WO2013071647A1 - 一种框架式背板、背光模组和液晶显示装置 - Google Patents
一种框架式背板、背光模组和液晶显示装置 Download PDFInfo
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- WO2013071647A1 WO2013071647A1 PCT/CN2011/083184 CN2011083184W WO2013071647A1 WO 2013071647 A1 WO2013071647 A1 WO 2013071647A1 CN 2011083184 W CN2011083184 W CN 2011083184W WO 2013071647 A1 WO2013071647 A1 WO 2013071647A1
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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
- G02F1/133308—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 frame type back panel, a backlight module, and a liquid crystal display device.
- the liquid crystal display device comprises a liquid crystal panel and a backlight module, and the back of the backlight module has a back plate for sealing the module and fixing the in-mold component.
- the existing backsheets all use a monolithic backsheet, which is generally integrally formed by metal stamping or plastic injection, which makes the product relatively heavy and the material cost of the product is relatively high.
- the cost is higher due to the use of larger stamping equipment, and the corresponding mold size is large, the structure is complicated, and the mold cost is also high.
- the material cost saving and the assembly process are an important direction for designers.
- the existing backplane has developed a hollow or spliced backplane design on the overall backplane design, which reduces the cost to a certain extent, but the splicing or hollowing causes the backboard strength to decrease, thereby making the original backplane fixed.
- the PCB board is not easy to change.
- the technical problem to be solved by the present invention is to provide a high-strength frame type back sheet, a backlight module, and a liquid crystal display device.
- a frame type backboard includes a frame, the frame including a plurality of brackets spliced to each other, and the brackets are provided with solid reinforcing ribs at the splicing.
- the bracket on one side of the frame is provided with a solid boss at the splicing portion to form the solid rib; the bracket on the other side of the frame is provided with a groove matching the solid rib at the splicing portion. After the two brackets are spliced, the solid reinforcing ribs are embedded in the grooves.
- the reinforcing rib on one side of the splicing is a solid boss, and the other side of the splicing is a groove, so that when the two brackets are spliced, the boss is embedded in the groove, while increasing the splicing strength of the two brackets , does not increase the thickness of the splicing.
- the groove is provided on both sides with a solid groove wall to form the solid reinforcing rib.
- the grooved walls at both ends of the groove have a solid structure, which can further enhance the splicing strength of the two brackets.
- the bracket on one side of the frame is integrally provided with a solid boss, which is equivalent to a solid reinforcing rib extending through the entire bracket, which can greatly enhance the strength of the bracket itself and make the backboard stronger.
- the brackets on both sides of the frame are respectively provided with solid bosses at the splicing portions to form the solid reinforcing ribs, so that the two brackets are spliced in two planes at the splicing, and the flatness of the splicing is relatively high.
- the rib has a trapezoidal cross section. This is the shape of a specific rib.
- a backlight module includes the above-described frame type backboard.
- a liquid crystal display device includes the above backlight module.
- the inventors have found through research that in the backing plate formed by the splicing of the brackets, when the backing plate is subjected to the twisting stress, the stress is concentrated on the splicing portions of the respective brackets, and thus the distortion of the backing plate also occurs at the splicing.
- the invention adds a solid reinforcing rib at the joint of the two brackets, which greatly improves the bending resistance of the joint, thereby improving the strength of the entire backboard.
- Figure 1 is a schematic view of a frame type backboard of the present invention
- Figure 2 is a schematic view of the ribs of the hollow
- FIG. 3 is a schematic view of a solid reinforcing rib at a splicing portion according to an embodiment of the present invention
- FIG. 4 is a schematic view showing another solid reinforcing rib of a splicing portion according to an embodiment of the present invention.
- Figure 5 is a schematic view of a solid reinforcing rib at a joint of the second embodiment of the present invention.
- a liquid crystal display device includes a liquid crystal panel and a backlight module, and a bottom of the backlight module is provided with a frame type back plate.
- the frame type back panel includes a frame 100 composed of a plurality of brackets 110, and the frame 100 is provided with a plurality of bridges 120.
- the bracket 110 includes an upper bracket 111, a lower bracket 113, a left bracket 114, and a right bracket 112 that are connected end to end, and a large frame 100 constituting the entire frame type backboard, and two large frames 100 are also provided therein.
- the intermediate bracket 115 and the two ends of the intermediate bracket 115 are respectively fixed on the upper and lower brackets 110.
- a plurality of bridges 120 are disposed on each of the brackets 110 and between the two brackets 110. The bridges 120 can be used to fix components of the PCB and other backlight modules.
- each bracket 110 is provided with a reinforcing rib.
- the reinforcing rib is directly formed on the bracket 110, and has a hollow trapezoidal structure.
- the hollow rib has sufficient strength in the field of liquid crystal display to ensure the strength of the bracket 110.
- the inventors have found that the twisting stress of the action and the frame type 100 splicing backboard is mainly concentrated on the splicing of the two brackets 110. Therefore, the stress of the bracket 110 at the splicing is much larger than that of the other portions. Therefore, the present invention employs a solid rib structure at the splicing. The implementation of the solid ribs will be further explained below in conjunction with specific embodiments.
- the bracket 110 located on the surface of the frame 100 is provided with a solid boss 510 at the splicing portion to form the solid reinforcing rib; and the bracket 110 located at the other side of the frame 100 is provided at the splicing portion.
- the solid rib fit groove 520; after the two brackets 110 are spliced, the solid rib is embedded in the groove 520.
- the bosses 510 are embedded in the recesses 520, and the splicing strength of the two brackets 110 is increased without increasing the thickness of the splicing portions.
- the groove 520 is provided with solid groove walls 530 on both sides to form the solid reinforcing ribs, as shown in FIG.
- the groove wall 530 at both ends of the groove 520 has a solid structure, which can further enhance the splicing strength of the two brackets 110.
- the above solid boss 510 can extend through the entire bracket 110, so that the bracket can be greatly enlarged.
- the strength of the 110 itself makes the spliced backboard stronger.
- the display of the ribs can be carried out by using the current trapezoidal structure or other shapes, and the effects of the present invention can be achieved.
- the brackets 110 on both sides of the frame 100 are respectively provided with solid bosses 510 at the splicing portions to form the solid reinforcing ribs, so that the two brackets 110 are spliced at two joints at the splicing place, and the splicing flatness Higher.
- the solid boss 510 can extend through the entire bracket 110, which greatly enhances the strength of the bracket 110 itself and makes the spliced backboard stronger.
- the display of the ribs can be carried out by using the current trapezoidal structure or other shapes, and the effects of the present invention can be achieved.
- Solid ribs or stamping methods that are not suitable for hollow ribs. After stamping, even if solid ribs are formed in the hollow area, the bond strength between the solid ribs and the hollow ribs is not good enough.
- the solid reinforcing rib of the present invention is more suitable for being formed by extrusion molding; if it is a plastic material bracket, it can be produced by injection molding or the like.
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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)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
一种框架式背板、背光模组和液晶显示装置。一种框架式背板,包括框架(100),所述框架(100)包括多个相互拼接的支架(110),所述支架(110)在拼接处设有实心的加强筋(510)。在利用支架(110)拼接形成的背板中,当背板产生扭曲应力的时候,应力会集中在各个支架的拼接处,因此背板的扭曲变形也多出现在拼接处。在两支架(110)的拼接处加设实心的加强筋(510),提升了拼接处的抗折弯能力,进而提升了整个背板的强度。
Description
一种框架式背板、 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, 涉及一种框架式背板、 背光模组 和液晶显示装置。
【背景技术】
液晶显示装置包括液晶面板和背光模组, 背光模组底部具有一个用于密封 模组并固定模内组件的背板。 现有的背板均使用整体式的背板, 一般使用金属 沖压或者塑料注射方式整体成型, 使得产品比较重, 产品的材料成本较高。 对 于大尺寸的背板, 由于需使用较大的沖压设备, 成本更高, 且对应的模具尺寸 很大, 结构复杂, 模具成本也很高。 随着市场竟争的日益激烈, 有效的降低设 计成本变得越来越重要, 于是节省材料成本和筒化组装工艺成为各设计者研究 的重要方向。
现有一种背板, 在整体背板设计上发展处了镂空或是拼接背板的设计, 在 一定程度上降低了成本, 但是拼接或镂空使得背板强度下降, 进而使得原本在 背板上固定的 PCB板变的不易。 【发明内容】
本发明所要解决的技术问题是提供一种高强度的框架式背板、 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:
一种框架式背板, 包括框架, 所述框架包括多个相互拼接的支架, 所述支 架的在拼接处设有实心的加强筋。
优选的, 所述位于框架一面的支架在拼接处设有实心的凸台, 形成所述实 心的加强筋; 位于框架另一面的支架在拼接处设有与所述实心的加强筋配合的 凹槽; 两支架拼接后, 所述实心的加强筋嵌入所述凹槽内。 此为一种具体的拼
接处加强筋形式, 拼接处一面的加强筋为实心的凸台, 拼接处另外一面为凹槽, 这样两个支架拼接的时候, 凸台嵌入凹槽内, 在增加两支架的拼接强度的同时, 又不会增加拼接处的厚度。
优选的, 所述凹槽两边设有实心的槽壁, 形成所述实心的加强筋。 凹槽两 端槽壁采用实心结构, 可以进一步提升两支架的拼接强度。
优选的, 所述位于框架一面的支架整体设有实心的凸台, 这样就相当于实 心的加强筋贯穿整条支架, 可大幅提升支架本身的强度, 使背板更牢固。
优选的, 所述位于框架两面的支架在拼接处各设有实心的凸台, 形成所述 实心的加强筋, 这样两支架在拼接处为两平面拼接, 拼接处的平整度比较高。
优选的, 所述加强筋的剖面为梯形。 此为一种具体的加强筋的形状。
一种背光模组, 包括上述的一种框架式背板。
一种液晶显示装置, 包括上述的一种背光模组。
发明人通过研究发现, 在利用支架拼接形成的背板中, 当背板产生扭曲应 力的时候, 应力会集中在各个支架的拼接处, 因此背板的扭曲变形也多出现在 拼接处。 本发明在两支架的拼接处加设实心的加强筋, 大幅提升了拼接处的抗 折弯能力, 进而提升了整个背板的强度。
【附图说明】
图 1是本发明中框架式背板示意图;
图 2是镂空的加强筋示意图;
图 3是本发明实施例一拼接处实心的加强筋示意图;
图 4是本发明实施例一另外一种拼接处实心的加强筋示意图;
图 5是本发明实施例二拼接处实心的加强筋示意图;
其中: 100、 框架; 110、 支架; 111、 上支架; 112、 右支架; 113、 下支架; 114、 左支架; 115、 中间支架; 120、 架桥; 510、 凸台; 520、 凹槽; 530、 槽 壁。
【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。
如图 1 所示, 一种液晶显示装置, 包括液晶面板和背光模组, 所述背光模 组底部设有框架式背板。 框架式背板包括由多根支架 110组成的框架 100, 框架 100上设有多个架桥 120。如图 1所示,所述支架 110包括首尾相连的上支架 111、 下支架 113、 左支架 114、 右支架 112, 组成整个框架式背板的大框架 100, 大框 架 100里面还设有两个中间支架 115, 中间支架 115的两端分别固定在上、 下两 个支架 110上面。 各个支架 110上以及两个支架 110之间设有多个架桥 120, 架 桥 120可以用于固定 PCB板和其它背光模组的组件。
为了增强支架 110的抗折弯能力, 每个支架 110上都设有加强筋, 如图 2 所示, 加强筋直接在支架 110上沖压形成, 呈空心的梯形结构。 空心的加强筋 在液晶显示领域已经有足够的强度保障支架 110 的强度, 但是在实际应用中, 发明人研究发现, 作用与框架 100式拼接式背板的扭曲应力主要集中到两支架 110的拼接处, 因此支架 110在拼接处的应力远大于其他部分, 因此, 本发明在 拼接处采用了实心的加强筋结构。 下面结合具体实施方式, 进一步阐释所述实 心的加强筋的实现方式。
实施例一
如图 3、4所示,位于框架 100—面的支架 110在拼接处设有实心的凸台 510, 形成所述实心的加强筋; 位于框架 100另一面的支架 110在拼接处设有与所述 实心的加强筋配合的凹槽 520; 两支架 110拼接后, 所述实心的加强筋嵌入所述 凹槽 520内。 这样两个支架 110拼接的时候, 凸台 510嵌入凹槽 520内, 在增 加两支架 110 的拼接强度的同时, 又不会增加拼接处的厚度。 进一步的, 所述 凹槽 520两边设有实心的槽壁 530, 形成所述实心的加强筋, 如图 4中所示。 凹 槽 520两端槽壁 530采用实心结构, 可以进一步提升两支架 110的拼接强度。
当然, 上述实心的凸台 510可以贯穿整条支架 110, 这样可大幅提升支架
110本身的强度, 使拼接式背板更牢固。
加强筋的显示可以采用目前的梯形结构, 也可以采用其他的形状, 都能实 现本发明的实施效果。
实施例二
如图 5所示,位于框架 100两面的支架 110在拼接处各设有实心的凸台 510, 形成所述实心的加强筋, 这样两支架 110在拼接处为两平面拼接, 拼接处的平 整度比较高。
同样的, 上述实心的凸台 510可以贯穿整条支架 110, 这样可大幅提升支架 110本身的强度, 使拼接式背板更牢固。
加强筋的显示可以采用目前的梯形结构, 也可以采用其他的形状, 都能实 现本发明的实施效果。
实心的加强筋或不适合用镂空加强筋采用的沖压方式, 沖压后, 即使在镂 空区域再加工形成的实心加强筋, 实心加强筋与镂空加强筋之间的结合强度也 不够好。 而本发明的实心的加强筋更适合采用挤压成型等方式制作; 如果是塑 料材质的支架, 可以采用注塑成型等方式制作。
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
1、一种框架式背板, 包括: 框架, 所述框架包括多个相互拼接的支架, 所述支架的在拼接处设有实心的加强筋。
2、 如权利要求 1所述的一种框架式背板, 其特征在于, 所述位于框架 一面的支架在拼接处设有实心的凸台, 形成所述实心的加强筋; 位于框架 另一面的支架在拼接处设有与所述实心的加强筋配合的凹槽; 两支架拼接 后, 所述实心的加强筋嵌入所述凹槽内。
3、 如权利要求 2所述的一种框架式背板, 其特征在于, 所述凹槽两边 设有实心的槽壁, 形成所述实心的加强筋。
4、 如权利要求 2所述的一种框架式背板, 其特征在于, 所述位于框架 一面的支架整体设有实心的凸台。
5、 如权利要求 1所述的一种框架式背板, 其特征在于, 所述位于框架 两面的支架在拼接处各设有实心的凸台, 形成所述实心的加强筋。
6、 如权利要求 1所述的一种框架式背板, 其特征在于, 所述加强筋的 剖面为梯形。
7、 一种背光模组, 包括如权利要求 1所述的一种框架式背板, 所述框 架式背板包括框架, 所述框架包括多个相互拼接的支架, 所述支架的在拼 接处设有实心的加强筋。
8、 如权利要求 7所述的一种背光模组, 其特征在于, 所述位于框架一 面的支架在拼接处设有实心的凸台, 形成所述实心的加强筋; 位于框架另 一面的支架在拼接处设有与所述实心的加强筋配合的凹槽; 两支架拼接后, 所述实心的加强筋嵌入所述凹槽内。
9、 如权利要求 8所述的一种背光模组, 其特征在于, 所述凹槽两边设 有实心的槽壁, 形成所述实心的加强筋。
10、 如权利要求 8所述的一种背光模组, 其特征在于, 所述位于框架 一面的支架整体设有实心的凸台。
11、 如权利要求 7所述的一种背光模组, 其特征在于, 所述位于框架 两面的支架在拼接处各设有实心的凸台, 形成所述实心的加强筋。
12、 如权利要求 7所述的一种背光模组, 其特征在于, 所述加强筋的 剖面为梯形。
13、 一种液晶显示装置, 包括如权利要求 7所述的一种背光模组, 所 述背光模组, 包括框架式背板, 所述框架式背板包括框架, 所述框架包括 多个相互拼接的支架, 所述支架的在拼接处设有实心的加强筋。
14、 如权利要求 13所述的一种液晶显示装置, 其特征在于, 所述位于 框架一面的支架在拼接处设有实心的凸台, 形成所述实心的加强筋; 位于 框架另一面的支架在拼接处设有与所述实心的加强筋配合的凹槽; 两支架 拼接后, 所述实心的加强筋嵌入所述凹槽内。
15、 如权利要求 14所述的一种液晶显示装置, 其特征在于, 所述凹槽 两边设有实心的槽壁, 形成所述实心的加强筋。
16、 如权利要求 14所述的一种液晶显示装置, 其特征在于, 所述位于 框架一面的支架整体设有实心的凸台。
17、 如权利要求 13所述的一种液晶显示装置, 其特征在于, 所述位于 框架两面的支架在拼接处各设有实心的凸台, 形成所述实心的加强筋。
18、 如权利要求 13所述的一种液晶显示装置, 其特征在于, 所述加强 筋的剖面为梯形。
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| CN102734763A (zh) * | 2012-07-10 | 2012-10-17 | 深圳市华星光电技术有限公司 | 一种拼接式显示器背板及液晶显示器 |
| CN102830545B (zh) * | 2012-08-31 | 2014-12-10 | 深圳市华星光电技术有限公司 | 液晶显示装置及其背板组件 |
| CN102798095B (zh) * | 2012-09-07 | 2014-07-09 | 深圳市华星光电技术有限公司 | 镂空式背板及使用该背板的背光模组 |
| CN103906400A (zh) * | 2014-04-23 | 2014-07-02 | 雅固拉国际精密工业(苏州)有限公司 | 一种服务器用滑轨的支撑架 |
| CN104698683B (zh) * | 2015-03-19 | 2019-05-10 | 京东方科技集团股份有限公司 | 一种液晶显示模组及显示装置 |
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| CN100400933C (zh) * | 2005-04-21 | 2008-07-09 | 天津港第四港埠公司 | 用于门机臂架的组合式滑轮及其维修安装工艺 |
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| CN101440944B (zh) * | 2008-12-16 | 2011-08-31 | 友达光电股份有限公司 | 背板结构与背光模块 |
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| CN102392996A (zh) | 2012-03-28 |
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