CN110083280A - 具电磁感应功能之触控面板 - Google Patents

具电磁感应功能之触控面板 Download PDF

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CN110083280A
CN110083280A CN201910344287.2A CN201910344287A CN110083280A CN 110083280 A CN110083280 A CN 110083280A CN 201910344287 A CN201910344287 A CN 201910344287A CN 110083280 A CN110083280 A CN 110083280A
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layer
touch panel
electromagnetic
electromagnetic induction
light emitting
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林柏荣
李炫运
李璟林
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Interface Optoelectronics Shenzhen Co Ltd
Cheng Cheng Technology Chengdu Co Ltd
General Interface Solution Ltd
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Interface Optoelectronics Shenzhen Co Ltd
Cheng Cheng Technology Chengdu Co Ltd
General Interface Solution Ltd
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Priority to CN201910344287.2A priority Critical patent/CN110083280A/zh
Priority to TW108114863A priority patent/TWI684123B/zh
Priority to US16/426,704 priority patent/US10860149B2/en
Publication of CN110083280A publication Critical patent/CN110083280A/zh
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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
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Abstract

本发明为一种具电磁感应功能之触控面板，包括：一发光二极管背光层、一电磁天线、一显示面板层、一触控面板层以及一保护层。该发光二极管背光层具有复数发光二极管单元。该电磁天线设置于该发光二极管背光层，用以发出一交流电磁场以及接收一共振讯号。该显示面板层设置于该发光二极管背光层上。该触控面板层设置于该显示面板层上，用以进行电容式触控。以及该保护层设置于该触控面板层上，用以提供一电磁笔进行电磁式触控，该电磁笔用以接收该交流电磁场后，再发出该共振讯号。

Description

具电磁感应功能之触控面板
技术领域
本发明为一种触控面板，尤指一种减少天线层来达到降低制造成本以及产品厚度的具电磁感应功能之触控面板。
背景技术
按，电磁式触控面板虽然其成本较高，但其具有反应灵敏、透光率高、分辨率高、环境耐受力高以及具备Z轴感应能力，且可以用来进行手写识别、绘图而不需要触碰到屏幕即可触控等等优点。现今虽然因为价格因素无法深入到一般社会大众被使用，却在工业计算机领域中有着许多的应用。
电磁感测其原理是由天线层发射交流的电磁场，而电磁笔内具有共振电路。当电磁笔接收到天线层所发射的交流电磁场能量后，由电磁笔与交流电磁场讯号达到共振，天线层再度接收到共振讯号来计算笔触位置。现有架构下，天线层与电磁笔有着双线天线，且天线层下方必须放置金属层以屏蔽讯号。
然而，现有以次毫米发光二极管(Mini LED)背光触控模块搭载电磁笔功能的架构下，具有整体厚度偏厚、制作成本昂贵等问题。
是以，要如何解决上述习用之问题与缺失，即为本发明之发明人与从事此行业之相关厂商所亟欲研究改善之路径所在者。
发明内容
故，本发明之发明人有鉴于上述缺失，乃搜集相关资料，经由多方评估及考虑，并以从事于此行业累积之多年经验，经由不断试作及修改，始设计出此种发明专利者。
本发明之目的在于提供一种减少天线层来达到降低制造成本以及产品厚度的具电磁感应功能之触控面板。
为了达到上述或其他目的，本创作一种具电磁感应功能之触控面板，包括：一发光二极管背光层，具有复数发光二极管单元；一电磁天线，设置于该发光二极管背光层，用以发出一交流电磁场以及接收一共振讯号；一显示面板层，设置于该发光二极管背光层上；一触控面板层，设置于该显示面板层上，用以进行电容式触控；以及一保护层，设置于该触控面板层上，用以提供一电磁笔进行电磁式触控，该电磁笔用以接收该交流电磁场后，再发出该共振讯号。
在一较佳实施例中，其中该复数发光二极管单元以阵列形式排列于该发光二极管背光层上。
在一较佳实施例中，其中该复数发光二极管单元为次毫米发光二极管(Mini LED)单元。
在一较佳实施例中，其中该电磁天线设置于该发光二极管背光层上。
在一较佳实施例中，其中该电磁天线设置于该发光二极管背光层内部。
在一较佳实施例中，其中该电磁天线设置于该复数发光二极管单元之间，并且该复数发光二极管单元之间具有一间距，该电磁天线具有一线宽，该间距的宽度大于该线宽的宽度。
在一较佳实施例中，其中该复数发光二极管单元为直流驱动。
在一较佳实施例中，其中该显示面板层为液晶显示面板。
附图说明
图1为依据本发明具电磁感应功能之触控面板较佳实施例之立体分解图；
图2为依据本发明具电磁感应功能之触控面板较佳实施例之局部示意图一；以及
图3为依据本发明具电磁感应功能之触控面板较佳实施例之局部示意图二。
附图标记：
1 发光二极管背光层
11 发光二极管单元
12 电磁天线
2 显示面板层
3 触控面板层
4 保护层
5 电磁笔
d 间距
w 线宽
具体实施方式
为达成上述目的及功效，本发明所采用之技术手段及构造，兹绘图就本发明较佳实施例详加说明其特征与功能如下，俾利完全了解。
请参阅图1、2以及3所示，为依据本发明具电磁感应功能之触控面板较佳实施例之立体分解图、局部示意图一以及二。由图中可清楚看出，本发明一种具电磁感应功能之触控面板，包括：一发光二极管背光层1、一电磁天线12、一显示面板层2、一触控面板层3以及一保护层4。
该发光二极管背光层1具有复数发光二极管单元11，于本实施例中，该复数发光二极管单元11以阵列形式排列于该发光二极管背光层1上，并且该复数发光二极管单元11为次毫米发光二极管(Mini LED)单元。
该电磁天线12设置于该发光二极管背光层1，用以发出一交流电磁场以及接收一共振讯号。于本实施例中，该电磁天线12设置于该发光二极管背光层1上。但若该发光二极管背光层1设置为多层板，该电磁天线12也可以设置于该发光二极管背光层1内部，也就是说，该电磁天线12与该复数发光二极管单元11可以不用为同一层。本发明并不限制该电磁天线12设置于该发光二极管背光层1的位置。
其中，该电磁天线12设置于该复数发光二极管单元11之间，并且该复数发光二极管单元11之间具有一间距d，该电磁天线12具有一线宽w，该间距d的宽度大于该线宽w的宽度。
该显示面板层2设置于该发光二极管背光层1上。所谓的显示面板层2用以显示画面，于本实施例中，该显示面板层2为液晶显示面板，但不限于此。
该触控面板层3设置于该显示面板层2上，用以进行电容式触控。于本实施例中，该触控面板层3可以感测使用者进行电容式触控的位置。
该保护层4设置于该触控面板层3上，用以提供一电磁笔5进行电磁式触控，该电磁笔5用以接收该交流电磁场后，再发出该共振讯号。且该保护层4用以保护本发明具电磁感应功能之触控面板，而可令使用者进行电容式触控以及电磁式触控。
藉由上述之结构、组成设计，兹就本发明之使用作动情形说明如下：当使用者欲利用电磁笔5进行电磁式触控时，可在该保护层4上进行移动。此时，该电磁笔5可接收该电磁天线12所发出的该交流电磁场，该电磁笔5接收到该交流电磁场讯号之后，由电磁笔5与该交流电磁场达到共振并发出该共振讯号，再由该电磁天线12接收该共振讯号以计算电磁笔5的笔触位置。
本发明以次毫米发光二极管(Mini LED)背光触控模块搭载电磁笔5功能作为实施例，利用次毫米发光二极管以阵列排列的特性，在发光二极管背光层1上多余空间布局电磁天线12来达到减少制作电磁天线层的厚度及成本，且其布局也能取消金属屏蔽(Shielding)层的需求。
另外，本发明该复数发光二极管单元11为直流驱动，可以避免干扰电磁笔5的天线讯号。
故，请参阅全部附图所示，本发明使用时，与习用技术相较，着实存在下列优点：本发明具电磁感应功能之触控面板可减少天线层来达到降低制造成本以及产品厚度优势。
透过上述之详细说明，即可充分显示本发明之目的及功效上均具有实施之进步性，极具产业之利用性价值，且为目前市面上前所未见之新发明，完全符合发明专利要件，爰依法提出申请。唯以上所述仅为本发明较佳的实施例，并非因此限制本发明的实施方式及保护范围，对于本领域技术人员而言，应当能够意识到凡运用本发明说明书及图示内容所作出的等同替换和显而易见的变化所得到的方案，均应当包含在本发明的保护范围内。

Claims (8)

1.一种具电磁感应功能之触控面板，其特征在于，包括：
一发光二极管背光层，具有复数发光二极管单元；
一电磁天线，设置于该发光二极管背光层，用以发出一交流电磁场以及接收一共振讯号；
一显示面板层，设置于该发光二极管背光层上；
一触控面板层，设置于该显示面板层上，用以进行电容式触控；以及
一保护层，设置于该触控面板层上，用以提供一电磁笔进行电磁式触控，该电磁笔用以接收该交流电磁场后，再发出该共振讯号。
2.如权利要求1所述之具电磁感应功能之触控面板，其中该复数发光二极管单元以阵列形式排列于该发光二极管背光层上。
3.如权利要求1所述之具电磁感应功能之触控面板，其中该复数发光二极管单元为次毫米发光二极管单元。
4.如权利要求1所述之具电磁感应功能之触控面板，其中该电磁天线设置于该发光二极管背光层上。
5.如权利要求1所述之具电磁感应功能之触控面板，其中该电磁天线设置于该发光二极管背光层内部。
6.如权利要求1所述之具电磁感应功能之触控面板，其中该电磁天线设置于该复数发光二极管单元之间，并且该复数发光二极管单元之间具有一间距，该电磁天线具有一线宽，该间距的宽度大于该线宽的宽度。
7.如权利要求1所述之具电磁感应功能之触控面板，其中该复数发光二极管单元为直流驱动。
8.如权利要求1所述之具电磁感应功能之触控面板，其中该显示面板层为液晶显示面板。
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