WO2017185594A1 - 一种背光模组、显示模组及显示设备 - Google Patents

一种背光模组、显示模组及显示设备 Download PDF

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Publication number
WO2017185594A1
WO2017185594A1 PCT/CN2016/099589 CN2016099589W WO2017185594A1 WO 2017185594 A1 WO2017185594 A1 WO 2017185594A1 CN 2016099589 W CN2016099589 W CN 2016099589W WO 2017185594 A1 WO2017185594 A1 WO 2017185594A1
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WIPO (PCT)
Prior art keywords
backlight module
plastic frame
light guide
guide plate
optical film
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PCT/CN2016/099589
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English (en)
French (fr)
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高建斌
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乐视控股（北京）有限公司
乐视致新电子科技（天津）有限公司
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Publication of WO2017185594A1 publication Critical patent/WO2017185594A1/zh

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    • 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
    • G02F1/1335—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 embodiments of the present invention relate to the field of display technologies, and in particular, to a backlight module, a display module, and a display device.
  • TFT-LCD Thin Film Transistor Liquid Crystal Display
  • a backlight module of a liquid crystal display device generally uses an LED (light-emitting diode, LED for short) as a light source. According to the distribution position of the light source, the backlight module can be divided into a direct-lighting type and a side-input type. .
  • LED light-emitting diode
  • the main structure of the common side-lit backlight module includes: a backing plate 11 having an accommodating space, and a reflective sheet 12 disposed in the accommodating space of the backing plate 11 and sequentially disposed.
  • the light guide plate 13 and the optical film 14 are disposed between the side wall of the back plate 11 and the light incident end face of the light guide plate 13 (light-emitting diode), and the optical film.
  • the number of optical films 14 used in the backlight module is often not less than two.
  • the main structure of the liquid crystal display device further includes a liquid crystal panel 17 and a front frame 18, wherein the liquid crystal panel 17 is assembled on the front side of the plastic frame 16, and the front frame 18 is from the front side of the liquid crystal panel 17 and the backlight module.
  • the back panel 11 is assembled.
  • the present application provides a backlight module, a display module, and a display device to reduce the thickness of the backlight module, thereby reducing the thickness of the display device, and achieving a thin design of the display device.
  • the backlight module provided by the present application comprises a back plate, a reflective sheet, a light guide plate, a light source assembly, a plastic frame and at least one first optical film, wherein:
  • the backboard includes a bottom wall and a side wall forming an accommodation space
  • the reflective sheet and the light guide plate are sequentially placed in the accommodating space of the backboard;
  • the light source assembly is located between the light incident end surface of the light guide plate and the sidewall of the back plate;
  • the plastic frame is connected to the back plate, and includes a side wall opposite to the side wall of the back plate, and a front wall opposite to the front side of the light guide plate;
  • the at least one first optical film is located on a front side of the light guide plate and is located inside the front end wall end surface of the plastic frame.
  • an expansion gap is formed between the front wall end surface of the plastic frame and the at least one first optical film.
  • the side wall of the backboard has at least one tongue protruding toward the front side, and the first optical film has a mounting ear attached to the tongue for each of the tongues.
  • the tongues are at least two, disposed on the side wall of the back panel.
  • the back side of the front wall of the plastic frame is fixed with a buffer tape.
  • the second optical film is disposed between the front side of the light guide plate and the front wall of the plastic frame.
  • the front side of the front wall of the plastic frame has a limiting groove for limiting the liquid crystal panel.
  • the first optical film is located on the front side of the light guide plate and is located inside the front end wall end surface of the plastic frame, that is, the first optical film is placed in the opposite frame, which is compared with the prior art.
  • the design can greatly reduce the thickness of the backlight module, thereby reducing the thickness of the display device and achieving a thin design of the display device.
  • the present application further provides a display module, including the backlight module of any one of the foregoing technical solutions, and a liquid crystal panel located at a front side of the backlight module and a front frame located at a front side of the liquid crystal panel and connected to the backlight module.
  • the thickness of the display module is small, so that the thickness of the display device including the display module is small, and the thin design can be realized.
  • the present application also provides a display device, including the display module described in the foregoing technical solution.
  • the thickness of the display device is small, which is in line with the trend of thinning display devices.
  • the display device comprises a liquid crystal television, a liquid crystal display or a liquid crystal advertising screen.
  • FIG. 1 is a schematic cross-sectional view of a prior art display module
  • FIG. 2 is a schematic cross-sectional view of a display module according to an embodiment of the present application.
  • FIG. 3 is a schematic cross-sectional view showing a display module according to another embodiment of the present application.
  • FIG. 4 is a schematic cross-sectional view showing the tongue of the first optical film and the tongue of the back plate;
  • Figure 5 is a top plan view of the tongue of the first optical film and the tongue of the back plate.
  • 11-back plate 12-reflecting sheet; 13-light guide plate; 14-optical diaphragm; 15-LED lamp group; 16-plastic frame;
  • the backlight module provided by the embodiment of the present invention includes a backboard 21, a reflective sheet 22, a light guide plate 23, a light source assembly 25, a plastic frame 26, and at least one first optical film 241, wherein:
  • the back plate 21 includes a bottom wall 211 and a side wall 212 forming an accommodation space;
  • the reflective sheet 22 and the light guide plate 23 are sequentially placed in the accommodating space of the back plate 21;
  • the light source assembly 25 is located between the light incident end surface of the light guide plate 23 and the side wall 212 of the back plate 21;
  • the plastic frame 26 is connected to the back plate 21, and includes a side wall 261 opposite to the side wall 212 of the back plate 21, and a front wall 262 opposite to the front side periphery of the light guide plate 23;
  • the at least one first optical film 241 is located on the front side of the light guide plate 23 and is located inside the end surface of the front barrier wall 262 of the plastic frame 26.
  • “front” and “front side” can be understood as the side of the display device that is close to the viewer when the display device is in normal use, and the “back side” can be understood as the side of the component that is away from the viewer.
  • the overall shape is a rectangle, and when the display device is in normal use, the screen faces the viewer and is perpendicular to the ground or at an angle. Therefore, when the display device is defined, the "front side” is the side of the part close to the viewer, the “back side” is the side of the part away from the viewer, and the side of the part away from the ground is the "sky side”.
  • the side close to the ground is the "ground side”
  • the side of the component facing the viewer is "left side” on the left hand side and "right side” on the right hand side.
  • the side wall 212 of the backboard 21 can be divided into a side wall, a side wall, a left side wall, and a right side wall.
  • the specific type of the light source assembly 25 is not limited, and an LED lamp group is preferably employed.
  • the specific arrangement position of the light source unit 25 is not limited.
  • the ground side end surface of the light guide plate 23 is a light incident end surface, and the light source unit 25 is disposed between the ground side end surface of the light guide plate 23 and the ground side wall of the back plate 21.
  • the specific connection structure of the plastic frame 26 and the back plate 21 is not limited.
  • a card point protrusion (not shown) is designed on the side wall 212 of the back plate 21, and the side wall 261 of the plastic frame 26 is designed at a corresponding position.
  • the card hole (not shown), the plastic frame 26 and the back plate 21 are engaged by a plurality of such structures; in addition, the back plate 26 and the plastic frame 21 can also be fixedly connected by fasteners such as screws.
  • the specific type of the first optical film 241 is not limited, and may be, for example, a diffusion sheet, a prism sheet or a protective sheet, or the like.
  • the number of the first optical films 241 is also not limited, and may be one, two, three or more sheets, and needs to be determined according to the optical design requirements of the backlight module.
  • the first optical film 241 is located on the front side of the light guide plate 23 and is located inside the end surface of the front wall 262 of the plastic frame 26, that is, the first optical film 241 is placed in the plastic frame 26 Compared with the optical film in the prior art, which is located between the light guide plate and the front wall of the plastic frame, the structure design can greatly reduce the thickness of the backlight module, thereby reducing the thickness of the display device and realizing the thinness of the display device. Design.
  • the plastic frame An end face of the front retaining wall 262 of 26 has an expansion gap with the at least one first optical film 241.
  • the expansion of the expansion gap can prevent the first optical film 241 from being deformed by expansion and contraction, thereby ensuring the picture quality of the display device.
  • the side wall 212 of the back plate 21 has at least one tongue 213 protruding toward the front side, and the first optical film 241 has a tongue and a tongue corresponding to each of the tongues 213. 213 mounted mounting ears 2411.
  • the assembler can quickly and accurately assemble and position the first optical film 241 and the plastic frame, thereby improving assembly efficiency and ensuring assembly precision.
  • the specific number and arrangement position of the tongue pieces 213 are not limited.
  • at least two tabs are disposed on the side wall of the back panel.
  • the backlight module may also include a second optical film 242 located between the front side of the light guide plate 23 and the front barrier wall 262 of the plastic frame 26.
  • the second optical film 242 may be an optical film having a small thickness such as a diffusion sheet. Compared with the prior art, the structural design can still reduce the thickness of the backlight module to some extent.
  • the front side wall 262 of the plastic frame 26 is fixed with a cushioning tape 29 on the back side.
  • the provision of the cushioning tape 29 can reduce the scratching of the light guide plate 23 or the second optical film by the front barrier wall 262, thereby facilitating the improvement of the picture quality of the display device and the yield of the product.
  • the front side of the front wall 262 of the plastic frame 26 has a limiting groove 263 for limiting the liquid crystal panel 27 .
  • the liquid crystal panel 27 can be affixed and fixed in the limiting groove 263 by a buffer tape.
  • the liquid crystal panel 27 is assembled in the limiting recess 263, which not only has convenient positioning, but also does not increase the thickness of the backlight module.
  • the embodiment of the present application further provides a display module, including the backlight module of any of the foregoing embodiments, and a liquid crystal panel 27 located at a front side of the backlight module and a front side of the liquid crystal panel 27 and a backlight
  • the front frame 28 of the module connection The thickness of the display module is small, so that the thickness of the display device including the display module is small, and the thin design can be realized.
  • the light source assembly 25 is assembled in the accommodating space of the backboard 21;
  • the reflective sheet 22 and the light guide plate 23 are sequentially assembled in the accommodating space of the back plate 21;
  • the plastic frame 26 is assembled from the front side of the light guide plate 23 and the back plate 21;
  • the mounting ears of the respective first optical films 241 are sequentially attached to the tongues of the back plate 21 to make the first light
  • the diaphragm 241 is assembled on the inner side of the end surface of the front wall 262 of the plastic frame 26;
  • the liquid crystal panel 27 is assembled in the limiting groove 263 of the plastic frame 26;
  • the front frame 28 is assembled from the front side of the liquid crystal panel 27 to the bezel 26 and the back plate 21.
  • the embodiment of the present application further provides a display device, including the display module of the foregoing embodiment.
  • the thickness of the display device is small, which is in line with the trend of thinning display devices.
  • the specific type of display device is not limited, and may be, for example, a liquid crystal television, a liquid crystal display, or a liquid crystal advertising screen, and the like.

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

Abstract

一种背光模组包括背板（21）、反射片（22）、导光板（23）、光源组件（25）、胶框（26）以及至少一张第一光学膜片（241）。背板包括形成容置空间的底壁（211）和侧壁（212）；反射片和导光板顺序放置于背板的容置空间内；光源组件位于导光板的入光端面和背板的侧壁之间；胶框与背板连接，包括与背板的侧壁相对的侧挡壁（261），以及与导光板的前侧周边相对的前挡壁（262）；至少一张第一光学膜片位于导光板的前侧且位于胶框的前挡壁端面内侧。此外，还公开了一种显示模组和显示设备。将第一光学膜片相对胶框中置放置的结构可以大大减小背光模组的厚度，进而可以减小显示设备的厚度，实现显示设备的薄型化设计。

Description

一种背光模组、显示模组及显示设备
本申请要求在2016年04月25日提交中国专利局、申请号为201610264236.5、发明名称为“一种背光模组、显示模组及显示设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及显示技术领域，特别是涉及一种背光模组、显示模组及显示设备。
背景技术
在平板显示装置中，薄膜晶体管液晶显示器(Thin Film Transistor Liquid Crystal Display，简称TFT-LCD)具有体积小、功耗低、制造成本相对较低和无辐射等特点，在当前的平板显示器市场占据了主导地位。
目前，液晶显示设备的背光模组普遍采用LED(light-emitting diode，发光二极管，简称LED)作为光源，根据光源的分布位置，背光模组可分为直下入光式和侧入光式两种。
液晶显示设备中，如图1所示，常见的侧入光式背光模组的主要结构包括：具有容置空间的背板11，位于背板11的容置空间内并顺序放置的反射片12、导光板13和光学膜片14，位于背板11的侧壁与导光板13的入光端面之间的LED(light-emitting diode，发光二极管，简称LED)灯组15，以及位于光学膜片14上方且与背板11组装的胶框16。为使背光模组能够提供亮度和均一度较好的面光，目前背光模组中所使用光学膜片14的数量往往不少于为两张。
除背光模组外，液晶显示设备的主要结构还包括液晶面板17和前框18，其中，液晶面板17组装于胶框16的前侧，前框18从液晶面板17的前侧与背光模组的背板11组装。
随着科技的不断进步，消费者对液晶显示器、液晶电视机等显示设备的需求也在不断提升，显示设备的结构、外观、性能等各个方面的更新也日益频繁。在实现本申请过程中，发明人发现现有技术中至少存在如下问题：由于背光模组的厚度比较大，导致显示设备的整体厚度也比较大，这显然无法满足当前显示设备薄型化的发展趋势。
发明内容
本申请提供了一种背光模组、显示模组及显示设备，以减小背光模组的厚度，进而减小显示设备的厚度，实现显示设备的薄型化设计。
本申请提供的背光模组，包括背板、反射片、导光板、光源组件、胶框以及至少一张第一光学膜片，其中：
所述背板包括形成容置空间的底壁和侧壁；
所述反射片和导光板顺序放置于背板的容置空间内；
所述光源组件位于导光板的入光端面和背板的侧壁之间；
所述胶框与背板连接，包括与背板的侧壁相对的侧挡壁，以及与导光板的前侧周边相对的前挡壁；
所述至少一张第一光学膜片位于导光板的前侧且位于胶框的前挡壁端面内侧。
优选的，所述胶框的前挡壁端面与所述至少一张第一光学膜片之间具有膨胀间隙。
较佳的，所述背板的侧壁具有朝向前侧凸起的至少一个舌片，所述第一光学膜片对应每一个舌片具有与所述舌片挂接的挂耳。
更佳的，所述舌片至少为两个，设置于背板的天侧侧壁。
较佳的，所述胶框的前挡壁背侧固定有缓冲胶带。
可选的，还包括位于导光板的前侧与胶框的前挡壁之间的第二光学膜片。
优选的，所述胶框的前挡壁前侧具有用于限位液晶面板的限位凹槽。
在本申请技术方案中，第一光学膜片位于导光板的前侧且位于胶框的前挡壁端面内侧，即第一光学膜片相对胶框中置放置，相比现有技术，该结构设计可以大大减小背光模组的厚度，进而可以减小显示设备的厚度，实现显示设备的薄型化设计。
本申请还提供一种显示模组，包括前述任一技术方案所述的背光模组，以及位于背光模组前侧的液晶面板和位于液晶面板前侧并与背光模组连接的前框。该显示模组的厚度较小，进而使得包含该显示模组的显示设备的厚度较小，可以实现薄型化设计。
本申请还提供一种显示设备，包括前述技术方案所述的显示模组。该显示设备的厚度较小，符合显示设备的薄型化发展趋势。
可选的，所述显示设备包括液晶电视机、液晶显示器或液晶广告屏。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，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它的附图。
图1为现有技术显示模组的截面示意图；
图2为本申请一实施例显示模组的截面示意图；
图3为本申请另一实施例显示模组的截面示意图；
图4为第一光学膜片的挂耳与背板的舌片配合截面示意图；
图5为第一光学膜片的挂耳与背板的舌片配合俯视图。
附图标记：
现有技术部分：
11-背板；12-反射片；13-导光板；14-光学膜片；15-LED灯组；16-胶框；
17-液晶面板；18-前框。
本申请实施例部分：
21-背板；22-反射片；23-导光板；25-光源组件；26-胶框；27-液晶面板；
28-前框；29-缓冲胶带；241-第一光学膜片；242-第二光学膜片；211-底壁；
212-侧壁；213-舌片；2411-挂耳；261-侧挡壁；262-前挡壁；263-限位凹槽。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例，都属于本申请保护的范围。
如图2所示，本申请实施例提供的背光模组，包括背板21、反射片22、导光板23、光源组件25、胶框26以及至少一张第一光学膜片241，其中：
背板21包括形成容置空间的底壁211和侧壁212；
反射片22和导光板23顺序放置于背板21的容置空间内；
光源组件25位于导光板23的入光端面和背板21的侧壁212之间；
胶框26与背板21连接，包括与背板21的侧壁212相对的侧挡壁261，以及与导光板23的前侧周边相对的前挡壁262；
前述至少一张第一光学膜片241位于导光板23的前侧且位于胶框26的前挡壁262的端面内侧。
在本申请实施例中，“前”、“前侧”可以理解为显示设备在通常使用时，该部件靠近观看者的一侧，“背侧”则可以理解为该部件远离观看者的一侧。对于液晶电视机、液晶显示器等常见的显示设备，其整体形状呈矩形，显示设备在正常使用时，其屏幕面向观看者并与地面垂直或者呈一定夹角。因此，定义显示设备在通常使用时，“前侧”为该部件靠近观看者的一侧，“背侧”为该部件远离观看者的一侧；部件远离地面的一侧为“天侧”，靠近地面的一侧为“地侧”，部件面向观看者时其左手边一侧为“左侧”，其右手边一侧为“右侧”。
基于上述定义，背板21的侧壁212可以分为天侧侧壁、地侧侧壁、左侧侧壁和右侧侧壁。在本申请实施例中，光源组件25的具体类型不限，优选采用LED灯组。光源组件25的具体设置位置不限，优选的，导光板23的地侧端面为入光端面，光源组件25设置在导光板23的地侧端面与背板21的地侧侧壁之间。
胶框26与背板21的具体连接结构不限，例如，在背板21的侧壁212设计卡点凸起(图中未示出)，胶框26的侧挡壁261在对应的位置设计卡孔(图中未示出)，胶框26与背板21通过多组这样的结构实现卡接；此外，背板26和胶框21也可以通过螺钉等紧固件实现固定连接。
在本申请实施例中，第一光学膜片241的具体类型不限，例如可以为扩散片、棱镜片或者保护片等等。第一光学膜片241的数量也不限，可以为一张、两张、三张或者更多张，需要根据背光模组的光学设计要求来确定。
在本申请实施例技术方案中，第一光学膜片241位于导光板23的前侧且位于胶框26的前挡壁262端面的内侧，即第一光学膜片241相对胶框26中置放置，相比现有技术中光学膜片位于导光板和胶框的前挡壁之间，该结构设计可以大大减小背光模组的厚度，进而可以减小显示设备的厚度，实现显示设备的薄型化设计。
考虑到第一光学膜片241随环境温湿度变化的热胀冷缩，优选的，胶框 26的前挡壁262的端面与前述至少一张第一光学膜片241之间具有膨胀间隙。预留该膨胀间隙可以避免第一光学膜片241因膨胀受挤压而造成拱起变形，从而保障显示设备的画面品质。
如图4和图5所示，该实施例中，背板21的侧壁212具有朝向前侧凸起的至少一个舌片213，第一光学膜片241对应每一个舌片213具有与舌片213挂接的挂耳2411。采用该结构设计，组装人员可以快速、准确地将第一光学膜片241与胶框组装定位，提高了组装效率，保障了组装的精度。
舌片213的具体数量和设置位置不限。在本申请较佳实施例中，舌片至少为两个，设置于背板的天侧侧壁。组装人员在组装时，将第一光学膜片的天侧的挂耳挂接在对应的舌片上，此时第一光学膜会自然落入胶的前挡壁端面内侧，操作起来快速且准确。
如图3所示的实施例，背光模组也可以包括位于导光板23的前侧与胶框26的前挡壁262之间的第二光学膜片242。第二光学膜片242可以为扩散片等厚度较小的光学膜片。相比现有技术，该结构设计仍能够在一定程度上减小背光模组的厚度。
如图2所示，较佳的，胶框26的前挡壁262背侧固定有缓冲胶带29。设置缓冲胶带29可以减少前挡壁262对导光板23或第二光学膜片的刮伤，从而有利于提高显示设备的画面品质和产品的合格率。
此外，请参照图2所示，优选的，胶框26的前挡壁262前侧具有用于限位液晶面板27的限位凹槽263。液晶面板27可以通过缓冲胶带粘贴固定在限位凹槽263内。将液晶面板27组装在该限位凹槽263内，不但定位方便，而且也不会增加背光模组的厚度。
参照图2所示，本申请实施例还提供一种显示模组，包括前述任一实施例的背光模组，以及位于背光模组前侧的液晶面板27和位于液晶面板27前侧并与背光模组连接的前框28。该显示模组的厚度较小，进而使得包含该显示模组的显示设备的厚度较小，可以实现薄型化设计。
图2所示显示模组的组装过程如下：
将光源组件25组装在背板21的容置空间内；
将反射片22和导光板23顺序组装在背板21的容置空间内；
将胶框26从导光板23的前侧与背板21组装；
顺序将各个第一光学膜片241的挂耳挂接在背板21的舌片上，使第一光 学膜片241组装在胶框26的前挡壁262的端面的内侧；
将液晶面板27组装在胶框26的限位凹槽263内；
将前框28从液晶面板27的前侧与胶框26和背板21组装。
本申请实施例还提供一种显示设备，包括前述实施例的显示模组。该显示设备的厚度较小，符合显示设备的薄型化发展趋势。显示设备的具体类型不限，例如可以为液晶电视机、液晶显示器或液晶广告屏，等等。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (10)

  1. 一种背光模组，其特征在于，包括背板、反射片、导光板、光源组件、胶框以及至少一张第一光学膜片，其中：
    所述背板包括形成容置空间的底壁和侧壁；
    所述反射片和导光板顺序放置于背板的容置空间内；
    所述光源组件位于导光板的入光端面和背板的侧壁之间；
    所述胶框与背板连接，包括与背板的侧壁相对的侧挡壁，以及与导光板的前侧周边相对的前挡壁；
    所述至少一张第一光学膜片位于导光板的前侧且位于胶框的前挡壁端面内侧。
  2. 根据权利要求1所述的背光模组，其特征在于，所述胶框的前挡壁端面与所述至少一张第一光学膜片之间具有膨胀间隙。
  3. 根据权利要求1所述的背光模组，其特征在于，所述背板的侧壁具有朝向前侧凸起的至少一个舌片，所述第一光学膜片对应每一个舌片具有与所述舌片挂接的挂耳。
  4. 根据权利要求3所述的背光模组，其特征在于，所述舌片至少为两个，设置于背板的天侧侧壁。
  5. 根据权利要求1所述的背光模组，其特征在于，所述胶框的前挡壁背侧固定有缓冲胶带。
  6. 根据权利要求1所述的背光模组，其特征在于，还包括位于导光板的前侧与胶框的前挡壁之间的第二光学膜片。
  7. 根据权利要求1～6任一项所述的背光模组，其特征在于，所述胶框的前挡壁前侧具有用于限位液晶面板的限位凹槽。
  8. 一种显示模组，其特征在于，包括根据权利要求1～7任一项所述的背光模组，以及位于背光模组前侧的液晶面板和位于液晶面板前侧并与背光模组连接的前框。
  9. 一种显示设备，其特征在于，包括根据权利要求8所述的显示模组。
  10. 根据权利要求9所述的显示设备，其特征在于，所述显示设备包括液晶电视机、液晶显示器或液晶广告屏。
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