CN102819346B - 一种集成nfc天线的触摸屏 - Google Patents

一种集成nfc天线的触摸屏 Download PDF

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CN102819346B
CN102819346B CN201210232612.4A CN201210232612A CN102819346B CN 102819346 B CN102819346 B CN 102819346B CN 201210232612 A CN201210232612 A CN 201210232612A CN 102819346 B CN102819346 B CN 102819346B
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touch
screen
nfc antenna
integrated
nfc
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CN201210232612.4A
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CN102819346A (zh
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李建华
陈学彬
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信利工业(汕尾)有限公司
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    • HELECTRICITY
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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天线的触摸屏,该NFC天线设置于该触摸屏上,该NFC天线连接到带控制芯片的主板上。本发明将NFC天线直接做在触摸屏上,将触控功能和NFC天线功能合二为一,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,同时也有利于天线接收和发送信号,保证通信的通畅。另外,为方便从触摸屏触摸面接收NFC信号,或必须从触摸屏触摸面接收NFC信号时提供解决方案。

Description

一种集成NFC天线的触摸屏

[0001] 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

[0002] 本发明涉及近场通信技术领域,尤其涉及一种集成NFC天线的触摸屏。

背景技术

[0003] NFC (Near Field Communicat1n,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,采用白勺方式一般为在 PCB(Printed Circuit Board,印刷电路板)或 FPC(Flexible PrintedCircuit,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。另夕卜,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。

[0004] 例如,很多装配有NFC天线和触摸屏(Touch Screen)的电子产品就存在以上问题。其中触摸屏又称为“触控屏”、“触控面板”,是一种可接收触头等输入讯号的感应式液晶显示装置,工作时,首先用手指或其它物体触摸安装在显示器前端的触摸屏,然后系统根据手指触摸的图标或菜单位置来定位选择信息输入。触摸屏由触摸检测部件和触摸屏控制器组成;触摸检测部件安装在显示器屏幕前面,用于检测用户触摸位置,接受后送触摸屏控制器;而触摸屏控制器的主要作用是从触摸点检测装置上接收触摸信息、,并将它转换成触点坐标,再送给CPU,它同时能接收CPU发来的命令并加以执行。

[0005] 现有装配有NFC天线和触摸屏的电子产品的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,而生产触摸屏的过程中,具备集成NFC天线的能力,有必要设计一种新的集成了 NFC天线的触摸屏,以解决上述问题。

发明内容

[0006] 有鉴于此,本发明目的在于提供一种集成NFC天线的触摸屏,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,装配了上述的触摸屏的电子产品,从触控面传递信号,在选择外壳选材时,不受NFC天线的限制。

[0007] 为解决以上技术问题,本发明所提供的技术方案是:一种集成NFC天线的触摸屏,该NFC天线设置于该触摸屏上,该NFC天线连到带控制芯片的主板上。

[0008] 较优地,该触摸屏包括触控玻璃和触控传感器,该触控玻璃和触控传感器为分离的“Lens+TP Sensor”结构或融为一体的0GS结构;该NFC天线设置于该触控玻璃上,并通过该触控传感器通到该触摸屏的输出引线上,或直接导通到该触摸屏的输出引线上。

[0009] 较优地,该NFC天线设置于该触控玻璃与触控传感器之间,且在四周边框处。

[0010] 较优地,该触控玻离内侧表面的四周边框位置印刷油墨,形成触摸屏黑色边框不透光部。

[0011] 较优地,该NFC天线设置于该触控玻璃外侧表面的四周边框处,且覆盖绝缘保护膜;或者,该NFC天线设置于该触控传感器外侧表面的四周边框处,且覆盖绝缘保护膜。

[0012] 较优地,该NFC天线通过导电材料与该触控传感器电连接后导通到输出引线,或直接导通到输出引线。

[0013] 较优地,该NFC天线为以导电材料走线方式制成的多匝线圈。

[0014] 较优地,该NFC天线采用银、铜、铝或其它低电阻率走线。

[0015] 较优地,该多匝线圈呈与产品外轮廓线相匹配环形绕制。

[0016] 较优地,该多匝线圈呈矩形绕制或圆形绕制。

[0017] 较优地,在该多匝线圈偏触摸屏内部的一面覆盖一层透明的铁氧体材料。

[0018]与现有技术相比,本发明集成NFC天线的触摸屏将NFC天线直接做在触摸屏上,将触控和NFC天线功能合二为一。因为触摸屏是现今电子产品尤其是手机产品的必备部分,且触摸屏处于电子产品的最外层,有利于天线接收和发送信号。由于触摸屏本身是一个不需要拆装的部件,这样使得NFC天线在使用过程中避免了现有技术中的接口磨损和对位不准等问题。另外,为方便从触摸屏触摸面接收NFC信号,或必须从触摸屏触摸面接收NFC信号时提供解决方案。此外,装配了上述的触摸屏的电子产品,从触控面传递信号,在选择外壳选材时,不受NFC天线的限制。

附图说明

[0019] 图1是本发明集成NFC天线的触摸屏实施例一中NFC天线在TFT显示屏上的安装位置正视图;

[0020]图2是本发明集成NFC天线的触摸屏实施例的NFC天线安装结构侧视图。

[0021]图3是本发明集成NFC天线的触摸屏实施例二的NFC天线安装结构侧视图;

[0022]图4是本发明集成NFC天线的触摸屏实施例三的NFC天线安装结构侧视图;

[0023] 图1〜图4中,有关附图标记为:

[0024] 100、触摸屏;101、触控玻璃;102、油墨层;103、NFC天线;105、绝缘保护膜;106、

触控传感器。

具体实施方式

[0025] 本发明的基本构思是,NFC天线设置于该触摸屏的四周边框处,该NFC天线连接带控制芯片的主板上。

[0026] 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。

[0027] 实施例一

[0028] 同时参见图1、图2,表不本发明集成NFC天线的触摸屏一较优实施例的NFC天线安装结构。该集成NFC天线的触摸屏(TP) 100为多点触控的电容屏或电阻屏,它自人眼方向自上往下看包括触控玻璃(TPLens)lOl和触控传感器(TP Sensor) 106,其中:NFC天线103设置于触控玻璃101与触控传感器106之间,且在四周边框处;NFC天线103与该触控传感器106电连接,之后通过该触控传感器106导通到该触摸屏100的输出引线上,也可直接导通到该触摸屏100的输出引线上。本实施例中,触控玻璃101和触控传感器106为分离的两层(Lens+TP Sensor”结构),当然也可由融为一体的一层结构(0GS结构)代替,不再赘述。

[0029] 如图1、图2所示,触控玻璃101内侧表面的四周边框位置印刷油墨102,形成触摸屏黑色边框不透光部;再以金属(银、铜或铝)材料或其它低电阻率导电材料(如碳)走线方式在该触摸屏黑色边框不透光部走线,制成多匝线圈式的NFC天线103。该N多匝线圈的NFC天线103,并通过导电银浆(图未示出)或其它低电阻率导电材料与触控传感层106电连接。该多匝线圈呈矩形绕制,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。

[0030] 本实施例中,设有与该NFC天线103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;该抗阻摸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103的功率匹配。

[0031] 实施例二

[0032] 参见图3,表示本发明集成NFC天线的触摸屏另一较优实施例的NFC天线安装结构。与实施例一相比,本实施例二的区别在于:该NFC天线103设置于该触控玻璃101外侧表面的四周边框处(无需印刷油墨层102,也无需导通银浆),且覆盖绝缘保护膜105,其它结构与实施例一相同,不再赘述。

[0033] 实施例三

[0034] 参见图4,表示本发明集成NFC天线的触摸屏又一较优实施例的NFC天线安装结构。与实施例二相比,本实施例三的区别在于:该NFC天线103设置于该触控玻璃101外侧表面的四周边框处,且覆盖绝缘保护膜105,其它结构与实施例二相同,不再赘述。

[0035] 本发明上述实施例中,将NFC天线直接做在触摸屏上,具有较为明显的优势:

[0036] (1)因为触摸屏是现今电子产品尤其是手机产品的必备部分,且触摸屏处于电子产品的最外层,有利于天线接收和发送信号,保证通信的通畅;

[0037] (2)由于触摸屏本身是一个不需要拆装的部件,这样使得NFC天线在使用过程中避免了现有技术中的接口磨损和对位不准等问题。

[0038] (3)另外,为方便从触摸屏触摸面接收NFC信号,或必须从触摸屏触摸面接收NFC信号时提供解决方案。

[0039] (4)此外,装配了上述的触摸屏的电子产品,从触控面传递信号,在选择外壳选材时,不受NFC天线的限制。

[0040] 本发明这种集成了 NFC天线的触摸屏,将显示屏和NFC天线功能合二为一,在市场上更有竞争力。

[0041] 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 (4)

1.一种集成NFC天线的触摸屏,其特征在于,该NFC天线设置于该触摸屏上,该NFC天线连接到带控制芯片的主板上; 该触摸屏包括触控玻璃和触控传感器,该触控玻璃和触控传感器分为不在同一衬底的分离结构或集成在同一衬底上的OGS结构;该NFC天线设置于该触控玻璃上,并通过该触控传感器导通到该触摸屏的输出引线上,或直接导通到该触摸屏的输出引线上; 该NFC天线设置于该触控玻璃与触控传感器之间,且在四周边框处; 或者,该NFC天线设置于该触控玻璃外侧表面的四周边框处,且覆盖绝缘保护膜; 或者,该NFC天线设置于该触控传感器外侧表面的四周边框处,且覆盖绝缘保护膜; 该NFC天线为以导电材料走线方式制成的多匝线圈;在该多匝线圈偏触摸屏内部的一面覆盖一层透明的铁氧体材料,以增强磁场感应强度。
2.如权利要求1所述的集成NFC天线的触摸屏,其特征在于,该触控玻璃内侧表面的四周边框位置印刷油墨,形成触摸屏黑色边框不透光部。
3.如权利要求1所述的集成NFC天线的触摸屏,其特征在于,该NFC天线通过导电材料与该触控传感器电连接后导通到输出引线,或直接导通到输出引线。
4.如权利要求1所述的集成NFC天线的触摸屏,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。
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