WO2013120278A1 - 一种背光模组及液晶显示装置 - Google Patents

一种背光模组及液晶显示装置 Download PDF

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Publication number
WO2013120278A1
WO2013120278A1 PCT/CN2012/071649 CN2012071649W WO2013120278A1 WO 2013120278 A1 WO2013120278 A1 WO 2013120278A1 CN 2012071649 W CN2012071649 W CN 2012071649W WO 2013120278 A1 WO2013120278 A1 WO 2013120278A1
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WO
WIPO (PCT)
Prior art keywords
hole
mounting bracket
back frame
sidewall
screw
Prior art date
Application number
PCT/CN2012/071649
Other languages
English (en)
French (fr)
Inventor
俞刚
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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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
Publication of WO2013120278A1 publication Critical patent/WO2013120278A1/zh

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Classifications

    • 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
    • G02F1/1306—Details
    • G02F1/1309—Repairing; Testing
    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
    • 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
    • G02B6/009—Positioning aspects of the light source 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
    • G02F1/1335—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
    • 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
    • G02F2203/00—Function characteristic
    • G02F2203/68—Green display, e.g. recycling, reduction of harmful substances

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.
  • the backlight module is one of the key components of the liquid crystal display device, and is mainly used for providing sufficient light source with uniform brightness and distribution to enable the liquid crystal panel to display images normally.
  • the light source of the backlight module is provided by a light bar disposed in the module.
  • the LED light bar is provided with a plurality of LEDs, and the performance and usage of the LED are affected by various factors, such as the backlight module.
  • One or more of the LEDs in use may fail to emit light in the event of a failure, which may affect the display performance of the liquid crystal display device or even render the liquid crystal display device undisplayable. As shown in FIG.
  • a liquid crystal display module of the prior art if one LED or a plurality of LEDs in the LED light bar 110 in the backlight module is damaged, it is necessary to perform maintenance and repair in sequence, such as As shown in the figure, when the LED light bar 110 is to be repaired, the liquid crystal panel 200, the front frame 300, the plastic frame 400, the first optical film 510, the second optical film 520, the light guide plate 530, and the reflection sheet need to be sequentially removed.
  • the process is very complicated; and, in the process of disassembly and assembly, it is easy to cause damage to fragile components such as liquid crystal panel 200, optical film, etc., and in the process of repeated disassembly and assembly, it will also cause positioning errors, such as light guide plate 530 and LED. If the positioning error occurs in the light strip 110 during the disassembly and assembly process, it will affect the display quality of the display device after the repair.
  • the technical problem to be solved by the present invention is to provide a backlight module and a liquid crystal display device which are easy to maintain.
  • a backlight module includes a back frame and a light bar, and further includes a mounting bracket for fixing the light bar, the mounting bracket is fixed by a detachable connection On the back frame.
  • the mounting bracket is fixed to the back frame by screws. It is easy to install and disassemble with screws.
  • the screw includes a locking screw that locks the bottom of the mounting bracket to the back frame from the back of the back frame.
  • the bottom of the mounting bracket is in contact with the bottom panel of the back frame, and the locking is performed here to make the mounting bracket more stable.
  • the locking screw can be removed directly from the back of the back frame, that is, removed from the back of the liquid crystal display module. , thereby disassembling the light bar.
  • the screw further includes two end screws for locking the two ends of the mounting bracket to the side wall of the back frame, and the end faces of the mounting bracket are provided with blind holes for the end faces.
  • a side wall through hole is disposed on a side wall of the back frame corresponding to the blind hole of the end surface; the end screw includes a rotating shaft portion penetrating into the blind hole of the end surface and forming a clearance fit therebetween, and a locking and fixing portion a fixed section on the sidewall through hole. Since the rotating shaft portion of the end screw penetrates into the blind hole of the end surface to form a clearance fit therebetween, after the locking screw is removed, the mounting bracket can be rotated with the end screw as a rotating shaft, and the light bar can be outwardly used for maintenance. Flip, so that the mounting bracket is still connected to the backlight module, so that it is not necessary to disassemble the wires, connectors, etc., which saves maintenance time and reduces the risk of damage during disassembly and assembly.
  • the end screw is a stepped screw having two different diameter segments, the two different diameter segments are respectively the fixed segment and the rotating shaft segment, and the diameter of the fixed segment is larger than that of the rotating shaft segment
  • the end faces of the mounting brackets are provided with end face blind holes for mounting the stepped screws, and sidewalls of the back frame are provided with sidewall through holes corresponding to the blind holes.
  • the aperture of the through hole is larger than the aperture of the blind hole of the end surface; the rotating shaft section of the stepped screw penetrates into the blind hole to form a clearance fit, and the fixed section is locked and fixed on the sidewall through hole.
  • the fixed section has a larger diameter, which ensures the stepped screw in the back frame.
  • the locking strength on the side wall in addition, since the stepped screw penetrates into the blind hole of the end surface to form a clearance fit therebetween, after the locking screw is removed, the mounting bracket can be rotated by the rotating shaft of the stepped screw as a rotating shaft, thereby The light bar can be turned outwards during maintenance to facilitate maintenance, and since the mounting bracket is still connected to the backlight module, It is necessary to disassemble components such as wires and connectors, which saves maintenance time and reduces the risk of damage during disassembly and assembly.
  • the blind end holes on the end faces of the mounting brackets are disposed on the lower side or the upper side of the end faces of the mounting brackets, and the sidewall through holes are disposed at positions corresponding to the blind holes of the end faces.
  • the end screw passes through the side wall through hole and the end face blind hole and is locked on the side wall through hole.
  • the fixing section is provided with a thread, and the fixing section of the end screw and the side wall through hole are locked by a screw connection.
  • the fixed section is provided with a thread, and the end screw is threadedly connected to the side wall through hole, and the thread locking method is more reliable and stable.
  • the rotating shaft segment has no thread
  • the diameter of the rotating shaft portion is smaller than the diameter of the blind hole of the end surface
  • the rotating shaft portion penetrates the blind hole of the end surface to form a clearance fit therebetween.
  • the shaft section is not threaded, so that the machining process is performed, and the strength of the shaft section is increased and the friction with the blind hole is reduced.
  • the light bar is directly attached to the mounting bracket. Since the light bar is small, it is more convenient and quick to fix it to the mounting bracket by sticking, and it is not easy to cause damage to the light bar.
  • a liquid crystal display device includes the above backlight module.
  • the invention fixes the light bar in the backlight module on a mounting bracket, and then mounts the mounting bracket to the back plate through a detachable connection, so that the mounting bracket can be disassembled, if the light bar of the backlight module After one or more damages occur, the mounting bracket can be removed from the back of the liquid crystal display device, and the light bar can be directly repaired on the mounting bracket, and the structure to be removed is less, and the process cartridge is single;
  • the liquid crystal panel, the front frame, the plastic frame, the first optical film, the second optical film, the light guide plate and the reflection sheet are sequentially removed from the front to the rear of the liquid crystal panel with complicated structure, thereby reducing a large number of processes in the maintenance process, thereby
  • the efficiency of repairing the liquid crystal display device is greatly improved, and the maintenance cost of the liquid crystal display device is also reduced, and the reuse efficiency of the liquid crystal display device is improved.
  • 1 is a structural tube diagram of a conventional liquid crystal display module
  • FIG. 2 is a structural view of a back frame, a light bar and a mounting bracket of a backlight module according to an embodiment of the present invention
  • FIG. 3 is a partial enlarged view of A in FIG.
  • FIG. 4 is a structural view of a mounting bracket according to an embodiment of the present invention.
  • Figure 5 is a structural view of a stepped screw in the first embodiment of the present invention.
  • FIG. 6 is a view showing an assembly structure of a back frame, a light bar and a mounting bracket according to an embodiment of the present invention
  • Figure 7 is a partial enlarged view of B in Figure 6,
  • Figure 8 is a structural view of the end screw of the second embodiment of the present invention.
  • 110 light bar, 120, mounting bracket, 200, liquid crystal panel, 300, front frame, 400, plastic frame, 510, first optical film, 520, second optical film, 530, light guide plate, 540, Reflector, 600, back frame, 610, bottom plate through hole, 620, side wall through hole, 630, side wall, 700, step screw, 710, shaft section, 720, fixed section, 800, locking screw, 900, end Screw, 1210, blind hole, 1220, blind hole at the bottom.
  • FIG. 2 is a structural diagram of a back frame, a light bar, and a mounting bracket of a backlight module of a liquid crystal display device according to the present invention.
  • the backlight module includes a back frame 600, a light bar 110, and The mounting bracket 120 is fixed to the mounting bracket 120 by screws, bonding, etc., and the mounting bracket 120 is attached to the back frame 600 by a screw.
  • FIG. 2 and FIG. 3 are a preferred embodiment of the present invention.
  • three side walls 630 are respectively disposed at the edges of the back frame 600 of the backlight module of the liquid crystal display device, and the back frame 600 is disposed.
  • the mounting bracket 120 is fixed on the mounting bracket 120 to provide a light source for the liquid crystal display device, and the mounting bracket 120 is mounted to the opening of the back frame 600 by screws.
  • the bottom surface of the mounting bracket 120 is provided with a bottom blind hole 1220, and the bottom blind hole 1220 is a threaded hole.
  • the back frame 600 may also be a pin hole or the like; correspondingly, as shown in FIG. 3, the back frame 600 A bottom plate through hole 610 and a bottom blind hole 1220 are defined in the edge of the bottom plate.
  • the mounting bracket 120 is fixed from the back surface of the back frame 600 to the back frame 600 by the locking screw 800, thereby providing a light source for the backlight module, so that The rear side of the liquid crystal display module removes the mounting bracket 120 to remove the light bar.
  • the end faces of the mounting brackets 120 are respectively provided with blind holes 1210, and correspondingly, as shown in FIG. 3, the sidewalls 630 of the back frame 600 are provided with sidewalls.
  • the hole 620 corresponds to the end face blind hole 1210, and the side wall through hole 620 is also a threaded hole.
  • Both ends of the mounting bracket 120 are fixed on the side wall 630 by the step screw 700.
  • the stepped screw 700 has two different diameter segments, which are respectively a fixed segment 720 and a rotating shaft segment 710, and the diameter of the fixed segment 720 is larger than the diameter of the rotating shaft segment 710.
  • the aperture of the sidewall through hole 1220 is larger than the aperture of the end face blind hole 1210; the rotating shaft segment 710 of the stepped screw 700 penetrates into the blind hole 1210 of the stepped end to form a clearance fit,
  • the fixing section 720 is provided with a thread which is fixed to the side wall through hole by a thread locking.
  • the mounting bracket can be Rotating the rotating shaft section 710 of the stepped screw 700 as a rotating shaft, so that the light bar 110 can be turned outwards during maintenance, which is convenient for maintenance, and since the mounting bracket 120 is still connected to the backlight module, it is not required Disassembly of wires, connectors and other components saves maintenance time and reduces the risk of damage during disassembly and assembly.
  • the surface of the rotating shaft section 710 of the stepped screw 700 shown in FIG. 5 has no thread, and the diameter of the rotating shaft section 710 is smaller than the diameter of the blind end hole 1210.
  • the rotating shaft section 710 penetrates the blind hole of the end surface to form a clearance fit therebetween. .
  • the shaft section is not threaded, so that the machining process is completed, and the shaft section is improved at the same time. The strength and the friction with the blind hole.
  • the fixing section of the end screw 900 used for both ends of the mounting bracket has the same diameter as the rotating shaft section, wherein the fixing section is provided with a thread, and of course, the rotating shaft section can also be set. Threaded, so that ordinary conventional screws can be used without special customization, saving production costs. However, if there is no thread on the shaft, the strength of the screw can be increased and the friction between the screw and the blind hole on the mounting bracket can be avoided.

Abstract

一种背光模组及液晶显示装置，包括背框（600）以及灯条（110），还包括一用于固定所述灯条（110）的安装支架（120），所述安装支架（120）通过可拆卸的连接固定在所述背框（600）上。由于将背光模组中的灯条（110）固定在一个安装支架（120）上，然后再将安装支架（120）通过可拆卸的连接安装到背板上，这样，安装支架（120）可以进行拆卸，若背光模组中灯条（110）的一个或多个等发生损坏后，可以通过从液晶显示装置的背后将安装支架（120）拆卸下来，进而直接在安装支架（120）上对灯条（110）进行维修，而不需要依次拆除液晶面板（200）、前框（300）、胶框（400）、第一光学膜片（510）、第二光学膜片（520）、导光板（530）以及反射片（540）等组件，从而很大程度上提高了液晶显示装置的维修效率，降低了液晶显示装置的维修成本，提高了液晶显示装置的重复使用效率。

Description

【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】
背光模组为液晶显示装置的关键组件之一， 其主要用于提供足够的亮度与 分布均匀的光源， 使液晶面板能正常显示影像。
背光模组的光源由设置在模组中的灯条提供， 以 LED灯条为例， LED灯 条上设置有多颗 LED, LED的性能及使用情况受到多种因素的影响， 若背光模 组中的一个或多个 LED在使用在出现故障导致无法发光， 将会影响液晶显示装 置的显示性能甚至使液晶显示装置无法显示。 如图 1 所示为现有的一种液晶显 示模组， 若其背光模组中的 LED灯条 110中某一 LED或多个 LED损坏， 要对 其进行维修需要依次进行拆解维修， 如图中所示， 要对 LED灯条 110进行维修 时， 需要依次拆除液晶面板 200、 前框 300、 胶框 400、 第一光学膜片 510、 第 二光学膜片 520、 导光板 530以及反射片 540等组件， 过程十分复杂； 并且， 拆 装过程中容易导致脆弱部件如液晶面板 200、 光学膜片等的损坏， 在重复拆装过 程中， 还会导致定位的误差， 如导光板 530与 LED灯条 110若在拆装过程中出 现定位误差， 将会影响到经过维修后的也就显示装置的显示质量。
【发明内容】
本发明所要解决的技术问题是提供一种维修方便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， 包括背框以 及灯条， 还包括一用于固定所述灯条的安装支架， 所述安装支架通过可拆卸的 连接固定在所述背框上。 优选的， 所述安装支架通过螺釘固定在所述背框上。 使用螺釘安装拆卸， 工艺筒单， 方便快捷。
优选的， 所述螺釘包括锁定螺釘， 所述锁定螺釘从背框的背面将所述安装 支架的底部锁附到背框上。 安装支架的底部与背框的底板大面积接触， 在此处 进行锁附使安装支架的稳定性更高， 同时可以直接从背框的背面拆除锁定螺釘， 即从液晶显示模组的背面进行拆除， 从而将灯条拆卸下来。
优选的， 所述螺釘还包括两个将所述安装支架的两端锁附到所述背框的侧 壁上的端部螺釘， 所述安装支架的两端端面开设有端面盲孔， 所述背框的侧壁 上对应于所述端面盲孔的位置设置有侧壁通孔； 所述端部螺釘包括一段穿入所 述端面盲孔内与其形成间隙配合的转轴段， 以及一段锁紧固定在所述侧壁通孔 上的固定段。 由于端部螺釘的转轴段穿入所述端面盲孔内与其形成间隙配合， 在拆除锁定螺釘后， 安装支架可以以所述端部螺釘为转轴进行转动， 在进行维 修时可将灯条向外翻转， 这样安装支架仍然连接在背光模组上， 从而不需要拆 卸导线、 连接器等部件， 节约了维修时间的同时也减小了拆装过程中的损坏风 险。
优选的， 所述端部螺釘为具有两个不同直径分段的阶梯螺釘， 所述两个不 同直径分段分别为所述固定段和转轴段， 所述固定段的直径大于所述转轴段的 直径； 所述安装支架的两端端面设置有用于安装所述阶梯螺釘的端面盲孔， 所 述背框的侧壁上对应于所述盲孔的位置开设有侧壁通孔， 所述侧壁通孔的孔径 大于所述端面盲孔的孔径； 所述阶梯螺釘的转轴段穿入所述盲孔形成间隙配合， 所述固定段锁紧固定在所述侧壁通孔上。 通过阶梯螺釘的直径较小的转轴段， 使得在安装支架上的开孔得以减小， 保证了安装支架锁附点的强度， 同时， 固 定段由于直径较大， 保证了阶梯螺釘在背框的侧壁上的锁附强度； 另外， 由于 阶梯螺釘穿入所述端面盲孔内与其形成间隙配合， 在拆除锁定螺釘后， 安装支 架可以以所述阶梯螺釘的转轴段为转轴进行转动， 从而在维修时可将灯条向外 翻转， 方便维修的进行， 并且， 由于安装支架仍然连接在背光模组上， 所以不 需要拆卸导线、 连接器等部件， 节约了维修时间的同时也减小了拆装过程中的 损坏风险。
优选的， 所述安装支架的两端端面上的端面盲孔设置在所述安装支架两端 端面的下侧或上侧， 所述侧壁通孔对应于所述端面盲孔的位置设置在所述背框 的侧壁上， 所述端部螺釘穿过所述侧壁通孔以及所述端面盲孔并锁紧在所述侧 壁通孔上。 安装支架向外翻转时， 由于端部螺釘位于安装支架端面的上侧或下 侧， 因而安装支架翻转过程中不会触碰到背光模组内的其它组件， 同时也不会 影响到导线的连接， 保证拆装的安全。
优选的， 所述固定段上设置有螺纹， 所述端部螺釘的固定段与所述侧壁通 孔通过螺纹连接锁紧。 固定段上设置有螺纹， 端部螺釘通过螺纹连接在侧壁通 孔上， 螺纹锁紧的方式较为可靠、 稳定。
优选的， 所述转轴段上无螺纹， 所述转轴段的直径小于所述端面盲孔的孔 径， 所述转轴段穿入所述端面盲孔与其形成间隙配合。 转轴段不设置螺纹， 从 而筒化加工工艺， 同时提高转轴段的强度以及减小与盲孔恐怖的摩擦。
优选的， 所述灯条直接粘贴在所述安装支架上。 由于灯条较小， 通过粘贴 方式固定到安装支架上更为方便快捷， 同时不易造成灯条的损坏。
一种液晶显示装置， 包括了上述的背光模组。
本发明由于将背光模组中的灯条固定在一个安装支架上， 然后再将安装支 架通过可拆卸的连接安装到背板上， 这样， 安装支架可以进行拆卸， 若背光模 组中灯条的一个或多个等发生损坏后， 可以通过从液晶显示装置的背后将安装 支架拆卸下来， 进而直接在安装支架上对灯条进行维修， 其所要拆除的结构较 少， 工序筒单； 而不需要对结构复杂的液晶面板从前到后依次拆除液晶面板、 前框、 胶框、 第一光学膜片、 第二光学膜片、 导光板以及反射片等组件， 减少 了维修过程的大量工序， 从而很大程度上提高了维修液晶显示装置的效率， 进 而也使得液晶显示装置的维修成本得以降低， 提高了液晶显示装置的重复使用 效率。 【附图说明】
图 1是现有液晶显示模组的结构筒图，
图 2是本发明实施例一背光模组的背框、 灯条及安装支架的结构筒图， 图 3是图 2中 A的局部放大图，
图 4是本发明实施例一安装支架的结构筒图，
图 5是本发明实施例一中阶梯螺釘的结构筒图，
图 6是本发明实施例一背框、 灯条及安装支架的组装结构筒图，
图 7是图 6中 B的局部放大图，
图 8是本发明实施例二的端部螺釘的结构筒图。
其中： 110、 灯条， 120、 安装支架， 200、 液晶面板， 300、 前框， 400、 胶 框， 510、 第一光学膜片， 520、 第二光学膜片， 530、 导光板， 540、 反射片， 600、 背框， 610、 底板通孔， 620、 侧壁通孔， 630、 侧壁， 700、 阶梯螺釘， 710、 转轴段， 720、 固定段， 800、锁紧螺釘， 900、端部螺釘， 1210、 端面盲孔， 1220、 底部盲孔。
【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所示为本发明所示的液晶显示装置的背光模组的背框、 灯条以及安 装支架的结构筒图， 如图中所示， 背光模组包括背框 600、 灯条 110以及安装支 架 120; 其中， 背光模组的灯条 110可以通过螺釘、 粘接等方式固定在安装支架 120上， 而安装支架 120通过螺釘锁附到背框 600上。
实施例一
如图 2及图 3所示为本发明的较佳实施例， 如图中所示， 液晶显示装置的 背光模组的背框 600的边缘处分别设置有 3个侧壁 630,背框 600的一边缘处没 有设置有侧壁， 此处留出开口用于安装安装支架 120, 灯条 110通过螺釘或粘接 等方式固定在安装支架 120 上， 进而为液晶显示装置提供光源， 安装支架 120 通过螺釘安装到背框 600的开口处。 如图 4所示， 安装支架 120的底面开设有 底部盲孔 1220, 底部盲孔 1220为螺纹孔， 当然， 也可以是销釘孔或其它； 相应 的， 如图 3所示， 背框 600的底板边缘处开设有底板通孔 610与所述底部盲孔 1220, 安装支架 120通过锁紧螺釘 800从背框 600的背面固定到背框 600上， 从而为背光模组提供光源， 这样， 可以从液晶显示模组的背面对安装支架 120 进行拆除， 从而将灯条拆卸下来。
在本实施例中， 如图 4所示， 安装支架 120的两端端面还分别开设有端面 盲孔 1210, 相应的， 如图 3所示， 背框 600的侧壁 630上开设有侧壁通孔 620 与所述端面盲孔 1210相对应， 侧壁通孔 620也为螺纹孔， 安装支架 120的两端 通过阶梯螺釘 700固定在侧壁 630的上。 如图 5所示， 阶梯螺釘 700具有两个 不同直径分段， 所述两个不同直径分段分别为固定段 720和转轴段 710, 所述固 定段 720的直径大于所述转轴段 710的直径； 与所述阶梯螺釘 700相对应， 侧 壁通孔 1220的孔径大于所述端面盲孔 1210的孔径； 所述阶梯螺釘 700的转轴 段 710穿入所述端面盲孔 1210形成间隙配合， 所述固定段 720上设置有螺纹， 其通过螺纹锁紧固定在所述侧壁通孔上。 通过阶梯螺釘 700 的直径较小转轴段 710,使得在安装支架上的开孔得以减小，保证了安装支架锁附点的强度， 同时， 固定段由于直径较大， 保证了阶梯螺釘 700在背框 600的侧壁 630上的锁附强 度； 另外， 阶梯螺釘 700穿入所述端面盲孔 1210内与其形成间隙配合， 在拆除 锁定螺釘 800后， 如图 6及图 7所示， 安装支架可以以所述阶梯螺釘 700的转 轴段 710为转轴进行转动， 从而在维修时可将灯条 110向外翻转， 方便维修的 进行， 并且， 由于安装支架 120仍然连接在背光模组上， 所以不需要拆卸导线、 连接器等部件， 节约了维修时间的同时也减小了拆装过程中的损坏风险。
在本实施例中， 图 5所示的阶梯螺釘 700的转轴段 710表面没有螺纹， 并 且转轴段 710的直径小于端面盲孔 1210的孔径， 转轴段 710穿入所述端面盲孔 与其形成间隙配合。 转轴段不设置螺纹， 从而筒化加工工艺， 同时提高转轴段 的强度以及减小与盲孔恐怖的摩擦。
实施例二
与实施例一不同的是， 如图 8所示， 安装支架两端所用的端部螺釘 900的 固定段与转轴段直径相同， 其中， 固定段上设置有螺纹， 当然， 转轴段上也可 以设置有螺纹， 这样， 就可以使用普通的常规螺釘而不需要特别定制， 节约了 生产成本。 但是， 转轴段上若无螺纹， 可以提高螺釘的强度， 以及避免螺釘与 安装支架上的端面盲孔的摩擦。
当然， 在本发明中， 固定段上并非一定要设置螺纹， 只要固定段与背框的 侧壁上的侧壁通孔达到锁紧固定的效果即可。
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： 背框、 灯条、 以及一用于固定所述灯条的安装支 架， 所述安装支架通过可拆卸的连接固定在所述背框上。
2、 如权利要求 1所述的一种背光模组， 其特征在于， 所述安装支架通过螺 釘固定在所述背框上。
3、 如权利要求 2所述的一种背光模组， 其特征在于， 所述螺釘包括锁定螺 釘， 所述锁定螺釘从背框的背面将所述安装支架的底部锁附到背框上。
4、 如权利要求 2所述的一种背光模组， 其特征在于， 所述螺釘包括两个将 所述安装支架的两端锁附到所述背框的侧壁上的端部螺釘， 所述安装支架的两 端端面开设有端面盲孔， 所述背框的侧壁上对应于所述端面盲孔的位置设置有 侧壁通孔； 所述端部螺釘包括一段穿入所述端面盲孔内与其形成间隙配合的转 轴段， 以及一段锁紧固定在所述侧壁通孔上的固定段。
5、 如权利要求 4所述的一种背光模组， 其特征在于， 所述端部螺釘为具有 两个不同直径分段的阶梯螺釘， 所述两个不同直径分段分别为所述固定段和转 轴段， 所述固定段的直径大于所述转轴段的直径； 所述安装支架的两端端面设 置有用于安装所述阶梯螺釘的端面盲孔， 所述背框的侧壁上对应于所述盲孔的 位置开设有侧壁通孔， 所述侧壁通孔的孔径大于所述端面盲孔的孔径； 所述阶 梯螺釘的转轴段穿入所述盲孔形成间隙配合， 所述固定段锁紧固定在所述侧壁 通孔上。
6、 如权利要求 4或 5所述的一种背光模组， 其特征在于， 所述安装支架的 两端端面上的端面盲孔设置在所述安装支架两端端面的下侧或上侧， 所述侧壁 通孔对应于所述端面盲孔的位置设置在所述背框的侧壁上， 所述端部螺釘穿过 所述侧壁通孔以及所述端面盲孔并锁紧在所述侧壁通孔上。
7、 如权利要求 6所述的一种背光模组， 其特征在于， 所述固定段上设置有 螺纹， 所述端部螺釘的固定段与所述侧壁通孔通过螺纹连接锁紧。
8、如权利要求 6所述的一种背光模组， 其特征在于， 所述转轴段上无螺纹， 所述转轴段的直径小于所述端面盲孔的孔径， 所述转轴段穿入所述端面盲孔与 其形成间隙配合。
9、 如权利要求 1所述的一种背光模组， 其特征在于， 所述灯条直接粘贴在 所述安装支架上。
10、 一种液晶显示装置， 其特征在于， 包括背光模组， 所述背光模组包括 背框、 灯条以及一用于固定所述灯条的安装支架， 所述安装支架通过可拆卸的 连接固定在所述背框上。
11、 如权利要求 10所述的一种液晶显示装置， 其特征在于， 所述安装支架 通过螺釘固定在所述背框上。
12、 如权利要求 11所述的一种液晶显示装置， 其特征在于， 所述螺釘包括 锁定螺釘， 所述锁定螺釘从背框的背面将所述安装支架的底部锁附到背框上。
13、 如权利要求 11所述的一种液晶显示装置， 其特征在于， 所述螺釘包括 两个将所述安装支架的两端锁附到所述背框的侧壁上的端部螺釘， 所述安装支 架的两端端面开设有端面盲孔， 所述背框的侧壁上对应于所述端面盲孔的位置 设置有侧壁通孔； 所述端部螺釘包括一段穿入所述端面盲孔内与其形成间隙配 合的转轴段， 以及一段锁紧固定在所述侧壁通孔上的固定段。
14、 如权利要求 13所述的一种液晶显示装置， 其特征在于， 所述安装支架 的两端端面上的端面盲孔设置在所述安装支架两端端面的下侧或上侧， 所述侧 壁通孔对应于所述端面盲孔的位置设置在所述背框的侧壁上， 所述端部螺釘穿 过所述侧壁通孔以及所述端面盲孔并锁紧在所述侧壁通孔上。
15、 如权利要求 13所述的一种液晶显示装置， 其特征在于， 所述端部螺釘 为具有两个不同直径分段的阶梯螺釘， 所述两个不同直径分段分别为所述固定 段和转轴段， 所述固定段的直径大于所述转轴段的直径； 所述安装支架的两端 端面设置有用于安装所述阶梯螺釘的端面盲孔， 所述背框的侧壁上对应于所述 盲孔的位置开设有侧壁通孔， 所述侧壁通孔的孔径大于所述端面盲孔的孔径； 所述阶梯螺釘的转轴段穿入所述盲孔形成间隙配合， 所述固定段锁紧固定在所 述侧壁通孔上。
16、 如权利要求 15所述的一种液晶显示装置， 其特征在于， 所述安装支架 的两端端面上的端面盲孔设置在所述安装支架两端端面的下侧或上侧， 所述侧 壁通孔对应于所述端面盲孔的位置设置在所述背框的侧壁上， 所述端部螺釘穿 过所述侧壁通孔以及所述端面盲孔并锁紧在所述侧壁通孔上。
17、 如权利要求 16所述的一种液晶显示装置， 其特征在于， 所述固定段上 设置有螺纹， 所述端部螺釘的固定段与所述侧壁通孔通过螺纹连接锁紧。
18、 如权利要求 16所述的一种液晶显示装置， 其特征在于， 所述转轴段上 无螺纹， 所述转轴段的直径小于所述端面盲孔的孔径， 所述转轴段穿入所述端 面盲孔与其形成间隙配合。
19、 如权利要求 1 所述的一种液晶显示装置， 其特征在于， 所述灯条直接 粘贴在所述安装支架上。
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