CN107238886A - 一种玻璃导光板及其制作方法 - Google Patents

一种玻璃导光板及其制作方法 Download PDF

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CN107238886A
CN107238886A CN201710549436.XA CN201710549436A CN107238886A CN 107238886 A CN107238886 A CN 107238886A CN 201710549436 A CN201710549436 A CN 201710549436A CN 107238886 A CN107238886 A CN 107238886A
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glass
light guide
guide plate
coated
optics site
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王晓
张子宾
张健
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Qingdao Guoqi Photoelectric Technology Co., Ltd
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QINGDAO QIJI PHOTOELECTRIC TECHNOLOGY CO LTD
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0033Means for improving the coupling-out of light from the light guide
    • G02B6/005Means 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
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0033Means for improving the coupling-out of light from the light guide
    • G02B6/0035Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/004Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0033Means for improving the coupling-out of light from the light guide
    • G02B6/005Means 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
    • G02B6/0051Diffusing sheet or layer
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0065Manufacturing aspects; Material aspects
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133606Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133606Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607Direct 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
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133614Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light

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  • Crystallography & Structural Chemistry (AREA)
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Abstract

本发明涉及一种玻璃导光板及其制作方法。其包括上玻璃和下玻璃,所述上玻璃的下表面和下玻璃的上表面相贴合,且上玻璃的下表面通过真空蒸镀的方式涂覆有均匀的量子点;所述上玻璃的上表面涂覆有用于将光线扩散雾化的扩散层,所述下玻璃的下表面设有用于将线光源转化为面光源的光学网点层。该玻璃导光板广泛应用于蓝光LED灯的侧光式背光模组中,替代传统的PMMA或MS材质导光板,代替量子膜,取消铝背板,使TV模组向超薄化,超高清化发展;同时保留了导光板的性质,在优化宏观色彩饱和度的前提下,又可以进行光学网点设计,优化画面的均匀性,在超薄化和超高色域的TV模组中具有重要意义。

Description

一种玻璃导光板及其制作方法
技术领域
本发明涉及一种玻璃导光板及其制作方法。
背景技术
传统液晶电视使用的是亚克力导光板,厚度一般为2-4mm,再加上铝背板等,整体厚度会超过1cm,这使得设计者很难再减少电视机厚度;但最新的结构是采用玻璃导光板,用紫外固化压敏胶把玻璃导光板和反射片粘接在一起,就构成导光板组件,这种组件的光学性能和机械性能,整体要优于传统的亚克力导光板组件;由于玻璃本身的高机械性能,可以取消铝背板的使用,使液晶电视变得更薄,最薄可以小于5mm,减少电视机70%的厚度和30%的重量。在现有液晶显示器上,随着色彩鲜明度要求越来越高,一般会采用量子膜的架构方式来改善色彩质量和提高能效。目前的量子膜为上下两张PET,中间均匀涂覆的量子点压合而成,现有液晶显示器组装工艺复杂,价格高昂,裁切利用率低。
发明内容
本发明旨在解决上述问题,提供了一种玻璃导光板及其制作方法,该玻璃导光板广泛应用于蓝光LED灯的侧光式背光模组中,替代传统的PMMA或MS材质导光板,代替量子膜,取消铝背板,使TV模组向超薄化,超高清化发展;同时保留了导光板的性质,在优化宏观色彩饱和度的前提下,又可以进行光学网点设计,优化画面的均匀性,在超薄化和超高色域的TV模组中具有重要意义;其采用的技术方案如下:
一种玻璃导光板,包括上玻璃和下玻璃,所述上玻璃的下表面和下玻璃的上表面相贴合,且上玻璃的下表面通过真空蒸镀的方式涂覆有均匀的量子点;所述上玻璃的上表面涂覆有用于将光线扩散雾化的扩散层,所述下玻璃的下表面设有用于将线光源转化为面光源的光学网点层。所述下玻璃厚度为0.5mm-2mm,所述上玻璃厚度为0.3mm-1mm。
在上述技术方案的基础上,所述上玻璃和下玻璃之间通过玻璃胶粘合。
在上述技术方案的基础上,所述扩散层采用扩散剂制成,扩散剂的主要成分为丙烯酸树脂,其采用辊涂的方式均匀涂覆在上玻璃的上表面。
在上述技术方案的基础上,所述光学网点层中的光学网点的排布呈曲线,且接近光源的地方光学网点排列密度小,远离光源的地方光学网点排列密度大。
在上述技术方案的基础上,所述光学网点层上印刷有油墨。
在上述技术方案的基础上,所述真空蒸镀的温度低于或等于60摄氏度。
在上述技术方案的基础上,所述量子点的红色、绿色和蓝色的体积比为1:2:3,量子点以环氧树脂活性稀释剂进行调和;真空度1*10-1-1*10-6Pa,温度范围为45-55℃。
一种玻璃导光板的制作方法,其包括
将量子点涂覆在上玻璃的下表面;
在真空室内通过玻璃胶将上玻璃的下表面和下玻璃的上表面相粘合,且玻璃胶的宽度为3-4mm,并从上玻璃和下玻璃的边缘向内起算;玻璃胶的主要成分为硅酸钠和有机硅酮;
在上玻璃的上表面通过辊涂方式涂覆用于将光线扩散雾化的扩散剂;
在下玻璃的下表面设计光学网点层并印刷油墨;
将玻璃导光板放置于背光模组中,且下玻璃的下表面与背光模组中的反射片相对。在上述制作方法的基础上,量子点通过真空蒸镀的方式涂覆于上玻璃的下表面,且真空蒸镀的温度低于或等于60摄氏度。在上述制作方法的基础上,所述光学网点层中的光学网点的排布呈曲线,且接近光源的地方光学网点排列密度小,远离光源的地方光学网点排列密度大。
本发明的有益效果为:该玻璃导光板广泛应用于蓝光LED灯的侧光式背光模组中,替代传统的PMMA或MS材质导光板,代替量子膜,取消铝背板,使TV模组向超薄化,超高清化发展;同时保留了导光板的性质,在优化宏观色彩饱和度的前提下,又可以进行光学网点设计,优化画面的均匀性,在超薄化和超高色域的TV模组中具有重要意义。
附图说明
图1:本发明的结构示意图;
图2:本发明的制作方法流程图;
图3:本发明设置于背光模组中的结构示意图。
具体实施方式
下面结合附图和实施例对本发明作进一步说明:
这里需要说明的是,下述方位词上、下均是以图1所示的视图为基准定义的,应当理解,所述方位词的使用不应限制本申请所请求的保护范围。
实施例1:如图1和图3所示,本实施例的一种玻璃导光板,包括上玻璃1和下玻璃2,所述上玻璃1的下表面和下玻璃2的上表面相贴合,且上玻璃1的下表面通过真空蒸镀的方式涂覆有均匀的量子点100;所述上玻璃1的上表面涂覆有用于将光线扩散雾化的扩散层3,所述下玻璃2的下表面设有用于将线光源转化为面光源的光学网点层4。所述下玻璃2厚度为0.5mm-2mm,所述上玻璃1厚度为0.3mm-1mm,其主要起到保护量子点100的作用。
优选的,所述上玻璃1和下玻璃2之间通过玻璃胶200粘合,玻璃胶200的宽度为3-4mm,并从上玻璃1和下玻璃2的边缘向内起算;玻璃胶200的主要成分为硅酸钠和有机硅酮。
优选的,所述扩散层3采用扩散剂制成,扩散剂的主要成分为丙烯酸树脂,其采用辊涂的方式均匀涂覆在上玻璃1的上表面。
优选的,所述光学网点层4中的光学网点的排布呈曲线,且接近光源400的地方光学网点排列密度小,远离光源400的地方光学网点排列密度大。
优选的,所述光学网点层4上印刷有油墨。
进一步,所述真空蒸镀的温度低于或等于60摄氏度。
更进一步,所述量子点100的红色、绿色和蓝色的体积比为1:2:3,量子点100以环氧树脂活性稀释剂进行调和;真空度1*10-1-1*10-6Pa,温度范围为45-55℃。
实施例2:如图2和图3所示,本实施例的一种玻璃导光板的制作方法,其包括
将量子点100通过真空蒸镀的方式涂覆在上玻璃1的下表面;且真空蒸镀的温度低于或等于60摄氏度;
在真空室内通过玻璃胶200将上玻璃1的下表面和下玻璃2的上表面相粘合,且玻璃胶200的宽度为3-4mm,并从上玻璃1和下玻璃2的边缘向内起算;玻璃胶200的主要成分为硅酸钠和有机硅酮;
在上玻璃1的上表面通过辊涂方式涂覆用于将光线扩散雾化的扩散剂;
在下玻璃2的下表面设计光学网点层4并印刷油墨;所述光学网点层4中的光学网点的排布呈曲线,且接近光源400的地方光学网点排列密度小,远离光源400的地方光学网点排列密度大;
将玻璃导光板放置于背光模组300中,且下玻璃2的下表面与背光模组中的反射片5相贴合。
上面以举例方式对本发明进行了说明,但本发明不限于上述具体实施例,凡基于本发明所做的任何改动或变型均属于本发明要求保护的范围。

Claims (10)

1.一种玻璃导光板,其特征在于,包括上玻璃(1)和下玻璃(2),所述上玻璃(1)的下表面和下玻璃(2)的上表面相贴合,且上玻璃(1)的下表面通过真空蒸镀的方式涂覆有均匀的量子点(100);所述上玻璃(1)的上表面涂覆有用于将光线扩散雾化的扩散层(3),所述下玻璃(2)的下表面设有用于将线光源转化为面光源的光学网点层(4)。
2.根据权利要求1所述的一种玻璃导光板,其特征在于:所述上玻璃(1)和下玻璃(2)之间通过玻璃胶(200)粘合。
3.根据权利要求1所述的一种玻璃导光板,其特征在于:所述扩散层(3)采用扩散剂制成,扩散剂的主要成分为丙烯酸树脂,其采用辊涂的方式均匀涂覆在上玻璃(1)的上表面。
4.根据权利要求1所述的一种玻璃导光板,其特征在于:所述光学网点层(4)中的光学网点的排布呈曲线,且接近光源的地方光学网点排列密度小,远离光源的地方光学网点排列密度大。
5.根据权利要求1或4所述的一种玻璃导光板,其特征在于:所述光学网点层(4)上印刷有油墨。
6.根据权利要求1所述的一种玻璃导光板,其特征在于:所述真空蒸镀的温度低于或等于60摄氏度。
7.根据权利要求1所述的一种玻璃导光板,其特征在于:所述量子点(100)的红色、绿色和蓝色的体积比为1:2:3,量子点(100)以环氧树脂活性稀释剂进行调和;真空度1*10-1-1*10-6Pa,温度范围为45-55℃。
8.一种玻璃导光板的制作方法,其特征在于:包括
将量子点(100)涂覆在上玻璃(1)的下表面;
通过玻璃胶(200)将上玻璃(1)的下表面和下玻璃(2)的上表面相粘合;
在上玻璃(1)的上表面通过辊涂方式涂覆用于将光线扩散雾化的扩散剂;
在下玻璃(2)的下表面设计光学网点层(4)并印刷油墨;
将玻璃导光板放置于背光模组(300)中,且下玻璃(2)的下表面与背光模组中的反射片(5)相贴合。
9.根据权利要求8所述的一种玻璃导光板的制作方法,其特征在于:量子点(100)通过真空蒸镀的方式涂覆于上玻璃(1)的下表面,且真空蒸镀的温度低于或等于60摄氏度。
10.根据权利要求8所述的一种玻璃导光板的制作方法,其特征在于:所述光学网点层(4)中的光学网点的排布呈曲线,且接近光源的地方光学网点排列密度小,远离光源的地方光学网点排列密度大。
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