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WO2018113000A1 - 一种背光模组 - Google Patents

一种背光模组 Download PDF

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Publication number
WO2018113000A1
WO2018113000A1 PCT/CN2016/112334 CN2016112334W WO2018113000A1 WO 2018113000 A1 WO2018113000 A1 WO 2018113000A1 CN 2016112334 W CN2016112334 W CN 2016112334W WO 2018113000 A1 WO2018113000 A1 WO 2018113000A1
Authority
WO
WIPO (PCT)
Prior art keywords
backlight module
sheet
optical film
easy
groove
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/CN2016/112334
Other languages
English (en)
French (fr)
Inventor
曾杰
李晓玲
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.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan 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 Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US15/327,464 priority Critical patent/US10247986B2/en
Publication of WO2018113000A1 publication Critical patent/WO2018113000A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • G—PHYSICS
    • G02—OPTICS
    • 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
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back 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
    • G02F1/133317—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
    • G02F1/1335—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 present invention relates to the field of liquid crystal display devices, and in particular, to a backlight module.
  • a liquid crystal display device has been widely used as a display component of an electronic device in various electronic products, and a backlight module is an important component in a liquid crystal display device.
  • a small and medium size backlight module (unlike a large size) includes: a plastic frame 1 , a reflective sheet 2 , a light guide plate 3 , an optical film 4 , and a light source flexible circuit board 5 ( LB FPC), LED 6, display screen 8 (Cell) and light-shielding tape 9, the light source flexible circuit board 5 and the LED 6 are fixed to the light guide plate 3 and the plastic frame 1 through the light-shielding tape 9, with the display device Narrow frame design
  • the designer proposed to remove the plastic frame directly with the iron frame instead of the plastic frame the thickness of the iron frame process can reach 0.1mm, compared to the thickness of the plastic frame 0.4 ⁇ 0.5mm, can greatly reduce the width of the display device frame, in addition In order to further reduce the width of the border, it is more necessary to remove the word glue (shading glue).
  • the design of such a frameless, non-blocking adhesive results in the optical film being unable to be fixed.
  • the backlight module of the invention has the advantages of simple structure, can solve the problem that the optical film can not be fixed when the glueless frame is not used, and can realize the fixing of the optical film without the plastic frame without the word glue, and realize the ultra narrow frame of the backlight module.
  • the purpose of the design is the design.
  • the present invention provides a backlight module, wherein the backlight module includes:
  • a backplane having a through slot extending through the sides of the optical film of the backlight module and/or two A frangible piece that can pass through the through groove is terminated, and the frangible piece passes through the through groove and is in contact with the back plate.
  • the backboard comprises a bottom plate, a first side plate disposed at two ends of the bottom plate, and a second side plate disposed at two sides of the bottom plate.
  • backlight module as described above, wherein the backlight module further comprises:
  • a light guide plate disposed between the reflective sheet and the optical film.
  • the easy-folding piece is connected to the through-groove, and a part of the foldable piece that passes through the through-groove is bent and attached to the first side plate.
  • optical film comprises, in order from top to bottom, an upper prism sheet, a lower prism sheet and a diffusion sheet, the frangible sheets being attached to both sides of the upper prism sheet and/or On both ends.
  • the backlight module of the above aspect wherein the optical film is provided with a display screen.
  • the fusible piece passes through the corresponding through groove and is attached to the first side plate.
  • the backlight module of the present invention has a simple structure, can realize the fixation of the optical film without the plastic frame and the non-mouth glue, and realizes the effect of the ultra-narrow frame of the backlight module.
  • FIG. 1 is a schematic structural view of a backlight module of the prior art
  • FIG. 2 is a schematic structural view of a backlight module of the present invention
  • FIG. 3 is a schematic structural view of a bottom plate of the present invention.
  • Figure 4 is a partial enlarged view of a portion A of Figure 3;
  • Figure 5 is a front view (I) of the optical film with the easy-folding sheet of the present invention.
  • Figure 6 is a front view of the optical film of the present invention with a frangible sheet (2);
  • Figure 7 is a front view of the optical film with the easy-folding sheet of the present invention (3)
  • Figure 8 is a front elevational view (4) of an optical film with a frangible sheet of the present invention.
  • FIG. 2 to FIG. 8 are respectively a schematic structural view of a backlight module of the present invention, a schematic structural view of a bottom plate, a partial enlarged view of a portion A in FIG. 3, and a front view (1) of an optical film with a frangible sheet attached thereto.
  • the front view of the optical film which is easy to fold (2), the front view (3) of the optical film with the easy flap, and the front view (4) of the optical film with the easy flap.
  • the backlight module includes: a backplane 1 , wherein the back panel 1 has a through slot 11 therethrough, and the optical film 2 of the backlight module is connected to both sides and/or ends thereof.
  • the easy-folding piece 21 of the through groove 11 passes through the through groove 11 and is bent and attached to the back plate 1.
  • the backboard 1 includes a bottom plate 12, a first side plate 13 disposed at both ends of the bottom plate 12, and a second side plate 14 disposed at both sides of the bottom plate 12.
  • the backlight module further includes a reflective sheet 3 and a light guide plate 4, and the reflective sheet 3 is disposed on the bottom plate 12.
  • the light guide plate 4 is provided between the reflection sheet 3 and the optical film 2.
  • the optical film 2 is sequentially provided with a prism sheet 22, a lower prism sheet 23 and a diffusion sheet 24 from above and below, and the easy-fold sheets 21 are attached to both sides and/or both ends of the upper prism sheet 22.
  • the bottom plate 12 has through holes 11 at both ends thereof, and the two ends of the upper prism sheet 22 are connected with the easy-flip pieces 21, and the easy-fold pieces 21 are bent and pass through the through grooves. 11.
  • the end of the easy-folding piece 21 is again bent and attached to the bottom of the bottom plate 12, so that the uppermost optical film 2 is folded from the through groove 11 of the back plate 1 and pasted on the back surface of the back plate 1 to be fixed, that is, the upper prism
  • the sheet 22 is folded from the through groove 11 of the back sheet 1 and pasted to the back surface of the back sheet 1 to be fixed, so that the gap between the upper prism sheet 22 and the back sheet 1 will lower the prism sheet 23, the diffusion sheet 24, the light guide plate 4 and the reflection
  • the sheet 3 is fixed in the back sheet 1 to realize a backlight module in which the optical film 2 is fixed without a plastic frame and a non-mouth glue.
  • one or more spaced-apart flaps 21 are provided on the first side panel 13 and/or the second side panel 14 on the sides or both end edges of the back sheet 1 of the present invention.
  • the easy-folding sheet 21 is disposed on the entire area of both sides of the optical film 2 or in the intermediate portion of the optical film 2.
  • two optical films 2 are provided on both sides.
  • the easy-folding piece 21 is in one-to-one correspondence with the through-groove 11 of the backing plate 1, and the easy-folding piece 21 is bent through the through-groove 11 thereof to be attached thereto.
  • the two first side plates 13 are provided with through grooves 11 in the middle portion thereof, and the through grooves 11 of the two first side plates 13 are oppositely disposed, and the ends of the optical film 2 are easily folded.
  • the sheet 21 and the easy flap 21 pass through the through groove 11
  • a portion of the easy flap 21 passing through the through groove 11 is bent and attached to the first side plate 13 to realize the passage of the upper prism sheet 22 from the back plate 1.
  • the groove 11 is folded and fixed to the side of the back plate 1 to be fixed, so that the gap between the upper prism sheet 22 and the back plate 1 fixes the lower prism sheet 23, the diffusion sheet 24, the light guide plate 4 and the reflection sheet 3 to the back sheet 1. Therefore, a backlight module in which the optical film 2 is fixed without a frame and a word-free glue is provided.
  • the at least one second side plate 14 is provided with a through groove 11 .
  • a through groove 11 As shown in FIG. 8 , at least one side of the optical film 2 is connected with the easy flap 21 , and the easy flap 21 on the side of the optical film 2 is worn.
  • the through groove 11 on the second side plate 14 is attached to the second side plate 14 to further increase the stability of the connection between the upper prism sheet 22 and the back plate 1. That is, in the present invention, the through grooves 11 are formed on the side plates of the two sides or the three sides of the back plate 1, and the easy-foil sheets 21 are provided corresponding to the through grooves 11.
  • the area indicated by the broken line in FIGS. 5 to 8 is a region in which the easy flap 21 is bent.
  • the one side plate 13 is provided with a plurality of spaced-apart through grooves 11 , that is, two spaced-apart flexible flaps 21 pass through the corresponding through grooves 11 and are attached to the first side plate 13 .
  • the thickness of the easy flap 21 is smaller than the height of the through groove 11, that is, the width of the through groove 11 is slightly wider than the thickness of the upper prism sheet 22, and the upper prism sheet 22 is folded from the through groove 11 of the back sheet 1
  • the back surface or the side surface of the back sheet 1 is fixed, so that the lower prism sheet 23, the diffusion sheet 24, the light guide plate 4, and the reflection sheet 3 are fixed in the back sheet 1 by the gap between the upper prism sheet 22 and the back sheet 1.
  • the optical film 2 is further provided with a display screen.
  • a light source flexible circuit board may be disposed in a gap between the first side plate 13 and the fold portion of the easy folded piece 21. And the LED, the light source flexible circuit board is fixed on the first side plate 13.
  • the backlight module of the invention has the advantages of simple structure, no plastic frame and no lip glue, realizes the effect of the ultra-narrow bezel backlight module, and can realize the fixation of the optical film.
  • the invention passes the uppermost optical film 2 from the back plate.
  • the through groove 11 of 1 is folded and fixed by being attached to the back or side of the back plate 1 , that is, the upper prism sheet 22 is folded from the through groove 11 of the back plate 1 and pasted on the back or side of the back plate 1 to be fixed, so that the upper prism sheet
  • the gap between the 22 and the back plate 1 fixes the lower prism sheet 23, the diffusion sheet 24, the light guide plate 4 and the reflection sheet 3 in the back sheet 1, thereby realizing a backlight mold without a plastic frame and a non-mouth glue. Group, and can achieve the purpose of fixing the optical film 2.

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

Abstract

本发明公开一种背光模组，其中，所述背光模组包括：背板，背板上开有贯穿的通槽，背光模组的光学膜片的两侧和/或两端接有能穿过通槽的易折片，易折片穿过通槽并与背板相接。本发明的背光模组结构简单，能够实现无胶框和无口字胶时光学膜片的固定的背光模组，达到背光模组的超窄边框的效果。

Description

一种背光模组
相关申请的交叉引用
本申请要求享有于2016年12月20日提交的名称为“一种背光模组”的中国专利申请CN201611183230.1的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本发明涉及一种液晶显示装置技术领域，特别涉及一种背光模组。
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，而背光模组则是液晶显示装置中的一个重要部件。
一般情况下，如图1所示，一种中小尺寸背光模组(不同于大尺寸)，包括：胶框1、反射片2、导光板3、光学膜片4、灯源柔性电路板5(LB FPC)、LED 6、显示屏幕8(Cell)和遮光胶带9，所述灯源柔性电路板5和LED6通过所述遮光胶带9固定于导光板3和胶框1上，随着显示装置的窄边框设计，设计师们提出去掉胶框直接用铁框替代胶框的做法，铁框厚度工艺可达到0.1mm，比起胶框0.4～0.5mm的厚度，可大大减少显示装置边框宽度，此外为进一步减小边框宽度，更有去掉口字胶(遮光胶)的做法。但是此种无胶框无遮光胶的设计导致光学膜片无法固定。
为解决上述问题，有必要提出一种新的背光模组。
发明内容
本发明的背光模组结构简单，能够解决无胶框无口字胶时光学膜片无法固定问题，即能实现无胶框无口字胶时光学膜片的固定，实现背光模组超窄边框设计的目的。
为实现上述效果，本发明提供一种背光模组，其中，所述背光模组包括：
背板，所述背板上开有贯穿的通槽，所述背光模组的光学膜片的两侧和/或两 端接有能穿过所述通槽的易折片，所述易折片穿过所述通槽并与所述背板相接。
如上所述的背光模组，其中，所述背板包括底板、设在所述底板两端的第一侧板和设在所述底板两侧的第二侧板。
如上所述的背光模组，其中，所述背光模组还包括：
反射片，其设于所述底板上；
导光板，其设于所述反射片和所述光学膜片之间。
如上所述的背光模组，其中，所述底板的两端开有所述通槽，所述光学膜片的两端接有所述易折片，所述易折片折弯并穿过所述通槽，所述易折片的末端贴设在所述底板的底部。
如上所述的背光模组，其中，所述两个所述第一侧板上开有所述通槽，两个所述第一侧板的通槽相对设置，所述光学膜片的两端接有所述易折片，所述易折片穿过所述通槽，穿出所述通槽的所述易折片的部分折弯贴设在所述第一侧板上。
如上所述的背光模组，其中，至少一个所述第二侧板上开有所述通槽，所述光学膜片的至少一侧接有所述易折片，所述光学膜片一侧的易折片穿过所述第二侧板上的通槽，并贴设在所述第二侧板上。
如上所述的背光模组，其中，所述光学膜片从上之下依次包括上棱镜片、下棱镜片和扩散片，所述易折片接在所述上棱镜片的两侧和/或两端上。
如上所述的背光模组，其中，所述易折片的厚度小于所述通槽的高度。
如上项所述的背光模组，其中，所述光学膜片上设有显示屏。
如上所述的背光模组，其中，所述所述第一侧板上设有多个间隔设置的所述通槽，所述光学膜片的两端分别设有多个间隔设置的易折片，所述易折片穿过与其对应的所述通槽并贴设在所述第一侧板上。
与现有的背光模组相比，本发明的背光模组结构简单，能够实现无胶框和无口字胶时光学膜片的固定，实现背光模组的超窄边框的效果。
上述技术特征可以各种适合的方式组合或由等效的技术特征来替代，只要能够达到本发明的目的。
附图说明
在此描述的附图仅用于解释目的，而不意图以任何方式来限制本发明公开的 范围。另外，图中的各部件的形状和比例尺寸等仅为示意性的，用于帮助对本发明的理解，并不是具体限定本发明各部件的形状和比例尺寸。本领域的技术人员在本发明的教导下，可以根据具体情况选择各种可能的形状和比例尺寸来实施本发明。
图1为现有技术的背光模组的结构示意图；
图2为本发明的背光模组的结构示意图；
图3为本发明的底板的结构示意图；
图4为图3中A部的局部放大图；
图5为本发明的接有易折片的光学膜片的主视图(一)；
图6为本发明的接有易折片的光学膜片的主视图(二)；
图7为本发明的接有易折片的光学膜片的主视图(三)
图8为本发明的接有易折片的光学膜片的主视图(四)。
在附图中，相同的部件使用相同的附图标记。附图并未按照实际的比例。
具体实施方式
结合附图和本发明具体实施方式的描述，能够更加清楚地了解本发明的细节。但是，在此描述的本发明的具体实施方式，仅用于解释本发明的目的，而不能以任何方式理解成是对本发明的限制。在本发明的教导下，技术人员可以构想基于本发明的任意可能的变形，这些都应被视为属于本发明的范围，下面将结合附图对本发明作进一步说明。
图2至图8分别为本发明的背光模组的结构示意图、底板的结构示意图、图3中A部的局部放大图、接有易折片的光学膜片的主视图(一)、接有易折片的光学膜片的主视图(二)、接有易折片的光学膜片的主视图(三)和接有易折片的光学膜片的主视图(四)。
如图2所示，背光模组包括：背板1，其中，背板1上开有贯穿的通槽11，背光模组的光学膜片2的两侧和/或两端接有能穿过通槽11的易折片21，易折片21穿过通槽11后再进行弯折并贴设在背板1上。
具体的，在本发明中，如图3所示，背板1包括底板12、设在底板12两端的第一侧板13和设在底板12两侧的第二侧板14。
在本发明中，背光模组还包括反射片3和导光板4，反射片3设在底板12上， 导光板4设在反射片3和光学膜片2之间。
具体的，光学膜片2从上之下依次上棱镜片22、下棱镜片23和扩散片24，易折片21接在上棱镜片22的两侧和/或两端上。
在一具体的实施例中，如图3所示，底板12的两端开有通槽11，上棱镜片22的两端接有易折片21，易折片21折弯并穿过通槽11，易折片21的末端再次弯折贴设在底板12的底部，这样，最上层光学膜片2从背板1的通槽11折叠穿过贴在背板1背面实现固定，即上棱镜片22从背板1的通槽11折叠穿过贴在背板1背面实现固定，这样上棱镜片22和背板1之间的间隙将下棱镜片23、扩散片24、导光板4和反射片3固定于背板1之内，从而实现提供一种无胶框及无口字胶时光学膜片2固定的背光模组。
在另一实施例中，在本发明的背板1两侧或两端边缘上的第一侧板13和/或第二侧板14上设有一个或多个间隔设置的易折片21，如图5和图6所示，易折片21设置在光学膜片2两侧的整个区域或设置在光学膜片2的中间区域，如图7所示，光学膜片2两侧设有两个间隔设置的易折片21，在本发明中，易折片21与背板1的通槽11一一对应，易折片21通过其的通槽11后再进行弯折使其贴设在背板1上。
在一具体实施例中，两个第一侧板13在其中间区域上开有通槽11，两个第一侧板13的通槽11相对设置，光学膜片2的两端接有易折片21，易折片21穿过通槽11后，穿出通槽11的易折片21的部分折弯贴设在第一侧板13上，以实现上棱镜片22从背板1的通槽11折叠穿过贴在背板1侧面实现固定，这样上棱镜片22和背板1之间的间隙将下棱镜片23、扩散片24、导光板4和反射片3固定于背板1之内，从而实现提供一种无胶框及无口字胶时光学膜片2固定的背光模组。
进一步地，至少一个第二侧板14上开有通槽11，如图8所述，光学膜片2的至少一侧接有易折片21，光学膜片2一侧的易折片21穿过第二侧板14上的通槽11，并贴设在第二侧板14上，以进一步地增加上棱镜片22与背板1之间连接的稳定性。即在本发明中，在背板1的两侧或三侧的侧板上设计加工有通槽11，与通槽11相对应的设有易折片21。
其中，图5至图8中虚线所示的区域为易折片21弯折的区域。
当然，在光学膜片2两侧设有两个间隔设置的易折片21时，此时，两个第 一侧板13上设有多个间隔设置的通槽11，即两个间隔设置的易折片21穿过与其对应的通槽11并贴设在第一侧板13上。
在本发明中，易折片21的厚度小于通槽11的高度，即通槽11的宽度比上棱镜片22厚度略宽，上棱镜片22从背板1的通槽11折叠穿过贴在背板1的背面或侧面而实现固定，这样利用上棱镜片22和背板1之间的间隙将下棱镜片23、扩散片24、导光板4和反射片3固定于背板1之内。
进一步地，光学膜片2上还设有显示屏，在本发明中，如图3所示，第一侧板13和易折片21弯折处之间的间隙内可以设置灯源柔性电路板和LED，灯源柔性电路板固定在第一侧板13上。
本发明的背光模组结构简单，其没有胶框和没有口字胶，实现超窄边框背光模组的效果，并且可实现光学膜片的固定，本发明通过最上层光学膜片2从背板1的通槽11折叠穿过贴在背板1背面或侧面实现固定，即上棱镜片22从背板1的通槽11折叠穿过贴在背板1背面或侧面实现固定，这样上棱镜片22和背板1之间的间隙将下棱镜片23、扩散片24、导光板4和反射片3固定于背板1之内，从而实现提供一种无胶框及无口字胶的背光模组，且能达到固定光学膜片2的目的。
上述技术方案只是本发明的一种实施方式，对于本领域内的技术人员而言，在本发明公开了应用方法和原理的基础上，很容易做出各种类型的改进或变形，而不仅限于本发明上述具体实施方式所描述的方法。虽然已经参考优选实施例对本发明进行了描述，但在不脱离本发明的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本发明并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (16)

  1. 一种背光模组，其中，所述背光模组包括：
    背板，所述背板上开有贯穿的通槽，所述背光模组的光学膜片的两侧和/或两端接有能穿过所述通槽的易折片，所述易折片穿过所述通槽并与所述背板相接。
  2. 如权利要求1所述的背光模组，其中，所述背板包括底板、设在所述底板两端的第一侧板和设在所述底板两侧的第二侧板。
  3. 如权利要求2所述的背光模组，其中，所述背光模组还包括：
    反射片，其设于所述底板上；
    导光板，其设于所述反射片和所述光学膜片之间。
  4. 如权利要求3所述的背光模组，其中，所述底板的两端开有所述通槽，所述光学膜片的两端接有所述易折片，所述易折片折弯并穿过所述通槽，所述易折片的末端贴设在所述底板的底部。
  5. 如权利要求3所述的背光模组，其中，所述两个所述第一侧板上开有所述通槽，两个所述第一侧板的通槽相对设置，所述光学膜片的两端接有所述易折片，所述易折片穿过所述通槽，穿出所述通槽的所述易折片的部分折弯贴设在所述第一侧板上。
  6. 如权利要求5所述的背光模组，其中，至少一个所述第二侧板上开有所述通槽，所述光学膜片的至少一侧接有所述易折片，所述光学膜片一侧的易折片穿过所述第二侧板上的通槽，并贴设在所述第二侧板上。
  7. 如权利要求1所述的背光模组，其中，所述光学膜片从上之下依次包括上棱镜片、下棱镜片和扩散片，所述易折片接在所述上棱镜片的两侧和/或两端上。
  8. 如权利要求1所述的背光模组，其中，所述易折片的厚度小于所述通槽的高度。
  9. 如权利要求1所述的背光模组，其中，所述光学膜片上设有显示屏。
  10. 如权利要求2所述的背光模组，其中，所述所述第一侧板上设有多个间隔设置的所述通槽，所述光学膜片的两端分别设有多个间隔设置的易折片，所述易折片穿过与其对应的所述通槽并贴设在所述第一侧板上。
  11. 如权利要求4所述的背光模组，其中，所述两个所述第一侧板上开有所述通槽，两个所述第一侧板的通槽相对设置，所述光学膜片的两端接有所述易折 片，所述易折片穿过所述通槽，穿出所述通槽的所述易折片的部分折弯贴设在所述第一侧板上。
  12. 如权利要求11所述的背光模组，其中，所述光学膜片从上之下依次包括上棱镜片、下棱镜片和扩散片，所述易折片接在所述上棱镜片的两侧和/或两端上。
  13. 如权利要求11所述的背光模组，其中，所述易折片的厚度小于所述通槽的高度。
  14. 如权利要求13所述的背光模组，其中，所述光学膜片上设有显示屏。
  15. 如权利要求3所述的背光模组，其中，所述所述第一侧板上设有多个间隔设置的所述通槽，所述光学膜片的两端分别设有多个间隔设置的易折片，所述易折片穿过与其对应的所述通槽并贴设在所述第一侧板上。
  16. 如权利要求11所述的背光模组，其中，所述所述第一侧板上设有多个间隔设置的所述通槽，所述光学膜片的两端分别设有多个间隔设置的易折片，所述易折片穿过与其对应的所述通槽并贴设在所述第一侧板上。
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