CN102749770A - 一种集成NFC天线的TP On/In Cell型薄膜晶体管显示器 - Google Patents

一种集成NFC天线的TP On/In Cell型薄膜晶体管显示器 Download PDF

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CN102749770A
CN102749770A CN2012102326139A CN201210232613A CN102749770A CN 102749770 A CN102749770 A CN 102749770A CN 2012102326139 A CN2012102326139 A CN 2012102326139A CN 201210232613 A CN201210232613 A CN 201210232613A CN 102749770 A CN102749770 A CN 102749770A
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nfc antenna
thin film
film transistor
display screen
transistor monitor
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CN102749770B (zh
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李建华
陈学彬
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Truly Opto Electronics Ltd
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Truly Industrial Shanwei Co Ltd
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Priority to PCT/CN2013/071439 priority patent/WO2013149517A1/zh
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Abstract

本发明涉及近场通信技术，具体公开一种集成NFC天线的薄膜晶体管显示器，其为TP On Cell型薄膜晶体管显示器或TP In Cell型薄膜晶体管显示器，该NFC天线设置于该薄膜晶体管显示器的显示屏上，其中的NFC接口搭载该显示屏的输出线路，并连接到该显示屏的控制主板上。本发明将显示屏和NFC天线功能合二为一，其将NFC天线直接做在薄膜晶体管显示器上，可避免NFC天线接口磨损、对位不准引起的信号质量变差、接收失灵问题。另外，为方便从显示器显示面和触摸面接收NFC信号，或必须从显示器显示面和触摸面接收NFC信号时提供解决方案。

Description

一种集成NFC天线的TP On/In Cell型薄膜晶体管显示器
本发明要求申请人信利半导体有限公司于2012年04月06日提出的申请号为“201220145136.8”、名称为“一种显示屏”的中国专利申请的优先权，其全部内容结合于本发明之中。 
技术领域
本发明涉及近场通信技术领域，尤其涉及一种集成NFC天线的薄膜晶体管显示器，尤其适应于TP On Cell型薄膜晶体管显示器或TP In Cell型薄膜晶体管显示器。 
背景技术
NFC(Near Field Communication，近场通信)技术是今后电子产品的一种必备技术，市场庞大。现有NFC产品的天线主要是做在电池的某一面，或者贴在外壳的里面，采用的方式一般为在PCB(Printed Circuit Board，印刷电路板)或FPC(Flexible Printed Circuit，软性线路板)上，以金属走线做成线圈，然后将此含有线圈的PCB板或FPC贴在电池或者外壳上。其缺点主要有：电池与外壳经常反复拆装，这样就使得NFC天线的接线处容易磨损或者出现对位不准的问题，最终造成天线信号变差，影响NFC产品功能的使用。另外，NFC产品的天线，一般位于电子产品的外壳里面，如果选择金属材料做外壳，会影响NFC信号的传播，限制了电子产品外壳在选材时，选择坚固的金属材料。 
例如，很多装配有NFC天线和薄膜晶体管显示器(Thin film transistor liquid crystal display，常简称为TFT-LCD)的电子产品就存在上述问题。其中TFT-LCD使用薄膜晶体管技术改善影象品质，是一种主动式矩阵LCD，被应用在电视、平面显示器及投影机上，TFT-LCD面板可视为两片玻璃基板中间夹着一层液晶，上层的玻璃基板是与彩色滤光片(Color Filter)、而下层的玻璃则有晶体管镶嵌于其上。 当电流通过晶体管时产生电场变化，造成液晶分子偏转，藉以改变光线的偏极性，再利用偏光片决定画素(Pixel)的明暗状态。此外，上层玻璃因与彩色滤光片贴合，形成每个画素(Pixel)各包含红蓝绿三颜色，这些发出红蓝绿色彩的画素便构成了面板上的影像画面。 
对于薄膜晶体管显示器而言，相对于将触摸面板设置在液晶面板上使用的原有方法，触摸面板功能与液晶面板一体化的研究日渐盛行。触摸面板和液晶面板的一体化包括“In-cell“方法和“On-cell”两种方法，其中：In-cell是指将触摸面板功能嵌入到液晶像素中的方法，一种方式是集成TFT Array(TFT阵列)层与TP Sensor(触摸传感)层；On-cell是指将触摸面板功能嵌入到彩色滤光片基板和偏光板之间的方法，TFT Array层与TPS ensor层是分离的，目前已成为流行趋势。 
鉴于装配有NFC天线和薄膜晶体管显示器的电子产品NFC天线设置方式不尽合理，其接线处容易磨损或者对位不准，由此造成天线信号质量变差的问题。并且限制了电子产品的外壳选择范围，而生产薄膜晶体管显示器过程中，具备集成NFC天线的能力，有必要设计一种新的集成了NFC天线的薄膜晶体管显示器，以解决上述问题。 
发明内容
有鉴于此，本发明目的在于提供一种集成NFC天线的薄膜晶体管显示器，可防止天线接线处磨损或者对位不准，有利于保证天线信号的质量。另外，装配了上述的TFT-LCD的电子产品，从显示器的正面传递信号，在选择外壳选材时，不受NFC天线的限制。 
为解决以上技术问题，本发明提供的技术方案是：一种集成NFC天线的薄膜晶体管显示器，其为TP On Cell型薄膜晶体管显示器或TP In Cell型薄膜晶体管显示 器，该NFC天线设置于该薄膜晶体管显示器的显示屏上，其中的NFC接口搭载该显示屏的输出线路，并连接到该显示屏的控制主板上。 
优选地，为TP On Cell型薄膜晶体管显示器，该显示屏依次包括上基板、触摸传感层、彩色滤光层、透明导电层、液晶层、TFT阵列及下基板，该NFC天线连接至该TFT阵列。 
优选地，该NFC天线设置在该上基板的内侧表面上，并通过导电材料搭载到该显示屏的输出线路，以输出到该显示屏的控制主板。 
优选地，该上基板的内侧表面四周印刷油墨层，该NFC天线设置在该油墨层的区域上。 
优选地，该NFC天线设置在该上基板的外侧表面上，且覆盖绝缘保护层，并通过导电材料搭载到该显示屏的输出线路，以输出到该显示屏的控制主板。 
优选地，为TP On Cell型薄膜晶体管显示器，该显示屏依次包括上基板、彩色滤光层、透明导电层、液晶层、TFT阵列、触摸传感层及下基板，该NFC天线连接至该TFT阵列。 
该NFC天线设置在该下基板的外侧表面上，且覆盖绝缘保护层，并通过导电材料搭载到该显示屏的输出线路，以输出到该显示屏的控制主板。 
优选地，为TP In Cell型薄膜晶体管显示器，该显示屏依次包括上基板、彩色滤光层、透明导电层、液晶层、集成触摸传感层的TFT阵列及下基板，该NFC天线连接至该TFT阵列。 
优选地，该NFC天线设置在该下基板与集成触摸传感层的TFT阵列之间，并位于该TFT阵列的四周区域，并通过导电材料搭载到该显示屏的输出线路，以输出 到该显示屏的控制主板。 
优选地，该NFC天线为以导电材料走线方式制成多匝线圈。 
优选地，该NFC天线采用银、铜、铝类低电阻率走线。 
优选地，该NFC天线与产品外轮廓线相匹配环形绕制。 
优选地，该多匝线圈呈矩形绕制该多匝线圈呈矩形绕制或圆形绕制。 
优选地，在该多匝线圈偏显示器内部的一面覆盖一层透明的铁氧体材料。 
与现有技术相比，本发明集成NFC天线的薄膜晶体管显示器将NFC天线直接做在薄膜晶体管显示器上，由于NFC接口是搭载显示屏的输出线路，其连接到控制主板上，安装后是固定不动的，不经常拆装，避免了现有技术中NFC天线由于接口磨损及对位不准引起的信号质量变差、接收失灵等问题。另外，为方便从显示器显示面接收NFC信号，或必须从显示器显示面接收NFC信号时提供解决方案。另外，为方便从显示器显示面和触摸面接收NFC信号，或必须从显示器显示面和触摸面接收NFC信号时提供解决方案。此外，装配了上述的TFT-LCD的电子产品，从显示器的正面传递信号，在选择外壳选材时，不受NFC天线的限制。 
附图说明
图1a是本发明集成NFC天线的薄膜晶体管显示器实施例一的NFC天线在显示屏上的安装位置正视图； 
图1b是本发明集成NFC天线的薄膜晶体管显示器实施例一的结构示意图； 
图2是本发明集成NFC天线的薄膜晶体管显示器实施例二的结构示意图； 
图3是本发明集成NFC天线的薄膜晶体管显示器实施例三的结构示意图； 
图4是本发明集成NFC天线的薄膜晶体管显示器实施例四的结构示意图。 
图1a～图4中，有关附图标记为： 
1、上基板；2、油墨层；3、NFC天线；4、触摸传感层；5、彩色滤光层；6、ITO层；7、液晶层、8、TFT阵列；9、下基板；10、导电银浆；11、绝缘保护层。 
具体实施方式
本发明的基本构思是，NFC天线设置于该薄膜晶体管显示器的显示屏上，其中的NFC接口搭载该显示屏的输出线路，并连接到该显示屏的控制主板上。 
为了使本领域的技术人员更好地理解本发明的技术方案，下面结合附图和具体实施例对本发明作进一步的详细说明。 
以下实施例中，图1a～图3为TP On Cell型薄膜晶体管显示器，其TFT Array层与TP Sensor层分离；图4为TP In Cell型薄膜晶体管显示器，其TFT Array层与TP Sensor层集成在一起；以下分别进行说明。 
同时参见图1a、图1b，表示本发明集成NFC天线的薄膜晶体管显示器实施例一的NFC天线安装结构。该集成NFC天线的薄膜晶体管显示器的显示屏S，为可多点触控的电容屏或电阻屏，其自上往下依次包括上基板1、触摸传感层(TP Sensor)4、彩色滤光层(Color Filter)5、ITO(氧化铟锡)层(或其它透明导电层)6、液晶层7、TFT阵列(TFT Array)8及下基板9，其中上基板1的内侧表面四周印刷油墨层2，NFC天线3设置在该油墨层2的区域上，该NFC天线3连接至该TFT阵列8。 
其中NFC天线3的具体位置如图1b所示，该NFC天线3设置于该上基板1和该触摸传感层4之间，具体是NFC天线设置在上基板1的内侧表面上并，并通过 导电材料搭载到该显示屏的输出线路，以输出到该显示屏的控制主板。该NFC天线3以金属(银、铜、铝)或其它低阻率导电材料走线的方式做成多匝线圈，具体是呈矩形绕制，或圆形绕制，或其它与显示器产品外形轮廓相匹配的环形绕制；其中在该多匝线圈偏显示器内部的一面上加有(覆盖)一层透明的铁氧体材料，以增强磁场感应强度。这种走线方式，采用现有设备上就可以做到，不用新增投资。 
实施例二 
参见图2，表示本发明集成NFC天线的薄膜晶体管显示器实施例二的结构。同样为TP On Cell型薄膜晶体管显示器，其中，NFC天线3设置在该上基板1的外侧表面上，且覆盖绝缘保护层11，并通过导电银浆5或其它导电材料搭载到该显示屏的输出线路，以输出到该显示屏的控制主板。其它结构与实施例一相同，不再赘述。 
实施例三 
参见图3，表示本发明集成NFC天线的薄膜晶体管显示器实施例三的结构。该实施例为TP On Cell型薄膜晶体管显示器，该显示屏依次包括上基板1、彩色滤光层5、ITO层6、液晶层7、TFT阵列8、触摸传感层4及下基板9，该NFC天线3连接至该TFT阵列8。其中，NFC天线3设置在下基板9的外侧表面上，且覆盖绝缘保护层11，并通过导电银浆10或其它导电材料搭载到该显示屏的输出线路，以输出到该显示屏的控制主板。其它结构与实施例一、二所述的TP On Cell型薄膜晶体管显示器相同，不再赘述。 
实施例四 
参见图4，表示本发明集成NFC天线的薄膜晶体管显示器实施例四的结构。该实施例为TP In Cell型薄膜晶体管显示器，该显示屏依次包括上基板1、彩色滤光层 5、ITO层6、液晶层7、集成触摸传感层4的TFT阵列8及下基板9，该NFC天线3连接至该TFT阵列8。其中，该NFC天线3设置在该下基板9与集成触摸传感层的TFT阵列之间，并位于该TFT阵列8的四周区域并通过导电材料搭载到该显示屏的输出线路，以输出到该显示屏的控制主板。其它结构与实施例三相同，不再赘述。 
此外，以上实施例均设有与该NFC天线3电连接的天线匹配电路(图未示出)，该天线匹配电路包括充放电模块和抗阻模块，该充放电模块与该抗阻模块相连，其中：该充放电模块为并联或串联的电容；该抗阻模块为并联或串联电阻。由此，通过设置天线匹配电路，实现NFC天线3的功率匹配。 
本发明的以上实施例将NFC天线3直接做在薄膜晶体管显示器上，其NFC接口是搭载显示屏的输出线路，连接到控制主板(图未示出)上，安装后是固定不动，不经常拆装，避免了现有技术中NFC天线由于接口磨损及对位不准引起的信号接收失灵等问题。另外，为方便从显示器显示面和触摸面接收NFC信号，或必须从显示器显示面和触摸面接收NFC信号时提供解决方案。此外，装配了上述的TFT-LCD的电子产品，从显示器的正面传递信号，在选择外壳选材时，不受NFC天线的限制。 
本发明这种集成了NFC天线的薄膜晶体管显示器，将显示屏和NFC天线功能合二为一，在市场上更有竞争力。 
以上仅是本发明的优选实施方式，应当指出的是，上述优选实施方式不应视为对本发明的限制，本发明的保护范围应当以权利要求所限定的范围为准。对于本技术领域的普通技术人员来说，在不脱离本发明的精神和范围内，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。 

Claims (14)

1.一种集成NFC天线的薄膜晶体管显示器，其为TP On Cell型薄膜晶体管显示器或TP In Cell型薄膜晶体管显示器，其特征在于，该NFC天线设置于该薄膜晶体管显示器的显示屏上，其中的NFC接口搭载该显示屏的输出线路，并连接到该显示屏的控制主板上。
2.如权利要求1所述的集成NFC天线的薄膜晶体管显示器，其特征在于，为TP On Cell型薄膜晶体管显示器，该显示屏依次包括上基板、触摸传感层、彩色滤光层、透明导电层、液晶层、TFT阵列及下基板，该NFC天线连接至该TFT阵列。
3.如权利要求2所述的集成NFC天线的薄膜晶体管显示器，其特征在于，该NFC天线设置在该上基板与触膜传感层之间，并通过导电材料搭载到该显示屏的输出线路，以输出到该显示屏的控制主板。
4.如权利要求3所述的集成NFC天线的薄膜晶体管显示器，其特征在于，该上基板的内侧表面四周印刷油墨层，该NFC天线设置在该油墨层的区域上。
5.如权利要求2所述的集成NFC天线的薄膜晶体管显示器，其特征在于，该NFC天线设置在该上基板的外侧表面上，且覆盖绝缘保护层，并通过导电材料搭载到该显示屏的输出线路，以输出到该显示屏的控制主板。
6.如权利要求1所述的集成NFC天线的薄膜晶体管显示器，其特征在于，为TP On Cell型薄膜晶体管显示器，该显示屏依次包括上基板、彩色滤光层、透明导电层、液晶层、TFT阵列、触摸传感层及下基板，该NFC天线连接至该TFT阵列。
7.如权利要求6所述的集成NFC天线的薄膜晶体管显示器，其特征在于，该NFC天线设置在该下基板与触控传感层之间，并通过导电材料搭载到该显示屏的输出线路，以输出到该显示屏的控制主板。
8.如权利要求6所述的集成NFC天线的薄膜晶体管显示器，其特征在于，该NFC天线设置在该下基板的外侧表面上，且覆盖绝缘保护层，并通过导电材料搭载到该显示屏的输出线路，以输出到该显示屏的控制主板。
9.如权利要求1所述的集成NFC天线的薄膜晶体管显示器，其特征在于，为TP In Cell型薄膜晶体管显示器，该显示屏依次包括上基板、彩色滤光层、透明导电层、液晶层、集成触摸传感层的TFT阵列及下基板，该NFC天线连接至该TFT阵列。
10.如权利要求9所述的集成NFC天线的薄膜晶体管显示器，其特征在于，该NFC天线设置在该下基板与集成触摸传感层的TFT阵列之间，并位于该TFT阵列的四周区域，并通过导电材料搭载到该显示屏的输出线路，以输出到该显示屏的控制主板。
11.如权利要求9所述的集成NFC天线的薄膜晶体管显示器，其特征在于，该NFC天线设置在该下基板的外侧表面上，且覆盖绝缘保护层，并通过导电材料搭载到该显示屏的输出线路，以输出到该显示屏的控制主板。
12.如权利要求1所述的集成NFC天线的薄膜晶体管显示器，其特征在于，该NFC天线为以导电材料走线方式制成多匝线圈。
13.如权利要求12所述的集成NFC天线的薄膜晶体管显示器，其特征在于，该多匝线圈呈与产品外轮廓线相匹配环形绕制。
14.如权利要求12～13任一项所述的集成NFC天线的薄膜晶体管显示器，其特征在于，在该多匝线圈偏显示器内部的一面覆盖一层透明的铁氧体材料。
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