WO2017041313A1 - 一种背光模组与显示装置 - Google Patents

一种背光模组与显示装置 Download PDF

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Publication number
WO2017041313A1
WO2017041313A1 PCT/CN2015/089532 CN2015089532W WO2017041313A1 WO 2017041313 A1 WO2017041313 A1 WO 2017041313A1 CN 2015089532 W CN2015089532 W CN 2015089532W WO 2017041313 A1 WO2017041313 A1 WO 2017041313A1
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WIPO (PCT)
Prior art keywords
limiting block
backlight module
light guide
guide plate
display device
Prior art date
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Ceased
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PCT/CN2015/089532
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English (en)
French (fr)
Inventor
俞刚
李德华
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US14/888,647 priority Critical patent/US20170168228A1/en
Publication of WO2017041313A1 publication Critical patent/WO2017041313A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • 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
    • 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
    • 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
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • 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
    • G02F1/133553—Reflecting elements
    • 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
    • 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
    • G02F1/133322—Mechanical guidance or alignment of LCD panel support components
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side

Definitions

  • the present invention relates to the field of liquid crystal display technologies, and in particular, to a backlight module and a display device.
  • the present invention provides a backlight module and a display device that are fixed and reliable while facilitating thinning and narrow frame.
  • a backlight module includes a light guide plate and an optical film group stacked on top of each other, and a plurality of limiting blocks, wherein a periphery of the light guide plate has a matching portion with the same number of the limiting blocks, and the limit is The block is fixed to the back of the optical film set and is engaged in the engaging portion.
  • the engaging portions are disposed in pairs on at least two opposite side walls of the light guide plate.
  • the engaging portion is provided with a notch corresponding to the shape of the limiting block, and the limiting block is inserted and held in the notch.
  • the limit block is a rectangle.
  • the limiting block is trapezoidal.
  • the further away from the middle of the light guide plate the smaller the opening of the notch.
  • the height of the limiting block is higher than the engaging portion.
  • peripheral edge of the optical film group is convexly provided with the same number of mounting ears as the limiting block, and the limiting block is pasted on the surface of the mounting ear.
  • Another object of the present invention is to provide a display device including a display panel and the above-described backlight module, and the display panel is disposed on the backlight module.
  • the invention provides a plurality of limiting blocks and a matching engaging portion on the edge of the backlight module, and uses the limiting block to limit the light guiding plate and the optical film group, thereby reducing the reflection sheet, the light guiding plate and the optical
  • the space occupied by the positioning mechanism of the diaphragm group is beneficial to the ultra-thin and ultra-narrow bezel design of the display device, and improves the assembly efficiency of the product.
  • FIG. 1 is an exploded perspective view showing a display device according to a first embodiment of the present invention.
  • Fig. 2 is an enlarged partial view showing the inside of a display device according to Embodiment 1 of the present invention.
  • Fig. 3 is a partially enlarged plan view showing the structure of the display device of the first embodiment of the present invention.
  • FIG. 4 is a partial cross-sectional view showing a display device according to Embodiment 1 of the present invention.
  • Fig. 5 is a partial enlarged view of a display device according to a second embodiment of the present invention.
  • Fig. 6 is a partially enlarged plan view showing the structure of the display device of the third embodiment of the present invention.
  • the display device of the present invention includes a plastic frame 100 , a front frame 200 , a display panel 300 , a back plate 10 , a reflective sheet 20 , a light guide plate 30 , and an optical film set 40 , and the back of the plastic frame 100 and the plastic frame 100 .
  • the board 10, the reflective sheet 20, the light guide plate 30 and the optical film set 40 form part of the backlight module.
  • the display panel 300 is attached to the plastic frame 100.
  • the front frame 200 is covered on the outer surface of the display panel 300 for protection and limitation. effect.
  • the reflective sheet 20, the light guide plate 30 and the optical film group 40 are sequentially stacked on the back plate 10, and the plurality of limiting blocks 1 are fixed on the back of the optical film group 40.
  • light guide plate 30 The engaging portion 31 of the same number as the limiting block 1 is protruded from the periphery, and the limiting block 1 is engaged with the corresponding engaging portion 31.
  • the engaging portions 31 are symmetrically protruded from the opposite side walls of the light guide plate 30 in pairs.
  • a notch 310 conforming to the shape of the limiting block 1 is defined in the engaging portion 31, and the limiting block 1 is inserted and held in the notch 310.
  • the limit block 1 is a regular rectangular block.
  • a lug 41 having the same number as the stopper 1 is protruded from the periphery of the optical film group 40, and the stopper 1 is attached to the surface of the lug 41. Further, the height of the limiting block 1 is higher than the thickness of the engaging portion 31, so that the limiting block 1 does not easily come out after being inserted into the engaging portion 31, and the optical film group 40 and the light guiding plate 30 can be realized well. fit.
  • the limiting block 1 is first attached to the back surface of the mounting ear 41 of the optical film group 40, and then the mounting ears 41 of the optical film group 40 are positioned corresponding to the engaging portions 31 on the light guiding plate 30, and pressed downward.
  • the mounting ears 41 are inserted into the corresponding notches 310 for locking. Since the engaging portions 31 are disposed in pairs, the optical film group 40 is subjected to a certain tension after assembly, and the optical film is ensured. The limit and tension of the group 40 in the horizontal direction.
  • the two can be designed to be very small, and the frame width of the display device is not significantly increased, and is completely It does not affect the thickness of the display device, and therefore, it is advantageous for further narrowing and thinning of the display device.
  • the limiting block 1 of the present embodiment has a trapezoidal shape. Accordingly, the notch 310 of the light guide plate 30 is also trapezoidal, and the further away from the central portion of the light guide plate 30, the notch 310 The smaller the opening. Compared with the rectangular limiting block 1 in the first embodiment, the limiting block 1 of the embodiment has a higher degree of engagement with the notch 310 of the light guide plate 30, and the limiting block 1 is not easily detached.
  • the limiting block 1 of the embodiment is also trapezoidal, but the farther away from the central portion of the light guide plate 30 , the larger the opening of the notch 310 of the light guide plate 30 can also be engaged with the limiting block 1 . effect.
  • the invention provides a plurality of limiting blocks and a matching engaging portion on the edge of the backlight module, and uses the limiting block to limit the light guiding plate and the optical film group, thereby reducing the reflection sheet, the light guiding plate and the optical
  • the space occupied by the positioning mechanism of the diaphragm group is limited by the fixing mechanism of the prior art separately provided
  • the size of the structure of the block and the light guide plate and the optical film group can be further reduced, which is advantageous for the ultra-thin and ultra-narrow frame design of the display device, and improves the assembly efficiency and the fixing reliability of the product.

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

Abstract

一种背光模组和一种显示装置，所述背光模组包括上下堆叠的导光板（30）和光学膜片组（40）以及多个限位块（1），所述导光板（30）的周缘凸设有与所述限位块（1）数量相同的卡合部（31），所述限位块（1）固定在所述光学膜片组（40）背部，并卡合于所述卡合部（31）内。通过在背光模组的边缘设置多个限位块（1）和与之配合的卡合部（31），利用限位块（1）对导光板（30）和光学膜片组（40）进行限位，有利于减少反射片（20）、导光板（30）、光学膜片组（40）的定位机构占用的空间，有利于显示装置的超薄、超窄边框设计，提高了产品的组装效率。

Description

一种背光模组与显示装置 技术领域
本发明涉及液晶显示技术领域，尤其涉及一种背光模组与显示装置。
背景技术
随着液晶显示装置在各个领域的广泛应用，人们对于液晶显示装置的薄型化和窄边框化提出了更高的要求，要求液晶显示模块的厚度尽可能薄、边框尽可能窄。然而，为了对液晶显示装置内的各种零部件进行固定，通常需要在各个零部件上预留用于设计定位结构的空间，难以避免地增加液晶显示装置整体的厚度和宽度。因此，如何对显示装置进行固定的同时不影响其厚度和边框宽度非常重要。
发明内容
鉴于现有技术存在的不足，本发明提供了一种固定可靠的同时有利于实现薄型化和窄边框化的背光模组与显示装置。
为了实现上述的目的，本发明采用了如下的技术方案：
一种背光模组，包括上下堆叠的导光板和光学膜片组以及多个限位块，所述导光板的周缘凸设有与所述限位块数量相同的卡合部，所述限位块固定在所述光学膜片组背部，并卡合于所述卡合部内。
其中，所述卡合部成对设置在所述导光板至少两个相对的侧壁上。
其中，所述卡合部上开设有与所述限位块形状一致的缺口，所述限位块插设并卡持于所述缺口内。
其中，所述限位块为矩形。
或者，所述限位块为梯形。
其中，越远离所述导光板的中部，所述缺口的开口越大。
或者，越远离所述导光板的中部，所述缺口的开口越小。
其中，所述限位块的高度高于所述卡合部。
其中，所述光学膜片组的周缘凸设有与所述限位块数量相同的挂耳，所述限位块粘贴于所述挂耳表面。
本发明的另一目的在于提供一种显示装置，包括显示面板和上述的背光模组，所述显示面板设于所述背光模组上。
本发明通过在背光模组的边缘设置多个限位块和与之配合的卡合部，利用限位块对导光板和光学膜片组进行限位，有利于减少反射片、导光板、光学膜片组的定位机构占用的空间，有利于显示装置的超薄、超窄边框设计，提高了产品的组装效率。
附图说明
图1为本发明实施例1的显示装置的结构分解图。
图2为本发明实施例1的显示装置内部的局部结构放大图。
图3为本发明实施例1的显示装置的结构分解图的局部放大图。
图4为本发明实施例1的显示装置的局部剖视图。
图5为本发明实施例2的显示装置的局部放大图。
图6为本发明实施例3的显示装置的结构分解图的局部放大图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
实施例1
参阅图1，本发明的显示装置包括胶框100、前框200、显示面板300、背板10、反射片20、导光板30和光学膜片组40，胶框100和胶框100内的背板10、反射片20、导光板30和光学膜片组40构成背光模组的一部分，显示面板300贴合在胶框100上，前框200罩设于显示面板300外表面起保护和限位作用。
结合图2～图4所示，背光模组中，背板10上依次堆叠有反射片20、导光板30和光学膜片组40，多个限位块1固定在光学膜片组40的背面，导光板30 的周缘凸设有与限位块1数量相同的卡合部31，限位块1卡合于对应的卡合部31内。
为了保证背光模组内零部件的受力一致，卡合部31成对且对称地凸出于导光板30的两个相对的侧壁上。卡合部31上开设有与限位块1形状一致的缺口310，限位块1插设并卡持于缺口310内。本实施例中，限位块1为规则的矩形块。
在光学膜片组40的周缘凸设有与限位块1数量相同的挂耳41，限位块1粘贴于挂耳41表面。进一步地，限位块1的高度高于卡合部31的厚度，使得限位块1插设在卡合部31内后不会轻易脱出，可以实现光学膜片组40与导光板30的良好贴合。
具体组装时，首先将限位块1粘贴到光学膜片组40的挂耳41背面，然后使光学膜片组40的挂耳41与导光板30上的卡合部31位置对应，向下按压挂耳41，使其背面的各个限位块1插入相应的缺口310内进行卡持，由于卡合部31成对设置，光学膜片组40组装完成后承受一定的张力，保证了光学膜片组40在水平方向的限位和张紧度。
由于仅在光学膜片组40和导光板30的周缘分别凸设便于固定的挂耳41和卡合部31，二者可以设计得非常小，并不会明显增加显示装置的边框宽度，而且完全不会影响显示装置的厚度，因此，有利于显示装置的进一步窄边框化和薄型化。
实施例2
如图5所示，与实施例1不同的是，本实施例的限位块1为梯形，相应地，导光板30的缺口310也为梯形，且越远离导光板30的中部，缺口310的开口越小。与实施例1中矩形的限位块1相比，本实施例的限位块1与导光板30的缺口310卡合程度更高，限位块1不易脱出。
实施例3
如图6所示，本实施例的限位块1也为梯形，但越远离导光板30的中部，导光板30的缺口310的开口越大，同样可以起到与限位块1的卡合效果。
本发明通过在背光模组的边缘设置多个限位块和与之配合的卡合部，利用限位块对导光板和光学膜片组进行限位，有利于减少反射片、导光板、光学膜片组的定位机构占用的空间，与现有技术单独设置固定机构相比，本发明的限 位块及导光板和光学膜片组上与之配合的结构的尺寸可以进一步缩小，有利于显示装置的超薄、超窄边框设计，提高了产品的组装效率以及固定可靠性。
以上所述仅是本申请的具体实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。

Claims (20)

  1. 一种背光模组，其中，包括上下堆叠的导光板和光学膜片组以及多个限位块，所述导光板的周缘凸设有与所述限位块数量相同的卡合部，所述限位块固定在所述光学膜片组背部，并卡合于所述卡合部内。
  2. 根据权利要求1所述的背光模组，其中，所述卡合部成对设置在所述导光板至少两个相对的侧壁上。
  3. 根据权利要求2所述的背光模组，其中，所述卡合部上开设有与所述限位块形状一致的缺口，所述限位块插设并卡持于所述缺口内。
  4. 根据权利要求3所述的背光模组，其中，所述限位块为矩形。
  5. 根据权利要求3所述的背光模组，其中，所述限位块为梯形。
  6. 根据权利要求5所述的背光模组，其中，越远离所述导光板的中部，所述缺口的开口越大。
  7. 根据权利要求5所述的背光模组，其中，越远离所述导光板的中部，所述缺口的开口越小。
  8. 根据权利要求1所述的背光模组，其中，所述限位块的高度高于所述卡合部。
  9. 根据权利要求1所述的背光模组，其中，所述光学膜片组的周缘凸设有与所述限位块数量相同的挂耳，所述限位块粘贴于所述挂耳表面。
  10. 根据权利要求2所述的背光模组，其中，所述光学膜片组的周缘凸设有与所述限位块数量相同的挂耳，所述限位块粘贴于所述挂耳表面。
  11. 一种显示装置，其中，包括显示面板和背光模组，所述显示面板设于所述背光模组上；所述背光模组包括上下堆叠的导光板和光学膜片组以及多个限位块，所述导光板的周缘凸设有与所述限位块数量相同的卡合部，所述限位块固定在所述光学膜片组背部，并卡合于所述卡合部内。
  12. 根据权利要求11所述的显示装置，其中，所述卡合部成对设置在所述导光板至少两个相对的侧壁上。
  13. 根据权利要求12所述的显示装置，其中，所述卡合部上开设有与所述限位块形状一致的缺口，所述限位块插设并卡持于所述缺口内。
  14. 根据权利要求13所述的显示装置，其中，所述限位块为矩形。
  15. 根据权利要求13所述的显示装置，其中，所述限位块为梯形。
  16. 根据权利要求15所述的显示装置，其中，越远离所述导光板的中部，所述缺口的开口越大。
  17. 根据权利要求15所述的显示装置，其中，越远离所述导光板的中部，所述缺口的开口越小。
  18. 根据权利要求11所述的显示装置，其中，所述限位块的高度高于所述卡合部。
  19. 根据权利要求11所述的显示装置，其中，所述光学膜片组的周缘凸设有与所述限位块数量相同的挂耳，所述限位块粘贴于所述挂耳表面。
  20. 一种显示装置，其中，包括显示面板和背光模组，所述显示面板设于所述背光模组上；所述背光模组包括上下堆叠的导光板和光学膜片组以及多个限位块，所述导光板的周缘凸设有与所述限位块数量相同的卡合部，所述限位块为梯形，固定在所述光学膜片组背部，所述卡合部上开设有与所述限位块形状一致的缺口，且越远离所述导光板的中部，所述缺口的开口越小，所述限位块插设并卡持于所述缺口内。
PCT/CN2015/089532 2015-09-09 2015-09-14 一种背光模组与显示装置 Ceased WO2017041313A1 (zh)

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