WO2016161664A1 - 显示装置及其背光模组 - Google Patents

显示装置及其背光模组 Download PDF

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Publication number
WO2016161664A1
WO2016161664A1 PCT/CN2015/076442 CN2015076442W WO2016161664A1 WO 2016161664 A1 WO2016161664 A1 WO 2016161664A1 CN 2015076442 W CN2015076442 W CN 2015076442W WO 2016161664 A1 WO2016161664 A1 WO 2016161664A1
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WIPO (PCT)
Prior art keywords
light
optical film
backlight module
guide plate
light guide
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Application number
PCT/CN2015/076442
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English (en)
French (fr)
Inventor
周革革
Original Assignee
武汉华星光电技术有限公司
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Filing date
Publication date
Application filed by 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US14/443,614 priority Critical patent/US9891373B2/en
Publication of WO2016161664A1 publication Critical patent/WO2016161664A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—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
    • G02F1/1335—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
    • G02B6/009—Positioning aspects of the light source 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • 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
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0051—Diffusing sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • 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
    • G02F1/133602—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

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a display device and a backlight module thereof.
  • LCD Liquid Crystal Display
  • LCD displays have become the mainstream of display technology due to their advantages such as ultra-thin, light weight, no radiation, and stable performance.
  • Most of the liquid crystal display devices on the market are backlight type liquid crystal display devices, which include a liquid crystal panel and a backlight module, wherein the display panel is mounted and protected by the frame of the backlight module.
  • the backlight module includes a light guide plate, a plastic frame disposed around the light guide plate, a light source flexible circuit board, and a light shielding tape.
  • the light source flexible circuit board is fixed on the light guide plate and the plastic frame by the light shielding tape, and the optical film is also shielded by light.
  • the double-sided tape is fixed on the plastic frame, and the liquid crystal display is fixed around the backlight unit through the double-sided tape.
  • the common backlight module structure can only be displayed in a single direction backlight, which results in the display device can only achieve single-sided display.
  • the present invention provides a display device having a simple structure, low cost, and convenient assembly, and a backlight module thereof.
  • a backlight module comprising:
  • a light guide plate comprising a horizontal light guide plate body and a first bent portion adjacent to the non-light incident side
  • An optical film set comprising a horizontal optical film set body and a second bent portion adjacent to the non-light-in side;
  • the optical film assembly body is in close contact with the upper surface of the light guide plate body, and the second bent portion is in close contact with the first bent portion.
  • the backlight module further includes a reflective sheet that is in close contact with the bottom surface of the light guide plate, the reflective sheet includes a horizontal reflective sheet main body and a third bent portion adjacent to the non-light incident side, and the third bending portion The portion is in close contact with the first bent portion.
  • the backlight module further includes a backboard, and the backboard includes a horizontal backplane body, and the backplane body is in close contact with the lower surface of the reflective sheet body.
  • the bending angle of the first bending portion with respect to the light guide plate main body and the bending angle of the second bending portion with respect to the optical film group main body are the same.
  • the bending angle of the first bent portion with respect to the light guide plate main body is not more than 90°.
  • the optical film set further includes a wrapping portion near an end of the non-light-in side, the wrapping portion extending from the second bending portion and wrapping an end of the first bending portion.
  • the optical film set includes an upper brightness enhancement sheet, a lower brightness enhancement sheet and a diffusion sheet which are sequentially stacked on the surface of the light guide plate from top to bottom, and the wrapping portion is a part of the upper brightness enhancement sheet.
  • Another object of the present invention is to provide a display device including a first display panel, a second display panel, and the above backlight module, wherein the first display panel and the second display panel are respectively associated with the optical film
  • the sheet body of the sheet and the outer surface of the second bent portion are disposed opposite to each other.
  • the two sides of the first display panel and the second display panel in the width direction are respectively pasted on the optical film set by a double-sided light-shielding tape.
  • the double-sided light-shielding tape includes a first light-shielding tape, and the first light-shielding tape is disposed at a bend of the optical film set main body and the second bent portion, and is pasted on the first display a lower surface of the panel and the second display panel.
  • the invention eliminates the rubber frame and the back plate portion on at least one non-light-in side of the backlight module, and bends the corresponding end of the light guide plate and the optical film group to form a side bent portion, and the light on the light-incident side is not only passed through the backlight.
  • the upper surface of the module is emitted, and can also be emitted through the side curved portion to realize multi-face backlight effect.
  • the display panel is formed on the upper surface and the side surface of the backlight module to form a display device, and the display device can simultaneously realize The surface and side display realize multi-face display, simple structure, low cost and convenient assembly, and expand the application field of the display device.
  • FIG. 1 is a cross-sectional structural view showing a light incident side of a display device according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional structural view showing a non-light-in side of a display device according to an embodiment of the present invention.
  • a backlight module includes a light source assembly 1, a plastic frame 2, a light guide plate 10, and an optical film group 20.
  • the optical film group 20 and the light guide plate 10 are stacked from top to bottom, and the light source assembly 1 is assembled.
  • a plurality of LEDs are formed on a circuit board, the light source assembly 1 is disposed on a light-incident side of the light guide plate 10, and the plastic frame 2 is a frame structure, and the light source assembly 1, the light guide plate 10, and the optical film are disposed.
  • the slice group 20 is surrounded by it.
  • the light guide plate 10 includes a horizontal light guide plate main body 10a and a first bent portion 10b close to the non-light incident side;
  • the optical film set 20 includes a horizontal optical film set main body 20a and a second bent portion close to the non-light incident side. 20b;
  • the optical film group main body 20a is in close contact with the upper surface of the light guide plate main body 10a, and the second bent portion 20b is in close contact with the first bent portion 10b.
  • a reflective sheet 30 that is in close contact with the light guide plate 10 is further disposed on the lower surface of the light guide plate 10.
  • the reflective sheet 30 includes a horizontal reflective sheet main body 30a and a third bent portion 30b adjacent to the non-light incident side, and the third bent portion 30b Adhering to the first bent portion 10b, the light guide plate 10 and the reflection sheet 30 are completely in close contact with each other.
  • the backlight module may further include a back plate 40 including a horizontal back plate main body 40a and a vertical side wall 40b, and the back plate main body 40a is in close contact with the lower surface of the reflective sheet main body 30a for the light source thereon
  • the assembly 1, the plastic frame 2, the light guide plate 10 and the optical film group 20 serve as a support.
  • the side wall 40b extends from the backing plate body 40a and can be used to protect the structural members within the backing plate 40.
  • the bending angle of the first bent portion 10b with respect to the light guide plate main body 10a is the same as the bending angle of the second bent portion 20b with respect to the optical film set main body 20a, so as to ensure various portions of the light guide plate 10 and the optical film. Good contact of group 20.
  • the bending angle of the first bent portion 10b with respect to the light guide plate main body 10a is not more than 90°.
  • the first bent portion 10b and the second bent portion 20b of the present embodiment are perpendicular to the light guide plate main body 10a and the optical film set main body 20a, respectively.
  • the end of the optical film group 20 adjacent to the non-light-incident side is further provided with a wrapping portion 20c extending from the second bending portion 20b and wrapping the end portion of the first bending portion 10b, so that the structure of the backlight module is more compact.
  • the optical film group 20 includes an upper brightness enhancement sheet 21, a lower brightness enhancement sheet 22, and a diffusion sheet 23 which are sequentially stacked on the upper surface of the light guide plate 10 from top to bottom, and the wrapping portion 20c is a part of the upper brightness enhancement sheet 21.
  • the wrapping portion 20c includes a first portion (not labeled) that abuts the first bent portion 10b and a second portion (not labeled) that is bent from the first portion, the second portion is in close contact with the third portion The folded portion 30b or a corresponding portion of the first bent portion 10b.
  • the display device of the embodiment of the invention includes a first display panel 50, a second display panel 51 and the backlight module, and the first display panel 50 and the second display panel 51 are respectively disposed with the optical film assembly main body 20a and the second bend
  • the outer surfaces of the folded portions 20b are opposed to each other.
  • both sides of the first display panel 50 and the second display panel 51 in the width direction are attached to the optical film set 20 by double-sided light-shielding tape.
  • the double-sided light-shielding tape includes a first light-shielding tape 100, a second light-shielding tape 101, and a third light-shielding tape 102.
  • the first light-shielding tape 100 is disposed at a bend of the optical film set main body 20a and the second bent portion 20b, and is pasted.
  • the second light-shielding tape 101 is disposed on the lower surface of the first display panel 50 on the side closer to the light-incident side, and is attached to the upper surface of the plastic frame 2 and the back plate.
  • the upper surface of the side wall 40b of the 40 and the upper surface of the upper light-increasing sheet 21; the third light-shielding tape 102 is disposed on the other side of the second display panel 51 in the width direction away from the first light-shielding tape 100.
  • the non-light-in side includes but is not limited to one, and therefore, the display panel disposed on the display device includes, but is not limited to, two.
  • the light guide plate and the optical film group are bent at one end of the non-light-incident side to form a side bent portion, and the light on the light-incident side is emitted through the upper side surface of the backlight module, and can also be emitted through the side bent portion.
  • the multi-face backlight effect is realized; at the same time, the display panel is formed on the upper surface and the side surface of the backlight module to form a display device, and the display device can realize the display function of the upper surface and the at least one side at the same time, realize multi-face display, simple structure and cost
  • the utility model has the advantages of low assembly and convenient assembly, and the application field of the display device is expanded.
  • a touch screen can be disposed on the upper surface of the side display portion, and a virtual touch button is correspondingly disposed on the touch screen, thereby enhancing the stereoscopic feeling of the screen and providing the setting space of the virtual button.

Abstract

一种背光模组及具有该背光模组的显示装置，包括导光板（10），包括水平的导光板主体（10a）和靠近非入光侧的第一弯折部（10b）；光学膜片组（20）包括水平的光学膜片组主体（20a）和靠近非入光侧的第二弯折部（20b）；光学膜片组主体（20a）紧贴导光板主体（10a）的上表面，且第二弯折部（20b）紧贴第一弯折部（10b）。通过在背光模组的至少一个非入光侧取消了胶框（2）和背板（40）部分，并将导光板（10）和光学膜片组（20）相应一端折弯，使背光模组可以实现多面背光效果；同时，在背光模组的上表面和侧面同时设置显示面板形成显示装置，该显示装置可以同时实现上表面和侧面显示，结构简单、成本低，装配方便，扩大了显示装置的应用领域。

Description

显示装置及其背光模组 技术领域
本发明涉及显示技术领域，尤其涉及一种显示装置及其背光模组。
背景技术
随着LCD(Liquid Crystal Display)面板的迅速发展，LCD显示器以其超薄、重量轻、无辐射、性能稳定等诸多优势逐渐成为显示技术的主流。现有市场上的液晶显示装置大部分为背光型液晶显示装置，其包括液晶面板及背光模组(backlight module)，其中显示面板通过背光模组的边框安装和保护。
通常，背光模组包括导光板、设置于导光板周围的胶框、灯源柔性电路板以及遮光胶带，灯源柔性电路板通过遮光胶带固定于导光板和胶框上，光学膜片也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。但是这种常见的背光模组结构仅能朝单一方向背光显示，导致显示装置也只能实现单面显示，在某些特定场合，为提高显示画面的连续性，如需要同时实现相邻面显示的时候，需要使用多个背光模组或显示装置来实现，导致产品成本增加，同时内部结构件增多，装配难度提高，大大降低了生产效率。
发明内容
鉴于现有技术存在的不足，本发明提供了一种结构简单、成本低、装配方便的显示装置及其背光模组。
为了实现上述的目的，本发明采用了如下的技术方案：
一种背光模组，包括：
导光板，包括水平的导光板主体和靠近非入光侧的第一弯折部；
光学膜片组，包括水平的光学膜片组主体和靠近非入光侧的第二弯折部；
所述光学膜片组主体紧贴所述导光板主体的上表面，且所述第二弯折部紧贴所述第一弯折部。
其中，所述的背光模组还包括紧贴所述导光板底面的反射片，所述反射片包括水平的反射片主体和靠近非入光侧的第三弯折部，所述第三弯折部紧贴所述第一弯折部。
其中，所述的背光模组还包括背板，所述背板包括水平的背板主体，所述背板主体紧贴于所述反射片主体的下表面。
其中，所述第一弯折部相对于所述导光板主体的折弯角度与所述第二弯折部相对于所述光学膜片组主体的折弯角度相同。
其中，所述第一弯折部相对于所述导光板主体的折弯角度不大于90°。
其中，所述光学膜片组还包括靠近非入光侧一端的包裹部，所述包裹部自所述第二弯折部延伸并包裹所述第一弯折部的端部。
其中，所述光学膜片组包括由上至下依次堆叠在所述导光板上表面的上增光片、下增光片和扩散片，所述包裹部为所述上增光片的一部分。
本发明的另一目的还在于提供一种显示装置，包括第一显示面板、第二显示面板和上述的背光模组，所述第一显示面板和所述第二显示面板分别与所述光学膜片组主体和所述第二弯折部的外表面相对设置。
其中，所述第一显示面板和所述第二显示面板宽度方向的两侧均通过双面遮光胶带粘贴于所述光学膜片组上。
其中，所述双面遮光胶带包括第一遮光胶带，所述第一遮光胶带设于所述光学膜片组主体和所述第二弯折部的折弯处，同时粘贴在所述第一显示面板和所述第二显示面板的下表面。
本发明在背光模组的至少一个非入光侧取消了胶框和背板部分，并将导光板和光学膜片组相应一端折弯形成侧面的折弯部，入光侧的光线除了经过背光模组的上表面射出外，还可以经过侧面的折弯部射出，实现了多面背光效果；同时，在背光模组的上表面和侧面同时设置显示面板形成显示装置，该显示装置可以同时实现上表面和侧面显示，实现了多面显示，结构简单、成本低，装配方便，扩大了显示装置的应用领域。
附图说明
图1为本发明实施例的显示装置入光侧的剖视结构示意图。
图2为本发明实施例的显示装置非入光侧的剖视结构示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
参阅图1，本发明实施例的背光模组包括光源组件1、胶框2、导光板10和光学膜片组20，光学膜片组20和导光板10从上自下依次堆叠，光源组件1具体是多颗LED打件在电路基板上形成的灯条，光源组件1设于导光板10的入光侧一侧，胶框2为框体结构，将光源组件1、导光板10和光学膜片组20包围于其中。
结合图2所示，在至少一个非入光侧，胶框2对应的侧壁被取消，形成敞口的结构。导光板10包括水平的导光板主体10a和靠近非入光侧的第一弯折部10b；光学膜片组20包括水平的光学膜片组主体20a和靠近非入光侧的第二弯折部20b；光学膜片组主体20a紧贴导光板主体10a的上表面，且第二弯折部20b紧贴第一弯折部10b。
在导光板10的下表面还设有紧贴导光板10的反射片30，反射片30包括水平的反射片主体30a和靠近非入光侧的第三弯折部30b，第三弯折部30b紧贴第一弯折部10b，使得导光板10与反射片30完全紧贴在一起。
背光模组还可以包括背板40，背板40包括水平的背板主体40a和竖直的侧壁40b，背板主体40a紧贴于反射片主体30a的下表面，用于对其上的光源组件1、胶框2、导光板10和光学膜片组20起支撑作用。侧壁40b自背板主体40a延伸，可用于保护背板40内的结构件。
第一弯折部10b相对于导光板主体10a的折弯角度与第二弯折部20b相对于光学膜片组主体20a的折弯角度相同，用以保证导光板10的各个部位与光学膜片组20的良好接触。
具体地，第一弯折部10b相对于导光板主体10a的折弯角度不大于90°。本实施例的第一弯折部10b和第二弯折部20b分别垂直于导光板主体10a和光学膜片组主体20a。
光学膜片组20靠近非入光侧的一端还设有包裹部20c，包裹部20c自第二弯折部20b延伸并包裹第一弯折部10b的端部，使得背光模组的结构更加紧凑。 具体地，光学膜片组20包括由上至下依次堆叠在导光板10上表面的上增光片21、下增光片22和扩散片23，包裹部20c为上增光片21的一部分。具体地，包裹部20c包括紧贴第一弯折部10b的第一部分(图未标)和自该第一部分折弯形成的第二部分(图未标)，该第二部分紧贴第三弯折部30b或第一弯折部10b的相应部分。
本发明实施例的显示装置包括第一显示面板50、第二显示面板51和该背光模组，第一显示面板50和第二显示面板51分别设置为与光学膜片组主体20a和第二弯折部20b的外表面相对。具体地，第一显示面板50和第二显示面板51宽度方向的两侧均通过双面遮光胶带粘贴于光学膜片组20上。双面遮光胶带包括第一遮光胶带100、第二遮光胶带101和第三遮光胶带102，第一遮光胶带100设于光学膜片组主体20a和第二弯折部20b的折弯处，同时粘贴在第一显示面板50和第二显示面板51的下表面；第二遮光胶带101设于第一显示面板50靠近入光侧的一侧的下表面，同时粘贴在胶框2上表面、背板40的侧壁40b上表面和上增光片21的上表面；第三遮光胶带102设于第二显示面板51宽度方向远离第一遮光胶带100的另一侧。
可以理解的是，非入光侧包括但不限于一个，因此，显示装置上设置的显示面板包括且不限于两个。导光板和光学膜片组对应该非入光侧的一端折弯形成侧面的折弯部，入光侧的光线除了经过背光模组的上表面射出外，还可以经过侧面的折弯部射出，实现了多面背光效果；同时，在背光模组的上表面和侧面同时设置显示面板形成显示装置，该显示装置可以同时实现上表面和至少一个侧面的显示功能，实现了多面显示，结构简单、成本低，装配方便，扩大了显示装置的应用领域，例如，可在侧面显示部分的上表面设置触摸屏，在触摸屏上相应设置虚拟的触摸按键，可以增强画面显示立体感的同时提供虚拟按键的设置空间。
以上所述仅是本申请的具体实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。

Claims (20)

  1. 一种背光模组，其中，包括：
    导光板，包括水平的导光板主体和靠近非入光侧的第一弯折部；
    光学膜片组，包括水平的光学膜片组主体和靠近非入光侧的第二弯折部；
    所述光学膜片组主体紧贴所述导光板主体的上表面，且所述第二弯折部紧贴所述第一弯折部。
  2. 根据权利要求1所述的背光模组，其中，还包括紧贴所述导光板底面的反射片，所述反射片包括水平的反射片主体和靠近非入光侧的第三弯折部，所述第三弯折部紧贴所述第一弯折部。
  3. 根据权利要求2所述的背光模组，其中，还包括背板，所述背板包括水平的背板主体，所述背板主体紧贴于所述反射片主体的下表面。
  4. 根据权利要求1所述的背光模组，其中，所述第一弯折部相对于所述导光板主体的折弯角度与所述第二弯折部相对于所述光学膜片组主体的折弯角度相同。
  5. 根据权利要求4所述的背光模组，其中，所述第一弯折部相对于所述导光板主体的折弯角度不大于90°。
  6. 根据权利要求1所述的背光模组，其中，所述光学膜片组还包括靠近非入光侧一端的包裹部，所述包裹部自所述第二弯折部延伸并包裹所述第一弯折部的端部。
  7. 根据权利要求6所述的背光模组，其中，所述光学膜片组包括由上至下依次堆叠在所述导光板上表面的上增光片、下增光片和扩散片，所述包裹部为所述上增光片的一部分。
  8. 根据权利要求2所述的背光模组，其中，所述光学膜片组还包括靠近非入光侧一端的包裹部，所述包裹部自所述第二弯折部延伸并包裹所述第一弯折部的端部。
  9. 根据权利要求8所述的背光模组，其中，所述光学膜片组包括由上至下依次堆叠在所述导光板上表面的上增光片、下增光片和扩散片，所述包裹部为所述上增光片的一部分。
  10. 根据权利要求3所述的背光模组，其中，所述光学膜片组还包括靠近非入光侧一端的包裹部，所述包裹部自所述第二弯折部延伸并包裹所述第一弯折部的端部。
  11. 根据权利要求10所述的背光模组，其中，所述光学膜片组包括由上至下依次堆叠在所述导光板上表面的上增光片、下增光片和扩散片，所述包裹部为所述上增光片的一部分。
  12. 根据权利要求4所述的背光模组，其中，所述光学膜片组还包括靠近非入光侧一端的包裹部，所述包裹部自所述第二弯折部延伸并包裹所述第一弯折部的端部。
  13. 根据权利要求12所述的背光模组，其中，所述光学膜片组包括由上至下依次堆叠在所述导光板上表面的上增光片、下增光片和扩散片，所述包裹部为所述上增光片的一部分。
  14. 一种显示装置，其中，包括第一显示面板、第二显示面板和权利要求1所述的背光模组，所述第一显示面板和所述第二显示面板分别与所述光学膜片组主体和所述第二弯折部的外表面相对设置。
  15. 根据权利要求14所述的显示装置，其中，所述第一弯折部相对于所述导光板主体的折弯角度与所述第二弯折部相对于所述光学膜片组主体的折弯角度相同。
  16. 根据权利要求14所述的显示装置，其中，所述光学膜片组还包括靠近非入光侧一端的包裹部，所述包裹部自所述第二弯折部延伸并包裹所述第一弯折部的端部。
  17. 根据权利要求14所述的显示装置，其中，所述第一显示面板和所述第二显示面板宽度方向的两侧均通过双面遮光胶带粘贴于所述光学膜片组上。
  18. 根据权利要求17所述的显示装置，其中，所述双面遮光胶带包括第一遮光胶带，所述第一遮光胶带设于所述光学膜片组主体和所述第二弯折部的折弯处，同时粘贴在所述第一显示面板和所述第二显示面板的下表面。
  19. 根据权利要求16所述的显示装置，其中，所述第一显示面板和所述第二显示面板宽度方向的两侧均通过双面遮光胶带粘贴于所述光学膜片组上。
  20. 根据权利要求19所述的显示装置，其中，所述双面遮光胶带包括第一 遮光胶带，所述第一遮光胶带设于所述光学膜片组主体和所述第二弯折部的折弯处，同时粘贴在所述第一显示面板和所述第二显示面板的下表面。
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