WO2011023114A1 - Touch control device - Google Patents

Touch control device Download PDF

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Publication number
WO2011023114A1
WO2011023114A1 PCT/CN2010/076362 CN2010076362W WO2011023114A1 WO 2011023114 A1 WO2011023114 A1 WO 2011023114A1 CN 2010076362 W CN2010076362 W CN 2010076362W WO 2011023114 A1 WO2011023114 A1 WO 2011023114A1
Authority
WO
WIPO (PCT)
Prior art keywords
button
touch
control device
touch control
operation panel
Prior art date
Application number
PCT/CN2010/076362
Other languages
French (fr)
Chinese (zh)
Inventor
张辉
钟明生
宋德超
张磊
罗承荷
Original Assignee
珠海格力电器股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 珠海格力电器股份有限公司 filed Critical 珠海格力电器股份有限公司
Publication of WO2011023114A1 publication Critical patent/WO2011023114A1/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K17/962—Capacitive touch switches
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
    • H03K2217/96—Touch switches
    • H03K2217/9607—Capacitive touch switches
    • H03K2217/960705—Safety of capacitive touch and proximity switches, e.g. increasing reliability, fail-safe

Definitions

  • TECHNICAL FIELD The present invention relates to the field of home appliances, and in particular to a touch control device.
  • touch buttons have been widely used in home appliances because of their advantages such as waterproof, antistatic, excellent performance, fast response speed, space saving, and easy communication.
  • a home appliance using a touch button requires a conductive line (such as a silver paste line) to connect the button portion with a signal processing circuit of the controller, and the conductive line cannot be bent and suspended. Can be attached to the operation panel.
  • Figure 1 shows a front view of the operation panel and touch buttons.
  • the inventors have found that in the prior art, in the process of using a home appliance of a touch button, when a person touches a part of a line connecting the button portion with the signal processing circuit of the controller through the operation panel, the touch action also converts the electrical signal, that is, By touching the area other than the button by hand (as shown by the shaded area 2 in Figure 1), these useless touch actions are also converted into electrical signals that are transmitted to the controller, causing misoperation.
  • SUMMARY OF THE INVENTION The present invention is directed to a touch control device capable of solving the useless touch action when a person touches a button other than a button in a home appliance using a touch button in the prior art. Will be converted into an electrical signal to the controller, causing misoperation problems.
  • the present invention provides a touch control device, comprising: an operation panel, a shielding layer, a touch button, and a controller, wherein the operation panel is located outside the touch control device; the touch button includes a button portion
  • the shielding layer is a conductive layer, and is disposed in an area other than the button portion between the operation panel and the touch button, and the shielding layer is grounded; the controller is configured to receive and process an electrical signal generated by the touch button, and the button portion Electrical connection.
  • the touch button may further include: a silver paste circuit, one end is connected to the button portion, and the other end is connected to the touch chip of the controller through the plug terminal.
  • the touch button may further include a base portion for supporting the button portion, and the button portion is pasted or brought close to the inner side of the operation panel.
  • the touch button can be capacitively inductive, and the material is a transparent conductive film for converting a touch signal into an electrical signal.
  • the transparent conductive film may be an indium tin oxide film.
  • the indium tin oxide film may include a polyester film and an indium tin oxide. The indium tin oxide is attached to the mylar film by deposition, the substrate portion is a polyester film, and the button portion is indium tin oxide.
  • the controller may include: a printing layer, a display module, a PCB board, and a conductive connecting substance, wherein the printing layer may be a sheet layer on which a button name corresponding to the button portion is printed, located in the button portion and the display module And displayed on the display module; the display module is located directly below the button portion for displaying the button of the button portion by illumination; the PCB board is located at the bottom layer of the controller, and the PCB board is printed with a touch signal processing circuit; the conductive connecting substance, one end Connect to the shield and paste or solder the other end to the ground of the PCB.
  • the display module may include: a backlight, and the backlight is an LED lamp.
  • the operation panel may be a translucent glass panel or a translucent resin panel.
  • the shielding layer may be one of the following: a thin metal can be adhered, a conductive non-metal can be adhered, a metal plating layer coated on the inner side of the operation panel, and a conductive non-metal plating layer coated on the inner side of the operation panel.
  • an insulating layer may be provided between the button portions.
  • the insulating layer can be an insulating ink.
  • the conductive connecting material may be a conductive foam or a metal spring or a metal wire.
  • the distance between the button portion and the operation panel is 0-2 mm.
  • the utility model has the following technical effects:
  • the shielding layer covers the area of the touch button except the button portion, that is, the button may cause a mishandled area, and the shield layer is connected to the ground wire of the controller through a conductive connecting substance, so that The area outside the touch button is shielded by the shielding layer, and the human finger touches the partial area, and the touch action cannot be converted into an electrical signal. Only by touching the button, the touch action can be converted into an electrical signal, thereby overcoming the prior art using the touch button.
  • FIG. 1 is a front view showing an operation panel and a touch button according to the related art
  • FIG. 2 is a block diagram showing a touch control device according to an embodiment of the present invention
  • FIG. 4 shows an exploded view of the structure of the touch control device according to another embodiment of the present invention.
  • FIG. 2 illustrates a touch control device according to an embodiment of the present invention, including: an operation panel 100, a shielding layer 200, a touch button 300, and a controller 400, wherein the operation panel 100 is located outside the touch control device;
  • the touch button 300 includes a transparent button portion and a substrate portion for supporting the button portion, wherein the button portion is pasted or placed on the inner side of the operation panel, and the shielding layer 200 is a conductive layer, which is pasted or coated on the operation panel 100 and touched.
  • the controller 400 is configured to receive and process an electrical signal generated by the touch button 300.
  • the electrical signal is generated as each transparent conductive button of the touch button 300 is connected to the input detecting port of the touch chip, when the hand touches When the button is pressed, the touch chip senses that the capacitance on one of the transparent conductive buttons changes, the output high/low level, and the main IC of the controller detects the high/low level for recognition).
  • the controller 400 is electrically connected to the button portion, and the ground line thereof is connected to the shield layer 200 through the conductive connecting substance.
  • the shielding layer covers the area of the touch button except the button portion, that is, the button may cause misoperation
  • the area is connected, and the shielding layer is connected to the ground line of the controller through the conductive connecting material, so that the area outside the touch button is shielded by the shielding layer, and the human finger touches the partial area, and the touch action cannot be converted into an electrical signal, only the touch button
  • the touch action can be converted into an electric signal, thereby overcoming the prior art in the process of using the touch button of the home appliance product, when the person touches the area other than the button by hand, the useless touch action is also converted into the electric signal transmission.
  • the controller a problem that causes misoperation.
  • the controller comprises: a printing layer, a display module, a PCB board and a conductive connecting substance, wherein the printing layer is a sheet layer on which a button name corresponding to the button portion is printed, located between the button portion and the display module, And pasted on the display module; the display module is located directly below the button portion, for displaying the button portion of the button by the light; the PCB board is located at the bottom layer of the controller, and the PCB board is printed with a touch signal processing circuit; the conductive connecting substance, one end and the shield The layer is connected, and the other end is pasted or soldered on the ground of the PCB board; the touch button further includes: a silver paste line, one end is connected to the button part, and the other end is connected to the touch chip of the controller through the connection terminal.
  • the printing layer is a sheet layer on which a button name corresponding to the button portion is printed, located between the button portion and the display module, And pasted on the display module
  • the display module is located directly below the button portion, for
  • the operation panel is a translucent glass panel or a translucent resin panel.
  • the touch button can be touched on the operation panel.
  • the shielding layer is one of the following: a thin metal can be adhered, a conductive non-metal can be adhered, a metal plating layer coated on the inner side of the operation panel, and a conductive non-metal plating layer coated on the inner side of the operation panel. Used to shield electrical signals generated by erroneous operations.
  • the touch button is capacitively inductive, and the material is a transparent conductive film with good electrical conductivity for converting a touch signal into an electrical signal.
  • the transparent conductive film may be an indium tin oxide film, and the indium tin oxide film has good electrical conductivity.
  • the indium tin oxide film may be composed of indium tin oxide and a polyester film, and the indium tin oxide is attached to the polyester film by deposition, wherein the material of the substrate portion is the polyester film, and the material of the button portion is Indium tin oxide.
  • an insulating layer is disposed between the respective buttons of the button portion.
  • the insulating side may be an insulating ink laid between the individual keys.
  • the display module comprises: a backlight, and the backlight is an LED (Light Emitting Diode) lamp, which can make the appearance of the home appliance novel and noble.
  • the button portion of the touch button is located in the middle of the substrate, and the upper portion of the button portion is a display window, and the shielding layer is pasted on the portion of the display window of the substrate except the button portion.
  • the electrically conductive connecting substance is a conductive foam or a metal spring or a metal wire. Used to connect the shield to the ground of the controller.
  • the button portion is indium tin oxide
  • the substrate portion is a polyester film
  • the indium tin oxide is attached to the polyester film by deposition.
  • the distance between the button portion and the operation panel is 0-2 mm. This distance interval is more suitable for this embodiment.
  • 3 shows an exploded view of the structure of a touch control device in accordance with an embodiment of the present invention. As shown in FIG. 3, the embodiment is assembled by the operation panel 100, the shielding layer 200, the touch button 300, and the controller 400 (composed of the printing layer 401, the display module 402, the PCB board 403, and the conductive connecting material 404). .
  • the operation panel 100 may be a translucent glass panel, a translucent rouge panel, or the like; the shielding layer 200, a metal or non-metal conductive material layer, is pasted on the inner side of the operation panel; and the touch button 300 can be transparent with good electrical conductivity.
  • the conductive film is placed inside the operation panel 100 and within an effective conductive range, and the circuit connecting the conductive film and the controller is placed on the shielding layer 200 (the shielding layer is between the operation panel and the line, so that the line portion is touched
  • the signal can be effectively filtered out).
  • the touch button 300 converts the touch signal into an electrical signal to control the home appliance.
  • the distance between the operation panel 100 and the touch button 300 is recommended to be between 0 and 2 mm.
  • the controller comprises: a printing layer 401, a sheet layer printed with a button name, and attached to the display module; a display module 402, including a backlight, which can be an LED lamp, etc., when the backlight is lit, the printing layer 401 can be illuminated
  • the touch button is visible, when the backlight is not bright, the touch button is not visible, so that the backlight is bright and non-light, respectively, corresponding to the touch button visible and invisible, highlighting the noble and unique home appliance products, and thus improving the file;
  • the board 403 includes a touch signal processing circuit;
  • the conductive connecting material 404 can be a conductive foam, a metal spring, a metal wire, etc., and the conductive connecting material 404 is connected to the controller layer, so that the line outside the touch button is shielded by the shielding layer.
  • FIG. 4 shows an exploded view of the structure of a touch control device in accordance with an embodiment of the present invention. As shown in FIG. 4, the present embodiment is assembled by sequentially arranging the operation panel 100, the shield layer 200, the touch button 300, and the controller (composed of the printed layer 401, the display module 402, the PCB board 403, and the conductive connecting substance 404).
  • the shielding layer 200 of the present embodiment is a metal or non-metal conductive material layer, which is directly coated on the inner side of the operation panel, and the specific embodiment thereof is the same as the embodiment shown in FIG. From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: Filter out useless touch signals, and realize only useful touch actions to be converted into electrical signals, thereby controlling the setting of home appliances.
  • the touch button in the embodiment of the present invention is a transparent conductive film with good electrical conductivity. When the product is turned on, the button is visible, and the button is hidden when the device is turned off, and the button of the switch displays different appearance states. It can highlight the nobleness and uniqueness of home appliances, and the grades will be improved.

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  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Position Input By Displaying (AREA)
  • Electronic Switches (AREA)

Abstract

A touch control device is provided, which comprises: an operation panel, a shield layer, touch buttons and a controller, wherein the operation panel is located outside the touch control device, the touch buttons include a button part, the shield layer is conductive layer and set on the area besides the button part between the operation panel and the touch buttons, the shield layer is connected to ground, the controller is used to receive and process the electrical signal from the touch buttons. The device overcomes the misoperation problems that the useless touch actions are converted to the electrical signals and transmitted to the controller when a user touches the area besides the buttons with hands during employing the household appliances with touch buttons.

Description

触摸式控制装置 技术领域 本实用新型涉及家电领域， 具体而言， 涉及一种触摸式控制装置。 背景技术 近年来， 触摸式按键由于具有防水、 防静电、 性能优异、 反应速度快、 节省空间和易于交流等诸多优点得到大众的认同， 已经越来越广泛地应用于 家电产品。 在现有技术中， 应用触摸式按键的家电产品， 需要釆用导电线路 （如： 银浆线路等） 将按键部分与控制器信号处理电路相连接， 而该导电线路不能 弯折、 悬空， 只能紧贴于操作面板。 图 1示出了操作面板及触摸式按键的正 面示意图。 发明人发现现有技术中在使用触摸式按键的家电产品过程中， 当人隔着 操作面板触摸到按键部分与控制器信号处理电路相连接的部分线路时， 触摸 动作也会转化电信号， 即用手触摸按键以外的区域（如图 1中阴影区域 2所 示）， 这些无用的触摸动作也会转化为电信号传给控制器， 从而造成误操作。 实用新型内容 本实用新型旨在提供一种触摸式控制装置， 能够解决现有技术中在使用 触摸式按键的家电产品过程中， 当人用手触摸按键以外的区域时， 这些无用 的触摸动作也会转化为电信号传给控制器， 从而造成误操作问题。 为此， 本实用新型提供了一种触摸式控制装置， 其包括： 操作面板、 屏 蔽层、 触摸式按键， 以及控制器， 其中， 操作面板位于触摸式控制装置的外 侧； 触摸式按键包括按键部分； 屏蔽层为导电层， 设置在操作面板与触摸式 按键之间的除按键部分之外的区域， 屏蔽层接地； 控制器， 用于接收和处理 触摸式按键产生的电信号， 其与按键部分电连接。 进一步地， 触摸式按键还可以包括： 银浆线路， 一端与按键部分相连， 另一端通过接插端子与控制器的触控芯片相连。 进一步地， 触摸式按键还可以包括用于支撑按键部分的基材部分， 按键 部分粘贴或贴近于操作面板内侧。 进一步地， 触摸式按键可以釆用电容感应式， 其材料为透明导电薄膜， 用于将触摸信号转化为电信号。 进一步地， 透明导电薄膜可以为氧化铟锡薄膜。 进一步地， 氧化铟锡薄膜可以包括聚酯薄膜和铟锡氧化物， 铟锡氧化物 通过沉积作用附在聚脂薄膜上， 基材部分为聚酯薄膜， 按键部分为铟锡氧化 物。 进一步地， 控制器可以包括： 印刷层、 显示模块、 PCB板和导电连接物 质， 其中， 印刷层可以为片材层， 其上印刷有与按键部分对应的按键名称， 位于按键部分和显示模块之间， 并粘贴于显示模块上； 显示模块位于按键部 分的正下方，用于通过发光显示按键部分的按键； PCB板位于控制器的底层， PCB板印刷有触摸信号处理电路； 导电连接物质， 一端与屏蔽层连接， 另一 端粘贴或焊接在 PCB板的地线上。 进一步地， 显示模块可以包括： 背光源， 所述背光源为 LED灯。 进一步地， 操作面板可以为半透明的玻璃面板或半透明树脂面板。 进一步地， 屏蔽层可以为以下一种： 可粘贴薄金属、 可粘贴导电非金属、 涂覆在操作面板内侧的金属镀层和涂覆在操作面板内侧的导电非金属镀层。 进一 •步地， 按键部分之间可以设有绝缘层。 进一 •步地， 绝缘层可以为绝缘油墨。 进一 •步地， 导电连接物质可以为导电泡棉或金属弹簧或金属导线。 进一 •步地， 按键部分与操作面板之间的距离为 0-2mm。 本实用新型具有以下技术效果: 在本实用新型中，通过在操作面板和触摸式按键之间加入导电的屏蔽层， 屏蔽层覆盖在触摸式按键除按键部分之外的区域， 即按键周围可能引起误操 作的区域， 并且通过导电连接物质将屏蔽层与控制器的地线相连接， 这样触 摸按键以外区域被屏蔽层屏蔽， 人手指触摸该部份区域， 触摸动作不能转化 为电信号， 只有触摸按键， 触摸动作才能转化为电信号， 从而克服了现有技 术中在使用触摸式按键的家电产品过程中，当人用手触摸按键以外的区域时， 这些无用的触摸动作也会转化为电信号传给控制器，从而造成误操作的问题。 附图说明 此处所说明的附图用来提供对本实用新型的进一步理解， 构成本申请的 一部分， 本实用新型的示意性实施例及其说明用于解释本实用新型， 并不构 成对本实用新型的不当限定。 在附图中： 图 1示出了根据相关技术的操作面板及触摸式按键的正面示意图； 图 2示出了根据本实用新型一个实施例的触摸式控制装置框图； 图 3示出了根据本实用新型一个实施例的触摸式控制装置结构爆炸图； 图 4 示出了根据本实用新型另一个实施例的触摸式控制装置结构爆炸 图。 具体实施方式 下面^ 1参考附图并结合实施例， 来详细说明本实用新型。 图 2示出了根据本实用新型一个实施例的触摸式控制装置， 包括： 操作 面板 100、 屏蔽层 200、 触摸式按键 300和控制器 400 , 其中， 操作面板 100 位于触摸式控制装置的外侧； 触摸式按键 300包括透明的按键部分和用于支 撑按键部分的基材部分， 其中， 按键部分粘贴或贴近于操作面板内侧， 屏蔽 层 200为导电层， 粘贴或涂覆在操作面板 100与触摸式按键 300之间； 控制 器 400, 用于接收和处理触摸式按键 300产生的电信号， （电信号产生为触摸 按键 300的每个透明导电按键接到触摸芯片的输入检测口上， 当手触摸到按 键上时,触摸芯片感应到其中一个透明导电按键上的电容量发生变化时，输出 高 /低电平， 控制器的主 IC检测到高 /低电平进行识别）。 控制器 400与按键 部分电连接， 其地线通过导电连接物质与屏蔽层 200相连接。 在本实施例中， 通过在操作面板和触摸式按键之间加入导电的屏蔽层， 屏蔽层覆盖在触摸式按键除按键部分之外的区域， 即按键周围可能引起误操 作的区域， 并且通过导电连接物质将屏蔽层与控制器的地线相连接， 这样触 摸按键以外区域被屏蔽层屏蔽， 人手指触摸该部份区域， 触摸动作不能转化 为电信号， 只有触摸按键， 触摸动作才能转化为电信号， 从而克服了现有技 术中在使用触摸式按键的家电产品过程中，当人用手触摸按键以外的区域时， 这些无用的触摸动作也会转化为电信号传给控制器 ,从而造成误操作的问题。 优选地， 控制器包括： 印刷层、 显示模块、 PCB板和导电连接物质， 其 中， 印刷层为片材层， 其上印刷有与按键部分对应的按键名称， 位于按键部 分和显示模块之间， 并粘贴于显示模块上； 显示模块位于按键部分的正下方， 用于通过发光显示按键部分的按键； PCB板位于控制器的底层， PCB板印刷 有触摸信号处理电路； 导电连接物质， 一端与屏蔽层连接， 另一端粘贴或焊 接在 PCB板的地线上；触摸式按键还包括：银浆线路，一端与按键部分相连， 另一端通过接插端子与控制器的触控芯片相连。 优选地， 操作面板为半透明的玻璃面板或半透明树脂面板。 在操作面板 上可以对触摸式按键进行触摸操作。 优选地， 屏蔽层为以下一种： 可粘贴薄金属、 可粘贴导电非金属、 涂覆 在操作面板内侧的金属镀层和涂覆在操作面板内侧的导电非金属镀层。 用于 屏蔽误操作所产生的电信号。 优选地， 触摸式按键釆用电容感应式， 其材料为具有良好导电性能的透 明导电薄膜， 用于将触摸信号转化为电信号。 具体地说， 该透明导电薄膜可 以为氧化铟锡薄膜， 该氧化铟锡薄膜具有良好的导电性能。 该氧化铟锡薄膜 可以由铟锡氧化物和聚脂薄膜组成， 铟锡氧化物通过沉积作用附在聚脂薄膜 上， 其中， 基材部分的材料就是该聚脂薄膜， 按键部分的材料就是该铟锡氧 化物。 此外， 为了防止按键部分由于加工过程或人为操作的失误使相邻按键之 间电连同， 在按键部分的各个按键之间还设置有绝缘层。 优选地， 该绝缘侧可以是绝缘油墨， 铺设在各个按键之间。 优选地， 显示模块包括： 背光源， 背光源为 LED ( Light Emitting Diode , 发光二极管） 灯， 可以使家电的外观新颖、 高贵。 优选地， 触摸式按键的按键部分位于基材中部， 按键部分以上区域为显 示窗， 所述屏蔽层粘贴在基材的显示窗以下除所述按键部分以外的部分。 优选地， 导电连接物质为导电泡棉或金属弹簧或金属导线。 用于将屏蔽 层与控制器的地线相连接。 优选地， 按键部分为铟锡氧化物， 基材部分为聚脂薄膜， 铟锡氧化物通 过沉积作用附在聚脂薄膜上。 优选地， 按键部分与操作面板之间的距离为 0-2mm。 此距离间隔较适合 本实施例。 图 3示出了根据本实用新型一个实施例的触摸式控制装置结构爆炸图。 如图 3所示， 本实施例由操作面板 100、 屏蔽层 200、 触摸按键 300、 以及控 制器 400 (由印刷层 401、 显示模块 402、 PCB板 403、 导电连接物质 404组 成） 顺序组装而成。 操作面板 100 , 可以为半透明的玻璃面板、 半透明 †脂面板等； 屏蔽层 200 , 金属或非金属导电物质层， 粘贴于操作面板内侧； 触摸式按键 300 , 可为具有良好导电性能的透明导电薄膜， 置于操作面 板 100内侧且在有效的导电范围之内， 导电薄膜与控制器连接的线路置于屏 蔽层 200上 （屏蔽层处于操作面板与线路之间， 这样该线路部份的触摸信号 可以有效滤除掉）。 触摸式按键 300 将触摸信号转化为电信号， 实现对家电 产品控制。 操作面板 100与触摸式按键 300的距离建议在 0-2mm之间。 控制器包括： 印刷层 401 , 印刷有按键名称的片材层， 并贴于显示模块 上； 显示模块 402 , 含有背光源， 可为 LED灯等， 背光源点亮时， 可以照亮 印刷层 401 , 触摸按键可视， 背光源不亮时， 触摸按键不可视， 这样背光源 亮与不亮分别对应触摸按键可视与不可视， 凸现家电产品的高贵、 独特， 档 处也因此而提高； PCB板 403 , 包含触摸信号处理电路； 导电连接物质 404 , 可以为导电泡棉、 金属弹簧、 金属导线等， 导电连接物质 404实现屏蔽层与 控制器地连接， 这样触摸按键以外区域线路被屏蔽层屏蔽， 人手指触摸该部 份区域， 触摸动作不能转化为电信号， 只有触摸按键， 触摸动作才能转化为 电信号， 使得只有有用的触摸动作才能控制家电产品工作， 从而解决误操作 的问题。 图 4示出了根据本实用新型一个实施例的触摸式控制装置结构爆炸图。 如图 4所示， 本实施例由操作面板 100、 屏蔽层 200、 触摸按键 300、 以及控 制器 （由印刷层 401、 显示模块 402、 PCB板 403、 导电连接物质 404组成） 顺序组装而成。 本实施例的屏蔽层 200为金属或非金属导电物质层， 直接涂 覆在操作面板内侧， 其具体实施方式与图 3所示的实施例相同。 从以上的描述中， 可以看出， 本实用新型上述的实施例实现了如下技术 效果： 将无用的触摸信号滤除掉， 实现只有有用的触摸动作才能转化为电信 号， 从而控制家电产品按设定工作模式工作， 同时， 本实用新型实施例中的 触摸按键， 为一种具有良好导电性能的透明导电薄膜， 在产品开机时按键可 视、 关机时按键隐蔽， 开关机按键显示不同的外观状态， 可以凸现家电产品 的高贵、 独特， 档次也因此而提高。 以上所述仅为本实用新型的优选实施例而已，并不用于限制本实用新型， 对于本领域的技术人员来说， 本实用新型可以有各种更改和变化。 凡在本实 用新型的精神和原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含 在本实用新型的保护范围之内。 TECHNICAL FIELD The present invention relates to the field of home appliances, and in particular to a touch control device. BACKGROUND OF THE INVENTION In recent years, touch buttons have been widely used in home appliances because of their advantages such as waterproof, antistatic, excellent performance, fast response speed, space saving, and easy communication. In the prior art, a home appliance using a touch button requires a conductive line (such as a silver paste line) to connect the button portion with a signal processing circuit of the controller, and the conductive line cannot be bent and suspended. Can be attached to the operation panel. Figure 1 shows a front view of the operation panel and touch buttons. The inventors have found that in the prior art, in the process of using a home appliance of a touch button, when a person touches a part of a line connecting the button portion with the signal processing circuit of the controller through the operation panel, the touch action also converts the electrical signal, that is, By touching the area other than the button by hand (as shown by the shaded area 2 in Figure 1), these useless touch actions are also converted into electrical signals that are transmitted to the controller, causing misoperation. SUMMARY OF THE INVENTION The present invention is directed to a touch control device capable of solving the useless touch action when a person touches a button other than a button in a home appliance using a touch button in the prior art. Will be converted into an electrical signal to the controller, causing misoperation problems. To this end, the present invention provides a touch control device, comprising: an operation panel, a shielding layer, a touch button, and a controller, wherein the operation panel is located outside the touch control device; the touch button includes a button portion The shielding layer is a conductive layer, and is disposed in an area other than the button portion between the operation panel and the touch button, and the shielding layer is grounded; the controller is configured to receive and process an electrical signal generated by the touch button, and the button portion Electrical connection. Further, the touch button may further include: a silver paste circuit, one end is connected to the button portion, and the other end is connected to the touch chip of the controller through the plug terminal. Further, the touch button may further include a base portion for supporting the button portion, and the button portion is pasted or brought close to the inner side of the operation panel. Further, the touch button can be capacitively inductive, and the material is a transparent conductive film for converting a touch signal into an electrical signal. Further, the transparent conductive film may be an indium tin oxide film. Further, the indium tin oxide film may include a polyester film and an indium tin oxide. The indium tin oxide is attached to the mylar film by deposition, the substrate portion is a polyester film, and the button portion is indium tin oxide. Further, the controller may include: a printing layer, a display module, a PCB board, and a conductive connecting substance, wherein the printing layer may be a sheet layer on which a button name corresponding to the button portion is printed, located in the button portion and the display module And displayed on the display module; the display module is located directly below the button portion for displaying the button of the button portion by illumination; the PCB board is located at the bottom layer of the controller, and the PCB board is printed with a touch signal processing circuit; the conductive connecting substance, one end Connect to the shield and paste or solder the other end to the ground of the PCB. Further, the display module may include: a backlight, and the backlight is an LED lamp. Further, the operation panel may be a translucent glass panel or a translucent resin panel. Further, the shielding layer may be one of the following: a thin metal can be adhered, a conductive non-metal can be adhered, a metal plating layer coated on the inner side of the operation panel, and a conductive non-metal plating layer coated on the inner side of the operation panel. In one step, an insulating layer may be provided between the button portions. In a step further, the insulating layer can be an insulating ink. Further, the conductive connecting material may be a conductive foam or a metal spring or a metal wire. In a step, the distance between the button portion and the operation panel is 0-2 mm. The utility model has the following technical effects: In the utility model, by adding a conductive shielding layer between the operation panel and the touch button, the shielding layer covers the area of the touch button except the button portion, that is, the button may cause a mishandled area, and the shield layer is connected to the ground wire of the controller through a conductive connecting substance, so that The area outside the touch button is shielded by the shielding layer, and the human finger touches the partial area, and the touch action cannot be converted into an electrical signal. Only by touching the button, the touch action can be converted into an electrical signal, thereby overcoming the prior art using the touch button. In the process of home appliances, when a person touches an area other than the button by hand, these useless touch actions are also converted into electrical signals to the controller, thereby causing a problem of misoperation. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate, FIG. Improperly qualified. In the drawings: FIG. 1 is a front view showing an operation panel and a touch button according to the related art; FIG. 2 is a block diagram showing a touch control device according to an embodiment of the present invention; Explosion diagram of the structure of the touch control device of one embodiment of the utility model; FIG. 4 shows an exploded view of the structure of the touch control device according to another embodiment of the present invention. DETAILED DESCRIPTION ^ 1 in conjunction with embodiments with reference to the accompanying drawings, the present invention is described in detail. 2 illustrates a touch control device according to an embodiment of the present invention, including: an operation panel 100, a shielding layer 200, a touch button 300, and a controller 400, wherein the operation panel 100 is located outside the touch control device; The touch button 300 includes a transparent button portion and a substrate portion for supporting the button portion, wherein the button portion is pasted or placed on the inner side of the operation panel, and the shielding layer 200 is a conductive layer, which is pasted or coated on the operation panel 100 and touched. The controller 400 is configured to receive and process an electrical signal generated by the touch button 300. (The electrical signal is generated as each transparent conductive button of the touch button 300 is connected to the input detecting port of the touch chip, when the hand touches When the button is pressed, the touch chip senses that the capacitance on one of the transparent conductive buttons changes, the output high/low level, and the main IC of the controller detects the high/low level for recognition). The controller 400 is electrically connected to the button portion, and the ground line thereof is connected to the shield layer 200 through the conductive connecting substance. In this embodiment, by adding a conductive shielding layer between the operation panel and the touch button, the shielding layer covers the area of the touch button except the button portion, that is, the button may cause misoperation The area is connected, and the shielding layer is connected to the ground line of the controller through the conductive connecting material, so that the area outside the touch button is shielded by the shielding layer, and the human finger touches the partial area, and the touch action cannot be converted into an electrical signal, only the touch button The touch action can be converted into an electric signal, thereby overcoming the prior art in the process of using the touch button of the home appliance product, when the person touches the area other than the button by hand, the useless touch action is also converted into the electric signal transmission. Give the controller a problem that causes misoperation. Preferably, the controller comprises: a printing layer, a display module, a PCB board and a conductive connecting substance, wherein the printing layer is a sheet layer on which a button name corresponding to the button portion is printed, located between the button portion and the display module, And pasted on the display module; the display module is located directly below the button portion, for displaying the button portion of the button by the light; the PCB board is located at the bottom layer of the controller, and the PCB board is printed with a touch signal processing circuit; the conductive connecting substance, one end and the shield The layer is connected, and the other end is pasted or soldered on the ground of the PCB board; the touch button further includes: a silver paste line, one end is connected to the button part, and the other end is connected to the touch chip of the controller through the connection terminal. Preferably, the operation panel is a translucent glass panel or a translucent resin panel. The touch button can be touched on the operation panel. Preferably, the shielding layer is one of the following: a thin metal can be adhered, a conductive non-metal can be adhered, a metal plating layer coated on the inner side of the operation panel, and a conductive non-metal plating layer coated on the inner side of the operation panel. Used to shield electrical signals generated by erroneous operations. Preferably, the touch button is capacitively inductive, and the material is a transparent conductive film with good electrical conductivity for converting a touch signal into an electrical signal. Specifically, the transparent conductive film may be an indium tin oxide film, and the indium tin oxide film has good electrical conductivity. The indium tin oxide film may be composed of indium tin oxide and a polyester film, and the indium tin oxide is attached to the polyester film by deposition, wherein the material of the substrate portion is the polyester film, and the material of the button portion is Indium tin oxide. In addition, in order to prevent the button portion from being electrically connected between adjacent buttons due to processing or human error, an insulating layer is disposed between the respective buttons of the button portion. Preferably, the insulating side may be an insulating ink laid between the individual keys. Preferably, the display module comprises: a backlight, and the backlight is an LED (Light Emitting Diode) lamp, which can make the appearance of the home appliance novel and noble. Preferably, the button portion of the touch button is located in the middle of the substrate, and the upper portion of the button portion is a display window, and the shielding layer is pasted on the portion of the display window of the substrate except the button portion. Preferably, the electrically conductive connecting substance is a conductive foam or a metal spring or a metal wire. Used to connect the shield to the ground of the controller. Preferably, the button portion is indium tin oxide, the substrate portion is a polyester film, and the indium tin oxide is attached to the polyester film by deposition. Preferably, the distance between the button portion and the operation panel is 0-2 mm. This distance interval is more suitable for this embodiment. 3 shows an exploded view of the structure of a touch control device in accordance with an embodiment of the present invention. As shown in FIG. 3, the embodiment is assembled by the operation panel 100, the shielding layer 200, the touch button 300, and the controller 400 (composed of the printing layer 401, the display module 402, the PCB board 403, and the conductive connecting material 404). . The operation panel 100 may be a translucent glass panel, a translucent rouge panel, or the like; the shielding layer 200, a metal or non-metal conductive material layer, is pasted on the inner side of the operation panel; and the touch button 300 can be transparent with good electrical conductivity. The conductive film is placed inside the operation panel 100 and within an effective conductive range, and the circuit connecting the conductive film and the controller is placed on the shielding layer 200 (the shielding layer is between the operation panel and the line, so that the line portion is touched The signal can be effectively filtered out). The touch button 300 converts the touch signal into an electrical signal to control the home appliance. The distance between the operation panel 100 and the touch button 300 is recommended to be between 0 and 2 mm. The controller comprises: a printing layer 401, a sheet layer printed with a button name, and attached to the display module; a display module 402, including a backlight, which can be an LED lamp, etc., when the backlight is lit, the printing layer 401 can be illuminated The touch button is visible, when the backlight is not bright, the touch button is not visible, so that the backlight is bright and non-light, respectively, corresponding to the touch button visible and invisible, highlighting the noble and unique home appliance products, and thus improving the file; The board 403 includes a touch signal processing circuit; the conductive connecting material 404 can be a conductive foam, a metal spring, a metal wire, etc., and the conductive connecting material 404 is connected to the controller layer, so that the line outside the touch button is shielded by the shielding layer. The human finger touches the part of the area, and the touch action cannot be converted into an electrical signal. Only by touching the button, the touch action can be converted into an electrical signal, so that only a useful touch action can control the work of the home appliance, thereby solving the problem of misoperation. 4 shows an exploded view of the structure of a touch control device in accordance with an embodiment of the present invention. As shown in FIG. 4, the present embodiment is assembled by sequentially arranging the operation panel 100, the shield layer 200, the touch button 300, and the controller (composed of the printed layer 401, the display module 402, the PCB board 403, and the conductive connecting substance 404). The shielding layer 200 of the present embodiment is a metal or non-metal conductive material layer, which is directly coated on the inner side of the operation panel, and the specific embodiment thereof is the same as the embodiment shown in FIG. From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: Filter out useless touch signals, and realize only useful touch actions to be converted into electrical signals, thereby controlling the setting of home appliances. In the working mode, the touch button in the embodiment of the present invention is a transparent conductive film with good electrical conductivity. When the product is turned on, the button is visible, and the button is hidden when the device is turned off, and the button of the switch displays different appearance states. It can highlight the nobleness and uniqueness of home appliances, and the grades will be improved. The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

权 利 要 求 书 Claim
1. 一种触摸式控制装置， 其特征在于， 包括： 操作面板、 屏蔽层、 触摸 式按键， 以及控制器， 其中 A touch control device, comprising: an operation panel, a shielding layer, a touch button, and a controller, wherein
所述操作面板位于所述触摸式控制装置的外侧；  The operation panel is located outside of the touch control device;
所述触摸式按键包括按键部分；  The touch button includes a button portion;
所述屏蔽层为导电层， 设置在所述操作面板与所述触摸式按键之间 的除所述按键部分之外的区域， 所述屏蔽层接地；  The shielding layer is a conductive layer disposed in an area other than the button portion between the operation panel and the touch button, and the shielding layer is grounded;
所述控制器， 用于接收和处理所述触摸式按键产生的电信号， 其与 所述按键部分电连接。  The controller is configured to receive and process an electrical signal generated by the touch button, and is electrically connected to the button portion.
2. 根据权利要求 1所述的触摸式控制装置， 其特征在于， 所述触摸式按 键还包括： 4艮浆线路， 一端与所述按键部分相连， 另一端通过接插端 子与所述控制器的触控芯片相连。 The touch control device according to claim 1, wherein the touch button further comprises: 4 a pulp line, one end is connected to the button portion, and the other end is connected to the controller through the plug terminal The touch chips are connected.
3. 根据权利要求 2所述的触摸式控制装置， 其特征在于， 所述触摸式按 键还包括用于支撑所述按键部分的基材部分， 所述按键部分粘贴或贴 近于所述操作面板内侧。 The touch control device according to claim 2, wherein the touch button further comprises a base portion for supporting the button portion, the button portion being pasted or adjacent to the inner side of the operation panel .
4. 根据权利要求 3所述的触摸式控制装置， 其特征在于， 所述触摸式按 键釆用电容感应式， 其材料为透明导电薄膜， 用于将触摸信号转化为 电信号。 The touch control device according to claim 3, wherein the touch button is capacitively inductive, and the material is a transparent conductive film for converting a touch signal into an electrical signal.
5. 根据权利要求 4所述的触摸式控制装置， 其特征在于， 所述透明导电 薄膜为氧化铟锡薄膜。 The touch control device according to claim 4, wherein the transparent conductive film is an indium tin oxide film.
6. 根据权利要求 5所述的触摸式控制装置， 其特征在于， 所述氧化铟锡 薄膜包括聚酯薄膜和铟锡氧化物， 所述铟锡氧化物通过沉积作用附在 所述聚脂薄膜上， 所述基材部分为所述聚酯薄膜， 所述按键部分为所 述铟锡氧化物。 The touch control device according to claim 5, wherein the indium tin oxide film comprises a polyester film and an indium tin oxide, and the indium tin oxide is attached to the polyester film by deposition The substrate portion is the polyester film, and the button portion is the indium tin oxide.
7. 根据权利要求 1所述的触摸式控制装置， 其特征在于， 所述控制器包 括： 印刷层、 显示模块、 PCB板和导电连接物质， 其中 所述印刷层为片材层，其上印刷有与所述按键部分对应的按键名称， 位于所述按键部分和所述显示模块之间， 并粘贴于所述显示模块上； 所述显示模块位于所述按键部分的正下方， 用于通过发光显示所述 按键部分的按键； The touch control device according to claim 1, wherein the controller comprises: a printing layer, a display module, a PCB board, and a conductive connecting substance, wherein The printing layer is a sheet layer on which a button name corresponding to the button portion is printed, located between the button portion and the display module, and pasted on the display module; the display module is located Directly below the button portion, for displaying a button of the button portion by illumination;
所述 PCB板位于所述控制器的底层， 所述 PCB板印刷有触摸信号 处理电路；  The PCB board is located at a bottom layer of the controller, and the PCB board is printed with a touch signal processing circuit;
所述导电连接物质， 一端与所述屏蔽层连接， 另一端粘贴或焊接在 所述 PCB板的地线上。 根据权利要求 7所述的触摸式控制装置， 其特征在于， 所述显示模块 包括： 背光源， 所述背光源为 LED灯。 根据权利要求 1所述的触摸式控制装置， 其特征在于， 所述操作面板 为半透明的玻璃面板或半透明树脂面板。  The conductive connecting material has one end connected to the shielding layer and the other end pasted or soldered on the ground of the PCB board. The touch control device according to claim 7, wherein the display module comprises: a backlight, and the backlight is an LED lamp. The touch control device according to claim 1, wherein the operation panel is a translucent glass panel or a translucent resin panel.
10. 根据权利要求 1所述的触摸式控制装置， 其特征在于， 所述屏蔽层为 以下一种： 10. The touch control device according to claim 1, wherein the shielding layer is one of the following:
可粘贴薄金属、 可粘贴导电非金属、 涂覆在操作面板内侧的金属镀 层和涂覆在操作面板内侧的导电非金属镀层。  It can be attached with a thin metal, a conductive non-metal, a metal plating applied to the inside of the operation panel, and a conductive non-metal plating applied to the inside of the operation panel.
11. 根据权利要求 10所述的触摸式控制装置， 其特征在于， 所述按键部分 之间设有绝缘层。 The touch control device according to claim 10, wherein an insulating layer is provided between the button portions.
12. 根据权利要求 11所述的触摸式控制装置， 其特征在于， 所述绝缘层为 绝缘油墨。 The touch control device according to claim 11, wherein the insulating layer is an insulating ink.
13. 根据权利要求 1所述的触摸式控制装置， 其特征在于， 所述导电连接 物质为导电泡棉或金属弹簧或金属导线。 13. The touch control device according to claim 1, wherein the conductive connecting substance is a conductive foam or a metal spring or a metal wire.
14. 根据权利要求 2至 13中任一项所述的触摸式控制装置， 其特征在于, 所述按键部分与所述操作面板之间的 3巨离为 0-2mm。 The touch control device according to any one of claims 2 to 13, characterized in that the large separation between the button portion and the operation panel is 0-2 mm.
PCT/CN2010/076362 2009-08-26 2010-08-25 Touch control device WO2011023114A1 (en)

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