WO2017140053A1 - 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
WO2017140053A1
WO2017140053A1 PCT/CN2016/082306 CN2016082306W WO2017140053A1 WO 2017140053 A1 WO2017140053 A1 WO 2017140053A1 CN 2016082306 W CN2016082306 W CN 2016082306W WO 2017140053 A1 WO2017140053 A1 WO 2017140053A1
Authority
WO
WIPO (PCT)
Prior art keywords
reinforcing member
side wall
backlight module
reinforcing
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/CN2016/082306
Other languages
English (en)
French (fr)
Inventor
郭庆
谢晨
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.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star 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 Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US15/101,950 priority Critical patent/US20180046029A1/en
Publication of WO2017140053A1 publication Critical patent/WO2017140053A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G02F1/133—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
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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
    • 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
    • G02F1/133314—Back frames
    • 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
    • G02F1/133628—Illuminating devices with cooling means

Definitions

  • the present invention relates to the field of display, and in particular, to a backlight module and a liquid crystal display device.
  • Liquid crystal display devices are widely used in desktop computers, notebooks, personal digital assistants, mobile phones, televisions, etc. due to their low radiation, thin thickness and low power consumption. Since the liquid crystal display panel is a non-light-emitting display device, in order to achieve the display effect, the liquid crystal display panel needs to provide a light source device to realize a display function, for example, a backlight module, which is used for providing sufficient brightness for the liquid crystal display panel. A uniform surface light source.
  • the backlight module generally includes a back frame, a light source, a light guide plate and a plurality of optical films, and the light source, the light guide plate and the plurality of optical films are fixed to the back frame.
  • the light source, the light guide plate and the plurality of optical films are relatively fixed by the back frame.
  • the back frame is generally made of a plastic material.
  • the plastic material has a small anti-interference stiffness, and is susceptible to bending deformation during assembly, which affects assembly precision; in addition, the thermal conductivity of the plastic material is poor, plastic
  • the back frame of the material does not effectively dissipate the light source.
  • the technical problem to be solved by the present invention is to provide a backlight module and a liquid crystal display device having a back frame having high anti-interference rigidity and good thermal conductivity.
  • a technical solution adopted by the present invention is to provide a backlight module for providing a backlight for a display panel
  • the backlight module includes a back frame
  • the back frame includes a plastic frame and a reinforcing member, and the reinforcing member is
  • the rigidity is greater than the rigidity of the plastic frame
  • the plastic frame includes four side walls that are connected end to end, and the first side wall, the second side wall, the third side wall and the fourth side wall are sequentially, and the first side wall is adjacent to the backlight module.
  • the light source and the reinforcing member are disposed at least outside the inner side surface of the first side wall and outside the bottom surface of the connecting inner side surface to conduct heat of the light source to the outside of the backlight module through the reinforcing member, and the bottom surface is away from the surface of the display panel.
  • the reinforcing member is further disposed on the third side wall.
  • the reinforcing member comprises two in-line sub-reinforced sheets extending along the first side wall and the third side wall respectively.
  • the reinforcing member is further disposed on the second sidewall or the fourth sidewall.
  • the reinforcing member comprises three in-line sub-reinforced sheets; or the reinforcing sheet comprises a piece of L-shaped and a piece of in-line sub-reinforced sheet; or the reinforcing sheet has a dome shape.
  • the reinforcing member is further disposed on the second side wall and the fourth side wall, the reinforcing sheet comprises four in-line sub-reinforcing sheets; or the reinforcing member comprises two L-shaped sub-reinforcing sheets; or the reinforcing member comprises a piece The ridge-shaped sub-reinforced sheet and the one-piece sub-reinforced sheet; or the reinforcing member as a whole has a mouth-shaped shape matching the plastic frame.
  • the reinforcing member is further disposed on the outer surface of the first side wall, and the outer surface is disposed opposite to the inner surface.
  • the reinforcing member and the plastic frame are integrally formed.
  • the reinforcing member is made of metal.
  • a technical solution adopted by the present invention is to provide a liquid crystal display device including a backlight module and a display panel, and the backlight module includes a back frame, and the back frame includes a plastic frame and a reinforcing member.
  • the rigidity of the reinforcing member is greater than the rigidity of the plastic frame, and the plastic frame comprises four side walls that are connected end to end, and the first side wall, the second side wall, the third side wall and the fourth side wall are sequentially, and the first side wall is adjacent to the backlight.
  • the light source of the module is disposed at least outside the inner side surface of the first side wall and outside the bottom side of the inner side surface to conduct heat of the light source to the outside of the backlight module through the reinforcing member, and the bottom surface is away from the surface of the display panel.
  • the reinforcing member is further disposed on the third side wall.
  • the reinforcing member comprises two in-line sub-reinforced sheets extending along the first side wall and the third side wall respectively.
  • the reinforcing member is further disposed on the second sidewall or the fourth sidewall.
  • the reinforcing member comprises three in-line sub-reinforced sheets; or the reinforcing sheet comprises a piece of L-shaped and a piece of in-line sub-reinforced sheet; or the reinforcing sheet has a dome shape.
  • the reinforcing member is further disposed on the second side wall and the fourth side wall, the reinforcing sheet comprises four in-line sub-reinforcing sheets; or the reinforcing member comprises two L-shaped sub-reinforcing sheets; or the reinforcing member comprises a piece The ridge-shaped sub-reinforced sheet and the one-piece sub-reinforced sheet; or the reinforcing member as a whole has a mouth-shaped shape matching the plastic frame.
  • the reinforcing member is further disposed on the outer surface of the first side wall, and the outer surface is disposed opposite to the inner surface.
  • the reinforcing member and the plastic frame are integrally formed.
  • the reinforcing member is made of metal.
  • the back frame of the backlight module of the present invention comprises a plastic frame and a reinforcing member, and the reinforcing member is disposed at least outside the inner side surface of the first side wall and the outer side surface of the connecting inner side surface,
  • the heat of the light source is transmitted to the outside of the backlight module through the reinforcing member, so that the backlight module has a good heat dissipation effect; at the same time, since the rigidity of the reinforcing member is greater than the rigidity of the plastic frame, the anti-interference stiffness of the back frame is improved.
  • bending deformation during assembly is avoided, and assembly precision is high.
  • FIG. 1 is a front elevational view showing a liquid crystal display device of the present invention
  • FIG. 2 is a first embodiment of a front view of a back frame of a backlight module of the liquid crystal display device shown in FIG. 1;
  • Figure 3 is a cross-sectional view of the back frame of Figure 2 taken along line A-A;
  • FIG. 4 is a second embodiment of a front view of a back frame of a backlight module of the liquid crystal display device shown in FIG. 1;
  • Figure 5 is a cross-sectional view of the back frame of Figure 4 taken along line B-B;
  • FIG. 6 is a third embodiment of a front view of a back frame of a backlight module of the liquid crystal display device shown in FIG. 1;
  • FIG. 7 is a fourth embodiment of a front view of a back frame of a backlight module of the liquid crystal display device shown in FIG. 1;
  • FIG. 8 is a fifth embodiment of a front view of a back frame of a backlight module of the liquid crystal display device shown in FIG. 1;
  • FIG. 9 is a sixth embodiment of a front view of a back frame of a backlight module of the liquid crystal display device shown in FIG. 1;
  • FIG. 10 is a seventh embodiment of a front view of a back frame of a backlight module of the liquid crystal display device shown in FIG. 1;
  • FIG. 11 is an eighth embodiment of a front view of a back frame of a backlight module of the liquid crystal display device shown in FIG. 1;
  • FIG. 12 is a ninth embodiment of a front view of a back frame of a backlight module of the liquid crystal display device shown in FIG. 1;
  • FIG. 13 is a tenth embodiment of a front view of the back frame of the backlight module of the liquid crystal display device shown in FIG. 1.
  • FIG. 13 is a tenth embodiment of a front view of the back frame of the backlight module of the liquid crystal display device shown in FIG. 1.
  • a liquid crystal display device 100 of the present invention includes a backlight module 1 and a display panel D.
  • the display panel D and the backlight module 1 are stacked.
  • the backlight module 1 includes a back frame, a light source (not shown), a light guide plate (not shown), and a plurality of optical films (not shown).
  • the back frame 10 is used to fix the light source, the light guide plate and the plurality of optical films.
  • the back frame 10 includes a plastic frame 11 and a reinforcing member 12.
  • the rigidity of the reinforcing member 12 is greater than the rigidity of the plastic frame 11.
  • the heat dissipation performance of the reinforcing member 12 is superior to the heat dissipation performance of the plastic frame 11.
  • the heat sink 12 is made of a metal such as aluminum or stainless steel.
  • the plastic frame 11 includes four side walls that are connected end to end, and is a first side wall 111, a second side wall 112, a third side wall 113, and a fourth side wall 114.
  • the first sidewall 111 and the third sidewall 113 are parallel to each other, and the second sidewall 112 and the fourth sidewall 114 are parallel to each other, and the two ends of the first sidewall 111 and the third sidewall 113 are respectively opposite to the second sidewall Both ends 112 and 112 are vertically connected.
  • Each of the side walls includes four surfaces of an inner side surface 101, a bottom surface 102, a top surface 103, and an outer side surface 104, wherein the inner side surface 101 is a surface facing the opposite side wall, and the outer side surface 104 is away from the opposite side wall.
  • the inner side surface 101 is opposite to the outer side surface 104;
  • the top surface 103 is a surface adjacent to the display panel D, and the bottom surface 102 is a surface away from the display panel, and the top surface 103 is disposed opposite to the bottom surface 104.
  • the light source of the backlight module generally includes a direct light source and a side light source.
  • the direct light source means that the light source is disposed directly under the light guide plate.
  • the side light source means that the light source is disposed on the side of the light guide plate.
  • the backlight module of the backlight module is disposed adjacent to a side wall of the back frame.
  • the first sidewall 111 is adjacent to the light source of the backlight module.
  • the reinforcing member 12 is disposed only on the first side wall 111. Therefore, the reinforcing member 12 has a shape of a single shape extending along the first side wall 111. Please refer to FIG. 2 for details. Referring to FIG. 3 further, the reinforcing member 12 is disposed outside the inner side surface 101 of the first side wall 111 and outside the bottom surface 102 of the connecting inner side surface 101. In other words, the reinforcing member 12 is wrapped around the inner side surface 101 and the bottom surface 102 of the first side wall 111.
  • the reinforcing member 12 is in thermal contact with the light source, and the reinforcing member 12 is disposed on the outer side of the inner side surface 101 of the first side wall 111 and on the bottom surface 102 of the first side wall 111.
  • the outer surface of the bottom surface 102 is disposed away from the display panel D.
  • the portion of the reinforcing member 12 disposed outside the bottom surface 102 is located outside the backlight module, and is disposed outside the liquid crystal display device after being assembled with the display panel D, thus being hot with the light source.
  • the contact reinforcement 12 can conduct heat from the light source to the outside of the backlight module to effectively dissipate heat from the light source.
  • the setting of the reinforcing member 12 can significantly improve the heat dissipation effect of the backlight module.
  • the rigidity of the reinforcing member 12 is greater than the rigidity of the plastic frame 11, the anti-interference stiffness of the backlight module can be significantly improved, and the assembly can be effectively avoided.
  • the case of bending deformation occurs in the process, so that the backlight module has high assembly precision.
  • the reinforcing member 12 ′ of the back frame 10 ′ of the present embodiment is disposed not only on the outer side of the inner side surface 101 of the first side wall 111 but also outside the bottom surface 102 , and is also disposed on the first side wall 111 . Outside of the outer side 104.
  • the reinforcement 12' Wrapped on the inner side surface 101, the bottom surface 102, and the outer side surface 104 of the first side wall 111. Since the heat transfer path is further expanded, the heat dissipation effect of the present embodiment is also improved as compared with the above embodiment.
  • FIG. 6 shows a third embodiment of the back frame of the backlight module of the liquid crystal display device of the present invention.
  • the reinforcing member 22 of the back frame 20 of the present embodiment includes two sub-reinforcing sheets 221 and 222 as compared with the second embodiment of the back frame shown in FIG.
  • the sub-reinforcing sheet body 221 is extended in a shape on the first side wall 111
  • the sub-reinforcing sheet body 222 is extended in a shape on the third side wall 113.
  • the provision of the sub-reinforcing sheets on the first side wall 111 and the third side wall 113 allows the anti-interference rigidity of the back frame to be further improved.
  • FIG. 7 shows a fourth embodiment of the back frame of the backlight module of the liquid crystal display device of the present invention.
  • the reinforcing sheet 32 of the back frame 30 of the present embodiment includes three sub-reinforcing sheets 321, 322 and 323 as compared with the third embodiment of the back frame shown in FIG.
  • the sub-reinforcing sheet 321 is extended in a shape on the first side wall 111
  • the sub-reinforcing sheet 322 is extended in a shape on the second side wall 112.
  • the sub-reinforcing sheet 323 is extended in a shape on the third side.
  • On the wall 113 Compared with the embodiment of the back frame shown in FIG. 6, the provision of the sub-reinforcing sheets on the first side wall 111, the second side wall 112 and the third side wall 113 allows the anti-interference stiffness of the back frame to be further improved.
  • the three sub-reinforcing sheets 321, 322, and 323 may also be wrapped around the first side wall 111, the fourth side wall 114, and the third side wall 113, respectively.
  • FIG. 8 shows a fifth embodiment of the back frame of the backlight module of the liquid crystal display device of the present invention.
  • the reinforcing sheet 42 of the back frame 40 of the present embodiment includes two sub-reinforcing sheets 421 and 422 as compared with the fourth embodiment of the back frame shown in FIG.
  • the sub-reinforcing sheet body 421 is extended in a shape on the first side wall 111
  • the sub-reinforcing sheet body 422 is extended in an L shape and wrapped around the second side wall 112 and the third side wall 113 which are connected in an L shape.
  • the L-shaped sub-reinforcing sheet body 422 may also be wrapped around the first side wall 111 and the second side wall 112 connected in an L shape, and the in-line sub-reinforcing sheet body is wrapped around the third side wall. 113 on.
  • FIG. 9 shows a sixth embodiment of the back frame of the backlight module of the liquid crystal display device of the present invention.
  • the reinforcing sheet 52 of the back frame 50 of the present embodiment is wrapped around the first side wall 111, the second side wall 112 and the third side wall 113 in a meandering shape.
  • the dome-shaped reinforcing sheet 52 may also be wrapped around the first side wall 111, the fourth side wall 114, and the third side wall 113.
  • FIG. 10 shows a seventh embodiment of the back frame of the backlight module of the liquid crystal display device of the present invention.
  • the reinforcing sheet 62 of the back frame 60 of the present embodiment is wrapped in a zigzag shape on the first side wall 111 , the second side wall 112 , the third side wall 113 , and The fourth side wall 114 is outside.
  • the anti-interference rigidity of the back frame is the strongest as compared with the case where the reinforcing sheets are disposed on one side wall, the two side walls, and the three side walls.
  • FIG. 11 shows an eighth embodiment of the back frame of the backlight module of the liquid crystal display device of the present invention.
  • the reinforcing sheet 72 of the back frame 70 of the present embodiment includes four sub-reinforcing sheets 721, 722, 723, and 724 as compared with the seventh embodiment of the back frame shown in FIG.
  • the sub-reinforcing sheet 721 is extended in a shape on the first side wall 111
  • the sub-reinforcing sheet 722 is extended in a shape on the second side wall 112.
  • the sub-reinforcing sheet 723 is extended in a shape on the third side.
  • the sub-reinforcing sheet 724 is wrapped in a shape on the fourth side wall 114.
  • Fig. 12 is a view showing a ninth embodiment of the back frame of the backlight module of the liquid crystal display device of the present invention.
  • the reinforcing sheet 82 of the back frame 80 of the present embodiment includes two L-shaped sub-reinforcing sheets 821 and 822 as compared with the eighth embodiment of the back frame shown in FIG.
  • the sub-reinforcing sheet body 821 is extended and wrapped around the first side wall 111 and the second side wall 112, and the sub-reinforcing sheet body 822 is extended to wrap around the third side wall 113 and the fourth side wall 114 which are connected in an L shape.
  • Fig. 13 is a view showing a tenth embodiment of the back frame of the backlight module of the liquid crystal display device of the present invention.
  • the reinforcing sheet 92 of the back frame 90 of the present embodiment includes two sub-reinforcing sheets 921 and 922 as compared with the ninth embodiment of the back frame shown in FIG.
  • the sub-reinforcing sheet body 921 is wrapped around the fourth side wall 113, the first side wall 111 and the second side wall 112, and the sub-reinforcing sheet body 922 is wrapped in a shape of the third side wall 113.
  • the dome-shaped sub-reinforced sheet may also be wrapped around the first sidewall 111, the second sidewall 112, and the third sidewall 113, and the in-line sub-reinforced sheet is wrapped around the fourth sidewall 114 and the like.
  • the reinforcing member and the plastic frame are integrally formed.
  • the reinforcing member can also be relatively fixed to the plastic frame in a nested manner.
  • the back frame of the backlight module of the present invention comprises a plastic frame and a reinforcing member, and the reinforcing member is disposed at least outside the inner side surface of the first side wall and outside the bottom surface of the connecting inner side surface to pass the light source through the reinforcing member.
  • the heat is transferred to the outside of the backlight module, so that the backlight module has a good heat dissipation effect; at the same time, since the rigidity of the reinforcement member is greater than the rigidity of the plastic frame, the anti-interference rigidity of the back frame is improved, thereby avoiding bending during assembly. Deformation ensures that the back frame has a high assembly accuracy.

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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（1）和液晶显示装置（100）。背光模组（1）包括背框（10），背框（10）包括胶框（11）和加强件（12），加强件（12）的刚度大于胶框（11）的刚度，胶框（11）包括首尾相接的四个侧壁，依次为第一侧壁（111）、第二侧壁（112）、第三侧壁（113）和第四侧壁（114），第一侧壁（111）邻接背光模组（1）的光源，加强件（12）至少设置于第一侧壁（111）的内侧面（101）外侧和连接内侧面（101）的底面（102）外侧，以通过加强件（12）将光源的热量传导至背光模组的外部，底面（102）为远离显示面板的表面。背光模组（1）的背框（10）具有良好的散热性能和抗扰刚度。

Description

背光模组及液晶显示装置
【技术领域】
本发明涉及显示领域，尤其涉及一种背光模组及液晶显示装置。
【背景技术】
液晶显示装置因具有低辐射、厚度薄和耗电低等优点，广泛应用于桌上型计算机、笔记本、个人数字助理、手机、电视等中。由于液晶显示面板为非发光型的显示器件，因此，为达到显示效果，需给液晶显示面板提供一面光源装置以实现显示功能，例如，背光模组，其用于为液晶显示面板提供亮度充分且分布均匀的面光源。
背光模组一般包括背框、光源、导光板和多个光学膜片，光源、导光板和多个光学膜片均固定至背框。换句话说，光源、导光板和多个光学膜片通过背框相对固定。
现有技术中，背框一般采用塑胶材料制成，然而，众所周知，塑胶材料的抗扰刚度较小，易在组装是发生弯曲变形，影响组装精度；此外，塑胶材料的导热性能较差，塑胶材质的背框无法对光源进行有效散热。
【发明内容】
本发明主要解决的技术问题是提供一种具有抗扰刚度较大且导热性能良好的背框的背光模组及液晶显示装置。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种背光模组，用于为显示面板提供背光源，背光模组包括背框，背框包括胶框和加强件，加强件的刚度大于胶框的刚度，胶框包括首尾相接的四个侧壁，依次为第一侧壁、第二侧壁、第三侧壁和第四侧壁，第一侧壁邻接背光模组的光源，加强件至少设置于第一侧壁的内侧面外侧和连接内侧面的底面外侧，以通过加强件将光源的热量传导至背光模组的外部，底面为远离显示面板的表面。
其中，加强件进一步设置于第三侧壁上。
其中，加强件包括两片分别沿第一侧壁和第三侧壁延伸设置的一字形的子加强片体。
其中，加强件进一步设置于第二侧壁或第四侧壁上。
其中，加强件包括三片一字形的子加强片体；或者加强片包括一片L形和一片一字形的子加强片体；或者加强片呈匚形。
其中，加强件进一步设置于第二侧壁和第四侧壁上，加强片包括四片一字形的子加强片体；或者加强件包括两片L形的子加强片体；或者加强件包括一片匚形的子加强片体和一片一字形的子加强片体；或者加强件整体呈与胶框匹配的口字形。
其中，加强件还设置于第一侧壁的外表面上，外表面与内表面相对设置。
其中，加强件与胶框采用一体成型的方式制得。
其中，加强件为金属材质。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种液晶显示装置，其包括层叠设置的背光模组和显示面板，背光模组包括背框，背框包括胶框和加强件，加强件的刚度大于胶框的刚度，胶框包括首尾相接的四个侧壁，依次为第一侧壁、第二侧壁、第三侧壁和第四侧壁，第一侧壁邻接背光模组的光源，加强件至少设置于第一侧壁的内侧面外侧和连接内侧面的底面外侧，以通过加强件将光源的热量传导至背光模组的外部，底面为远离显示面板的表面。
其中，加强件进一步设置于第三侧壁上。
其中，加强件包括两片分别沿第一侧壁和第三侧壁延伸设置的一字形的子加强片体。
其中，加强件进一步设置于第二侧壁或第四侧壁上。
其中，加强件包括三片一字形的子加强片体；或者加强片包括一片L形和一片一字形的子加强片体；或者加强片呈匚形。
其中，加强件进一步设置于第二侧壁和第四侧壁上，加强片包括四片一字形的子加强片体；或者加强件包括两片L形的子加强片体；或者加强件包括一片匚形的子加强片体和一片一字形的子加强片体；或者加强件整体呈与胶框匹配的口字形。
其中，加强件还设置于第一侧壁的外表面上，外表面与内表面相对设置。
其中，加强件与胶框采用一体成型的方式制得。
其中，加强件为金属材质。
本发明的有益效果是：与现有技术相比，本发明背光模组的背框包括胶框和加强件，加强件至少设置于第一侧壁的内侧面外侧和连接内侧面的底面外侧，以通过加强件将光源的热量传递至背光模组的外部，使背光模组具有良好的散热效果；同时，由于加强件的刚度大于胶框的刚度，因此，背框的抗扰刚度有所提升，进而避免组装时发生弯曲变形，组装精度较高。
【附图说明】
图1 是本发明液晶显示装置的主视示意图；
图2是图1所示液晶显示装置的背光模组的背框的主视示意图的第一实施方式；
图3是图2所示背框沿A-A向的剖视示意图；
图4是图1所示液晶显示装置的背光模组的背框的主视示意图的第二实施方式；
图5是图4所示背框沿B-B向的剖视示意图；
图6是图1所示液晶显示装置的背光模组的背框的主视示意图的第三实施方式；
图7是图1所示液晶显示装置的背光模组的背框的主视示意图的第四实施方式；
图8是图1所示液晶显示装置的背光模组的背框的主视示意图的第五实施方式；
图9是图1所示液晶显示装置的背光模组的背框的主视示意图的第六实施方式；
图10是图1所示液晶显示装置的背光模组的背框的主视示意图的第七实施方式；
图11是图1所示液晶显示装置的背光模组的背框的主视示意图的第八实施方式；
图12是图1所示液晶显示装置的背光模组的背框的主视示意图的第九实施方式；
图13是图1所示液晶显示装置的背光模组的背框的主视示意图的第十实施方式。
【具体实施方式】
请参照图1，本发明液晶显示装置100包括背光模组1和显示面板D，显示面板D与背光模组1层叠设置。
背光模组1包括背框、光源（未图示）、导光板（未图示）和多个光学膜片（未图示）。背框10用于固定光源、导光板和多个光学膜片。
图2所示为本发明液晶显示装置的背光模组的背框的第一实施方式。在本实施方式中，背框10包括胶框11和加强件12。加强件12的刚度大于胶框11的刚度。加强件12的散热性能优于胶框11的散热性能。优选地，散热件12为铝、不锈钢等金属材质。
胶框11包括首尾相接的四个侧壁，依次为第一侧壁111、第二侧壁112、第三侧壁113和第四侧壁114。其中，第一侧壁111与第三侧壁113相互平行，第二侧壁112与第四侧壁114相互平行，第一侧壁111和第三侧壁113的两端分别与第二侧壁112和第四侧壁113的两端垂直连接。上述侧壁中，每一侧壁均包括内侧面101、底面102、顶面103和外侧面104四个表面，其中，内侧面101为朝向相对侧壁的表面，外侧面104为背离相对侧壁的表面，在同一侧壁上，内侧面101与外侧面104相对设置；顶面103为邻接显示面板D的表面，底面102为远离显示面板的表面，顶面103与底面104相对设置。
背光模组的光源通常包括直下式光源和侧光式光源，直下式光源的含义是光源设置于导光板的正下方，侧光式光源的含义是光源设置于导光板的侧面。以设置侧光式光源的背光模组进行举例，光源至少邻接背框的一侧壁设置，本实施例中，第一侧壁111邻接背光模组的光源。
本实施例中，加强件12仅设置于第一侧壁111上，因此，加强件12整体呈沿第一侧壁111延伸的一字形，具体请参照图2。请进一步参照图3，加强件12设置于第一侧壁111的内侧面101外侧和连接内侧面101的底面102外侧。换句话说，加强件12包裹在第一侧壁111的内侧面101和底面102上。由于光源邻接第一侧壁111设置，因此，加强件12与光源热接触，加上加强件12既设置于第一侧壁111的内侧面101的外侧还设置于第一侧壁111的底面102的外侧，底面102远离显示面板D设置，加强件12设置于底面102的外侧的部分既位于背光模组的外部，且与显示面板D组装后位于整个液晶显示装置的外部，因此，与光源热接触的加强件12能够将光源的热量传导至背光模组的外部对光源进行有效的散热。
加强件12的设置除了能够明显改善背光模组的散热效果，同时，由于加强件12的刚度大于胶框11的刚度，因此，背光模组的抗扰刚度以得到明显的提升，能够有效避免组装过程中发生弯曲变形的情形，使得背光模组具有较高的组装精度。
图4和图5所示为本发明液晶显示装置的背光模组的背框的第二实施方式。与背框的第一实施方式相比，本实施方式背框10’的加强件12’不仅设置于第一侧壁111的内侧面101外侧和底面102外侧，同时还设置于第一侧壁111的外侧面104外侧。换句话说，加强件12’ 包裹在第一侧壁111的内侧面101、底面102以及外侧面104上。由于，传热路径进一步扩大，因此，本实施方式的散热效果也较前述实施方式有所提升。
图6所示为本发明液晶显示装置的背光模组的背框的第三实施方式。与图4所示背框的第二实施方式相比，本实施方式背框20的加强件22包括两个子加强片体221和222。子加强片体221呈一字形延伸包裹于第一侧壁111上，子加强片体222呈一字形延伸包裹于第三侧壁113上。与图5所示的背框的实施方式相比，在第一侧壁111和第三侧壁113上同时设置子加强片体使得背框的抗扰刚度得到进一步提升。
图7所示为本发明液晶显示装置的背光模组的背框的第四实施方式。与图6所示背框的第三实施方式相比，本实施方式背框30的加强片32包括三个子加强片体321、322和323。子加强片体321呈一字形延伸包裹于第一侧壁111上，子加强片体322呈一字形延伸包裹于第二侧壁112上，子加强片体323呈一字形延伸包裹于第三侧壁113上。与图6所示的背框的实施方式相比，在第一侧壁111、第二侧壁112和第三侧壁113上同时设置子加强片体使得背框的抗扰刚度得到进一步提升。
作为本实施方式的变形，三个子加强片体321、322和323亦可以分别包裹于第一侧壁111、第四侧壁114和第三侧壁113上。
图8所示为本发明液晶显示装置的背光模组的背框的第五实施方式。与图7所示背框的第四实施方式相比，本实施方式背框40的加强片42包括两个子加强片体421和422。子加强片体421呈一字形延伸包裹于第一侧壁111上，子加强片体422呈L形延伸包裹于呈L形连接的第二侧壁112和第三侧壁113外侧。
作为本实施方式的变形，L形的子加强片体422亦可以包裹于呈L形连接的第一侧壁111和第二侧壁112外侧，一字形的子加强片体包裹于第三侧壁113上。
图9所示为本发明液晶显示装置的背光模组的背框的第六实施方式。与图8所示背框的第五实施方式相比，本实施方式背框50的加强片52呈匚形延伸包裹于第一侧壁111、第二侧壁112和第三侧壁113外。在实际应用中，匚形的加强片52亦可以包裹于第一侧壁111、第四侧壁114和第三侧壁113外。
图10所示为本发明液晶显示装置的背光模组的背框的第七实施方式。与图9所示的背框的第六实施方式相比，本实施方式背框60的加强片62呈口字形延伸包裹于第一侧壁111、第二侧壁112、第三侧壁113和第四侧壁114外。与加强片设置于一个侧壁上、二个侧壁上和三个侧壁上相比，加强片设置于四个侧壁上的实施方式中背框的抗扰刚度最强。
图11所示为本发明液晶显示装置的背光模组的背框的第八实施方式。与图10所示的背框的第七实施方式相比，本实施方式背框70的加强片72包括四个子加强片体721、722、723和724。子加强片体721呈一字形延伸包裹于第一侧壁111上，子加强片体722呈一字形延伸包裹于第二侧壁112上，子加强片体723呈一字形延伸包裹于第三侧壁113上，子加强片体724呈一字形延伸包裹于第四侧壁114上。
图12所示为本发明液晶显示装置的背光模组的背框的第九实施方式。与图11所示的背框的第八实施方式相比，本实施方式背框80的加强片82包括两个L形子加强片体821和822。子加强片体821延伸包裹于第一侧壁111和第二侧壁112上，子加强片体822延伸包裹于呈L形连接的第三侧壁113和第四侧壁114外侧。
图13所示为本发明液晶显示装置的背光模组的背框的第十实施方式。与图12所示的背框的第九实施方式相比，本实施方式背框90的加强片92包括两个子加强片体921和922。其中，子加强片体921呈匚形延伸包裹于第四侧壁113、第一侧壁111和第二侧壁112外，子加强片体922呈一字形延伸包裹于第三侧壁113外。实际应用中，匚形的子加强片体亦可以包裹于第一侧壁111、第二侧壁112、第三侧壁113外，一字形的子加强片包裹于第四侧壁114外等。
在前述背框的全部实施方式中，优选地，加强件与胶框采用一体成型的方式制得。实际应用中，加强件亦可以采用嵌套的方式与胶框相对固定。
与现有技术相比，本发明背光模组的背框包括胶框和加强件，加强件至少设置于第一侧壁的内侧面外侧和连接内侧面的底面外侧，以通过加强件将光源的热量传递至背光模组的外部，使背光模组具有良好的散热效果；同时，由于加强件的刚度大于胶框的刚度，因此，背框的抗扰刚度有所提升，进而避免组装时发生弯曲变形，确保背框具有较高的组装精度。
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (18)

  1. 一种背光模组，用于为显示面板提供背光源，其中，所述背光模组包括背框，所述背框包括胶框和加强件，所述加强件的刚度大于所述胶框的刚度，所述胶框包括首尾相接的四个侧壁，依次为第一侧壁、第二侧壁、第三侧壁和第四侧壁，所述第一侧壁邻接所述背光模组的光源，所述加强件至少设置于所述第一侧壁的内侧面外侧和连接所述内侧面的底面外侧，以通过所述加强件将所述光源的热量传导至所述背光模组的外部，所述底面为远离所述显示面板的表面。
  2. 根据权利要求1所述的背光模组，其中，所述加强件进一步设置于所述第三侧壁上。
  3. 根据权利要求2所述的背光模组，其中，所述加强件包括两片分别沿所述第一侧壁和所述第三侧壁延伸设置的一字形的子加强片体。
  4. 根据权利要求2所述的背光模组，其中，所述加强件进一步设置于所述第二侧壁或第四侧壁上。
  5. 根据权利要求4所述的背光模组，其中，所述加强件包括三片一字形的子加强片体；或者所述加强片包括一片L形和一片一字形的子加强片体；或者所述加强片呈匚形。
  6. 根据权利要求2所述的背光模组，其中，所述加强件进一步设置于所述第二侧壁和第四侧壁上，所述加强片包括四片一字形的子加强片体；或者所述加强件包括两片L形的子加强片体；或者所述加强件包括一片匚形的子加强片体和一片一字形的子加强片体；或者所述加强件整体呈与所述胶框匹配的口字形。
  7. 根据权利要求1所述的背光模组，其中，所述加强件还设置于所述第一侧壁的外表面上，所述外表面与所述内表面相对设置。
  8. 根据权利要求1所述的背光模组，其中，所述加强件与所述胶框采用一体成型的方式制得。
  9. 根据权利要求1所述的背光模组，其中，所述加强件为金属材质。
  10. 一种液晶显示装置，其中，所述液晶显示装置包括层叠设置的背光模组和显示面板，所述背光模组包括背框，所述背框包括胶框和加强件，所述加强件的刚度大于所述胶框的刚度，所述胶框包括首尾相接的四个侧壁，依次为第一侧壁、第二侧壁、第三侧壁和第四侧壁，所述第一侧壁邻接所述背光模组的光源，所述加强件至少设置于所述第一侧壁的内侧面外侧和连接所述内侧面的底面外侧，以通过所述加强件将所述光源的热量传导至所述背光模组的外部，所述底面为远离所述显示面板的表面。
  11. 根据权利要求10所述的液晶显示装置，其中，所述加强件进一步设置于所述第三侧壁上。
  12. 根据权利要求11所述的液晶显示装置，其中，所述加强件包括两片分别沿所述第一侧壁和所述第三侧壁延伸设置的一字形的子加强片体。
  13. 根据权利要求11所述的液晶显示装置，其中，所述加强件进一步设置于所述第二侧壁或第四侧壁上。
  14. 根据权利要求13所述的液晶显示装置，其中，所述加强件包括三片一字形的子加强片体；或者所述加强片包括一片L形和一片一字形的子加强片体；或者所述加强片呈匚形。
  15. 根据权利要求11所述的液晶显示装置，其中，所述加强件进一步设置于所述第二侧壁和第四侧壁上，所述加强片包括四片一字形的子加强片体；或者所述加强件包括两片L形的子加强片体；或者所述加强件包括一片匚形的子加强片体和一片一字形的子加强片体；或者所述加强件整体呈与所述胶框匹配的口字形。
  16. 根据权利要求10所述的液晶显示装置，其中，所述加强件还设置于所述第一侧壁的外表面上，所述外表面与所述内表面相对设置。
  17. 根据权利要求10所述的液晶显示装置，其中，所述加强件与所述胶框采用一体成型的方式制得。
  18. 根据权利要求10所述的液晶显示装置，其中，所述加强件为金属材质。
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