WO2015180122A1 - 背光模组以及液晶显示器 - Google Patents

背光模组以及液晶显示器 Download PDF

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Publication number
WO2015180122A1
WO2015180122A1 PCT/CN2014/078901 CN2014078901W WO2015180122A1 WO 2015180122 A1 WO2015180122 A1 WO 2015180122A1 CN 2014078901 W CN2014078901 W CN 2014078901W WO 2015180122 A1 WO2015180122 A1 WO 2015180122A1
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WO
WIPO (PCT)
Prior art keywords
glass substrate
liquid crystal
crystal display
backlight
backlight module
Prior art date
Application number
PCT/CN2014/078901
Other languages
English (en)
French (fr)
Inventor
陈仕祥
萧宇均
阙成文
Original Assignee
深圳市华星光电技术有限公司
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US14/363,796 priority Critical patent/US20150346553A1/en
Publication of WO2015180122A1 publication Critical patent/WO2015180122A1/zh

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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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/14—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing polarised light
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • 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
    • G02F1/133553—Reflecting elements
    • 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
    • G02F1/13362—Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • 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

Definitions

  • the present invention relates to the field of liquid crystal display technologies, and in particular, to a backlight module and a liquid crystal display including the same.
  • Background Liquid crystal display or LCD (Liquid Crysta Book l Display) is a flat, ultra-thin display device consisting of a certain number of color or black-and-white pixels placed in front of a light source or reflector. LCD monitors have low power consumption and are characterized by high image quality, small size, and light weight, so they are favored by everyone and become the mainstream of displays.
  • the liquid crystal display includes a liquid crystal display and a backlight module.
  • the liquid crystal display is opposite to the backlight module, and the backlight module provides a display light source to the liquid crystal display to enable the liquid crystal display to display images.
  • the liquid crystal display panel is mainly composed of two transparent substrates and a liquid crystal sealed between the substrates.
  • the liquid crystal display is mainly a Thin Film Transistor (TFT) liquid crystal display
  • the backlight module is mainly divided into a direct type and a side type according to the position of the light source.
  • 1 is a schematic structural view of a conventional backlight module and a liquid crystal display. As shown in FIG.
  • the backlight module mainly includes a back plate, a reflective sheet, a light guide plate, and an optical film group which are sequentially stacked, and the backlight is
  • the source is disposed on the side of the light guide plate.
  • the backlight emits light, and the light is redirected and homogenized as much as possible through the light guide plate and the optical film group, and is transmitted above the optical film group to be supplied to the liquid crystal display.
  • the backlight module shown in FIG. 1 adopts a light guide plate and a correspondingly large-area optical film.
  • the price of the light guide plate and the optical film is high, and the material is prone to defects such as damage, shrinkage and deformation, thereby causing liquid crystal.
  • the display of the module is poor; in addition, when the light is transmitted in the light guide plate and the optical film group, attenuation occurs, thereby reducing the utilization efficiency of the liquid crystal display. Therefore, under the premise of providing a backlight effect, consideration should be given to Reduce the optical path of light transmitted in the light guide and optical film set.
  • the present invention provides a backlight module that does not use a light guide plate, thereby reducing the cost of the product; the backlight module can also improve the utilization rate of the light source. Improve the quality of the product.
  • An optical module includes: a back plate; a reflective sheet on the back plate; a glass substrate on the reflective sheet; the glass An optical dot structure layer is disposed on a surface of the substrate facing the reflective sheet, and the other surface of the glass substrate is a light emitting surface; a backlight is disposed on a side of the glass substrate; wherein the backlight and the glass substrate A first polarizer is further disposed, and the light emitted by the backlight passes through the first polarizer to form polarized light, enters the glass substrate, is reflected by the optical dot structure layer, and is conducted out from the light exit surface.
  • the first polarizer is attached to a side surface of the glass substrate.
  • the first polarizer is fixed by a fastener at a position away from a side surface of the glass substrate.
  • the optical dot structure layer is formed on the glass substrate by a printing process or an etching process.
  • An optical film group is further disposed between the first polarizer and the backlight.
  • An optical film set is further disposed between the first polarizer and the glass substrate.
  • the optical film group is selected from one or more arbitrary combinations of a diffusion sheet, a prism sheet and an anti-reflection film.
  • the backlight comprises a plurality of light emitting diodes.
  • a liquid crystal display including a liquid crystal display and a backlight module
  • the liquid crystal display comprises at least a TFT glass substrate, a liquid crystal layer, a CF glass substrate, and a second polarizer which are sequentially stacked.
  • the backlight module is a backlight module as described above, wherein the glass substrate in the backlight module is a TFT glass substrate in the liquid crystal display panel, and a TFT array is disposed on a light emitting surface of the glass substrate.
  • Advantageous Effects The backlight module provided by the present invention does not use a light guide plate, and even in some embodiments, the optical film set can be omitted, which reduces the cost of the product; and reduces the requirement for providing a backlight effect.
  • FIG. 1 is a schematic structural view of a conventional backlight module and a liquid crystal display.
  • 2 is a schematic structural view of a backlight module and a liquid crystal display according to Embodiment 1 of the present invention.
  • 3 is a schematic structural view of a backlight module and a liquid crystal display according to Embodiment 2 of the present invention.
  • the present invention provides an optical module including: a backplane; a reflective sheet on the backplane; and a glass substrate located in the The glass substrate is disposed on an opposite side of the reflective sheet with an optical dot structure layer, and the other surface of the glass substrate is a light emitting surface; a backlight is disposed on a side of the glass substrate; wherein the backlight A first polarizer is further disposed between the source and the glass substrate, and light emitted by the backlight passes through the first polarizer to form polarized light and enters the glass substrate, and is reflected by the optical dot structure layer.
  • the present invention also provides a liquid crystal display comprising the backlight module as described above, the liquid crystal display comprising a liquid crystal display and a backlight module, wherein the liquid crystal display comprises at least a TFT (Thin Film Transistor) a transistor) a glass substrate, a liquid crystal layer, a CF (Color Filter) glass substrate, and a second polarizer, wherein the glass substrate in the backlight module and the TFT glass substrate in the liquid crystal display are integrated, SP An optical dot required for the backlight module is disposed on one side of the same glass substrate, and a TFT array is disposed on the other surface (light emitting surface).
  • TFT Thin Film Transistor
  • CF Color Filter
  • the backlight module does not use the light guide plate, and even in some embodiments, the optical film set can be omitted, which reduces the cost of the product; and under the premise of providing a backlight effect, The optical path of the light transmitted in the light guide plate and the optical film group is reduced, the effect of improving the utilization rate of the light source is improved, and the quality of the product is improved; in addition, the backlight module reduces the structural components as described above and can be reached. The effect of reducing the thickness of the entire liquid crystal module.
  • Embodiment 1 FIG.
  • the liquid crystal display includes a liquid crystal display 2 and a backlight module 1.
  • the liquid crystal display 2 includes at least a TFT glass substrate 201, a liquid crystal layer 202, a CF glass substrate 203, and a second layer which are sequentially stacked.
  • the optical module 1 includes a backing plate 101, a reflective sheet 102 on the backing plate 101, and a glass substrate 103 on the reflective sheet 102 (same as the TFT glass substrate 201 in the liquid crystal display panel 2). a component) and a backlight 105 provided on a side surface of the glass substrate 103.
  • the glass substrate 103 is provided with an optical dot structure layer 104 on one surface of the reflection sheet 102, and the other surface of the glass substrate 103 is a light-emitting surface (provided with an FTF array).
  • the first polarizer 106 is further disposed between the backlight 105 and the glass substrate 103. In this embodiment, the first polarizer 106 is directly attached to the side surface of the glass substrate 103 and is closely coupled to the glass substrate 103.
  • the optical dot structure layer 104 is formed on the glass substrate 103 by a printing process or an etching process.
  • the optical dot is a fine structure that can change the light propagation path, and the individual shape of the dot is not limited, as long as the processing convenience is satisfied.
  • the distribution of dot distribution can be adjusted according to the brightness and uniformity of the product display.
  • the brightness of the dense dot area is higher, and the brightness of the dot area is slightly lower.
  • the backlight 105 is composed of a plurality of light emitting diodes. The light emitted by the backlight 105 passes through the first polarizer 106 to form polarized light into the glass substrate 103, and passes through the optical dot structure layer 104 and the reflective sheet 102 to form a uniform surface light source perpendicular to the display surface.
  • FIG. 3 is a schematic structural diagram of a backlight module and a liquid crystal display according to an embodiment of the present invention. As shown in FIG. 3, the difference from Embodiment 1 is that the first polarizer 106 in this embodiment is fixed by a fastener 107 at a position spaced apart from the side surface of the glass substrate 103. This position may be any of the glass substrate 103 and the backlight 105.
  • the first polarizer 106 is disposed at a distance from the side of the glass substrate 103 for convenience of fixation and stability.
  • the structure of the liquid crystal display 2 of the liquid crystal display and other structures in the backlight module 1 are the same as those in the first embodiment.
  • Example 3 FIG. 4 is a schematic structural diagram of a backlight module and a liquid crystal display according to an embodiment of the present invention. As shown in FIG. 4, the difference from Embodiment 2 is that an optical film group 108 is further disposed between the first polarizer 106 and the backlight 105 in this embodiment (in another embodiment, the optical film The group 108 may also be disposed between the first polarizer 106 and the glass substrate 103).
  • the optical film set 108 may be selected from one or more arbitrary combinations of a diffusion sheet, a prism sheet, and an anti-reflection film.
  • the structure of the liquid crystal display 2 of the liquid crystal display and other structures in the backlight module 1 are the same as those in the second embodiment.
  • the optical film group 108 between the first polarizer 106 and the backlight 105 the quality of the light emitted by the backlight 105 is improved, and the backlight efficiency of the entire backlight module is improved.
  • the area of the optical film set used in the present embodiment is much smaller than that of the optical film set used in the prior art, which reduces the cost of the product.
  • the backlight module and the liquid crystal display provided by the present invention do not use a light guide plate, and even in some embodiments, the optical film set can be omitted, which reduces the cost of the product; Under the premise of the effect, the optical path of the light transmitted in the light guide plate and the optical film group is reduced, the effect of improving the utilization rate of the light source is improved, and the quality of the product is improved; in addition, the backlight module is reduced as described above.
  • the structural components can achieve the effect of reducing the thickness of the entire liquid crystal module. It should be noted that, in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities or operations.

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

Abstract

一种背光模组（1），包括：一背板（101）；一反射片（102），位于背板（101）上；一玻璃基板（103），位于反射片（102）上；玻璃基板（103）朝向反射片（102）的一面设置有一光学网点结构层（104），玻璃基板（103）的另一面为出光面；一背光源（105），设置于玻璃基板（103）的一侧面；其中背光源（105）与玻璃基板（103）之间还设置有第一偏光片（106），背光源（105）发出的光经过第一偏光片（106）后形成偏振光进入玻璃基板（103），由光学网点结构层（104）反射后从出光面传导出去。该背光模组（1）不使用导光板，降低了产品的成本；该背光模组（1）还可以提高光源的利用率，提升了产品的质量。还提供了一种包含如上背光模组（1）的液晶显示器。

Description

背光模組以及液晶显示器 术领域 本发明涉及液晶显示器技术领域， 尤其涉及一种背光模组以及包含该背光 模组的液晶显示器。 说 背景 术 液晶显示器， 或称 LCD ( Liquid Crysta书l Display ) , 为平面超薄的显示设 备， 它由一定数量的彩色或黑白像素组成， 放置于光源或者反射板前方。 液晶 显示器功耗很低， 并且具有高画质、 体积小、 重量轻的特点， 因此倍受大家青 睐， 成为显示器的主流。
液晶显示器包括液晶显示屏及背光模组， 液晶显示屏与背光模组相对设置， 由背光模组提供显示光源给液晶显示屏， 以使液晶显示屏显示影像。 液晶显示 屏主要是由两片透明基板以及被封于基板之间的液晶构成。 目前液晶显示器是 以薄膜晶体管 （Thin Fi lm Transistor, TFT ) 液晶显示屏为主， 而背光模组按 照光源的位置主要分为直下式和侧入式两种方式。 图 1是现有的一种背光模组 及液晶显示器的结构示意图， 如图 1所示， 该背光模组主要包括依次叠层设置 的背板、 反射片、 导光板以及光学膜片组， 背光源设置于导光板的侧面。 背光 源发出光线， 经由导光板、 光学膜片组将光线改变方向及尽可能的均匀化， 在 光学膜片组的上方传导发出， 提供给液晶显示屏。
如图 1所示的背光模组， 采用了导光板以及相应较大面积的光学膜片， 导光 板和光学膜片的价格高昂， 并且其材料容易出现损伤及涨缩变形等缺陷， 从而 造成液晶模组的显示不良； 另外， 光线在导光板和光学膜片组中传输时， 会发 生衰减， 从而降低了液晶显示器对光的利用效率， 因此， 在达到提供背光效果 的前提下， 应当考虑尽量减少光线在导光板和光学膜片组中传输的光程。 发明内容 为了解决上述现有技术所存在的问题， 本发明提供了一种背光模组， 该背 光模组不使用导光板， 降低了产品的成本； 该背光模组还可以提高光源的利用 率， 提升了产品的质量。 为了实现上述目的， 本发明采用了如下的技术方案： 一种光学模组， 包括： 一背板； 一反射片， 位于所述背板上； 一玻璃基板， 位于所述反射片上； 所述玻璃基板朝向所述反射片的一面设 置有一光学网点结构层， 所述玻璃基板的另一面为出光面； 一背光源， 设置于所述玻璃基板的一侧面； 其中所述背光源与所述玻璃基 板之间还设置有第一偏光片， 背光源发出的光经过所述第一偏光片后形成偏振 光进入所述玻璃基板， 由所述光学网点结构层反射后从所述出光面传导出去。 其中， 所述第一偏光片粘贴于所述玻璃基板的侧面。 其中， 所述第一偏光片由一紧固件固定于与所述玻璃基板的侧面具有一距 离的位置。 其中， 所述光学网点结构层是通过印刷工艺或刻蚀工艺形成于所述玻璃基 板。 其中， 所述第一偏光片与所述背光源之间还设置有一光学膜片组。 其中， 所述第一偏光片与所述玻璃基板之间还设置有一光学膜片组。 其中， 所述光学膜片组选自扩散片、 棱镜片以及增透膜的一种或多种任意 组合。 其中， 所述背光源包括多个发光二极管。 本发明的另一方面是提供一种液晶显示器， 包括液晶显示屏以及背光模组， 其中所述液晶显示屏至少包括依次叠层设置的 TFT玻璃基板、液晶层、 CF玻璃 基板以及第二偏光片， 所述背光模组为如上所述的背光模组， 其中， 背光模组 中的玻璃基板即为所述液晶显示屏中的 TFT玻璃基板， 所述玻璃基板的出光面 上设置有 TFT阵列。 有益效果： 本发明提供的背光模组不使用导光板， 甚至在一些实施例中还可以不使用 光学膜片组， 降低了产品的成本； 并且在达到提供背光效果的前提下， 减少了 光线在导光板和光学膜片组中传输的光程， 达到提高光源的利用率的效果， 提 升了产品的质量； 另外， 该背光模组减少了如前所述的结构部件， 可以到达减 小整个液晶模组的厚度的效果。 附图说明 图 1是现有的一种背光模组及液晶显示器的结构示意图。 图 2是本发明实施例 1提供的背光模组及液晶显示器的结构示意图。 图 3是本发明实施例 2提供的背光模组及液晶显示器的结构示意图。 图 4是本发明实施例 3提供的背光模组及液晶显示器的结构示意图。 具体实施方式 如前所述， 本发明针对现有技术存在的缺陷， 提供了一种光学模组， 包括: 一背板； 一反射片， 位于所述背板上； 一玻璃基板， 位于所述反射片上； 所述 玻璃基板朝向所述反射片的一面设置有一光学网点结构层， 所述玻璃基板的另 一面为出光面； 一背光源， 设置于所述玻璃基板的一侧面； 其中所述背光源与 所述玻璃基板之间还设置有第一偏光片， 背光源发出的光经过所述第一偏光片 后形成偏振光进入所述玻璃基板， 由所述光学网点结构层反射后从所述出光面 传导出去。 本发明的还提供了包含如上所述背光模组的液晶显示器， 该液晶显示器包 括液晶显示屏以及背光模组，其中所述液晶显示屏至少包括依次叠层设置的 TFT (Thin Fi lm Transistor, 薄膜晶体管）玻璃基板、液晶层、 CF (Color Fi lter , 彩色滤光片） 玻璃基板以及第二偏光片， 其中， 背光模组中的玻璃基板和液晶 显示屏中的 TFT玻璃基板是一体的， SP， 在同一玻璃基板的一面上设置有背光 模组需要的光学网点， 在另一面 （出光面） 上设置有 TFT阵列。 如上所述的背光模组以及液晶显示器， 背光模组不使用导光板， 甚至在一 些实施例中还可以不使用光学膜片组， 降低了产品的成本； 并且在达到提供背 光效果的前提下， 减少了光线在导光板和光学膜片组中传输的光程， 达到提高 光源的利用率的效果， 提升了产品的质量； 另外， 该背光模组减少了如前所述 的结构部件， 可以到达减小整个液晶模组的厚度的效果。 为了更好地阐述本发明的技术特点和结构， 以下结合实施例及其附图进行 详细描述。 实施例 1 图 2为本实施例提供的背光模组以及液晶显示器的结构示意图。 如图 2所 示， 该液晶显示器包括液晶显示屏 2以及背光模组 1， 其中所述液晶显示屏 2至 少包括依次叠层设置的 TFT玻璃基板 201、 液晶层 202、 CF玻璃基板 203以及 第二偏光片 204; 光学模组 1包括背板 101、位于所述背板 101上的反射片 102、 位于所述反射片 102上的玻璃基板 103 (与液晶显示屏 2中的 TFT玻璃基板 201 为同一部件） 以及设置于所述玻璃基板 103的侧面的背光源 105。 其中， 所述玻 璃基板 103朝向所述反射片 102的一面设置有光学网点结构层 104，所述玻璃基 板 103的另一面为出光面（设置有 FTF阵列）。所述背光源 105与所述玻璃基板 103之间还设置有第一偏光片 106， 本实施例中， 第一偏光片 106直接粘贴于所 述玻璃基板 103的侧面， 与玻璃基板 103紧密结合。 其中， 所述光学网点结构层 104是通过印刷工艺或刻蚀工艺形成于所述玻 璃基板 103。该光学网点为可改变光线传播路径的微细结构，网点个体形状不限， 只要满足加工便利即可。 网点分布状况可根据产品显示的亮度及均匀性的需要 做疏密调整， 网点密集的区域亮度较高， 网点稀疏的区域亮度略低。 本实施例中， 所述背光源 105由多个发光二极管组成。 背光源 105发出的光经过第一偏光片 106后形成偏振光进入所述玻璃基板 103， 经过所述光学网点结构层 104以及反射片 102的作用， 形成垂直于显示面 的均匀面光源， 从玻璃基板 103出光面传导出去， 通过 TFT玻璃基板 201与 CF 玻璃基板 203之间的液晶层 202时， 光的极性因为液晶的偏转而发生改变， 从 而可以再次穿过第二偏光片 204， 达成显示的功能。 实施例 2 图 3为本实施例提供的背光模组以及液晶显示器的结构示意图。 如图 3所 示， 与实施例 1不同之处在于， 本实施例中的第一偏光片 106由一紧固件 107 固定于与所述玻璃基板 103的侧面具有一距离的位置。 该位置只要处于玻璃基 板 103与背光源 105即可。 将第一偏光片 106设置于距离玻璃基板 103侧面有 一定距离处是为了便于固定且稳固性较好。 该液晶显示器的液晶显示屏 2的结 构以及背光模组 1中的其他结构与实施例 1中的相同。 实施例 3 图 4为本实施例提供的背光模组以及液晶显示器的结构示意图。 如图 4所 示， 与实施例 2不同之处在于， 本实施例中的第一偏光片 106与背光源 105之 间还设置有一光学膜片组 108 (在另外的实施例中， 光学膜片组 108也可以是设 置在第一偏光片 106与玻璃基板 103之间）。 其中， 光学膜片组 108可以选自扩 散片、棱镜片以及增透膜的一种或多种任意组合。该液晶显示器的液晶显示屏 2 的结构以及背光模组 1中的其他结构与实施例 2中的相同。 本实施例通过在第一偏光片 106与背光源 105之间设置有光学膜片组 108， 改善了背光源 105发出的光的质量， 提高了整个背光模组的背光效率。 但是， 与现有技术中所使用的光学膜片组相比， 本实施例中使用的光学膜片组的面积 大大较小， 降低了产品的成本。 综上所述， 本发明提供的背光模组以及液晶显示器， 背光模组不使用导光 板， 甚至在一些实施例中还可以不使用光学膜片组， 降低了产品的成本； 并且 在达到提供背光效果的前提下， 减少了光线在导光板和光学膜片组中传输的光 程， 达到提高光源的利用率的效果， 提升了产品的质量； 另外， 该背光模组减 少了如前所述的结构部件， 可以到达减小整个液晶模组的厚度的效果。 需要说明的是， 在本文中， 诸如第一和第二等之类的关系术语仅仅用来将 一个实体或者操作与另一个实体或操作区分开来， 而不一定要求或者暗示这些 实体或操作之间存在任何这种实际的关系或者顺序。 而且， 术语 "包括"、 "包 含"或者其任何其他变体意在涵盖非排他性的包含， 从而使得包括一系列要素 的过程、 方法、 物品或者设备不仅包括那些要素， 而且还包括没有明确列出的 其他要素， 或者是还包括为这种过程、 方法、 物品或者设备所固有的要素。 在 没有更多限制的情况下， 由语句 "包括一个…… " 限定的要素， 并不排除在包 括所述要素的过程、 方法、 物品或者设备中还存在另外的相同要素。
显然， 本发明的保护范围并不局限于上诉的具体实施方式， 本领域的技术 人员可以对发明进行各种改动和变型而不脱离本发明的精神和范围。 这样， 倘 若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内， 则 本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求 书
1、 一种背光模组， 其中， 包括： 一背板； 一反射片， 位于所述背板上； 一玻璃基板， 位于所述反射片上； 所述玻璃基板朝向所述反射片的一面设 置有一光学网点结构层， 所述玻璃基板的另一面为出光面； 一背光源， 设置于所述玻璃基板的一侧面； 其中所述背光源与所述玻璃基 板之间还设置有第一偏光片， 背光源发出的光经过所述第一偏光片后形成偏振 光进入所述玻璃基板， 由所述光学网点结构层反射后从所述出光面传导出去。
2、 根据权利要求 1所述的背光模组， 其中， 所述第一偏光片粘贴于所述玻 璃基板的侧面。
3、 根据权利要求 1所述的背光模组， 其中， 所述第一偏光片由一紧固件固 定于与所述玻璃基板的侧面具有一距离的位置。
4、 根据权利要求 1所述的背光模组， 其中， 所述光学网点结构层是通过印 刷工艺或刻蚀工艺形成于所述玻璃基板。
5、 根据权利要求 1所述的背光模组， 其中， 所述第一偏光片与所述背光源 之间还设置有一光学膜片组。
6、 根据权利要求 5所述的背光模组， 其中， 所述光学膜片组选自扩散片、 棱镜片以及增透膜的一种或多种任意组合。
7、 根据权利要求 1所述的背光模组， 其中， 所述第一偏光片与所述玻璃基 板之间还设置有一光学膜片组。
8、 根据权利要求 7所述的背光模组， 其中， 所述光学膜片组选自扩散片、 棱镜片以及增透膜的一种或多种任意组合。
9、 根据权利要求 1所述的背光模组， 其中， 所述背光源包括多个发光二极 管。
10、 一种液晶显示器， 包括液晶显示屏以及背光模组， 其中所述液晶显示 屏至少包括依次叠层设置的 TFT玻璃基板、液晶层、 CF玻璃基板以及第二偏光 片， 其中， 所述背光模组包括： 一背板； 一反射片， 位于所述背板上； 一玻璃基板， 位于所述反射片上； 所述玻璃基板朝向所述反射片的一面设 置有一光学网点结构层， 所述玻璃基板的另一面为出光面； 一背光源， 设置于所述玻璃基板的一侧面； 其中所述背光源与所述玻璃基 板之间还设置有第一偏光片， 背光源发出的光经过所述第一偏光片后形成偏振 光进入所述玻璃基板， 由所述光学网点结构层反射后从所述出光面传导出去； 其中，所述背光模组中的玻璃基板即为所述液晶显示屏中的 TFT玻璃基板， 所述玻璃基板的出光面上设置有 TFT阵列。
11、 根据权利要求 10所述的液晶显示器， 其中， 所述第一偏光片粘贴于所 述玻璃基板的侧面。
12、 根据权利要求 10所述的液晶显示器， 其中， 所述第一偏光片由一紧固 件固定于与所述玻璃基板的侧面具有一距离的位置。
13、 根据权利要求 10所述的液晶显示器， 其中， 所述光学网点结构层是通 过印刷工艺或刻蚀工艺形成于所述玻璃基板。
14、 根据权利要求 10所述的液晶显示器， 其中， 所述第一偏光片与所述背 光源之间还设置有一光学膜片组。
15、 根据权利要求 14所述的液晶显示器， 其中， 所述光学膜片组选自扩散 片、 棱镜片以及增透膜的一种或多种任意组合。
16、 根据权利要求 10所述的液晶显示器， 其中， 所述第一偏光片与所述玻 璃基板之间还设置有一光学膜片组。
17、 根据权利要求 16所述的液晶显示器， 其中， 所述光学膜片组选自扩散 片、 棱镜片以及增透膜的一种或多种任意组合。
18、 根据权利要求 10所述的液晶显示器， 其中， 所述背光源包括多个发光 二极管。
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