CN202404524U - Press-sensing structure of touch keyboard - Google Patents

Abstract

The pressing sensing structure of the touch keyboard comprises a piezoelectric touch pad and a piezoelectric vibration module, wherein: the piezoelectric touch control panel comprises a lower substrate made of a plastic material; a second conductive layer stacked on the lower substrate; the pressing structures are arranged on the second conducting layer at intervals and respectively provided with a sensing layer, a contact layer and a connecting layer, the sensing layer is superposed on the second conducting layer, the contact layer is superposed on the sensing layer, the contact layer is made of piezoresistive material or piezoelectric material, and the connecting layer is superposed on the contact layer; a first conductive layer disposed on all of the pressing structures; and an upper substrate made of plastic material and stacked on the first conductive layer; the piezoelectric vibration module comprises a micro-control unit, a converter and at least one piezoelectric vibrator, and is electrically connected with the piezoelectric touch control plate; when the resistance value or the voltage and current value in the contact layer of the pressing structure exceeds the set threshold value, a key signal and a feedback signal are generated, and the prompt effect of vibration is achieved.

Description

Translated fromChinese

触控键盘的按压感测构造Press-sensing structure of touch keyboard

技术领域technical field

本实用新型是有关于一种键盘的感测构造，特别是指一种具压电式振动模块的触控键盘的按压感测构造。The utility model relates to a sensing structure of a keyboard, in particular to a pressing sensing structure of a touch keyboard with a piezoelectric vibration module.

背景技术Background technique

近年来，触控板及触控屏幕作为指令输入工具已广泛应用于移动电话、电脑等电子产品。以触控屏幕为例，使用者可以方便地使用手接触该触控屏幕以输入指令。另外，以装设在键盘上的触控板为例，使用者可以用手指轻触触控板或是在上面滑动，以类似鼠标操作的方式，向电脑发出操作指令。In recent years, touch panels and touch screens have been widely used as command input tools in electronic products such as mobile phones and computers. Taking the touch screen as an example, the user can conveniently touch the touch screen with hand to input commands. In addition, taking the touchpad installed on the keyboard as an example, the user can lightly touch or slide on the touchpad with a finger to issue operation instructions to the computer in a manner similar to mouse operation.

触控板及触控屏幕通常有电阻式、电容式、超音波式及红外线式等多种类型，其中又以电阻式触控板的产品最多，电阻式触控板的设计主要又可区分为四线式、五线式、八线式。而四线式触控板因为成本及技术层面较为成熟等有利因素，几乎是所有触控板业者最基本的生产规格，其基本架构为一氧化铟锡导电玻璃(Indium Tin OxideGlass，ITO Glass)，一导电薄膜(ITO Film)，一般而言，氧化铟锡导电玻璃与导电薄膜导通后均使用+5V电压，及一位于二者之间的绝缘间隙子(Spacer)，其目的在于将氧化铟锡导电玻璃与导电薄膜进行支撑与分开，以避免无触摸时因导通造成短路而产生误触动作。Touch panels and touch screens usually have various types such as resistive, capacitive, ultrasonic, and infrared. Among them, resistive touch panels are the most popular. The design of resistive touch panels can be divided into two types: Four-wire, five-wire, eight-wire. The four-wire touch panel is almost the most basic production specification of all touch panel manufacturers due to favorable factors such as cost and mature technology. Its basic structure is Indium Tin Oxide Glass (ITO Glass), A conductive film (ITO Film), generally speaking, after the conduction between the indium tin oxide conductive glass and the conductive film, a +5V voltage is used, and an insulating spacer (Spacer) is located between the two, the purpose of which is to indium oxide Tin conductive glass and conductive film are supported and separated to avoid false touch action due to short circuit caused by conduction when there is no touch.

而一般电阻式触控面板是利用分别设置在上基板(包括第一导电层)的第一感测层与设置在下基板(包括第二导电层)的第二感测层之间非接触式而悬空的结构，在使用者按压时，必须使第一感测层与第二感测层接触，才会产生信号给微控单元进行后续动作，若是按压的施力太小导致第一感测层与第二感测层并未接触到，就无法发出信号给微控单元，造成无动作的现象发生，且没有反馈信号给振动器以产生提示振动，使用者可能会以为触控面板产生问题或是接触不良等，对使用者而言会认为产品有问题，对制造商而言在商誉上也容易受损。However, the general resistive touch panel uses a non-contact method between the first sensing layer respectively arranged on the upper substrate (including the first conductive layer) and the second sensing layer arranged on the lower substrate (including the second conductive layer). For the suspended structure, when the user presses, the first sensing layer must be in contact with the second sensing layer to generate a signal to the micro control unit for subsequent actions. If the pressing force is too small, the first sensing layer and the second sensing layer will If the second sensing layer is not in contact, it will not be able to send a signal to the micro-control unit, resulting in no action, and there is no feedback signal to the vibrator to generate a reminder vibration. The user may think that there is a problem with the touch panel or that there is a touch Defects, etc., users will think that there is a problem with the product, and it is easy to damage the goodwill of the manufacturer.

有鉴于此，本案发明人以其所申请并经中国台湾智慧财产局核准的中国台湾新型专利第M395206号为基础及其多年从事电脑键盘的制造及设计实务经验，而积极研究改良，并经多次实物样品制作及测试，进而具体改良现有键盘的上述缺点，终致完成本实用新型。In view of this, the inventor of this case actively researched and improved based on the Taiwan New Patent No. M395206, which he applied for and approved by the Taiwan Intellectual Property Office, and his many years of practical experience in the manufacture and design of computer keyboards. The second physical sample is produced and tested, and then the above-mentioned shortcomings of the existing keyboard are specifically improved, and the utility model is finally completed.

实用新型内容Utility model content

因此，为了解决上述问题，本实用新型目的为在于提供一种以压阻材料或压电材料的中间层作为对第一导电层与第二导电层直接进行夹层支撑，并借以发出按压信号，而不会有按压后无触动反馈信号的情况，以增进触控式键盘的使用效果。Therefore, in order to solve the above problems, the purpose of this utility model is to provide an intermediate layer of piezoresistive material or piezoelectric material as the interlayer support directly between the first conductive layer and the second conductive layer, so as to send a pressing signal, and There will be no situation of no touch feedback signal after pressing, so as to improve the use effect of the touch keyboard.

为了实现上述目的，本实用新型提出一种触控键盘的按压感测构造，其包括一压电式触控板及一压电式振动模块，其中：该压电式触控板包括一下基板，其为塑料材质所制；一第二导电层，叠置在该下基板上；若干按压结构，相互间隔地布设在该第二导电层上，各该按压结构具有一感测层、一接触层及一连接层，该感测层叠置在该第二导电层上，该接触层叠置在该感测层上，且该接触层由压阻材料或压电材料所制成，而该连接层叠置在该接触层上；一第一导电层，设置在该按压结构上；以及一上基板，其由塑料材质所制成，且叠置在该第一导电层上；而该压电式振动模块包括一微控单元、一转换器及至少一压电式振动器，该压电式振动模块与该压电式触控板电气相接。In order to achieve the above object, the utility model proposes a pressure sensing structure of a touch keyboard, which includes a piezoelectric touch panel and a piezoelectric vibration module, wherein: the piezoelectric touch panel includes a substrate, It is made of plastic material; a second conductive layer is stacked on the lower substrate; several pressing structures are arranged on the second conductive layer at intervals, and each pressing structure has a sensing layer and a contact layer and a connection layer, the sensing layer is stacked on the second conductive layer, the contact layer is stacked on the sensing layer, and the contact layer is made of piezoresistive material or piezoelectric material, and the connection layer is stacked On the contact layer; a first conductive layer arranged on the pressing structure; and an upper substrate made of plastic material and stacked on the first conductive layer; and the piezoelectric vibration module It includes a micro control unit, a converter and at least one piezoelectric vibrator, and the piezoelectric vibration module is electrically connected with the piezoelectric touch panel.

作为优选，该微控单元接收该压电式触控板的电信号后，经该转换器而启动该压电式振动器。Preferably, the micro control unit activates the piezoelectric vibrator via the converter after receiving the electrical signal from the piezoelectric touch panel.

作为优选，该压电式振动器内部具有一压电式振动片。Preferably, the piezoelectric vibrator has a piezoelectric vibrating piece inside.

作为优选，该触控键盘的按压感测构造还包括若干间隙子，其分别地设置在各该按压结构之间，且叠置在该第二导电层上，各该间隙子通过一框胶层而与该第一导电层连接。Preferably, the pressure sensing structure of the touch keyboard further includes several spacers, which are respectively arranged between each of the pressing structures and stacked on the second conductive layer, and each of the spacers passes through a sealant layer and connected to the first conductive layer.

作为优选，该触控键盘的按压感测构造还具有一底板，其叠置在该压电式触控板底部，且该底板用于组装该压电式振动模块。Preferably, the pressure sensing structure of the touch keyboard further has a bottom plate stacked on the bottom of the piezoelectric touch panel, and the bottom plate is used for assembling the piezoelectric vibration module.

作为优选，该触控键盘的按压感测构造还包括一印刷层，其设置在该上基板上，该印刷层上印制有若干键盘符号或数字。Preferably, the pressure sensing structure of the touch keyboard further includes a printing layer disposed on the upper substrate, and several keyboard symbols or numbers are printed on the printing layer.

作为优选，各该符号或数字相对应一个或一个以上的按压结构位置设置。Preferably, each of the symbols or numbers is set corresponding to one or more pressing structure positions.

作为优选，该上基板与该下基板的塑料材质为聚对苯二甲酸乙二醇脂(PET)。Preferably, the plastic material of the upper substrate and the lower substrate is polyethylene terephthalate (PET).

作为优选，该感测层由感测材质所制成。Preferably, the sensing layer is made of sensing material.

本实用新型具有如下有益效果：The utility model has the following beneficial effects:

1、使用者可直接在触控面板上的虚拟键直接输入信息，无需再连接一般的输入键盘，缩小了整体体积；1. Users can directly input information on the virtual keys on the touch panel, without connecting to a general input keyboard, which reduces the overall size;

2、与现有电阻式触控面板中两感测层之间为非接触的悬空结构相比，本实用新型触控键盘的按压感测构造的压电式触控板中的按压结构为直接与第一导电层及第二导电层接触并支撑，故可不使用或使用少量的间隙子进行上基板及下基板之间的支撑，借以降低成本，且可避免使用者因施力过小所造成无动作的状况发生，还能达到按压触控键盘的振动提示信号的效果。2. Compared with the non-contact suspension structure between the two sensing layers in the existing resistive touch panel, the pressing structure in the piezoelectric touch panel of the pressing sensing structure of the touch keyboard of the utility model is direct It is in contact with and supported by the first conductive layer and the second conductive layer, so no or a small amount of spacers can be used to support the upper substrate and the lower substrate, so as to reduce costs and prevent users from causing damage due to too small force. When no action occurs, the effect of pressing the vibration prompt signal of the touch keyboard can also be achieved.

附图说明Description of drawings

图1是本实用新型触控键盘的按压感测构造的按压感测构造的立体分解图。FIG. 1 is a three-dimensional exploded view of the pressure sensing structure of the touch keyboard of the present invention.

图2是本实用新型触控键盘的按压感测构造的按压感测构造沿图1的A-A剖线的剖视图。2 is a cross-sectional view of the pressure sensing structure of the touch keyboard of the present invention along line A-A of FIG. 1 .

图3是本实用新型触控键盘的按压感测构造的微控单元处理反馈信号的方框图。FIG. 3 is a block diagram of the feedback signal processed by the micro-control unit of the press-sensing structure of the touch keyboard of the present invention.

图4是本实用新型按压于上基板印刷层的单个字键与其相对应一个按压结构的按压状态剖视图。Fig. 4 is a sectional view of a pressing state of a single word key pressed on the printed layer of the upper substrate and its corresponding pressing structure according to the present invention.

图5是本实用新型按压于上基板印刷层中单个字键与其相对应的多个按压结构的按压状态剖视图。Fig. 5 is a cross-sectional view of multiple pressing structures corresponding to a single word key in the printed layer of the upper substrate according to the present invention.

主要附图标记说明Explanation of main reference signs

1压电式触控板1 piezo touchpad

2下基板2 lower substrate

3第二导电层3 second conductive layer

4按压结构4 Press structure

41感测层41 sensing layer

42接触层42 contact layer

43连接层43 connection layer

5第一导电层5 first conductive layer

6上基板6 upper substrate

7压电式振动模块7 Piezoelectric vibration module

71微控单元71 microcontroller unit

72转换器72 converter

73压电式振动器73 piezoelectric vibrator

731压电式振动片731 piezoelectric vibrating piece

80底板80 base plate

91间隙子91 spacers

92框胶层92 frame rubber layer

具体实施方式Detailed ways

以下结合附图对本实用新型的实施例做详细说明：Embodiment of the utility model is described in detail below in conjunction with accompanying drawing:

如图1及图2所示，其中，图1是本实用新型触控键盘的按压感测构造的立体外观图，图2是本实用新型触控键盘的按压感测构造从图1的A-A剖线的剖视图。As shown in Fig. 1 and Fig. 2, among them, Fig. 1 is the three-dimensional exterior view of the pressing sensing structure of the touch keyboard of the present invention, and Fig. 2 is the section A-A of Fig. 1 of the pressing sensing structure of the touch keyboard of the present invention Cutaway view of the line.

本实用新型的触控键盘的按压感测构造包括一压电式触控板1及一压电式振动模块7，其中：The press sensing structure of the touch keyboard of the present invention includes apiezoelectric touch panel 1 and apiezoelectric vibration module 7, wherein:

该压电式触控板1包括一下基板2、一第二导电层3、若干按压结构4、一第一导电层5以及一上基板6。Thepiezoelectric touch panel 1 includes alower substrate 2 , a secondconductive layer 3 , a plurality ofpressing structures 4 , a firstconductive layer 5 and anupper substrate 6 .

该下基板2为塑料材质所制成，例如聚对苯二甲酸乙二醇脂(Polyethylene Terephthalate，PET)，但并不以此为限；而该第二导电层3叠置在该下基板2上。Thelower substrate 2 is made of plastic material, such as polyethylene terephthalate (Polyethylene Terephthalate, PET), but not limited thereto; and the secondconductive layer 3 is stacked on thelower substrate 2 superior.

各该按压结构4相互间隔地布设在该第二导电层3上，并具有一感测层41、一接触层42及一连接层43，其中，该感测层41由感测材质(如导体、半导体等)所制成，且叠置在该第二导电层3上，该接触层42叠置在该感测层41上，且该接触层42是由压阻材料或压电材料所制成，而该连接层43叠置在该接触层42上。Each of thepressing structures 4 is arranged on the secondconductive layer 3 at intervals, and has asensing layer 41, acontact layer 42 and a connectinglayer 43, wherein thesensing layer 41 is made of a sensing material (such as a conductor , semiconductor, etc.) and stacked on the secondconductive layer 3, thecontact layer 42 is stacked on thesensing layer 41, and thecontact layer 42 is made of piezoresistive material or piezoelectric material , and theconnection layer 43 is stacked on thecontact layer 42 .

由于该接触层42是由压阻材料制成而具有压阻效应，即指当该接触层42感测组件受到外界压力作用于其上时，其电阻值会随之改变，尤其当以半导体材料作为感测组件材质时，阻值变化较其它材质更为显著；另外，当该接触层42由压电材料制成时，压电材料的特性为具有压电效应(piexoelectrics)而属一种机械能与电能互换的现象，而压电材料会有压电效应是因晶格内原子间特殊排列方式，使得材料有应力场与电场耦合的效应，压电效应有两种，即正压电效应(directpiezoelectric effect)及逆压效应(converse piezoelectriceffect)，其中，正压电效应是将机械能转换为电能，当对压电材料施以物理压力时，材料体内之电偶极矩会因压缩而变短，此时压电材料为抵抗这变化会在材料表面产生正负电荷以保持原状，即产生电压或电流信号，本实用新型即利用此种原理；而逆压效应将电能转为机械能，当在压电材料表面施加电场(电压)，因电场作用时电偶极矩会被拉长，压电材料为抵抗变化而沿电场方向伸长。Since thecontact layer 42 is made of a piezoresistive material, it has a piezoresistive effect, that is, when thecontact layer 42 sensing component is subjected to external pressure, its resistance value will change accordingly, especially when thecontact layer 42 is made of a semiconductor material. As the material of the sensing component, the resistance value change is more significant than other materials; in addition, when thecontact layer 42 is made of piezoelectric material, the characteristic of piezoelectric material is to have piezoelectric effect (piexoelectrics) and belong to a kind of mechanical energy The phenomenon of exchanging with electric energy, and piezoelectric materials have piezoelectric effect because of the special arrangement of atoms in the crystal lattice, which makes the material have the effect of coupling stress field and electric field. There are two kinds of piezoelectric effects, namely positive piezoelectric effect (direct piezoelectric effect) and converse piezoelectric effect (converse piezoelectric effect), among them, the positive piezoelectric effect is to convert mechanical energy into electrical energy. When physical pressure is applied to the piezoelectric material, the electric dipole moment in the material will be shortened due to compression At this time, in order to resist this change, the piezoelectric material will generate positive and negative charges on the surface of the material to maintain the original state, that is, generate a voltage or current signal. The utility model uses this principle; and the reverse pressure effect converts electrical energy into mechanical energy. When an electric field (voltage) is applied to the surface of the piezoelectric material, the electric dipole moment will be elongated when the electric field acts, and the piezoelectric material will elongate along the direction of the electric field in order to resist the change.

第一导电层5设置在所有按压结构4上，而上基板6的材质与下基板2相同，是由如PET的塑料材质所制成，且叠置在第一导电层5上。The firstconductive layer 5 is disposed on all thepressing structures 4 , and the material of theupper substrate 6 is the same as that of thelower substrate 2 , made of plastic material such as PET, and stacked on the firstconductive layer 5 .

另外，在该上基板6上更可叠置一印刷层(图中未示出)，印制有若干键盘按键字母符号及数字，为了适应不同使用者的手指大小，各个按键字母符号及数字为相对应单一个按压结构4而设置，或者是相对应多个按压结构4而设置，意即单个按键字母符号或数字与其相对应一个按压结构4，形成代表其符号或数字的虚拟键，或者是单个按键字母符号或数字与其相对应的多个按压结构4，为代表其符号或数字的虚拟键。In addition, a printing layer (not shown in the figure) can be stacked on theupper substrate 6, and a number of keyboard letters and numbers are printed. In order to adapt to the finger sizes of different users, each key letter and number is It is set corresponding to a singlepressing structure 4, or it is set corresponding to multiplepressing structures 4, which means that a single key letter symbol or number corresponds to apressing structure 4, forming a virtual key representing its symbol or number, or The multiplepressing structures 4 corresponding to a single key letter symbol or number are virtual keys representing its symbol or number.

为使该上基板6与下基板2之间的间距能更加稳固，因此本实用新型触控键盘的按压感测构造的压电式触控板1还包括若干间隙子(spacer)91，其分别地设置在各该按压结构4之间，且叠置在该第二导电层3上，各该间隙子91是通过一框胶层92而与该第一导电层5连接。In order to make the distance between theupper substrate 6 and thelower substrate 2 more stable, thepiezoelectric touch panel 1 of the press sensing structure of the touch keyboard of the present invention also includes a plurality of spacers (spacers) 91, which respectively Each of thespacers 91 is connected to the firstconductive layer 5 through asealant layer 92 .

而该压电式振动模块7包括一微控单元(MCU-micro controlunit)71、一转换器(inverter)72及至少一压电式振动器73，该压电式振动模块7与该压电式触控板1电气相接，而该压电式振动模块7是通过该微控单元71接收处理该压电式触控板1的信号，并经由该转换器72对信号电压频率调变处理后，进而启动该压电式振动器73，该压电式振动器73内部具有一压电式振动片731，当接收到电压信号后，会因压电效应使该压电式振动片731产生机械变形而伸展及收缩，借此特性使得该压电式振动片731产生振动，使使用者在按压字键后，将感受到该压电式振动器73的反馈振动，另外，该压电式触控板1底部还叠置有一底板80，该底板80的适当位置处可供该压电式振动模块7组设及固定，并可提供该压电式触控板1支撑及保护的效果。And thispiezoelectric vibration module 7 comprises a micro control unit (MCU-micro controlunit) 71, a converter (inverter) 72 and at least onepiezoelectric vibrator 73, thispiezoelectric vibration module 7 and this piezoelectric Thetouch panel 1 is electrically connected, and thepiezoelectric vibration module 7 receives and processes the signal of thepiezoelectric touch panel 1 through themicro control unit 71, and modulates the signal voltage and frequency through theconverter 72 , and then start thepiezoelectric vibrator 73, thepiezoelectric vibrator 73 has a piezoelectric vibratingpiece 731 inside, when receiving a voltage signal, thepiezoelectric vibrator 731 will generate a mechanical Thepiezoelectric vibrator 731 is deformed to expand and contract, so that thepiezoelectric vibrator 731 vibrates, so that the user will feel the feedback vibration of thepiezoelectric vibrator 73 after pressing the word key. In addition, the piezoelectric vibrator There is also a bottom plate 80 stacked on the bottom of thecontrol board 1 , the bottom plate 80 can be assembled and fixed for thepiezoelectric vibration module 7 at an appropriate position, and can provide the effect of supporting and protecting thepiezoelectric touch panel 1 .

请参考图3，其表示本实用新型触控键盘的按压感测构造通过一微控单元71处理反馈信号的方框图；该按压结构4中的感测层41可电性连接一微控单元71，且该微控单元71电性连接信号的转换器72，该转换器72电性连接该压电式振动器73，则该微控单元71经过该转换器72而可控制启动该压电式振动器73，使每次按压字键时，能够产生振动的效果，其详细操作将在下文作详细描述。Please refer to FIG. 3 , which shows a block diagram of the press sensing structure of the touch keyboard of the present invention processing the feedback signal through amicro control unit 71; thesensing layer 41 in thepress structure 4 can be electrically connected to amicro control unit 71, And themicro-control unit 71 is electrically connected to thesignal converter 72, and theconverter 72 is electrically connected to thepiezoelectric vibrator 73, then themicro-control unit 71 can control and start the piezoelectric vibration through theconverter 72Device 73, so that every time the word key is pressed, the effect of vibration can be produced, and its detailed operation will be described in detail below.

如图4及图5所示，其中，图4是本实用新型施力于该上基板6印刷层的单个符号数字键与其相对应一个按压结构4时的剖视图，图5是本实用新型施力于该上基板6印刷层的单个符号数字键与其相对应的多个按压结构4时的剖视图。As shown in Figure 4 and Figure 5, wherein, Figure 4 is a cross-sectional view of the utility model applying force to the single symbol number key of the printed layer of theupper substrate 6 and its correspondingpressing structure 4, and Figure 5 is a cross-sectional view of the utility model applying force A cross-sectional view of a single symbol number key printed on theupper substrate 6 and its corresponding multiplepressing structures 4 .

当使用者以手指按压施力于该上基板6印刷层的单个符号或单个数字与其相对应一个按压结构4的虚拟键时(如图4所示)，因该接触层42受施力而被压缩，以该接触层42为压阻材料为例，则该接触层42的电阻值会有所改变，而该感测层41会感测到该接触层42电阻值的压阻变化的状态，当其超过所设定阀值时则会传输一对应的按键信号至一处理器或电脑主机(图中未示出)，而其电阻值的压阻变化阀值可由处理器的软件调整设定，以适应使用者的手指施力的力道触感需求；此外，当其超过所设定阀值时则会产生一反馈信号(如图3所示)，而发送信号至该压电式振动模块7的该微控单元71，并由该微控单元71经该转换器72转换信号以控制启动该压电式振动器73，使得该压电式振动器73内的该压电式振动片731振动而产生振动效果，进而达到振动提示传输按键信号的作用。When the user presses a virtual key (as shown in FIG. 4 ) that applies force to the single symbol or single number corresponding to the printed layer of theupper substrate 6 with a finger (as shown in FIG. 4 ), thecontact layer 42 is pressed due to the force. Compression, taking thecontact layer 42 as a piezoresistive material as an example, the resistance value of thecontact layer 42 will change, and thesensing layer 41 will sense the state of the piezoresistive change of the resistance value of thecontact layer 42, When it exceeds the set threshold, it will transmit a corresponding button signal to a processor or computer host (not shown in the figure), and the piezoresistive change threshold of its resistance value can be adjusted and set by the software of the processor , in order to adapt to the tactile demand of the user's finger force; in addition, when it exceeds the set threshold, a feedback signal (as shown in Figure 3 ) will be generated, and the signal will be sent to thepiezoelectric vibration module 7 Themicro-control unit 71, and themicro-control unit 71 converts the signal through theconverter 72 to control and start thepiezoelectric vibrator 73, so that the piezoelectric vibratingpiece 731 in thepiezoelectric vibrator 73 vibrates The vibration effect is generated, and then the function of vibration prompting to transmit the button signal is achieved.

相同地，当使用者以手指按压施力于印刷层中单个符号或单个数字与其相对应多个按压结构4的虚拟键时(如图5所示)，因多个接触层42受施力而被压缩，以接触层42为压阻材料为例，则接触层42的电阻值会有所改变，而该感测层41会感测到该多个接触层42电阻值的压阻变化的状态，当其超过所设定阀值时则产生反馈信号，进而能发送按压触动的振动提示信号。Similarly, when the user presses a single symbol or a single number in the printed layer with a finger and presses a virtual key corresponding to a plurality of pressing structures 4 (as shown in FIG. If thecontact layer 42 is a piezoresistive material as an example, the resistance value of thecontact layer 42 will change, and thesensing layer 41 will sense the state of the piezoresistive change of the resistance value of the plurality of contact layers 42 , when it exceeds the set threshold, a feedback signal is generated, and then a vibration prompt signal for pressing and touching can be sent.

因此，借由上述结构，使用者可直接在触控面板上的虚拟键直接输入信息，无需再连接一般的输入键盘，以缩小整体体积；且与现有电阻式触控面板中两感测层之间为非接触的悬空结构相比，本实用新型触控键盘的按压感测构造的压电式触控板1中的按压结构4为直接与第一导电层5及第二导电层3接触并支撑，故可不使用或使用少量的间隙子91进行上基板6及下基板2之间的支撑，藉以降低成本，且可避免使用者因施力过小所造成无动作的状况发生，还能达到按压触控键盘的振动提示信号的效果。Therefore, with the above structure, the user can directly input information on the virtual keys on the touch panel, without connecting a general input keyboard, so as to reduce the overall volume; Compared with the non-contact suspended structure, thepressing structure 4 in thepiezoelectric touch panel 1 of the pressing sensing structure of the touch keyboard of the present invention is directly in contact with the firstconductive layer 5 and the secondconductive layer 3 And support, so can not use or use a small amount ofspacers 91 to support between theupper substrate 6 and thelower substrate 2, thereby reducing costs, and can avoid the situation that the user does not move due to too small force, and can also The effect of pressing the vibration prompt signal of the touch keyboard is achieved.

以上所述实施例为用以说明本实用新型，并非用以限制本实用新型，因此数值的变更或等效组件的置换仍应属于本实用新型的范畴。The above-mentioned embodiments are used to illustrate the present utility model, not to limit the present utility model, therefore, changes in numerical values or replacement of equivalent components should still fall within the category of the present utility model.

Claims (8)

1. the sensing of pushing of a touch control keyboard is constructed, and comprises a piezoelectric type Trackpad and a piezoelectric type vibration module, it is characterized in that:

This piezoelectric type Trackpad comprises:

One infrabasal plate, for plastic material made;

One second conductive layer is stacked on this infrabasal plate;

Some pressing structures; Be laid in spaced reciprocally on this second conductive layer; Respectively this pressing structure has a sensed layer, a contact layer and an articulamentum, and this sensed layer is stacked on this second conductive layer, and this contact layer is stacked on this sensed layer; And this contact layer is made by pressure drag material or piezoelectric, and this articulamentum is stacked on this contact layer;

One first conductive layer is arranged on this pressing structure; And

One upper substrate, made by plastic material, and be stacked on this first conductive layer;

This piezoelectric type vibration module comprises: a micro-control unit, a converter and at least one piezoelectric vibrator, piezoelectric type Trackpad is electric joins for this piezoelectric type vibration module and this.

2. the sensing of pushing of touch control keyboard as claimed in claim 1 is constructed, and it is characterized in that this micro-control unit starts this piezoelectric vibrator through this converter after receiving the electric signal of this piezoelectric type Trackpad.

3. the sensing of pushing of touch control keyboard as claimed in claim 1 is constructed, and it is characterized in that this piezoelectric vibrator inside has a piezoelectric type vibrating reed.

4. the sensing of pushing of touch control keyboard as claimed in claim 1 is constructed; It is characterized in that also comprise plurality of gaps, it is arranged on respectively between this pressing structure respectively; And be stacked on this second conductive layer, respectively this gap is to be connected with this first conductive layer through a frame glue-line.

5. the sensing of pushing of touch control keyboard as claimed in claim 1 is constructed, and it is characterized in that, also have a base plate and be stacked in this piezoelectric type Trackpad bottom, and this base plate supplies this piezoelectric type vibration module of assembling.

6. the sensing of pushing of touch control keyboard as claimed in claim 1 is constructed, and it is characterized in that also comprise a printed layers, it is arranged on this upper substrate.

7. the sensing of pushing of touch control keyboard as claimed in claim 1 is constructed, and it is characterized in that the plastic material of this upper substrate and this infrabasal plate is the polyethylene terephthalate.

8. the sensing of pushing of touch control keyboard as claimed in claim 1 is constructed, and it is characterized in that this sensed layer is made by the sensing material.

Images