WO2017015994A1 - 一种背光模块 - Google Patents
一种背光模块 Download PDFInfo
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- WO2017015994A1 WO2017015994A1 PCT/CN2015/086935 CN2015086935W WO2017015994A1 WO 2017015994 A1 WO2017015994 A1 WO 2017015994A1 CN 2015086935 W CN2015086935 W CN 2015086935W WO 2017015994 A1 WO2017015994 A1 WO 2017015994A1
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- 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
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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
- G02B6/0075—Arrangements of multiple light guides
- G02B6/0078—Side-by-side arrangements, e.g. for large area displays
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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
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
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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
- G02B6/0033—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
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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
- G02B6/0033—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
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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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
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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
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- 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
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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
- G02B6/0075—Arrangements of multiple light guides
- G02B6/0078—Side-by-side arrangements, e.g. for large area displays
- G02B6/008—Side-by-side arrangements, e.g. for large area displays of the partially overlapping type
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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
- G02B6/009—Positioning aspects of the light source in the package
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- 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
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- 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
- G02F1/133613—Direct backlight characterized by the sequence of light sources
Definitions
- first wedge body extends upward from a side end of the third wedge body to form a first U-shaped cavity opening toward the second wedge body.
- the first light guide plate has a reflective element away from a side end of the first light source unit.
- the normal direction of the long inclined surface 121 of the first wedge body 12 is The normal direction with the long inclined surface 131 of the second wedge body 13 is axisymmetric with respect to the normal direction of the flat plate 11.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
一种背光模块(1),包括:背板(10),包括平板(11)、分别在平板(11)两端的第一楔形体(12)和第二楔形体(13)、以及在平板(11)上且位于第一楔形体(12)和第二楔形体(13)之间的多个第三楔形体(14);第一楔形体(12)的长斜面(121)、第二楔形体(13)的长斜面(131)及所述第三楔形体(14)的倾斜面(141)分别与平板(11)的夹角为钝角、锐角及锐角;第一光源组件(20),其设置在第一楔形体(12)上;第二光源组件(30),其设置在第二楔形体(13)上;多个第三光源组件(40),其中,每个第三光源组件(40)设置在对应的第三楔形体(14)上。
Description
本发明属于液晶显示技术领域,具体地讲,涉及一种用于液晶显示器中的背光模块。
在传统的薄膜晶体管液晶显示器(TFT-LCD)中,由于TFT-LCD的液晶面板本身并不发光,需要借助外加光源才能进行显示,通常这样的光源有背光式光源和反射式光源两种,由于背光式光源无需受环境变化,所以目前的TFT-LCD中的光源几乎都为背光式光源。
在TFT-LCD中,光源类型经历了从CCFL到LED两种光源。由于LED具有体积小,响应时间快,寿命长,不易碎,色域高,封装体种类多等优点,目前已成为TFT-LCD中光源的主流。
在LED背光模块中,目前基本可以分为侧入式LED背光模块和直下式LED背光模块。其中,侧入式LED背光模块具有功耗小,厚度薄等优点,但由于其需要使用导光板,因此重量重,成本较高。而直下式LED背光模块使用的光源数量少,无导光板,成本低,但是其灯箱较高,从而在外观上较厚。
量子点(Quantum Dot,简称QD)荧光粉由于发光光谱FWHM(半波峰宽)较窄(仅20~40nm),颜色色纯度极高,所以其是目前荧光粉中可实现最高色彩饱和度的荧光粉。但是,由于QD荧光粉采用化学溶液方式合成,在硅胶中较难分散均匀,且怕水怕氧,发光方面温度淬灭严重,所以如果将QD荧光粉直接封装在LED中,会导致LED亮度低,耐性差,而且目前较难实现批量生产。
目前QD荧光粉可以量产应用的方法皆为采用远程荧光粉方案,其一是采用夹层结构,即将QD荧光粉封装在如光学膜片中,使用时和其他光学膜片搭配使用;其二是将QD荧光粉封装在如玻璃管中形成量子管(QD tube),使用
时将量子管放在LED前面,利用支撑装置固定量子管即可。
但是,目前由于封装有QD荧光粉的光学膜片受到机台限制,无法做到超大尺寸(例如,100inch以上),从而限制其在超大尺寸上的应用。而量子管仅能用于侧入式背光模块中,并且量子管极易破碎,可靠性不高。
因此,在目前的超大尺寸液晶显示器中,由于尺寸大,液晶面板穿透率低,亮度要求高(至少1000nits),色域要求高(92%以上),所以采用目前常规的设计手段很难实现量子点技术(QD技术)在超大尺寸液晶显示器上的应用。
发明内容
为了解决上述现有技术存在的问题,本发明的目的在于提供一种背光模块,其包括:背板,其包括平板、分别形成在平板两端的第一楔形体和第二楔形体、以及形成在平板上且位于第一楔形体和第二楔形体之间的多个第三楔形体,其中,第一楔形体和第二楔形体的高度均大于第三楔形体的高度;第一光源组件,其设置在第一楔形体上;第二光源组件,其设置在第二楔形体上;多个第三光源组件,其中,每个第三光源组件设置在对应的第三楔形体上。
进一步地,所述第一楔形体邻近第三楔形体的侧端及所述第三楔形体的厚侧端均内凹形成凹槽。
进一步地,所述第三光源组件包括:第三光源单元、第三导光板;其中,第三光源单元设置在对应的凹槽内,第三导光板设置在与所述第三光源单元邻近的第三楔形体上。
进一步地,所述第三导光板远离所述第三光源单元的侧端具有反射元件。
进一步地,所述第三导光板通过螺钉被锁附固定在所述第三楔形体上。
进一步地,所述第三导光板上设置有支撑柱。
进一步地,所述第一楔形体远离第三楔形体的侧端向上延伸形成开口朝向所述第二楔形体的第一U型腔体。
进一步地,所述第一光源组件包括:第一光源单元、第一导光板;其中,第一光源单元设置在所述第一U型腔体中,第一导光板设置在第一楔形体上。
进一步地,所述第一导光板远离所述第一光源单元的侧端具有反射元件。
进一步地,所述第一导光板通过螺钉被锁附固定在所述第一楔形体上。
进一步地,所述第一导光板上设置有支撑柱。
进一步地,所述第二楔形体远离第三楔形体的侧端向上延伸形成开口朝向所述第一楔形体的第二U型腔体。
进一步地,所述第二光源组件包括:两个第二光源单元、两个第二导光板;其中,两个第二光源单元之一设置在所述第二U型腔体中,两个第二光源单元之另一设置在与所述第二楔形体邻近的凹槽中,两个第二导光板对接设置在第二楔形体上。
进一步地,所述第二导光板通过螺钉被锁附固定在所述第二楔形体上。
进一步地,所述两个第二导光板中的一个上设置有支撑柱。
本发明的有益效果:本发明的背光模块,可将量子点技术(即QD技术)应用于超大尺寸(例如,100inch以上)的液晶显示器中。
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侧视示意图。
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,为了清楚器件,夸大了层和区域的厚度。相同的标号在整个说明书和附图中可用来表示相同的元件。
将理解的是,尽管在这里可使用术语“第一”、“第二”、“第三”等来描述各种元件,但是这些元件不应受这些术语的限制。这些术语仅用于将一个元件与另一个元件区分开来。
图1是根据本发明的实施例的背光模块的侧视示意图。
参照图1,根据本发明的实施例的背光模块包括:背板10、第一光源组件20、第二光源组件30、多个第三光源组件40、扩散板50、若干光学膜片60;其中,背板10包括平板11,分别形成在平板11两端的第一楔形体12和第二楔形体13,以及形成在平板11上且位于第一楔形体12和第二楔形体13之间的多个第三楔形体14;第一光源组件20设置在第一楔形体12上;第二光源组件30设置在第二楔形体13上;每个第三光源组件40设置在对应的第三楔形体14上;扩散板50设置在第一楔形体12和第二楔形体13上;若干光学膜片60依次设置在扩散板50上。
应当说明的是,根据本发明的实施例的背光模块1还可包括其他合适类型的组成元器件,例如胶框等。
在本实施例中,第一楔形体12邻近于最左侧的第三楔形体14。这里,进一步地,第一楔形体12远离最左侧的第三楔形体14的侧端向上延伸形成开口朝向第二楔形体13(即开口朝向右侧)的第一U型腔体15。更进一步地,第一楔形体12邻近最左侧的第三楔形体14的侧端内凹形成凹槽16。第一U型腔体15的功能作用将在下面体现。
第二楔形体13邻近于最右侧的第三楔形体14。这里,进一步地,第二楔形体13远离最左侧的第三楔形体14的侧端向上延伸形成开口朝向第一楔形体12(即开口朝向左侧)的第二U型腔体17。第二U型腔体17的功能作用将在下面体现。
在本实施例,第三楔形体14整体呈直角梯形,其倾斜面141与平板11的夹角为锐角,其不超过10度,但本发明并不限制于此。进一步地,第三楔形体14的垂直面142(即第三楔形体14的厚侧端)内凹形成凹槽16。凹槽16的功能作用将在下面体现。
此外,在本实施例中,第一楔形体12的长斜面121与平板11的夹角为钝角,第二楔形体13的长斜面131与平板11的夹角为锐角,其中,第一楔形体12的长斜面121与平板11的夹角与第二楔形体13的长斜面131与平板11的夹角互补,并且第二楔形体13的长斜面131与平板11的夹角大于第三楔形体14的倾斜面141与平板11的夹角,这样可使第一楔形体12和第二楔形体13的高度均大于第三楔形体14的高度,但本发明并不限制于此。例如,第二楔形体13的长斜面131与平板11的夹角与第三楔形体14的倾斜面141与平板11的夹角相等,但需通过其他合适的方式使第一楔形体12和第二楔形体13的高度都大于第三楔形体14的高度。
此外,由于第一楔形体12的长斜面121与平板11的夹角与第二楔形体13的长斜面131与平板11的夹角互补,所以第一楔形体12的长斜面121的法线方向与第二楔形体13的长斜面131的法线方向以平板11的法线方向轴对称。
继续参照图1,第一光源组件20包括:第一光源单元21、第一导光板22;其中,第一光源单元21设置在上述第一U型腔体15中,第一导光板22设置在第一楔形体12的长斜面121上,以使第一光源单元21邻近于第一导光板22的一侧端。
进一步地,第一导光板22的另一侧端(即第一导光板2远离第一光源单元21的侧端)具有反射元件18。在本实施例中,第一光源单元21可包括LED及邻近LED(即设置于LED与第一导光板22的一侧端之间)的量子点玻璃管,但本发明并不限制于此,例如,第一光源单元21也可以只是LED。
更进一步地,第一导光板22通过螺钉19被锁附固定在第一楔形体12的长斜面121上,但本发明并不限制于此,例如也可通过其他合适类型的固定方式将第一导光板22固定在第一楔形体12的长斜面121上。此外,再进一步地,第一导光板22上设置有支撑柱70。支撑柱70的功能作用将在下面体现。
继续参照图1,第二光源组件30包括:两个第二光源单元31、两个第二导光板32;其中,两个第二光源单元31之一设置在上述第二U型腔体17中,两个第二光源单元31之另一设置在最右侧的第三楔形体14的凹槽16(即邻近第二楔形体13的凹槽16)中,两个第二导光板32对接设置在第二楔形体13的长斜面131上,以使两个第二光源单元31分别邻近第二导光板32的两侧端。
在本发明的其他实施方式中,也可采用长度是第二导光板32的长度两倍的导光板取代上述两个第二导光板32。
此外,邻近两个第二光源单元31之另一的第二导光板32的朝向第二光源单元31的侧端可设置在最右侧的第三楔形体14的凹槽16中,并且所述朝向第二光源单元31的侧端邻近于两个第二光源单元31之另一。
在本实施例中,第二光源单元31可包括LED及邻近LED(即设置于LED与第二导光板32的一侧端之间)的量子点玻璃管,但本发明并不限制于此,例如,第二光源单元31也可以只是LED。
更进一步地,每个第二导光板32通过一个螺钉19被锁附固定在第二楔形体13的长斜面131上,但本发明并不限制于此,例如也可通过其他合适类型的固定方式将第二导光板32固定在第二楔形体13的长斜面131上。此外,再进一步地,两个第二导光板32中的一个上设置有支撑柱70。支撑柱70的功能作用将在下面体现。
继续参照图1,每一第三光源单元40包括:第三光源单元41、第三导光板42;其中,第三光源单元41设置在对应的凹槽16(这里,所述对应的凹槽16指的是除邻近第二楔形体13的凹槽16之外的任一凹槽16),第三导光板42设置在与第三光源单元41邻近的第三楔形体14的倾斜面141上,以使第三光源单元41邻近于第三导光板42的一侧端。在本实施例中,第三导光板42的长度可大于第三楔形体14的倾斜面141的长度,但本发明并不限制于此。此外,第三导光板42的一侧端也可以设置于对应的凹槽16中且邻近于第三光源单元41,但本发明并不限制于此。
进一步地,第三导光板42的另一侧端(即第三导光板42远离第三光源单元41的侧端)具有反射元件18。在本实施例中,第三光源单元41可包括LED及邻近LED(即设置于LED与第三光源单元41的一侧端之间)的量子点玻璃管,但本发明并不限制于此,例如,第三光源单元41也可以只是LED。
更进一步地,第三导光板42通过螺钉19被锁附固定在第三楔形体14的倾斜面141上,但本发明并不限制于此,例如也可通过其他合适类型的固定方式将第三导光板42固定在第三楔形体14的倾斜面141上。此外,再进一步地,
第三导光板42上设置有支撑柱70。支撑柱70的功能作用将在下面体现。
继续参照图1,扩散板50设置在第一U型腔体15和第二U型腔体17上。在扩散板50设置在第一U型腔体15和第二U型腔体17上之后,支撑柱70用以支撑扩散板50,同时保证各导光板与扩散板50之间具有适当的混光距离。
此外,在本实施例中,反射元件18可例如是反射膜层,诸如具有高反射的金属膜层或者具有高反射的介质膜层,本发明并不作具体限定。
综上所述,根据本发明的实施例的背光模块,可将量子点技术(即QD技术)应用于超大尺寸(例如,100inch以上)的液晶显示器中。
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 (12)
- 一种背光模块,其中,包括:背板,其包括平板、分别形成在平板两端的第一楔形体和第二楔形体、以及形成在平板上且位于第一楔形体和第二楔形体之间的多个第三楔形体;其中,第一楔形体的长斜面与平板的夹角为钝角,第二楔形体的长斜面与平板的夹角为锐角,所述第三楔形体的倾斜面与平板的夹角为锐角;第一光源组件,其设置在第一楔形体上;第二光源组件,其设置在第二楔形体上;多个第三光源组件,其中,每个第三光源组件设置在对应的第三楔形体上。
- 根据权利要求1所述的背光模块,其中,所述第一楔形体邻近第三楔形体的侧端及所述第三楔形体的厚侧端均内凹形成凹槽;所述第三光源组件包括:第三光源单元、第三导光板;其中,第三光源单元设置在对应的凹槽内,第三导光板设置在与所述第三光源单元邻近的第三楔形体上。
- 根据权利要求2所述的背光模块,其中,所述第三导光板远离所述第三光源单元的侧端具有反射元件。
- 根据权利要求2所述的背光模块,其中,所述第三导光板通过螺钉被锁附固定在所述第三楔形体上。
- 根据权利要求1所述的背光模块,其中,所述第一楔形体远离第三楔形体的侧端向上延伸形成开口朝向所述第二楔形体的第一U型腔体;所述第一光源组件包括:第一光源单元、第一导光板;其中,第一光源单元设置在所述第一U型腔体中,第一导光板设置在第一楔形体上。
- 根据权利要求5所述的背光模块,其中,所述第一导光板远离所述第 一光源单元的侧端具有反射元件。
- 根据权利要求5所述的背光模块,其中,所述第一导光板通过螺钉被锁附固定在所述第一楔形体上。
- 根据权利要求1所述的背光模块,其中,所述第二楔形体远离第三楔形体的侧端向上延伸形成开口朝向所述第一楔形体的第二U型腔体;所述第二光源组件包括:两个第二光源单元、两个第二导光板;其中,两个第二光源单元之一设置在所述第二U型腔体中,两个第二光源单元之另一设置在与所述第二楔形体邻近的凹槽中,两个第二导光板对接设置在第二楔形体上。
- 根据权利要求8所述的背光模块,其中,所述第二导光板通过螺钉被锁附固定在所述第二楔形体上。
- 根据权利要求2所述的背光模块,其中,在所述第三导光板上设置有支撑柱。
- 根据权利要求5所述的背光模块,其中,在所述第一导光板上设置有支撑柱。
- 根据权利要求8所述的背光模块,其中,在所述两个第二导光板中的一个上设置有支撑柱。
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| CN109491140B (zh) * | 2018-11-30 | 2021-06-08 | 海信视像科技股份有限公司 | 一种显示装置 |
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| CN105093675A (zh) | 2015-11-25 |
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