WO2014153875A1 - 用于固定光学膜片的卡扣、背光模组及液晶显示器 - Google Patents

用于固定光学膜片的卡扣、背光模组及液晶显示器 Download PDF

Info

Publication number
WO2014153875A1
WO2014153875A1 PCT/CN2013/077781 CN2013077781W WO2014153875A1 WO 2014153875 A1 WO2014153875 A1 WO 2014153875A1 CN 2013077781 W CN2013077781 W CN 2013077781W WO 2014153875 A1 WO2014153875 A1 WO 2014153875A1
Authority
WO
WIPO (PCT)
Prior art keywords
connecting portion
pressing portion
hole
buckle
frame
Prior art date
Application number
PCT/CN2013/077781
Other languages
English (en)
French (fr)
Inventor
陈仕祥
俞刚
李德华
Original Assignee
深圳市华星光电技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US13/980,921 priority Critical patent/US9588281B2/en
Publication of WO2014153875A1 publication Critical patent/WO2014153875A1/zh

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0081Mechanical 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
    • G02B6/0086Positioning aspects
    • G02B6/0088Positioning aspects of the light guide or other optical sheets in the package
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0033Means for improving the coupling-out of light from the light guide
    • G02B6/005Means 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
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133308Support structures for LCD panels, e.g. frames or bezels
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133308Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133317Intermediate frames, e.g. between backlight housing and front frame
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F2201/00Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/46Fixing elements
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F2201/00Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/54Arrangements for reducing warping-twist

Definitions

  • This invention relates to the field of liquid crystal displays. More specifically, it relates to a buckle, a backlight module, and a liquid crystal display for fixing an optical film. Background technique
  • the backlight structure has a direct type and a side entry type.
  • the so-called direct type backlight refers to a light source (for example, a cold cathode fluorescent lamp (CCFL) or a light emitting diode (LED)) arranged in an array behind the liquid crystal display panel, and the light emitted by the light source is formed by an optical film such as a diffusion plate or a prism sheet.
  • a uniform surface light source a so-called side-entry backlight means that a light source (for example, an LED light bar) is placed on the side of the liquid crystal display panel, and light emitted from the light source is incident on the light guide plate, and the light source is turned into a uniform light through the light guide plate.
  • a light source for example, an LED light bar
  • one method of the prior art is to form the mounting ear at the edge of the optical film, and then set a positioning post on the back plate; hang the mounting ear of the optical film on the positioning post Then, the plastic frame gland is fixed; another method of the prior art is to directly attach the optical film to the light guide plate by using a tape.
  • the positioning column when positioning the column, the positioning column needs a certain space from the edge of the back plate, which is not conducive to the design of the narrow frame of the liquid crystal display; the latter method is less reliable.
  • the present invention provides a buckle for fixing an optical film
  • the optical film has a mounting ear and is disposed on a frame of the plastic frame, the plastic frame and the back frame
  • the buckle includes a pressing portion and a connecting portion formed by the first side of the pressing portion, wherein the plane of the connecting portion is at a predetermined angle with the plane of the pressing portion
  • the pressing portion of the pressing portion of the optical film is over the frame of the plastic frame, and the connecting portion is engaged with the hook of the side wall of the back frame.
  • the preset angle is 80 degrees to 90 degrees.
  • a positioning post is arranged on the frame of the plastic frame, and the mounting ears of the optical film are provided with positioning holes, and the pressing button
  • the second side of the portion is provided with a semi-circular through hole
  • the connecting portion is provided with a connecting through hole, wherein the positioning hole and the semi-circular through hole are sequentially sleeved on the positioning post, the connecting through hole and the connecting hole
  • the hooks are fixed correspondingly to the hooks.
  • the connecting portion includes a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are connected by a curved connecting portion, and the first connecting portion, the second connecting portion and the curved connecting portion are surrounded by the surrounding to form the Connecting the through hole; the third side and the fourth side of the pressing portion are outwardly extended to form a first flat pressing portion and a second flat pressing portion, respectively, and the third side of the pressing portion and the first flat pressing portion and the pressing button The fourth side of the portion and the second flat portion are respectively connected by two curved portions.
  • the third side and the fourth side of the pressing portion are outwardly extended to form a first flat pressing portion and a second flat pressing portion, respectively, and a joint of the second side and the bottom surface of the pressing portion forms a groove.
  • the frame of the optical frame is provided with a blind hole
  • the mounting ear of the optical film is provided with a positioning hole
  • the second side of the pressing portion is provided with a flange
  • the connecting portion is provided with a connecting through hole, wherein The flange is inserted into the blind hole through the positioning hole, and the connection through hole is fixed to the hook corresponding to the hook.
  • the connecting portion includes a first connecting portion and a second connecting portion, and the first connecting portion and the second connecting portion are connected by a curved connecting portion, and the connection of the first connecting portion, the second connecting portion and the curved connecting portion is surrounded and formed The connecting through hole; the third side and the fourth side of the pressing portion extend outward to form a first flat pressing portion and a second flat pressing portion, respectively, the third side of the pressing portion and the first flat pressing portion, The fourth side of the crimping portion and the second flat pressing portion are respectively connected by two curved portions.
  • the buckle is made of metal or plastic.
  • the invention also provides a backlight module, which comprises a plurality of optical films, a plastic frame, a back frame and a plurality of the above-mentioned buckles.
  • the optical film is arranged on the frame of the plastic frame, and the combination of the plastic frame and the back frame will guide
  • the light plate is fixed in the back frame, and the buckle covers the optical film and connects the hooks of the side walls of the back frame to fix the optical film.
  • the present invention also provides a liquid crystal display comprising a liquid crystal display panel and the above-mentioned backlight module.
  • the liquid crystal display panel is disposed opposite to the backlight module, and the backlight module provides a light source to the liquid crystal display panel.
  • FIG. 1 is a schematic diagram showing a global view of a backlight module according to Embodiment 1 of the present invention.
  • Fig. 2 is a schematic exploded perspective view showing the partial A region of Fig. 1.
  • Fig. 3 is a cross-sectional enlarged schematic view showing a portion A of Fig. 1.
  • Fig. 4 is a view showing the structure of a buckle according to Embodiment 2 of the present invention.
  • FIG. 5 is a partially exploded exploded view of a backlight module according to Embodiment 2 of the present invention.
  • Fig. 6 is a view showing the structure of a buckle according to Embodiment 3 of the present invention.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT(S) The present invention is described in detail with reference to the accompanying drawings. The embodiments are described below to explain the present invention by referring to the figures. In the following description, unnecessary details of well-known structures and/or functions may be omitted in order to avoid obscuring the present inventive concept in order to avoid unnecessary details of the structure and/or function.
  • Embodiment 1 is a view showing a global view of a backlight module according to Embodiment 1 of the present invention.
  • a backlight module according to Embodiment 1 of the present invention includes: a plurality of buckles 1 , a plastic frame 2 , a back frame 3 , a light guide plate 4 , and a plurality of optical films 5 .
  • Each of the optical films 5 has a mounting lug 51 on a side thereof, and a positioning hole 511 is formed in the lug 51.
  • the plastic frame 2 includes a frame 21 on which a positioning post 211 is disposed.
  • a hook 311 is disposed on the side wall 31 of the back frame 3.
  • Each of the buckles 1 includes a pressing portion 11 and a connecting portion 12 extending from the first side 111 of the pressing portion 11.
  • the plane of the connecting portion 12 is at a predetermined angle with the plane of the pressing portion 11.
  • the second side 112 of the pressing portion 11 is provided with a semi-circular through hole 1121, and the connecting portion 12 is provided with a connecting through hole 124.
  • a plurality of optical films 5 are disposed on the plastic frame 2 in order, so that the positioning holes 511 of the mounting ears 51 of each optical film 5 are fitted to the positioning posts on the frame 21 of the plastic frame 2. 211.
  • the semi-circular through hole 1121 of the pressing portion 11 of each buckle 1 is engaged with the positioning post 211 on the frame 21 of the plastic frame 2, and the connecting through hole 124 of the connecting portion 12 of the buckle 1 and the side wall of the back frame 3
  • the hook 311 is fixed correspondingly to the hook. In this way, the fixation of the optical film 5 can be achieved.
  • the number and location of the buckles 1 are not limited to FIG. 1 .
  • the buckles 1 may also be disposed on the two short sides of the backlight module.
  • the predetermined angle formed by the plane where the connecting portion 12 is located and the plane in which the pressing portion 11 is located may be 80 degrees, 85 degrees or 90 degrees, but the present invention does not This is limited to this.
  • the third side 113 and the fourth side 114 of the pressing portion 11 extend outward to form a first flat pressing portion 1131 and a second flat pressing portion 1141, respectively.
  • the third side 113 of the pressing portion 11 is connected to the first flat pressing portion 1131 through a curved portion 115, and the fourth side 114 of the pressing portion 11 and the second flat pressing portion 1131 are connected by another curved portion 115.
  • the pressing portion 1131 and the second flat pressing portion 1141 are in the same plane, and the plane where the two are located is parallel to the plane in which the pressing portion 11 is located.
  • the curved portion 115 due to the presence of the curved portion 115, there is a certain distance between the same plane where the first flat pressing portion 1131 and the second flat pressing portion 1141 are located and the plane where the pressing portion 11 is located, which is exactly equivalent to several opticals.
  • the thickness of the diaphragm 5 is stacked, and the length of the pressing portion 11 also matches the length of the mounting bracket 51, so that the plurality of optical films 5 can be accommodated by the pressing portion 11, the first flat portion 1131, and the second The flat pressure portion 1141 is formed in a space.
  • the connecting portion 12 includes a first connecting portion 121 and a second connecting portion 122.
  • the first connecting portion 121 and the second connecting portion 122 are connected by a curved connecting portion 123, the first connecting portion 121, the second connecting portion 122 and the curved connection
  • the portion 123 surrounds and surrounds the connecting through hole 124.
  • the plane in which the first connecting portion 121 is located is parallel to the plane in which the second connecting portion 122 is located, but there is a certain distance between the planes where the two are located.
  • the shape of the connecting through hole 124 formed can better match the back frame 3
  • the hook 311 of the side wall is shaped such that the connecting through hole 124 is better fixedly engaged with the hook 311.
  • the material of the buckle 1 may be a metal material such as an electrogalvanized steel sheet (SECC), a hot dip galvanized steel sheet (SGCC) or an AL5052 aluminum alloy, or may be a polyethylene terephthalate (PET). ), plastic materials such as polybutylene terephthalate (PBT), polycarbonate (PC) or acrylonitrile-butadiene-styrene (ABS).
  • SECC electrogalvanized steel sheet
  • SGCC hot dip galvanized steel sheet
  • AL5052 aluminum alloy aluminum alloy
  • PET polyethylene terephthalate
  • plastic materials such as polybutylene terephthalate (PBT), polycarbonate (PC) or acrylonitrile-butadiene-styrene (ABS).
  • FIG. 4 is a structural view showing a buckle according to Embodiment 2 of the present invention.
  • FIG. 5 is a partially exploded exploded view of a backlight module according to Embodiment 2 of the present invention.
  • the buckle according to Embodiment 2 of the present invention is different from the buckle of Embodiment 1 in that the second side 112 of the pressing portion 11 of the buckle 1 is provided with a flange 1122, which is glued.
  • a blind hole 212 is provided in the frame 21 of the frame.
  • FIG. 6 is a structural view showing a buckle according to Embodiment 3 of the present invention.
  • the buckle according to Embodiment 3 of the present invention is different from the buckle of Embodiment 1 in that the third flat portion 113 of the press fastening portion 11 extends outward to form a plane in which the first flat pressing portion 1131 is located.
  • the plane where the second flat pressing portion 1141 formed by the fourth side 114 of the pressing portion 11 is located and the plane where the pressing portion 11 is located are in the same plane; the plane where the first connecting portion 121 is located and the second connecting portion 122 The plane in which the plane is located is in the same plane; the connection between the second side 112 of the pressing portion 11 and the bottom surface 116 of the pressing portion forms a groove 117, and the size of the groove 117 matches the size of the mounting ear of the optical film, so that The mounting ears can be received in the recesses 117.
  • the backlight module of the above embodiment of the present invention can be used in a liquid crystal display to provide a light source to a liquid crystal display panel, so that the liquid crystal display panel displays an image.
  • the narrow frame of the liquid crystal display can be realized by the above design, and at the same time, the fixing reliability of the optical film can be improved.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

用于固定光学膜片(5)的卡扣(1)、包括该卡扣(1)的背光模组和液晶显示器。其中光学膜片(5)具有挂耳(51)并且设置于胶框(2)的边框(21)上,胶框(2)与背框(3)的结合将导光板(4)固定于背框(3)之中,所述卡扣(1)包括压扣部(11)及由压扣部(11)的第一侧(111)延伸形成的连接部(12),连接部(12)所在的平面与压扣部(11)所在的平面成一预设角度,其中,压扣部(11)压盖光学膜片(5)的挂耳(51)于胶框(2)的边框(21)之上,连接部(12)与背框(3)的侧壁(31)的卡扣(1)连接卡合。本发明的用于固定光学膜片(5)的卡扣(1),可实现液晶显示器的窄边框化,同时,能够提高光学膜片(5)的固定可靠性。

Description

用于固定光学膜片的卡扣、 背光模组及液晶显示器 技术领域
本发明涉及液晶显示领域。 更具体地讲, 是涉及一种用于固定光学膜片的 卡扣、 背光模组及液晶显示器。 背景技术
在液晶显示器中, 由于液晶显示面板不能自发光, 因此需要背光源为液晶 显示面板提供光源。 现有技术中, 背光源结构有直下式以及侧入式。 所谓的直 下式背光源是指光源(例如、冷阴极荧光灯管(CCFL)或发光二极管(LED) ) 在液晶显示面板后方列阵布置, 光源发出的光线通过扩散板、 棱镜片等光学膜 片形成均匀的面光源; 所谓的侧入式背光源是指光源(例如, LED灯条)置于 液晶显示面板的侧边, 光源发出的光线入射到导光板, 通过导光板把线光源转 为均匀的面光源。
对于液晶显示器中的光学膜片的固定,现有技术的一种方法是在光学膜片的边 缘成型挂耳, 然后在背板上设置定位柱; 将光学膜片的挂耳挂在定位柱上, 然 后胶框压盖固定; 现有技术的另一种方法是使用胶带直接将光学膜片粘贴在导 光板上固定。 但前一种方法在设置定位柱时, 定位柱需要距离背板边缘一定空 间, 这样将不利于液晶显示器的窄边框的设计; 后一种方法则可靠性较差。 发明内容 为了解决上述现有技术存在的问题, 本发明提供了一种用于固定光学膜片 的卡扣, 光学膜片具有挂耳并且设置于胶框的边框之上, 胶框与背框的结合将 导光板固定于背框之中, 所述卡扣包括压扣部及由压扣部的第一侧延伸形成的 连接部, 连接部所在的平面与压扣部所在的平面成一预设角度, 其中, 压扣部 压盖光学膜片的挂耳于胶框的边框之上, 连接部与背框的侧壁的卡钩连接卡 合。 此外, 所述预设角度为 80度〜 90度。 此外, 胶框的边框上设有定位柱, 光学膜片的挂耳设有定位孔, 所述压扣 部的第二侧设有半圆通孔, 所述连接部设有连接通孔, 其中, 所述定位孔、 所 述半圆通孔依次套合于所述定位柱, 所述连接通孔与所述卡钩对应卡合固定。 此外, 所述连接部包括第一连接部和第二连接部, 第一连接部与第二连接 部通过弯曲连接部连接, 第一连接部、 第二连接部和弯曲连接部环绕包围形成 所述连接通孔; 所述压扣部的第三侧、 第四侧向外延伸分别形成第一平压部、 第二平压部, 压扣部的第三侧与第一平压部、 压扣部的第四侧与第二平压部分 别通过两个弯曲部连接。 此外, 所述压扣部的第三侧、 第四侧向外延伸分别形成第一平压部、 第二 平压部, 所述压扣部的第二侧和底面的连接处形成凹槽。 此外, 胶框的边框上设有盲孔, 光学膜片的挂耳设有定位孔, 所述压扣部 的第二侧设有凸缘, 所述连接部设有连接通孔, 其中, 所述凸缘通过所述定位 孔插入所述盲孔, 所述连接通孔与所述卡钩对应卡勾固定。 此外, 所述连接部包括第一连接部和第二连接部, 第一连接部与第二连接 部通过弯曲连接部连接, 第一连接部、 第二连接部和弯曲连接部的连接环绕包 围形成所述连接通孔; 所述压扣部的第三侧、 第四侧向外延伸分别形成第一平 压部、 第二平压部, 压扣部的第三侧与第一平压部、 压扣部的第四侧与第二平 压部分别通过两个弯曲部连接。 此外, 所述卡扣的材质为金属或塑料。 本发明还提供了一种背光模组, 包括若干光学膜片、 胶框、 背框和若干上 述的卡扣, 光学膜片设置于胶框的边框之上, 胶框与背框的结合将导光板固定 于背框之中, 所述卡扣压盖光学膜片并连接背框的侧壁的卡钩而将光学膜片固 定。
本发明还提供了一种液晶显示器, 包括液晶显示面板及上述的背光模组, 液晶显示面板与所述背光模组相对设置, 所述背光模组提供光源给液晶显示面 板。
根据本发明的用于固定光学膜片的卡扣、 背光模组及液晶显示器, 可实现 液晶显示器的窄边框化, 同时, 能够提高光学膜片的固定可靠性。 附图说明 图 1示出了根据本发明的实施例 1的背光模组的全局示意图。 图 2示出了图 1中的局部 A区域的爆炸分解放大示意图。 图 3示出了图 1中的局部 A区域的剖切放大示意图。 图 4示出了根据本发明的实施例 2的卡扣的结构图。 图 5示出了根据本发明的实施例 2的背光模组的局部爆炸分解示意图。 图 6示出了根据本发明的实施例 3的卡扣的结构图。 具体实施方式 在对本发明实施例进行详细的描述, 其示例表示在附图中, 其中, 相同的 标号始终表示相同部件。 下面通过参照附图对实施例进行描述以解释本发明。 在下面的描述中,为了避免公知结构和 /或功能的不必要的详细描述所导致的本 发明构思的混淆, 可省略公知结构和 /或功能的不必要的详细描述。 实施例 1 图 1示出了根据本发明的实施例 1的背光模组的全局示意图。 图 2示出了 图 1中的局部 A区域的爆炸分解放大示意图。 图 3示出了图 1中的局部 A区 域的剖切放大示意图。 参照图 1、 图 2和图 3, 根据本发明的实施例 1的背光模组包括: 若干卡 扣 1、 胶框 2、 背框 3、 导光板 4和若干光学膜片 5。 每一光学膜片 5的侧边具有挂耳 51,在挂耳 51上设有定位孔 511。胶框 2 包括有边框 21,在边框 21上设有定位柱 211。背框 3的侧壁 31上设有卡钩 311。 每一卡扣 1包括压扣部 11及由压扣部 11的第一侧 111延伸而成的连接部 12, 连接部 12所在的平面与压扣部 11所在的平面成一预设角度。 压扣部 11 的第二侧 112设有半圆通孔 1121, 连接部 12上设有连接通孔 124。 在组装背光模组时, 导光板 4设置于背框 3之中, 胶框 2与背框 3的结合 将导光板 4固定于背框 3之中。将若干光学膜片 5按照顺序设置于胶框 2之上, 使每一光学膜片 5的挂耳 51的定位孔 511套合于胶框 2的边框 21上的定位柱 211。 每一卡扣 1的压扣部 11的半圆通孔 1121套合与胶框 2的边框 21上的定 位柱 211, 并且卡扣 1的连接部 12的连接通孔 124与背框 3的侧壁的卡钩 311 对应卡合固定。 如此, 可实现光学膜片 5的固定。 需要说明的是, 卡扣 1的数 量及所在位置并不以图 1为限,例如卡扣 1也可以设置于背光模组的两短侧边。 为了使连接部 12能够与卡钩 311卡合更加牢固, 连接部 12所在的平面与 压扣部 11所在的平面形成的预设角度可为 80度、 85度或 90度, 但本发明并 不以此为限。 此外, 为了更加牢固地将若干光学膜片 5压盖固定, 压扣部 11 的第三侧 113、 第四侧 114向外延伸分别形成第一平压部 1131、 第二平压部 1141。 压扣 部 11的第三侧 113与第一平压部 1131通过一个弯曲部 115连接, 压扣部 11 的第四侧 114与第二平压部 1131通过另一个弯曲部 115连接,第一平压部 1131 与第二平压部 1141处于同一平面, 且二者所在的平面与压扣部 11所在的平面 平行。这里, 由于弯曲部 115的存在,可使第一平压部 1131与第二平压部 1141 所在的同一平面与压扣部 11 所在的平面之间具有一定的距离, 该距离正好相 当于若干光学膜片 5堆叠起来的厚度, 而且压扣部 11 的长度也正好匹配挂耳 51的长度, 这样可将若干光学膜片 5容置于由压扣部 11、 第一平压部 1131及 第二平压部 1141形成的空间中。另外,在压盖光学膜片 5时,第一平压部 1131 与第二平压部 1141正好对应压合于边框 21上设有的收容槽 212中, 更好地紧 固光学膜片 5。 此外, 连接部 12包括第一连接部 121和第二连接部 122, 第一连接部 121 与第二连接部 122通过弯曲连接部 123连接,第一连接部 121、第二连接部 122 和弯曲连接部 123环绕包围形成上述连接通孔 124。 第一连接部 121所在的平 面与第二连接部 122所在的平面平行, 但二者所在的平面之间有一定的距离, 这样, 形成的连接通孔 124的形状可较好地匹配背框 3的侧壁的卡钩 311的形 状, 使得连接通孔 124与卡钩 311更好地固定卡合。 另外, 需要说明的是, 卡扣 1的材质可为电镀锌钢板 (SECC)、 热浸锌钢 板 (SGCC) 或 AL5052铝合金等金属材料, 也可以为聚对苯二甲酸乙二醇酯 (PET), 聚对苯二甲酸丁二酯 (PBT)、 聚碳酸酯 (PC ) 或丙烯腈 -丁二烯-苯 乙烯 (ABS ) 等塑料材料。 实施例 2 图 4示出了根据本发明的实施例 2的卡扣的结构图。 图 5示出了根据本发 明的实施例 2的背光模组的局部爆炸分解示意图。 在实施例 2的描述中, 与实施例 1中相同的内容在此不再赘述, 只说明与 实施例 1不同的内容。 参照图 4、 图 5, 根据本发明的实施例 2的卡扣与上述 实施例 1中的卡扣不同的是,卡扣 1的压扣部 11的第二侧 112设有凸缘 1122, 胶框的边框 21上设有盲孔 212。在组装背光模组时,将若干光学膜片 5按照顺 序设置于胶框 2之上,使每一光学膜片 5的挂耳 51的定位孔 511对置于胶框 2 的边框 21上的盲孔 212。 卡扣 1的压扣部 11的凸缘 1122穿过每一定位孔 511 后插入盲孔 212中, 并且卡扣 1的连接部 12的连接通孔 124与背框的侧壁 31 的卡钩 311对应卡合固定。 如此, 可实现光学膜片 5的固定。 实施例 3 图 6示出了根据本发明的实施例 3的卡扣的结构图。 在实施例 3的描述中, 与实施例 1中相同的内容在此不再赘述, 只说明与 实施例 1不同的内容。 参照图 6, 根据本发明的实施例 3的卡扣与上述实施例 1中的卡扣不同的是,压扣部 11的第三侧 113向外延伸形成的第一平压部 1131 所在的平面、 压扣部 11的第四侧 114向外延伸形成的第二平压部 1141所在的 平面和压扣部 11所在的平面处于同一平面; 第一连接部 121所在的平面和第 二连接部 122所在的平面处于同一平面; 压扣部 11的第二侧 112与压扣部的 底面 116的连接处形成凹槽 117, 凹槽 117的大小与光学膜片的挂耳的大小相 匹配, 使若干挂耳可以容置于凹槽 117中。 本发明的上述实施例的背光模组可用于液晶显示器中向液晶显示面板提 供光源, 以使液晶显示面板显示影像。 根据本发明的实施例的卡扣、 背光模组及液晶显示器, 通过上述的设计, 可实现液晶显示器的窄边框化, 同时, 能够提高光学膜片的固定可靠性。 尽管已经参照其示例性实施例具体显示和描述了本发明,但是本领域的技 术人员应该理解, 在不脱离权利要求所限定的本发明的精神和范围的情况下, 可以对其进行形式和细节上的各种改变。

Claims

权利要求书
1、 一种用于固定光学膜片的卡扣, 光学膜片具有挂耳并且设置于胶框的 边框之上, 胶框与背框的结合将导光板固定于背框之中, 其中, 所述卡扣包括 压扣部及由压扣部的第一侧延伸形成的连接部, 连接部所在的平面与压扣部所 在的平面成一预设角度,其中,压扣部压盖光学膜片的挂耳于胶框的边框之上, 连接部与背框的侧壁的卡钩连接卡合。
2、 根据权利要求 1所述的卡扣, 其中, 所述预设角度为 80度〜 90度。
3、 根据权利要求 1所述的卡扣, 其中, 胶框的边框上设有定位柱, 光学 膜片的挂耳设有定位孔, 所述压扣部的第二侧设有半圆通孔, 所述连接部设有 连接通孔, 其中, 所述定位孔、 所述半圆通孔依次套合于所述定位柱, 所述连 接通孔与所述卡钩对应卡合固定。
4、 根据权利要求 3所述的卡扣, 其中, 所述连接部包括第一连接部和第 二连接部, 第一连接部与第二连接部通过弯曲连接部连接, 第一连接部、 第二 连接部和弯曲连接部环绕包围形成所述连接通孔; 所述压扣部的第三侧、 第四 侧向外延伸分别形成第一平压部、第二平压部,压扣部的第三侧与第一平压部、 压扣部的第四侧与第二平压部分别通过两个弯曲部连接。
5、 根据权利要求 3所述的卡扣, 其中, 所述压扣部的第三侧、 第四侧向 外延伸分别形成第一平压部、 第二平压部, 所述压扣部的第二侧和底面的连接 处形成凹槽。
6、 根据权利要求 1所述的卡扣, 其中, 胶框的边框上设有盲孔, 光学膜 片的挂耳设有定位孔, 所述压扣部的第二侧设有凸缘, 所述连接部设有连接通 孔, 其中, 所述凸缘通过所述定位孔插入所述盲孔, 所述连接通孔与所述卡钩 对应卡勾固定。
7、 根据权利要求 6所述的卡扣, 其中, 所述连接部包括第一连接部和第 二连接部, 第一连接部与第二连接部通过弯曲连接部连接, 第一连接部、 第二 连接部和弯曲连接部的连接环绕包围形成所述连接通孔; 所述压扣部的第三 侧、 第四侧向外延伸分别形成第一平压部、 第二平压部, 压扣部的第三侧与第 一平压部、 压扣部的第四侧与第二平压部分别通过两个弯曲部连接。
8、 根据权利要求 1所述的卡扣, 其中, 所述卡扣的材质为金属。
9、 根据权利要求 1所述的卡扣, 其中, 所述卡扣的材质为塑料。
10、 一种背光模组, 包括若干光学膜片、 胶框、 背框和若干卡扣, 光学膜 片设置于胶框的边框之上, 胶框与背框的结合将导光板固定于背框之中, 所述 卡扣压盖光学膜片并连接背框的侧壁的卡钩而将光学膜片固定, 其中, 所述卡 扣为权利要求 1所述的卡扣。
11、 根据权利要求 10所述的背光模组, 其中, 所述预设角度为 80度〜 90
12、 根据权利要求 10所述的背光模组, 其中, 胶框的边框上设有定位柱, 光学膜片的挂耳设有定位孔, 所述压扣部的第二侧设有半圆通孔, 所述连接部 设有连接通孔, 其中, 所述定位孔、 所述半圆通孔依次套合于所述定位柱, 所 述连接通孔与所述卡钩对应卡合固定。
13、 根据权利要求 12所述的背光模组, 其中, 所述连接部包括第一连接 部和第二连接部,第一连接部与第二连接部通过弯曲连接部连接,第一连接部、 第二连接部和弯曲连接部环绕包围形成所述连接通孔; 所述压扣部的第三侧、 第四侧向外延伸分别形成第一平压部、 第二平压部, 压扣部的第三侧与第一平 压部、 压扣部的第四侧与第二平压部分别通过两个弯曲部连接。
14、 根据权利要求 12所述的背光模组, 其中, 所述压扣部的第三侧、 第 四侧向外延伸分别形成第一平压部、 第二平压部, 所述压扣部的第二侧和底面 的连接处形成凹槽。
15、 根据权利要求 10所述的背光模组, 其中, 胶框的边框上设有盲孔, 光学膜片的挂耳设有定位孔, 所述压扣部的第二侧设有凸缘, 所述连接部设有 连接通孔, 其中, 所述凸缘通过所述定位孔插入所述盲孔, 所述连接通孔与所 述卡钩对应卡勾固定。
16、 根据权利要求 15所述的背光模组, 其中, 所述连接部包括第一连接 部和第二连接部,第一连接部与第二连接部通过弯曲连接部连接,第一连接部、 第二连接部和弯曲连接部的连接环绕包围形成所述连接通孔; 所述压扣部的第 三侧、 第四侧向外延伸分别形成第一平压部、 第二平压部, 压扣部的第三侧与 第一平压部、 压扣部的第四侧与第二平压部分别通过两个弯曲部连接。
17、 根据权利要求 10所述的背光模组, 其中, 所述卡扣的材质为塑料。
18、 根据权利要求 10所述的背光模组, 其中, 所述卡扣的材质为金属。
19、 一种液晶显示器, 包括液晶显示面板及背光模组, 液晶显示面板与背 光模组相对设置, 背光模组提供光源给液晶显示面板, 其中, 所述背光模组为 权利要求 10所述的背光模组。
PCT/CN2013/077781 2013-03-29 2013-06-24 用于固定光学膜片的卡扣、背光模组及液晶显示器 WO2014153875A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/980,921 US9588281B2 (en) 2013-03-29 2013-06-24 Snap-fit for fixing optical film, and backlight module and liquid crystal display with the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310110077.X 2013-03-29
CN201310110077.XA CN103148459B (zh) 2013-03-29 2013-03-29 用于固定光学膜片的卡扣、背光模组及液晶显示器

Publications (1)

Publication Number Publication Date
WO2014153875A1 true WO2014153875A1 (zh) 2014-10-02

Family

ID=48546684

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/077781 WO2014153875A1 (zh) 2013-03-29 2013-06-24 用于固定光学膜片的卡扣、背光模组及液晶显示器

Country Status (3)

Country Link
US (2) US9588281B2 (zh)
CN (1) CN103148459B (zh)
WO (1) WO2014153875A1 (zh)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103148459B (zh) * 2013-03-29 2014-12-10 深圳市华星光电技术有限公司 用于固定光学膜片的卡扣、背光模组及液晶显示器
CN103672600B (zh) * 2013-12-02 2016-08-17 京东方科技集团股份有限公司 一种背光模组及显示装置
CN106461173B (zh) * 2014-05-23 2018-05-01 夏普株式会社 照明装置和显示装置
TWI561868B (en) * 2014-05-23 2016-12-11 Radiant Opto Electronics Corp Back plate assembly and backlight module
CN104089216B (zh) 2014-06-05 2017-01-18 京东方科技集团股份有限公司 背光源和显示装置
KR102164261B1 (ko) 2014-08-08 2020-10-13 엘지디스플레이 주식회사 광학시트 고정수단을 구비하는 액정표시장치
CN104197242B (zh) * 2014-08-22 2017-02-08 京东方科技集团股份有限公司 背光模组及显示装置
WO2016084233A1 (ja) * 2014-11-28 2016-06-02 堺ディスプレイプロダクト株式会社 バックライト装置及び液晶表示装置
CN104566030B (zh) * 2014-12-29 2017-08-15 深圳创维-Rgb电子有限公司 背光模组和电视
CN104728681B (zh) * 2015-04-03 2017-03-22 京东方科技集团股份有限公司 背光模组及显示装置
CN104698676A (zh) * 2015-04-08 2015-06-10 深圳市同方光电科技有限公司 液晶膜组及其光学膜片组的定位结构
JP6483267B2 (ja) * 2015-08-31 2019-03-13 堺ディスプレイプロダクト株式会社 表示装置
CN107121833A (zh) * 2016-02-25 2017-09-01 瑞仪光电(苏州)有限公司 背光模块
CN206162012U (zh) * 2016-11-10 2017-05-10 合肥鑫晟光电科技有限公司 背光模组和显示装置
CN106547131A (zh) * 2017-01-13 2017-03-29 奥英光电(苏州)有限公司 一种lcm模组
CN206773348U (zh) * 2017-06-14 2017-12-19 京东方科技集团股份有限公司 背光模组和终端
KR102360611B1 (ko) * 2017-07-13 2022-02-09 엘지전자 주식회사 디스플레이 디바이스
CN206906751U (zh) * 2017-07-27 2018-01-19 深圳Tcl新技术有限公司 液晶显示设备
CN107861270B (zh) * 2017-09-19 2020-12-08 苏州乐轩科技有限公司 显示设备及其组装与拆卸方法
CN107479254A (zh) * 2017-09-22 2017-12-15 青岛海信电器股份有限公司 一种背板、背光模组和液晶显示装置
CN109319265B (zh) * 2018-09-30 2024-04-19 浙江凯阳新材料股份有限公司 一种用于箱体内物件的定位结构
CN109298559B (zh) * 2018-10-19 2020-11-24 惠州市华星光电技术有限公司 一种背板、背光模组及显示装置
CN109375414B (zh) * 2018-10-23 2020-11-10 惠州市华星光电技术有限公司 一种背光模组
TWI684813B (zh) * 2018-11-09 2020-02-11 大陸商瑞儀(廣州)光電子器件有限公司 框架組件、背光模組及顯示裝置
CN209215812U (zh) * 2018-12-27 2019-08-06 深圳Tcl新技术有限公司 一种直下式背光模组及显示器
CN109765715B (zh) * 2019-03-22 2022-06-21 深圳市万普拉斯科技有限公司 液晶显示模组
CN110208988A (zh) * 2019-06-29 2019-09-06 厦门天马微电子有限公司 一种背光模组和车载显示屏
CN110515235A (zh) * 2019-08-06 2019-11-29 深圳市兆驰股份有限公司 液晶显示装置及其直下式背光模组和背板
CN211087786U (zh) * 2020-02-24 2020-07-24 北京京东方显示技术有限公司 一种背光模组及显示装置
TWI766587B (zh) * 2021-02-23 2022-06-01 瑞儀光電股份有限公司 框架組件、背光模組及顯示裝置
CN115128864A (zh) 2021-03-24 2022-09-30 瑞轩科技股份有限公司 显示装置、背光模块以及背光模块的组装方法
CN112882290B (zh) * 2021-03-29 2022-09-06 厦门天马微电子有限公司 背光模组及显示装置
TWI829163B (zh) * 2022-03-17 2024-01-11 瑞儀光電股份有限公司 背光模組及顯示裝置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6552761B1 (en) * 1999-04-19 2003-04-22 Lg. Philips Lcd Co., Ltd. Back light for a liquid crystal display device
US20060088270A1 (en) * 2004-10-27 2006-04-27 Chia-Rung Fan Assembly structure of optical film and frame
CN101266361A (zh) * 2008-04-30 2008-09-17 达辉(上海)电子有限公司 背光模块及其框架和固定元件
CN101308287A (zh) * 2008-07-15 2008-11-19 友达光电股份有限公司 背光模块与光学膜片的固定方法
CN101672991A (zh) * 2008-09-08 2010-03-17 苏州璨宇光学有限公司 可拆卸式固定组件
CN102494308A (zh) * 2011-12-02 2012-06-13 深圳市华星光电技术有限公司 背光模组的光学膜片的定位勾
CN202675169U (zh) * 2012-06-25 2013-01-16 京东方科技集团股份有限公司 一种光学膜片固定装置、背光源及液晶显示器
CN103148459A (zh) * 2013-03-29 2013-06-12 深圳市华星光电技术有限公司 用于固定光学膜片的卡扣、背光模组及液晶显示器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002196312A (ja) * 2000-12-25 2002-07-12 Hitachi Ltd 液晶表示装置
KR100757794B1 (ko) * 2001-09-03 2007-09-11 삼성전자주식회사 액정 표시 모듈 및 이를 갖는 액정 표시 장치
CN201724152U (zh) * 2010-02-11 2011-01-26 辅祥实业股份有限公司 光学膜片与胶框的组装结构

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6552761B1 (en) * 1999-04-19 2003-04-22 Lg. Philips Lcd Co., Ltd. Back light for a liquid crystal display device
US20060088270A1 (en) * 2004-10-27 2006-04-27 Chia-Rung Fan Assembly structure of optical film and frame
CN101266361A (zh) * 2008-04-30 2008-09-17 达辉(上海)电子有限公司 背光模块及其框架和固定元件
CN101308287A (zh) * 2008-07-15 2008-11-19 友达光电股份有限公司 背光模块与光学膜片的固定方法
CN101672991A (zh) * 2008-09-08 2010-03-17 苏州璨宇光学有限公司 可拆卸式固定组件
CN102494308A (zh) * 2011-12-02 2012-06-13 深圳市华星光电技术有限公司 背光模组的光学膜片的定位勾
CN202675169U (zh) * 2012-06-25 2013-01-16 京东方科技集团股份有限公司 一种光学膜片固定装置、背光源及液晶显示器
CN103148459A (zh) * 2013-03-29 2013-06-12 深圳市华星光电技术有限公司 用于固定光学膜片的卡扣、背光模组及液晶显示器

Also Published As

Publication number Publication date
US9778412B2 (en) 2017-10-03
US20160004007A1 (en) 2016-01-07
CN103148459A (zh) 2013-06-12
CN103148459B (zh) 2014-12-10
US20170139124A1 (en) 2017-05-18
US9588281B2 (en) 2017-03-07

Similar Documents

Publication Publication Date Title
WO2014153875A1 (zh) 用于固定光学膜片的卡扣、背光模组及液晶显示器
EP3452870B1 (en) Backlight module and a liquid crystal display apparatus having the same
US9389449B2 (en) Flat panel type image display device and assembly method thereof
US8462291B2 (en) Backlight module with film positioning function and display device using the same
JP2009176544A (ja) 液晶モジュール
TW201335677A (zh) 背光模組及使用其之顯示裝置
WO2022116658A1 (zh) 显示装置
US9507078B2 (en) Black light module with mount and displaying apparatus therewith
US20140118994A1 (en) Display module and display apparatus having the same
JP6167522B2 (ja) 表示装置
US20120200767A1 (en) Display Apparatus Including Receiving Container Receiving a Camera Module and a Display Panel
US20160124268A1 (en) Display device and television receiver
US20130100356A1 (en) Display device and television device
JP5722946B2 (ja) バックキャビネット、表示装置、および、テレビジョン受像器
WO2013143204A1 (zh) 液晶显示装置及其一背光模块
JP5646001B2 (ja) 直下型バックライトおよびテレビジョン受像機
JP5726947B2 (ja) 表示装置、及び、テレビジョン受像器
JP5651735B2 (ja) 表示装置およびテレビジョン受像機
JP5918338B2 (ja) 直下型バックライトおよびテレビジョン受像機
JP5722945B2 (ja) バックキャビネット、表示装置、および、テレビジョン受像器
JP5651734B2 (ja) 表示装置およびテレビジョン受像機
JP2017005348A (ja) 表示装置及びテレビジョン受信機
JP5732102B2 (ja) 表示装置、及び、テレビジョン受像器
JP5651736B2 (ja) 表示装置およびテレビジョン受像機
JP2004319294A (ja) バックライト

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 13980921

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13880317

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13880317

Country of ref document: EP

Kind code of ref document: A1