WO2012139296A1 - 背光模块及其导光板固定构造 - Google Patents

背光模块及其导光板固定构造 Download PDF

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Publication number
WO2012139296A1
WO2012139296A1 PCT/CN2011/072817 CN2011072817W WO2012139296A1 WO 2012139296 A1 WO2012139296 A1 WO 2012139296A1 CN 2011072817 W CN2011072817 W CN 2011072817W WO 2012139296 A1 WO2012139296 A1 WO 2012139296A1
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WO
WIPO (PCT)
Prior art keywords
guide plate
light guide
heat dissipation
dissipation base
backlight module
Prior art date
Application number
PCT/CN2011/072817
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English (en)
French (fr)
Inventor
王利锋
余亚军
Original Assignee
深圳市华星光电技术有限公司
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Filing date
Publication date
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 US13/128,172 priority Critical patent/US8608346B2/en
Publication of WO2012139296A1 publication Critical patent/WO2012139296A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0085—Means for removing heat created by the light source from the package
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • 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
    • G02F1/133322—Mechanical guidance or alignment of LCD panel support components
    • 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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side

Definitions

  • the present invention relates to a backlight module and a light guide plate fixing structure thereof, and more particularly to a backlight module and a light guide plate fixing structure thereof for positioning a light guide plate by using a plurality of clamping members
  • FIG. 1 is an exploded perspective view showing the structure of a conventional backlight module.
  • the backlight module 100 is composed of a positioning frame 102 , a light guide plate 104 and a set of stacked optical molds 106 .
  • the optical die 106 is formed, for example, by a diffusion sheet 108, an X-axis mirror addition 110a, and a Y-axis addition beam 110b.
  • a plurality of notches 112 are formed on the positioning frame 102.
  • the light guide plate 104 is formed with a light guide plate flange 104a corresponding to the position of the notch 112, and each optical die 106 is formed with a film flange 114 corresponding to the position of the notch 112 to guide the guide.
  • the light plate 104 and the optical film 106 are placed in the plurality of notches 112 of the positioning frame 102, and the guiding effect is achieved by the alignment effect of the notch 112 and the light guide plate flange 104a and the diaphragm flange 114.
  • the light plate 104 and the optical film 106 are horizontally confined within the positioning frame 102.
  • the light guide plate 104 or the optical die 106 of the backlight module described above must have a lug or groove structure, and the lug or groove structure is the light guide plate 104 or the optical die. 106 can be obtained by cutting after forming, so the cutting operation makes the cost relatively high.
  • a main object of the present invention is to provide a light guide plate fixing structure of a backlight module, wherein a plurality of clamping members are respectively disposed on a side surface of the light guiding plate, and the plurality of clamping members are used for positioning the Light guide plate.
  • a light guide plate fixing structure of a backlight module includes:
  • a heat dissipating base is disposed in a flat shape corresponding to the lower side of the light guide plate, and at least one side of the heat dissipating base is provided with an upwardly extending upright wall, the upright wall is provided with a light source group, and a light emitting direction of the light source group a light incident surface facing the light guide plate;
  • each of the clamping members comprising a bottom portion and a baffle vertically disposed on the bottom portion
  • at least one riser the riser abuts against the upright wall of the heat dissipation base, and the baffle passes through a corresponding penetration portion of the heat dissipation base, and the through portion has a closed groove shape.
  • the riser and the baffle are clamped on the heat dissipation base, and the oppositely disposed clamping members position the light guide plate.
  • the present invention further provides a light guide plate fixing structure of a backlight module, wherein the light guide plate fixing structure comprises:
  • a heat dissipation base is disposed in a flat shape correspondingly below the light guide plate, and at least one side of the heat dissipation base is provided with an upwardly extending upright wall;
  • each of the clamping members comprising a bottom portion and a baffle vertically disposed on the bottom portion And at least one riser, the riser abuts against the upright wall of the heat dissipation base, and the baffle passes through a corresponding penetration portion of the heat dissipation base, and the riser and the baffle are clamped to Positioning the light guide plate on the heat dissipation base and the oppositely disposed clamping members.
  • the present invention further provides a backlight module, including:
  • a heat dissipation base is disposed in a flat shape correspondingly below the light guide plate, and at least one side of the heat dissipation base is provided with an upwardly extending upright wall;
  • each of the clamping members comprising a bottom portion and a baffle vertically disposed on the bottom portion And at least one riser, the riser abuts against the upright wall of the heat dissipation base, and the baffle passes through a corresponding penetration portion of the heat dissipation base, and the riser and the baffle are clamped to Positioning the light guide plate on the heat dissipation base and the oppositely disposed clamping members;
  • a backing plate disposed under the heat dissipation base and covering the heat dissipation bottom and the clamping member;
  • the upright wall is provided with a light source group, and the light source emitting direction of the light source group faces the light incident surface of the light guide plate.
  • the upper surface of the heat dissipation base further includes a plurality of first protrusions and second protrusions, the first protrusions being located under the light guide plate and supporting the light guide plate
  • the second protrusion is located between the upright wall of the heat dissipation base and the through portion to abut the baffle.
  • the second protruding portion is provided with a light source group, and the light emitting direction of the light source group faces the light incident surface of the light guide plate.
  • the baffle of the clamping member is provided with an elastic protrusion toward the second protruding portion of the heat dissipating base, and the elastic protrusion abuts against the second protruding portion of the heat dissipating base To increase the stability of the clamping member.
  • the baffle of the clamping member is provided with an elastic protrusion toward the light guiding plate, and the elastic protrusion abuts against the light guiding plate to increase the stability of the light guiding plate.
  • the bottom of the clamping member is provided with an opening
  • the cooling base is correspondingly provided with a screw hole to provide a screw to fix the clamping member to the heat dissipation base.
  • the through portion of the heat dissipation base has a closed slot shape.
  • the through portion of the heat dissipation base has an open notch shape.
  • the light guide plate fixing structure of the backlight module of the present invention does not need to form a lug or groove structure for the light guide plate, so that the cutting operation is saved and the cost is relatively reduced. Moreover, compared with another conventional method for fixing the light guide plate by the entire plastic frame, the present invention can position the light guide plate by using a multi-point clamping member, thereby saving manufacturing cost.
  • the light guide plate fixing structure of the backlight module of the present invention does not need to form a lug or groove structure for the light guide plate, so that the cutting operation is saved and the cost is relatively reduced. Moreover, compared with another existing way of fixing the light guide plate by the entire plastic frame, the present invention uses a multi-point clamping member to position the light guide plate, thereby saving manufacturing cost. .
  • FIG. 1 is an exploded perspective view showing the structure of an existing backlight module.
  • Figure 2 is a plan view of a first embodiment of a backlight module of the present invention.
  • Figure 3 A partial view of Figure 2.
  • FIG. 4A is a partial plan view of a heat dissipation base of a first embodiment of a backlight module of the present invention.
  • Fig. 4B is a perspective view of a holder of the first embodiment of the backlight module of the present invention.
  • 4C is a side cross-sectional view showing a light guide plate fixing structure of the first embodiment of the backlight module of the present invention.
  • Fig. 5A is a perspective view of a holding member of a second embodiment of the backlight module of the present invention.
  • Fig. 5B is a side cross-sectional view showing a light guide plate fixing structure of a second embodiment of the backlight module of the present invention.
  • Figure 6 is a side cross-sectional view showing a light guide plate fixing structure of a third embodiment of the backlight module of the present invention.
  • Fig. 7A is a perspective view of a holder of a fourth embodiment of the backlight module of the present invention.
  • Fig. 7B is a side cross-sectional view showing a light guide plate fixing structure of a fourth embodiment of the backlight module of the present invention.
  • Figure 8 is a partial plan view of a heat sink base of a fifth embodiment of the backlight module of the present invention.
  • Figure 9 is a partial plan view of a heat sink base of a sixth embodiment of the backlight module of the present invention.
  • FIG. 2 is a plan view of a first embodiment of a backlight module of the present invention
  • FIG. 3 is a partial view of FIG.
  • a backlight module includes a light guide plate 10, a heat dissipation base 20, and a plurality of clamping members 30.
  • the heat dissipation base 20 is disposed in a flat shape correspondingly below the light guide plate 10, and the heat dissipation base 20 is respectively provided with at least one clamping member 30 opposite to the four sides of the light guide plate 10, as shown in FIG.
  • the clamping members 30 are respectively adjacent to both ends of the light guide plate 10.
  • the light guide plate 10 is positioned by a plurality of holding members 30 on four sides abutting against the side of the light guide plate 10.
  • the light source group 40 may be further disposed on the left and right sides, and the detailed arrangement is described below.
  • the present invention does not limit the number of the use of the clamping member 30, and the position of the specific side of the light guide plate 10, but the clamping member 30 can be disposed at least on a corresponding side of the light guide plate 10.
  • the light guide plate 10 is positioned.
  • the arrangement of the holder 30 is basically a requirement that the light source of the light source group 40 is not prevented from entering the light guide plate 10.
  • FIG. 4A is a partial plan view of the heat dissipation base of the first embodiment of the backlight module of the present invention
  • FIG. 4B is a clamping part of the first embodiment of the backlight module of the present invention
  • FIG. 4C is a side cross-sectional view showing the light guide plate fixing structure of the first embodiment of the backlight module of the present invention.
  • the heat dissipation base 20 is provided with a plurality of penetrating portions 21 and at least one side facing upwardly extending upstanding walls 22, each of which has a closed groove shape.
  • Each of the clamping members 30 includes a bottom portion 31 and a baffle 32 vertically disposed on the bottom portion 31 and at least one vertical plate 33.
  • FIG. 4B there are two vertical plates 33 in FIG. 4B, and the baffle 32 and the vertical plate 33 are separated by a section. distance.
  • FIG. 4C the vertical plate 33 of the clamping member 30 abuts against the upright wall 22 of the heat dissipation base 20, and the baffle 32 passes through a through portion 21 of the heat dissipation base 20, and the riser 33 and the baffle 32 are clamped to the heat dissipation.
  • the light guide plate 10 is positioned on the base 20 and disposed on the opposite sides of the light guide plate 10.
  • the clamping member 30 is a metal member, and the clamping member 30 shown in FIG. 4B may have a plurality of protrusions (not labeled) for facilitating the bending forming of the baffle 32 and the vertical plate 33.
  • the clamping member 30 shown in FIG. 4B may have a plurality of protrusions (not labeled) for facilitating the bending forming of the baffle 32 and the vertical plate 33.
  • a light source group 40 is disposed on the inner side of the upright wall 22, and the light emitting direction of the light source group 40 faces the light incident surface of the light guide plate 10.
  • FIG. 5A is a perspective view of a clamping member of a second embodiment of the backlight module of the present invention
  • FIG. 5B is a side of the light guiding plate fixing structure of the second embodiment of the backlight module of the present invention. Cutaway view.
  • the light guide plate fixing structure in the second embodiment of the backlight module of the present invention is similar to the light guide plate fixing structure of the first embodiment in the backlight module of the present invention, and therefore the same component name is used, but the difference between the two is:
  • the upper surface of the heat dissipation base 20 further includes a plurality of first protruding portions 23 and second protruding portions 24.
  • the first protruding portion 23 is located below the light guide plate 10 and supports the light guide plate 10, and the second protruding portion 24 It is located between the upright wall 22 of the heat dissipation base 20 and the penetration portion 21 to abut against the baffle 32.
  • the second protruding portion 24 is provided with the light source group 40, that is, the light source group 40 can abut against the second protruding portion 24 in addition to the inner side of the upright wall 22, the light source group
  • the light emission direction of 40 faces the light incident surface of the light guide plate 10.
  • the baffle 32 of the clamping member 30 is provided with an elastic protrusion 34a facing the second protrusion 24 of the heat dissipation base 20, and the elastic protrusion 34a abuts against the second protrusion of the heat dissipation base 20. 24 to increase the stability of the clamp member 30.
  • the backlight module further includes a back plate 50 disposed under the heat dissipation base 20 and covering the heat dissipation bottom 20 and the clamping member 30.
  • FIG. 6 is a side cross-sectional view showing the light guide plate fixing structure of the third embodiment of the backlight module of the present invention.
  • the light guide plate fixing structure of the third embodiment of the backlight module of the present invention is similar to the light guide plate fixing structure of the second embodiment of the backlight module of the present invention, and therefore the same component name is used, but the difference between the two is: the clamping member
  • the baffle 32 of the 30 is provided with a resilient protrusion 34b toward the light guide plate 10, and the elastic protrusion 34b abuts against the light guide plate 10 to increase the stability of the light guide plate 10.
  • FIG. 7A is a perspective view of a clamping member of a fourth embodiment of the backlight module of the present invention
  • FIG. 7B is a side of the light guiding plate fixing structure of the fourth embodiment of the backlight module of the present invention. Cutaway view.
  • the light guide plate fixing structure of the fourth embodiment of the backlight module of the present invention is similar to the light guide plate fixing structure of the first embodiment of the backlight module of the present invention and the second embodiment, so the same component name is used, but the difference between the two
  • the bottom of the clamping member 30 is provided with an opening 35.
  • the cooling base 20 is correspondingly provided with a screw hole (not shown) to provide a screw 36 for fixing the clamping member 30 to the heat dissipation base 20.
  • the backlight module further includes a plastic frame 60, and the plastic frame 60 fixes the light guide plate 10 from the top to the bottom.
  • FIG. 8 is a partial plan view of the heat dissipation base of the fifth embodiment of the backlight module of the present invention.
  • the heat dissipation base of the fifth embodiment of the backlight module of the present invention is similar to the heat dissipation base of the first embodiment of the backlight module of the present invention, and therefore the same component name is used, but the difference between the two is as follows:
  • the through portion 21 of the base 20 is also in a closed slot shape, the slotted shape may not completely correspond to the cross-sectional shape of the baffle 32 of the clamping member 30, wherein only the right edge of the through portion 21 in the figure provides the clamping member.
  • the baffle 32 of 30 is used for clamping.
  • FIG. 9 is a partial plan view of the heat dissipation base of the sixth embodiment of the backlight module of the present invention.
  • the heat dissipation base of the sixth embodiment of the backlight module of the present invention is similar to the heat dissipation base of the first embodiment of the backlight module of the present invention, and therefore the same component name is used, but the difference between the two is as follows:
  • the through portion 21 of the base 20 has an open notch shape, and only the right edge of the through portion 21 in the figure provides the baffle 32 of the holding member 30 for clamping use.
  • the backlight module of the present invention comprises a light guide plate, a heat dissipation base and a plurality of clamping members compared to the light guide plate fixing structure of the existing backlight module.
  • the heat dissipation base is disposed in a flat shape corresponding to the lower side of the light guide plate.
  • the heat dissipation base is provided with a plurality of clamping members on the side of the light guide plate, each clamping member comprises a bottom portion and a baffle and at least one vertical plate vertically disposed on the bottom portion, and the vertical plate and the baffle plate are clamped on the heat dissipation base a plurality of clamping members of the light guide plate. Therefore, the present invention does not require the formation of a lug or groove structure for the light guide plate, so that the cutting operation is saved and the cost is relatively reduced.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

提供一种背光模块及其导光板固定构造。导光板固定构造包含一导光板（10）、一散热底座（20）及多个夹持件（30）。所述散热底座呈平板状对应设于所述导光板的下方，所述散热底座于导光板的两对应侧面设有多个夹持件，每一夹持件包含一底部（31）以及垂直设于所述底部上的一挡板（32）及至少一竖板（33），竖板及挡板夹固定于所述散热底座上，并且相对设置的多个夹持件定位导光板。

Description

背光模块及其导光板固定构造 技术领域
本发明涉及一种背光模块及其导光板固定构造，特别是涉及一种通过多个夹持件以定位导光板的背光模块及其导光板固定构
 背景技术
图1为一种现有背光模块的构造立体分解图。如图1所示，背光模块100是由一定位框102、一导光板104及一组堆叠的光学模片106所组成。所述光学模片106例如为一扩散片108、一X轴菱镜增光片110a及一Y轴菱镜增光片110b所构成。所述定位框102上形成多个缺口112，所述导光板104对应缺口112位置形成导光板凸缘104a，以及各个光学模片106对应缺口112位置形成膜片凸缘114，以将所述导光板104及所述各个光学模片106置入定位框102的多个缺口112内，通过所述缺口112与导光板凸缘104a及所述膜片凸缘114的对位效果，使所述导光板104及所述光学膜片106水平限位于所述定位框102之内。
然而，上述的背光模块的所述导光板104或所述光学模片106外形必需要有凸耳或凹槽结构，而这些凸耳或凹槽结构是所述导光板104或所述光学模片106成型后再通过裁切才能得到，因此裁切作业使成本相对较高。
故，有必要提供一种背光模块及其导光板固定构造，以解决现有技术所存在的问题。
 技术问题
本发明的主要目的是提供一种背光模块的导光板固定构造，通过所述散热底座于所述导光板的侧面分别设有多个夹持件，所述多个夹持件用以定位所述导光板。
 技术解决方案
为达上述目的，一种背光模块的导光板固定构造，所述导光板固定构造包含：
一导光板；
一散热底座，呈平板状对应设于所述导光板的下方，所述散热底座的至少一侧面设有一向上延伸的直立壁，所述直立壁设有一光源组，所述光源组的光线发射方向朝向所述导光板的入光面；及
多个夹持件，所述散热底座于所述导光板的至少两对应的侧面分别设有夹持件，每一所述夹持件包含一底部以及垂直设于所述底部上的一挡板及至少一竖板，所述竖板抵靠所述散热底座的直立壁，并且所述挡板穿过所述散热底座对应设置的一贯穿部，所述贯穿部呈封闭的开槽状，所述竖板及所述挡板夹固于所述散热底座上，并且相对设置的所述夹持件定位所述导光板。
为达上述目的，本发明另提供一种背光模块的导光板固定构造，所述导光板固定构造包含：
一导光板；
一散热底座，呈平板状对应设于所述导光板的下方，所述散热底座的至少一侧面设有一向上延伸的直立壁；及
多个夹持件，所述散热底座于所述导光板的至少两对应的侧面分别设有夹持件，每一所述夹持件包含一底部以及垂直设于所述底部上的一挡板及至少一竖板，所述竖板抵靠所述散热底座的直立壁，并且所述挡板穿过所述散热底座对应设置的一贯穿部，所述竖板及所述挡板夹固于所述散热底座上，并且相对设置的所述夹持件定位所述导光板。
为达上述目的，本发明再提供一种背光模块，其包含：
一导光板；
一散热底座，呈平板状对应设于所述导光板的下方，所述散热底座的至少一侧面设有一向上延伸的直立壁；
多个夹持件，所述散热底座于所述导光板的至少两对应的侧面分别设有夹持件，每一所述夹持件包含一底部以及垂直设于所述底部上的一挡板及至少一竖板，所述竖板抵靠所述散热底座的直立壁，并且所述挡板穿过所述散热底座对应设置的一贯穿部，所述竖板及所述挡板夹固于所述散热底座上，并且相对设置的所述夹持件定位所述导光板；
一背板，设于所述散热底座下方，并包覆所述散热底及所述夹持件；及
一胶框，由上向下固定所述导光板。
在本发明的一实施例中，所述直立壁设有一光源组，所述光源组的光线发射方向朝向所述导光板的入光面。
在本发明的一实施例中，所述散热底座上表面另包含多个第一凸出部及第二凸出部，所述第一凸出部位于所述导光板下方并支撑所述导光板，所述第二凸出部位于所述散热底座的直立壁与所述贯穿部之间以抵靠所述挡板。
在本发明的一实施例中，所述第二凸出部设有一光源组，所述光源组的光线发射方向朝向所述导光板的入光面。
在本发明的一实施例中，所述夹持件的挡板朝向所述散热底座的第二凸出部设有弹性凸起，所述弹性凸起抵靠所述散热底座的第二凸出部以增加所述夹持件的稳固性。
在本发明的一实施例中，所述夹持件的挡板朝向所述导光板设有弹性凸起，所述弹性凸起抵靠所述导光板以增加所述导光板的稳固性。
在本发明的一实施例中，所述夹持件的底部设有一开孔，所述散热底座对应设有一螺孔，以提供螺固件将所述夹持件固定于所述散热底座。
在本发明的一实施例中，所述散热底座的贯穿部呈封闭的开槽状。
在本发明的一实施例中，所述散热底座的贯穿部呈开放的缺口状。
本发明背光模块的导光板固定构造，不需要对导光板制作凸耳或凹槽结构，故节省裁切作业使成本相对降低。并且，相较于现有的另一种通过整条胶框来固定导光板的方式，本发明以多点式的夹持件来定位导光板，更能节省制造成本。
有益效果
本发明背光模块的导光板固定构造，不需要对导光板制作凸耳或凹槽结构，故节省裁切作业使成本相对降低。并且，相较于现有的另一种通过整条胶框来固定导光板的方式，本发明以多点式的夹持件来定位导光板，更能节省制造成本 。
附图说明
图1：一种现有背光模块的构造立体分解图。
图2：本发明背光模块的第一实施例的俯视图。
图3：图2的局部视图。
图4A：本发明背光模块的第一实施例的散热底座的局部俯视图。
图4B：本发明背光模块的第一实施例的夹持件的立体图。
图4C：本发明背光模块的第一实施例的导光板固定构造的侧剖视图。
图5A：本发明背光模块的第二实施例的夹持件的立体图。
图5B：本发明背光模块的第二实施例的导光板固定构造的侧剖视图。
图6：本发明背光模块的第三实施例的导光板固定构造的侧剖视图。
图7A：本发明背光模块的第四实施例的夹持件的立体图。
图7B：本发明背光模块的第四实施例的导光板固定构造的侧剖视图。
图8：本发明背光模块的第五实施例的散热底座的局部俯视图。
图9：本发明背光模块的第六实施例的散热底座的局部俯视图。
 本发明的最佳实施方式
为让本发明上述目的、特征及优点更明显易懂，下文特举本发明较佳实施例，并配合附图，作详细说明。
请同时参照图2及图3，图2是本发明背光模块的第一实施例的俯视图；图3是图2的局部视图。一背光模块包含一导光板10、一散热底座20及多个夹持件30。散热底座20呈平板状对应设于导光板10的下方，并且散热底座20相对导光板10的四个侧面分别设有至少一夹持件30，如图2所示，例如每个侧面设两个夹持件30且分别靠近导光板10的两端。通过位于四个侧面的多个夹持件30抵靠于导光板10的侧面以定位所述导光板10。另外，位于左右两侧的可进一步设置光源组40，详细的设置方式于下文中说明。
再者，本发明并不限定使用夹持件30的数量，以及设置于导光板10的具体侧面等位置，但夹持件30至少设于导光板10的一组对应的侧边面上时能定位导光板10。并且，夹持件30的设置是以不妨碍所述光源组40的光源射入导光板10为基本要求。
请再同时参照图4A、图4B及图4C所示，图4A是本发明背光模块的第一实施例的散热底座的局部俯视图；图4B是本发明背光模块的第一实施例的夹持件的立体图；图4C是本发明背光模块的第一实施例的导光板固定构造的侧剖视图。散热底座20设有多个贯穿部21及至少一侧面向上延伸设置的直立壁22，每一贯穿部21呈封闭的开槽状。每一夹持件30包含一底部31以及垂直设于底部31上的一挡板32及至少一竖板33，例如图4B中有两个竖板33，并且挡板32及竖板33相隔一段距离。如图4C所示，夹持件30的竖板33抵靠散热底座20的直立壁22，并且挡板32穿过散热底座20的一贯穿部21，竖板33及挡板32夹固于散热底座20上，并且相对导光板10两侧面设置的夹持件30定位导光板10。
优选的，夹持件30是一金属钣件，如图4B所示的夹持件30，为了方便制作挡板32及竖板33的弯折成型，可能具有多个凸出处(未标示)，但非用以限制本发明。
优选的，直立壁22内侧装设有一光源组40，光源组40的光线发射方向朝向导光板10的入光面。
请再同时参照图5A及图5B所示，图5A是本发明背光模块的第二实施例的夹持件的立体图；图5B是本发明背光模块的第二实施例的导光板固定构造的侧剖视图。本发明背光模块的第二实施例中的导光板固定构造与本发明背光模块中的第一实施例的导光板固定构造相似，因此沿用相同的元件名称，但二者的不同之处在于：本实施例中，散热底座20上表面另包含多个第一凸出部23及第二凸出部24，第一凸出部23位于导光板10下方并支撑导光板10，第二凸出部24位于散热底座20的直立壁22与贯穿部21之间，以抵靠挡板32。
优选的，第二凸出部24上设有光源组40，也就是说光源组40除了可抵贴于直立壁22的内侧之外，也能抵贴于第二凸出部24上，光源组40的光线发射方向朝向导光板10的入光面。
优选的，如图5B所示，夹持件30的挡板32朝向散热底座20的第二凸出部24设有弹性凸起34a，弹性凸起34a抵靠散热底座20的第二凸出部24以增加夹持件30的稳固性。
另外，背光模块另包含一背板50，背板50设于散热底座20下方，并包覆散热底20及夹持件30。
请再参照图6所示，图6是本发明背光模块的第三实施例的导光板固定构造的侧剖视图。本发明背光模块的第三实施例的导光板固定构造与本发明背光模块的第二实施例的导光板固定构造相似，因此沿用相同的元件名称，但二者的不同之处在于：夹持件30的挡板32朝向导光板10设有弹性凸起34b，弹性凸起34b抵靠导光板10以增加导光板10的稳固性。
请再同时参照图7A及图7B所示，图7A是本发明背光模块的第四实施例的夹持件的立体图；图7B是本发明背光模块的第四实施例的导光板固定构造的侧剖视图。本发明背光模块的第四实施例的导光板固定构造与本发明背光模块的第一实施例与第二实施例的导光板固定构造相似，因此沿用相同的元件名称，但二者的不同之处在于：本实施例中夹持件30的底部设有一开孔35，散热底座20对应设有一螺孔(未标示)，以提供螺固件36将夹持件30固定于散热底座20。
另外，背光模块另包含一胶框60，胶框60由上向下固定导光板10。
请再参照图8所示，图8是本发明背光模块的第五实施例的散热底座的局部俯视图。本发明背光模块的第五实施例的散热底座与本发明背光模块的第一实施例的散热底座相似，因此沿用相同的元件名称，但二者的不同之处在于：如图8所示，散热底座20的贯穿部21虽也是呈封闭的开槽状，但其开槽状可不完全对应夹持件30的挡板32的剖面形状，其中只有图中贯穿部21靠右的边缘提供夹持件30的挡板32用以夹持使用。
请再参照图9所示，图9是本发明背光模块的第六实施例的散热底座的局部俯视图。本发明背光模块的第六实施例的散热底座与本发明背光模块的第一实施例的散热底座相似，因此沿用相同的元件名称，但二者的不同之处在于：如图9所示，散热底座20的贯穿部21是呈一开放的缺口状，其中也只有图中贯穿部21靠右的边缘提供夹持件30的挡板32用以夹持使用。
综上所述，相较于现有的背光模块的导光板固定构造，本发明的背光模块包含一导光板、一散热底座及多个夹持件。其中，散热底座呈平板状对应设于导光板的下方。散热底座于导光板的侧面设有多个夹持件，每一夹持件包含一底部以及垂直设于底部上的一挡板及至少一竖板，竖板及挡板夹固于散热底座上，多个夹持件所述导光板。因此，本发明不需要对导光板制作凸耳或凹槽结构，故节省裁切作业使成本相对降低。
本发明已由上述相关实施例加以描述，然而上述实施例仅为实施本发明的范例。必需指出的是，已公开的实施例并未限制本发明的范围。相反地，包含于权利要求书的精神及范围的修改及均等设置均包括于本发明的范围内。
 本发明的实施方式
工业实用性
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Claims (20)

  1. 一种背光模块的导光板固定构造，其特征在于：所述导光板固定构造包含：
    一导光板；
    一散热底座，呈平板状对应设于所述导光板的下方，所述散热底座的至少一侧面设有一向上延伸的直立壁，所述直立壁设有一光源组，所述光源组的光线发射方向朝向所述导光板的入光面；及
    多个夹持件，所述散热底座于所述导光板的至少两对应的侧面分别设有夹持件，每一所述夹持件包含一底部以及垂直设于所述底部上的一挡板及至少一竖板，所述竖板抵靠所述散热底座的直立壁，并且所述挡板穿过所述散热底座对应设置的一贯穿部，所述贯穿部呈封闭的开槽状，所述竖板及所述挡板夹固于所述散热底座上，并且相对设置的所述夹持件定位所述导光板。
  2. 如权利要求1所述的背光模块的导光板固定构造，其特征在于：所述散热底座上表面另包含多个第一凸出部及第二凸出部，所述第一凸出部位于所述导光板下方并支撑所述导光板，所述第二凸出部位于所述散热底座的直立壁与所述贯穿部之间以抵靠所述挡板。
  3. 如权利要求2所述的背光模块的导光板固定构造，其特征在于：所述夹持件的挡板朝向所述散热底座的第二凸出部设有弹性凸起，所述弹性凸起抵靠所述散热底座的第二凸出部以增加所述夹持件的稳固性。
  4. 如权利要求1所述的背光模块的导光板固定构造，其特征在于：所述夹持件的挡板朝向所述导光板设有弹性凸起，所述弹性凸起抵靠所述导光板以增加所述导光板的稳固性。
  5. 一种背光模块的导光板固定构造，其特征在于：所述导光板固定构造包含：
    一导光板；
    一散热底座，呈平板状对应设于所述导光板的下方，所述散热底座的至少一侧面设有一向上延伸的直立壁；及
    多个夹持件，所述散热底座于所述导光板的至少两对应的侧面分别设有夹持件，每一所述夹持件包含一底部以及垂直设于所述底部上的一挡板及至少一竖板，所述竖板抵靠所述散热底座的直立壁，并且所述挡板穿过所述散热底座对应设置的一贯穿部，所述竖板及所述挡板夹固于所述散热底座上，并且相对设置的所述夹持件定位所述导光板。
  6. 如权利要求5所述的背光模块的导光板固定构造，其特征在于：所述直立壁设有一光源组，所述光源组的光线发射方向朝向所述导光板的入光面。
  7. 如权利要求5所述的背光模块的导光板固定构造，其特征在于：所述散热底座上表面另包含多个第一凸出部及第二凸出部，所述第一凸出部位于所述导光板下方并支撑所述导光板，所述第二凸出部位于所述散热底座的直立壁与所述贯穿部之间以抵靠所述挡板。
  8. 如权利要求7所述的背光模块的导光板固定构造，其特征在于：所述第二凸出部设有一光源组，所述光源组的光线发射方向朝向所述导光板的入光面。
  9. 如权利要求7所述的背光模块的导光板固定构造，其特征在于：所述夹持件的挡板朝向所述散热底座的第二凸出部设有弹性凸起，所述弹性凸起抵靠所述散热底座的第二凸出部以增加所述夹持件的稳固性。
  10. 如权利要求5所述的背光模块的导光板固定构造，其特征在于：所述夹持件的挡板朝向所述导光板设有弹性凸起，所述弹性凸起抵靠所述导光板以增加所述导光板的稳固性。
  11. 如权利要求5所述的背光模块的导光板固定构造，其特征在于：所述夹持件的底部设有一开孔，所述散热底座对应设有一螺孔，以提供螺固件将所述夹持件固定于所述散热底座。
  12. 如权利要求5所述的背光模块的导光板固定构造，其特征在于：所述散热底座的贯穿部呈封闭的开槽状。
  13. 如权利要求5所述的背光模块的导光板固定构造，其特征在于：所述散热底座的贯穿部呈开放的缺口状。
  14. 一种背光模块，其特征在于：所述背光模块包含：
    一导光板；
    一散热底座，呈平板状对应设于所述导光板的下方，所述散热底座的至少一侧面设有一向上延伸的直立壁；
    多个夹持件，所述散热底座于所述导光板的至少两对应的侧面分别设有夹持件，每一所述夹持件包含一底部以及垂直设于所述底部上的一挡板及至少一竖板，所述竖板抵靠所述散热底座的直立壁，并且所述挡板穿过所述散热底座对应设置的一贯穿部，所述竖板及所述挡板夹固于所述散热底座上，并且相对设置的所述夹持件定位所述导光板；
    一背板，设于所述散热底座下方，并包覆所述散热底及所述夹持件；及一胶框，由上向下固定所述导光板。
  15. 如权利要求14所述的背光模块，其特征在于：所述直立壁设有一光源组，所述光源组的光线发射方向朝向所述导光板的入光面。
  16. 如权利要求14所述的背光模块，其特征在于：所述散热底座上表面另包含多个第一凸出部及第二凸出部，所述第一凸出部位于所述导光板下方并支撑所述导光板，所述第二凸出部位于所述散热底座的直立壁与所述贯穿部之间以抵靠所述挡板。
  17. 如权利要求16所述的背光模块，其特征在于：所述夹持件的挡板朝向所述散热底座的第二凸出部设有弹性凸起，所述弹性凸起抵靠所述散热底座的第二凸出部以增加所述夹持件的稳固性。
  18. 如权利要求14所述的背光模块，其特征在于：所述夹持件的挡板朝向所述导光板设有弹性凸起，所述弹性凸起抵靠所述导光板以增加所述导光板的稳固性。
  19. 如权利要求14所述的背光模块，其特征在于：所述夹持件的底部设有一开孔，所述散热底座对应设有一螺孔，以提供螺固件将所述夹持件固定于所述散热底座。
  20. 如权利要求14所述的背光模块，其特征在于：所述散热底座的贯穿部呈封闭的开槽状或开放的缺口状。
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