WO2020258599A1 - 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
WO2020258599A1
WO2020258599A1 PCT/CN2019/111605 CN2019111605W WO2020258599A1 WO 2020258599 A1 WO2020258599 A1 WO 2020258599A1 CN 2019111605 W CN2019111605 W CN 2019111605W WO 2020258599 A1 WO2020258599 A1 WO 2020258599A1
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WIPO (PCT)
Prior art keywords
substrate
display device
backlight module
opening
cavity
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/CN2019/111605
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English (en)
French (fr)
Inventor
周政
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US16/625,736 priority Critical patent/US11300831B2/en
Publication of WO2020258599A1 publication Critical patent/WO2020258599A1/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
    • 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
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • 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
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses

Definitions

  • the invention relates to the field of backlights, in particular to a backlight module and a display device.
  • the current LCD backlight system is divided into direct-type and side-type.
  • the LED backlight of the direct-type is installed directly under the liquid crystal panel, that is, on the back cover of the LCD display device, with an optical cavity in between.
  • the uniformity of light emission is achieved by changing the distance between the LED luminous bodies and the thickness of the optical cavity.
  • the side entry type is to place the LED luminous body on the side of the liquid crystal panel, and diffuse the light to the liquid crystal panel through the light guide plate.
  • direct backlight module can reduce the volume of the entire backlight module.
  • the direct-lit backlight is limited by the light source structure and heat dissipation conditions, and the conventional side-emitting light source structure fixing solution (conventional side-emitting backlight) is no longer applicable.
  • the present invention provides a backlight module and a display device to solve the problem that the structure fixing solution of the side-emitting light source cannot be guaranteed in the prior art to fix the direct light source backlight.
  • a backlight module including a substrate with a bottom surface; at least two openings, both of which are provided on the peripheral side of the substrate and penetrate the entire substrate; a plastic frame, which surrounds and is sealed in The peripheral side of the substrate; the plastic frame is provided with a corresponding claw hook at the opening, the claw hook passes through the opening from the side facing away from the bottom surface of the substrate and is hooked to the bottom surface of the substrate .
  • the backlight module further includes a sealant layer, sealed in the gap and extending to the bottom surface.
  • the backlight module further includes a plurality of LED lamp beads, which are evenly arranged on the side of the substrate away from the bottom surface.
  • the claw hook is made of elastic plastic material.
  • the plastic frame is provided with a cavity corresponding to the opening, the cavity has a bottom surface;
  • the claw hook includes a connecting part and a hook part, and the connecting part connects the bottom surface and the Hook; wherein there is a gap between the substrate and the bottom surface
  • the present invention also provides a display device including the backlight module.
  • the plastic frame is correspondingly arranged in the non-display area.
  • the side of the plastic frame away from the back plate is provided with a step structure, and the step structure faces the display area;
  • the display device further includes a diffusion layer and a display panel, which are respectively mounted on the step structure .
  • the step structure includes a first step, a second step, and a third step, which are sequentially arranged from the side close to the display area to the side far away from the display area;
  • the first step; the display panel is provided on the second step.
  • the thickness of the diffusion layer is less than the height of the second step, and the height of the display panel is less than the height of the third step.
  • the backlight module and display device of the present invention seal and cover the plastic frame on the side of the substrate to protect the electrical components in the substrate and prevent light leakage.
  • a plastic frame is provided at the corresponding through hole.
  • the claw hook penetrates the through hole and hooks the substrate to achieve the purpose of fixing the substrate and the plastic frame.
  • a layer of glue is sealed at the junction of the claw hook and the through hole to prevent light leakage and water vapor intrusion.
  • the plastic frame adopts The stepped design, by placing the diffuser plate and the display panel on different steps, not only ensures the distance between the diffuser plate and the display panel, but also effectively prevents light leakage.
  • FIG. 1 is a partial schematic diagram of the backlight module in the first embodiment.
  • FIG. 2 is a schematic diagram of the display device in the second embodiment.
  • Example 3 is a schematic diagram of the size of the claw hook in Example 1.
  • FIG. 4 is a partial schematic diagram of the claw hook in Embodiment 1.
  • FIG. 4 is a partial schematic diagram of the claw hook in Embodiment 1.
  • the backlight module 10 of the present invention includes a substrate 110 and a plastic frame 120.
  • the substrate 110 has a bottom surface 1101, wherein the substrate 110 is provided with at least two openings 111.
  • the openings 111 are symmetrically distributed on the substrate 110. On both sides.
  • the substrate 110 includes a display area 1102 and a non-display area 1103 surrounding the display area 1102.
  • a number of LED lamp beads 11021 are provided in the display area 1102, and the LED lamp beads 11021 are evenly distributed in the display area 1102 , Used to provide a stable light source.
  • the plastic frame 120 surrounds the peripheral side of the substrate 110 and covers the non-display area 1103 for sealing the substrate 110 to prevent light leakage.
  • the plastic frame 120 is correspondingly provided with a claw hook 121, the claw hook 121 is made of elastic plastic material, which can be deformed by external force , Without applying external force, the claw hook 121 can be restored to the initial state.
  • the plastic frame 120 is provided with a cavity 1201 corresponding to the opening 111, and the cavity 1202 has a cavity bottom surface 12011;
  • the claw hook 121 has a connecting portion 1211 and a hook portion 1212, and the connecting portion 1211 penetrates the opening 111 to connect the cavity bottom surface 12011 and the hook portion 1212, wherein the plastic frame 120 corresponds to A gap is provided at the opening 111 to facilitate the assembly of the substrate 110 and the claw hook 121, and at the same time, it is convenient to deform the hook portion 1212 of the claw hook 121 to pass through the opening 111 and be hooked to The bottom surface 1101 of the substrate 110.
  • the width of the hook portion 1212 is A
  • the sum of the width of the hook portion 1212 and the connecting portion 1211 is B
  • the shortest distance between the connecting portion 1211 and the opening 111 is C
  • the width of the opening 111 is D.
  • the sum of the width of the hook portion 1212 and the connecting portion 1211 is B ⁇
  • the width D of the opening 111 is so that the hook is slightly deformed to extend into the opening, the width A of the hook portion 1212>
  • the shortest distance C between the connecting portion 1211 and the opening 111 so that the hook can pass After the hole 111 is opened, the substrate 110 is hooked.
  • the fitting of the claw hook 121 and the opening 111 is a clearance fit, which does not require high precision, can be widely produced, and saves costs.
  • a sealant layer 1111 is further included.
  • the sealant layer 1111 seals the hook portion 1212 and the gap between the opening 111.
  • the display device of the present invention includes the backlight module 10 in Embodiment 1, and further includes a diffusion layer 20 and a display panel 30.
  • the plastic frame 120 further includes a step structure 122, which is provided on the side of the substrate 110 away from the bottom surface 1101, namely Towards the display area 1102, specifically, the step structure 122 includes a first step 1221, a second step 1222, and a third step.
  • the first step 1221 is provided inside the plastic frame 120, that is, on the side close to the display area 1102.
  • the first step 1221 includes a first plane 12211 and a second plane 12212, wherein the first plane 12211 is Horizontal plane, the second plane 12212 is the opposite surface of the first plane 12211, and the angle between it and the first plane 12211 is greater than 90 degrees and less than 180 degrees, ensuring the stability of the first step 1221 and facilitating processing
  • the first step structure 1221 is provided inside the plastic frame 120, that is, on the side close to the display area 1102.
  • the first step 1221 includes a first plane 12211 and a second plane 12212, wherein the first plane 12211 is Horizontal plane, the second plane 12212 is the opposite surface of the first plane 12211, and the angle between it and the first plane 12211 is greater than 90 degrees and less than 180 degrees, ensuring the stability of the first step 1221 and facilitating processing
  • the first step structure 1221 is provided inside the plastic frame 120, that is, on the side close to the display area
  • the diffusion layer 20 is disposed on the first plane 12211 of the first step 1221, and is used to diffuse the light emitted from the LED lamp bead 11021 to make the light softer and more uniform.
  • the first step 1221, the second step 1222, and the third step are stepped, wherein the second step 1222 includes a third plane 12221 and a fourth plane 12222, and the third plane 12221 is The second plane 12212 is opposite to each other, and the included angle is greater than 90 degrees and less than 180 degrees, and the fourth plane 12222 is parallel to the first plane 12211.
  • the display panel 30 is disposed on the fourth plane 12222.
  • the fourth plane 12222 and the first plane The height difference of 12211 is greater than the thickness of the diffusion layer 20, and the thickness of the display panel 30 is less than the thickness of the third step.

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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)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

一种背光模组（10）及显示装置，背光模组（10）包括基板（110），具有一底面（1101）；至少两个开孔（111），均设于基板（110）的周侧且贯穿整个基板（110）；胶框（120），围绕并密封于基板（110）周侧；胶框（120）在开孔（111）处设有对应的爪勾（121），爪勾（121）从背离基板（110）底面（1101）的一面穿过开孔（111）并勾接于基板（110）的底面（1101）。

Description

一种背光模组及显示装置 技术领域
本发明涉及背光领域，特别涉及一种背光模组及显示装置。
 背景技术
随着汽车行业的飞速发展，传统的汽车构造已经被逐渐淘汰。新型汽车中，每辆车内搭载液晶显示装置已成主流趋势。而由于车辆在户外行驶，受到户外的光照等环境影响较大，液晶显示装置需要具备较高的亮度才能够保证其显示画面的能力和品质，其中对于高对比度，低功耗local diming(分区控制)等要求也越来越高，目前较前沿的技术是采用直下式光源的背光（mini LED/带lens LED）来达到这种需求。
现行的LCD背光系统分为直下式和侧入式，直下式其LED背光源安装在液晶面板的正下方即LCD显示设备的后盖板上，二者之间为光学腔体。通过改变LED发光体之间的间距、光学腔体的厚度来实现发光的均匀性。侧入式是将LED发光体放置在液晶面板的侧面，通过导光板将光线散射到液晶面板。
现阶段车载触摸显示屏背光结构大多为侧发光式，而这种对于高对比度低功耗等需求，很难实现，目前较前沿的技术是使用mini LED或面发光的直下式光源背光，直下式背光模组可减小整个背光模组的体积。
而直下式背光受到光源结构和散热条件限制，常规的侧发光式光源的结构固定方案（常规侧发光式背光）已不再适用。
 技术问题
为了解决上述技术问题，本发明提供了一种背光模组及显示装置，用以解决现有技术中无法保证无法通过侧发光式光源的结构固定方案来固定直下式光源背光的方案。
 技术解决方案
解决上述问题的技术方案是：一种背光模组，包括基板，具有一底面；至少两个开孔，均设于所述基板的周侧且贯穿整个所述基板；胶框，围绕并密封于所述基板周侧；所述胶框在所述开孔处设有对应的爪勾，所述爪勾从背离所述基板底面的一面穿过所述开孔并勾接于所述基板的底面。
进一步的，所述爪勾与所述开孔之间具有间隙，所述背光模组还包括密封胶层，密封于所述间隙中并延伸至所述底面。
进一步的，所述背光模组还包括若干LED灯珠，均匀排布于所述基板远离所述底面一侧。
进一步的，所述爪勾为弹性塑胶材料。
进一步的，所述胶框对应所述开孔处设有一空腔，所述空腔具有一底面；所述爪勾包括一连接部和一勾部，所述连接部连接所述底面和所述勾部；其中，所述基板与所述底面具有一间隙
本发明还提供了一种显示装置，包括所述背光模组。
进一步的，包括显示区和围绕所述的非显示区；所述胶框对应的设置在所述非显示区。
进一步的，所述胶框远离所述背板的一侧设有台阶结构，所述台阶结构朝向所述显示区；所述显示装置还包括扩散层和显示面板，分别安装于所述台阶结构上。
进一步的，所述台阶结构包括第一台阶、第二台阶和第三台阶，依次从靠近所述显示区的一侧向远离所述显示区的一侧阶级向上设置；所述扩散层设于所述第一台阶上；所述显示面板设于所述第二台阶上。
进一步的，所述扩散层的厚度小于所述第二台阶的高度，所述显示面板的高度小于所述第三台阶的高度。
 有益效果
本发明的背光模组及显示装置，在基板的边侧密封覆盖胶框，用以保护基板内的电器元件并防止漏光，通过在基板上开设通孔，并在胶框对应通孔处设置一爪勾，将爪勾贯穿通孔并勾接基板，以实现固定基板和胶框的目的，同时在爪勾和通孔的连接处密封一层胶水，用以防止漏光和水汽入侵，胶框采用台阶式设计，通过将扩散板和显示面板分别置于不同的台阶上，在保证扩散板与显示面板距离的同时也有效的防止漏光现象。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是实施例1中的背光模组局部示意图。
图2是实施例2中的显示装置示意图。
图3是实施例1中的爪勾尺寸示意图。
图4是实施例1中的爪勾局部示意图。
图中
10 背光模组；                      110 基板；
120 胶框；                         1101 底面；
1102 显示区；                      1103 非显示区；
121 爪勾；                         111 开孔；
1211 连接部；                      11021 LED灯珠；
1212 勾部；                        20 扩散层；
30 显示面板；                      122 台阶结构；
1221 第一台阶；                    1222 第二台阶；
12211 第一平面；                   12212 第二平面；
12221 第三平面；                   12222 第四平面；
1111 密封胶层；                    1201 空腔；
12011 空腔底面；
 本发明的实施方式
本实施例中，本发明的背光模组10包括基板110和胶框120。
如图1所示，所述基板110具有一底面1101，其中，所述基板110上设有至少两个开孔111，在本实施例中，所述开孔111对称分布于所述基板110的两侧。
所述基板110包括显示区1102和围绕所述显示区1102的非显示区1103，所述显示区1102中设有若干LED灯珠11021，所述LED灯珠11021均匀分布于所述显示区1102中，用于提供稳定的光源。
所述胶框120围绕所述基板110的周侧并覆盖所述非显示区1103，用于密封所述基板110，防止其漏光。
为了更好的固定所述基板110，在所述基板110的开孔111处，所述胶框120对应设有一爪勾121，所述爪勾121为弹性塑胶材料，其可以在外力作用下变形，在不施加外力的情况下，所述爪勾121可以恢复为初始状态。
如图4所示，所述胶框120对应所述开孔111处设有一空腔1201，所述空腔1202具有一空腔底面12011；
所述爪勾121具有一连接部1211和一勾部1212，所述连接部1211贯穿所述开孔111连接所述空腔底面12011和所述勾部1212，其中，由于所述胶框120对应所述开孔111处设有一间隙，便于所述基板110与所述爪勾121的组装，同时便于将所述爪勾121的所述勾部1212变形以通过所述开孔111并勾接于所述基板110的所述底面1101。
如图3所示，所述勾部1212的宽度为A,所述勾部1212与所述连接部1211的宽度之和为B，所述连接部1211距离所述开孔111的最近距离为C，所述开孔111宽度为D，为了确保所述勾部1212完全穿过所述开孔111且勾接于所述基板110，所述勾部1212与所述连接部1211的宽度之和B＜开孔111宽度D以便于爪勾微变形后伸入开孔，所述勾部1212的宽度A＞所述连接部1211距离所述开孔111的最近距离C，以便于爪勾通过所述开孔111后勾住所述基板110。
如图4所示，所述勾部1212和所述连接部1211存在一夹角，在将所述胶框120置于所述基板110上时，通过外力将连接部1211掰至一定角度，当所述开孔111处于所述勾部1212下方时，将所述勾部1212通过变形穿过所述开孔111，由于所述勾部1212的边缘至所述连接部1211的距离大于同一侧所述开孔111孔壁至所述连接部1211的距离，所以在所述勾部1212穿过所述开孔111后可以直接勾接于所述基板110，达到固定所述基板110的作用，且所述爪勾121与所述开孔111配合为间隙配合，不需要高精度，可以广泛生产，节约成本。
为了防止光线从所述勾部1212和所述开孔111之间的缝隙中穿过造成漏光现象，本实施例中，还包括一密封胶层1111，所述密封胶层1111密封所述勾部1212和所述开孔111之间的缝隙。
实施例2
如图2所示，本实施例中，本发明的显示装置包括实施例1中的背光模组10，还包括扩散层20和显示面板30。
为了承接所述扩散层20和所述显示面板30，本实施例中，所述胶框120还包括有台阶结构122，所述台阶结构122设于所述基板110远离所述底面1101一侧即朝向所述显示区1102，具体的，所述台阶结构122包括第一台阶1221、第二台阶1222和第三台阶。
所述第一台阶1221设于所述胶框120内侧即靠近所述显示区1102一侧，所述第一台阶1221包括第一平面12211和第二平面12212，其中，所述第一平面12211为水平面，所述第二平面12212为所述第一平面12211的对立面，其与所述第一平面12211的夹角大于90度小于180度，保证所述第一台阶1221的稳定性，同时便于加工所述第一台阶结构1221。
所述扩散层20设于所述第一台阶1221的第一平面12211上，用于散射来自所述LED灯珠11021发射出的光线，使光线更加柔和，均匀。
所述第一台阶1221、所述第二台阶1222和所述第三台阶成阶梯状，其中，所述第二台阶1222包括第三平面12221和第四平面12222，所述第三平面12221与所述第二平面12212互为对立面，其夹角大于90度小于180度，所述第四平面12222与所述第一平面12211平行。
所述显示面板30设于所述第四平面12222上，为了保证所述扩散层20与所述显示面板30之间留有间隙，方便光线传输，所述第四平面12222与所述第一平面12211的高度差大于所述扩散层20的厚度，所述显示面板30的厚度小于所述第三台阶的厚度。
以上仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (14)

  1. 一种背光模组，其中，包括
    基板，具有一底面；
    至少两个开孔，均设于所述基板的周侧且贯穿整个所述基板；
    胶框，围绕并密封于所述基板周侧；所述胶框在所述开孔处设有对应的爪勾，所述爪勾从背离所述基板底面的一面穿过所述开孔并勾接于所述基板的底面。
  2. 根据权利要求1所述的背光模组，其中，所述爪勾与所述开孔之间具有间隙，所述背光模组还包括密封胶层，密封于所述间隙中并延伸至所述底面。
  3. 根据权利要求1所述的背光模组，其中， 还包括
    若干LED灯珠，均匀排布于所述基板远离所述底面一侧。
  4. 根据权利要求1所述的背光模组，其中，
    所述爪勾为弹性塑胶材料。
  5. 根据权利要求1所述的背光模组，其中，
    所述胶框对应所述开孔处设有一空腔，所述空腔具有一空腔底面；
    所述爪勾包括一连接部和一勾部，所述连接部连接所述底面和所述勾部；其中，所述基板与所述空腔底面具有一间隙。
  6. 一种显示装置，其中，包括如权利要求1所述的背光模组。
  7. 根据权利要求6所述的显示装置，其中，所述爪勾与所述开孔之间具有间隙，所述背光模组还包括密封胶层，密封于所述间隙中并延伸至所述底面。
  8. 根据权利要求6所述的显示装置，其中，还包括若干LED灯珠，均匀排布于所述基板远离所述底面一侧。
  9. 根据权利要求6所述的显示装置，其中，所述爪勾为弹性塑胶材料。
  10. 根据权利要求6所述的显示装置，其中，所述胶框对应所述开孔处设有一空腔，所述空腔具有一空腔底面；所述爪勾包括一连接部和一勾部，所述连接部连接所述底面和所述勾部；其中，所述基板与所述空腔底面具有一间隙。
  11. 根据权利要求6所述的显示装置，其中，包括显示区和围绕所述的非显示区；所述胶框对应的设置在所述非显示区。
  12. 根据权利要求11所述的显示装置，其中，
    所述胶框远离所述背板的一侧设有台阶结构，所述台阶结构朝向所述显示区；
    所述显示装置还包括扩散层和显示面板，分别安装于所述台阶结构上。
  13. 根据权利要求12所述的显示装置，其中，所述台阶结构包括
    第一台阶、第二台阶和第三台阶，依次从靠近所述显示区的一侧向远离所述显示区的一侧阶级向上设置；所述扩散层设于所述第一台阶上；所述显示面板设于所述第二台阶上。
  14. 根据权利要求13所述的显示装置，其中，所述扩散层的厚度小于所述第二台阶的高度，所述显示面板的高度小于所述第三台阶的高度。
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