WO2014047999A1 - 背光模组及液晶显示装置 - Google Patents

背光模组及液晶显示装置 Download PDF

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Publication number
WO2014047999A1
WO2014047999A1 PCT/CN2012/083508 CN2012083508W WO2014047999A1 WO 2014047999 A1 WO2014047999 A1 WO 2014047999A1 CN 2012083508 W CN2012083508 W CN 2012083508W WO 2014047999 A1 WO2014047999 A1 WO 2014047999A1
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WO
WIPO (PCT)
Prior art keywords
limiting
light guide
guide plate
frame
backlight module
Prior art date
Application number
PCT/CN2012/083508
Other languages
English (en)
French (fr)
Inventor
陈仕祥
杨瑞连
Original Assignee
深圳市华星光电技术有限公司
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.)
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US13/701,830 priority Critical patent/US20140152941A1/en
Publication of WO2014047999A1 publication Critical patent/WO2014047999A1/zh

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0081Mechanical 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
    • G02B6/0086Positioning aspects
    • G02B6/0088Positioning aspects of the light guide or other optical sheets in the package
    • 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
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0081Mechanical 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
    • G02B6/0086Positioning aspects
    • G02B6/0091Positioning aspects of the light source relative to the light guide
    • 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 backlight module and a liquid crystal display device.
  • Liquid crystal display devices are more and more popular among consumers because of their advantages of lightness, thinness and low energy consumption.
  • the pursuit of narrower frames has become the mainstream of the market.
  • the backlight module of the liquid crystal display device includes: a plastic frame 10, a light guide plate 20, an optical film 21 disposed on the light guide plate 20, a back plate 30, and a light source 40; the light guide plate 20 and the optical thereon
  • the diaphragm 21 is disposed above the back plate 30, and the plastic frame 10 is used to press the light-emitting surface of the light guide plate 20 to fix the light guide plate 20 in the back plate 30.
  • the plastic frame 10 is pressed against the light guide plate through the limiting portion 11 thereof. Above the edge of the light exit surface of 20.
  • the width of the limiting portion 11 becomes smaller and smaller, that is, the size pressed on the light guide plate 20 becomes smaller and smaller, and the plastic frame 10 has poor rigidity due to its own, when the light guide plate 20 has When deformed, the plastic frame 10 is difficult to press the light guide plate 20 through the limiting portion 11, causing a large deformation or displacement of the light guide plate 20, thereby causing the liquid crystal display device to display a lower taste.
  • the winner may place the liquid crystal panel on top. broken.
  • the technical problem to be solved by the present invention is to provide a backlight module and a liquid crystal display device which are relatively reliable in fixing a light guide plate.
  • a backlight module comprising: a backboard;
  • a light source disposed on one side of the backlight module opposite to the light incident surface of the light guide plate;
  • the limit frame for limiting the light guide plate disposed at the edge of the light guide plate, the limit The position frame is a sheet metal member, and the limiting frame is provided with a limiting portion and a fixing portion connected to the limiting portion, and the limiting frame is fixed to the backboard by the fixing portion, the limit position a portion is pressed over the edge of the light-emitting surface of the light guide plate;
  • the light source is disposed on the limiting frame, and a sidewall of the backing plate is disposed with a notch for avoiding the light source;
  • An indentation and a recess are formed between the fixing portion of the positioning frame and the side wall of the backboard, and the positioning frame and the backing plate are mutually fixed by the interlocking buckles and the mouth.
  • a backlight module includes: a back plate; a light guide plate disposed in the back plate; and a light source disposed on one side of the backlight module and the light incident surface of the light guide plate And a limiting frame disposed on the edge of the light guide plate for limiting the light guide plate, wherein the limiting frame is a sheet metal member, and the limiting frame is provided with a limiting portion and the limiting portion
  • the fixing portion is fixed to the back plate by the fixing portion, and the limiting portion is pressed against an edge of the light emitting surface of the light guide plate.
  • the light source is disposed on the limiting frame, and a sidewall of the backing plate is provided with a notch for avoiding the light source.
  • the brightness distance can be increased and the display effect can be improved.
  • the width of the light guide plate can be increased at the same time, and the brightness at the edge of the liquid crystal display device can be improved in the narrow frame design.
  • the fixing portion of the limiting frame and the side wall of the backboard are provided with interlocking buckles and recesses, and the limiting frame and the backing plate are realized by the interlocking buckles and recesses Fixed to each other.
  • the assembly between the limiting frame and the backboard is more convenient, and the assembly efficiency of the backlight module is improved.
  • the recess is disposed on the fixing portion of the limiting frame, and the undercut is disposed on a sidewall of the backboard.
  • the notch is disposed on a sidewall of the backboard, and the undercut is disposed on a fixing portion of the limiting frame.
  • the middle frame is fixed to the back plate by screws.
  • the way the screws are fixed is more reliable.
  • the backboard is further provided with a protrusion for supporting the light guide plate. Reduce the heat generated by the light source to the light guide plate.
  • the sheet metal material is a copper alloy. Copper alloys have better heat dissipation efficiency.
  • the sheet metal material is an aluminum alloy.
  • Aluminum alloys are relatively inexpensive and have better heat dissipation efficiency.
  • a liquid crystal display device includes the above backlight module.
  • the invention mainly provides a limit frame made of sheet metal material for limiting the light guide plate of the backlight module. Since the sheet metal material has high rigidity, the reliability of the position limit of the light guide plate can be improved. In the narrow frame design, since the limit frame made of sheet metal material has high rigidity, the width of the limit portion can be made smaller than the width of the limit portion of the existing plastic frame, and further reduced. The width of the frame of the small liquid crystal display device, and the frame frame with higher rigidity can maintain the function of fixing the light guide plate with good limit while reducing the width of the limiting portion, thereby preventing the light guide plate from being generated when the heat is deformed. The larger displacement reduces the display taste of the liquid crystal display device, and the safety of the liquid crystal panel can be effectively protected.
  • Figure 1 is a structural tube diagram of a conventional backlight module
  • FIG. 2 is a structural view of a backlight module according to an embodiment of the present invention.
  • plastic frame 20, light guide plate, 30, back plate, 40, light source, 11, limit, 31, side wall of the back panel, 32, inverted buckle, 33, raised, 50, limit frame , 51, limit, 52, fixed, 53, notch.
  • the backlight module of the liquid crystal display device includes: a limiting frame 50, a light guide plate 20, an optical film 21 disposed on the light guide plate 20, a back plate 30, and a light source 40; the light guide plate 20 and thereon The optical film 21 is disposed above the back plate 30; and the limiting frame 50 is used to press (position) the edge of the light-emitting surface of the light guide plate 20 to fix the light guide plate 20 in the back plate 30; wherein, the limit position Frame 50 is For the sheet metal member, the limiting frame 50 is provided with a limiting portion 51 and a fixing portion 52 connected to the limiting portion and being relatively perpendicular to the fixing portion 52. The limiting frame 50 is fixed to the back plate 30 by the fixing portion 52.
  • the limiting portion 51 is pressed against the edge of the light-emitting surface of the light guide plate 20.
  • the utility model mainly provides a limiting frame 50 made of a sheet metal material for limiting the light guide plate 20 of the backlight module. Since the sheet metal material has the characteristics of high rigidity, the position of the light guide plate 20 can be increased. Reliability. In the narrow frame design, since the limiting frame 50 made of the sheet metal material has high rigidity, the width of the limiting portion 51 can be made smaller than the limit of the existing plastic frame.
  • the frame width of the liquid crystal display device is reduced, and the frame having a higher rigidity can maintain the function of fixing the light guide plate with a good limit while reducing the width of the limiting portion, thereby preventing the light guide plate from being deformed by heat.
  • the display taste of the liquid crystal display device is lowered, and the safety of the liquid crystal panel can be effectively protected.
  • an interlocking buckle 32 and a recess 53 which are mutually fixed by the interlocking buckle 32 and the recess 53 which are engaged with each other.
  • the notch 53 is disposed on the limiting frame 50, and the undercut 32 is disposed on the side wall 31 of the backboard 30.
  • the limiting frame 50 is depressed to make the recess 53 and the backing plate 30.
  • the undercuts 32 are engaged with each other to fix the limiting frame 50 on the backboard 30; or, the notches may be disposed on the backboard, and the undercuts are disposed on the limiting frame.
  • the limit frame 50 can also be fixed to the back plate 30 by screws, and the reliability of the screw installation is high.
  • the light source 40 can be directly disposed on the limiting frame 50.
  • the side wall 31 of the backboard 30 is provided with a notch (not shown) for avoiding the light source 40.
  • the notch can accommodate the light source 40, so that the light source 40 can face the light source 40.
  • the light incident surface of the light guide plate 20 Since the light source 40 is disposed on the limiting frame 50 instead of the backing plate, the position thereof is moved from the inside to the outside of the backlight module, thereby increasing the distance between the light guiding plate 20 and the light guiding plate 20, thereby avoiding the firefly phenomenon; or At the same time, the width of the light guide plate 20 is increased, and the edge of the light guide plate 20 is further brought closer to the edge of the backlight module, thereby facilitating the design of the narrow frame, and ensuring the brightness of the display at the edge of the liquid crystal panel during the narrow frame design. .
  • the sheet metal material used in the limiting frame 50 of the embodiment is preferably a material having better thermal conductivity, such as a copper alloy or an aluminum alloy, which is beneficial to the heat generated by the light source 40 in time. Diverging out to protect the components inside the backlight module.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

一种背光模组及液晶显示装置,包括:背板(30);导光板(20),设置在背板(30)内;光源(40),设置在背光模组的一侧与导光板(20)的入光面相对;还包括一设置在导光板(20)边缘的用于对导光板(20)进行限位的限位框架(50),限位框架(50)为钣金件,限位框架(50)设置有一限位部(51)以及与该限位部(51)连接的固定部(52),限位框架(50)通过固定部(52)固定到背板(30)上,限位部(51)抵压在导光板(20)的出光面的边缘处之上。

Description

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, 涉及一种背光模组及液晶显示装 置。
【背景技术】
液晶显示装置由于其轻、 薄以及耗能低等优势越来越受到消费者的喜爱, 但随着液晶显示技术的发展, 追求更窄的边框变成市场的主流。
如图 1所示, 液晶显示装置的背光模组包括: 胶框 10、 导光板 20、 设置 在导光板 20上的光学膜片 21、 背板 30以及光源 40; 导光板 20以及其上的光 学膜片 21设置在背板 30上方, 而使用胶框 10来压住导光板 20的出光面以使 导光板 20固定在背板 30内, 胶框 10通过其限位部 11抵压在导光板 20的出光 面的边缘处之上。 随着窄边框化设计的进行, 限位部 11的宽度越来越小, 即压 在导光板 20上的尺寸越来越小, 而胶框 10由于本身的刚性较差, 当导光板 20 有变形时, 胶框 10就很难再通过限位部 11压住导光板 20, 使导光板 20发生较 大的形变或位移, 从而造成液晶显示装置显示上品味降低胜者可能会将液晶面 板顶破。
【发明内容】
本发明所要解决的技术问题是提供一种导光板固定较为可靠的背光模组及 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: 一种背光模组, 包括: 背板;
导光板, 设置在背板内;
光源, 设置在背光模组的一侧与导光板的入光面相对;
还包括一设置在导光板边缘的用于对导光板进行限位的限位框架, 所述限 位框架为钣金件, 所述限位框架设置有一限位部以及与该限位部连接的固定部, 所述限位框架通过所述固定部固定到所述背板上, 所述限位部抵压在所述导光 板的出光面的边缘处之上;
所述光源设置在所述限位框架上, 所述背板的侧壁上设置有避让所述光源 的缺口;
所述定位框架的固定部与背板的侧壁之间设置有相互咬合的倒扣和凹口, 所述定位框架与背板通过所述相互咬合的倒扣和 口实现相互固定。
本发明的目的还可以通过以下技术方案来实现: 一种背光模组, 包括: 背 板; 导光板, 设置在背板内; 光源, 设置在背光模组的一侧与导光板的入光面 相对; 还包括一设置在导光板边缘的用于对导光板进行限位的限位框架, 所述 限位框架为钣金件, 所述限位框架设置有一限位部以及与该限位部连接的固定 部, 所述限位框架通过所述固定部固定到所述背板上, 所述限位部抵压在所述 导光板的出光面的边缘处之上。
优选的, 所述光源设置在所述限位框架上, 所述背板的侧壁上设置有避让 所述光源的缺口。 这样可以增大藕光距离, 提高显示效果; 或者, 可以同时增 大导光板的宽度, 在窄边框化设计中有利于提高液晶显示装置边缘处的亮度。
优选的, 所述限位框架的固定部与背板的侧壁之间设置有相互咬合的倒扣 和凹口, 所述限位框架与背板通过所述相互咬合的倒扣和凹口实现相互固定。 使限位框架与背板之间的组装更为方便, 提高背光模组的组装效率。
优选的, 所述凹口设置在所述限位框架的固定部上, 所述倒扣设置在所述 背板的侧壁上。
优选的, 所述凹口设置在所述背板的侧壁上, 所述倒扣设置在所述限位框 架的固定部上。
优选的, 所述中框用螺丝固定到背板上。 螺丝固定的方式更为可靠。
优选的, 所述背板还设置有用于承托所述导光板的凸起。 减少光源产生的 热量传到导光板上。 优选的, 所述钣金件材质为铜合金。 铜合金的散热效率较好。
优选的, 所述钣金件材质为铝合金。 铝合金相对较为便宜, 且散热效率较 好。
一种液晶显示装置, 包括上述的背光模组。
本发明主要在于提供一种钣金材料制作的限位框架用于对背光模组的导光 板进行限位, 由于钣金材料具有刚性较高的特点, 可提高对导光板限位的可靠 性。 在窄边框化设计中, 由于使用钣金材料制作的限位框架具有较高的刚性, 因而其限位部的宽度可以制作成相对于现有的胶框的限位部宽度更小, 进而减 小液晶显示装置的边框宽度, 而刚性较高的限位框架在减小限位部的宽度的情 况下依然可以保持良好的限位固定导光板的功能, 从而避免导光板在发热变形 时发生产生较大的位移而降低液晶显示装置的显示品味, 也可有效的保护液晶 面板的安全。
【附图说明】
图 1现有的背光模组的结构筒图,
图 2是本发明实施例背光模组的结构筒图。
其中: 10、 胶框, 20、 导光板, 30、 背板, 40、 光源, 11、 限位部, 31、 背板的侧壁, 32、 倒扣, 33、 凸起, 50、 限位框架, 51、 限位部, 52、 固定部, 53、 凹口。
【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 2所示, 液晶显示装置的背光模组包括: 限位框架 50、 导光板 20、 设 置在导光板 20上的光学膜片 21、 背板 30以及光源 40; 导光板 20以及其上的 光学膜片 21设置在背板 30上方; 而限位框架 50用来来压住(定位 )导光板 20 的出光面的边缘处以使导光板 20固定在背板 30内; 其中, 所述限位框架 50为 钣金件, 所述限位框架 50设置有一限位部 51 以及与该限位部连接并相对垂直 的固定部 52, 所述限位框架 50通过所述固定部 52固定到所述背板 30上, 所述 限位部 51抵压在所述导光板 20的出光面的边缘处之上。 本实用新型主要在于 提供一种钣金材料制作的限位框架 50用于对背光模组的导光板 20进行限位, 由于钣金材料具有刚性较高的特点, 可提高对导光板 20限位的可靠性。 在窄边 框化设计中, 由于使用钣金材料制作的限位框架 50具有较高的刚性, 因而其限 位部 51的宽度可以制作成相对于现有的胶框的限位部更小的宽度, 进而减小液 晶显示装置的边框宽度, 而刚性较高的限位框架在减小限位部的宽度的情况下 依然可以保持良好的限位固定导光板的功能, 从而避免导光板在发热变形时发 生产生较大的位移而降低液晶显示装置的显示品味, 也可有效的保护液晶面板 的安全。
限位框架 50与背板 30之间设置有相互咬合的倒扣 32和凹口 53 ,所述限位 框架 50与背板 30通过所述相互咬合的倒扣 32和凹口 53实现相互固定。 所述 凹口 53设置在所述限位框架 50上, 而倒扣 32则设置在背板 30的侧壁 31上, 组装时将限位框架 50压下使凹口 53与背板 30上的倒扣 32相互咬合使限位框 架 50固定在背板 30上; 或者, 凹口也可以设置在背板上, 而倒扣设置在限位 框架上。 通过这样的设置, 有利于提高背光模组的组装效率。 当然, 限位框架 50也可以通过螺丝固定到背板 30上, 螺丝安装的可靠性较高。
光源 40可直接设置在限位框架 50上, 在背板 30的侧壁 31上设置有避让 该光源 40的缺口 (图中未示出), 该缺口可以容纳光源 40, 使光源 40能够正对 导光板 20的入光面,。 由于光源 40设置在限位框架 50上而不是背板上, 其位 置也就由背光模组内部向外侧移动, 从而增大其与导光板 20的藕光距离, 从而 可以避免萤火虫现象; 或者, 同时增大导光板 20的宽度, 使导光板 20的边缘 向背光模组的最边缘进一步靠近, 这样, 有利于窄边框化的设计, 在窄边框化 设计时保证了液晶面板边缘处显示的亮度。
为了减少光源 40所产生的热量通过背板 30传到导光板 20上造成影响, 在 背板 30上设置有用于承托导光板 20的凸起 33。 同时, 为了提高散热效率, 本 实施例所述限位框架 50所使用的钣金材料最好为导热性较好的材料, 比如铜合 金或铝合金, 这样有利于及时将光源 40所产生的热量发散出去, 保护背光模组 内部的组件。
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、 一种背光模组, 包括:
背板;
导光板, 设置在背板内;
光源, 设置在背光模组的一侧与导光板的入光面相对;
还包括一设置在导光板边缘的用于对导光板进行限位的限位框架, 所述限 位框架为钣金件, 所述限位框架设置有一限位部以及与该限位部连接的固定部, 所述限位框架通过所述固定部固定到所述背板上, 所述限位部抵压在所述导光 板的出光面的边缘处之上;
所述光源设置在所述限位框架上, 所述背板的侧壁上设置有避让所述光源 的缺口;
所述定位框架的固定部与背板的侧壁之间设置有相互咬合的倒扣和凹口, 所述定位框架与背板通过所述相互咬合的倒扣和 口实现相互固定。
2、 一种背光模组, 包括:
背板;
导光板, 设置在背板内;
光源, 设置在背光模组的一侧与导光板的入光面相对;
还包括一设置在导光板边缘的用于对导光板进行限位的限位框架, 所述限 位框架为钣金件, 所述限位框架设置有一限位部以及与该限位部连接的固定部, 所述限位框架通过所述固定部固定到所述背板上, 所述限位部抵压在所述导光 板的出光面的边缘处之上。
3、如权利要求 2所述的背光模组, 其中, 所述光源设置在所述限位框架上, 所述背板的侧壁上设置有避让所述光源的缺口。
4、 如权利要求 2所述的背光模组, 其中, 所述定位框架的固定部与背板的 侧壁之间设置有相互咬合的倒扣和凹口, 所述定位框架与背板通过所述相互咬 合的倒扣和凹口实现相互固定。
5、 如权利要求 4所述的背光模组, 其中, 所述凹口设置在所述限位框架的 固定部上, 所述倒扣设置在所述背板的侧壁上。
6、 如权利要求 4所述的背光模组, 其中, 所述凹口设置在所述背板的侧壁 上, 所述倒扣设置在所述限位框架的固定部上。
7、 如权利要求 2所述的背光模组, 其中, 所述中框用螺丝固定到背板上。
8、 如权利要求 2所述的背光模组, 其中, 所述背板还设置有用于承托所述 导光板的凸起。
9、 如权利要求 2所述的背光模组, 其中, 所述钣金件材质为铜合金。
10、 如权利要求 2所述的背光模组, 其中, 所述钣金件材质为铝合金。
11、 一种液晶显示装置, 包括:
背板;
导光板, 设置在背板内;
光源, 设置在背光模组的一侧与导光板的入光面相对;
还包括一设置在导光板边缘的用于对导光板进行限位的限位框架, 所述限 位框架为钣金件, 所述限位框架设置有一限位部以及与该限位部连接的固定部, 所述限位框架通过所述固定部固定到所述背板上, 所述限位部抵压在所述导光 板的出光面的边缘处之上。
12、 如权利要求 11所述的液晶显示装置, 其中, 所述光源设置在所述限位 框架上, 所述背板的侧壁上设置有避让所述光源的缺口。
13、 如权利要求 11所述的液晶显示装置, 其中, 所述定位框架的固定部与 背板的侧壁之间设置有相互咬合的倒扣和凹口, 所述定位框架与背板通过所述 相互咬合的倒扣和凹口实现相互固定。
14、 如权利要求 13所述的液晶显示装置, 其中, 所述凹口设置在所述限位 框架的固定部上, 所述倒扣设置在所述背板的侧壁上。
15、 如权利要求 13所述的液晶显示装置, 其中, 所述凹口设置在所述背板 的侧壁上, 所述倒扣设置在所述限位框架的固定部上。
16、 如权利要求 11所述的液晶显示装置, 其中, 所述中框用螺丝固定到背 板上。
17、 如权利要求 11所述的液晶显示装置, 其中, 所述背板还设置有用于承 托所述导光板的凸起。
18、如权利要求 11所述的液晶显示装置, 其中, 所述钣金件材质为铜合金。
19、如权利要求 11所述的液晶显示装置, 其中, 所述钣金件材质为铝合金。
PCT/CN2012/083508 2012-09-29 2012-10-25 背光模组及液晶显示装置 WO2014047999A1 (zh)

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