WO2019080327A1 - 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

Info

Publication number
WO2019080327A1
WO2019080327A1 PCT/CN2017/117311 CN2017117311W WO2019080327A1 WO 2019080327 A1 WO2019080327 A1 WO 2019080327A1 CN 2017117311 W CN2017117311 W CN 2017117311W WO 2019080327 A1 WO2019080327 A1 WO 2019080327A1
Authority
WO
WIPO (PCT)
Prior art keywords
backlight module
heat dissipation
dissipation body
light source
sidewall
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2017/117311
Other languages
English (en)
French (fr)
Inventor
梁硕珍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
Original Assignee
HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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.)
Filing date
Publication date
Application filed by HKC Co Ltd, Chongqing HKC Optoelectronics Technology Co Ltd filed Critical HKC Co Ltd
Priority to US16/758,529 priority Critical patent/US10969538B2/en
Publication of WO2019080327A1 publication Critical patent/WO2019080327A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • G02B6/0085Means for removing heat created by the light source from 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
    • 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
    • G02F1/133628Illuminating devices with cooling means
    • 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
    • G02B6/0066Light 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
    • G02B6/0068Arrangements of plural sources, e.g. multi-colour light sources
    • 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
    • G02B6/009Positioning aspects of the light source 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
    • G02F1/133615Edge-illuminating devices, i.e. illuminating from the side

Definitions

  • the present application relates to the field of display technologies, and in particular, to a backlight module and a liquid crystal display device.
  • the backlight module generally includes an optical film, a light guide plate, an LED light bar, an aluminum extrusion, a back plate, and the like.
  • the aluminum is extruded on the inner side of the side wall of the backing plate and is in contact with the back surface of the LED light bar for assisting heat dissipation of the LED light bar.
  • the present application provides a backlight module and a liquid crystal display device to improve the efficiency of repairing or replacing a light source, and reduce the probability of damage to other components during maintenance or replacement of the light source.
  • the present application provides a backlight module, including:
  • the back plate includes at least one side wall, and the side wall of the back plate is provided with a through hole portion;
  • the heat dissipation body is detachably mounted on an outer side of the side wall of the backboard and covers the through hole portion; the light source is received in the through hole portion.
  • the heat dissipation body is provided with a groove, and the groove is used for placing the Said light source.
  • a plastic frame is further included; a through hole is formed in a sidewall of the rubber frame opposite to the heat dissipation body, and the size of the through hole is not less than the heat dissipation body size of.
  • the light emitting side of the light source is at least flush with the edge of the through hole portion.
  • one end portion of the heat dissipation body is flush with the bottom of the back plate.
  • the heat dissipation body is mounted on the outer side of the side wall of the backboard by a snap fit.
  • a card slot is disposed on a sidewall of the backboard, and a sidewall of the recess is engaged in the card slot to detachably mount the heat dissipation body Outside the side wall of the backing plate.
  • the heat dissipation body includes an aluminum extruded back plate body.
  • the present application further provides a backlight module, including:
  • the heat dissipation body, the heat dissipation body is provided with a groove
  • the back plate includes at least one side wall, and the side wall of the back plate is provided with a through hole portion and a card slot;
  • a sidewall of the groove is engaged in the card slot to detachably mount the heat dissipation body on an outer side of a sidewall of the backboard, and the heat dissipation body covers the through hole
  • the groove is configured to place the light source, and the light source is received in the through hole portion; the plurality of ends of the heat dissipation body are flush with the edge of the side wall of the back plate.
  • the present application further provides a liquid crystal display device, including:
  • a display screen located on a light exit side of the backlight module
  • the backlight module adopts any backlight module provided by the present application.
  • the present application provides a backlight module and a liquid crystal display device.
  • the backlight module is detachably mounted on the outer side of the side wall of the back plate and covers the through hole portion of the side wall of the back plate, and the light source is received in the through hole portion, so that when the light source is damaged,
  • the heat-dissipating body and the light source can be taken out from the backlight module without removing the display, the optical film, etc., thereby reducing the operation steps in the process of repairing or replacing the light source, reducing the difficulty of repairing or replacing the light source, and improving the operation.
  • Efficiency of repairing or replacing light sources, peer It can also avoid damage to other components such as display screens, optical diaphragms, etc. during this process, and reduce the chance of damage to other components.
  • FIG. 1 is a schematic structural view of a liquid crystal display device according to an embodiment of the present application.
  • FIG. 2 is a schematic cross-sectional view taken along line A-A of the liquid crystal display device shown in FIG. 1;
  • FIG. 3 is a schematic structural view of a back plate in the liquid crystal display device shown in FIG. 2;
  • FIG. 4 is a schematic cross-sectional view showing another liquid crystal display device shown in FIG. 1 along the A-A direction; [0037] FIG.
  • FIG. 5 is an enlarged view of a mark B in the liquid crystal display device shown in FIG. 2;
  • FIG. 6 to FIG. 8 are enlarged views of another structure at the mark B in the liquid crystal display device shown in FIG. 2;
  • FIG. 9 is a schematic structural view of a plastic frame in the liquid crystal display device shown in FIG. 2;
  • FIG. 10 is another schematic structural view of a plastic frame in the liquid crystal display device shown in FIG. 2.
  • FIGS. 1 through 10 structures having similar or identical structures are denoted by the same reference numerals.
  • FIG. 1 is a schematic structural view of a liquid crystal display device according to an embodiment of the present invention
  • FIG. 2 is a cross-sectional view of the liquid crystal display device of FIG. It should be noted that Figure 2 only shows the liquid crystal display. A portion of the cross-sectional view of the device 100 along the AA direction will be readily apparent to those skilled in the art from FIG. 2 and prior art.
  • the liquid crystal display device 100 includes a display screen 110, a front case 120, and a backlight module.
  • the front case 120 is fastened to the backlight module, and the display screen 110 is located between the front case 120 and the backlight module.
  • the display screen 110 is located on the light exiting side of the backlight module.
  • the display screen 110 can be, for example, a liquid crystal display.
  • the backlight module includes a heat dissipation body 131, a light source 132, a back plate 133, a light guide plate 135, and an optical film 136.
  • the specific structure of the backlight module in this embodiment will be described in detail below with reference to the accompanying drawings. It should be noted that the components included in the backlight module are not limited to the components shown in FIG. 2, and may also include components not shown in FIG. 2, and are not specifically limited herein.
  • the backing plate 133 includes at least one side wall 1331 and a bottom portion 1332.
  • the side wall 1331 extends from the edge of the bottom portion 1332 toward the display screen 110.
  • FIG. 3 is a schematic structural view of a back plate in the liquid crystal display device shown in FIG. 2.
  • the number of the side walls 1331 of the back plate 133 is four, and the four side walls 1331 respectively extend from the four edges of the bottom portion 1332 toward the display screen 110, and the four side walls 1331 and the bottom portion 1332 form a storage space to Each device in the backlight module is housed in the space.
  • the number of the side walls 1331 of the back plate 133 may be less or more, and the shapes of the side walls 1331 and the bottom portion 1332 of the back plate 133 are not limited to FIG.
  • the shape shown, the structure of the backing plate 133 shown in Fig. 3 serves only as an exemplary illustration and cannot be used to limit the structure of the backing plate 13 3 in the present application.
  • a through hole portion 1333 is further disposed on the side wall 1331 of the back plate 133. As shown in Figure 2 and Figure 3. In the back plate 133 shown in Fig. 3, a through hole portion 1333 is formed in each of the two opposite side walls 1331. Each of the through hole portions 1333 corresponds to one light source 132. That is to say, in the backlight module, the number of the light sources 132 is two, which are respectively disposed on both sides of the backlight module.
  • FIG. 4 is another schematic cross-sectional view of the liquid crystal display device shown in FIG. 1 along the AA direction.
  • Backplane 133 The two opposite side walls 1331 are respectively provided with two through hole portions 1333, that is, the number of the through hole portions 1333 on the back plate 133 is four, and accordingly, the number of the light sources 132 is four. , corresponding to the four through hole portions 13 33 respectively.
  • the shape of the through hole portion 1333 may be set according to the shape of the light source 132.
  • the light source 1 32 is an elongated LED light bar, and therefore, the shape of the through hole portion 1333 shown in FIG. 3 is Long strips.
  • the shape of the through hole portion 1333 may be other shapes, which is not specifically limited herein.
  • the through hole portion 1333 is for accommodating the light source 132.
  • FIG. 5 is an enlarged view of the mark B in the liquid crystal display device shown in FIG. 2.
  • the width of the through hole portion 1333 is larger than the width of the light source 132, that is, the width of the through hole portion 1333 is larger than the width of the light source 132 in the vertical direction of the paper plane, so that the light source 132 is facilitated from the through hole portion 1333.
  • the depth of the through hole portion 1333 is not greater than the thickness of the light source 132, that is, the depth of the through hole portion 1333 is not greater than the light source 132 in the horizontal direction of the paper plane. thickness of.
  • the light emitting side of the light source 132 is flush with the edge of the through hole portion 1333 or protrudes from the edge of the through hole portion 1333, so that the light emitted from the light source 132 can be transmitted through the light guide plate 135 as much as possible. Improve the utilization of light.
  • the depth of the through hole portion 1333 may be greater than the thickness of the light source 132, that is, the light exiting side of the light source 132 is completely received in the through hole portion 1333.
  • the light guide plate 135 is located on the bottom portion 1332 of the back plate 133.
  • the light incident side of the light guide plate 135 corresponds to the light source 132.
  • the light guide plate 135 is used to conduct the light emitted by the light source 132 to the light guide plate 135.
  • Light exit side
  • the optical film 136 is disposed on the light exiting side of the light guide plate 135, and the edge of the optical film 136 abuts against the side wall 1331 of the back plate 133.
  • the optical film 136 performs uniform light treatment on the light emitted from the light-emitting side of the light guide plate 135, so that the light is uniformly emitted from the optical film 136 and then irradiated onto the display screen 110.
  • the optical film 136 includes a diffusion film, a brightness enhancement film, and a reflective film.
  • the diffusion film, the brightness enhancement film, and the reflection film are sequentially stacked in the direction of the light guide plate 135 to the display screen 110.
  • the diffusion film is mainly for homogenizing the light emitted from the light guide plate 135 so that the light distribution incident on the optical film 136 is more uniform.
  • the brightness enhancement film may be a prism film, and the prism film may select the incident light to pass the light that meets the convergence angle, and the unqualified light is reflected back to the light guide plate 135. It is again scattered in the light guide plate 135 and then returned to the prism film until it meets the conditional emission, which serves to enhance the brightness.
  • the light source 132 is disposed on the heat dissipation body 131.
  • the light source 132 is connected to the heat dissipation body 131 through a heat conductive strip, so that heat generated by the light source 132 can be dissipated through the heat conductive strip and the heat dissipating body 131.
  • the heat dissipation body 131 is detachably mounted on the outer side of the side wall 1331 of the back plate 133 and covers the through hole portion 1333 of the side wall 1331. It can be understood that the xenon light source 132 will be housed in the through hole portion 1333.
  • one end portion of the heat dissipation body 131 is flush with the bottom portion 1332 of the back plate 133.
  • Fig. 6 is an enlarged view showing another structure at the mark B in the liquid crystal display device shown in Fig. 2.
  • the respective ends of the heat dissipation body 131 are flush with the edges of the side walls 1331 of the back plate 1 33.
  • the heat dissipation body 131 completely covers the sidewall 1331 of the backplane 133, thereby increasing the heat dissipation area of the heat dissipation body 131, thereby accelerating the heat dissipation speed of the heat dissipation body 131.
  • the heat dissipation body 131 may be a flat structure as shown in FIG. 2 and FIG. 5, or may be a groove structure, for example, as shown in FIG. 7, FIG. 7 is a liquid crystal display shown in FIG. Another enlarged view of the structure at mark B in the device.
  • the heat dissipation body 131 is provided with a recess 1311 for placing the light source 132.
  • the structure of the heat dissipation body 131 is not limited to the structure shown in the embodiment, and may include other structures.
  • the heat dissipation body 131 is provided with a boss, and the light source 132 is mounted on the boss.
  • the boss and the light source 132 are housed in the through hole portion 1333.
  • the heat dissipation body 131 may be mounted on the outer side of the side wall 1331 of the back plate 133 by means of a thermal conductive strip or the like. Of course, it may be attached to the outer side of the side wall 1331 by bolts, snaps, or the like.
  • FIG. 8 is an enlarged view of another structure at the mark B in the liquid crystal display device shown in FIG. 2.
  • a card slot 1334 is further disposed on the side wall 1331 of the back plate 133.
  • the number of the card slots 1334 is two, and is provided on the upper and lower sides of the through hole portion 1333, respectively.
  • the shape of the card slot 1334 may be an elongated card slot.
  • the heat dissipation body 131 is an aluminum extruded back plate body. It can be understood that in other embodiments, the backplane body of other materials may also be used as long as the heat emitted by the light source 132 can be dissipated.
  • the backlight module in order to stably store the components in the backlight module in the backplane 133, the backlight module further includes a plastic frame 134.
  • the frame 134 is fastened to the back plate 133 to form a casing with the back plate 133, and a plurality of components are housed in the casing.
  • FIG. 9 is a schematic structural view of a plastic frame in the liquid crystal display device shown in FIG.
  • the frame 134 includes a top surface 1341 and four frame side walls 1342.
  • the top surface 1341 is provided with a mouth 1343 opposite to the display area of the liquid crystal display device 100, and light emitted from the light guide plate 135 can be incident on the display screen 110 through the port 1343.
  • the four plastic frame side walls 1342 extend from the top surface 1341 toward the bottom portion 1332 of the backing plate 133.
  • the four plastic frame side walls 1342 and the top surface 1341 form a lid.
  • the plastic frame side wall 1342 fastens the side wall 1331 of the back plate 133 to the inner side.
  • the two plastic frame sidewalls 1342 of the plastic frame 134 opposite to the heat dissipation body 131 are respectively provided with through holes 1340, and the size of the through holes 1340 is not less than the size of the heat dissipation body 131, so that After the light source 132 is repaired or replaced, the maintenance personnel can take out the heat dissipation body 131 and the light source 132 without removing the plastic frame.
  • parameters such as the shape, size, and position of the through hole 1340 in the plastic frame 134 can be set according to the parameters of the heat dissipation body 131.
  • the connection in the plastic frame 134 The shape of the hole 1340 can also be the case shown in FIG.
  • the liquid crystal display device provided in this embodiment adopts the backlight module provided by the present application.
  • the backlight module is detachably mounted on the outer side of the side wall 1331 of the back plate 133 by disposing the heat dissipation body m on which the light source 132 is mounted. And covering the through hole portion 1333 of the side wall 1331.
  • the maintenance personnel can remove the heat-dissipating body 131 and the light source 132 from the backlight module without removing the display 110, the optical film 136, etc., thereby reducing the process of repairing or replacing the light source 132.
  • the operation steps in the operation reduce the difficulty of repairing or replacing the light source 132, improve the efficiency of repairing or replacing the light source 132, and also prevent damage to the display 110, the optical film 136, and the like in the process. Reduce the chance of damage to other components.

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

Abstract

一种背光模组及液晶显示装置(100),背光模组包括散热本体(131)、光源(132)和背板(133);其中,背板(133)的侧壁(1331)上设有通孔部(1333),散热本体(131)可拆卸地安装在背板(133)的侧壁(1331)的外侧,且覆盖在通孔部(1333)上,同时,光源(132)收纳于通孔部(1333)内。

Description

一种背光模组及液晶显示装置 技术领域
[0001] 本申请涉及显示器技术领域, 尤其涉及一种背光模组及液晶显示装置。
[0002]
[0003] 背景技术
[0004] 背光模组一般包括光学膜片、 导光板、 LED灯条、 铝挤、 背板等部件。 其中, 该铝挤设置在背板侧壁的内侧, 与 LED灯条的背面相接触, 用于辅助该 LED灯条 散热。
[0005] 然而, 采用现有的背光模组的液晶显示装置中, 一旦发生 LED灯条坏损等需要 维修或更换 LED灯条吋, 往往需要依次拆除液晶显示装置的前壳、 显示屏、 背光 模组的光学膜片等部件后, 才能将铝挤和 LED灯条取出。 在维修或更换完 LED灯 条后, 重新将铝挤和 LED灯条安装在背板侧壁的内侧, 再依次放回光学膜片、 显 示屏、 前壳等部件。 整个维修或更换 LED灯条过程操作步骤繁多, 降低维修或更 换 LED灯条的效率, 同吋, 也很容易造成显示屏、 光学膜片等其他部件坏损, 增 加显示屏、 光学膜片等其他部件出现损坏的几率。
[0006]
[0007] 发明内容
[0008] 本申请提供了一种背光模组及液晶显示装置, 以提高维修或更换光源的效率, 减小在维修或更换光源过程中其他部件发生坏损的几率。
[0009] 本申请提供了一种背光模组, 其包括:
[0010] 散热本体;
[0011] 光源, 设置在所述散热本体上;
[0012] 背板, 至少包括一个侧壁, 所述背板的侧壁上设有通孔部;
[0013] 其中, 所述散热本体可拆卸地安装在所述背板的侧壁的外侧, 且覆盖在所述通 孔部上; 所述光源收纳于所述通孔部内。
[0014] 在本申请提供的背光模组中, 所述散热本体上设有凹槽, 所述凹槽用于放置所 述光源。
[0015] 在本申请提供的背光模组中, 还包括胶框; 所述胶框中与所述散热本体相对的 侧壁上设有通孔, 所述通孔的尺寸不小于所述散热本体的尺寸。
[0016] 在本申请提供的背光模组中, 当所述光源收纳于所述通孔部吋, 所述光源的发 光侧至少与所述通孔部的边缘齐平。
[0017] 在本申请提供的背光模组中, 所述散热本体的一端部与所述背板的底部齐平。
[0018] 在本申请提供的背光模组中, 所述散热本体通过卡合方式安装在所述背板的侧 壁的外侧。
[0019] 在本申请提供的背光模组中, 所述背板的侧壁上设有卡槽, 所述凹槽的侧壁卡 合在所述卡槽中以将所述散热本体可拆卸安装在所述背板的侧壁的外侧。
[0020] 在本申请提供的背光模组中, 所述散热本体包括铝挤型背板本体。
[0021] 本申请还提供一种背光模组, 其包括:
[0022] 散热本体, 所述散热本体上设有凹槽;
[0023] 光源, 设置在所述散热本体上;
[0024] 背板, 至少包括一个侧壁, 所述背板的侧壁上设有通孔部和卡槽;
[0025] 其中, 所述凹槽的侧壁卡合在所述卡槽中以将所述散热本体可拆卸安装在所述 背板的侧壁的外侧, 且所述散热本体覆盖在所述通孔部上; 所述凹槽用于放置 所述光源, 且所述光源收纳于所述通孔部内; 所述散热本体的多个端部与所述 背板的侧壁的边缘均齐平。
[0026] 本申请又提供一种液晶显示装置, 其包括:
[0027] 背光模组;
[0028] 显示屏, 位于所述背光模组的出光侧;
[0029] 其中, 所述背光模组采用本申请提供的任意一种背光模组。
[0030] 本申请提供一种背光模组及液晶显示装置。 该背光模组通过将散热本体可拆卸 安装在背板的侧壁的外侧, 且覆盖在背板的侧壁的通孔部上, 光源收纳于该通 孔部, 这样当光源发生坏损吋, 不需要拆除显示屏、 光学膜片等部件, 就可以 将散热本体和光源从背光模组中取出, 减少了维修或更换光源过程中的操作步 骤, 降低了维修或更换光源的操作难度, 提高了维修或更换光源的效率, 同吋 也可以避免在此过程中对显示屏、 光学膜片等其他部件造成损坏, 降低其他部 件发生损坏的几率。
[0031]
[0032] 附图说明
[0033] 为了更清楚地说明本申请实施例技术方案, 下面将对实施例描述中所需要使用 的附图作简单地介绍, 显而易见地, 下面描述中的附图是本申请的一些实施例 , 对于本领域普通技术人员来讲, 在不付出创造性劳动的前提下, 还可以根据 这些附图获得其他的附图。
[0034] 图 1为本申请实施例中液晶显示装置的结构示意图;
[0035] 图 2为图 1所示液晶显示装置中沿 A-A方向的截面示意图;
[0036] 图 3为图 2所示的液晶显示装置中背板的结构示意图;
[0037] 图 4为图 1所示的液晶显示装置中沿 A-A方向的另一截面示意图;
[0038] 图 5为图 2所示液晶显示装置中标记 B处的放大图;
[0039] 图 6至图 8均为图 2所示液晶显示装置中标记 B处的另一结构放大图;
[0040] 图 9为图 2所示液晶显示装置中胶框的结构示意图;
[0041] 图 10为图 2所示液晶显示装置中胶框的另一结构示意图。
[0042]
[0043] 具体实施方式
[0044] 下面将结合本申请实施例中的附图, 对本申请实施例中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例是本申请一部分实施例, 而不是全部的实 施例。 基于本申请中的实施例, 本领域普通技术人员在没有做出创造性劳动前 提下所获得的所有其他实施例, 都属于本申请保护的范围。
[0045] 本申请所提到的方向用语, 例如 「上」 、 「下」 、 「前」 、 「后」 、 「左」 、
Γ右」 、 「内」 、 「外」 、 「侧面」 等, 仅是参考附加图式的方向。 因此, 使 用的方向用语是用以说明及理解本申请, 而非用以限制本申请。
[0046] 在图 1至图 10中, 结构相似或相同的结构是以相同标号表示。
[0047] 请参阅图 1和图 2, 图 1为本实施例中液晶显示装置的结构示意图, 图 2为图 1所 示液晶显示装置沿 A-A方向的截面示意图。 需要说明的是, 图 2仅给出了液晶显 示装置 100沿 A-A方向截面图的一部分, 本领域的技术人员根据图 2以及现有知识 很容易得知截面图的另一部分的结构。
[0048] 该液晶显示装置 100包括显示屏 110、 前壳 120和背光模组。 前壳 120扣合在背光 模组上吋, 该显示屏 110位于前壳 120与背光模组之间。 具体地, 该显示屏 110位 于背光模组的出光侧。 另外, 在本实施例中, 该显示屏 110可例如为液晶显示屏
[0049] 如图 2所示, 该背光模组包括散热本体 131、 光源 132、 背板 133、 导光板 135和 光学膜片 136。 下面将结合附图对本实施例中背光模组的具体结构进行详细地说 明。 需要说明的是, 背光模组所包括的部件不局限于图 2所示的部件, 还可以包 括图 2未示出的部件, 在此不做具体限制。
[0050] 该背板 133包括至少一个侧壁 1331和底部 1332。 该侧壁 1331从底部 1332的边缘 向着显示屏 110的方向延伸出来。
[0051] 为了可以将背光模组中的多个器件收纳形成整体, 在一实施例中, 如图 3所示 , 图 3为图 2所示的液晶显示装置中背板的结构示意图。 背板 133的侧壁 1331的个 数为四个, 四个侧壁 1331分别从底部 1332的四个边缘向着显示屏 110的方向延伸 出来, 四个侧壁 1331和底部 1332形成收纳空间, 以将背光模组中的各个器件收 纳于该空间中。
[0052] 可以理解的是, 在其他实施例中, 背板 133的侧壁 1331的个数可以更少或更多 , 且背板 133的侧壁 1331以及底部 1332的形状也不局限于图 3所示的形状, 图 3所 示的背板 133的结构仅仅起到示范性说明的作用, 不能用于限制本申请中背板 13 3的结构。
[0053] 该背板 133的侧壁 1331上还设有通孔部 1333。 如图 2和图 3所示。 在图 3所示的背 板 133中, 两个相对的侧壁 1331上各设有一个通孔部 1333。 每个通孔部 1333与一 个光源 132对应。 也就是说, 在背光模组中光源 132的个数为两个, 分别设置在 背光模组的两侧上。
[0054] 可以理解的是, 在其他实施例中, 当光源 132的个数为一个或更多个吋, 通孔 部 1333的个数以及位置可以根据光源 132的个数以及位置进行调整。 譬如, 如图 4所示, 图 4为图 1所示的液晶显示装置中沿 A-A方向的另一截面示意图。 背板 133 的两个相对的侧壁 1331上各设有两个通孔部 1333, 也就是说, 背板 133上的通孔 部 1333的个数总计四个, 相应地, 光源 132的个数为四个, 分别与四个通孔部 13 33对应。
[0055] 另外, 通孔部 1333的形状可以根据光源 132的形状进行设置, 一般来说, 光源 1 32为长条形的 LED灯条, 因此, 图 3所示的通孔部 1333的形状为长条形。 在其他 实施例中, 通孔部 1333的形状还可以为其他形状, 在此不做具体限制。
[0056] 该通孔部 1333用于收纳光源 132。 请参阅图 5所示, 图 5为图 2所示液晶显示装置 中标记 B处的放大图。 在图 5中, 通孔部 1333的宽度比光源 132的宽度大, 即在纸 平面竖直方向上, 通孔部 1333的宽度比光源 132的宽度大, 这样便于将光源 132 从通孔部 1333中取出。
[0057] 另外, 为了避免光源 132发出的光被通孔部 1333遮挡, 通孔部 1333的深度不大 于光源 132的厚度, 即在纸平面水平方向上, 通孔部 1333的深度不大于光源 132 的厚度。 换句话说, 光源 132的发光侧与通孔部 1333的边缘齐平, 或者从通孔部 1333的边缘中突出来, 这样可以使得光源 132发射的光线尽可能地通过导光板 13 5传输出去, 提高光线的利用率。
[0058] 当然, 在其他实施例中, 通孔部 1333的深度也可以大于光源 132的厚度, 即光 源 132的出光侧完全收纳于通孔部 1333中。
[0059] 请参阅图 2所示, 导光板 135位于背板 133的底部 1332上, 导光板 135的入光侧与 光源 132对应, 导光板 135用于将光源 132发射的光线传导至导光板 135的出光侧
[0060] 光学膜片 136设置在导光板 135的出光侧上, 且光学膜片 136的边缘与背板 133的 侧壁 1331抵顶。 该光学膜片 136对导光板 135的出光侧发出的光线进行匀光等处 理, 使得光线从光学膜片 136发出后均匀地照射在显示屏 110上。
[0061] 在一实施例中, 该光学膜片 136包括扩散膜、 增亮膜和反射膜。 其中, 该扩散 膜、 增亮膜和反射膜是沿着导光板 135至显示屏 110的方向依次层叠设置。 该扩 散膜主要是对导光板 135出射的光进行匀光处理, 以使得入射至光学膜片 136的 光分布更加均匀。 该增亮膜可以为棱镜膜, 该棱镜膜可以对入射的光线进行选 择, 让符合汇聚光角度的光线通过, 而不符合条件的光线被反射回导光板 135, 重新在导光板 135中散射后再回到棱镜膜, 直到符合条件出射为止, 其起到增强 亮度的作用。
[0062] 光源 132设置在散热本体 131上。 该光源 132通过导热胶条连接在散热本体 131上 , 这样光源 132产生的热量可以通过导热胶条和散热本体 131散发出去。
[0063] 散热本体 131可拆卸地安装在背板 133的侧壁 1331的外侧, 且覆盖在侧壁 1331的 通孔部 1333上。 可以理解的是, 此吋光源 132将收纳于通孔部 1333内。
[0064] 在一实施例中, 如图 2和图 5所示, 散热本体 131的一端部与背板 133的底部 1332 齐平。 进一步地, 如图 6所示, 图 6为图 2所示液晶显示装置中标记 B处的另一结 构放大图。 为了加快散热本体 131的散热速度, 散热本体 131的各个端部与背板 1 33的侧壁 1331的边缘齐平。 也就是说, 散热本体 131将背板 133的侧壁 1331全部 覆盖住, 这样增加散热本体 131的散热面积, 进而加快散热本体 131的散热速度
[0065] 在一实施例中, 散热本体 131可以为如图 2和图 5所示的平板结构, 也可以为凹 槽结构, 譬如, 如图 7所示, 图 7为图 2所示液晶显示装置中标记 B处的另一结构 放大图。 散热本体 131上设有凹槽 1311, 该凹槽 1311用于放置光源 132。
[0066] 可以理解的是, 散热本体 131的结构不局限于本实施例所陈列出来的结构, 还 可以包括其他结构, 譬如, 散热本体 131上设有凸台, 光源 132安装在凸台上, 当散热本体 131安装在背板 133的侧壁 1331的外侧吋, 凸台和光源 132收纳于通孔 部 1333内。
[0067] 在一实施例中, 散热本体 131可以通过导热胶条等胶合方式安装在背板 133的侧 壁 1331的外侧。 当然, 也可以通过螺栓、 卡合等方式安装在侧壁 1331的外侧。
[0068] 譬如, 如图 8所示, 图 8为图 2所示液晶显示装置中标记 B处的另一结构放大图。
需要说明的是, 为了更加清晰地了解散热本体 131与背板 133的侧壁 1331的固定 方式, 图 8中将散热本体 131以及背板 133的侧壁 1331进行了拆解。 在图 8中, 背 板 133的侧壁 1331上还设有卡槽 1334。 卡槽 1334的个数为两个, 分别设置在通孔 部 1333的上下两侧。 该卡槽 1334的形状可以为长条形的卡槽。 凹槽 1311的侧壁 1 312卡合在卡槽 1334中, 从而将散热本体 131可拆卸安装在背板 133的侧壁 1331的 外侧。 [0069] 另外, 在本实施例中, 散热本体 131为铝挤型背板本体。 可以理解的是, 在其 他实施例中, 也可以采用其他材质的背板本体, 只要可以将光源 132发出的热量 散发出去即可。
[0070] 在一实施例中, 如图 2所示, 为了可以将背光模组中各个部件稳定地收纳于背 板 133中, 背光模组还包括胶框 134。 该胶框 134扣合在背板 133上, 以与背板 133 形成盒体, 将多个部件收纳于盒体中。
[0071] 请参阅图 9所示, 图 9为图 2所示液晶显示装置中胶框的结构示意图。 该胶框 134 包括顶面 1341和四个胶框侧壁 1342。 该顶面 1341上设有幵口 1343, 该幵口 1343 与液晶显示装置 100的显示区相对, 导光板 135发出的光可以通过该幵口 1343入 射至显示屏 110。
[0072] 该四个胶框侧壁 1342从顶面 1341向着背板 133的底部 1332的方向延伸出来。 该 四个胶框侧壁 1342与顶面 1341形成盒盖。 当胶框 134扣合在背板 133上吋, 胶框 侧壁 1342将背板 133的侧壁 1331扣合在内侧。
[0073] 在一实施例中, 胶框 134中与散热本体 131相对的两个胶框侧壁 1342上各设有通 孔 1340, 该通孔 1340的尺寸不小于散热本体 131的尺寸, 这样在维修或更换光源 132吋, 维修人员可以不需要拆除胶框就可以将散热本体 131及光源 132拿出。
[0074] 可以理解的是, 胶框 134中的通孔 1340的形状、 大小以及位置等参数可以根据 散热本体 131的参数进行设置。 譬如, 当散热本体 131的端部未与背板 133的侧壁 1331的边缘齐平吋, 即散热本体 131位于背板 133的侧壁 1331外侧的中部区域上 , ¾ 么胶框 134中的通孔 1340的形状还可以为图 10所示的情况。
[0075] 本实施例提供的液晶显示装置, 采用本申请提供的背光模组, 该背光模组通过 将安装有光源 132的散热本体 m可拆卸地安装在背板 133的侧壁 1331的外侧, 且 覆盖在侧壁 1331的通孔部 1333上。 当光源 132需要进行维修或更换吋, 维修人员 不需要拆除显示屏 110、 光学膜片 136等部件, 就可以将散热本体 131和光源 132 从背光模组中取出, 减少了维修或更换光源 132过程中的操作步骤, 降低了维修 或更换光源 132的操作难度, 提高了维修或更换光源 132的效率, 同吋也可以避 免在此过程中对显示屏 110、 光学膜片 136等其他部件造成损坏, 降低其他部件 发生损坏的几率。 [0076]
[0077] 以上所述, 仅为本申请的具体实施方式, 但本申请的保护范围并不局限于此, 任何熟悉本技术领域的技术人员在本申请揭露的技术范围内, 可轻易想到各种 等效的修改或替换, 这些修改或替换都应涵盖在本申请的保护范围之内。 因此 , 本申请的保护范围应以权利要求的保护范围为准。
技术问题
问题的解决方案
发明的有益效果

Claims

权利要求书
一种背光模组, 包括:
散热本体;
光源, 设置在所述散热本体上;
背板, 至少包括一个侧壁, 所述背板的侧壁上设有通孔部; 其中, 所述散热本体可拆卸地安装在所述背板的侧壁的外侧, 且覆盖 在所述通孔部上; 所述光源收纳于所述通孔部内。
根据权利要求 1所述的背光模组, 其中, 所述散热本体上设有凹槽, 所述凹槽用于放置所述光源。
根据权利要求 1所述的背光模组, 其中, 还包括胶框; 所述胶框中与 所述散热本体相对的侧壁上设有通孔, 所述通孔的尺寸不小于所述散 热本体的尺寸。
根据权利要求 1所述的背光模组, 其中, 当所述光源收纳于所述通孔 部吋, 所述光源的发光侧至少与所述通孔部的边缘齐平。
根据权利要求 1所述的背光模组, 其中, 所述散热本体的一端部与所 述背板的底部齐平。
根据权利要求 2所述的背光模组, 其中, 所述散热本体通过卡合方式 安装在所述背板的侧壁的外侧。
根据权利要求 6所述的背光模组, 其中, 所述背板的侧壁上设有卡槽 , 所述凹槽的侧壁卡合在所述卡槽中以将所述散热本体可拆卸安装在 所述背板的侧壁的外侧。
根据权利要求 1所述的背光模组, 其中, 所述散热本体包括铝挤型背 板本体。
根据权利要求 1所述的背光模组, 其中, 所述背板包括两个相对设置 的侧壁; 所述背板的两个相对设置的侧壁上各设有两个所述通孔部。 根据权利要求 9所述的背光模组, 其中, 所述光源的个数为四个。 根据权利要求 1所述的背光模组, 其中, 所述散热本体通过胶合方式 安装在所述背板的侧壁的外侧。 [权利要求 12] 根据权利要求 1所述的背光模组, 其中, 所述散热本体上设有凸台, 所述光源安装在所述凸台上; 当所述散热本体安装在所述背板的侧壁 的外侧吋, 所述凸台和光源收纳于所述通孔部内。
[权利要求 13] 根据权利要求 1所述的背光模组, 其中, 所述光源包括 LED灯条。
[权利要求 14] 根据权利要求 1所述的背光模组, 其中, 所述通孔部的宽度大于所述 光源的宽度。
[权利要求 15] 一种背光模组, 包括:
散热本体, 所述散热本体上设有凹槽;
光源, 设置在所述散热本体上;
背板, 至少包括一个侧壁, 所述背板的侧壁上设有通孔部和卡槽; 其中, 所述凹槽的侧壁卡合在所述卡槽中以将所述散热本体可拆卸安 装在所述背板的侧壁的外侧, 且所述散热本体覆盖在所述通孔部上; 所述凹槽用于放置所述光源, 且所述光源收纳于所述通孔部内; 所述 散热本体的多个端部与所述背板的侧壁的边缘均齐平。
[权利要求 16] 根据权利要求 15所述的背光模组, 其中, 还包括胶框; 所述胶框中与 所述散热本体相对的侧壁上设有通孔, 所述通孔的尺寸不小于所述散 热本体的尺寸。
[权利要求 17] 根据权利要求 15所述的背光模组, 其中, 当所述光源收纳于所述通孔 部吋, 所述光源的发光侧至少与所述通孔部的边缘齐平。
[权利要求 18] 根据权利要求 15所述的背光模组, 其中, 所述散热本体包括铝挤型背 板本体。
[权利要求 19] 根据权利要求 15所述的背光模组, 其中, 所述光源包括 LED灯条。
[权利要求 20] 一种液晶显示装置, 包括:
背光模组;
显示屏, 位于所述背光模组的出光侧;
其中, 所述背光模组采用权利要求 1所述的一种背光模组。
PCT/CN2017/117311 2017-10-25 2017-12-20 一种背光模组及液晶显示装置 Ceased WO2019080327A1 (zh)

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