WO2017041462A1 - 框架及应用该框架的背光源 - Google Patents

框架及应用该框架的背光源 Download PDF

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Publication number
WO2017041462A1
WO2017041462A1 PCT/CN2016/076055 CN2016076055W WO2017041462A1 WO 2017041462 A1 WO2017041462 A1 WO 2017041462A1 CN 2016076055 W CN2016076055 W CN 2016076055W WO 2017041462 A1 WO2017041462 A1 WO 2017041462A1
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WO
WIPO (PCT)
Prior art keywords
frame
short
long
bezel
backlight
Prior art date
Application number
PCT/CN2016/076055
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English (en)
French (fr)
Inventor
张启平
孙文波
李焱锋
刘同敏
王兴
杨阳
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
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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 US15/512,096 priority Critical patent/US10047933B2/en
Publication of WO2017041462A1 publication Critical patent/WO2017041462A1/zh

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    • 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
    • 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
    • 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
    • F21V17/08—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages onto the supporting or suspending arrangements of the lighting device, e.g. power cords, standards
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • 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
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame

Definitions

  • the present disclosure relates to the field of display technologies, and in particular, to a frame and a backlight to which the frame is applied.
  • a Back Light is a light source located on the back of a liquid crystal display (LCD).
  • LCD liquid crystal display
  • the backlight includes a back plate 1, a frame (for example, a plastic frame) 2, a reflection sheet 3, a light guide plate 4, and an optical film 5.
  • the reflection sheet 3 is first assembled in the inner cavity of the back sheet 1, and then the light guide plate 4 is assembled on the reflection sheet 3 by fixing tape, and then between the back sheet 1 and the frame 2
  • a plurality of engagement points (shown as circled areas in FIG. 1) combine the back panel 1 with the frame 2.
  • the frame 2 has a boss which is provided at the edge of the light guide plate 4 for fixing the light guide plate 4 to the reflection sheet 3.
  • the number of engagement points between the backboard 1 and the frame 2 is large (usually about 13 to 15). This makes the loading and unloading process cumbersome and time consuming, resulting in inefficient assembly. Moreover, the thickness of the frame 2 is relatively thin, and the material of the back plate 1 is relatively soft (e.g., A1). Therefore, during the loading and unloading process, a large number of engaging points easily cause deformation of the backboard 1 and the frame 2, resulting in damage to the backlight. In addition, the number of the engaging points is large, and it is prone to leakage or de-carding, resulting in a partial convexity of the flat bearing surface on the frame 1. After the assembly of the display screen is completed, it is easy to cause partial breakage of the glass screen, thereby reducing the yield.
  • the frame simplifies the structure and saves loading and unloading time. Therefore, not only the assembly efficiency can be improved, the processing difficulty can be reduced, and the partial breakage of the glass panel caused by the leakage or the removal of the card can be effectively prevented.
  • the present disclosure provides a frame for fixing a corresponding component of a backlight to a rectangular back plate.
  • the frame includes a long frame and two short frames respectively corresponding to one long side and two short sides of the rectangular back plate; the long frame has a first curved shape
  • the first curved structure is configured such that a center position of the long frame is bent inward with respect to both ends of the long frame; each of the short frames has a second curved structure, the first
  • the two curved structures are disposed such that both ends of the short frame are bent inward with respect to a center position of the short frame; a center position of the long frame and a position close to the two ends are respectively provided for
  • the rectangular connecting plate is engaged with the first connecting member, and a first connecting member for engaging with the rectangular back plate is respectively disposed at a central position of each of the short bezels and a position close to the two end portions.
  • the first curved structure of the long bezel is symmetrical with respect to the center of the long bezel.
  • the second curved structure of the short frame is divided into an intermediate segment and an edge segment on both sides of the intermediate segment, wherein the intermediate segment is linear; the edge segment is inward relative to the intermediate segment Bend.
  • the second curved structure of the short frame is symmetrical with respect to the center of the short frame.
  • the intermediate section forms an angle of 170 to 175° with the edge section bent inward.
  • the central position of the inwardly bent of the long bezel forms an angle of 160 to 170 degrees.
  • the three first connecting members on the long bezel are evenly distributed in the length direction of the long bezel; the three first connecting members on each of the short bezels are in the length direction of the short bezel Evenly distributed.
  • a boss is disposed on the long frame and the two short frames to The components of the backlight are fixed.
  • the present disclosure also provides a backlight including a rectangular back plate and a frame for fixing components of the backlight to the rectangular back plate.
  • the frame employs the above-described framework provided by the present disclosure.
  • the components of the backlight comprise a reflective sheet, a light guide plate and an optical film which are sequentially disposed in the inner cavity of the rectangular back plate.
  • the frame provided by the present disclosure has a long frame and two short frames, wherein the long frame has a first arc structure that is set to be bent inwardly at a central position, and the short frame has a second arc that is set to be bent inward at both ends. And a first connecting member for engaging with the rectangular back plate at a central position of the long bezel and the short bezel and a position close to the two end portions. Therefore, when assembling a component of a backlight (for example, including a reflective sheet, a light guide plate, and an optical film), the long bezel and the two short bezels can be subjected to a force toward the backing plate.
  • a component of a backlight for example, including a reflective sheet, a light guide plate, and an optical film
  • the frame provided by the present disclosure can ensure the connection stability between the frame and the rectangular backboard, and can reduce the number of connectors while achieving the same effect as the prior art, thereby Simplify the structure and save loading and unloading time. Therefore, not only the assembly efficiency can be improved, the processing difficulty can be reduced, and the partial breakage of the glass panel caused by the leakage or the removal of the card can be effectively prevented.
  • the backlight provided by the present disclosure adopts the frame having the above configuration, so that the structure can be simplified, the loading and unloading time can be saved, and the assembly efficiency can be improved, the processing difficulty can be reduced, and the yield can be improved.
  • FIG. 1 is a partial cross-sectional view of a conventional backlight
  • FIG. 2 is a schematic structural diagram of a frame according to an embodiment of the present disclosure
  • Figure 3 is an enlarged view of the I area of Figure 2;
  • Figure 4 is an enlarged view of the II region of Figure 2;
  • FIG. 5 is a schematic view of a frame and a backboard before being engaged according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of a frame and a backboard after being engaged according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic structural diagram of a frame according to an embodiment of the present disclosure.
  • Fig. 3 is an enlarged view of a region I in Fig. 2.
  • 4 is an enlarged view of a region II in FIG. 2.
  • the present disclosure provides a frame for securing components of a backlight (e.g., including a reflective sheet, a light guide, and an optical film) to a rectangular backing.
  • the frame includes a long bezel 11 and short bezels 12, 13 on either side of the long bezel 11.
  • the long bezel 11 and the two short bezels 12, 13 respectively correspond to one long side and two short sides of the rectangular back plate.
  • the long bezel 11 has a first curved structure.
  • the first curved structure is disposed such that a center position of the long bezel 11 is bent inward with respect to both ends of the long bezel 11.
  • Each short frame has a second curved structure.
  • the second curved structure is configured such that both ends of the short frame are bent inward with respect to a center position of the short frame.
  • the first connecting member 14 is provided at a center position of the long bezel 11 and a position close to both end portions, respectively.
  • the first connecting member 14 is for snap-fit connection with a rectangular back plate.
  • a first connecting member 15 is provided at a center position of each of the short frames 12, 13 and a position close to both end portions.
  • the first connecting member 15 is for snap-fit connection with a rectangular back plate.
  • FIG. 5 is a schematic diagram of a frame and a backboard before being engaged according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a frame and a backboard after being engaged according to an embodiment of the present disclosure.
  • each short frame is elastically deformed.
  • the short frame is aligned with the two short sides of the rectangular back plate 21. That is to say, the short frames 12, 13 are converted from the original curved structure into a linear structure and completely conform to the short sides of the back plate 21.
  • first connectors 14 and 15 may be protrusions
  • the second connectors 22 and 23 may be grooves that can be engaged with the protrusions; or the second connectors 22 and 23 may be protrusions
  • a connector 14 and 15 can be a recess that can engage the projection.
  • the first connectors 14, 15 and the second connectors 22, 23 can also be any device known to those skilled in the art that can be connected to each other.
  • the long bezel 11 and the two short bezels 12, 13 are both subjected to the force toward the backing plate 21 when the components of the backlight are assembled (for example, including the reflective sheet, the light guide plate, and the optical film) (as indicated by the arrow in FIG. 5) Therefore, the long bezel 11 and the two short bezels 12, 13 are elastically deformed to be in contact with the backing plate 21. With this force, the frame can securely hold the components of the backlight.
  • a plurality of first connecting members of the frame in the embodiment, the long frame and the short frame are both provided with three first connecting members) and the second connecting members of the back plates 21 respectively, the frame and the back plate can be ensured. Connection stability between 21.
  • the number of the joints can be reduced while achieving the same effect as the prior art, so that the structure can be simplified, and the loading and unloading time can be saved. Therefore, not only the assembly efficiency can be improved, the processing difficulty can be reduced, and the partial breakage of the glass panel caused by the leakage or the removal of the card can be effectively prevented.
  • the first curved structure of the long bezel 11 is symmetrical with respect to the center of the long bezel 11.
  • a uniform force can be applied between the long bezel 11 and the backing plate 21, thereby facilitating the connection stability of the backing plate 21 and the frame.
  • the second curved structure of the short frames 12, 13 can be divided into intermediate segments. And edge segments located on either side of the middle segment.
  • the intermediate section is generally rectilinear and the edge section is bent inwardly relative to the intermediate section.
  • the intermediate sections of the short frames 12, 13 are substantially linear so as to be conformable to the backing plate 21; and the edge sections of the short frames 12, 13 are bent inwardly with respect to the intermediate section.
  • the second curved structure of the short frames 12, 13 is symmetrical with respect to the center of the short frame.
  • the angle formed by the intermediate portion and the inwardly bent edge portion is about 170 to 175 degrees.
  • the central portion is bent inward to form an angle of about 160 to 170 degrees.
  • the three first connecting members 14 on the long bezel 11 are evenly distributed in the longitudinal direction of the long bezel 11; similarly, three on each of the short bezels 12, 13 The first connectors 15 are evenly distributed in the length direction of the short frame.
  • bosses are provided on the long bezel 11 and the two short bezels 12, 13 to fix the components of the backlight.
  • the present disclosure also provides a backlight including a rectangular back plate and a frame.
  • the frame is the above-described frame provided by an embodiment of the present disclosure for fixing components of a backlight (for example, including a reflective sheet, a light guide plate, and an optical film) on a rectangular back plate.
  • the components of the backlight include a reflective sheet, a light guide plate, and an optical film, which are sequentially disposed in the inner cavity of the rectangular back plate.
  • the backlight may also include other components as needed.
  • the structure can be simplified, and the loading and unloading time can be saved. Therefore, not only the assembly efficiency can be improved, the processing difficulty can be reduced, but also the yield can be improved.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

一种框架及应用该框架的背光源，框架包括一条长边框(11)和位于所述长边框(11)两侧的短边框(12)，长边框(11)和两条短边框(12)分别与矩形背板的一条长边和两条短边相对应；长边框(11)具有第一弧形结构(I)，第一弧形结构(I)被设置为，长边框(11)的中心位置相对于长边框(11)的两端向内弯折；每条短边框(12)具有第二弧形结构(II)，第二弧形结构(II)被设置为，短边框(12)的两端相对于短边框(12)的中心位置向内弯折；在长边框(11)和短边框(12)各自的中心位置和靠近两个端部的位置均设置有用于与矩形背板卡合的第一连接件。该框架可以简化结构，提高组装效率，防止因漏卡或脱卡造成的玻璃屏局部破碎。

Description

框架及应用该框架的背光源 技术领域
本公开涉及显示技术领域，尤其涉及一种框架以及应用该框架的背光源。
背景技术
背光源(Back Light)是位于液晶显示器(LCD)背面的光源。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，这就意味着背光源的品质必须进一步提升。
图1为现有的背光源的局部剖面图。如图1所示，背光源包括背板1、框架(例如，胶框)2、反射片3、导光板4和光学膜片5。在组装背光源的过程中，首先将反射片3组装在背板1的内腔中，之后利用固定胶带将导光板4组装在反射片3之上，接着利用背板1与框架2之间的多个卡合点(如图1中的圆圈区域所示)将背板1与框架2组合在一起。框架2具有凸台，该凸台设置在导光板4的边缘，用于将导光板4固定在反射片3上。
上述背光源在实际应用中不可避免地存在以下问题：
其一，背板1与框架2之间的卡合点数量较多(通常在13～15个左右)。这使得装卸过程十分繁琐，费时费力，从而造成组装效率低下。而且，框架2的厚度较薄，背板1的材料较软(如A1)。因此，在装卸过程中，数量较多的卡合点容易导致背板1和框架2变形，造成背光源损坏。此外，卡合点数量较多，容易出现漏卡或者脱卡，导致框架1上的平板承载面局部凸起。在完成显示屏的组装之后，容易造成玻璃屏局部破碎，从而降低成品率。
其二，在对框架2和背板1的模具开模过程中，框架2和背板1上的卡合点数量越多，模具的结构越复杂。因此，现有技术的框架2和背板1的加工难度较高，从而增加了背光源的制造成本。
发明内容
本公开的目的在于提供一种框架及应用该框架的背光源。框架可以简化结构，节省装卸时间。因此，不仅可以提高组装效率，降低加工难度，而且可以有效防止因漏卡或脱卡而造成的玻璃屏局部破碎。
为解决上述技术问题，本公开提供一种框架，用于将背光源的相应部件固定在矩形背板上。所述框架包括一条长边框和两条短边框，所述长边框和两条短边框分别与所述矩形背板的一条长边和两条短边相对应；所述长边框具有第一弧形结构，所述第一弧形结构被设置为：所述长边框的中心位置相对于所述长边框的两端向内弯折；每条所述短边框具有第二弧形结构，所述第二弧形结构被设置为：所述短边框的两端相对于所述短边框的中心位置向内弯折；在所述长边框的中心位置和靠近两个端部的位置分别设置有用于与所述矩形背板卡合的第一连接件，并且在每一条短边框的中心位置和靠近两个端部的位置均分别设置有用于与所述矩形背板卡合的第一连接件。
优选的，所述长边框的第一弧形结构相对于所述长边框的中心对称。
优选的，所述短边框的第二弧形结构分成中间段和位于所述中间段两侧的边缘段，其中，所述中间段呈直线形；所述边缘段相对于所述中间段向内弯折。
优选的，所述短边框的第二弧形结构相对于所述短边框的中心对称。
优选的，所述中间段与向内弯折的所述边缘段所形成的夹角为170～175°。
优选的，所述长边框的向内弯折的中心位置所形成的夹角为160～170°。
优选的，所述长边框上的三个第一连接件在所述长边框的长度方向上均匀分布；每一条所述短边框上的三个第一连接件在所述短边框的长度方向上均匀分布。
优选的，在所述长边框和两条所述短边框上均设置有凸台，以 便固定所述背光源的部件。
作为另一个技术方案，本公开还提供了一种背光源，包括矩形背板和框架，所述框架用于将所述背光源的部件固定在所述矩形背板上。所述框架采用了本公开提供的上述框架。
优选的，所述背光源的部件包括依次设置在矩形背板的内腔中的反射片、导光板和光学膜片。
本公开的实施方式具有以下有益效果：
本公开提供的框架具有一条长边框和两条短边框，其中长边框具有设置成中心位置向内弯折的第一弧形结构，短边框具有设置成两端位置向内弯折的第二弧形结构，并且在长边框和短边框各自的中心位置和靠近两个端部的位置设置用于与矩形背板卡合的第一连接件。因此，在装配背光源的部件(例如，包括反射片、导光板和光学膜片)时，长边框和两条短边框可以受到朝向背板的作用力。借助这种作用力，长边框和两条短边框可以发生弹性形变而与背板向贴合，同时可以牢固地固定背光源的部件。此外，与现有技术相比，本公开提供的框架可以在保证框架与矩形背板之间的连接稳定性，并且可以在达到与现有技术相同效果的同时，减少连接件的数量，从而可以简化结构，节省装卸时间。因此，不仅可以提高组装效率，降低加工难度，而且可以有效防止因漏卡或脱卡而造成的玻璃屏局部破碎。
本公开提供的背光源采用具有上述构造的框架，因此可以简化结构，节省装卸时间，从而不仅可以提高组装效率，降低加工难度，而且还可以提高成品率。
附图说明
附图是用来提供对本公开的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本公开，但并不构成对本公开的限制。
图1为现有的背光源的局部剖面图；
图2为本公开实施例提供的框架的结构示意图；
图3为图2中的I区域的放大图；
图4为图2中的II区域的放大图；
图5为本公开实施例提供的框架与背板在卡合之前的示意图；
图6为本公开实施例提供的框架与背板在卡合之后的示意图。
具体实施方式
以下结合附图对本公开的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本公开，并不用于限制本公开。
图2为本公开实施例提供的框架的结构示意图。图3为图2中的I区域的放大图。图4为图2中的II区域的放大图。请一并参阅图2-图4，本公开提供的一种框架用于将背光源的部件(例如，包括反射片、导光板和光学膜片)固定在矩形背板上。该框架包括一条长边框11和位于长边框11两侧的短边框12、13。长边框11和两条短边框12、13分别与矩形背板的一条长边和两条短边相对应。并且，长边框11具有第一弧形结构。该第一弧形结构被设置为：长边框11的中心位置相对于长边框11的两端向内弯折。每条短边框具有第二弧形结构。该第二弧形结构被设置为：短边框的两端相对于短边框的中心位置向内弯折。而且，如图3所示，在长边框11的中心位置和靠近两个端部的位置分别设置有第一连接件14。该第一连接件14用于与矩形背板卡合连接。与之相类似的，如图4所示，在每一条短边框12、13的中心位置和靠近两个端部的位置均设置有第一连接件15。该第一连接件15用于与矩形背板卡合连接。
图5为本公开实施例提供的框架与背板在卡合前的示意图。图6为本公开实施例提供的框架与背板在卡合后的示意图。请一并参阅图5和图6，在框架与背板21卡合之前，由于长边框11的中心位置相对于长边框11的两端向内弯折，这使得长边框11的中心位置与背板21之间具有间隙，然而，如图5所示，由于长边框11的中心位置相对于长边框11的两端向内弯折，长边框11的两侧部分与背板21相贴合。同时，如图5所示，由于短边框的两端相对于短边框的中心位 置向内弯折，这使得短边框的靠近其中心位置处的部分与背板21相贴合，而靠近其两端的部分与背板之间具有间隙。当将第一连接件14与背板21上的第二连接件22卡合时，长边框11产生弹性形变。此时，如图6所示，长边框11与矩形背板21的长边对齐。也就是说，长边框11由原来的弧形结构转变为直线形结构并与背板21的长边完全贴合。当分别将两个短边框12、13的第一连接件15与背板21上的第二连接件23卡合时，每个短边框产生弹性形变。此时，如图6所示，短边框与矩形背板21的两条短边对齐。也就是说，短边框12、13由原来的弧形结构转变为直线形结构并与背板21的短边完全贴合。
在本公开的实施例中，第一连接件14和15可以是突起，第二连接件22和23可以是能够与该突起配合的凹槽；或者第二连接件22和23可以是突起，第一连接件14和15可以是能够与该突起配合的凹槽。当然，第一连接件14、15和第二连接件22、23也可以是本领域技术人员已知的能够相互连接的任何装置。
由于在装配背光源的部件(例如，包括反射片、导光板和光学膜片)时长边框11和两条短边框12、13均受到朝向背板21的作用力(如图5中的箭头所示)，因此长边框11和两条短边框12、13发生弹性形变而与背板21贴合。借助这种作用力，框架可以牢固地固定背光源的部件。另外，由于框架的若干第一连接件(在实施例中，长边框和短边框均设置有3个第一连接件)与分别背板21的第二连接件卡合，可以保证框架与背板21之间的连接稳定性。根据本公开的实施方式，可以在达到与现有技术相同效果的同时，减少连接件的数量，从而可以简化结构，节省装卸时间。因此，不仅可以提高组装效率，降低加工难度，而且可以有效防止因漏卡或脱卡而造成的玻璃屏局部破碎。
优选的，长边框11的第一弧形结构相对于长边框11的中心对称。这样，在框架与背板21卡合之后，均匀的作用力可以施加在长边框11与背板21之间，从而有利于背板21和框架的连接稳定性。
在本实施例中，短边框12、13的第二弧形结构可以分成中间段 和位于该中间段两侧的边缘段。中间段大致呈直线形状，而边缘段相对于中间段向内弯折。具体地说，如图5所示，短边框12、13的中间段大致呈直线形状，从而能够与背板21相贴合；而短边框12、13的边缘段相对于中间段向内弯折，从而与背板21之间具有间隙。优选的，短边框12、13的第二弧形结构相对于短边框的中心对称。这样，在框架与背板21卡合之后，均匀的作用力可以施加在短边框12、13与背板21之间，从而有利于背板21和框架的连接稳定性。
优选的，对于短边框12、13的第二弧形结构，其中间段与向内弯折的边缘段所形成的夹角大约为170～175°。对于长边框11的第一弧形结构，其中心位置向内弯折所形成的夹角大约为160～170°。
优选的，为了获得更稳定的固定效果，长边框11上的三个第一连接件14在长边框11的长度方向上均匀分布；与之相类似的，每一条短边框12、13上的三个第一连接件15在短边框的长度方向上均匀分布。
在本实施例中，在长边框11和两条短边框12、13上均设置有凸台(图中未示出)，以便固定背光源的部件。
作为另一个技术方案，本公开还提供一种背光源，包括矩形背板和框架。。框架为本公开实施例提供的上述框架，用于将背光源的部件(例如，包括反射片、导光板和光学膜片)固定在矩形背板上。
背光源的部件包括反射片、导光板和光学膜片，这些部件依次设置在矩形背板的内腔中。当然，在实际应用中，根据需要，背光源还可以包括其他部件。
因为在本公开实施例提供的背光源中采用了上述框架，所以可以简化结构，节省装卸时间。因此不仅可以提高组装效率，降低加工难度，而且还可以提高成品率。
可以理解的是，以上实施方式仅仅是为了说明本公开的原理而采用的示例性实施方式，然而本公开并不局限于此。对于本领域内的普通技术人员而言，在不脱离本公开的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本公开的保护范围。

Claims (10)

  1. 一种框架，用于将背光源的部件固定在矩形背板上，其特征在于，
    所述框架包括一条长边框和位于所述长边框两侧的短边框，所述长边框和两条短边框分别与所述矩形背板的一条长边和两条短边相对应；
    所述长边框具有第一弧形结构，所述第一弧形结构被设置为：所述长边框的中心位置相对于所述长边框的两端向内弯折；
    每条所述短边框具有第二弧形结构，所述第二弧形结构被设置为：所述短边框的两端相对于所述短边框的中心位置向内弯折；
    在所述长边框的中心位置和靠近两个端部的位置分别设置有用于与所述矩形背板卡合的第一连接件，并且在每一条短边框的中心位置和靠近两个端部的位置均分别设置有用于与所述矩形背板卡合的第一连接件。
  2. 根据权利要求1所述的框架，其特征在于，
    所述长边框的第一弧形结构相对于所述长边框的中心对称。
  3. 根据权利要求1所述的框架，其特征在于，
    所述短边框的第二弧形结构分成中间段和位于所述中间段两侧的边缘段，其中，
    所述中间段呈直线形；
    所述边缘段相对于所述中间段向内弯折。
  4. 根据权利要求3所述的框架，其特征在于，
    所述短边框的第二弧形结构相对于所述短边框的中心对称。
  5. 根据权利要求3所述的框架，其特征在于，
    所述中间段与向内弯折的所述边缘段所形成的夹角为170～175°。
  6. 根据权利要求1所述的框架，其特征在于，
    所述长边框的向内弯折的中心位置所形成的夹角为160～170°。
  7. 根据权利要求1所述的框架，其特征在于，
    所述长边框上的三个第一连接件在所述长边框的长度方向上均匀分布；
    每一条所述短边框上的三个第一连接件在所述短边框的长度方向上均匀分布。
  8. 根据权利要求1所述的框架，其特征在于，
    在所述长边框和两条所述短边框上均设置有凸台，以便固定所述背光源的部件。
  9. 一种背光源，包括矩形背板和框架，所述框架用于将所述背光源的部件固定在所述矩形背板上，其特征在于，所述框架为根据权利要求1-8中任意一项所述的框架。
  10. 根据权利要求9所述的背光源，其特征在于，
    所述背光源的部件包括依次设置在矩形背板的内腔中的反射片、导光板和光学膜片。
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