WO2016134553A1 - 背光模组及包含其的液晶显示装置 - Google Patents

背光模组及包含其的液晶显示装置 Download PDF

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Publication number
WO2016134553A1
WO2016134553A1 PCT/CN2015/073740 CN2015073740W WO2016134553A1 WO 2016134553 A1 WO2016134553 A1 WO 2016134553A1 CN 2015073740 W CN2015073740 W CN 2015073740W WO 2016134553 A1 WO2016134553 A1 WO 2016134553A1
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Prior art keywords
transflective
reflective
backlight module
light
liquid crystal
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PCT/CN2015/073740
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English (en)
French (fr)
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樊勇
张简圣哲
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深圳市华星光电技术有限公司
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Publication of WO2016134553A1 publication Critical patent/WO2016134553A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic 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

Definitions

  • the present invention relates to the field of liquid crystal display, and more particularly to a backlight module and a liquid crystal display device including the same.
  • the liquid crystal panel since the liquid crystal panel itself does not emit light, it is necessary to perform display by means of an external light source.
  • a backlight module has two kinds of backlights and a reflective light source. Since the backlight source does not need to be affected by the environment, the light sources in the current liquid crystal display devices are almost all backlight sources.
  • the backlight module can be basically divided into two types: side-in and direct-down.
  • the side entry type has the advantages of low power consumption and thin thickness.
  • the light guide plate is required for the side entry type. Therefore, the weight of the side-entry backlight module is relatively large, especially for a larger backlight size, which increases the overall weight of the backlight module.
  • the backlight module with the light guide plate has a high cost.
  • the present invention provides a backlight module and a liquid crystal display device including the same.
  • the backlight module has the advantages of light weight and low cost.
  • a backlight module comprising:
  • the side reflection piece and the bottom reflection piece constitute a hollow reflection cavity
  • a transflective membrane disposed at the opening of the reflective chamber, wherein the transflective membrane overlaps the light source and the side reflector.
  • the light emitted by the light source is derived from the transflective diaphragm or passes through the bottom reflector and side reflection. After the sheet is reflected, it is exported through a transflective membrane. Since the backlight module of the present invention does not need to be provided with a light guide plate, the overall weight and production cost of the backlight module are alleviated.
  • the opposite side of the transflective diaphragm from the bottom reflective sheet is a light incident surface
  • the other side of the transflective diaphragm opposite the bottom reflective sheet is a partially reflective partially transmissive surface.
  • a projection for changing the path of the light is provided on the light incident surface of the transflective diaphragm.
  • the protrusion is configured as one or more of a cone, a pyramid or a prism that is evenly distributed on the transflective diaphragm, wherein the cross-sectional area of the protrusion is in a direction extending from the transflective diaphragm into the reflective cavity It gradually becomes smaller.
  • the transflective membrane has a light transmissive membrane and a reflective member disposed on the partially reflective partially transmissive surface of the translucent membrane, wherein the reflective members are distributed in a matrix on the translucent membrane.
  • the light transmissive film is made of one of polycarbonate, polyterephthalic plastic, polymethyl methacrylate or clear glass.
  • the reflector is made of one of white ink, reflective ink, silver or aluminum. This arrangement simplifies the process and reduces manufacturing costs.
  • a transparent support for supporting the transflective diaphragm is disposed within the reflective cavity.
  • the support member abuts on the light incident side of the transflective diaphragm to support the transflective diaphragm to prevent the transflective diaphragm from being bent downward and deformed under its own gravity.
  • the transflective film can be made thinner to reduce the material cost and to reduce the size of the backlight module.
  • the support member is in contact with the non-reflective member region of the transflective membrane
  • the contact area of the support member and the transflective diaphragm is not more than 30 square millimeters. This setting minimizes the effect of the support on light propagation.
  • the support member is configured in a truncated cone shape in which the cross-sectional area gradually increases in a direction from the transflective diaphragm to the bottom reflection sheet.
  • the truncated-shaped support has good mechanical properties and is compact in contact with the bottom reflector and the transflective diaphragm, which helps to improve the stability of the supported transflective diaphragm.
  • a liquid crystal display device comprising the above backlight module.
  • the liquid crystal display device also has the characteristics of light weight and low cost.
  • the invention has the advantages that the backlight module does not need to be provided with a light guide plate, thereby reducing the overall weight thereof.
  • the backlight module has a simple process and low production cost.
  • FIG. 1 shows a structural view of a backlight module in accordance with the present invention.
  • Fig. 2 is a view showing the structure of a liquid crystal display device according to the present invention.
  • FIG. 1 shows a backlight module 10 in accordance with the present invention.
  • the backlight module 10 includes a bottom reflection sheet 4 , a frame 2 , a light source 3 , a side reflection sheet 5 , and a transflective diaphragm 1 .
  • the bottom reflection sheet 4 is horizontally disposed.
  • the bezel 2 is provided at the edge of the bottom reflection sheet 4.
  • the side reflection sheet 5 is disposed on the bezel 2 and forms a hollow reflection cavity 6 with the bottom reflection sheet 4.
  • the light source 3 is fixedly disposed on the wall of the reflective cavity 6.
  • the transflective diaphragm 1 is disposed at the opening of the reflecting chamber 6 and overlaps the light source 3 and the side reflection sheet 5.
  • the backlight module 10 of the present invention it is not necessary to provide a light guide plate, thereby avoiding the problem of heavy weight and high cost of the backlight module provided with the light guide plate.
  • the light emitted by the light source 3 is led out by the transflective film 1, or passes through the transflective film 1 after passing through the bottom reflecting sheet 4 and the side reflecting sheet 5.
  • the light utilization efficiency is high, thereby improving the display quality of the matched liquid crystal display device.
  • the transflective diaphragm 1 is overlapped between the light source 3 and the side reflection sheet 5, which helps to reduce the size of the backlight module 10.
  • the side of the transflective diaphragm 1 opposite to the bottom reflection sheet 4 is a light incident surface.
  • the other side of the transflective diaphragm 1 opposite to the bottom reflection sheet 4 is a partially reflective partial transmission surface. Therefore, when the light emitted from the light source 3 enters the transflective diaphragm 1 through the light incident surface, part of the light is transmitted from the transflective diaphragm 1 and the other portion of the light is reflected to the bottom reflective sheet 4 or the side reflective sheet 5. On, to continue to spread until it is seen through the transflective membrane 1.
  • the straight line with arrows in the figure indicates the direction and path of light propagation.
  • the transflective diaphragm 1 of such a structure allows light to be emitted from the transflective diaphragm 1 at an approximately quasi-linear angle, ensuring uniformity of light.
  • a projection 13 is provided on the opposite side (light incident surface) of the transflective diaphragm 1 from the bottom reflection sheet 4 for changing the path of the light.
  • the projection 13 can be configured in a conical shape.
  • the cross-sectional area of the projection 13 gradually becomes smaller in a direction in which the transflective diaphragm 1 extends into the reflection chamber 6.
  • the projection 13 of the present invention is not limited to this configuration. It can also be in other structural forms. For example, one or more of a pyramid or a prism. Then, such a convex structure capable of changing the light path should fall within the protection scope of the present invention.
  • the projections 13 are uniformly distributed on the transflective diaphragm 1. Therefore, when the light from the light source 3 enters the transflective film 1, it is refracted at the protrusions 13, and the propagation path of the light is changed, so that the light is more quickly emitted from the transflective film 1 in a nearly collimated manner.
  • the problem of large visual character bias of the liquid crystal panel is improved by such an arrangement.
  • the light utilization rate is increased and the brightness loss of the light is reduced.
  • the transflective membrane 1 has a light transmissive membrane 12 and a reflector 11.
  • the reflector 11 is disposed on a side of the light transmissive film 12 opposite to the bottom reflection sheet 4.
  • the reflecting members 11 are distributed in a matrix on the light transmissive film 12. Therefore, the light of the light source 3 can reach a relatively uniform state after passing through the transflective diaphragm 1 provided.
  • the matrix-shaped reflecting member 11 makes the preparation process simple and simplifies the process production.
  • the transflective film 1 is based on a light transmissive film 12 having a high light transmittance. That is, the light transmissive film 12 may be made of one of polycarbonate, polyterephthalic plastic, polymethyl methacrylate or transparent glass. A reflector 11 is partially disposed on the transparent film 12. And there is a gap 14 between the reflectors 11 for the transmission of light.
  • the reflecting member 11 may be made of one of white ink, reflective ink, silver or aluminum.
  • the reflecting member 11 may be a 2D pattern or a 3D pattern.
  • the reflection member 11 of the 2D pattern may be of any shape such as a square shape, a circular shape, a polygonal shape, or a quincunx shape.
  • the reflection member 11 of the 2D pattern can be printed onto the surface of the light transmissive film 12 by printing.
  • the reflecting member 11 of the 3D pattern may be a convex structure such as a square projection, a cylindrical projection or a prismatic projection.
  • a material having a high reflectance is coated on the surface of the light-transmissive film 12, and is formed by etching or machining.
  • a transparent support member 8 is provided in the reflection chamber 6. One end of the support member 8 abuts on the light incident surface of the transflective diaphragm 1 and the other end abuts against the bottom reflective sheet 4 to support the transflective diaphragm 1 to prevent the transflective diaphragm 1 from being in itself Deformed by bending downward under gravity.
  • the transflective film 1 can be made thinner by providing the support member 8 to reduce the material cost and to reduce the size of the backlight module 10.
  • the support member 8 is in contact with the non-reflective member region of the transflective membrane 1, that is, one end of the support member 8 abuts against the region of the gap 14. Further, the support member 8 is configured in a truncated cone shape, and the cross-sectional area of the support member 8 is gradually increased in the direction from the transflective diaphragm 1 to the bottom reflection sheet 4. The support is ensured by this support.
  • the contact area of the support member 8 and the transflective diaphragm 1 is not more than 30 square millimeters. For example, the contact area can be 20 square millimeters.
  • the distribution density of the support member 8 gradually decreases from the center to the peripheral direction.
  • the support member 8 arranged in this way not only ensures the stability of the support, but also minimizes the influence of the support member 8 on the light propagation, and at the same time takes into consideration the economic benefits. It should be noted that only one support member 8 is schematically shown in Fig. 1, and the distribution of the support member 8 in the entire reflection chamber 6 will be apparent to those skilled in the art, and thus a detailed description will be omitted herein.
  • the backlight module 10 further includes an optical film 7 disposed on the light exiting side of the transflective film 1.
  • the liquid crystal display device 100 includes a liquid crystal display 20 and a backlight module 10.
  • the display device 100 can be any product or component having a display function, such as a liquid crystal television, a liquid crystal display, a digital photo frame, a mobile phone, a tablet computer, or the like.

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

Abstract

一种背光模组（10）及包含其的液晶显示装置（100）。背光模组（10）包括水平设置的底反射片（4）、设置在底反射片（4）边缘的边框（2）、固定设置在边框（2）上的与底反射片（4）组成中空的反射腔（6）的侧反射片（5）、固定设置在反射腔（6）内的光源（3），以及设置在反射腔（6）的开口处的透反式膜片（1），其中，透反式膜片（1）搭接在光源（3）和侧反射片（5）上。使得背光模组（10）整体重量轻和生产成本低。

Description

背光模组及包含其的液晶显示装置
相关申请的交叉引用
本申请要求享有于2015年02月26日提交的名称为“背光模组及包含其的液晶显示装置”的中国专利申请CN201510092105.9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
本发明涉及液晶显示领域，尤其是涉及一种背光模组及包含其的液晶显示装置。
背景技术
在传统的液晶显示装置中，由于液晶面板本身并不发光，需要借助外加光源才能进行显示。而通常这样的背光模组有背光源和反射式光源两种，由于背光式光源无需受环境影响，所以目前的液晶显示装置中的光源几乎都为背光式光源。
并且现在的背光模组，基本可以分为侧入式和直下式两种方式。侧入式具有功耗小，厚度薄等优点。但由于侧入式需要使用导光板。从而使得侧入式背光模组的重量较大，尤其是对于较大的背光源尺寸而言，增加了背光模组的整体重量。同时，这种具有导光板的背光模组的成本较高。
由此，需要一种既能实现轻量化又能使成本降低的背光模组。
发明内容
针对现有技术中所存在的上述技术问题，本发明提出了一种背光模组及包含其的液晶显示装置。该背光模组具有重量轻，成本低的优点。
根据本发明的第一方面，提出了一种背光模组，包括：
水平设置的底反射片，
设置在底反射片边缘的边框，
固定设置在边框上的侧反射片，侧反射片与底反射片组成中空的反射腔，
固定设置在反射腔内的光源，以及
设置在反射腔的开口处的透反式膜片，其中，透反式膜片搭接在光源和侧反射片上。
在本发明的背光模组中，光源发出的光线由透反式膜片导出，或者经过底反射片和侧反射 片反射后经过透反式膜片导出。由于本发明的背光模组不需要设置导光板，从而减轻了背光模组的整体重量和生产成本。
在一个实施例中，透反式膜片的与底反射片相对的一面为入光面，透反式膜片的与底反射片相背的另一面为局部反射局部透射面。通过这种设置，当光源发出的光线经由入光面进入透反式膜片时，一部分的光从局部反射局部透射面透出，而另一部分光线被反射到底反射片或侧反射片上，以继续传播，直到从透反式膜片上透出。
在一个实施例中，在透反式膜片的入光面上设置用于改变光线路径的凸起。优选地，凸起构造为在透反式膜片上均布的圆锥、棱锥或棱台中的一种或多种，其中凸起的截面面积在由透反式膜片向反射腔内延伸的方向上逐渐变小。通过这种设置可以在入光面处改变光线的传播路径，使得光线迅速地以近似准直光方式向透反式膜片射出，以克服液晶面板大视觉角色偏的问题。
在一个实施例中，透反式膜片具有透光膜片和设置在透光膜片的局部反射局部透射面上的反射件，其中，反射件在透光膜片上呈矩阵式分布。通过这种设置能使得光源的出光达到比较均匀的状态。同时，矩阵式分布的反射件制备过程简单，简化了工艺生产。
在一个实施例中，透光膜片由聚碳酸酯、聚对苯二甲酸类塑料、聚甲基丙烯酸甲酯或透明玻璃中的一种制成，
和/或反射件由白色油墨、反光油墨、银或铝中的一种制成。通过这种设置简化了工艺，减低了制造成本。
在一个实施例中，在反射腔内设置用于支撑透反式膜片的透明的支撑件。该支撑件抵接在透反式膜片的入光侧，以支撑透反式膜片，防止透反式膜片在自身重力下向下弯曲而变形。由此，通过设置支撑件可以将透反式膜片做的更薄，以降低材料成本，并有利于缩减背光模组的尺寸。
在一个实施例中，支撑件与透反式膜片的非反射件区域接触，
和/或支撑件与透反式膜片的接触面积不大于30平方毫米。通过这种设置将支撑件对光线传播的影响程度降到了最小。
在一个实施例中，支撑件构造为在由透反式膜片到底反射片的方向上截面面积逐渐增大的圆台状，
和/或在反射腔内从中间到四周方向上，支撑件分布密度减小。圆台状的支撑件机械性能良好，并与底反射片和透反式膜片的接触紧凑，有助于提高支撑透反式膜片的稳定性。通过设置支撑件的分布密度，优化了背光模组的结构和制造成本，进一步提高了透反式膜片的稳定性。
根据本发明的第二方面，提供一种液晶显示装置，其包括上述的背光模组。该液晶显示装 置亦具有重量轻，成本低的特点。
与现有技术相比，本发明的优点在于，背光模组不需要设置导光板，减轻了其整体重量。该背光模组工艺简单，生产成本低。
附图说明
下面将结合附图来对本发明的优选实施例进行详细地描述。在图中：
图1显示了根据本发明的背光模组的结构图。
图2显示了根据本发明的液晶显示装置的结构示意图。
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绘制。
具体实施方式
下面将结合附图对本发明做进一步说明。
图1显示了根据本发明的背光模组10。如图1所示，背光模组10包括底反射片4、边框2、光源3、侧反射片5和透反式膜片1。其中，底反射片4呈水平设置。边框2设置在底反射片4的边缘。侧反射片5设置在边框2上，并与底反射片4形成中空的反射腔6。而光源3固定设置在反射腔6的壁上。透反式膜片1设置在反射腔6的开口处，并搭接在光源3和侧反射片5。
在本发明的背光模组10中，不需要设置导光板，从而避免了设置有导光板的背光模组的重量重，成本高的问题。该背光模组10中，光源3发出的光线由透反式膜片1导出，或者经过底反射片4和侧反射片5后经过透反式膜片1导出。使得光线利用率高，从而提高与之匹配的液晶显示装置的显示品质。另外，透反式膜片1搭接在光源3和侧反射片5，有助于降低了背光模组10的尺寸。
根据本发明，透反式膜片1的与底反射片4相对的一面为入光面。而透反式膜片1的与底反射片4相背的另一面为局部反射局部透射面。由此，当光源3发出的光线经由入光面进入透反式膜片1时，一部分的光从透反式膜片1透出，而另一部分光线被反射到底反射片4或侧反射片5上，以继续传播，直到从透反式膜片1上透出。图中带箭头的直线表示了光的传播方向和路径。由此，这种结构的透反式膜片1使光线以近似准直线的角度从透反式膜片1上向外射出，保证了光线的均匀性。
在一个实施例中，在透反式膜片1的与底反射片4相对的一面(入光面)上设置凸起13，以用于改变光线的路径。优选地，凸起13可构造为圆锥状。并且凸起13的截面面积在由透反式膜片1向反射腔6内延伸的方向上逐渐变小。但是本发明的凸起13并不限于这种结构形式， 还可以为其它结构形式。例如棱锥、棱台中的一种或多种。则这种能改变光线路径的凸起结构均应落入本发明的保护范围。
优选地，为了简化制造工艺，在透反式膜片1上，凸起13为均匀分布。从而，光源3的光线在进入透反式膜片1时，在凸起13处发生折射，改变光线的传播路径，使得光线更迅速地近似准直光方式从透反式膜片1射出。由此，通过这种设置改善了液晶面板大视觉角色偏的问题。同时，提高了光线利用率，减少的光线的亮度损失。
根据本发明，透反式膜片1具有透光膜片12和反射件11。其中，反射件11设置在透光膜片12的与底反射片4相背的一面上。优选地，反射件11在透光膜片12上呈矩阵式分布。从而，光源3的光线经过这种设置的透反式膜片1后，能达到比较均匀的状态。同时，矩阵式分布的反射件11使得制备过程简单，简化了工艺生产。
具体地，透反式膜片1以透光率高的透光膜片12为基底。也就是，透光膜片12可由聚碳酸酯、聚对苯二甲酸类塑料、聚甲基丙烯酸甲酯或透明玻璃中的一种制造而成。而在透光膜片12上局部设置有反射件11。并且反射件11之间具有间隙14，此间隙14用于光线透射。而反射件11可由白色油墨、反光油墨、银或铝中的一种制成。
反射件11可以是2D图样或者3D图样。2D图样的反射件11可以为任意形状，例如，方形、圆形、多边形或梅花形等。并且，2D图样的反射件11可以采用印刷的方式将其印刷到透光膜片12的表面上。3D图样的反射件11可以为凸起结构，如方形的凸起、圆柱型的凸起或棱台型的凸起等。在制造过程中，将具有高反射率材料涂布在透光膜片12的表面上，并利用刻蚀的方式或机械加工的方式制作。
在反射腔6内设置透明的支撑件8。该支撑件8的一端抵接在透反式膜片1的入光面上，另一端抵接在底反射片4上，以支撑透反式膜片1，防止透反式膜片1在自身重力下向下弯曲而变形。由此，通过设置支撑件8可以将透反式膜片1做的更薄，以降低材料成本，并有利于缩减背光模组10的尺寸。
支撑件8与透反式膜片1的非反射件区域接触，也就是支撑件8的一端抵接在间隙14的区域范围内。并且，支撑件8构造为圆台状，并且在由透反式膜片1到底反射片4的方向上，支撑件8的截面面积逐渐增大。通过这种支撑方式保证了支撑的稳定性。支撑件8与透反式膜片1的接触面积不大于30平方毫米。例如，接触面积可以为20平方毫米。同时，在反射腔6内，从中间到四周方向上，支撑件8的分布密度逐渐减小。这种方式设置的支撑件8既保证了支撑的稳定性，又使支撑件8对光线传播的影响程度降到了最小，同时兼顾了经济效益。需要说明的是，图1中仅示意性的显示了一个支撑件8，而在整个反射腔6内支撑件8的分布对本领域技术人员是显而易见的，因此在此略去详细描述。
背光模组10还包括光学膜片7，其设置在透反式膜片1的出光侧。
根据本发明还提供一种液晶显示装置100。如图2所示，液晶显示装置100包括液晶显示屏20和背光模组10。所述显示装置100可以为液晶电视、液晶显示器、数码相框、手机、平板电脑等任何具有显示功能的产品或部件。
以上所述仅为本发明的优选实施方式，但本发明保护范围并不局限于此，任何本领域的技术人员在本发明公开的技术范围内，可容易地进行改变或变化，而这种改变或变化都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求书的保护范围为准。

Claims (18)

  1. 一种背光模组，其中，包括：
    水平设置的底反射片，
    设置在所述底反射片边缘的边框，
    固定设置在所述边框上的侧反射片，所述侧反射片与所述底反射片组成中空的反射腔，
    固定设置在所述反射腔内的光源，以及
    设置在所述反射腔的开口处的透反式膜片，其中，所述透反式膜片搭接在所述光源和所述侧反射片上。
  2. 根据权利要求1所述的背光模组，其中，所述透反式膜片的与所述底反射片相对的一面为入光面，所述透反式膜片的与所述底反射片相背的另一面为局部反射局部透射面。
  3. 根据权利要求2所述的背光模组，其中，在所述透反式膜片的入光面上设置用于改变光线路径的凸起。
  4. 根据权利要求3所述的背光模组，其中，所述凸起构造为在所述透反式膜片上均布的圆锥、棱锥或棱台中的一种或多种，其中所述凸起的截面面积在由所述透反式膜片向所述反射腔内延伸的方向上逐渐变小。
  5. 根据权利要求2所述的背光模组，其中，所述透反式膜片具有透光膜片和设置在所述透光膜片的局部反射局部透射面上的反射件，其中，所述反射件在所述透光膜片上呈矩阵式分布。
  6. 根据权利要求5所述的背光模组，其中，所述透光膜片由聚碳酸酯、聚对苯二甲酸类塑料、聚甲基丙烯酸甲酯或透明玻璃中的一种制成，
    和/或所述反射件由白色油墨、反光油墨、银或铝中的一种制成。
  7. 根据权利要求5所述的背光模组，其中，在所述反射腔内设置用于支撑所述透反式膜片的透明的支撑件。
  8. 根据权利要求7所述的背光模组，其中，所述支撑件与所述透反式膜片的非反射件区域接触，
    和/或所述支撑件与所述透反式膜片的接触面积不大于30平方毫米。
  9. 根据权利要求8所述的背光模组，其中，所述支撑件构造为在由所述透反式膜片到所述底反射片的方向上截面面积逐渐增大的圆台状，
    和/或在所述反射腔内从中间到四周方向上，所述支撑件分布密度减小。
  10. 一种液晶显示装置，其中，包括背光模组，所述背光模组包括：
    水平设置的底反射片，
    设置在所述底反射片边缘的边框，
    固定设置在所述边框上的侧反射片，所述侧反射片与所述底反射片组成中空的反射腔，
    固定设置在所述反射腔内的光源，以及
    设置在所述反射腔的开口处的透反式膜片，其中，所述透反式膜片搭接在所述光源和所述侧反射片上。
  11. 根据权利要求10所述的液晶显示装置，其中，所述透反式膜片的与所述底反射片相对的一面为入光面，所述透反式膜片的与所述底反射片相背的另一面为局部反射局部透射面。
  12. 根据权利要求11所述的液晶显示装置，其中，在所述透反式膜片的入光面上设置用于改变光线路径的凸起。
  13. 根据权利要求12所述的液晶显示装置，其中，所述凸起构造为在所述透反式膜片上均布的圆锥、棱锥或棱台中的一种或多种，其中所述凸起的截面面积在由所述透反式膜片向所述反射腔内延伸的方向上逐渐变小。
  14. 根据权利要求11所述的液晶显示装置，其中，所述透反式膜片具有透光膜片和设置在所述透光膜片的局部反射局部透射面上的反射件，其中，所述反射件在所述透光膜片上呈矩阵式分布。
  15. 根据权利要求14所述的液晶显示装置，其中，所述透光膜片由聚碳酸酯、聚对苯二甲酸类塑料、聚甲基丙烯酸甲酯或透明玻璃中的一种制成，
    和/或所述反射件由白色油墨、反光油墨、银或铝中的一种制成。
  16. 根据权利要求14所述的液晶显示装置，其中，在所述反射腔内设置用于支撑所述透反式膜片的透明的支撑件。
  17. 根据权利要求16所述的液晶显示装置，其中，所述支撑件与所述透反式膜片的非反射件区域接触，
    和/或所述支撑件与所述透反式膜片的接触面积不大于30平方毫米。
  18. 根据权利要求17所述的液晶显示装置，其中，所述支撑件构造为在由所述透反式膜片到所述底反射片的方向上截面面积逐渐增大的圆台状，
    和/或在所述反射腔内从中间到四周方向上，所述支撑件分布密度减小。
PCT/CN2015/073740 2015-02-26 2015-03-06 背光模组及包含其的液晶显示装置 WO2016134553A1 (zh)

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