to pass through
  • the fixing holes are correspondingly matched with the screw holes formed in the front frame and the back plate.
  • the holding plate is bent and disposed on opposite ends of the protective cover body.
  • the protective cover body has a square shape, and a screw hole for fastening the back plate is disposed at a plurality of places.
  • the end of the holding plate is bent and provided with a hook for holding in the card slot of the backboard.
  • the holding plate is bent and disposed on opposite ends of the protective cover body.
  • the protective cover body has a square shape, and a screw hole for fastening the back plate is disposed at a plurality of places.
  • a backlight module comprising at least a backboard, a front frame, a plastic frame and a protective cover, wherein the back plate has a bottom plate and a side plate perpendicular to each other.
  • the front frame is wrapped in the outer periphery of the plastic frame, and the side plate is fastened in the insertion cavity of the plastic frame
  • the protective cover comprises:
  • a clamping plate disposed on at least one end of the protective cover body, wherein the holding plate is locked in a slot between the back plate and the front frame, and the protective cover is The backing plate is fastened.
  • the holding plate defines a fixing hole for the screw to pass through
  • the screw passes through the screw hole in the corresponding position of the front frame, the fixing hole and the screw hole on the back plate to lock the holding plate in the cavity.
  • the plurality of places on the protective cover body are used to fasten the screw holes of the backboard, and the protection A cover body is fastened to the bottom plate of the backboard.
  • the end of the holding plate is bent and provided with a hook, and the hook is locked in the slot formed by the backboard to lock the holding plate in the cavity.
  • a plurality of places on the protective cover body are used to fasten the screw holes of the back plate, and the protective cover body is fastened on the bottom plate of the back plate.
  • liquid crystal display device wherein the liquid crystal display device includes a backlight module, wherein the backlight module includes at least a back plate, a front frame, a plastic frame, and protection. a cover having a bottom plate and a side plate that are perpendicular to each other, the front frame is wrapped around the outer periphery of the plastic frame, and the side plate is fastened in the insertion cavity of the plastic frame, wherein Protective covers include:
  • a clamping plate disposed on at least one end of the protective cover body, wherein the holding plate is locked in a slot between the back plate and the front frame, and the protective cover is The backing plate is fastened.
  • the holding plate defines a fixing hole for the screw to pass through
  • the screw passes through the screw hole in the corresponding position of the front frame, the fixing hole and the screw hole on the back plate to lock the holding plate in the cavity.
  • a plurality of places on the protective cover body are used to fasten the screw holes of the back plate, and the protective cover body is fastened on the bottom plate of the back plate.
  • the end of the holding plate is bent and provided with a hook, and the hook is locked in the slot formed by the backboard to lock the holding plate in the cavity.
  • the plurality of places on the protective cover body are used to fasten the screw holes of the back plate, and the protective cover body is fastened on the bottom plate of the back plate.
  • the backlight module and the protective cover and the liquid crystal display device provided by the invention have the following beneficial effects:
  • the protective cover includes a clamping plate which is bent and disposed on at least one end of the protective cover body, and can be locked in the backlight module In the cavity between the back plate and the front frame, the protective cover is fastened to the back plate.
  • the protective cover of the structure can greatly reduce the number of screw holes opened on the protective cover body, reduce processing difficulty and save material cost; reasonable structure, cylindrical assembly process, and further improve assembly efficiency.
  • FIG. 1 is a schematic structural view of a backlight module according to Embodiment 1 of the present invention after assembling a protective cover.
  • FIG. 2 is a schematic perspective view of a protective cover of a backlight module according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic structural view of a backlight module according to Embodiment 2 of the present invention after assembling a protective cover.
  • FIG. 4 is a perspective structural view of a protective cover of a backlight module according to Embodiment 2 of the present invention.
  • FIG. 5 is a schematic perspective view of a protective cover of a backlight module in the prior art. detailed description
  • the backlight module in this embodiment includes a backboard 1, a front frame 2, a plastic frame 3, and a protective cover 5. As shown
  • FIG. 1 is a schematic cross-sectional view of the backlight module of the present embodiment after the protective cover is assembled.
  • the back panel 1 includes a bottom plate 11 and a side plate 12 which are perpendicular to each other, and an assembly space for accommodating other backlight assemblies is formed inside the back plate.
  • the back panel 1, the front frame 2, and the plastic frame 3 are sequentially assembled to lock other backlight components.
  • the front frame 2 is a plate having a rectangular cross section, which is wrapped around the outer periphery of the bezel 3, the front frame
  • the plastic frame 3 has a socket 31 for fastening the side plate 12 of the back plate 1.
  • the insertion cavity 31 is located at the end side of the plastic frame 3, and the side plate 12 of the back plate 1 is inserted therein and is common with the plastic frame 3.
  • the backlight portion 7 is pressed.
  • the backlight member 7 includes at least a diffusion plate, a prism, a diffusion plate, and a light guide plate.
  • a side wall 22 of the front frame 2 is substantially parallel to the side plate 12 of the back panel 1, and a cavity 4 for pre-installing the protective cover 5 is formed therebetween.
  • the cavity 4 is a slit-shaped slit for holding the protective cover 5 pre-mounted on the module.
  • the pre-installation structure between the protective cover 5 and the cavity 4 is implemented as follows:
  • the protective cover 5 includes a protective cover body 51 and a holding plate 52 bent on at least one end of the protective cover body 51 .
  • the protective cover body 51 is a substantially square plate member, and a screw hole for fastening the back plate 1 is provided at a plurality of places, such as a screw hole 511 as shown. Since the screw hole 511 can be directly disposed on the protective cover body 51 in the shape of a plate, it is possible to save the use of the protective cover without additionally providing a connecting member. In addition, since the protective cover 5 and the back plate 1 are pre-installed, the number of screw holes formed in the protective cover body 51 can be greatly reduced, and the series of processes such as processing and mounting can be reduced on the basis of maintaining a reliable connection.
  • the holding plate 52 is a plate member which is disposed at a distance between the two ends of the protective cover body 51 as shown in the left end of the protective cover body 51.
  • the two plate members are perpendicular to the protective cover body 51 and have the same shape and are square.
  • a pre-mounting fixing hole 521 is formed in each of the holding plates 52. Screw holes 221, 121 are respectively formed at corresponding positions of the front frame side panel 22 and the back panel 1 side panel 12. When the holding plate 52 is inserted into the cavity 4, the fixing hole 521 is in line with the central axis of the screw holes 221, 121 formed in the front frame 2 and the back plate 1.
  • the holding plate 52 is inserted into the cavity 4, and the screws 8 are respectively inserted through the screw holes 221, the fixing holes 521 and the screw holes 121, and then locked, and the holding plate 52 is locked in the cavity 4.
  • the protective cover 5 and the backing plate 1 are also pre-fastened accordingly.
  • the screw hole 511 on the protective cover body 51 can also overlap with other mounting holes (not shown) on the backboard 1.
  • the protective cover 5 and the backboard can be strengthened by the screwing of the single sleeve. 1 connection reliability.
  • the above-mentioned holding structure can be respectively disposed at both ends of the protective cover 5 and the back plate 1. Thus, it is not necessary to provide a corresponding locking structure on the protective cover body 51 and the back plate 1.
  • the pre-installation structure between the protective cover 5 and the back plate 1 integrates the assembly of the protective cover 5 and the assembly of the module, thereby saving material and tube processing and further improving assembly efficiency.
  • the second embodiment of the backlight module of the present invention is assembled with a protective cover.
  • the difference between this embodiment and the first embodiment is that the locking mounting structure between the protective cover 5 and the cavity 4 is implemented as follows:
  • the holding plate 52 is provided with two hooks 522 bent on both sides of the end portion thereof, and two card slots 122 are respectively formed at corresponding positions of the side plates 12 of the back plate 1.
  • the hooks 522 can be respectively held in the card slots 122.
  • the screw hole 511 of the protective cover body 51 can also coincide with other mounting holes (not shown) on the back plate 1, and the reinforcing cover 5 and the back plate 1 are reinforced by a screw connection. Connection reliability. It can be understood that, in order to further save material and installation process, the holding structure in this embodiment can be respectively disposed at both ends of the protective cover 5 and the backboard 1, so that it is not necessary to protect the cover body 51 and the backboard 1 Open the corresponding locking structure.
  • the invention also discloses a liquid crystal display device comprising the above backlight module.
  • the liquid crystal display device of the present invention can be implemented in any of the above embodiments of the backlight module, and details are not described herein.
  • a backlight module, a protective cover thereof, and a liquid crystal display device of the present invention are provided.
  • the protective cover includes a holding plate that is bent and disposed on at least one end of the protective cover body, and is lockable on the back panel and the front frame of the backlight module. In the inter-cavity, the protective cover is fastened to the back plate.
  • the protective cover of the structure can greatly reduce the number of screw holes formed on the protective cover body, reduce the processing difficulty and save material cost; the structure is reasonable, the assembly process is completed, and the assembly efficiency is further improved.

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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

一种背光模组的保护盖（5），用于保护背光模组中的元器件。保护盖（5）包括保护盖本体（51）和卡持板（52）。卡持板（52）弯折设置在保护盖本体（51）至少一端部上。卡持板（52）可锁紧在背光模组背板（1）和前框（2）之间的槽腔（4）中，用以紧固保护盖（5）在背板（1）上。还公开了一种背光模组及液晶显示装置。该保护盖能够简化背光模组的整体组装工序，节省材料和工时，进一步提升模组的组装效率。

Description

背光模组及其保护盖、 液晶显示装置 本申请要求于 2012 年 11 月 14 日提交中国专利局、 申请号为 201210455801.8、 发明名称为 "背光模组及其保护盖、 液晶显示装置" 的中 国专利申请的优先权， 上述专利的全部内容通过引用结合在本申请中。 技术领域
本发明涉及液晶显示领域， 尤其涉及一种用于背光模组的保护盖、 背光 模组及液晶显示装置。 背景技术
背光模组的保护盖是用于与模组背板相紧固的板件， 其主要用于保护背 光模组中的元器件， 如 PCB板等。 现有背光模组保护盖的组装通常独立于 整个模组的组装。 如图 5所示， 为现有技术中背光模组保护盖的立体结构示 意图， 其中， 保护盖 9为呈立方状凹腔， 保护盖 9具有凹腔的一侧可朝向背 光模组背板的一侧锁紧安装。
保护盖 9与模组背板的锁固是通过如下方式实施的： 保护盖 9在其凹腔 开口的四周端角上分别延伸出与保护盖 9四周侧壁 91相垂直的连接板 92, 连接板 92上设有多个螺孔 93。此外， 背板对应该多个螺孔 93的位置上设有 与其相适配的螺孔。
在模组全部组装完成后， 通过锁固螺丝的方式， 即将螺丝锁紧在保护盖 9螺孔 93和背板相应位置上的螺孔中实现保护盖 9与模组背板的组装。传统 结构的保护盖， 及其与背板的组装方式具有如下缺陷：
1、 由于保护盖 9的组装独立于背光模组的组装， 需要模组的全部零部 件组装完毕后才能进行保护盖的锁紧作业， 导致整体组装工序繁瑣， 费时费 力， 且在保护盖上耗费的材料较多。
2、 为加强连接可靠性， 需要在保护盖 9开设较多的螺孔 94用以组装， 不利于工序的精筒以及产品的产出。 发明内容
本发明所要解决的技术问题在于， 提供一种用于背光模组的保护盖、 背 光模组及液晶显示装置， 能够筒化背光模组的整体组装工序， 节省材料和工 时； 进一步提升模组的组装效率。
为了解决上述技术问题， 本发明采用的一种技术方案： 一种背光模组的 保护盖， 用于保护背光模组中的元器件， 其中， 所述保护盖包括：
保护盖本体；
弯折设置在所述保护盖本体至少一端部上的卡持板， 所述卡持板可锁紧 在背光模组背板和前框之间的槽腔中， 用以紧固所述保护盖在背板上。
其中， 所述卡持板上开设用于供螺丝穿过的固定孔；
当所述卡持板插置到背光模组背板和前框之间的所述槽腔中时， 所述固 定孔与前框和背板上开设的螺孔对应适配。
其中， 所述卡持板弯折设置在所述保护盖本体相对的两端部上。
其中， 所述保护盖本体呈方状， 其上多处设置有用以紧固背板的螺孔。 其中，所述卡持板的端部弯折设有卡勾，用以卡持在背板具有的卡槽中。 其中， 所述卡持板弯折设置在所述保护盖本体相对的两端部上。
其中， 所述保护盖本体呈方状， 其上多处设置有用以紧固背板的螺孔。 为解决上述技术问题， 本发明采用的另一种技术方案： 一种背光模组， 至少包括背板、 前框、 胶框以及保护盖， 所述背板具有相互垂直的底板和侧 板， 所述前框包覆在所述胶框的外周， 所述侧板紧固在所述胶框具有的插腔 中， 其中， 所述保护盖包括：
保护盖本体；
弯折设置在所述保护盖本体至少一端部上的卡持板， 其中， 所述卡持板 锁紧在所述背板和所述前框之间的槽腔中， 将所述保护盖与所述背板紧固。
其中， 所述卡持板上开设用于供螺丝穿过的固定孔；
螺丝穿过所述前框相应位置上的螺孔、 所述固定孔及所述背板上的螺 孔， 将所述卡持板锁紧在所述腔槽中。
其中， 所述保护盖本体上的多处设置又用以紧固背板的螺孔， 所述保护 盖本体紧固在所述背板的所述底板上。
其中， 所述卡持板的端部弯折设有卡勾， 所述卡勾卡持在所述背板开设 的卡槽中， 将所述卡持板锁紧在所述腔槽中。
其中， 所述保护盖本体上的多处设置又用以紧固背板的螺孔， 所述保护 盖本体紧固在所述背板的所述底板上。
为解决上述技术问题，本发明采用的另一技术方案：一种液晶显示装置， 所述液晶显示装置包括背光模组，其中，所述背光模组至少包括背板、前框、 胶框以及保护盖， 所述背板具有相互垂直的底板和侧板， 所述前框包覆在所 述胶框的外周， 所述侧板紧固在所述胶框具有的插腔中， 其中， 所述保护盖 包括：
保护盖本体；
弯折设置在所述保护盖本体至少一端部上的卡持板， 其中， 所述卡持板 锁紧在所述背板和所述前框之间的槽腔中， 将所述保护盖与所述背板紧固。
其中， 所述卡持板上开设用于供螺丝穿过的固定孔；
螺丝穿过所述前框相应位置上的螺孔、 所述固定孔及所述背板上的螺 孔， 将所述卡持板锁紧在所述腔槽中。
其中， 所述保护盖本体上的多处设置又用以紧固背板的螺孔， 所述保护 盖本体紧固在所述背板的所述底板上。
其中， 所述卡持板的端部弯折设有卡勾， 所述卡勾卡持在所述背板开设 的卡槽中， 将所述卡持板锁紧在所述腔槽中。
其中， 所述保护盖本体上的多处设置又用以紧固背板的螺孔， 所述保护 盖本体紧固在所述背板的所述底板上
本发明所提供的背光模组及其保护盖、 液晶显示装置， 具有如下有益效 果： 由于保护盖包括弯折设置在保护盖本体至少一端部上的卡持板， 其可锁 紧在背光模组背板和前框之间的槽腔中， 将保护盖与背板紧固。 该结构的保 护盖在保证可靠连接的基础上， 可以大幅减少开设在保护盖本体上螺孔的数 量， 降低加工难度、 节约材料成本； 结构合理， 筒化装配工序， 进一步提升 装配效率。 附图说明
图 1是本发明实施例一的背光模组在组装保护盖后的结构示意图。
图 2是本发明实施例一的背光模组保护盖的立体结构示意图。
图 3是本发明实施例二的背光模组在组装保护盖后的结构示意图。
图 4是本发明实施例二的背光模组保护盖的立体结构示意图。
图 5是现有技术中背光模组保护盖的立体结构示意图。 具体实施方式
下面参考附图对本发明的优选实施例进行描述。
结合参见图 1、 图 2所示， 为本发明背光模组组装有保护盖的实施例一。 本实施例中的背光模组包括背板 1、 前框 2、胶框 3以及保护盖 5。 如图
1所示， 为本实施例背光模组组装保护盖后的截面结构示意图。
背板 1包括底板 11和侧板 12, 底板 11和侧板 12相互垂直， 在背板的 内部形成用于容置其它背光组件的装配空间。
背板 1、 前框 2以及胶框 3顺序组装后可锁固其它的背光组件。
具体地， 前框 2为截面呈直角状的板材， 其包覆在胶框 3的外周， 前框
2与背板 1大致平行的一侧壁 21和胶框 3共同抵压液晶玻璃 6。胶框 3具有 用于供背板 1的侧板 12紧固的插腔 31 , 插腔 31位于胶框 3的端侧， 背板 1 的侧板 12插置在其中后与胶框 3共同 4氏压背光部材 7。背光部材 7在本实施 例中至少包括扩散板， 棱镜， 扩散板及导光板。
前框 2的一侧壁 22与背板 1的侧板 12大致平行， 两者间形成用于预安 装保护盖 5的槽腔 4。 腔槽 4为一狭长状的缝隙， 可对预安装在模组上的保 护盖 5进行卡持。
保护盖 5与腔槽 4间的预安装结构是通过如下方式实施的：
参见图 2, 为背光模组保护盖的立体结构示意图， 保护盖 5包括保护盖 本体 51和弯折设置在保护盖本体 51至少一端部上的卡持板 52。
本实施例中， 保护盖本体 51是大致呈方状的板件， 在其上多处设有用 以紧固背板 1的螺孔， 如图示中的螺孔 511。 由于该螺孔 511可以在呈板状 的保护盖本体 51上直接设置， 无需额外设置连接件， 可以节省使用保护盖 的工程材料； 此外， 由于保护盖 5和背板 1采用预安装， 可以大大减少在保 护盖本体 51上开设螺孔的数量， 保持可靠连接的基础上， 降低了加工、 安 装等一系列工序。
卡持板 52为设置在保护盖本体 51如图所述左端部的两块间隔一定距离 的板件， 两板件垂直于保护盖本体 51 , 且形状相同， 均呈方状。
在卡持板 52上分别各开设一个预安装用的固定孔 521。在上述前框侧板 22、 及背板 1侧板 12的相应位置上分别开设螺孔 221 , 121。 当卡持板 52 插置到槽腔 4中后， 固定孔 521与前框 2和背板 1上开设的螺孔 221 , 121 的中心轴线在同一直线上。
装配时， 卡持板 52插置在槽腔 4中， 螺丝 8分别穿过螺孔 221、 固定孔 521及螺孔 121后锁紧， 将卡持板 52锁紧在腔槽 4中。 这样， 也相应完成了 保护盖 5与背板 1预紧固。
预紧固后， 保护盖本体 51上的螺孔 511也就能够与背板 1上的其它安 装孔位（图未示）重合， 通过筒单的螺固， 便可加强保护盖 5与背板 1的连 接可靠性。
可以理解的是， 为进一步节省材料和安装工序， 可以在保护盖 5和背板 1 的两端分别设置上述卡持结构。 这样， 就无需在保护盖本体 51 和背板 1 上开设相应的锁固结构。
保护盖 5与背板 1间的预安装结构，使保护盖 5的组装与模组的组装融 为一体， 能够节省材料， 筒化工序， 进一步提升装配的效率。
结合参见图 3、 图 4所示， 为本发明背光模组组装有保护盖的实施例二。 本实施例与上述实施例一的区别在于，保护盖 5与腔槽 4间的锁紧安装 结构是通过如下方式实施的：
卡持板 52在其端部的两侧弯折设有两个卡勾 522,而在上述背板 1侧板 12的相应位置上分别开设有两个卡槽 122。 装配中， 当卡持板 52插置在槽 腔 4中时， 卡勾 522便可分别卡持在卡槽 122中。 这样， 也就相应完成了保 护盖 5与背板 1之间的预紧固。
在紧固后， 保护盖本体 51上具有的螺孔 511同样能够与背板 1上的其 它安装孔位（图未示）相重合， 通过螺固连接， 加强保护盖 5与背板 1之间 的连接可靠性。 可以理解的是， 为进一步节省材料和安装工序， 可以在保护 盖 5和背板 1的两端分别设置该实施例中的卡持结构， 这样， 就无需在保护 盖本体 51和背板 1上开设相应的锁固结构。
本发明还公开了一种液晶显示装置， 包括上述背光模组。 本发明液晶显 示装置可按上述背光模组的任一实施方式实施， 不再赘述。
实施本发明的背光模组及其保护盖、 液晶显示装置， 由于保护盖包括弯 折设置在保护盖本体至少一端部上的卡持板， 其可锁紧在背光模组背板和前 框之间的槽腔中， 将保护盖与背板紧固。 该结构的保护盖在保证可靠连接的 基础上， 可以大幅减少开设在保护盖本体上螺孔的数量， 降低加工难度、 节 约材料成本； 结构合理， 筒化装配工序， 进一步提升装配效率。
以上所揭露的仅为本发明较佳实施例而已， 当然不能以此来限定本发明 之权利范围， 因此等同变化， 仍属本发明所涵盖的范围。

Claims

权 利 要 求
1、 一种背光模组的保护盖， 用于保护背光模组中的元器件， 其中， 所 述保护盖包括：
保护盖本体；
弯折设置在所述保护盖本体至少一端部上的卡持板， 所述卡持板可锁紧 在背光模组背板和前框之间的槽腔中， 用以紧固所述保护盖在背板上。
2、 如权利要求 1所述的保护盖， 其中， 所述卡持板上开设用于供螺丝 穿过的固定孔；
当所述卡持板插置到背光模组背板和前框之间的所述槽腔中时， 所述固 定孔与前框和背板上开设的螺孔对应适配。
3、 如权利要求 2所述的保护盖， 其中， 所述卡持板弯折设置在所述保 护盖本体相对的两端部上。
4、 如权利要求 2所述的保护盖， 其中 , 所述保护盖本体呈方状， 其上 多处设置有用以紧固背板的螺孔。
5、 如权利要求 2所述的保护盖， 其中， 所述卡持板的端部弯折设有卡 勾， 用以卡持在背板具有的卡槽中。
6、 如权利要求 5所述的保护盖， 其中， 所述卡持板弯折设置在所述保 护盖本体相对的两端部上。
7、 如权利要求 5所述的保护盖， 其中， 所述保护盖本体呈方状， 其上 多处设置有用以紧固背板的螺孔。
8、 一种背光模组， 至少包括背板、 前框、 胶框以及保护盖， 所述背板 具有相互垂直的底板和侧板， 所述前框包覆在所述胶框的外周， 所述侧板紧 固在所述胶框具有的插腔中， 其中， 所述保护盖包括：
保护盖本体；
弯折设置在所述保护盖本体至少一端部上的卡持板， 其中， 所述卡持板 锁紧在所述背板和所述前框之间的槽腔中， 将所述保护盖与所述背板紧固。
9、 如权利要求 8所述的背光模组， 其中， 所述卡持板上开设用于供螺 丝穿过的固定孔；
螺丝穿过所述前框相应位置上的螺孔、 所述固定孔及所述背板上的螺 孔， 将所述卡持板锁紧在所述腔槽中。
10、 如权利要求 9所述的背光模组， 其中， 所述保护盖本体上的多处设 置又用以紧固背板的螺孔， 所述保护盖本体紧固在所述背板的所述底板上。
11、 如权利要求 8所述的背光模组， 其中， 所述卡持板的端部弯折设有 卡勾， 所述卡勾卡持在所述背板开设的卡槽中， 将所述卡持板锁紧在所述腔 槽中。
12、 如权利要求 11所述的背光模组， 其中， 所述保护盖本体上的多处 设置又用以紧固背板的螺孔， 所述保护盖本体紧固在所述背板的所述底板 上。
13、 一种液晶显示装置， 所述液晶显示装置包括背光模组， 其中， 所述 背光模组至少包括背板、 前框、 胶框以及保护盖， 所述背板具有相互垂直的 底板和侧板， 所述前框包覆在所述胶框的外周， 所述侧板紧固在所述胶框具 有的插腔中， 其中， 所述保护盖包括：
保护盖本体；
弯折设置在所述保护盖本体至少一端部上的卡持板， 其中， 所述卡持板 锁紧在所述背板和所述前框之间的槽腔中， 将所述保护盖与所述背板紧固。
14、 如权利要求 13所述的液晶显示装置， 其中， 所述卡持板上开设用 于供螺丝穿过的固定孔；
螺丝穿过所述前框相应位置上的螺孔、 所述固定孔及所述背板上的螺 孔， 将所述卡持板锁紧在所述腔槽中。
15、 如权利要求 14所述的液晶显示装置， 其中， 所述保护盖本体上的 多处设置又用以紧固背板的螺孔， 所述保护盖本体紧固在所述背板的所述底 板上。
16、 如权利要求 13所述的液晶显示装置， 其中， 所述卡持板的端部弯 折设有卡勾， 所述卡勾卡持在所述背板开设的卡槽中， 将所述卡持板锁紧在 所述腔槽中。
17、 如权利要求 16所述的液晶显示装置， 其中， 所述保护盖本体上的 多处设置又用以紧固背板的螺孔， 所述保护盖本体紧固在所述背板的所述底 板上。
PCT/CN2012/085402 2012-11-14 2012-11-28 背光模组及其保护盖、液晶显示装置 WO2014075356A1 (zh)

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