CN101604098A - Reflecting backboard and vertical backlight module - Google Patents

Reflecting backboard and vertical backlight module Download PDF

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Publication number
CN101604098A
CN101604098A CN 200810125433 CN200810125433A CN101604098A CN 101604098 A CN101604098 A CN 101604098A CN 200810125433 CN200810125433 CN 200810125433 CN 200810125433 A CN200810125433 A CN 200810125433A CN 101604098 A CN101604098 A CN 101604098A
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reflective
frame
backlight module
layer
heat dissipation
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CN 200810125433
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Chinese (zh)
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CN101604098B (en
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冯华德
翁林助
黄炳锋
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中强光电股份有限公司
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Abstract

The invention relates to a reflecting backboard which is suitable for a backlight module with a light source group. The reflecting backboard comprises a frame and a reflecting piece, wherein the frame is provided with at least one hollow opening; the reflecting piece is assembled in the frame; the reflecting piece is provided with a reflecting layer and a radiating layer which are made of different materials; the reflecting layer is provided with a reflecting face and a back face opposite to the reflecting face; the reflecting face defines a concave part which is used for containing the light source group; and the radiating layer is arranged on the back face of the reflecting layer.

Description

反光背板及直下型背光模块 Reflective backplane and a direct type backlight module

技术领域 FIELD

本发明涉及一种反光背板,且特别是涉及一种适用于液晶显示器的直下型背光模块的反光背板。 The present invention relates to a reflective backing plate, and more particularly to a reflective backplane of the liquid crystal display suitable for direct-type backlight module.

背景技术 Background technique

近年来,由于液晶显示器以轻、薄、小以及耗电低等特点,在笔记型电脑、数位相机、电视等电子影像产品上得到了广泛的应用,并逐渐取代 In recent years, a liquid crystal display with a light, thin, small and low power consumption characteristics, in notebook computers, digital cameras, video and other electronic products have been widely used, and gradually substituted

了传统阴极射线管(CRT, Cathode my tube)显示器。 The conventional cathode ray tube (CRT, Cathode my tube) display.

液晶显示器主要包括两部份:液晶面板以及背光模块。 The liquid crystal display includes two parts: a liquid crystal panel and a backlight module. 液晶面板主要通过液晶分子的转动及偏光板,来改变光线在不同区域的通过量,在不同区域造成明暗差异,以达到影像显示的目的。 The liquid crystal panel and the polarizing plate primarily by the rotation of the liquid crystal molecules is changed by the amount of light in different areas, resulting in shade difference in different regions, for the purpose of image display. 由于液晶本身并不具备发光特性,因此须依赖背光模块提供光源。 Since the liquid crystal itself does not have the light emission characteristics, and therefore have to rely on a light source of the backlight module. 依照光源位置的不同,背光模块一般可分为直下型与侧光型两种,其中直下型背光模块由于其光源设置于液晶显示面板的正下方,故具有较高的亮度,并多使用于监视器以及液晶电视等大尺寸显示设备上。 According to different positions of the light source, the backlight module can be generally classified into two kinds of direct type and edge-light type, the direct type backlight module wherein a light source due to its positive display is provided below the liquid crystal panel, it has a high luminance, and is often used for monitoring and is a large-sized liquid crystal TV display device.

在现今液晶显示器的使用上,越来越多的应用是将液晶显示器以壁挂方式悬于墙上或户外看板,因此轻量化有其一定的市场趋势,而背光模块又是液晶显示器的关键组件。 In the liquid crystal display used today, more and more applications is a liquid crystal display to a wall or wall-suspended outdoor billboards, so there is a certain weight market trends, and the backlight module is a key component of a liquid crystal display. 直下型的背光模块主要构件有胶框、光学模片、扩散板、光源组固定件、光源组、扩散板及光源支撑架、反射片、背板、电压转换器、电压转换器保护盖等,而在此组成架构中,背板即占了整体背光模块总重量的一半以上。 Direct backlight module main frame member with adhesive, the optical die, a diffusion plate, a light source fixing member group, source group, and the light diffusion plate bracket, a reflective sheet, back sheet, a voltage converter, the voltage converter and the like protective cover, in the composition of this architecture, the backplate i.e. accounted for over half of the total overall weight of the backlight module. 因此,背板能否减轻重量,决定液晶显示器能否符合所述轻量化的趋势。 Thus, the backplate can reduce the weight, determined tendency of the liquid crystal display can meet lightweight.

图1为已知的一种直下型背光模块的背板的示意图。 1 is a schematic backplane known a direct-type backlight module. 参考图1,已知的背板100主要为大片的金属材料,通常为钢材加工而成的单一片材,藉以承载背光模块的其余组件,以及作为背光模块中锁固、定位和散热的主要结构。 Referring to FIG 1, a known metal material mainly large backplate 100, typically a steel material processed from a single sheet, thereby carrying the remaining components of the backlight module, and a backlight unit as main locking, positioning and cooling . 此外,背板100还必须保留大片材料以提供防漏光及散热的功能,但也因此造成了液晶显示器无法有效轻量化的主要原因。 Further, the back plate 100 must also retain a large leak-proof material to provide the function of heat and light, but also results in the liquid crystal display can not be effectively the main reasons of weight reduction. 发明内容 SUMMARY

本发明提出一种反光背板,其适用于背光模块,以降低背光模块的重本发明提出一种直下型背光模块,其具有较小的重量。 The present invention provides a reflective back sheet which is suitable for a backlight module to reduce weight of the backlight module according to the present invention provides a direct-type backlight module, which has a low weight.

本发明的一个实施例提出一种反光背板,其适用于具有光源组的背光模块。 One embodiment of the present invention to provide a reflective backing plate, having a light source adapted to set a backlight module. 反光背板包括框架及反光片。 Reflective sheeting and a backing plate comprises a frame. 框架具有至少一个镂空开口。 A frame having at least one hollow opening. 反光片组装至框架内。 Sheeting assembled to the inner frame. 反光片具有反射层和散热层,其中反射层和散热层分属不同材质。 Sheet having a reflective layer and a reflective heat dissipation layer, wherein the reflective layer and the heat dissipation layer belong to different materials. 反射层具有反射面和相对于所述反射面的背面,其中,反射面界定出凹部,凹部用以容纳所述光源组,而散热层配置于所述反射层的背面。 And a reflective layer having a reflective surface with respect to the back surface of the reflection surface, wherein the reflecting surface defining a recess, the recess portion for receiving the light source groups, and a heat dissipation layer disposed on the back surface of the reflective layer.

本发明的另一实施例提出一种背光模块,其包括框架、反光片和光源组。 Another embodiment of the present invention provides a backlight module, which includes a frame, sheeting and light source groups. 框架具有至少一个镂空开口。 A frame having at least one hollow opening. 反光片组装至框架内。 Sheeting assembled to the inner frame. 反光片具有反射层和散热层,其中反射层和散热层系分属不同材质。 Sheet having a reflective layer and a reflective heat dissipation layer, wherein the reflective layer and the heat dissipation layer system belong to different materials. 反射层具有反射面和相对于所述反射面的背面,其中反射面界定出凹部,而散热层配置于反射层的背面。 A reflective layer having a reflective surface and a back surface with respect to the reflective surface, wherein the recess portion defining a reflective surface, and the heat dissipation layer disposed on the back surface of the reflective layer. 所述光源组容纳于反光片的凹部内。 The bank of light sources housed in the concave portion of the sheeting.

基于上述,在本发明的上述实施例中,通过具有镂空开口的框架及将反射层与散热层互相接合后组装至框架中,使反光背板能够实现轻量化的目的,并通过散热层提供反射层遮光、支撑与散热的功用。 Based on the above, in the above embodiment of the present invention, the hollow frame having an opening and assembled to a rear reflective layer and the heat dissipation layer is bonded to each other in the frame, so that the reflective backplane can achieve the purpose of weight reduction, and to provide the heat dissipation through the reflective layer light-shielding layer, the support and the heat dissipation function.

为了使本发明的上述特征和优点能更明显易懂,下文特举多个实施例, 并配合附图进行了详细说明如下。 To make the above features and advantages of the present invention can be more fully understood by reading the following more embodiments accompanied with figures are described in detail below.

附图说明 BRIEF DESCRIPTION

图1是己知的一种直下型背光模块的背板的示意图。 1 is a schematic back sheet known a direct-type backlight module.

图2为本发明的一个实施例的一种反光背板的分解图。 An exploded view of a reflective backplane of embodiment 2 of the present invention. FIG. 图3为图2的反光背板的组合图。 FIG 3 is a reflective back plate 2 of the combination of FIG. 图4为图2的框架的分解图。 4 is an exploded view of the frame of FIG. 2. 图5为本发明的另一实施例的一种框架的示意图。 Schematic diagram of a frame according to another embodiment of the present invention. FIG. 5. 图6为本发明的又一实施例的一种直下型背光模块的示意图。 Schematic diagram of a direct type backlight module according to yet another embodiment of the present invention. FIG. 6. 【主要元件符号说明】跳 背板 Main reference numerals DESCRIPTION jump back sheet

200: 反光背板 200: Reflective backplane

210: 框架 210: Framework

210a: 镂空开口 210a: hollow opening

212: 边梁 212: edge beam

214: 支梁 214: support beam

220: 反光片 220: sheeting

220a: 凹部 220a: recess

222: 反射层 222: reflective layer

222a: 反射面 222a: the reflection surface

222b: 背面 222b: back

224: 散热层 224: heat dissipation layer

310: 框架. 310: frame.

310a: 镂空开口 310a: hollow opening

316: 散热片 316: heatsink

400: 直下型背光模块 400: direct type backlight module

410: 反光背板 410: Reflective backplane

410a: 凹部 410a: recess

420: 光源组 420: light source group

具体实施方式 Detailed ways

下列各实施例的说明是参考附加的图式,用以例示本发明可用以实施的特定实施例。 The following description of the embodiments with reference to the appended drawings, to exemplify a particular embodiment of the embodiment of the present invention. 本发明所提到的方向用语,例如「上」、「下」、「前」、 「后」、「左」、「右」等,仅是参考附图的方向。 Direction mentioned present invention, such as "upper", "lower", "front", "rear", "left", "right", etc., are only with reference to the accompanying drawings direction. 因此,使用的方向用语是用来说明的,而非用来限制本发明。 Accordingly, the directional terms are used for illustration and are not intended to limit the present invention.

图2为本发明的一个实施例的一种反光背板的分解图,图3为图2的反光背板的组合图。 An exploded view of a reflective backplane embodiment of the present invention. FIG. 2, FIG. 3 is a back plate of FIG 2 reflecting a combination of FIG. 参考图2及图3,在本实施例中,反光背板200适用于液晶显示器的背光模块。 Referring to FIG. 2 and FIG. 3, for example, the backplate 200 is adapted to the reflective liquid crystal display backlight unit in the present embodiment. 反光背板200包括框架210和反光片220。 Reflective backplate 200 includes a frame 210 and a reflective sheet 220. 框架210具有镂空开口210a。 Hollow frame 210 having an opening 210a. 反光片220组装至框架210内。 Sheeting 220 is assembled to the frame 210.

反光片220包括反射层222和散热层224。 Sheeting 220 includes a reflective layer 222 and the heat dissipation layer 224. 反射层222具有反射面222a和相对于反射面222a的背面222b,其中反射面222a界定出凹部220a,用以容纳光源组(如图6的标号420)。 A reflective layer having a reflective surface 222 with respect to the reflection surfaces 222a and 222a of the back surface 222b, wherein the reflection surface 222a defining a recess portion 220a, for receiving a light source group (as shown in reference numeral 4206). 散热层224位于反射层222的背面222b。 Heat dissipation layer located on the reflective layer 224 of the back surface 222b 222. 此外,散热层224可依照需求而全部或局部地分布于反射层222的背面222b 。 Further, the heat dissipation layer 224 may be in accordance with all requirements or localized in the back surface 222b 222 of the reflective layer.

在本实施例中,散热层224可通过粘贴、热押、涂布、电镀、蒸镀等方式形成在反射层222上。 In the present embodiment, the heat dissipation layer 224 may be formed on the reflective layer 222 by gluing, hot charge, coating, electroplating, vapor deposition or the like. 相反地,反射层222也可以通过粘贴、热押、 涂布、电镀、蒸镀等方式形成在散热层224上。 Conversely, the reflective layer 222 may be formed on the heat dissipation layer 224 by gluing, hot charge, coating, electroplating, vapor deposition or the like. 此外,反射层222的材质可为反射材质,而散热层224的材质可为金属或其他散热材质。 The material of the reflective layer 222 may be a reflective material, and the material of the heat dissipation layer 224 may be a metal material or another heat.

图4为图2的框架的分解图。 4 is an exploded view of the frame of FIG. 2. 参考图4,框架210以多个边梁212拼接而成,拼接后的框架210具有镂空开口210a,藉以使反光背板200的重量减轻,降低其在背光模块中的重量比例,以符合轻量化的目的。 Referring to Figure 4, frame 210 side beam 212 to a plurality of splicing, the splicing frame 210 having a hollow opening 210a, whereby the weight of the reflector backing plate 200 is reduced, reducing the weight proportion of the backlight module, to meet weight the goal of. 在本实施例中,这些边梁212可以铝制薄板折弯而成,其中相邻的这些边梁212可以锁固件互相锁附,或是以激光、电极互相焊接等方式进行拼接。 The side beam 212 in the present embodiment, the side beam 212 may be formed by bending aluminum sheets, which may be adjacent to each other locking lock attachment, or laser, and other welding electrode another embodiment splicing. 在另一未图示的实施例中,这些边梁212的材质亦可采用塑胶。 In another embodiment not illustrated, the side beam 212 may also be a material with plastic.

再参考图2及图4,框架210还包括至少一支梁214,其跨越镂空开口210a,并与这些边梁212互相焊接或互相锁附,用以作为增加框架210的结构强度。 Referring again to FIG. 2 and FIG. 4, frame 210 further includes at least one beam 214, which spans hollow opening 210a, and these side beams 212 welded to each other or attached to each lock for increased structural strength as the frame 210. 与已知技术所使用的整片钢板相比,依据本实施例,较容易对支梁214进行加强结构的处理,例如在支梁214设有较深的肋(剖面结构为凸型时)。 Compared to the whole steel sheet used in the known art, according to this embodiment, support beams 214 for easier processing of the reinforcing structure, e.g. with deeper ribs 214 support beam (cross-sectional configuration is convex). 在本实施例中,支梁214亦可以铝制薄板折弯而成,并且支梁214 的剖面结构可为凸型或工型等形状,用以增加框架210的结构强度。 In the present embodiment, the support beam 214 can also be formed by bending a thin plate made of aluminum, and the support beam cross-sectional configuration 214 may be used to increase the structural strength of the frame 210 is a convex - shape and other shapes. 在另一未图示的实施例中,支梁214的材质亦可采用塑胶。 In another embodiment not illustrated, the beam 214 may also support a material with plastic.

在本实施例中,框架210可通过铝制薄板作成支梁214和边梁212,以代替已知技术所使用的整片钢板,除了可维持原本结构强度,使框架210 上能够负载光源组等背光模块的相关部件,从而作为背光模块中锁固以及定位的主要结构以外,还可以减低已知的背板由于形状或材质所造成重量过大的影响,从而轻量化反光背板200。 In the present embodiment, the frame 210 may be made of aluminum sheet by a support beam 214 and side beam 212, instead of the entire steel plates used in the known art, in addition to maintaining the strength of the original structure, so that the light source groups capable of supporting frame 210 and the like Related member backlight module, thus used as the primary structure of the backlight module and a locking positioning, also known backplate can reduce the influence due to the excessive weight of shapes and materials caused to 200 weight reflective backplane.

在本实施例中,散热层224的厚度可小于上述这些弯折后以构成边梁212和支梁214的薄板厚度,除了符合轻量化的目的之外,主要是为了降低反射层222的热应变。 In the present embodiment, the thickness of the heat dissipation layer 224 may be smaller than the thickness of the thin plate is bent to the side beam 212 and the support beam 214, in addition to compliance with the purpose of lightweight, a reflective layer is mainly to reduce the thermal strain 222 . 因此,除了可以借助于散热层224来提供反射层222 遮光功能以外,还可以借助于散热层224来协助反射层222的散热及降低反射层222的热应变,让反射层222在受热时仍然可以维持其平整度,从而使反射层222能够均匀地反射光线。 Thus, in addition to the heat dissipation layer can be provided by means of the reflective layer 222 outside the shielding function 224, by means of the heat dissipation layer 224 may be heat reflective layer 222 to help reduce the thermal strain and the reflective layer 222, so that the reflective layer 222 may still be heated at maintaining its flatness, such that the reflective layer 222 can be uniformly reflect light.

图5为本发明的另一实施例的一种框架的示意图。 Schematic diagram of a frame according to another embodiment of the present invention. FIG. 5. 参考图5,在本实施例中,框架310的材质可为塑胶,以取代已知技术所用的钢材,而达到轻量化的功效。 Referring to FIG. 5, in the present embodiment, the frame 310 may be made of plastic, instead of steel used in the known art, to achieve the effect of weight reduction. 此外,框架310还可以一体成型,例如塑胶射出成型。 Further, the frame 310 may also be integrally formed, for example, plastic injection molding.

在本实施例中,框架310还可以包括至少一个散热片316,其连接至框架310,用以封闭框架310中镂空开口310a的一部份。 In the present embodiment, the frame 310 may further comprise at least one fin 316, which is connected to the frame 310 to frame 310 in a closed hollow portion 310a of the opening. 散热片316可有效吸收背光模块运作时产生的热源。 Fins 316 can effectively absorb the heat generated during operation of the backlight module. 在本实施例中,由于用以固定及提供光源组电压的光源组固定件是设于框架310的两侧端,因此散热片316优选地是设于靠近框架310的两侧端。 In the present embodiment, since the light source is provided for fixing the set voltage and the light source fixing member group is provided on both side ends of the frame 310, so the heatsink 316 is preferably provided near both ends of the frame 310.

图6为本发明的又一实施例的一种直下型背光模块的示意图。 Schematic diagram of a direct type backlight module according to yet another embodiment of the present invention. FIG. 6. 参考图6, 在本实施例中,直下型背光模块400包括反光背板410和光源组420。 Referring to FIG 6, in the embodiment, the direct type backlight module 400 includes a back plate 410 and the reflective light source groups 420 in the present embodiment. 反光背板410即图3的反光背板200,而光源组420设于反光背板410的凹部410a内,以作为提供直下型背光模块400的光线来源。 I.e. reflective back plate 410 in FIG. 3 the reflective backing plate 200, and the light source group 420 disposed in the reflective concave portion 410 in the back plate 410a, as a light source 400 to provide a direct-type backlight module. 上述凹部410a即为图3的凹部220a。 The concave portion 410a that is a concave portion 220a 3 of FIG. 在本实施例中,光源组420为灯管组,例如为冷阴极管(CCFL, Cold Cathode Fluorescent Lamp)。 In the present embodiment, the light source lamp group 420 is set, for example, cold cathode tubes (CCFL, Cold Cathode Fluorescent Lamp).

综上所述,在本发明的上述实施例中,通过具有镂空开口的框架及将反射层与散热层互相接合后组装至框架中,使反光背板得以达到轻量化的目的,并通过散热层提供反射层遮光、支撑与散热的功用。 In summary, in the above-described embodiments of the present invention, the hollow frame having an opening and the assembled back reflective layer and the heat dissipation layer is bonded to each other in the frame, so that the back plate to achieve the purpose of reflecting light weight, and the heat dissipation layer providing a light-shielding function of a reflective layer, and the heat dissipation of the support.

除此之外,框架除了可以多个由铝制薄板折弯成形的梁(边梁和支梁) 相互拼接来加以制造之外,还可以由塑胶材质一体成型。 Besides, in addition to a plurality of frame beams (side beams and support beams) formed from aluminum sheet folded to each other than to be manufactured splicing, can also be integrally molded from plastic material. 此外,框架也可以多个由塑胶形成的梁(边梁和支梁)相互拼接而加以制得。 Further, the frame may be formed of a plurality of plastic beams (side beams and support beams) mutually splicing be prepared.

虽然以及借助于以上各个实施例公开了本发明,但是这些实施例兵分用于限定本发明,本领域技术人员在不脱离本发明的精神和范围的情况下可以进行某些修改和变动。 Although each of the above embodiments and with the aid of the disclosed embodiments of the present invention, but these examples Bingfen limit the invention, those skilled in the art without departing from the spirit and scope of the present invention that certain changes and modifications. 另外,本发明的任何一个实施例或权利要求都不需实现本发明所公开的全部目的或优点或特点。 Further, any of the embodiments of the present invention or the claims are not required to achieve all of the objects or advantages or features of the present invention is disclosed. 此外,摘要和标题仅仅是为了帮助进行文献搜索,而并非用于限定本发明的范围。 In addition, the title and summary of the literature simply to help the search, and are not intended to limit the scope of the invention.

9 9

Claims (20)

1.一种反光背板,适用于具有光源组的背光模块,所述反光背板包括: 框架,具有至少一个镂空开口;以及反光片,组装至所述框架内,所述反光片具有反射层和散热层,其中,所述反射层和所述散热层分属不同材质,所述反射层具有反射面和相对于所述反射面的背面,所述反射面界定出凹部,所述凹部用以容纳所述光源组,而所述散热层配置于所述反射层的所述背面。 A reflective backing plate for a backlight module having a light source group, the reflective backplane comprising: a frame having at least one hollow opening; and sheeting, assembled to the inner frame, the sheeting having the reflective layer and a heat sink layer, wherein the reflective layer and the heat dissipation layer belong to different materials, the reflective layer having a reflective surface and a back surface with respect to the reflective surface, said reflective surface defining a concave portion, the concave portion for receiving the light source group, and the back surface of the heat dissipation layer disposed on the reflective layer.
2. 如权利要求1所述的反光背板,其中,所述框架是由薄板所折弯而成的,而所述散热层的厚度小于所述薄板的厚度。 2. The reflective backing plate according to claim 1, wherein said frame is formed by bending the sheet, and the heat dissipation layer has a thickness less than the thickness of the sheet.
3. 如权利要求1所述的反光背板,其中,所述框架是由多个边梁所拼接而成。 The reflective backing plate as claimed in claim 1, wherein the frame is stitched together by a plurality of side beams.
4. 如权利要求3所述的反光背板,其中,所述多个边梁之一是由薄板所折弯而成的,而所述散热层的厚度小于所述薄板的厚度。 4. The reflective backing plate according to claim 3, wherein one of said plurality of side beams are formed by bending the thin plate, and the heat dissipation layer has a thickness less than the thickness of the sheet.
5. 如权利要求3所述的反光背板,其中,所述框架还包括至少一个支梁,其跨越所述镂空开口,并且两端分别连接所述多个边梁中的两个。 5. The reflective backing plate according to claim 3, wherein said frame further comprises at least one support beam which spans the hollow opening, and both ends are connected to two sides of the plurality of beams.
6. 如权利要求5所述的反光背板,其中,所述支梁是由一薄板所折弯而成,而所述散热层的厚度小于所述薄板的厚度。 6. A reflector as claimed in claim 5, wherein the backing plate, wherein said support beam is formed by bending a thin plates, and the thickness of the heat dissipation layer is smaller than the thickness of the sheet.
7. 如权利要求1所述的反光背板,其中,所述框架的材质包括铝。 7. The reflective backing plate according to claim 1, wherein said frame comprises a material of aluminum.
8. 如权利要求1所述的反光背板,其中,所述框架的材质包括塑胶。 8. The reflective backing plate according to claim 1, wherein said frame comprises a plastic material.
9. 如权利要求1所述的反光背板,其中,所述框架还包括散热片,其封闭所述镂空开口的一部分。 9. The reflective backing plate according to claim 1, wherein said frame further comprises a heat sink, which closes an opening of the hollow portion.
10. —种直下型背光模块,包括: 框架,具有至少一个镂空开口;反光片,组装至所述框架内,所述反光片具有反射层和散热层,其中, 所述反射层和所述散热层分属不同材质,所述反射层具有反射面和相对于所述反射面的背面,所述反射面界定出凹部,而所述散热层配置于所述反射层的所述背面;以及光源组,容纳于所述反光片的所述凹部内。 10. - Species direct type backlight module, comprising: a frame having at least one hollow opening; sheeting, is assembled to the inner frame, the sheet having a reflective layer and a reflective heat dissipation layer, wherein the reflective layer and the heat dissipation belong to different layer materials, the reflective layer having a reflective surface and a back surface with respect to the reflective surface, said reflective surface defining a recess, and said heat dissipation layer disposed on the back surface of the reflection layer; and a light source group , housed in the recess portion of the sheeting.
11. 如权利要求10所述的直下型背光模块,其中,所述框架是一体成型的。 11. The direct-type backlight module as claimed in claim 10, wherein said frame is integrally formed.
12. 如权利要求10所述的直下型背光模块,其中,所述框架是由薄板所折弯而成,而所述散热层的厚度小于所述薄板的厚度。 12. The direct-type backlight module as claimed in claim 10, wherein said frame is formed by bending a thin plate, and the thickness of the heat dissipation layer is smaller than the thickness of the sheet.
13. 如权利要求10所述的直下型背光模块,其中,所述框架是由多个边梁所拼接而成。 13. The direct-type backlight module as claimed in claim 10, wherein said frame is composed of a plurality of side beams are stitched together.
14. 如权利要求13所述的直下型背光模块,其中,所述多个边梁之一是由薄板所折弯而成,而所述散热层的厚度小于所述薄板的厚度。 14. The direct-type backlight module as claimed in claim 13, wherein one of said plurality of side beams are formed by bending a thin plate, and the thickness of the heat dissipation layer is smaller than the thickness of the sheet.
15. 如权利要求13所述的直下型背光模块,其中,所述框架还包括至少一个支梁,其跨越所述镂空开口,并且两端分别连接所述多个边梁中的两个。 15. The direct-type backlight module according to claim 13, wherein said frame further comprises at least one support beam which spans the hollow opening, and both ends are connected to two sides of the plurality of beams.
16. 如权利要求15所述的直下型背光模块,其中,所述支梁是由薄板所折弯而成,而所述散热层的厚度小于所述薄板的厚度。 16. The direct-type backlight module of claim 15, wherein said support beam is formed by bending a thin plate, and the heat dissipation layer has a thickness less than the thickness of the sheet.
17. 如权利要求10所述的直下型背光模块,其中,所述框架的材质包括铝。 17. The direct-type backlight module of claim 10, wherein said frame comprises a material of aluminum.
18. 如权利要求10所述的直下型背光模块,其中,所述框架的材质包括塑胶。 18. The direct-type backlight module according to claim 10, wherein said frame comprises a plastic material.
19. 如权利要求10所述的直下型背光模块,其中,所述框架还包括散热片,其封闭所述镂空开口的一部分。 19. The direct-type backlight module of claim 10, wherein said frame further comprises a heat sink, which closes an opening of the hollow portion.
20. 如权利要求10所述的直下型背光模块,其中,所述光源组为灯管组。 20. The direct-type backlight module according to claim 10, wherein said light source is a set of tube groups.
CN 200810125433 2008-06-13 2008-06-13 Reflecting backboard and vertical backlight module CN101604098B (en)

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