WO2018166001A1 - 背光模块及具有该背光模块的液晶显示器 - Google Patents

背光模块及具有该背光模块的液晶显示器 Download PDF

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Publication number
WO2018166001A1
WO2018166001A1 PCT/CN2017/078957 CN2017078957W WO2018166001A1 WO 2018166001 A1 WO2018166001 A1 WO 2018166001A1 CN 2017078957 W CN2017078957 W CN 2017078957W WO 2018166001 A1 WO2018166001 A1 WO 2018166001A1
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WO
WIPO (PCT)
Prior art keywords
plastic frame
bevel
disposed
liquid crystal
backlight module
Prior art date
Application number
PCT/CN2017/078957
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English (en)
French (fr)
Inventor
张巍
Original Assignee
武汉华星光电技术有限公司
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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 US15/525,579 priority Critical patent/US10520665B2/en
Publication of WO2018166001A1 publication Critical patent/WO2018166001A1/zh

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Classifications

    • 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
    • G02F1/133528—Polarisers
    • 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
    • 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
    • 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 liquid crystal display having the same.
  • liquid crystal display LCD
  • advantages such as no radiation and low electromagnetic interference have become the mainstream of the market.
  • the width of the plastic frame is becoming narrower and narrower, which will bring great difficulties to the processing and assembly of the adhesive tape attached to the plastic frame, especially when the plastic frame is not used. It is particularly difficult to process and assemble the lip paste even beyond the design of the liquid crystal panel.
  • the width of the plastic frame is 0.6 mm
  • the width of the squeegee attached thereto is only about 0.3 mm, so that the processing of the width of the stencil is very difficult, and the attachment on the plastic frame is also very difficult.
  • an object of the present invention is to provide a backlight module capable of increasing a space for attaching a word-of-mouth adhesive and a liquid crystal display having the same.
  • a backlight module includes: a back plate; a light guide plate disposed on the back plate; an optical film disposed on the light guide plate; a plastic frame, and the back The plate is fixedly coupled to fix the light guide plate and the optical film; the bevel body is disposed on the upper surface of the plastic frame, and the inclined surface of the bevel body smoothly engages with the upper surface of the plastic frame.
  • the shape of the bevel body is a straight triangular prism whose bottom surface is a right triangle, and the right-angled surface of the bevel body is disposed on the upper surface of the plastic frame, and another right-angle surface of the bevel body The outer side surface of the plastic frame is flush, and the inclined surface of the bevel body is a flat surface.
  • the shape of the bevel body is a straight triangular prism whose bottom surface is a right-angled triangle, and two right-angled sides of the right-angled triangle are straight sides, and a hypotenuse of the right-angled triangle is a curved edge.
  • the straight surface of the bevel body is disposed on the upper surface of the plastic frame, and the other right angle surface of the bevel body is flush with the outer side surface of the plastic frame, and the inclined surface of the bevel body is a curved surface.
  • the bevel body is integrally formed with the plastic frame.
  • the inner side of the plastic frame has a groove, and an inner side of the plastic frame is attached to a side of the light guide plate, and a side end of the optical film is received in the groove.
  • a liquid crystal display includes a backlight module and a liquid crystal panel disposed on the backlight module.
  • the backlight module includes: a back panel; and a light guide plate disposed on the back panel An optical film disposed on the light guide plate; a plastic frame fixedly coupled to the back plate to fix the light guide plate and the optical film; a bevel body disposed on an upper surface of the plastic frame The first inclined surface of the bevel body is smoothly engaged with the upper surface of the plastic frame;
  • the liquid crystal panel comprises: an upper display substrate; the lower display substrate is disposed opposite to the upper display substrate; the upper polarizer is set On the upper surface of the upper display substrate; a lower polarizer disposed on a lower surface of the lower display substrate, wherein the lower polarizer is disposed on an upper surface of the plastic frame, the lower polarizer A joint of the lower surface and the side surface is formed with a second slope, and the second slope cooperates with the first slope.
  • the shape of the bevel body is a straight triangular prism whose bottom surface is a right triangle, and the right-angled surface of the bevel body is disposed on the upper surface of the plastic frame, and another right-angle surface of the bevel body
  • the outer side surface of the plastic frame is flush, and the first inclined surface and the second inclined surface are planes that cooperate with each other.
  • the shape of the bevel body is a straight triangular prism whose bottom surface is a right-angled triangle, and two right-angled sides of the right-angled triangle are straight sides, and a hypotenuse of the right-angled triangle is a curved edge.
  • the straight surface of the bevel body is disposed on the upper surface of the plastic frame, and another right angle surface of the bevel body is flush with the outer side surface of the plastic frame, and the first inclined surface and the second inclined surface are mutually The mating surface.
  • an adhesive is disposed between the first inclined surface and the second inclined surface and between the lower surface of the lower polarizer and the upper surface of the plastic frame.
  • the invention has the beneficial effects that the backlight module and the liquid crystal display of the invention expand the attachment space of the lip glue, thereby bringing great convenience to the processing and assembly of the mouth glue, thereby saving time and cost.
  • FIG. 1 is a perspective view of a backlight module in accordance with an embodiment of the present invention.
  • FIG. 2 is a side cross-sectional view of a backlight module in accordance with an embodiment of the present invention
  • FIG. 3 is a schematic structural view of a liquid crystal panel according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a liquid crystal display according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural view of a liquid crystal display according to another embodiment of the present invention.
  • FIG. 1 is a perspective view of a backlight module in accordance with an embodiment of the present invention.
  • 2 is a side cross-sectional view of a backlight module in accordance with an embodiment of the present invention.
  • a backlight module 100 includes a backing plate 110, a light guide plate 120, an optical film 130, a bezel 140, and a bevel body 150. It should be understood that the liquid crystal panel 200 according to an embodiment of the present invention may further include other necessary components such as a light source, a reflective element, and the like.
  • the light guide plate 120 is carried on the back plate 110, and the optical film 130 is disposed on the light guide plate 120.
  • the optical film 130 is disposed on the light guide plate 120.
  • three optical films 130 are shown, but the present invention does not limit the number of optical films 130, and may be provided according to actual needs.
  • the plastic frame 140 is formed by connecting the four side plates end to end to form an accommodating space.
  • the plastic frame 140 is disposed on the back plate 110 such that the light guide plate 120 and the optical film 130 are received in the accommodating space.
  • the plastic frame 140 is fixedly coupled to the back plate 110 to fix the light guide plate 120 and the optical film 130 in the accommodating space.
  • the inner side surface of the plastic frame 140 has a groove 141.
  • the inner side surface of the plastic frame 140 is disposed opposite to the side surface of the light guide plate 120 or the inner side surface of the plastic frame 140 and the side surface of the light guide plate 120 are attached to each other.
  • the side end of the optical film 130 is received in the recess 141, so that the light guide plate 120 and the optical film 130 can be relatively easily and firmly fixed in the accommodating space.
  • the fixing of the light guide plate 120 and the optical film 130 can also be achieved by other suitable methods.
  • two bevel bodies 150 are shown, which are respectively disposed on the upper surfaces of the opposite side plates of the plastic frame 140, but the invention is not limited thereto.
  • four bevel bodies 150 may be provided, and a bevel body 150 is disposed on each of the upper surfaces of the side plates of the bezel 140.
  • the specific function of the ramp body 150 will be described below, and the specific structure of the ramp body 150 will be described in detail below.
  • the shape of the bevel body 150 is a straight triangular prism whose bottom face is a right triangle.
  • the right-angled surface of the bevel body 150 is disposed on the upper surface of the plastic frame 140, and the other right-angled surface of the bevel body 150 is flush with the outer surface of the plastic frame 140 (or in the same plane), and the inclined surface body 150
  • the first slope 151 is a flat surface, and the first slope 151 of the slope body 150 smoothly engages with the upper surface of the frame 140.
  • the bevel body 150 can be machined into other suitable shapes as long as it has a bevel that expands the area of the adhesive tape and smoothly engages the upper surface of the bezel 140.
  • the new plastic frame mold can be directly designed to protrude the intersection of the outer surface of the plastic frame 140 and the upper surface of the plastic frame 140 to form the inclined body 150, in other words.
  • the bevel body 150 is integrally formed with the plastic frame 140, so that the bevel body 150 and the plastic frame 140 can be formed at the same time, which is more time-saving and labor-saving.
  • FIG 3 is a schematic structural view of a liquid crystal panel according to an embodiment of the present invention.
  • a liquid crystal panel 200 includes: an upper display substrate (or a color filter substrate) 210, a lower display substrate (or array substrate) 220, a liquid crystal layer 230, an upper polarizer 240, and Lower polarizer 250. It should be understood that the liquid crystal panel 200 according to an embodiment of the present invention may further include other necessary components such as a sealant, a driving element, and the like that seal the liquid crystal layer 230 between the upper display substrate 210 and the lower display substrate 220.
  • the upper display substrate 210 and the lower display substrate 220 are provided to the cartridge.
  • the liquid crystal layer 230 is interposed between the upper display substrate 210 and the lower display substrate 220, and the liquid crystal layer 230 contains a plurality of liquid crystal molecules.
  • the upper polarizer 240 is attached on the upper surface of the upper display substrate 210, that is, the upper polarizer 240 is attached on the surface of the upper display substrate 210 of the upper display substrate 210.
  • the lower polarizer 250 is attached on the lower surface of the lower display substrate 220, that is, the lower polarizer 250 is attached on the surface of the display substrate 210 of the lower display substrate 220 on the back side.
  • a second inclined surface 251 is formed at a joint of the lower surface of the lower polarizer 250 and the side surface of the lower polarizer 250, and the second inclined surface 251 is a flat surface, the function of which will be described below.
  • a second inclined surface 251 is formed at each of the lower surface of the lower polarizer 250 and the side surfaces of the left and right opposite sides of the lower polarizer 250, but the present invention is not limited thereto, for example, A second slope 251 may be formed at a joint between the lower surface of the lower polarizer 250 and the side surfaces of the front and rear opposite sides of the lower polarizer 250, so that four second slopes 251 may be formed in total.
  • FIG. 4 is a schematic structural view of a liquid crystal display according to an embodiment of the present invention.
  • a liquid crystal display includes: the backlight module 100 shown in FIGS. 1 and 2 and the liquid crystal panel 200 shown in FIG.
  • the liquid crystal panel 200 and the backlight module 100 are assembled together, such that the lower polarizer 250 is directly disposed on the upper surface of the plastic frame 140.
  • the lower polarizer 250 is directly disposed on the upper surface of the plastic frame 140, and the second inclined surface 251 of the lower polarizer 250 is correspondingly matched with the first inclined surface 151 of the bevel body 150.
  • a mouth-shaped glue 300 is provided between the second inclined surface 251 of the lower polarizer 250 and the first inclined surface 151 of the bevel body 150 and between the lower surface of the lower polarizer 250 and the upper surface of the bezel 140.
  • the attachment of the square-shaped adhesive 300 having a wide width can be satisfied, thereby greatly facilitating the processing and assembly of the adhesive 300.
  • FIG. 5 is a schematic structural view of a liquid crystal display according to another embodiment of the present invention.
  • the second slope 251 of the lower polarizer 250 and the first slope 151 of the ramp body 150 have mutually matching curved surfaces.
  • the second slope 251 has a convex shape.
  • the first slope 151 has a concave shape.
  • the second slope 251 may have a concave shape, and the first slope 151 may have a convex shape.
  • the second slope 251 and the first slope 151 have a male-female shape.
  • the attachment space of the lip glue is expanded, thereby greatly facilitating the processing and assembly of the lip glue, thereby saving time and cost.

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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)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种背光模块，其包括：背板（110）；导光板（120），设置于背板（110）上；光学膜片（130），设置于导光板（120）上；胶框（140），与背板（110）固定结合，从而固定导光板（120）和光学膜片（130）；斜面体（150），设置于胶框（140）的上表面上，斜面体（150）的斜面与胶框（140）的上表面平滑衔接。扩展了口字胶的贴附空间，从而给口字胶的加工及组装带来极大的便利，进而节省时间和成本。

Description

背光模块及具有该背光模块的液晶显示器 技术领域
本发明属于液晶显示技术领域，具体地讲，涉及一种背光模块及具有该背光模块的液晶显示器。
背景技术
随着光电与半导体技术的演进，也带动了平板显示器(FlatPanel Display)的蓬勃发展，而在诸多平板显示器中，液晶显示器(Liquid Crystal Display，简称LCD)因具有高空间利用效率、低消耗功率、无辐射以及低电磁干扰等诸多优越特性，已成为市场的主流。
随着超窄边框的液晶显示器的发展，胶框宽度越来越窄，这样会给在胶框上贴附的口字胶的加工及组装带来很大的困难，特别是当采用胶框不再超出液晶面板的设计时口字胶的加工及组装尤为困难。例如，在胶框的宽度为0.6mm时，其上贴附的口字胶的宽度只有0.3mm左右，这样宽度的口字胶的加工非常困难，并且在胶框上的贴附也非常困难。
发明内容
为了解决上述现有技术的问题，本发明的目的在于提供一种能够增加口字胶贴附空间的背光模块及具有该背光模块的液晶显示器。
根据本发明的一方面，提供了一种背光模块，其包括：背板；导光板，设置于所述背板上；光学膜片，设置于所述导光板上；胶框，与所述背板固定结合，从而固定所述导光板和所述光学膜片；斜面体，设置于所述胶框的上表面上，所述斜面体的斜面与所述胶框的上表面平滑衔接。
可选地，所述斜面体的形状为底面是直角三角形的直三棱柱，所述斜面体的一直角面设置于所述胶框的上表面上，所述斜面体的另一直角面与所述胶框的外侧面平齐，所述斜面体的斜面为平面。
可选地，所述斜面体的形状为底面是类直角三角形的类直三棱柱，所述类直角三角形的两条直角边为直边，所述类直角三角形的斜边为曲边，所述斜面体的一直角面设置于所述胶框的上表面上，所述斜面体的另一直角面与所述胶框的外侧面平齐，所述斜面体的斜面为曲面。
可选地，所述斜面体与所述胶框一体成型。
可选地，所述胶框的内侧面具有凹槽，所述胶框的内侧面贴合于所述导光板的侧面，所述光学膜片的侧端容置于所述凹槽内。
根据本发明的另一方面，还提供了一种液晶显示器，其包括背光模块以及设置于所述背光模块上的液晶面板；所述背光模块包括：背板；导光板，设置于所述背板上；光学膜片，设置于所述导光板上；胶框，与所述背板固定结合，从而固定所述导光板及所述光学膜片；斜面体，设置于所述胶框的上表面上，所述斜面体的第一斜面与所述胶框的上表面平滑衔接；所述液晶面板包括：上显示基板；下显示基板，与所述上显示基板对盒设置；上偏光片，设置于所述上显示基板的上表面上；下偏光片，设置于所述下显示基板的下表面上，且所述下偏光片设置于所述胶框的上表面上，所述下偏光片的下表面和侧表面的连接处形成有第二斜面，所述第二斜面与所述第一斜面相互配合。
可选地，所述斜面体的形状为底面是直角三角形的直三棱柱，所述斜面体的一直角面设置于所述胶框的上表面上，所述斜面体的另一直角面与所述胶框的外侧面平齐，所述第一斜面和所述第二斜面为相互配合的平面。
可选地，所述斜面体的形状为底面是类直角三角形的类直三棱柱，所述类直角三角形的两条直角边为直边，所述类直角三角形的斜边为曲边，所述斜面体的一直角面设置于所述胶框的上表面上，所述斜面体的另一直角面与所述胶框的外侧面平齐，所述第一斜面和所述第二斜面为相互配合的曲面。
可选地，所述第一斜面和所述第二斜面之间以及所述下偏光片的下表面与所述胶框的上表面之间设置有粘合胶。
本发明的有益效果：本发明的背光模块及液晶显示器，扩展了口字胶的贴附空间，从而给口字胶的加工及组装带来极大的便利，进而节省时间和成本。
附图说明
通过结合附图进行的以下描述，本发明的实施例的上述和其它方面、特点和优点将变得更加清楚，附图中：
图1是根据本发明的实施例的背光模块的立体图；
图2是根据本发明的实施例的背光模块的侧视剖面图；
图3是根据本发明的实施例的液晶面板的结构示意图；
图4是根据本发明的实施例的液晶显示器的结构示意图；
图5是根据本发明的另一实施例的液晶显示器的结构示意图。
具体实施方式
以下，将参照附图来详细描述本发明的实施例。然而，可以以许多不同的形式来实施本发明，并且本发明不应该被解释为限制于这里阐述的具体实施例。相反，提供这些实施例是为了解释本发明的原理及其实际应用，从而使本领域的其他技术人员能够理解本发明的各种实施例和适合于特定预期应用的各种修改。
在附图中，为了清楚起见，夸大了层和区域的厚度。相同的标号在说明书和附图中始终表示相同的元件。
图1是根据本发明的实施例的背光模块的立体图。图2是根据本发明的实施例的背光模块的侧视剖面图。
参照图1和图2，根据本发明的实施例的背光模块100包括：背板110、导光板120、光学膜片130、胶框140、斜面体150。应当理解的是，根据本发明的实施例的液晶面板200还可以包括其他必要的元器件，诸如光源、反射元件等。
导光板120承载于背板110上，光学膜片130设置于导光板120上。在本实施例中，示出了三张光学膜片130，但本发明并不对光学膜片130的数量作限制，可以根据实际需求而设置。
胶框140由四个侧板首尾衔接而成，从而形成一容置空间。胶框140设置于背板110上，从而使导光板120和光学膜片130容置于所述容置空间内。胶框140与背板110固定结合，从而将导光板120和光学膜片130固定于所述容置空间内。
作为导光板120和光学膜片130固定于所述容置空间内的一种实施方式，进一步地，胶框140的内侧面具有凹槽141。当导光板120和光学膜片130容置于所述容置空间内时，胶框140的内侧面与导光板120的侧面相对设置或者胶框140的内侧面与导光板120的侧面彼此贴合，光学膜片130的侧端容置于凹槽141内，这样可以较为简单且牢固地将导光板120和光学膜片130固定于所述容置空间内。需要说明的是，也可以通过其他合适的方式实现导光板120和光学膜片130的固定。
在本实施例中，示出了两个斜面体150，这两个斜面体150分别设置于胶框140的相对两个侧板的上表面上，但本发明并不限制于此。例如，可以设置四个斜面体150，在胶框140的各个侧板的上表面上各设置一个斜面体150。斜面体150的具体作用将在下面描述，以下先对斜面体150的具体结构进行详细描述。
在本实施例，为了加工方便，从而节省成本和时间，优选地，斜面体150的形状为底面是直角三角形的直三棱柱。这样，斜面体150的一直角面设置于胶框140的上表面上，斜面体150的另一直角面与胶框140的外侧面平齐(或称处于同一平面)，所述斜面体150的第一斜面151为平面，并且所述斜面体150的第一斜面151与胶框140的上表面平滑衔接。当然，应当理解的是，可以将斜面体150加工成其他合适的形状，只要其具有扩展口字胶贴附面积且与胶框140的上表面平滑衔接的斜面即可。
进一步地，可以在注塑形成胶框140时，直接通过设计新的胶框模具，使胶框140的外侧面与胶框140的上表面的交汇处向上突出形成斜面体150即可，换句话讲，斜面体150与胶框140一体成型，这样可以同时形成斜面体150与胶框140，更加省时省力。
图3是根据本发明的实施例的液晶面板的结构示意图。
参照图3，根据本发明的实施例的液晶面板200包括：上显示基板(或称彩色滤光片基板)210、下显示基板(或称阵列基板)220、液晶层230、上偏光片240及下偏光片250。应当理解的是，根据本发明的实施例的液晶面板200还可以包括其他必要的元器件，诸如将液晶层230密封在上显示基板210和下显示基板220之间的框胶、驱动元件等。
上显示基板210和下显示基板220对盒设置。液晶层230夹设于上显示基板210和下显示基板220之间，并且液晶层230中包含若干液晶分子。上偏光片240贴附在上显示基板210的上表面上，也就是说，上偏光片240贴附在上显示基板210的背向下显示基板220的表面上。下偏光片250贴附在下显示基板220的下表面上，也就是说，下偏光片250贴附在下显示基板220的背向上显示基板210的表面上。
进一步地，下偏光片250的下表面与下偏光片250的侧表面的连接处形成有第二斜面251，该第二斜面251为一平面，其作用将在下面描述。此外，在本实施例中，下偏光片250的下表面与下偏光片250的左右相对两侧的侧表面的连接处各形成一第二斜面251，但本发明并不限制于此，例如还可以在下偏光片250的下表面与下偏光片250的前后相对两侧的侧表面的连接处各形成一第二斜面251，这样可以共形成四个第二斜面251。
图4是根据本发明的实施例的液晶显示器的结构示意图。
参照图4，根据本发明的实施例的液晶显示器包括：图1和图2所示的背光模块100和图3所示的液晶面板200。液晶面板200和背光模块100组装在一起，这样，下偏光片250直接设置于胶框140的上表面上。
当液晶面板200设置于背光模块100上时，下偏光片250直接设置于胶框140的上表面上，且下偏光片250的第二斜面251与斜面体150的第一斜面151对应配合。
此外，通过在下偏光片250的第二斜面251与斜面体150的第一斜面151之间以及下偏光片250的下表面与胶框140的上表面之间设置有口字胶300。这里，通过第二斜面251和第一斜面151的设置，可以满足具有较宽的宽度的口字胶300的贴附，从而给口字胶300的加工及组装带来极大的便利。
图5是根据本发明的另一实施例的液晶显示器的结构示意图。
参照图5，与上述的液晶显示器不同的是，下偏光片250的第二斜面251与斜面体150的第一斜面151呈相互配合的曲面，例如，这里，第二斜面251呈凸出形状，第一斜面151呈凹陷形状。作为另外一种实施方式，第二斜面251可以呈凹陷形状，而第一斜面151可以呈凸出形状。换句话讲，第二斜面251与第一斜面151的形状呈公母配合。
综上所述，根据本发明的各实施例，扩展了口字胶的贴附空间，从而给口字胶的加工及组装带来极大的便利，进而节省时间和成本。
虽然已经参照特定实施例示出并描述了本发明，但是本领域的技术人员将理解：在不脱离由权利要求及其等同物限定的本发明的精神和范围的情况下，可在此进行形式和细节上的各种变化。

Claims (15)

  1. 一种背光模块，其中，包括：
    背板；
    导光板，设置于所述背板上；
    光学膜片，设置于所述导光板上；
    胶框，与所述背板固定结合，从而固定所述导光板和所述光学膜片；
    斜面体，设置于所述胶框的上表面上，所述斜面体的斜面与所述胶框的上表面平滑衔接。
  2. 根据权利要求1所述的背光模块，其中，所述斜面体的形状为底面是直角三角形的直三棱柱，所述斜面体的一直角面设置于所述胶框的上表面上，所述斜面体的另一直角面与所述胶框的外侧面平齐，所述斜面体的斜面为平面。
  3. 根据权利要求1所述的背光模块，其中，所述斜面体的形状为底面是类直角三角形的类直三棱柱，所述类直角三角形的两条直角边为直边，所述类直角三角形的斜边为曲边，所述斜面体的一直角面设置于所述胶框的上表面上，所述斜面体的另一直角面与所述胶框的外侧面平齐，所述斜面体的斜面为曲面。
  4. 根据权利要求1所述的背光模块，其中，所述斜面体与所述胶框一体成型。
  5. 根据权利要求2所述的背光模块，其中，所述斜面体与所述胶框一体成型。
  6. 根据权利要求3所述的背光模块，其中，所述斜面体与所述胶框一体成型。
  7. 根据权利要求1所述的背光模块，其中，所述胶框的内侧面具有凹槽，所述胶框的内侧面贴合于所述导光板的侧面，所述光学膜片的侧端容置于所述凹槽内。
  8. 一种液晶显示器，其中，包括背光模块以及设置于所述背光模块上的液晶面板；
    所述背光模块包括：
    背板；
    导光板，设置于所述背板上；
    光学膜片，设置于所述导光板上；
    胶框，与所述背板固定结合，从而固定所述导光板及所述光学膜片；
    斜面体，设置于所述胶框的上表面上，所述斜面体的第一斜面与所述胶框的上表面平滑衔接；
    所述液晶面板包括：
    上显示基板；
    下显示基板，与所述上显示基板对盒设置；
    上偏光片，设置于所述上显示基板的上表面上；
    下偏光片，设置于所述下显示基板的下表面上，且所述下偏光片设置于所述胶框的上表面上，所述下偏光片的下表面和侧表面的连接处形成有第二斜面，所述第二斜面与所述第一斜面相互配合。
  9. 根据权利要求8所述的液晶显示器，其中，所述斜面体的形状为底面是直角三角形的直三棱柱，所述斜面体的一直角面设置于所述胶框的上表面上，所述斜面体的另一直角面与所述胶框的外侧面平齐，所述第一斜面和所述第二斜面为相互配合的平面。
  10. 根据权利要求8所述的液晶显示器，其中，所述斜面体的形状为底面 是类直角三角形的类直三棱柱，所述类直角三角形的两条直角边为直边，所述类直角三角形的斜边为曲边，所述斜面体的一直角面设置于所述胶框的上表面上，所述斜面体的另一直角面与所述胶框的外侧面平齐，所述第一斜面和所述第二斜面为相互配合的曲面。
  11. 根据权利要求8所述的液晶显示器，其中，所述斜面体与所述胶框一体成型。
  12. 根据权利要求8所述的液晶显示器，其中，所述第一斜面和所述第二斜面之间以及所述下偏光片的下表面与所述胶框的上表面之间设置有粘合胶。
  13. 根据权利要求9所述的液晶显示器，其中，所述第一斜面和所述第二斜面之间以及所述下偏光片的下表面与所述胶框的上表面之间设置有粘合胶。
  14. 根据权利要求10所述的液晶显示器，其中，所述第一斜面和所述第二斜面之间以及所述下偏光片的下表面与所述胶框的上表面之间设置有粘合胶。
  15. 根据权利要求11所述的液晶显示器，其中，所述第一斜面和所述第二斜面之间以及所述下偏光片的下表面与所述胶框的上表面之间设置有粘合胶。
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