WO2017067254A1 - 背光模组及其组装方法和显示装置 - Google Patents

背光模组及其组装方法和显示装置 Download PDF

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Publication number
WO2017067254A1
WO2017067254A1 PCT/CN2016/091039 CN2016091039W WO2017067254A1 WO 2017067254 A1 WO2017067254 A1 WO 2017067254A1 CN 2016091039 W CN2016091039 W CN 2016091039W WO 2017067254 A1 WO2017067254 A1 WO 2017067254A1
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Prior art keywords
backlight module
optical film
light
shielding tape
plastic frame
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PCT/CN2016/091039
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English (en)
French (fr)
Inventor
裴效增
胡广跃
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京东方科技集团股份有限公司
京东方光科技有限公司
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Priority to US15/325,311 priority Critical patent/US20180217314A1/en
Publication of WO2017067254A1 publication Critical patent/WO2017067254A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0051—Diffusing sheet or layer
    • 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
    • G02B6/0065—Manufacturing aspects; Material aspects
    • 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • 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

Definitions

  • Embodiments of the present invention relate to the field of display technologies, and in particular, to a backlight module, an assembly method thereof, and a display device.
  • the backlight module (Back Light Module) is a light source fixed behind a liquid crystal display (English: Liquid Crystal Display; referred to as: LCD).
  • the illumination effect of the backlight module directly affects the visual effect of the liquid crystal display.
  • the proportion of the visible area of the backlight module is an important parameter for measuring the quality of the backlight module.
  • the percentage of the visible area of the backlight module refers to the proportion of the visible area of the backlight module to the overall area of the backlight module.
  • the backlight module comprises a light source, a light guide plate, an optical film, a light shielding tape, a back plate and a plastic frame, wherein the light shielding tape is attached around the optical film, and is mainly used for fixing the backlight module and the LCD.
  • the area of the "back" shaped area enclosed by the light-shielding tape on the optical film in the backlight module constitutes a visible area of the backlight module.
  • a backlight module includes an optical film and a light-shielding tape, wherein the n-side of the four sides of the optical film is provided with the light-shielding tape, and the n is A positive integer less than 4.
  • a display device including the above backlight module is provided.
  • a method for assembling a backlight module includes: providing an optical film; and setting the light shielding tape on an n side of four sides of the optical film, wherein n is less than 4 Positive integer.
  • FIG. 1 is a schematic diagram of a backlight module according to an embodiment of the present invention.
  • FIG. 2 is a schematic cross-sectional view of a backlight module according to an embodiment of the present invention.
  • FIG. 3 is a schematic cross-sectional view of another backlight module according to an embodiment of the present invention.
  • FIG. 4 is a flow chart of a method for assembling a backlight module according to an embodiment of the present invention.
  • the backlight module includes an optical film 11 and a light shielding tape 12 .
  • the light shielding tape 12 is disposed on the n sides of the four sides of the optical film 11 , and n is smaller than A positive integer of 4, for example, n is 1, 2 or 3.
  • the backlight module further includes a plastic frame 10, and the optical film 11 is pasted on the plastic frame 10 through the light shielding tape 12.
  • n is equal to 1, that is, one of the four sides of the optical film 11 is provided with the light-shielding tape 12.
  • the area of the optical film covered by the light-shielding tape is reduced, and the area of the visible area of the backlight module is increased, thereby improving the area.
  • the proportion of the visible area of the backlight module since at least one of the four sides of the optical film is not provided with the light-shielding tape, the area of the optical film covered by the light-shielding tape is reduced, and the area of the visible area of the backlight module is increased, thereby improving the area.
  • the proportion of the visible area of the backlight module since at least one of the four sides of the optical film is not provided with the light-shielding tape, the area of the optical film covered by the light-shielding tape is reduced, and the area of the visible area of the backlight module is increased, thereby improving the area.
  • the proportion of the visible area of the backlight module since at least one of the four sides of the optical film is not provided with the light-shielding tape, the area of the optical film covered by the light-shielding tape is reduced, and
  • the light shielding tape 12 is disposed on any one of the four sides of the optical film 11 , that is, n is equal to 1, so that the area of the optical film 11 covering the optical film 11 can be effectively reduced, thereby effectively improving the visibility of the backlight module. Regional screen ratio.
  • the light-shielding tape 12 may cover only a partial region of either side of the optical film 11, for example, the light-shielding tape 12 may be non-continuously pasted on either side of the optical film 11.
  • the position of the light-shielding tape 12 can be set according to the actual situation of the product.
  • the light shielding tape 12 can be disposed on the optical film 11 corresponding to either end of the upper and lower ends of the screen of the mobile phone.
  • the light-shielding tape 12 may be disposed on one of the shorter sides of the four sides of the optical film 11.
  • the backlight module further includes: a light source 13; the light source 13 is disposed at an inner side of the plastic frame 10;
  • the light-shielding tape 12 is provided on the diaphragm 11 near one side of the light source 13. That is, the light source 13 is disposed inside the plastic frame 10 and near the side where the light shielding tape 12 is located.
  • the light-shielding tape 12 is attached to the surface of the optical film.
  • the light-shielding tape 12 is, for example, a strip-shaped tape, and the width d of the light-shielding tape 12 is, for example, about 5 mm.
  • the light-shielding tape 12 is disposed on one side of the optical film 11 near the light source 13. In addition to being able to fix the optical film 11 to the plastic frame 10, it can also function as a light-shielding.
  • the light source 13 is a side-entry light source, and the light-shielding tape 12 can prevent the light of the light source 13 from being emitted upward.
  • the backlight module further includes: a backboard 14; the backboard 14 is a housing, the plastic frame 10 is disposed in the backboard 14, and the thickness of the plastic frame 10 is D1 is smaller than the thickness d2 of the backing plate 14.
  • the backboard 14 and the bezel 10 can be integrally formed by insert molding. It can be seen from the cross-sectional view shown in FIG. 2 that the thickness d2 of the retaining wall structure around the backing plate 14 is greater than the thickness d1 of the plastic frame 10, so that when the backlight module is assembled, the periphery of the backing plate 14 can be utilized.
  • the retaining wall structure limits the optical film 11 disposed on the plastic frame 10 to improve the setting rate and setting precision of the optical film 11.
  • the backlight module further includes: a peelable release film 15; the release film 15 covers the optical
  • the diaphragm 11 is fixed to the back plate 14.
  • the release film 15 can be used for fixing the optical film 11.
  • the release film 15 can be a light-shielding tape release film, and the light-shielding tape release film 15 and the light-shielding tape have a slight adhesiveness, so that the release film can be easily torn. except.
  • the release film 15 can be peeled off, and then the backlight module and the display panel are performed by using the light-shielding tape 12 and the shadowless glue applied around the back plate 14. Assembled and fixed.
  • the peelable release film not only can effectively fix the optical film, but also avoids contamination of the optical film by external dust and impurities, thereby effectively ensuring the quality of the backlight module.
  • the optical film 11 may include a diffusion sheet 110, a lower prism 111, and an upper prism 112 which are sequentially stacked on the plastic frame 10.
  • the backlight module further includes:
  • the reflective sheet 16 and the light guide plate 17 are sequentially stacked in the plastic frame 10, and the light guide plate is disposed
  • the optical film 11 is disposed on the plastic frame 10 of 17.
  • the light shielding tape is not disposed on at least one of the four sides of the optical film, the area of the optical film covered by the light shielding tape is reduced, and the area is increased.
  • the area of the visible area of the backlight module further increases the proportion of the visible area of the backlight module.
  • the embodiment of the invention further provides a display device, which may include the backlight module shown in any of FIG. 1 to FIG.
  • the display device can be any product or component having a display function, such as a liquid crystal panel, an electronic paper, an OLED panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • the embodiment of the invention further provides a method for assembling a backlight module, comprising:
  • the light-shielding tape is disposed on an n-side of the four sides of the optical film, and n is a positive integer smaller than 4.
  • the light shielding tape is not disposed on at least one of the four sides of the optical film, the area of the optical film covered by the light shielding tape is reduced, and the area of the visible area of the backlight module is increased. Thereby, the screen area ratio of the visible area of the backlight module is improved.
  • providing the light-shielding tape on the n-side of the four sides of the optical film comprises: pasting the optical film on the plastic frame by the light-shielding tape.
  • providing the light-shielding tape on the n-side of the four sides of the optical film comprises: providing the light-shielding tape on one of four sides of the optical film.
  • the light-shielding tape covers a partial region of one side of the optical film.
  • the light-shielding tape is non-continuously affixed to one side of the optical film.
  • the assembling method further includes: disposing the plastic frame in the back plate, the back plate is a casing, and the thickness of the plastic frame is smaller than the thickness of the back plate.
  • the plastic frame and the back plate are integrally formed.
  • the assembly method further includes covering a release film on the optical film and fixing the back plate.
  • FIG. 4 is a flowchart of a method for assembling a backlight module according to an embodiment of the present invention, for example, for assembling the backlight module shown in FIG. 3. As shown in FIG. 4, the assembly method includes:
  • Step 401 the reflection sheet 16 is disposed at the bottom of the inner side of the integral part of the plastic frame 10 and the back plate 14.
  • Step 402 Fix the light source 13 at one end of the light guide plate 17.
  • Step 403 superposing the light guide plate 17 to which the light source 13 is fixed is disposed above the reflection sheet 16.
  • Step 404 The optical film 11 is placed on the plastic frame 10 provided with the light guide plate 17, and the orientation of the optical film 11 is limited by the retaining wall structure around the back plate 14.
  • the optical film 11 includes a diffusion sheet 110, a lower prism 111, and an upper prism 112 which are sequentially stacked on the plastic frame 10.
  • Step 405 on the optical film 11, a light-shielding tape 12 is attached to one side of the light source 13, and the optical film 11 is pasted on the plastic frame 10 by the light-shielding tape 12.
  • Step 406 covering the release film 15 on the optical film 11 and fixing it to the periphery of the back plate 14.
  • the backlight module assembly method provided by the embodiment of the present invention can limit the optical film by the retaining wall structure around the back plate, thereby improving the assembly efficiency of the backlight module, and the light shielding tape is only pasted in the optical
  • the side of the diaphragm close to the light source reduces the area of the optical film covering the light shielding tape, thereby effectively increasing the screen area ratio of the visible area of the backlight module.

Abstract

一种背光模组及其组装方法和显示装置。背光模组包括光学膜片(11)和遮光胶带（12），其中光学膜片（11）四边中的n边设置有遮光胶带（12），n为小于4的正整数。通过减少遮光胶带（12）在背光模组中光学膜片（11）上覆盖区域的面积，增加了背光模组的可视区域的面积。

Description

背光模组及其组装方法和显示装置 技术领域
本发明实施例涉及显示技术领域，特别涉及一种背光模组及其组装方法和显示装置。
背景技术
背光模组(Back Light Module)是固定于液晶显示器(英文：Liquid Crystal Display；简称：LCD)背后的一种光源，背光模组的发光效果将直接影响到液晶显示器的视觉效果。背光模组的可视区域屏占比是衡量背光模组品质的一项重要参数，其中，可视区域屏占比是指背光模组的可视区域面积占背光模组整体面积的比例。
相关技术中，背光模组包括光源、导光板、光学膜片、遮光胶带、背板和胶框组成，其中遮光胶带贴附在光学膜片的四周，主要用于固定背光模组与LCD。背光模组中遮光胶带在光学膜片上所围成的“回”字形区域内的区域构成了背光模组的可视区域。
发明内容
根据本发明的一方面，提供了一种背光模组，所述背光模组包括光学膜片和遮光胶带，其中所述光学膜片四边中的n边设置有所述遮光胶带，所述n为小于4的正整数。
根据本发明的另一方面，提供了一种显示装置，包括上述背光模组。
根据本发明的再一方面，提供了一种背光模组的组装方法，包括：提供光学膜片；在所述光学膜片的四边中的n边设置所述遮光胶带，所述n为小于4的正整数。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本发明的一些实施例， 而非对本发明的限制。
图1是本发明实施例提供的一种背光模组的示意图；
图2是本发明实施例提供的一种背光模组的截面示意图；
图3是本发明实施例提供的另一种背光模组的截面示意图；
图4是本发明实施例提供的一种背光模组的装配方法流程图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例的附图，对本发明实施例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发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例提供了一种背光模组，参见图1，该背光模组包括光学膜片11和遮光胶带12；该光学膜片11四边中的n边设置有该遮光胶带12，n为小于4的正整数，例如n为1、2或3。背光模组还包括胶框10，光学膜片11通过该遮光胶带12粘贴在该胶框10上。示例的，在图1所示的背光模组中，n等于1，即光学膜片11四边中的一边设置有该遮光胶带12。
在上述背光模组中，由于光学膜片四边中的至少有一边没有设置该遮光胶带，因此减小了遮光胶带覆盖光学膜片的面积，增加了背光模组可视区域的面积，进而提高了背光模组的可视区域屏占比。
进一步的，该光学膜片11四边中的任一边设置有该遮光胶带12，即n等于1，因此能够有效降低该遮光胶带12覆盖光学膜片11的面积，进而有效提高背光模组的可视区域屏占比。至少一些实施例中，该遮光胶带12可以仅覆盖该光学膜片11任一边中的部分区域，例如，该遮光胶带12可以非连续地粘贴在该光学膜片11的任一边。
在实际应用中，该遮光胶带12的位置可以根据产品的实际情况进行设置。例如，对于手机中的背光模组，由于手机屏幕上下两端的位置处需要设置听筒和话筒等部件，因此可以将该遮光胶带12设置在光学膜片11上对应于手机屏幕上下两端的任一端。示例的，如图1所示，可以将该遮光胶带12设置在光学膜片11四边中较短的两边中的一边。
图2是本发明实施例提供的一种背光模组的截面示意图，如图2所示，该背光模组还包括：光源13；该光源13设置在该胶框10内侧的一端；在该光学膜片11上，靠近该光源13的一边设置有该遮光胶带12。也就是，所述光源13设置在所述胶框10内侧，且靠近所述遮光胶带12所在的一边。遮光胶带12贴附在光学膜片的表面。该遮光胶带12例如为条状胶带，且该遮光胶带12的宽度d例如大约为5毫米。该遮光胶带12设置在光学膜片11上靠近光源13的一边，除了能够将光学膜片11固定在胶框10上，还能起到遮光的作用。例如，光源13为侧入式光源，那么遮光胶带12可以防止光源13的光向上射出。
至少一些实施例中，如图2所示，该背光模组还包括：背板14；该背板14为壳体，该胶框10设置在该背板14内，且该胶框10的厚度d1小于该背板14的厚度d2。示例的，在实际应用中，该背板14和该胶框10可以通过镶件注塑的方法一体成型。从图2所示的截面图中可以看出，该背板14四周的挡墙结构的厚度d2大于该胶框10的厚度d1，因此在组装背光模组时，可以利用该背板14四周的挡墙结构，对设置在该胶框10上的光学膜片11进行限位，以提高该光学膜片11的设置速率和设置精度。
图3是本发明实施例提供的另一种背光模组的截面示意图，如图3所示，该背光模组还包括：可撕除的离型膜15；该离型膜15覆盖在该光学膜片11上，且固定于该背板14。
该离型膜15可以用于固定该光学膜片11，该离型膜15可以为遮光胶带离型膜，该遮光胶带离型膜15与遮光胶带之间具有轻微的粘性，因此可以轻易的撕除。当将该背光模组与显示面板进行组装时，可以将该离型膜15撕除，然后利用该遮光胶带12，以及涂抹在背板14周围的无影胶将该背光模组与显示面板进行组装和固定。该可撕除的离型膜不仅可以有效固定该光学膜片，还可以避免光学膜片受到外界灰尘和杂质的污染，有效保证了背光模组的质量。
至少一些实施例中，如图3所示，该光学膜片11可以包括：在该胶框10上依次叠加设置的扩散片110、下棱镜111和上棱镜112。
至少一些实施例中，如图3所示，该背光模组还包括：
在该胶框10内依次叠加设置的反射片16和导光板17，设置有该导光板 17的胶框10上设置有该光学膜片11。
综上所述，上述本发明实施例提供的一种背光模组中，由于光学膜片四边中的至少有一边没有设置该遮光胶带，因此减小了遮光胶带覆盖光学膜片的面积，增加了背光模组可视区域的面积，进而提高了背光模组的可视区域屏占比。
本发明实施例还提供了一种显示装置，该显示装置可以包括图1至图3任一所示的背光模组。该显示装置可以为：液晶面板、电子纸、OLED面板、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
本发明实施例还提供了一种背光模组的组装方法，包括：
提供光学膜片；
在所述光学膜片的四边中的n边设置所述遮光胶带，所述n为小于4的正整数。
在上述背光模组的组装方法中，由于光学膜片四边中的至少有一边没有设置该遮光胶带，因此减小了遮光胶带覆盖光学膜片的面积，增加了背光模组可视区域的面积，进而提高了背光模组的可视区域屏占比。
至少一些实施例中，在所述光学膜片的四边中的n边设置所述遮光胶带包括：通过所述遮光胶带将所述光学膜片粘贴在胶框上。
至少一些实施例中，在所述光学膜片的四边中的n边设置所述遮光胶带包括：在所述光学膜片的四边中的一边设置所述遮光胶带。
至少一些实施例中，所述遮光胶带覆盖所述光学膜片的一边的部分区域。
至少一些实施例中，所述遮光胶带非连续地粘贴在所述光学膜片的一边。
至少一些实施例中，上述组装方法还包括：将所述胶框设置在背板内，所述背板为壳体，且所述胶框的厚度小于所述背板的厚度。示例的，胶框和背板为一体形成。
至少一些实施例中，上述组装方法还包括：将离型膜覆盖在所述光学膜片上，且固定于所述背板上。
图4是本发明实施例提供的一种背光模组的组装方法的流程图，例如用于组装图3所示的背光模组。如图4所示，该组装方法包括：
步骤401、将反射片16设置在胶框10和背板14的一体件内侧的底部。
步骤402、将光源13固定在导光板17的一端。
步骤403、将固定有光源13的导光板17叠加设置在反射片16的上方。
步骤404、将光学膜片11放置在设置有导光板17的胶框10上，并通过背板14四周的挡墙结构对该光学膜片11的设置方位进行限位。
例如，该光学膜片11包括在胶框10上依次叠加设置的扩散片110、下棱镜111和上棱镜112。
步骤405、在该光学膜片11上，靠近光源13的一边粘贴遮光胶带12，并通过该遮光胶带12将光学膜片11粘贴在胶框10上。
步骤406、将离型膜15覆盖在光学膜片11上，并与背板14的四周固定。
综上所述，本发明实施例提供的背光模组装配方法，可以通过背板四周的挡墙结构对光学膜片进行限位，提高了背光模组的装配效率，且遮光胶带仅粘贴在光学膜片上靠近光源的一侧，降低了遮光胶带覆盖光学膜片的面积，有效提高了背光模组的可视区域屏占比。
以上所述仅是本发明的示范性实施方式，而非用于限制本发明的保护范围，本发明的保护范围由所附的权利要求确定。
本申请基于并且要求于2015年10月21日递交的中国专利申请第201520820142.2号的优先权，在此全文引用上述中国专利申请公开的内容。

Claims (20)

  1. 一种背光模组，包括光学膜片和遮光胶带，其中所述光学膜片四边中的n边设置有所述遮光胶带，所述n为小于4的正整数。
  2. 根据权利要求1所述的背光模组，还包括胶框，所述光学膜片通过所述遮光胶带粘贴在所述胶框上。
  3. 根据权利要求2所述的背光模组，其中，所述光学膜片四边中的一边设置有所述遮光胶带。
  4. 根据权利要求1所述的背光模组，其中，所述遮光胶带覆盖所述光学膜片的一边的部分区域。
  5. 根据权利要求4所述的背光模组，其中，所述遮光胶带非连续地粘贴在所述光学膜片的一边。
  6. 根据权利要求3所述的背光模组，其中，所述背光模组还包括：
    光源，所述光源设置在所述胶框内侧且靠近所述遮光胶带所在的一边；
    所述遮光胶带设置在所述光学膜片上。
  7. 根据权利要求3或6所述的背光模组，其中，所述背光模组还包括：
    背板；
    所述背板为壳体，所述胶框设置在所述背板内，且所述胶框的厚度小于所述背板的厚度。
  8. 根据权利要求7所述的背光模组，其中，所述背光模组还包括：
    离型膜；
    所述离型膜覆盖在所述光学膜片上，且固定于所述背板上。
  9. 根据权利要求2至8任一所述的背光模组，其中，所述光学膜片包括：
    在所述胶框上依次叠加设置的扩散片、下棱镜和上棱镜。
  10. 根据权利要求2至8任一所述的背光模组，其中，所述背光模组还包括：
    所述胶框内依次叠加设置的反射片和导光板，设置有所述导光板的胶框上设置有所述光学膜片。
  11. 根据权利要求1至10任一所述的背光模组，其中，所述遮光胶带为条状胶带。
  12. 根据权利要求1至10任一所述的背光模组，其中，所述遮光胶带的宽度为5毫米。
  13. 一种显示装置，包括权利要求1至12任一所述的背光模组。
  14. 一种背光模组的组装方法，包括：
    提供光学膜片；
    在所述光学膜片的四边中的n边设置所述遮光胶带，所述n为小于4的正整数。
  15. 根据权利要求14所述的组装方法，其中，在所述光学膜片的四边中的n边设置所述遮光胶带包括：通过所述遮光胶带将所述光学膜片粘贴在胶框上。
  16. 根据权利要求14或15所述的组装方法，其中，在所述光学膜片的四边中的n边设置所述遮光胶带包括：在所述光学膜片的四边中的一边设置所述遮光胶带。
  17. 根据权利要求14所述的组装方法，其中，所述遮光胶带覆盖所述光学膜片的一边的部分区域。
  18. 根据权利要求17所述的组装方法，其中，所述遮光胶带非连续地粘贴在所述光学膜片的一边。
  19. 根据权利要求15至18任一项所述的组装方法，还包括：将所述胶框设置在背板内，所述背板为壳体，且所述胶框的厚度小于所述背板的厚度。
  20. 根据权利要求19所述的组装方法，还包括：将离型膜覆盖在所述光学膜片上，且固定于所述背板上。
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CN110928052A (zh) * 2019-12-25 2020-03-27 中航华东光电有限公司 一种液晶屏背光模组
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