WO2017045336A1 - 一种背光模组及显示装置 - Google Patents

一种背光模组及显示装置 Download PDF

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Publication number
WO2017045336A1
WO2017045336A1 PCT/CN2016/073040 CN2016073040W WO2017045336A1 WO 2017045336 A1 WO2017045336 A1 WO 2017045336A1 CN 2016073040 W CN2016073040 W CN 2016073040W WO 2017045336 A1 WO2017045336 A1 WO 2017045336A1
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WO
WIPO (PCT)
Prior art keywords
frame
outer frame
side wall
hook
backlight module
Prior art date
Application number
PCT/CN2016/073040
Other languages
English (en)
French (fr)
Inventor
王兴
张启平
李焱锋
孙文波
刘同敏
Original Assignee
京东方科技集团股份有限公司
合肥京东方显示光源有限公司
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.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司, 合肥京东方显示光源有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/309,150 priority Critical patent/US10139555B2/en
Publication of WO2017045336A1 publication Critical patent/WO2017045336A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/08—Devices for easy attachment to any desired place, e.g. clip, clamp, magnet
    • F21V21/088—Clips; Clamps
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means

Definitions

  • the present disclosure relates to the field of display technologies, and in particular, to a backlight module and a display device.
  • FIG. 1 is a schematic view showing the overall appearance of a card structure of a back plate and a frame of a medium and small size backlight in the related art
  • FIG. 2 is a partial engagement sectional structure of a back plate and a frame of a medium and small size backlight in the related art
  • schematic diagram is a schematic view showing the overall appearance of a card structure of a back plate and a frame of a medium and small size backlight in the related art
  • the reflective sheet 3 is first assembled in the inner cavity of the back plate 1 , and then the light guide plate 4 is assembled on the reflective sheet 3 by using a fixing tape, and then the back is used.
  • the engaging structure between the board 1 and the frame 2 (shown as a snap-fit structure in part B in Fig. 2) combines the back board 1 and the frame 2, and a part of the light guide board 4 is pressed under the frame 2.
  • the engaging structure of the backboard 1 and the frame 2 is as shown in FIG. 1 and FIG. 2, and an opening 10 is disposed on the backboard 1, and a latching block 20 is disposed on the frame 2.
  • the latching block 20 is used.
  • the plastic is formed and deformed under the extrusion of the opening 10, and after being placed in the opening 10, the original shape is restored, and a tight fit is achieved with the opening 10.
  • the locking method in the assembly process, the locking method is very time-consuming and labor-intensive, the assembly efficiency is low, and the operator is easily fatigued; in the backlight maintenance process, the disassembly frame and the back plate are very complicated, usually The number of the engaging structures is about 13 to 15, and during the disassembly process, the thickness of the frame material is thin or the material of the back plate is soft (for example, the back plate is made of aluminum), and the appearance deformation is often high, and the damage caused during maintenance is high.
  • the above-mentioned snap structure utilizes the frame
  • the upper clamp block is deformed to achieve the engagement, and the frame is prone to chipping, and the product is often subjected to a slight external force during the production or transportation process, resulting in the release state being released, that is, the snapping and jumping, after the partial tripping
  • the bearing surface of the display screen on the frame 2 has a partial convexity, and the display screen is easily broken, so that the bad loss caused is serious.
  • the purpose of the disclosure is to provide a backlight module and a display device, which are simple and practical in structure, can effectively prevent the occurrence of snap-on and jump, and improve product assembly and maintenance efficiency.
  • a backlight module comprising:
  • the backboard includes a bottom plate and at least one side wall, the bottom plate and the side wall together form an accommodating space;
  • the frame is at least partially received in the accommodating space formed by the bottom plate and the side wall, and includes at least one outer frame surface disposed opposite to the side wall of the back plate;
  • a plurality of hooks are disposed on the outer frame surface of the frame, and a plurality of engaging portions corresponding to the plurality of hooks are disposed on the sidewall of the backboard;
  • the hook includes an outer portion of the frame a first portion of the frame connection and a second portion formed by bending the first portion, the engaging portion includes a card hole portion and a limiting baffle portion located around the card hole portion; wherein the card A first portion of the hook is worn in the hole portion, and the second portion is engaged with the limit plate portion.
  • the bending and extending directions of the second portions of the plurality of hooks on the same outer frame surface of the frame are uniform; the limiting baffles of the plurality of engaging portions on the same side wall of the backing plate The portion is located on the same side of the card hole portion and corresponds to the position of the corresponding second portion of the hook.
  • the backboard includes opposite first and second sidewalls and a third sidewall connected between the first sidewall and the second sidewall;
  • the frame includes the first side a first outer frame surface opposite to the wall, a second outer frame surface corresponding to the second side wall, and a third outer frame surface opposite to the third side wall;
  • first outer frame surface and the second outer frame surface, the second portion of each of the hooks is bent and extended in a direction away from the third outer frame surface; and the third outer frame surface The second portion of each hook extends in a direction in which the first outer frame surface or the second outer frame surface is located.
  • the limiting baffle portion includes: a first limiting baffle parallel to the outer frame surface of the frame; and a direction perpendicular to the outer frame surface of the frame and the second portion Parallel second limit baffle;
  • first limiting baffle is disposed between the second portion and an outer frame surface of the frame for extending in a direction of the second portion and an outer frame of the frame Limiting the hook in a vertical direction;
  • second limiting baffle is disposed on a side of the second portion near or away from the bottom plate of the backboard for being perpendicular to the bottom plate Limit the hook in the direction.
  • the engaging portion is a stamping groove structure formed on the side wall of the backing plate and recessed in the direction of the frame, and the punching groove structure includes a groove bottom and a groove side wall.
  • the first limiting baffle is formed by the groove bottom
  • the second limiting baffle is formed by the groove sidewall
  • the card hole portion is formed on the groove bottom.
  • a second portion of the hook has a preset distance from an outer frame surface of the frame, and the preset distance is greater than a thickness of the first limit baffle.
  • the first portion of the hook can slide in the extending direction of the second portion in the card hole portion, so that when the back plate is assembled with the frame, the first portion of the hook is from the card hole After passing through the portion, the portion is slid in the hole portion, and the second portion is engaged with the limit baffle portion to be engaged and fixed.
  • the hook is an L-shaped hook structure, and the first portion and the second portion are bent into an L shape.
  • the hook is integral with the frame.
  • a display module includes the backlight module as described above.
  • the backlight module provided by the present disclosure has a locking manner in which the back plate and the frame are engaged with the engaging portion, and is simpler and more practical than the locking and assembling method of the back plate and the frame in the related art. Product assembly and maintenance efficiency, effectively prevent the occurrence of snap-in.
  • FIG. 1 is a schematic view showing the overall assembly of a back plate and a frame of a medium and small size backlight in the related art
  • FIG. 2 is a cross-sectional view showing a partial engagement structure of a back plate and a frame of a medium and small size backlight in the related art. intention;
  • FIG. 3 is a schematic overall structural view of a backplane in a backlight module according to an embodiment of the present disclosure
  • Figure 4 is a partial structural view of a portion A of Figure 3;
  • FIG. 5 is a partial structural diagram of a frame in a backlight module according to an embodiment of the present disclosure
  • FIG. 6 is a schematic perspective view showing a structure of a back plate and a frame in a backlight module according to an embodiment of the present disclosure
  • FIG. 7 is a schematic overall assembly view of a backplane and a frame in a backlight module according to an embodiment of the present disclosure
  • Figure 8 is a schematic view showing the engaging structure of the portion C in Figure 7;
  • Figure 9 is a side view of Figure 7;
  • Figure 10 is a schematic view showing the engaging structure of the portion D in Figure 9;
  • FIG. 11 is a schematic view showing the cooperation structure of the engaging portion of the backboard and the hook on the frame in the backlight module provided in the embodiment of the present disclosure.
  • the present disclosure provides a backlight for the problem that the snap-fit assembly method of the back panel and the frame is easy to generate debris when assembling the backlight module in the related art, the assembly is troublesome, the assembly efficiency is low, and the snap-off is prone to occur.
  • the module is simple and practical in structure, which can effectively prevent the occurrence of snap-in and jump, and improve the assembly and maintenance efficiency of the product.
  • a backlight module provided by at least some embodiments of the present disclosure includes a back plate 100 and a frame 200 .
  • the backplane 100 includes a bottom plate 101 and at least one side wall (not shown in FIG. 3).
  • the bottom plate 101 and the side wall together form an accommodating space.
  • FIG. 5 a perspective partial structural view of a frame 200 before assembly according to an embodiment of the present disclosure is provided.
  • the frame 200 is at least partially received in the accommodating space formed by the bottom plate 101 and the side wall, and includes at least one outer frame surface (ie, a side surface) disposed opposite to the side wall of the back plate 100.
  • a plurality of hooks 300 are disposed on the outer frame surface of the frame 200; 300 includes a first portion 301 that is coupled to the outer frame of the frame 200 and a second portion 302 that is formed by bending the first portion 301.
  • FIG. 4 is a partial structural view of a portion A of the backplane structure shown in FIG. 3. As shown in FIG. 3 and FIG. 4, a plurality of cards corresponding to the plurality of hooks 300 are disposed on the sidewall of the backplane 100. Joint department.
  • the engaging portion includes a card. a hole portion 401 and a limiting baffle portion 402 located around the hole portion 401; wherein, as shown in FIG. 6, FIG. 8, FIG. 10 and FIG. 11, the first portion 301 of the hook 300 is worn in the In the card hole portion 401, the second portion 302 is engaged with the limit baffle portion 402.
  • the backlight module provided by the above solution of the present disclosure is provided with a hook 300 on the frame 200 and a latching portion on the back plate 100.
  • the hook 300 is composed of a first portion 301 and a second portion 302.
  • the first portion 301 A bent structure is formed between the second portion 302 and the second portion 302.
  • the back plate 100 When the assembled backlight module is repaired and disassembled, the back plate 100 is pushed toward the second portion 302 to extend the back plate 100, and then the hook 300 is detached from the card hole portion 401 to be disassembled.
  • the backlight module provided by the present disclosure is simpler to assemble and disassemble than the backlight in the related art, and can improve assembly and maintenance efficiency.
  • the backlight module provided by at least some embodiments of the present disclosure utilizes the bent structure of the hook 300 to cooperate with the engaging portion on the backboard 100 to engage and fix, and the related art uses the card to squeeze the deformation card.
  • the engaging structure is more firm, which can effectively prevent the occurrence of the snap-on and the reduction of the debris of the frame 200.
  • the frame 200 may be a conventional frame or a plastic frame that can be elastically deformed.
  • the size of the card hole portion 401 is satisfied.
  • the first portion 301 of the hook 300 can be slid in the card hole portion along the extending direction of the second portion 302 such that when the back panel 100 is assembled with the frame 200, the first portion of the hook 300 The 301 slides in the card hole portion 401 after passing through the card hole portion 401, and the second portion 302 is engaged with the limit baffle portion 402 to be engaged and fixed.
  • FIG. 5 is a perspective view showing a part of a structure of a frame in a backlight module according to an embodiment of the present disclosure.
  • the hook 300 on the frame 200 is L.
  • the type of hook structure; the first portion 301 and the second portion 302 are bent into an L shape.
  • the hook 300 and the frame 200 are of a unitary structure.
  • the hook 300 adopts an L-shaped hook, and an opening is formed between the L-shaped hook and the frame 200.
  • the second portion 302 of the L-shaped hook can protrude from the card hole portion 401 on the back plate 100, and then the back plate 100
  • the upper limit baffle portion 402 can be caught in the opening formed between the L-shaped hook and the outer frame surface of the frame 200 to achieve the engagement and fixation.
  • the second portion 302 of the plurality of hooks 300 on the same outer frame surface of the frame 200 has a bending direction extending in the same direction;
  • the limiting baffle portions of the plurality of engaging portions on the same side wall of the backing plate 100 are located on the same side of the card hole portion 401, and correspond to the positions of the corresponding second portion 302 of the hook 300.
  • the bending directions of the second portions 302 of the plurality of hooks 300 on the same outer frame surface of the frame 200 are uniform, that is, the same on the same outer frame surface of the frame 200.
  • the orientations of the openings formed between the L-shaped hooks and the outer frame surface of the frame 200 are the same, so that the L-shaped hooks on the same outer frame surface can be pushed and fixed in the same direction when the L-shaped hooks are assembled in the same direction. Easy to assemble.
  • the backplane 100 includes a first sidewall 111 and a second sidewall 112 disposed opposite to each other and connected to a third side wall 113 between the first side wall 111 and the second side wall; as shown in FIG. 5, the frame 200 includes a first outer frame surface 211 opposite to the first side wall 111, and the a second outer frame surface corresponding to the second side wall and a third outer frame surface 213 opposite to the third side wall 113.
  • each card The second portion 302 of the hook 300 is bent and extended toward the third outer frame surface 213; on the third outer frame surface 213, the second portion 302 of each of the hooks 300 faces the first outer frame The surface 211 or the second outer frame surface is bent and extended.
  • one side of the back plate 100 is used for mounting a light bar, and one side for mounting the light bar is not provided with a side wall, and
  • a plurality of hooks 300 are respectively disposed on the other three side walls of the back plate 100, and openings of the plurality of L-shaped hooks corresponding to the third side walls 113 opposite to the insertion side are respectively provided.
  • the first outer frame surface 211 corresponding to the first side wall 111 and the second side wall and the openings of the plurality of L-shaped hooks on the second outer frame surface are oriented The insertion side at the time of assembly, that is, the direction away from the third side wall 113.
  • the frame 200 is inserted into the accommodating space of the backboard 100 from the insertion side of the backplane 100.
  • the first sidewall 111 of the backplane 100 and the first outer frame 211 of the frame 200 and the backplane are assembled.
  • the second side wall of the frame 200 and the second outer frame surface of the frame 200 align the first outer frame surface 211 of the frame 200 and all the hooks 300 on the second outer frame surface with the engaging portions on the back plate 100, After the hook 300 protrudes from the card hole portion 401, the back plate 100 is pushed in the opposite direction of the bending extension direction of the second portion 302 of the hook 300, so that the hook 300 and the engaging portion are closely matched; then, the assembly
  • the third outer frame surface 213 of the frame 200 and the third side wall 113 of the back plate 100 extend the third outer frame surface 213 of the frame 200 to the second portion 302 of the hook 300 by the elasticity of the frame 200. The direction is slightly lifted so that all the hooks 300 on the third outer frame surface 213 of the frame 200 are snapped onto the engaging portion of the back plate 100.
  • the foregoing solution provides an alternative manner of the opening direction of the hook 300 on each outer frame surface of the frame 200.
  • the outer frame surfaces of the frame 200 are The opening direction of the hook 300 is not limited.
  • the hooks 300 on the outer frame surfaces of the frame 200 may also face the direction of the bottom plate 101 of the backboard 100, or both of them face the direction of the display panel.
  • the limiting baffle portion 402 includes: a first limiting baffle 412 having a frame surface parallel to the frame 200; and a second limiting baffle 422 perpendicular to the outer frame surface of the frame 200 and parallel to the extending direction of the second portion 302.
  • the first limiting baffle 412 is coupled to the second portion 302 and the frame 200. Between the outer frame faces, the hook 300 is restrained in the extending direction of the second portion 302 and in a direction perpendicular to the outer frame surface of the frame 200; the second limit baffle A 422 card is disposed on a side of the second portion 302 near or away from the bottom plate 101 of the backboard 100 for limiting the hook 300 in a direction perpendicular to the bottom plate 101.
  • the engaging portion on the back plate 100 can cooperate with the hook 300 on the frame 200 through the first limiting baffle 412 and the second limiting baffle 422, so that the extending direction of the second portion 302 can be realized.
  • the hook 300 is restricted in the three directions (Z direction) in the direction perpendicular to the outer frame surface of the frame 200 (Y direction) and in the direction perpendicular to the bottom plate 101.
  • the engaging portion is a stamping groove structure formed on the sidewall of the back plate 100 and recessed in the direction of the frame 200 .
  • the stamping groove structure includes a groove bottom and a groove side wall, wherein the first limit baffle 412 is formed by the groove bottom, and the second limit baffle 422 is formed by the groove side wall.
  • the hole portion 401 is opened on the bottom of the groove.
  • a punching groove is formed by punching on the side wall of the back plate 100, and the hole portion 401 is opened at the bottom of the groove of the punching groove.
  • the second portion 302 protrudes from the outer frame surface of the frame 200, and the groove bottom of the punching groove is recessed in the side wall of the back plate 100, so that the hook 300 of the frame 200 is inserted into the card hole portion 401 during assembly;
  • the first limiting baffle 412 and the second limiting baffle 422 are respectively formed by the groove bottom and the groove side wall of the punching groove, and the structure is simpler, and the manufacturing process of the back plate 100 is also simpler.
  • the above is only an optional structure of the engaging portion on the backboard 100.
  • the engaging portion can also be implemented by other structures, which is not limited thereto.
  • the back plate 100 since the first side wall 111 and the second side wall of the back plate 100 are assembled with the first outer frame surface 211 and the second outer frame surface of the frame 200 when assembling the back plate 100 and the frame 200, reassembling The third side wall 113 of the back plate 100 and the third outer frame surface 213 of the frame 200. At this time, the back plate 100 needs to be slightly pulled toward the first side wall 111 or the second side wall so that the frame 200 is on the frame 200.
  • the hook 300 can be caught in the hole portion 401 of the third side wall 113 of the back plate 100. Therefore, in the backlight module provided by the embodiment of the present disclosure, optionally, the second portion 302 of the hook 300 has a preset distance from the outer frame surface of the frame 200, and the preset The distance is greater than the thickness of the first limit stop 412.
  • the length of the hook 300 on the frame 200 in the extending direction of the second portion 302 is about 3 mm, and the engaging portion on the back plate 100 is in the second portion.
  • the length in the extending direction of 302 is about 7 mm, which is preferably slightly larger than twice the length of the hook 300.
  • the distance between the second portion 302 of the hook 300 on the frame 200 and the bottom surface of the engaging portion on the back plate 100 is about 0.25 mm to 0.3 mm, which is slightly larger than the thickness of the sheet metal of the back plate 100 (back plate 100 ⁇ )
  • the thickness of the gold piece is about 0.2 mm).
  • a display module including the backlight module as described above.
  • the display module may include: a liquid crystal display, a liquid crystal television, a mobile terminal device, a wearable device, and the like.

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

Abstract

一种背光模组及显示装置，所述背光模组包括：背板（100），背板（100）包括底板（101）及至少一侧壁，底板（101）与侧壁共同形成一容置空间；框架（200），框架（200）至少部分容置于底板（101）与侧壁形成的容置空间内，框架（200）包括与背板（100）的侧壁相对设置的至少一个外框面；在框架（200）的外框面上设有多个卡勾（300），背板（100）的侧壁上设有与多个卡勾（300）对应的多个卡合部；卡勾（300）包括与框架（200）的外框面连接的第一部分（301）和由第一部分（301）弯折延伸形成的第二部分（302），卡合部包括一卡孔部（401）及位于卡孔部（401）周围的限位挡板部（402）；卡勾（300）的第一部分（301）穿装于卡孔部（401）内，第二部分（302）与限位挡板部（402）卡合固定。

Description

一种背光模组及显示装置
相关申请的交叉引用
本申请主张在2015年9月18日在中国提交的中国专利申请号No.201510600854.8的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及显示技术领域，尤其涉及一种背光模组及显示装置。
背景技术
随着液晶显示产品薄型化和高屏占比的发展趋势，市场对显示产品的显示效果要求越来越高，这就意味着液晶屏背光源(BACK LIGHT UNIT，BLU)的品质必须进一步提升。近年来，MOBILE，PAD，Notebook等型号液晶显示市场需求量十分大，随之所需求的液晶显示器用背光源数量逐年攀升。
图1所示为相关技术中，中小尺寸背光源的背板与框架的卡合结构整体外观示意图；图2所示为相关技术中，中小尺寸背光源的背板与框架的局部卡合剖面结构示意图。
如图1至图2所示，相关技术中背光源在组装时，先将反射片3组装在背板1内腔，后将导光板4利用固定胶带组装在反射片3之上，接着利用背板1与框架2之间的卡合结构(图2中B部分所示为卡合结构)，将背板1与框架2组合在一起，导光板4的一部分被压在框架2之下。其中，背板1与框架2的卡合结构如图1和图2所示，在背板1上设有一开孔10，在框架2上设置有一卡块20，在组装时，卡块20采用塑胶形成，在开孔10挤压下发生形变，置于开孔10内之后，再恢复原状，而与开孔10实现紧密配合。
这种组装方式，在组装过程中，这种卡合方式十分费时费力，组装效率低下，且易造成作业员疲劳；在背光源维修过程中，拆卸框架与背板的卡合结构十分繁琐，通常卡合结构的数量在13至15个左右，而且在拆卸过程中，因框架料厚度薄或者背板材质软(如：背部采用铝板)而造成的外观变形不良时常高发，在维修时造成的损失不可忽视；此外，上述卡合结构利用框架 上卡块挤压变形实现卡合，框架上易产生碎屑，且产品在生产或运输过程中，常会因为受到轻微外力的作用，导致卡合状态解除，即卡合跳脱，局部跳脱后框架2上显示屏的承载面会有局部凸起，显示屏容易破碎，因此而造成的不良损失严重。
发明内容
本公开的目的在于提供一种背光模组及显示装置，结构简单实用，能有效防止卡合跳脱的发生，提高产品的组装及维修效率。
本公开所提供的技术方案如下：
一种背光模组，包括：
背板，所述背板包括底板及至少一侧壁，所述底板与所述侧壁共同形成一容置空间；
框架，所述框架至少部分容置于所述底板与所述侧壁形成的容置空间内，包括与所述背板的侧壁相对设置的至少一个外框面；
在所述框架的外框面上设有多个卡勾，所述背板的侧壁上设有与多个卡勾对应的多个卡合部；所述卡勾包括与所述框架的外框面连接的第一部分和由所述第一部分弯折延伸形成的第二部分，所述卡合部包括一卡孔部及位于所述卡孔部周围的限位挡板部；其中所述卡勾的第一部分穿装于所述卡孔部内，所述第二部分与所述限位挡板部卡合固定。
进一步的，位于所述框架的同一外框面上的多个卡勾的第二部分的弯折延伸方向一致；位于所述背板的同一侧壁上的多个卡合部的限位挡板部分位于卡孔部的同一侧，而与对应的所述卡勾的第二部分位置相对应。
进一步的，所述背板包括相对设置的第一侧壁和第二侧壁及连接于第一侧壁和第二侧壁之间的第三侧壁；所述框架包括与所述第一侧壁相对的第一外框面、与所述第二侧壁对应的第二外框面及与所述第三侧壁相对的第三外框面；
其中在所述第一外框面和所述第二外框面上，各卡勾的第二部分均朝背离所述第三外框面的方向弯折延伸；在所述第三外框面上，各卡勾的第二部分朝所述第一外框面或所述第二外框面所在的方向弯折延伸。
进一步的，所述限位挡板部包括：与所述框架的外框面平行的第一限位挡板；及与所述框架的外框面垂直、并与所述第二部分的延伸方向平行的第二限位挡板；
其中，所述第一限位挡板卡设在所述第二部分与所述框架的外框面之间，用于在所述第二部分的延伸方向上及与所述框架的外框面垂直的方向上对卡勾进行限位；所述第二限位挡板卡设在所述第二部分的靠近或远离所述背板的底板的一侧，用于在与所述底板垂直的方向上对卡勾进行限位。
进一步的，所述卡合部为一冲压形成于所述背板的侧壁上，并向所述框架所在方向凹陷的冲压凹槽结构，所述冲压凹槽结构包括槽底和槽侧壁，其中，所述第一限位挡板由所述槽底形成，所述第二限位挡板由所述槽侧壁形成，所述卡孔部开设于所述槽底上。
进一步的，所述卡勾的第二部分与所述框架的外框面之间具有预设距离，且所述预设距离大于所述第一限位挡板的厚度。
进一步的，所述卡勾的第一部分能够在所述卡孔部内沿所述第二部分的延伸方向滑动，以使得当背板与框架组装时，所述卡勾的第一部分自所述卡孔部穿过之后在所述卡孔部内滑动，使所述第二部分与所述限位挡板部配合而卡合固定。
进一步的，所述卡勾为L型卡勾结构，其第一部分和第二部分之间弯折成L型。
进一步的，所述卡勾与所述框架为一体结构。
一种显示模组，包括如上所述的背光模组。
本公开的有益效果如下：
本公开所提供的背光模组，其背板与框架所采用的卡勾与卡合部配合的卡合方式，相较于相关技术中背板与框架的卡合组装方式，简单实用，能提高产品的组装及维修效率，有效防止卡合跳脱的发生。
附图说明
图1为相关技术中中小尺寸背光源的背板与框架的整体组装示意图；
图2为相关技术中中小尺寸背光源的背板与框架的局部卡合结构剖面示 意图；
图3为本公开实施例中提供的背光模组中背板的整体结构示意图；
图4为图3中A部分的局部结构示意图；
图5为本公开实施例中提供的背光模组中框架的部分结构示意图；
图6为本公开实施例中提供的背光模组中背板与框架的卡合结构的立体示意图；
图7为本公开实施例中提供的背光模组中背板与框架的组装整体示意图；
图8为图7中C局部的卡合结构示意图；
图9为图7的侧视图；
图10为图9中D局部的卡合结构示意图；
图11为本公开实施例中提供的背光模组中背板的卡合部与框架上的卡勾的配合结构示意图。
具体实施方式
以下结合附图对本公开的原理和特征进行描述，所举实例只用于解释本公开，并非用于限定本公开的范围。
针对相关技术中背光模组组装时背板与框架所采用的卡合组装方式容易产生碎屑，组装麻烦，组装效率低，且易发生卡合跳脱的技术问题，本公开提供了一种背光模组，结构简单实用，能有效防止卡合跳脱的发生，提高产品的组装及维修效率。
如图7所示，本公开至少一部分实施例所提供的背光模组包括：背板100和框架200。
参见图3，为本公开实施例中提供的背光模组中背板100的立体结构示意图。所述背板100包括底板101及至少一侧壁(图3中未示出)，所述底板101与所述侧壁共同形成一容置空间。
参见图5，为本公开实施例中提供的装配前的框架200的立体局部结构示意图。所述框架200至少部分容置于所述底板101与侧壁形成的容置空间内，包括与所述背板100的侧壁相对设置的至少一个外框面(即侧表面)。
如图5所示，在所述框架200的外框面上设有多个卡勾300；所述卡勾 300包括与所述框架200的外框面连接的第一部分301和由所述第一部分301弯折延伸形成的第二部分302。
图4为图3所示的背板结构中A部分的局部结构示意图，如图3和图4所示，所述背板100的侧壁上设有与多个卡勾300对应的多个卡合部。
为了更清楚的说明本公开，如图4(图4为装配前的背板局部立体示意图)和图11所示(装配后的背板和框架的局部示意图)，所述卡合部包括一卡孔部401及位于所述卡孔部401周围的限位挡板部402；其中，如图6、图8、图10及图11所示，所述卡勾300的第一部分301穿装于所述卡孔部401内，所述第二部分302与所述限位挡板部402卡合固定。
本公开上述方案所提供的背光模组，在框架200上设置有卡勾300，在背板100上设置卡合部；其中，卡勾300由第一部分301和第二部分302组成，第一部分301和第二部分302之间形成弯折结构。在框架和背板组装时，将框架200置入背板100的容置空间内，将框架200上的卡勾300自背板100上的卡合部的卡孔部401伸出之后，向第二部分302弯折延伸方向相反的方向推动背板100，即可实现卡勾300的第二部分302与卡合部的限位挡板部402卡合固定，完成组装。框架和背板组装后形成的背光模组的立体结构示意图如图7所示。
上述组装后的背光模组在维修拆卸时，将背板100朝第二部分302弯折延伸方向推动背板100，再将卡勾300从卡孔部401脱出即可实现拆卸。
由此可见，本公开所提供的背光模组，其组装和拆卸方式相较于相关技术中背光源，组装和拆卸更为简单，可以提高组装及维修效率。并且，本公开至少一部分实施例所提供的背光模组，利用卡勾300的弯折结构来与背板100上的卡合部配合进行卡合固定，与相关技术中利用卡块挤压变形卡合固定的方式相比，卡合结构更为牢固，可以有效防止卡合跳脱的发生，且能减少框架200碎屑产生。
需要说明的是，在上述方案以及下述所有内容中，所述框架200可以是常规框架，也可以是可发生弹性变形的胶框。
以下说明本公开提供的背光模组的可选实施例。
在本公开所提供的实施例中，可选的，所述卡孔部401的尺寸大小满足 可以使得所述卡勾300的第一部分301能够在所述卡孔部内沿所述第二部分302的延伸方向滑动，以使得当背板100与框架200组装时，所述卡勾300的第一部分301自所述卡孔部401穿过之后在所述卡孔部401内滑动，使所述第二部分302与所述限位挡板部402配合而卡合固定。
如图5所示，为本公开实施例中提供的背光模组中框架的部分结构立体示意图，在本公开所提供的实施例中，可选的，框架200上的所述卡勾300为L型卡勾结构；其第一部分301和第二部分302之间弯折成L型。
进一步优选的，所述卡勾300与所述框架200为一体结构。
采用上述方案，卡勾300采用L型卡勾，L型卡勾与框架200之间形成一开口。组装时，请结合图4、图5、图6以及图8和图9所示，L型卡勾的第二部分302可以自背板100上的卡孔部401伸出，然后，背板100上的限位挡板部402可以卡在L型卡勾与框架200的外框面之间形成的开口内，而实现卡合固定。
当然可以理解的是，所述卡勾300的具体结构可以不仅仅局限于此。
此外，在本公开实施例中提供的背光模组，可选的，位于所述框架200的同一外框面上的多个卡勾300的第二部分302的弯折延伸方向一致；位于所述背板100的同一侧壁上的多个卡合部的限位挡板部分位于卡孔部401的同一侧，而与对应的所述卡勾300的第二部分302位置相对应。
采用上述方案，位于所述框架200的同一外框面上的多个卡勾300的第二部分302的弯折延伸方向一致，也就是说，位于所述框架200的同一外框面上的多个L型卡勾与框架200的外框面之间形成的开口的朝向一致，如此，同一外框面上的L型卡勾可以在组装时，朝同一方向推动背板100而实现卡合固定，便于组装。
此外，在本公开实施例提供的背光模组中，可选的，如图3和图4所示，所述背板100包括相对设置的第一侧壁111和第二侧壁112及连接于第一侧壁111和第二侧壁之间的第三侧壁113；如图5所示，所述框架200包括与所述第一侧壁111相对的第一外框面211、与所述第二侧壁对应的第二外框面及与所述第三侧壁113相对的第三外框面213。
其中，如图5所示，在所述第一外框面211和所述第二外框面上，各卡 勾300的第二部分302均朝所述第三外框面213的方向弯折延伸；在所述第三外框面213上，各卡勾300的第二部分302朝所述第一外框面211或所述第二外框面所在的方向弯折延伸。
上述方案中，在本公开提供的背光模组中，如图3和图7所示，背板100上有一侧用于安装灯条，用于安装灯条的一侧没有设置侧壁，而作为组装时框架200的插入侧，在背板100的其他三条侧壁上则分别设置多个卡勾300，且其中与该插入侧相对的第三侧壁113对应的多个L型卡勾的开口朝向于第一侧壁111或第二侧壁，而第一侧壁111和第二侧壁对应的第一外框面211和第二外框面上的多个L型卡勾的开口均朝向组装时的插入侧，即朝背离第三侧壁113的方向。在组装时，框架200自背板100上的插入侧插入至背板100的容置空间内，首先，组装背板100的第一侧壁111与框架200的第一外框面211以及背板100的第二侧壁与框架200的第二外框面，将框架200的第一外框面211和第二外框面上的所有卡勾300对准背板100上的卡合部，将卡勾300自卡孔部401伸出之后，沿卡勾300的第二部分302的弯折延伸方向的相反方向推动背板100，实现卡勾300与卡合部二者紧密配合；然后，装配框架200的第三外框面213与背板100的第三侧壁113，利用框架200的自身弹性，将框架200的第三外框面213向卡勾300的第二部分302的弯折延伸方向略微提起，使得框架200的第三外框面213上的所有卡勾300扣入背板100的卡合部上。
需要说明的是，上述方案提供了一种框架200的各外框面上的卡勾300的开口方向的可选方案，应当理解的是，在实际应用中，框架200的各外框面上的卡勾300的开口方向并不进行局限，例如，所述框架200的各外框面上的卡勾300还可以均朝向背板100的底板101所在方向，或者均朝向显示面板所在方向。
此外，在本公开实施例所提供的背光模组中，可选的，如图4、图6、图8和图10及图11所示，所述限位挡板部402包括：与所述框架200的外框面平行的第一限位挡板412；及与所述框架200的外框面垂直、并与所述第二部分302的延伸方向平行的第二限位挡板422。
其中，所述第一限位挡板412卡设在所述第二部分302与所述框架200 的外框面之间，用于在所述第二部分302的延伸方向上及与所述框架200的外框面垂直的方向上对卡勾300进行限位；所述第二限位挡板422卡设在所述第二部分302的靠近或远离所述背板100的底板101的一侧，用于在与所述底板101垂直的方向上对卡勾300进行限位。
采用上述方案，背板100上的卡合部通过第一限位挡板412和第二限位挡板422与框架200上的卡勾300配合，可以实现在所述第二部分302的延伸方向(X向)上、与所述框架200的外框面垂直的方向(Y向)上及与所述底板101垂直的方向上这三个方向(Z向)上来对卡勾300进行限位。
可选的，如图4、图10和图11所示，所述卡合部为一冲压形成于所述背板100的侧壁上，并向所述框架200所在方向凹陷的冲压凹槽结构，所述冲压凹槽结构包括槽底和槽侧壁，其中，所述第一限位挡板412由所述槽底形成，所述第二限位挡板422由所述槽侧壁形成，所述卡孔部401开设于所述槽底上。
采用上述方案，直接通过在背板100的侧壁上冲压形成一冲压凹槽，且卡孔部401开设在该冲压凹槽的槽底，如此，在组装时，框架200上的卡勾300的第二部分302凸出于框架200的外框面上，而冲压凹槽的槽底凹陷于背板100的侧壁，便于框架200的卡勾300在组装时卡入卡孔部401内；并且，第一限位挡板412和第二限位挡板422分别由冲压凹槽的槽底和槽侧壁来形成，结构更为简单，背板100的制造工序也更简单。
当然可以理解的是，以上仅提供了一种背板100上的卡合部的可选结构，在实际应用中，所述卡合部还可以采用其他结构实现，对此并不进行局限。
此外，由于在组装背板100与框架200时，背板100的第一侧壁111和第二侧壁在与框架200的第一外框面211和第二外框面装配好之后，再装配背板100的第三侧壁113与框架200的第三外框面213，此时，需要将背板100向第一侧壁111或第二侧壁方向略微提拉框架200使得框架200上的卡勾300才能卡入背板100第三侧壁113的卡孔部401内。因此，在本公开实施例所提供的背光模组中，可选的，所述卡勾300的第二部分302与所述框架200的外框面之间具有预设距离，且所述预设距离大于所述第一限位挡板412的厚度。
采用上述方案，由于卡勾300的第二部分302与框架200的外框面之间可以预留一定距离，则在组装背板100的第三侧壁113与框架200的第三外框面213时，就便于使得框架200的第三外框面213上的卡勾300卡入背板100的第三侧壁113上的卡孔部401内。
此外，在本实施例中，可选的，所述框架200上卡勾300在其第二部分302的延伸方向上的长度为3mm左右，所述背板100上的卡合部在第二部分302的延伸方向上的长度为7mm左右，略大于卡勾300长度尺寸的2倍为最佳。框架200上的卡勾300的第二部分302与背板100上的卡合部的底面之间的距离约为0.25～0.3mm，略大于背板100的钣金件料厚(背板100钣金件料厚约为0.2mm)。
当然可以理解的是，对于卡勾300以及卡合部的具体尺寸并不做局限，以上仅是一种可选方案。
此外，在本公开的实施例中还提供了一种显示模组，包括如上所述的背光模组。所述显示模组可以包括：液晶显示器、液晶电视、移动终端设备、可穿戴设备等。
以上所述是本公开的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本公开的保护范围。

Claims (10)

  1. 一种背光模组，包括：
    背板，所述背板包括底板及至少一侧壁，所述底板与所述侧壁共同形成一容置空间；
    框架，所述框架至少部分容置于所述底板与所述侧壁形成的容置空间内，所述框架包括与所述背板的侧壁相对设置的至少一个外框面；
    其中，在所述框架的外框面上设有多个卡勾，所述背板的侧壁上设有与多个卡勾对应的多个卡合部；所述卡勾包括与所述框架的外框面连接的第一部分和由所述第一部分弯折延伸形成的第二部分，所述卡合部包括一卡孔部及位于所述卡孔部周围的限位挡板部；其中所述卡勾的第一部分穿装于所述卡孔部内，所述第二部分与所述限位挡板部卡合固定。
  2. 根据权利要求1所述的背光模组，其中，
    位于所述框架的同一外框面上的多个卡勾的第二部分的弯折延伸方向一致；
    在位于所述背板的同一侧壁上的多个卡合部中，所述限位挡板部位于所述卡孔部的同一侧，而与对应的所述卡勾的第二部分位置相对应。
  3. 根据权利要求1所述的背光模组，其中，
    所述背板包括相对设置的第一侧壁和第二侧壁及连接于第一侧壁和第二侧壁之间的第三侧壁；所述框架包括与所述第一侧壁相对的第一外框面、与所述第二侧壁对应的第二外框面及与所述第三侧壁相对的第三外框面；
    其中，在所述第一外框面和所述第二外框面上，各卡勾的第二部分均朝背离所述第三外框面的方向弯折延伸；在所述第三外框面上，各卡勾的第二部分朝所述第一外框面或所述第二外框面所在的方向弯折延伸。
  4. 根据权利要求1所述的背光模组，其中，
    所述限位挡板部包括：与所述框架的外框面平行的第一限位挡板；及与所述框架的外框面垂直、并与所述第二部分的延伸方向平行的第二限位挡板；
    其中，所述第一限位挡板卡设在所述第二部分与所述框架的外框面之间，用于在所述第二部分的延伸方向上及与所述框架的外框面垂直的方向上对卡 勾进行限位；所述第二限位挡板卡设在所述第二部分的靠近或远离所述背板的底板的一侧，用于在与所述底板垂直的方向上对卡勾进行限位。
  5. 根据权利要求4所述的背光模组，其中，所述卡合部为一冲压形成于所述背板的侧壁上并向所述框架所在方向凹陷的冲压凹槽结构，所述冲压凹槽结构包括槽底和槽侧壁，其中，所述第一限位挡板由所述槽底形成，所述第二限位挡板由所述槽侧壁形成，所述卡孔部开设于所述槽底上。
  6. 根据权利要求4所述的背光模组，其中，
    所述卡勾的第二部分与所述框架的外框面之间具有预设距离，且所述预设距离大于所述第一限位挡板的厚度。
  7. 根据权利要求1所述的背光模组，其中，所述卡勾的第一部分能够在所述卡孔部内沿所述第二部分的延伸方向滑动，以使得当背板与框架组装时，所述卡勾的第一部分自所述卡孔部穿过之后在所述卡孔部内滑动，使所述第二部分与所述限位挡板部配合而卡合固定。
  8. 根据权利要求1所述的背光模组，其中，
    所述卡勾为L型卡勾结构，其第一部分和第二部分之间弯折成L型。
  9. 根据权利要求1所述的背光模组，其中，
    所述卡勾与所述框架为一体结构。
  10. 一种显示装置，包括如权利要求1至9任一项所述的背光模组。
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