WO2016101371A1 - 背光模组及显示器 - Google Patents

背光模组及显示器 Download PDF

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Publication number
WO2016101371A1
WO2016101371A1 PCT/CN2015/070893 CN2015070893W WO2016101371A1 WO 2016101371 A1 WO2016101371 A1 WO 2016101371A1 CN 2015070893 W CN2015070893 W CN 2015070893W WO 2016101371 A1 WO2016101371 A1 WO 2016101371A1
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WO
WIPO (PCT)
Prior art keywords
layer
light guide
backlight module
disposed
optical film
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/CN2015/070893
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English (en)
French (fr)
Inventor
周革革
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
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 Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US14/431,014 priority Critical patent/US9766394B2/en
Publication of WO2016101371A1 publication Critical patent/WO2016101371A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • G—PHYSICS
    • G02—OPTICS
    • 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
    • G02B6/0055—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/13332—Front frames
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133322—Mechanical guidance or alignment of LCD panel support components
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—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
    • 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
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements

Definitions

  • the present invention relates to the field of liquid crystal display technology, and in particular, to a backlight module and a display.
  • liquid crystal display devices have been widely used as display components of electronic devices in various electronic products, and the borders of these electronic devices are becoming narrower and narrower, and the brightness requirements are also higher and higher, and at the same time meeting the requirements of power saving;
  • the backlight module is an important component in the liquid crystal display device, and the light-in efficiency of the light bar is bound to be higher and higher.
  • a backlight module includes: a light guide plate, an optical film, a plastic frame disposed around the light guide plate, a light source flexible circuit board, and a light shielding tape, wherein the optical film passes through the light shielding double-sided tape. It is fixed on the plastic frame, and the liquid crystal display is fixed around the backlight unit through double-sided tape.
  • the attachment area of the liquid crystal display and the double-sided tape is large, the attachment area of the optical film and the double-sided tape is small, and the double-sided tape occurs when the liquid crystal display panel and the optical film are separated in the rework. Residual on the panel, and the optical film is misaligned or scratched, resulting in the backlight unit being scrapped and reducing the production yield.
  • the technical problem to be solved by the present invention is to provide a backlight module and a display to ensure the quality of the optical film and improve the production yield.
  • the invention provides a backlight module, comprising a back plate, a plastic frame, a light guide plate and an optical film.
  • the optical film comprises a first layer and a second layer superposed on the first layer, the second layer a limiting portion is provided, the limiting portion includes an extending portion, a connecting portion and a carrying portion disposed in parallel with the extending portion, the connecting portion connecting the carrying portion and the extending portion, and the extending portion is formed by the second layer
  • One end extending to form the optical a film is superposed on the light guide plate, the first layer is in contact with the light guide plate, and the plastic frame surrounds the first layer of the light guide plate and the optical film and is disposed in the back plate,
  • the connecting segments are located outside the two sides of the backboard, and the opposite side edges of the plastic frame and the backboard are limited between the carrying section and the extended section.
  • the backlight module further includes a double-sided tape, and the double-sided tape is disposed on an edge of the second layer connected to the extension and the extension.
  • the backplane includes a bottom plate and a side plate disposed at two sides of the bottom plate, and the bottom plate and the side plate enclose a receiving space for receiving the first layer of the plastic frame, the light guide plate and the optical film.
  • the plastic frame is disposed along the side plate.
  • the extension of the second layer is abutted from the surface of the side plate away from the bottom plate, the connecting section of the second layer is disposed outside the side plate, and the carrying section is located at the end of the bottom plate near the side plate
  • the outside is fixed by double-sided tape.
  • the backlight module further includes a reflector, and the reflector is disposed on the bottom plate of the backboard and below the light guide.
  • the extension of the second layer, the connecting section and the carrying section enclose a U-shaped structure.
  • the present invention also provides a display, the display includes a liquid crystal panel and a backlight module, the back panel, the plastic frame, the light guide plate and the optical film, the optical film includes a first layer and is superposed on the first layer a second layer on the layer, the second layer is provided with a limiting portion, the limiting portion includes an extending portion, a connecting portion and a carrying portion disposed in parallel with the extending portion, the connecting portion connecting the carrying portion And an extension segment, the extension segment is formed by extending from one end of the second layer, the optical film is superposed on the light guide plate, the first layer is in contact with the light guide plate, and the plastic frame surrounds the light guide plate And the first layer of the optical film is disposed on the back plate, and the connecting segment is located outside the two sides of the back plate, and the opposite side edges of the plastic frame and the back plate are limited to the carrying section and the extension Between the segments, and the extension is fixed to the liquid crystal panel by a double-sided tape.
  • the backboard includes a bottom plate and side plates disposed on two sides of the bottom plate, and the plastic frame is mounted on the bottom plate and disposed along the side plate.
  • the extension of the second layer is abutted from the surface of the side plate away from the bottom plate, the connecting section of the second layer is disposed outside the side plate, and the carrying section is located at the end of the bottom plate near the side plate
  • the outside is fixed by double-sided tape.
  • the backlight module further includes a reflector, and the reflector is disposed on the bottom plate of the backboard and Located below the light guide plate.
  • the backlight module further includes a double-sided tape, and the double-sided tape is disposed on an edge of the second layer connected to the extension and the extension.
  • the bottom plate and the side plate enclose a receiving space for receiving the first layer of the plastic frame, the light guide plate and the optical film.
  • the extension of the second layer, the connecting section and the carrying section enclose a U-shaped structure.
  • the optical film of the present invention has a limiting portion, which provides a large fixing position for the double-sided tape, and the area of the double-sided tape attached to the liquid crystal panel is equal to the area attached to the optical film, so Balancing the bonding strength between the liquid crystal panel and the optical film of the backlight module, and avoiding scratching of the optical film due to unequal bonding strength during assembly or disassembly. Damage, which in turn improves the quality of the display.
  • FIG. 1 is a schematic cross-sectional view of a backlight module in a preferred embodiment of the present invention.
  • FIG. 2 is a schematic cross-sectional view of a display having the backlight module of the present invention.
  • the present invention provides a backlight module 10 .
  • the backlight module 10 includes a back plate 11 , a plastic frame 13 , a light guide plate 15 , and an optical film 17 .
  • the optical film 17 includes a first layer 171 and a second layer 172 superposed on the first layer 171.
  • the second layer 172 is provided with a limiting portion 18, and the limiting portion 18 includes an extending portion 181, a connecting portion 182, and a carrying portion 183 disposed in parallel with the extending portion 181, the connecting portion 182 connecting the carrying portion Segment 183 and extension 181.
  • the extension 181 is formed by extending one end of the second layer 172.
  • the optical film 17 is superposed on the light guide plate 15, the first a layer 171 is in contact with the light guide plate 15 , and the plastic frame 13 surrounds the first layer 171 of the light guide plate 15 and the optical film 17 and is disposed in the back plate 11 , and the connecting portion 182 is located in the
  • the two sides of the back frame 11 are opposite to the opposite side edges of the plastic frame 13 and the back plate 11 between the carrying portion 183 and the extending portion 181.
  • the backlight module 10 further includes a double-sided tape 19 disposed on an edge of the second layer 172 connected to the extension 181 and the extension 181.
  • the optical film 17 of the present invention has a limiting portion 18 which provides a large fixed position for the double-sided tape.
  • the backboard 11 includes a bottom plate 111 and side plates 112 disposed on two sides of the bottom plate 111.
  • the bottom plate 111 and the side plate 112 enclose a receiving space for receiving the first frame 171 of the plastic frame 13 , the light guide plate 15 and the optical film 17 .
  • the light guide plate 15 is a plate body.
  • the first layer 171 of the optical film 17 is a plate body and is superposed on the light incident surface of the light guide plate 15 .
  • the extending portion 181 of the second layer 172 is abutted against the surface of the side plate 112 away from the bottom plate 111, and the connecting portion 182 of the second layer 172 is disposed outside the side plate 112, the carrying portion 183 is located outside the one end of the bottom plate 111 near the side plate 112 and is fixed by the double-sided tape 192.
  • the extension 181 of the second layer, the connecting section 182 and the carrying section 183 enclose a U-shaped structure.
  • the back plate 11 is provided with two sides of the side plate 112 and the plastic frame 13 is inserted into the U-shaped structure.
  • the relative arrangement of the carrying portion 183 and the extending portion 181 further stabilizes the assembly stability between the back plate 11, the plastic frame 13, the light guide plate 15, and the optical film 17.
  • the backlight module 10 further includes a reflector 12 disposed on the bottom plate 111 of the backboard 11 and below the light guide panel 15 .
  • the present invention further provides a display including a liquid crystal panel 20 and the backlight module 10 .
  • the liquid crystal panel 20 is mounted on the optical film 17 of the backlight module 10, and is fixed to the liquid crystal panel by the double-sided tape 19 provided on the extending portion 181.
  • the area of the double-sided tape 19 attached to the liquid crystal panel 20 is equal to the area of the optical film 17 , thereby balancing the relationship between the liquid crystal panel 20 and the optical film 17 of the backlight module 10 .
  • the adhesive fixing strength, and the bearing section 183 increases the bearing capacity of the backing plate 11, and during the assembly or disassembly process, the optical film is prevented from falling and scraping due to unequal bonding strength. Damage such as injury, which improves the quality of the display.

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

Abstract

一种背光模组（10）和显示器，包括背板（11）、胶框（13）、导光板（15）及光学膜片（17），所述光学膜片（17）包括第一层（171）及叠加设于第一层（171）上的第二层（172），所述第二层（172）设有限位部（18），所述限位部（18）包括延伸段（181）、连接段（182）及与所述延伸段（181）平行相对设置的承载段（183），所述连接段（182）连接所述承载段（183）及延伸段（181），所述延伸段（181）由第二层（172）一端延伸形成，所述光学膜片（17）叠加于所述导光板（15）上，所述第一层（171）与所述导光板（15）接触，所述胶框（13）围绕所述导光板（15）及光学膜片（17）的第一层（171）并设于所述背板（11）内，所述连接段（182）位于所述背板（11）两侧外部，所述胶框（13）与背板（11）相对两侧边缘被限位于所述承载段（183）与延伸段（181）之间。

Description

背光模组及显示器
本发明要求2014年12月24日递交的发明名称为“背光模组及显示器”的申请号201410819627.X的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及液晶显示技术领域，特别涉及一种背光模组及显示器。
背景技术
目前，液晶显示装置作为电子设备的显示部件已经广泛的应用于各种电子产品中，这些电子设备的边框越来越窄，亮度要求也越来越高，同时还要满足省电的要求；而背光模组则是液晶显示装置中的一个重要部件，其灯条的入光效率势必要求越来越高。
一般情况下，一种背光模组，包括：一导光板、光学膜片、设置于所述导光板周围的胶框、灯源柔性电路板以及遮光胶带，所述光学膜片通过遮光双面胶带固定在胶框上，液晶显示屏则通过双面胶与背光单元四周固定。然而，由于液晶显示屏与双面胶的贴附面积大，光学膜片与双面胶的贴附面积小，由于在重工需要将液晶显示面板与光学膜片分开时，就会发生双面胶残留在面板上，而光学膜片发生错位或刮伤，导致背光单元报废，降低生产良率。
发明内容
本发明所要解决的技术问题在于提供一种背光模组及显示器，保证光学膜片品质，提高生产良率。
为了实现上述目的，本发明实施方式提供如下技术方案：
本发明提供一种背光模组，包括背板、胶框、导光板及光学膜片，所述光学膜片包括第一层及叠加设于第一层上的第二层，所述第二层设有限位部，所述限位部包括延伸段、连接段及与所述延伸段平行相对设置的承载段，所述连接段连接所述承载段及延伸段，所述延伸段由第二层一端延伸形成，所述光学 膜片叠加于所述导光板上，所述第一层与所述导光板接触，所述胶框围绕所述导光板及光学膜片的第一层并设于所述背板内，所述连接段位于所述背板两侧外部，所述胶框与背板相对两侧边缘被限位于所述承载段与延伸段之间。
其中，所述背光模组还包括双面胶，所述双面胶设于所述第二层与所述延伸段连接的边缘及所述延伸段上。
其中，所述背板包括底板及设于底板两侧的侧板，所述底板与所述侧板围成收容空间，用于收容所述胶框、导光板及光学膜片的第一层，所述胶框沿着所述侧板设置。
其中，所述第二层的延伸段与所述侧板远离底板的表面抵持，所述第二层的连接段位于所述侧板外侧设置，所述承载段位于所述底板靠近侧板一端的外侧并通过双面胶固定。
其中，所述背光模组还包括反光板，所述反光板设于所述背板的底板上并位于所述导光板下方。
其中，所述第二层的延伸段、连接段及所述承载段围成U形结构。
本发明还提供一种显示器，所述显示器包括液晶面板及背光模组，所述包括背板、胶框、导光板及光学膜片，所述光学膜片包括第一层及叠加设于第一层上的第二层，所述第二层设有限位部，所述限位部包括延伸段、连接段及与所述延伸段平行相对设置的承载段，所述连接段连接所述承载段及延伸段，所述延伸段由第二层一端延伸形成，所述光学膜片叠加于所述导光板上，所述第一层与所述导光板接触，所述胶框围绕所述导光板及光学膜片的第一层并设于所述背板上，所述连接段位于所述背板两侧外部，所述胶框与背板相对两侧边缘被限位于所述承载段与延伸段之间，并且所述延伸段通过双面胶与所述液晶面板固定。
其中，所述背板包括底板及设于底板两侧的侧板，所述胶框装于底板上并沿着所述侧板设置。
其中，所述第二层的延伸段与所述侧板远离底板的表面抵持，所述第二层的连接段位于所述侧板外侧设置，所述承载段位于所述底板靠近侧板一端的外侧并通过双面胶固定。
其中，所述背光模组还包括反光板，所述反光板设于所述背板的底板上并 位于所述导光板下方。
其中，所述背光模组还包括双面胶，所述双面胶设于所述第二层与所述延伸段连接的边缘及所述延伸段上。
其中，所述底板与所述侧板围成收容空间，用于收容所述胶框、导光板及光学膜片的第一层。
其中，所述第二层的延伸段、连接段及所述承载段围成U形结构。
本发明的光学膜片增加了限位部，为双面胶提供了较大的固定位置，所述双面胶贴于所述液晶面板的面积与贴于所述光学膜片的面积相等，因此平衡了所述液晶面板与所述背光模组的光学膜片之间的粘合固定强度，在组装或拆卸过程中，避免因为粘合固定强度不等而对所述光学膜片造成刮伤等损坏，进而提升了显示器的品质。
附图说明
为了更清楚地说明本发明的技术方案，下面将对实施方式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方式，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，还可以如这些附图获得其他的附图。
图1是本发明较佳实施方式中的背光模组的截面示意图。
图2是本发明的具有所述背光模组的显示器的截面示意图。
具体实施方式
下面将结合本发明实施方式中的附图，对本发明实施方式中的技术方案进行清楚、完整地描述。
请参阅图1，本发明提供一种背光模组10。所述背光模组10包括背板11、胶框13、导光板15及光学膜片17。所述光学膜片17包括第一层171及叠加设于第一层171上的第二层172。所述第二层172设有限位部18，所述限位部18包括延伸段181、连接段182及与所述延伸段181平行相对设置的承载段183，所述连接段182连接所述承载段183及延伸段181。所述延伸段181由第二层172一端延伸形成。所述光学膜片17叠加于所述导光板15上，所述第 一层171与所述导光板15接触，所述胶框13围绕所述导光板15及光学膜片17的第一层171并设于所述背板11内，所述连接段182位于所述背板11两侧外部，所述胶框13与背板11相对两侧边缘被限位于所述承载段183与延伸段181之间。
进一步的，所述背光模组10还包括双面胶19，所述双面胶19设于所述第二层172与所述延伸段181连接的边缘及所述延伸段181上。本发明的光学膜片17增加了限位部18，为双面胶提供了较大的固定位置。
本实施例中，所述背板11包括底板111及设于底板111两侧的侧板112。所述底板111与所述侧板112围成收容空间，用于收容所述所述胶框13、导光板15及光学膜片17的第一层171。所述导光板15为板体。所述光学膜片17的第一层171为板体并叠加设置于所述导光板15的入光面上。
进一步的，所述第二层172的延伸段181与所述侧板112远离底板111的表面抵持，所述第二层172的连接段182位于所述侧板112外侧设置，所述承载段183位于所述底板111靠近侧板112一端的外侧并通过双面胶192固定。本实施例中，所述第二层的延伸段181、连接段182及所述承载段183围成U形结构。所述背板11设有侧板112的两侧及胶框13插入所述U形结构内。所述承载段183与延伸段181的相对设置，更加稳固了所述背板11、胶框13、导光板15及光学膜片17之间的组装稳固性。
进一步的，所述背光模组10还包括反光板12，所述反光板12设于所述背板11的底板111上并位于所述导光板15下方。
请参阅图2，本发明还提供一种显示器，所述显示器包括液晶面板20及所述的背光模组10。所述液晶面板20装于背光模组10的光学膜片17上，通过设于所述延伸段181的双面胶19与所述液晶面板固定。所述双面胶19贴于所述液晶面板20的面积与贴于所述光学膜片17的面积相等，因此平衡了所述液晶面板20与所述背光模组10的光学膜片17之间的粘合固定强度，并且所述承载段183增加了多所述背板11的承载力，在组装或拆卸过程中，避免因为粘合固定强度不等而对所述光学膜片造成跌落、刮伤等损坏，进而提升了显示器的品质。
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普通技 术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围。

Claims (13)

  1. 一种背光模组，包括背板、胶框、导光板及光学膜片，其中，所述光学膜片包括第一层及叠加设于第一层上的第二层，所述第二层设有限位部，所述限位部包括延伸段、连接段及与所述延伸段平行相对设置的承载段，所述连接段连接所述承载段及延伸段，所述延伸段由第二层一端延伸形成，所述光学膜片叠加于所述导光板上，所述第一层与所述导光板接触，所述胶框围绕所述导光板及光学膜片的第一层并设于所述背板内，所述连接段位于所述背板两侧外部，所述胶框与背板相对两侧边缘被限位于所述承载段与延伸段之间。
  2. 如权利要求1所述的背光模组，其中，所述背光模组还包括双面胶，所述双面胶设于所述第二层与所述延伸段连接的边缘及所述延伸段上。
  3. 如权利要求2所述的背光模组，其中，所述背板包括底板及设于底板两侧的侧板，所述底板与所述侧板围成收容空间，用于收容所述胶框、导光板及光学膜片的第一层，所述胶框沿着所述侧板设置。
  4. 如权利要求3所述的背光模组，其中，所述第二层的延伸段与所述侧板远离底板的表面抵持，所述第二层的连接段位于所述侧板外侧设置，所述承载段位于所述底板靠近侧板一端的外侧并通过双面胶固定。
  5. 如权利要求3所述的背光模组，其中，所述背光模组还包括反光板，所述反光板设于所述背板的底板上并位于所述导光板下方。
  6. 如权利要求1所述的背光模组，其中，所述第二层的延伸段、连接段及所述承载段围成U形结构。
  7. 一种显示器，所述显示器包括液晶面板及背光模组，所述包括背板、胶框、导光板及光学膜片，其中，所述光学膜片包括第一层及叠加设于第一层上的第二层，所述第二层设有限位部，所述限位部包括延伸段、连接段及与所述延伸段平行相对设置的承载段，所述连接段连接所述承载段及延伸段，所述延伸段由第二层一端延伸形成，所述光学膜片叠加于所述导光板上，所述第一层与所述导光板接触，所述胶框围绕所述导光板及光学膜片的第一层并设于所述背板上，所述连接段位于所述背板两侧外部，所述胶框与背板相对两侧边缘被限位于所述承载段与延伸段之间，并且所述延伸段通过双面胶与所述液晶面板 固定。
  8. 如权利要求7所述的显示器，其中，所述背板包括底板及设于底板两侧的侧板，所述胶框装于底板上并沿着所述侧板设置。
  9. 如权利要求8所述的显示器，其中，所述第二层的延伸段与所述侧板远离底板的表面抵持，所述第二层的连接段位于所述侧板外侧设置，所述承载段位于所述底板靠近侧板一端的外侧并通过双面胶固定。
  10. 如权利要求7所述的显示器，其中，所述背光模组还包括反光板，所述反光板设于所述背板的底板上并位于所述导光板下方。
  11. 如权利要求7所述的显示器，其中，所述背光模组还包括双面胶，所述双面胶设于所述第二层与所述延伸段连接的边缘及所述延伸段上。
  12. 如权利要求8所述的显示器，其中，所述底板与所述侧板围成收容空间，用于收容所述胶框、导光板及光学膜片的第一层。
  13. 如权利要求7所述的显示器，其中，所述第二层的延伸段、连接段及所述承载段围成U形结构。
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