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WO2013060031A1 - 一种背板、背光模组及液晶显示装置 - Google Patents

一种背板、背光模组及液晶显示装置 Download PDF

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Publication number
WO2013060031A1
WO2013060031A1 PCT/CN2011/081591 CN2011081591W WO2013060031A1 WO 2013060031 A1 WO2013060031 A1 WO 2013060031A1 CN 2011081591 W CN2011081591 W CN 2011081591W WO 2013060031 A1 WO2013060031 A1 WO 2013060031A1
Authority
WO
WIPO (PCT)
Prior art keywords
laminated
side wall
backlight module
liquid crystal
crystal display
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/CN2011/081591
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English (en)
French (fr)
Inventor
周革革
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 US13/375,372 priority Critical patent/US20130107156A1/en
Publication of WO2013060031A1 publication Critical patent/WO2013060031A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133308Support structures for LCD panels, e.g. frames or bezels
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133308Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314Back frames

Definitions

  • the present invention relates to the field of liquid crystal display, and more particularly to a backplane, a backlight module, and a liquid crystal display device.
  • the backlight module is one of the key components of the liquid crystal display panel.
  • the function is to supply a sufficient light source with uniform brightness and uniformity to enable the liquid crystal display device to display images properly.
  • the structure of the liquid crystal backlight module generally includes: a front frame 1, a light guide plate 3, a light source 4, a plastic frame 5, a back plate 6 and a PCB board, and the liquid crystal panel 2 is disposed in the backlight module. Above the group.
  • the structure of the backboard is as shown in FIG. 2, the backboard is rectangular, the side of the board is provided with side walls 61, and other convex and concave structures are arranged on the board for adapting the installation of other components and improving the backboard.
  • the strength of the backlight module and the main components of the backlight module are fixed on the backboard 6.
  • the side wall of the backboard 6 including the back panel 6 has a plurality of structures such as cut-through, convex hull, and buds.
  • Figure 2 Since the side wall of the back plate 6 is bent with respect to the surface of the back plate, the overall strength of the back plate is improved, but the strength of the side wall itself is also increased due to the arrangement of the structure such as cut-through, convex hull, and bud. The amplitude is weakened and the overall strength of the backing plate is weakened. As shown in Fig. 2, the broken line indicates the tendency of the back plate to deform under the impact drop test. If the back plate is deformed, the components in the module may be damaged or the display effect of the display device may be deteriorated.
  • China invention utility model patent CN201548778U the liquid crystal module back plate discloses a back plate structure which is strengthened by the reinforcing ribs on the overall strength of the back plate.
  • the technical scheme of the utility model is to provide reinforcement ribs on the back plate surface.
  • the strength of the rib itself provides a support to the backing plate, which increases the strength of the backing plate.
  • the reinforcement method is to strengthen the strength of the backboard as a whole by strengthening the panel.
  • this method can reduce the amount of the backing material, it causes a few protruding structures on the backing plate, and does not reduce the overall thickness of the backing plate.
  • the technical problem to be solved by the present invention is to provide a backplane having a high structural strength and a backlight module and a liquid crystal display device using the same.
  • a backboard comprising a board surface and a side wall disposed at a side of the board surface, the back board further comprising at least one layer laminated with the side wall. board.
  • the laminated plate is formed after the side wall is bent.
  • the laminated board is formed by the side walls, and the bending portion provides reinforcement only in addition to the reinforcing effect of the laminated board itself.
  • the height of the laminated board is consistent with the height of the side wall. Make sure that the laminate is not placed above the side wall to affect the installation of other components, and that the laminate is of sufficient width to provide sufficient strength.
  • the backboard comprises a laminated board.
  • the strength requirements can be achieved without excessively increasing the footprint of the backplane.
  • the laminate is disposed on two opposite side walls.
  • a laminate is provided on the two opposite side walls of the backsheet to increase the overall strength of the backsheet.
  • the laminate is disposed on all sidewalls of the backsheet.
  • the four side walls of the backboard are reinforced to further enhance the overall strength of the backboard.
  • the laminated plate is disposed on an outer side surface of the side wall.
  • the outer side is easier to machine.
  • the backboard is a plastic structure
  • the laminated board is a metal plate.
  • the back plate of the plastic structure is reinforced by a metal plate, so that the strength of the back plate of the plastic structure is enhanced.
  • a backlight module of the present invention includes the above-mentioned backplane.
  • a liquid crystal display device comprising the above backlight module.
  • at least one layer of the laminated plate disposed on the side wall of the backing plate is disposed on the side wall of the backboard, thereby increasing the thickness of the side wall of the backing plate, so that the strength of the side wall is improved, and the sidewall and the upper side thereof are Under the support of the laminated board, the overall strength of the backboard is further improved; in addition, since the strength of the side wall is improved, the reinforcing ribs are not provided on the surface of the board, and the overall thickness of the backboard is additionally increased to ensure the overall strength of the backboard. This makes it possible to further reduce the thickness of the back sheet, and also makes the liquid crystal display device more thin.
  • 1 is an assembly position of a conventional back sheet in a liquid crystal display device and a cross-sectional structure thereof.
  • Figure 2 is a schematic view showing the trend of deformation of the existing backing plate under the drop impact test.
  • Figure 3 is a cross-sectional view showing the structure of an embodiment of the present invention.
  • FIG. 4 is a view showing the assembly of a back sheet in a liquid crystal display device and a cross-sectional structural view thereof according to an embodiment of the present invention.
  • the structure of the backboard is generally a slotted structure, and the side walls of the backplane are generally provided with side walls.
  • the function of the sidewalls is to provide a mounting base for other components in the backlight module.
  • the sidewalls also improve the overall backplane.
  • the invention further improves the overall strength of the backing plate by further enhancing the reinforcing effect of the side wall, thereby ensuring the strength requirement of the backing plate while reducing the thickness of the backing plate, and saving the material cost of the backing plate.
  • the specific solution is to add a laminated board on the side wall of the backboard to increase the thickness of the sidewall of the backboard, thereby improving the strength of the sidewall, and thus, the overall reinforcement effect of the sidewall to the backboard It is also improved and the overall strength of the backboard is improved.
  • the back plate 6 has a groove-like structure as a whole, and the side edges of the back plate 6 are respectively provided with side walls 61, side walls 61 and back plates. 6 is integrally formed, wherein the outer side of the side wall 61 has a laminated plate 62 laminated thereon, and the laminated plate 62 is directly formed by the side wall 61
  • the flange formed by folding, of course, the laminate 62 may also be a separate component that is laminated to the side wall 61 by screws, rivets, glue, and the like.
  • the laminated plate 62 ie, the flange
  • the laminated plate 62 and the side wall 61 formed by folding are a single piece, and the laminated plate 62 and the side wall 61 are connected by a bend, and the bending structure forms a circular transition at the bend, generally high strength , such as cylindrical, the general strength is higher than the rectangular shape.
  • the arrangement of the laminated board 62 may be a plurality of layers or a layer. In the case of ensuring the strength, it is preferably a layer, and the side wall of the backboard 6 is avoided. Thick, so that the side non-display area of the module is too wide, and the board width of the laminated board 62 is equal to the height of the side wall, thus ensuring the strength of the laminated board 62, and avoiding the excessive width of the laminated board 62 and affecting the backlight module. Installation of other components.
  • the laminated plate 62 may be provided on the inner side surface of the side wall 61 in addition to the outer side of the side wall 61, but it is easier to process or assemble the outer side surface with respect to the inner side surface.
  • the laminated plate 62 may be provided only on the two opposite side walls 61 of the backing plate 6, and of course, in order to increase the strength of the backing plate 6 in the length and width directions, it is preferable to A laminate 62 is added to the four side walls.
  • the strength of the plastic back sheet can be increased by adding a metal-like laminated board having a high material strength, thereby saving a large amount of material cost.

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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)

Abstract

一种背板(6)、背光模组及液晶显示装置,所述背板(6)包括板面及设置在板面侧边的侧壁(61),所述背板(6)还包括至少一层与所述侧壁(61)层叠固定的层叠板(62)。由于在背板的侧壁(61)设置了至少一层与所述侧壁(61)层叠设置的层叠板(62),从而提高了背板侧壁(61)的厚度,使得侧壁(61)的强度得以提高,在侧壁(61)及其上的层叠板(62)的支撑下,进而提高了背板(6)的整体强度;另外,由于侧壁(61)的强度得以提高,避免在板面上设置加强筋而额外增加背板(6)整体厚度,保证了背板(6)的整体强度下,使得进一步减小背板(6)的厚度成为可能,也使得液晶显示装置更趋于薄型化。

Description

一种背板、 背光模组及液晶显示装置
【技术领域】
本发明涉及液晶显示领域, 更具体的说, 涉及一种背板、 背光模组及液晶 显示装置。
【背景技术】
背光模组为液晶显示器面板的关键零组件之一。 功能在于供应充足的亮度 与分布均匀的光源, 使液晶显示装置能正常显示影像。
以图 1所示为例, 液晶背光模组的结构一般包括: 前框 1、 导光板 3、 光源 4、 胶框 5、 背板 6以及 PCB板等部件, 而液晶面板 2则设置在背光模组之上。 其中, 背板的结构如图 2所示, 背板呈长方形, 板边四周设置有侧壁 61 , 在板 上设置有其他的凸出及凹陷结构, 用于适应其他组件的安装以及提高背板本身 的强度, 而背光模组中主要的部件都是固定在背板 6上的, 因此背板 6上包括 背板 6的侧壁相应的要做很多切穿、 凸包、 抽芽等结构 (如图 2所示)。 由于背 板 6 的侧壁本身相对于背板板面呈折弯状, 进而使背板整体强度得以提高, 但 是由于切穿、 凸包、 抽芽等结构的设置, 也使得侧壁本身强度被大幅度减弱, 进而背板整体的强度被减弱。 如图 2所示, 虚线表示在沖击跌落实验下背板发 生变形的趋势, 若背板发生变形将会导致模组内的部件损坏或是造成显示装置 的显示效果变差。
中国发明实用新型专利 CN201548778U—种液晶模组背板公开了一种通过 加强筋对背板整体强度加强的背板结构, 此实用新型的技术方案是通过在背板 板面上设置加强筋, 利用加强筋本身的强度对背板提供一个支撑, 使得背板的 强度得以提高。 其加强方式是通过对板面的加强来整体加强背板的强度。 然而 这种方式虽然能够减少背板材料的用量, 但是却使得背板上多出一些凸出结构, 并不能减小背板的整体厚度。 【发明内容】
本发明所要解决的技术问题是提供一种结构强度较高的背板以及使用该背 板的背光模组及液晶显示装置。
本发明的目的是通过以下技术方案来实现的: 一种背板, 包括板面及设置 在板面侧边的侧壁, 所述背板还包括至少一层与所述侧壁层叠固定的层叠板。
优选的, 所述层叠板为侧壁折弯后形成。 通过侧壁折弯而成, 不必要增加 后期的层叠板组装过程, 另外, 层叠板由侧壁形成, 除了层叠板本身起到的加 强作用为, 折弯处也提供加强作用。
优选的, 所述层叠板的高度与所述侧壁的高度一致。 确保层叠板的设置不 会高于侧壁影响其它组件的安装, 同时, 也确保层叠板具有足够的宽度以使其 强度足够。
优选的, 所述背板包括一层层叠板。 仅设置一层层叠板, 即可达到强度要 求, 又不会过多的增加背板的占用空间。
优选的, 所述层叠板设置在两个相对的所述侧壁上。 对背板的两个相对的 侧壁设置层叠板, 可以提高背板的整体强度。
优选的, 所述层叠板设置在所述背板的所有侧壁上。 对背板的四个侧壁均 起到加强作用, 更进一步提高背板的整体强度。
优选的, 所述层叠板设置在侧壁的外侧面。 外侧面比较容易加工。
优选的, 所述背板为塑胶结构, 所述层叠板为金属板。 通过金属板对塑胶 结构的背板进行加强, 使得塑胶结构的背板强度得到增强。
本发明一种背光模组的目的是通过以下技术方案来实现的: 一种背光模组, 包括了上述的背板。
本发明一种液晶显示装置的目的是通过以下技术方案来实现的: 一种液晶 显示装置, 包括了上述的背光模组。 本发明由于在背板的侧壁设置了至少一层与所述侧壁层叠设置的层叠板, 从而提高了背板侧壁的厚度, 使得侧壁的强度得以提高, 在侧壁及其上的层叠 板的支撑下, 进而提高了背板的整体强度; 另外, 由于侧壁的强度得以提高, 避免在板面上设置加强筋而额外增加背板整体厚度, 保证了背板的整体强度下, 使得进一步减小背板的厚度成为可能, 也使得液晶显示装置更趋于薄型化。
【附图说明】
图 1是现有背板在液晶显示装置中的组装位置以及其截面结构。
图 2是现有背板在跌落沖击实验下变形的趋势示意图,
图 3是本发明实施例的结构截面图,
图 4是本发明实施例的背板在液晶显示装置中的组装及其截面结构图。 其中: 1、前框; 2、液晶面板; 3、导光板; 4、光源; 5、胶框; 6、 背板; 7、 PCB板; 61、 侧壁; 62、 层叠板。
【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。
背板的结构一般呈槽形结构, 在背板的侧边也一般设置有侧壁, 侧壁的作 用在于提供背光模组中其它组件的安装基础, 另外, 侧壁还起到提高背板整体 强度的作用。 本发明通过更进一步提高侧壁的加强作用, 来进一步提高背板的 整体强度, 从而可以在减小背板厚度的情况下保证了背板的强度需求, 节约了 背板的材料成本。 具体的方案是, 在背板的侧壁上再加上一层层叠板, 以此来 提高背板的侧壁厚度, 从而提高了侧壁的强度, 这样, 侧壁对背板的整体加强 作用也得以提高, 背板的整体强度也就得以提高。
如图 3及图 4所示为本发明的具体实施例, 如图中所示, 背板 6整体呈槽 状结构, 背板 6的侧边分别设置有侧壁 61 , 侧壁 61与背板 6是整体成型的, 其 中, 侧壁 61的外侧有一与之层叠设置的层叠板 62, 该层叠板 62为侧壁 61直接 翻折形成的翻边, 当然, 该层叠板 62也可以是一个单独的零件, 通过螺釘, 铆 釘、 胶水以及其它方式层叠固定到侧壁 61上。 值得一提的是, 通过侧壁直接翻 折形成的层叠板 62 (即所述翻边)在结构上优于通过其它方式(即将单独作为 构件的层叠板锁附或粘接上去的形式), 因为, 通过翻折形成的层叠板 62与侧 壁 61为一整体件, 并且层叠板 62与侧壁 61通过折弯处连接, 而折弯结构在折 弯处形成圓形过渡, 一般强度较高, 如圓柱形一般强度要高于长方形。
在本实施例中, 对于层叠板 62的设置, 可以是多层的, 也可以是一层的, 在保证了强度的情况下, 最好是一层较好, 避免背板 6 的侧壁过厚, 从而造成 模组的侧边非显示区过宽, 同时层叠板 62的板宽度与侧壁的高度相等, 这样确 保层叠板 62的强度, 又避免层叠板 62过宽而影响背光模组中其它组件的安装。 层叠板 62除了设置在侧壁 61的外侧外, 也可以设置在侧壁 61的内侧面, 但是 设置在外侧面相对于设置在内侧面较为容易加工或组装。 在达到强度需求的情 况下, 可以只在背板 6的两个相对的侧壁 61上设置层叠板 62, 当然, 为了使背 板 6在长和宽的方向的强度均得以提高, 最好在 4个侧壁上都添加层叠板 62。
另外, 对于一些背板, 如采用塑胶材料的背板, 可以通过增加材料强度高 的如金属的层叠板来提高塑胶背板的强度, 从而可以节约大量的材料成本。
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、 一种背板, 包括: 板面, 设置在板面侧边的侧壁, 以及至少一层与所述 侧壁层叠固定的层叠板。
2、 如权利要求 1所述的一种背板, 其特征在于, 所述层叠板为侧壁翻折后 形成的翻边。
3、 如权利要求 1所述的一种背板, 其特征在于, 所述层叠板的高度与所述 侧壁的高度一致。
4、如权利要求 1所述的一种背板, 其特征在于, 所述背板包括一层层叠板。
5、 如权利要求 1所述的一种背板, 其特征在于, 所述层叠板设置在两个相 对的所述侧壁上。
6、 如权利要求 1所述的一种背板, 其特征在于, 所述层叠板设置在所述背 板的所有侧壁上。
7、 如权利要求 1所述的一种背板, 其特征在于, 所述层叠板设置在侧壁的 夕卜侧面。
8、 如权利要求 1所述的一种背板, 其特征在于, 所述背板为塑胶结构, 所 述层叠板为金属板。
9、 一种背光模组, 包括如 1所述的背板, 所述背板包括: 板面, 设置在板 面侧边的侧壁, 以及至少一层与所述侧壁层叠固定的层叠板。
10、 如权利要求 9所述的一种背光模组, 其特征在于, 所述层叠板为侧壁 翻折后形成的翻边。
11、 如权利要求 9所述的一种背光模组, 其特征在于, 所述层叠板的高度 与所述侧壁的高度一致。
12、 如权利要求 9所述的一种背光模组, 其特征在于, 所述背板包括一层 层叠板。
13、 如权利要求 9所述的一种背光模组, 其特征在于, 所述层叠板设置在 两个相对的所述侧壁上。
14、 如权利要求 9所述的一种背光模组, 其特征在于, 所述层叠板设置在 所述背板的所有侧壁上。
15、 如权利要求 9所述的一种背光模组, 其特征在于, 所述层叠板设置在 侧壁的外侧面。
16、 如权利要求 9所述的一种背光模组, 其特征在于, 所述背板为塑胶结 构, 所述层叠板为金属板。
17、 一种液晶显示装置, 包括如权利要求 9所述的背光模组, 所述背光模 组包括背板, 所述背板包括: 板面, 设置在板面侧边的侧壁, 以及至少一层与 所述侧壁层叠固定的层叠板。
18、 如权利要求 17所述的一种液晶显示装置, 其特征在于, 所述层叠板为 侧壁翻折后形成的翻边。
19、 如权利要求 17所述的一种液晶显示装置, 其特征在于, 所述层叠板的 高度与所述侧壁的高度一致。
20、 如权利要求 17所述的一种液晶显示装置, 其特征在于, 所述背板包括 一层层叠板。
21、 如权利要求 17所述的一种液晶显示装置, 其特征在于, 所述层叠板设 置在两个相对的所述侧壁上。
22、 如权利要求 17所述的一种液晶显示装置, 其特征在于, 所述层叠板设 置在所述背板的所有侧壁上。
23、 如权利要求 17所述的一种液晶显示装置, 其特征在于, 所述层叠板设 置在侧壁的外侧面。
24、 如权利要求 17所述的一种液晶显示装置, 其特征在于, 所述背板为塑 胶结构, 所述层叠板为金属板。
PCT/CN2011/081591 2011-10-27 2011-10-31 一种背板、背光模组及液晶显示装置 Ceased WO2013060031A1 (zh)

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