CN2769943Y - 双面液晶显示装置 - Google Patents

双面液晶显示装置 Download PDF

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CN2769943Y
CN2769943Y CNU200420103606XU CN200420103606U CN2769943Y CN 2769943 Y CN2769943 Y CN 2769943Y CN U200420103606X U CNU200420103606X U CN U200420103606XU CN 200420103606 U CN200420103606 U CN 200420103606U CN 2769943 Y CN2769943 Y CN 2769943Y
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liquid crystal
crystal display
double
display device
guide plate
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林精皇
林文斌
韩虹
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Innolux Shenzhen Co Ltd
Innolux Corp
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Innolux Shenzhen Co Ltd
Innolux Display Corp
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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
    • G02F1/133553—Reflecting elements
    • G02F1/133555—Transflectors
    • 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
    • G02B6/0063—Means for improving the coupling-out of light from the light guide for extracting light out both the major surfaces of the light guide
    • 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
    • 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
    • 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
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
    • 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
    • G02F1/133342—Constructional arrangements; Manufacturing methods for double-sided displays
    • 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
    • G02F1/133504—Diffusing, scattering, diffracting elements

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Abstract

本实用新型涉及一种双面液晶显示装置，包括一导光板、一设置于该导光板侧面的光源和一设置于该导光板下方的可实现半穿透半反射的液晶显示模组。本实用新型双面液晶显示装置轻薄、成本能耗低且可靠性高。

Description

双面液晶显示装置
【技术领域】
本实用新型涉及一种液晶显示装置。
【背景技术】
目前，由于液晶显示装置具有电功耗低、轻薄短小和低电压驱动等优点，液晶显示装置已经广泛应用在掌上电脑和移动电话等移动通讯产品的显示屏幕中。然而，随着时代的进步，很多产品需要在显示屏幕的正反两面上显示图像。液晶显示装置要达到双面显示的功能需要两块液晶显示模组，即将两块单面显示的子模组并列在一起，一块向内一块向外，以实现正、反双面显示。
一种现有技术双面液晶显示装置。如图1所示，该双面液晶显示装置10包括一双面发光导光板11、一设置于该导光板11入光面12侧的光源13和两分别设置于该导光板11两出光面16、17侧的液晶显示模组14、15。自光源13发出的光经入光面12入射到导光板11后，在导光板11内分离后从两出光面16、17射出，最后，入射到两液晶显示模组14、15。
该双面液晶显示装置10中使用两液晶显示模组14、15，必须使用两套电子驱动装置来驱动该两液晶显示模组14、15。该结构成本能耗高、引线复杂造成可靠性下降，同时，其使用两液晶显示模组使产品的厚度增加，不符合轻薄短小的产品潮流。
【实用新型内容】
为了克服现有技术双面液晶显示装置厚重、成本能耗高和可靠性低的问题，本实用新型提供一种轻薄、成本能耗低且可靠性高的双面液晶显示装置。
本实用新型解决技术问题所采用的技术方案是：提供一种双面液晶显示装置，其包括一导光板、一设置于该导光板侧面的光源和一设置于该导光板下方的可实现半穿透半反射的液晶显示模组。
和现有技术相比较，本实用新型的有益效果是：本实用新型双面液晶显示装置使用一可实现半穿透半反射的液晶显示模组，  自光源发出的光或自然光入射到该液晶显示模组中。一部分光穿透该液晶显示模组射出，一部分光经该液晶显示模组发生反射后，入射至该导光板并从该导光板射出。从液晶显示面板一面看到的图像为正像，从该导光板一面看到的图像是该正像左右倒置的像，从而实现双面显示。
本实用新型双面液晶显示装置仅使用一液晶显示模组就能实现双面显示的功能，与现有技术使用两液晶显示模组的双面液晶显示装置相比降低了成本和功耗。本实用新型双面液晶显示装置仅使用一液晶显示模组，减少了与电子驱动装置引线的连接，降低了线路的复杂性增加了可靠性。同时，可使本实用新型双面液晶显示装置更加轻薄。
【附图说明】
图1是一种现有技术双面液晶显示装置的示意图。
图2是本实用新型双面液晶显示装置第一实施方式的平面示意图。
图3是本实用新型双面液晶显示装置第二实施方式的立体分解图。
图4是本实用新型双面液晶显示装置第三实施方式导光板的立体图。
图5是本实用新型双面液晶显示装置第四实施方式导光板的立体图。
图6是本实用新型双面液晶显示装置第五实施方式导光板的立体图。
图7是本实用新型双面液晶显示装置第六实施方式导光板的立体图。
图8是本实用新型双面液晶显示装置第七实施方式导光板的立体图。
图9是本实用新型双面液晶显示装置第八实施方式的立体分解图。
图10是本实用新型双面液晶显示装置第九实施方式的剖面示意图。
图11是本实用新型双面液晶显示装置第十实施方式的侧视图。
【具体实施方式】
请参阅图2，是本实用新型双面液晶显示装置第一实施方式的平面示意图。一种双面液晶显示装置20，包括一导光板21、一设置于该导光板21侧面的光源22和一设置于该导光板21下方的半穿透式液晶显示面板23。
该双面液晶显示装置20使用一半穿透式液晶显示面板23，自光源22发出的光或自然光入射到该半穿透式液晶显示面板23中。一部分光穿透该液晶显示面板23射出，一部分光经该液晶显示面板23发生反射后，入射至该导光板21并从该导光板21射出。从液晶显示面板23一面看到的图像为正像，从该导光板21一面看到的图像是该正像左右倒置的像，从而实现双面显示。
本实用新型双面液晶显示装置20仅使用一液晶显示面板23就能实现双面显示的功能，与现有技术使用两液晶显示面板的双面液晶显示装置相比降低了成本和功耗。本实用新型双面液晶显示装置20仅使用一液晶显示面板23，减少了与电子驱动装置引线的连接，降低了线路的复杂性增加了可靠性。同时，可使本实用新型双面液晶显示装置20更加轻薄。
请参阅图3，是本实用新型双面液晶显示装置第二实施方式的立体分解图。该双面液晶显示装置30与第一实施方式双面液晶显示装置20的区别在于：该导光板31上方还设有一具有显示窗口34的反射膜35。该显示窗口34的面积可根据需要调整其大小，以达到主副显示屏幕面积大小不等的效果。该反射膜35可将从该导光板31上表面射出的部分光反射后重新利用，提高光的利用率，提高显示亮度。
请参阅图4，是本实用新型双面液晶显示装置第三实施方式导光板的立体图。该双面液晶显示装置与第二实施方式双面液晶显示装置30的区别在于：该导光板41上表面46具有网点47、48，其相对于显示窗口的上表面46网点47的直径大于其四周网点48的直径。
由于射向反射膜非显示窗口区的光会被反射回去，而在显示窗口44区的光直接射出，所以，在视觉上显示窗口44区可能会有一暗影存在。该导光板41上表面46具有网点47、48，利用该网点47、48的反射和散射可防止出现上述暗影。
请参阅图5，是本实用新型双面液晶显示装置第四实施方式导光板的立体图。该双面液晶显示装置与第二实施方式双面液晶显示装置30的区别在于：该导光板51上表面56具有网点57，其相对于显示窗口54的上表面56网点57的密度大于其四周网点58的密度。
请参阅图6，是本实用新型双面液晶显示装置第五实施方式导光板的立体图。该双面液晶显示装置与第二实施方式双面液晶显示装置30的区别在于：该导光板61下表面66具有V形沟槽67、68，其相对于显示窗口64的下表面66V形沟槽67的深度大于其四周V形沟槽68的深度。该V形沟槽67、68可起到网点的功效，防止出现暗影。
请参阅图7，是本实用新型双面液晶显示装置第六实施方式导光板的立体图。该双面液晶显示装置与第二实施方式双面液晶显示装置30的区别在于：该导光板71相对于该显示窗口74的上表面76具有网点77，其四周具有V形沟槽78。
请参阅图8，是本实用新型双面液晶显示装置第七实施方式导光板的立体图。该双面液晶显示装置与第二实施方式双面液晶显示装置30的区别在于：该导光板81相对于该显示窗口84的下表面86具有V形沟槽87，其四周具有网点88。
请参阅图9，是本实用新型双面液晶显示装置第八实施方式的立体分解图。该双面液晶显示装置90与第二实施方式双面液晶显示装置30的区别在于：该导光板91与该反射膜95之间还设有一扩散片99。利用该扩散片99的扩散功能可使该双面液晶显示装置90的亮度更加均匀，以达到美化视觉的效果。
请参阅图10，是本实用新型双面液晶显示装置第九实施方式的剖面示意图。该双面液晶显示装置100与第一实施方式双面液晶显示装置20的区别在于：该导光板101上方还设有一具有显示窗口104的固定铁框110，该铁框110与导光板101相邻的表面镀有一反射层111。该固定铁框110可保护固定该导光板101、光源102和该半穿透式液晶显示面板103。
请参阅图11，是本实用新型双面液晶显示装置第十实施方式的侧视图。该双面液晶显示模组200包括一导光板201、一设置于该导光板201侧面的光源202、一设置于该导光板201下方的液晶显示面板203和一设置于该液晶显示面板203下方的半穿半反射膜204。
该双面液晶显示装置200使用包括一液晶显示面板203和一半穿半反射膜204的液晶显示模组205。自光源201发出的光或自然光穿透该液晶显示面板203后入射到该半穿半反射膜204中。一部分光从该半穿半反射膜204射出。一部分光经该半穿半反射膜204发生反射后，先后穿透该液晶显示面板203和该导光板201，从而实现双面显示。
本实用新型的双面液晶显示装置并不限于本实施方式所述，如该导光板相对于显示窗口的表面网点密度小于其四周网点密度；该导光板相对于显示窗口的表面网点的直径小于其四周网点的直径；该具有显示窗口的反射膜还可设置于该半穿透式液晶显示面板下方；该扩散片还可设置于该导光板与该半穿透式液晶显示面板之间；该具有显示窗口的固定框还可是胶框，并设置于该半穿透式液晶显示面板下方。

Claims (10)

1.一种双面液晶显示装置，包括一导光板和一设置于该导光板侧面的光源，其特征在于：还包括一设置于该导光板下方的可实现半穿透半反射的液晶显示模组。
2.根据权利要求1所述的双面液晶显示装置，其特征在于：该液晶显示模组包括一半穿透式液晶显示面板。
3.根据权利要求2所述的双面液晶显示装置，其特征在于：该导光板上方还设有一具有显示窗口的反射膜。
4.根据权利要求3所述的双面液晶显示装置，其特征在于：该导光板上表面或下表面具有网点或V形沟槽。
5.根据权利要求3所述的双面液晶显示装置，其特征在于：该导光板与该反射膜或该半穿透式液晶显示面板之间还设有一扩散片。
6.根据权利要求2所述的双面液晶显示装置，其特征在于：该半穿透式液晶显示面板下方还设有一具有显示窗口的反射膜。
7.根据权利要求2所述的双面液晶显示装置，其特征在于：该导光板上方或该半穿透式液晶显示面板下方还设有一具有显示窗口的固定框。
8.根据权利要求7所述的双面液晶显示装置，其特征在于：该固定框为铁框或胶框。
9.根据权利要求8所述的双面液晶显示装置，其特征在于：该固定框与该导光板相邻的表面镀有一反射层。
10.根据权利要求1所述的双面液晶显示装置，其特征在于：该液晶显示模组包括一液晶显示面板和一设置于该液晶显示面板下方的半穿半反射膜。
CNU200420103606XU 2004-12-30 2004-12-30 双面液晶显示装置 Expired - Lifetime CN2769943Y (zh)

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CN104460109A (zh) * 2014-11-28 2015-03-25 苏州佳世达电通有限公司 显示装置
CN105121950A (zh) * 2013-04-24 2015-12-02 宗拓贝尔照明器材有限公司 用于产生直接照明和间接照明的灯具
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JP3808301B2 (ja) * 2000-10-17 2006-08-09 株式会社日立製作所 液晶表示装置
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CN104460109A (zh) * 2014-11-28 2015-03-25 苏州佳世达电通有限公司 显示装置
WO2017152454A1 (zh) * 2016-03-11 2017-09-14 深圳市华星光电技术有限公司 一种导光板、背光模组及双面显示装置

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