CN107728383A - 双面显示装置及其显示模组 - Google Patents

双面显示装置及其显示模组 Download PDF

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Publication number
CN107728383A
CN107728383A CN201711236910.XA CN201711236910A CN107728383A CN 107728383 A CN107728383 A CN 107728383A CN 201711236910 A CN201711236910 A CN 201711236910A CN 107728383 A CN107728383 A CN 107728383A
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Prior art keywords
display
display surface
light source
display module
light emitting
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杨勇
杨映保
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Priority to CN201711236910.XA priority Critical patent/CN107728383A/zh
Priority to US15/745,058 priority patent/US20190384112A1/en
Priority to PCT/CN2017/114518 priority patent/WO2019104746A1/zh
Publication of CN107728383A publication Critical patent/CN107728383A/zh
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    • 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
    • G—PHYSICS
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    • 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
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    • 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
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    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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    • 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
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    • 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
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    • 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
    • G—PHYSICS
    • G02—OPTICS
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    • 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 
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    • 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
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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
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  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
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  • Optics & Photonics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Signal Processing (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Planar Illumination Modules (AREA)

Abstract

本发明提供一种双面显示装置及其显示模组，所述显示模组包括背光模组、第一显示面以及第二显示面，所述第一显示面为液晶显示面板，所述背光模组设于所述第一显示面和所述第二显示面之间，所述背光模组包括透明基板、光源及光学膜片组，所述光源设于所述基板朝向所述光学膜片组的一面，所述光学膜片组位于所述光源与所述第一显示面之间。本发明提出的显示模组将背光模组作为第一显示面和第二显示面的光源，从而实现液晶显示模组的双面显示特性、提升用户体验。

Description

双面显示装置及其显示模组
技术领域
本发明涉及双面显示技术领域，尤其涉及一种双面显示装置及其显示模组。
背景技术
OLED面板由于其柔性可弯曲的特性受到市场的广泛青睐，该特性也使得OLED显示技术成为双屏显示领域中的主流，双屏显示不仅可以增大显示面积，也可给消费者带来更加舒适便捷的体验。但是，LCD显示技术由于其自身特性的限制，在双屏显示领域中很少用到，目前，市场上针对LCD显示技术也没有办法突破这一限制，因此，LCD显示技术在双屏和柔性显示这一方面无法与OLED显示技术相媲美。
发明内容
为了解决现有技术的不足，本发明提供一种双面显示装置及其显示模组，能够在液晶显示模组中实现双面显示、提升用户体验。
本发明提出的具体技术方案为：提供一种显示模组，所述显示模组包括背光模组、第一显示面以及第二显示面，所述第一显示面为液晶显示面板，所述背光模组设于所述第一显示面和所述第二显示面之间，所述背光模组包括透明基板、光源及光学膜片组，所述光源设于所述基板朝向所述光学膜片组的一面，所述光学膜片组位于所述光源与所述第一显示面之间。
进一步地，还包括第一驱动电路，所述第一驱动电路用于驱动所述第一显示面进行图像显示。
进一步地，所述光源为发光二极管阵列，所述发光二极管阵列包括呈矩阵排列的多个发光二极管。
进一步地，所述发光二极管阵列的每一行上的发光二极管的个数、每一列上的发光二极管的个数均不少于10。
进一步地，所述第二显示面为玻璃，所述显示模组还包括第二驱动电路，所述第二驱动电路用于控制多个发光二极管的开/关，以在所述第二显示面呈现黑白图像。
进一步地，所述光学膜片组包括扩散片和第一增亮膜，所述扩散片设于所述第一增亮膜与所述光源之间。
进一步地，所述背光模组还包括第二增亮膜，所述第二增亮膜设于所述透明基板与所述第二显示面之间。
进一步地，所述第一增亮膜和所述第二增亮膜均为棱镜片。
进一步地，所述背光模组还包括导光板，所述导光板位于所述光源与所述光学膜片组之间。
本发明还提供了一种双面显示装置，所述双面显示装置包括如上任一所述的显示模组。
本发明提出的显示模组包括背光模组、第一显示面以及第二显示面，所述第一显示面为液晶显示面板，所述背光模组设于所述第一显示面和所述第二显示面之间，将背光模组作为第一显示面和第二显示面的光源，从而实现液晶显示模组的双面显示特性、提升用户体验。
附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明的技术方案及其它有益效果显而易见。
图1为实施例1中显示模组的结构示意图；
图2为实施例1中背光模组的结构示意图；
图3为实施例1中发光二极管阵列的结构示意图；
图4为实施例1中显示模组的电路结构示意图；
图5为实施例2中显示模组的结构示意图；
图6为实施例2中背光模组的结构示意图。
具体实施方式
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，相同的标号将始终被用于表示相同的元件。
实施例1
参照图1、图2，本实施例中的显示模组包括背光模组1、第一显示面2以及第二显示面3，第一显示面2为液晶显示面板，背光模组1设于第一显示面2和第二显示面3之间，背光模组1包括透明基板11、光源12及光学膜片组13，光源12设于基板11朝向光学膜片组13的一面，光学膜片组13位于光源12与第一显示面2之间，光源12朝向第一显示面2发出的光线作为第一显示面2的背光，光源12朝向第二显示面3发出的光线为第二显示面3提供光源。
本实施例中的背光模组1为直下式背光模组，光源12朝向第一显示面2发出的光线经过光学膜片组13后入射至第一显示面2中，光源12朝向第二显示面3发出的光线经过透明基板11后入射至第二显示面2中，背光模组1既作为第一显示面2的背光模组，同时为第二显示面3提供光源，从而实现液晶显示模组的双面显示性能，提升了用户体验。其中，透明基板11的材质为玻璃或蓝宝石。
第一显示面2包括下偏光片21、TFT阵列基板22、液晶层23、CF基板24、上偏光片25、胶层26以及盖板27。盖板27作为第一显示面2的最外层对第一显示面2进行保护，液晶层23位于下偏光片21与盖板27之间，TFT阵列基板22位于液晶层23与下偏光片21之间，上偏光片25位于液晶层23与盖板27之间，CF基板24位于液晶层23与上偏光片25之间，胶层26位于上偏光片25与盖板27之间。
光学膜片组13包括扩散片131和第一增亮膜132，扩散片131设于第一增亮膜132与光源12之间。扩散片131用于对光源12发出的光线进行扩散，使得光源12发出的光线在各个视角方向均匀分布。第一增亮膜132用于提高第一显示面2在正视角方向上的对比度和亮度，增加第一显示面2在正视角方向上的可读性。
为了提升第二显示面3在正视角方向上的对比度和亮度，背光模组还包括第二增亮膜14，第二增亮膜14设于透明基板11与第二显示面3之间。第一增亮膜132与第二增亮膜14均为棱镜片，光源12发出的大视角的发散光经过棱镜片后汇聚在较小的角度范围内出射,从而增加第一显示面2和第二显示面3在正视角方向上的的亮度。
为了进一步使得光源12发出的光线在各个视角方向均匀分布，背光模组1还包括导光板15，导光板15位于光源12与光学膜片组13之间。光源12发出的光线经过导光板15后从导光板15的出光面均匀出射。
结合图3，本实施例中的光源12为发光二极管阵列，发光二极管阵列包括呈矩阵排列的多个发光二极管120。由于本实施例中的背光模组1为直下式，为了不影响第一显示面2的显示效果，发光二极管阵列的每一行上的发光二极管120的个数、每一列上的发光二极管120的个数均不少于10，即发光二极管阵列至少是10╳10阵列。当然，可以根据第一显示面2的实际需要设定发光二极管阵列的大小，这里不做限定。
结合图4，本实施例中的显示模组包括第一驱动电路4，第一驱动电路4用于驱动第一显示面2进行显示，具体地，第一驱动电路4用于控制光源12的亮度以及液晶层23中液晶分子的偏转来进行图像显示。
第二显示面3为透明面板，例如，第二显示面3为玻璃面板，显示模组还包括第二驱动电路5，第二驱动电路5用于控制多个发光二极管120的亮与暗，以在第二显示面3上呈现简单的黑白图像。具体地，第二驱动电路5包括多个驱动电极，多个驱动电极分别与多个发光二极管120一一对应，驱动电极可以为薄膜晶体管阵列。发光二极管阵列中的一个发光二极管120为第二显示面3上的黑白图像的一个像素点，通过驱动电极控制每一个发光二极管120的发光状态，从而控制各个像素点的显示，以在第二显示面3上呈现黑白图像。例如，在白色的显示区域，控制该区域中的像素点所对应的发光二极管120亮则显示白色，在黑色的显示区域，控制该区域中的像素点对应的发光二极管120不亮则显示黑色。
本实施例在显示黑白图像时，可以从发光二极管阵列中选择部分的发光二极管120来作为黑白图像的像素点，当然，选择的发光二极管120的数量越多，黑白图像的分辨率就越高。其中作为黑白图像的像素点的发光二极管120的排布方式也不限于矩阵形式，还可以为其他排布方式，例如，为菱形、三角形以及其他排布形式，这里不做限定。
本实施例还提供了一种双面显示装置，该双面显示装置包括上述显示模组，双面显示装置通过采用上述的显示模组来进行双面显示。双面显示装置可以为手机、平板电脑、笔记本电脑、显示器等电子设备。
以双面显示装置为手机为例，第一显示面2位于手机的正面，第二显示面3位于手机的背面。当手机处于正常工作模式时，通过第一驱动电路4驱动第一显示面2对手机的画面进行显示，此时，光源12的亮度较高，整个手机的功耗较大。当手机处于待机模式即第一显示面2不显示时，若手机接收到短信、邮件等需要提示性消息时，可以通过第二显示面3对这些消息进行提示，通过第二驱动电路5控制多个发光二极管120的亮与暗来对短信、邮件等消息进行提示，此时，光源12的亮度较低，整个手机的功耗较低，避免了第一显示面2频繁开启与关闭造成手机续航能力较差，从而在实现双面显示的同时降低整个手机的功耗、提升手机的续航能力和用户体验。
实施例2
本实施例中的第二显示面3也为液晶显示面板。
参照图5、图6，具体地，背光模组1还包括设于透明基板11与第二增亮膜14之间的扩散片16和导光板17，导光板17位于透明基板11与扩散片16之间。第二显示面3包括下偏光片31、TFT阵列基板32、液晶层33、CF基板34、上偏光片35、胶层36以及盖板37。盖板37作为第二显示面3的最外层对第二显示面3进行保护，液晶层33位于下偏光片31与盖板37之间，TFT阵列基板32位于液晶层33与下偏光片31之间，上偏光片35位于液晶层33与盖板37之间，CF基板34位于液晶层33与上偏光片35之间，胶层36位于上偏光片35与盖板37之间。光源12朝向第一显示面2发出的光线作为第一显示面2的背光，光源12朝向第二显示面3发出的光线作为第二显示面3的背光。
本实施例中的第一显示面2和第二显示面3均可以对彩色图像进行显示，通过第一驱动电路4和第二驱动电路5分别驱动第一显示面2和第二显示面3对不同的图像进行显示，当然，本实施例中的第一显示面2和第二显示面3可以通过同一个驱动电路来对同样的图像进行显示。
以上所述仅是本申请的具体实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。

Claims (10)

1.一种显示模组，其特征在于，包括背光模组、第一显示面以及第二显示面，所述第一显示面为液晶显示面板，所述背光模组设于所述第一显示面和所述第二显示面之间，所述背光模组包括透明基板、光源及光学膜片组，所述光源设于所述基板朝向所述光学膜片组的一面，所述光学膜片组位于所述光源与所述第一显示面之间。
2.根据权利要求1所述的显示模组，其特征在于，还包括第一驱动电路，所述第一驱动电路用于驱动所述第一显示面进行图像显示。
3.根据权利要求2所述的显示模组，其特征在于，所述光源为发光二极管阵列，所述发光二极管阵列包括呈矩阵排列的多个发光二极管。
4.根据权利要求3所述的显示模组，其特征在于，所述发光二极管阵列的每一行上的发光二极管的个数、每一列上的发光二极管的个数均不少于10。
5.根据权利要求3所述的显示模组，其特征在于，所述第二显示面为透明面板，所述显示模组还包括第二驱动电路，所述第二驱动电路用于控制多个发光二极管的开/关，以在所述第二显示面呈现黑白图像。
6.根据权利要求1所述的显示模组，其特征在于，所述光学膜片组包括扩散片和第一增亮膜，所述扩散片设于所述第一增亮膜与所述光源之间。
7.根据权利要求6所述的显示模组，其特征在于，所述背光模组还包括第二增亮膜，所述第二增亮膜设于所述透明基板与所述第二显示面之间。
8.根据权利要求7所述的显示模组，其特征在于，所述第一增亮膜和所述第二增亮膜均为棱镜片。
9.根据权利要求1所述的显示模组，其特征在于，所述背光模组还包括导光板，所述导光板位于所述光源与所述光学膜片组之间。
10.一种双面显示装置，其特征在于，包括如权利要求1-9任一所述的显示模组。
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