CN106896566B - 一种背光结构和液晶显示设备 - Google Patents

一种背光结构和液晶显示设备 Download PDF

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CN106896566B
CN106896566B CN201710149270.2A CN201710149270A CN106896566B CN 106896566 B CN106896566 B CN 106896566B CN 201710149270 A CN201710149270 A CN 201710149270A CN 106896566 B CN106896566 B CN 106896566B
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liquid crystal
light source
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许军
张青
李虎
刘同敏
邵林飞
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BOE Technology Group Co Ltd
Hefei BOE Optoelectronics Technology Co Ltd
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    • GPHYSICS
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    • 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
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    • GPHYSICS
    • G02OPTICS
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    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
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    • 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
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    • 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
    • G02B6/0056Means for improving the coupling-out of light from the light guide for producing polarisation effects, e.g. by a surface with polarizing properties or by an additional polarizing elements
    • 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
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    • G02OPTICS
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    • 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
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Abstract

本发明公开了一种背光结构和液晶显示设备,背光结构包括:阵列基板;反射起偏层,设置在阵列基板的背面上;和光源,设置在阵列基板的一侧;其中:光源用于将其发出的光线自阵列基板的一侧射入阵列基板内并照射在反射起偏层上;反射起偏层用于将照射至其上的光线进行反射、同时使反射的光线偏振化并自阵列基板的正面射出。本发明提供的背光结构,光源发出的光线自阵列基板的一侧射入阵列基板内,经阵列基板背面的反射起偏层反射后自阵列基板的正面射出,替代了现有的胶框式背光结构,其结构更简单轻薄,在应用于液晶显示设备时,无需再设置玻璃基板,制成的液晶显示设备省去了一个玻璃基板的厚度,液晶显示设备的厚度可做的更小、质量也可做的更轻。

Description

一种背光结构和液晶显示设备
技术领域
本文涉及但不限于液晶显示技术,尤指一种背光结构和一种液晶显示设备。
背景技术
液晶显示设备目前仍然是需求量巨大的显示器领域最通用的,消费者对显示器的外观设计的轻薄需求一直存在,但是受制于目前的工艺水平和传统显示器结构(导光板朝向下偏光层,下偏光层设置在玻璃基板上,玻璃基板上设置阵列层,液晶层设置在阵列层上,显示面板层设置在液晶层上,上偏光层设置在显示面板层上),液晶显示设备的轻薄化困难重重。
发明内容
为了解决上述技术问题中的至少之一,本文提供了一种背光结构,其结构简单、轻薄,应用于液晶显示设备时制成的液晶显示设备也更轻薄,可更好地满足用户购置液晶显示设备的需求。
为了达到本文目的,本发明提供了一种背光结构,包括:阵列基板;反射起偏层,设置在所述阵列基板的背面上;和光源,设置在所述阵列基板的一侧;其中:所述光源用于将其发出的光线自所述阵列基板的所述一侧射入所述阵列基板内并照射在所述反射起偏层上;所述反射起偏层用于将照射至其上的光线进行反射、同时使反射的光线偏振化并自所述阵列基板的正面射出。
可选地,所述阵列基板的所述一侧的侧面相对于所述阵列基板的正面倾斜,所述阵列基板的所述一侧的侧面与所述阵列基板的正面的夹角为钝角。
可选地,所述阵列基板的所述一侧的侧面与所述阵列基板的正面的夹角为120度,所述光源的发光角度为120度,所述阵列基板的折射率为1.5。
可选地,所述阵列基板的所述一侧的侧面与所述阵列基板的背面的夹角为60度。
可选地,所述反射起偏层采用光刻技术沉积在所述阵列基板上。
可选地,所述反射起偏层为WGP线栅起偏器或DBEF反射偏光片。
可选地,所述阵列基板为正面设置有阵列层的薄膜晶体管基板,所述光源为LED。
可选地,所述薄膜晶体管基板的材质为玻璃或柔性材料。
本发明还提供了一种液晶显示设备,包括上述任一实施例所述的背光结构和显示结构,所述阵列基板的所述正面设置所述显示结构。
可选地,所述显示结构包括:液晶层,设置在所述阵列基板的所述正面上;显示面板层,设置在所述液晶层上;和上偏光层,设置在所述显示面板层上。
与现有技术相比,本发明提供的背光结构,光源发出的光线自阵列基板的一侧射入阵列基板内,经阵列基板背面的反射起偏层反射后自阵列基板的正面射出,替代了现有的胶框式背光结构,其结构更简单轻薄,在应用于液晶显示设备时,无需再设置玻璃基板,制成的液晶显示设备省去了一个玻璃基板的厚度,液晶显示设备的厚度可做的更小、质量也可做的更轻。
本文的其它特征和优点将在随后的说明书中阐述,并且,部分地从说明书中变得显而易见,或者通过实施本文而了解。本文的目的和其他优点可通过在说明书、权利要求书以及附图中所特别指出的结构来实现和获得。
附图说明
附图用来提供对本文技术方案的进一步理解,并且构成说明书的一部分,与本申请的实施例一起用于解释本文的技术方案,并不构成对本文技术方案的限制。
图1为本发明一个实施例所述的背光结构的结构示意图;
图2为本发明一个实施例所述的液晶显示设备的结构示意图;
图3为本发明另一个实施例所述的液晶显示设备的结构示意图。
其中,图1至图3中附图标记与部件名称之间的对应关系为:
1阵列基板,2反射起偏层,3光源,4液晶层,5显示面板层,6上偏光层,7薄膜晶体管基板,8阵列层。
具体实施方式
为使本文的目的、技术方案和优点更加清楚明白,下文中将结合附图对本文的实施例进行详细说明。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互任意组合。
在下面的描述中阐述了很多具体细节以便于充分理解本文,但是,本文还可以采用其他不同于在此描述的方式来实施,因此,本文的保护范围并不受下面公开的具体实施例的限制。
下面结合附图描述本文一些实施例的背光结构和液晶显示设备。
本发明提供的背光结构,如图1所示,包括:阵列基板1;反射起偏层2,设置在所述阵列基板1的背面上;和光源3,设置在所述阵列基板1的一侧;其中:所述光源3用于将其发出的光线自所述阵列基板1的所述一侧射入所述阵列基板1内并照射在所述反射起偏层2上;所述反射起偏层2用于将照射至其上的光线进行反射、同时使反射的光线偏振化并自所述阵列基板1的正面射出。
本发明提供的背光结构,光源3发出的光线自阵列基板1的一侧射入阵列基板1内,经阵列基板1背面的反射起偏层2反射后自阵列基板1的正面射出,替代了现有的胶框式背光结构,其结构更简单轻薄,在应用于液晶显示设备时,无需再设置玻璃基板,制成的液晶显示设备省去了一个玻璃基板的厚度,液晶显示设备的厚度可做的更小、质量也可做的更轻。
较好地,光源3可以是设置在阵列基板1的左侧,也可以是设置在阵列基板1的右侧等的方式,均可实现本申请的目的,其宗旨未脱离本发明的设计思想,在此不再赘述,均应属于本申请的保护范围内。
可选地,所述阵列基板1的所述一侧的侧面相对于所述阵列基板1的正面倾斜,所述阵列基板1的所述一侧的侧面与所述阵列基板1的正面的夹角为钝角,光源3平行于阵列基板1的所述一侧的侧面设置,且光源3自阵列基板1的所述一侧射入所述阵列基板1内的光线至多与阵列基板1的正面平行,确保其直接照射在阵列基板1背面的反射起偏层2上,避免直接自阵列基板1的正面射出,影响显示器正常显示。
照射至反射起偏层2上的光线一部分进行反射、另一部分进行透射,透射的光线自阵列基板1的背面射出,射出部分可以通过增加多层蒸镀以增加反射。
具体地,如图1所示,所述阵列基板1的所述一侧的侧面与所述阵列基板1的正面的夹角A为120度,所述光源3的发光角度B为120度、并正对阵列基板1的所述一侧的侧面,所述阵列基板1的折射率为1.5;通过上述参数射入阵列基板1内的光线不会直接照射在整列基板的正面上而射出(至多平行于阵列基板1的正面),确保显示效果。
可选地,所述阵列基板1的所述一侧的侧面与所述阵列基板1的背面的夹角C为60度。
制成的阵列基板1的正面与背面平行,更利于阵列基板1布局、制造和存放,且美观轻薄。
当然,阵列基板1的所述一侧的侧面与阵列基板的背面的夹角也可以是10度,20度,30度,70度,80度,120度等,均可实现本申请的目的,其宗旨未脱离本发明的设计思想,在此不再赘述,均应属于本申请的保护范围内。
图1中的箭头表示光线。
可选地,所述反射起偏层2采用光刻技术沉积在所述阵列基板1上,其形成工艺简单、效率高,更利于企业生产制造。
当然,反射起偏层2也可以是直接喷印在阵列基板1上的方式等,均可实现本申请的目的,其宗旨未脱离本发明的设计思想,在此不再赘述,均应属于本申请的保护范围内。
具体地,所述反射起偏层2为WGP(wire grid polarizer)线栅起偏器或DBEF(DualBrightness Enhancement Film)反射偏光片。
具体地,所述阵列基板1为正面设置有阵列层的薄膜晶体管基板,所述光源3为LED。
其中,所述薄膜晶体管基板的材质为玻璃、树脂或者柔性材料等透明板体,均可实现本申请的目的,其宗旨未脱离本发明的设计思想,在此不再赘述,均应属于本申请的保护范围内。
本发明提供的液晶显示设备,包括上述任一实施例所述的背光结构和显示结构,所述阵列基板1的所述正面设置所述显示结构。
本发明提供的液晶显示设备,具备背光结构的全部优点,制成后其厚度更薄、质量更轻。
且液晶显示设备可以实现AR(Augmented Reality,增强现实)效果或者是透明显示。
可选地,所述显示结构包括:液晶层4,设置在所述阵列基板1的所述正面上;显示面板层5,设置在所述液晶层4上;和上偏光层6,设置在所述显示面板层5上。
液晶显示设备省去了玻璃基板等结构,制成的液晶显示设备更轻薄。
综上所述,本发明提供的背光结构,光源发出的光线自阵列基板的一侧射入阵列基板内,经阵列基板背面的反射起偏层反射后自阵列基板的正面射出,替代了现有的胶框式背光结构,其结构更简单轻薄,在应用于液晶显示设备时,无需再设置玻璃基板,制成的液晶显示设备省去了一个玻璃基板的厚度,液晶显示设备的厚度可做的更小、质量也可做的更轻。
本发明还提供了一种背光结构(结合图3所示),包括:薄膜晶体管基板7;反射起偏层2,设置在所述薄膜晶体管基板7的正面上;和光源3,设置在所述薄膜晶体管基板7的一侧或者是设置在薄膜晶体管基板7的背面;其中:所述光源3用于将其发出的光线自所述薄膜晶体管基板7的所述一侧射入所述薄膜晶体管基板7内并照射在所述反射起偏层2上;所述反射起偏层2用于将照射至其上的光线进行透射、同时使透射的光线偏振化并自所述薄膜晶体管基板7的正面射出,也可实现本申请的目的,其宗旨未脱离本发明的设计思想,在此不再赘述。
本发明提供的液晶显示设备,如图3所示,包括上述任一实施例所述的背光结构和显示结构,所述薄膜晶体管基板7的所述正面设置所述显示结构。
其中,如图3所示,所述显示结构包括:阵列基板1,其背面朝向薄膜晶体管基板7的正面的反射起偏层2,液晶层4,设置在所述阵列基板1的正面上;显示面板层5,设置在所述液晶层4上;和上偏光层6,设置在所述显示面板层5上。
较好地,阵列基板1为正面设置有阵列层8的玻璃基板,所述反射起偏层2为WGP(wire grid polarizer)线栅起偏器或DBEF(Dual Brightness Enhancement Film)反射偏光片。
在本文的描述中,术语“安装”、“相连”、“连接”、“固定”等均应做广义理解,例如,“连接”可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是直接相连,也可以通过中间媒介间接相连。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本文中的具体含义。
在本说明书的描述中,术语“一个实施例”、“一些实施例”、“具体实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于本文的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不一定指的是相同的实施例或实例。而且,描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
虽然本文所揭露的实施方式如上,但所述的内容仅为便于理解本文而采用的实施方式,并非用以限定本文。任何本文所属领域内的技术人员,在不脱离本文所揭露的精神和范围的前提下,可以在实施的形式及细节上进行任何的修改与变化,但本文的专利保护范围,仍须以所附的权利要求书所界定的范围为准。

Claims (9)

1.一种背光结构,其特征在于,包括:
阵列基板;
反射起偏层,设置在所述阵列基板的背面上;和
光源,设置在所述阵列基板的一侧;其中:
所述光源用于将其发出的光线自所述阵列基板的所述一侧射入所述阵列基板内并照射在所述反射起偏层上;
所述反射起偏层用于将照射至其上的光线进行反射、同时使反射的光线偏振化并自所述阵列基板的正面射出;
所述阵列基板的所述一侧的侧面相对于所述阵列基板的正面倾斜,所述阵列基板的所述一侧的侧面与所述阵列基板的正面的夹角为钝角;
所述阵列基板的所述一侧的侧面与所述阵列基板的正面的夹角为120度,所述光源的发光角度为120度,所述光源平行于所述阵列基板的所述一侧的侧面,且所述光源自所述阵列基板的所述一侧射入所述阵列基板内的光线至多与所述阵列基板的正面平行,确保其直接照射在所述阵列基板背面的所述反射起偏层上。
2.根据权利要求1所述的背光结构,其特征在于,所述阵列基板的折射率为1.5。
3.根据权利要求2所述的背光结构,其特征在于,所述阵列基板的所述一侧的侧面与所述阵列基板的背面的夹角为60度。
4.根据权利要求1所述的背光结构,其特征在于,所述反射起偏层采用光刻技术沉积在所述阵列基板上。
5.根据权利要求1所述的背光结构,其特征在于,所述反射起偏层为WGP线栅起偏器或DBEF反射偏光片。
6.根据权利要求1至5中任一项所述的背光结构,其特征在于,所述阵列基板为正面设置有阵列层的薄膜晶体管基板,所述光源为LED。
7.根据权利要求6所述的背光结构,其特征在于,所述薄膜晶体管基板的材质为玻璃或柔性材料。
8.一种液晶显示设备,其特征在于,包括有如权利要求1至7中任一项所述的背光结构和显示结构,所述阵列基板的所述正面设置所述显示结构。
9.根据权利要求8所述的液晶显示设备,其特征在于,所述显示结构包括:
液晶层,设置在所述阵列基板的所述正面上;
显示面板层,设置在所述液晶层上;和
上偏光层,设置在所述显示面板层上。
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