M359724 五、新型說明： 【新型所屬之技術領域】 本創作係有關於一種用於觸控面板之顯示裝置，尤指一 種利用接地導電膜以減少其向上輻射電磁波之顯示裝置。 【先前技術】 按’習知的觸控面板係由一可透光的觸控板10與一顯 示裝置20所相互疊合而成之板體，透過該顯示裝置所顯示 圖形與該觸控板指標的配合’使用者可以進行直覺式的輪入 操作。觸控面板應用的範圍極廣，舉凡各式公共互動工具， 例如：ATM提款機、結帳櫃台的收銀機、醫院掛號觸控機等 等，或是個人數位助理(PDA)、行動電話、筆記型電腦等等 都可以見到觸控面板的身影。 觸控板10中的觸控原理主要分為：電阻式、電容式、 音波式以及紅外線^ ’其巾又以電喊與電容式較為工業界 上所利用。電阻式觸控板係由兩導電片所構成，在兩導電片 的中間分佈有轩間隔以戰er)，使該兩導電片不受觸廢 時彼此為不導通之狀態；當上方具有撓性之_受觸壓而 排擠較壓點下方關隔_成上下導電衫通時，便可藉 由量測該導通迴路中的電阻與施加偏壓的_而得到受壓曰 3 M359724 相車擔需要職之電喊觸控板，電容式觸控板的動作 • 原理係來自於手指或導_碰觸控板時所延伸出之電容變 ’ 化田或手指接觸絕緣層1〇1表面時，下方分佈電容感 應層102便可依此量測出手指/導體接觸時所產生電容的差 異，以此回推出接觸點之座標。 當使用導體來執行電容式觸控板的操作輸入時，由於導 體的電位或電荷是系統控制的，因此，導體觸碰造成之電容 藝變疋了預期的，系統周遭產生雜訊（例如：電磁波以及内 部里測電路）的影響範圍當然也就在導體訊噪比設計的範圍 之内，因此，使用系統設計的導體來觸發電容式觸控板，較 " 不會欠周遭電磁波雜訊的影響。 然而’當使用手指來觸發電容式觸控板時，由於手指為 不良導電體’對觸控板所造成的電容變化可能小於一個 12farad:電容單位）’對照感應電路中本身所具有的數 • 個到數十個Pf電容來說，手指造成的電容反應是很微弱的。 尤其在觸控面板的應用上，觸控的面積越大感應電路中的電 谷也就越大’手指造成的電容反應也就相對的越來越難以偵 測。 此時’若還有來自外部的電磁波干擾，對手指的觸控偵 測來說無疑是雪上加霜。不幸的是，觸控板10經常是直接 裝置於所使用之顯示裝置20上，使得顯示裝置20向上輻射 4 M359724 出的電磁波直接衝擊到觸控板10電容值的量測，形成系統 層級的電磁波雜訊。M359724 V. New description: [New technical field] This is a display device for a touch panel, especially a display device that uses a grounded conductive film to reduce its upward electromagnetic wave. [Prior Art] A conventional touch panel is a board body which is formed by superposing a light-permeable touch panel 10 and a display device 20, and a graphic displayed on the display device and the touch panel. The fit of the indicator' allows the user to perform an intuitive round-robin operation. There are a wide range of touch panel applications, such as ATMs, ATMs at checkout counters, hospital registered touch machines, etc., or personal digital assistants (PDAs), mobile phones, Touch panels can be seen on laptops and so on. The touch principle in the touch panel 10 is mainly divided into: resistive, capacitive, sonic, and infrared ^', and the towel is used in the industrial circle by electric shouting and capacitive. The resistive touch panel is composed of two conductive sheets, and a spacing between the two conductive sheets is distributed to warn er), so that the two conductive sheets are not electrically connected to each other when they are not touched; The pressure is squeezed and squeezed out of the lower pressure point. When the upper and lower conductive shirts are turned on, the pressure in the conduction loop and the bias voltage _ can be measured to obtain the pressure 曰3 M359724 phase load The action of the electric screaming touchpad, the action of the capacitive touchpad • The principle is derived from the finger or the conduction _ touch the touchpad when the capacitance is extended 'when the field or the finger touches the surface of the insulating layer 1〇1, below The distributed capacitive sensing layer 102 can measure the difference in capacitance generated when the finger/conductor contacts, thereby pushing back the coordinates of the contact point. When a conductor is used to perform an operational input of a capacitive touch panel, since the potential or charge of the conductor is system controlled, the capacitance caused by the conductor touch is expected to be abnormal, and noise is generated around the system (for example, electromagnetic waves). And the influence range of the internal measurement circuit is of course within the range of the conductor signal-to-noise ratio design. Therefore, using the conductor of the system design to trigger the capacitive touch panel is more damaging to the influence of electromagnetic noise. . However, when using a finger to trigger a capacitive touch panel, the change in capacitance caused by the finger as a poor conductor may be less than a 12farad: capacitance unit. 'The number of the sensing circuit itself. To dozens of Pf capacitors, the capacitive response caused by the fingers is very weak. Especially in the application of the touch panel, the larger the area of the touch is, the larger the voltage in the sensing circuit is. The capacitance response caused by the finger is relatively more difficult to detect. At this time, if there is electromagnetic interference from the outside, it is undoubtedly worse for the touch detection of the finger. Unfortunately, the touch panel 10 is often directly mounted on the display device 20 used, so that the electromagnetic wave emitted by the display device 20 directly radiates 4 M359724 directly impacts the measurement of the capacitance value of the touch panel 10 to form electromagnetic waves at the system level. Noise.
因此，一般傳統電容式觸控板會在最下層之基板103下 方再新增一層抗電磁波層104以達到減少來自觸控板下方的 黾磁波干擾。其結構可為一透明導電氧化物(TranSparent Conductive Oxide，TCO)膜，並以一導線與觸控板之接地端 電接，形成觸控板對下方電磁場的屏蔽(shielding)，降低 來自電容式觸控板底下之電磁波干擾。 該抗電磁波層104的組成結構可以視該絲1〇3的材質 而定’若該紐103為玻璃材質，則可以採用鍍膜的方式來 製成該抗f磁波層1〇4 ;若該基板1Q3為雜材f，則是另 行膠合一層接地導電膠膜來完成。 夕以-練薄造型之觸控板1〇來說，其電容式感應層1〇2 多半與其基板1G3合而為-，採用財透明導電氧化物之膠 膜’該透明導電氧化物則製成該電容式感應層搬，膠膜則 形成其基板103。因為使用膠膜來作為該基板1()3，在穿』作 該抗電磁波層1G4時就需要多加—次膠合程序，細，膠人 所產生的種種製程驗例如：黏合時生成贱泡、黏合液沾 Γ膜以及膠膜變形料’都會再—次降低觸控板產品的良 率’同時’該多出的膠合成本也會影響產品的獲利率。 除此之外’具接地線路之該抗電磁波層1〇4依然需要藉 5 M359724 由該電容式感應層102上的訊號輸出排線進行接地電路的連 接由於，§亥電容式感應層1〇2上的訊號輪出已經佔用了 — ' 錄出排線’為了要將該抗電磁波層104上的接地線路輪 出則而另增一條排線輸出，如此，不僅增加排線輸出安排 的困難，也將使觸控板10輸出排線的整體厚度增加，大大 減低觸控面板的輕薄性。 由此可知，新增一層抗電磁波層104於原有基板103的 > 下方；ί;齡造成多―:欠的膠合程序，也會使得排線的安排 上會更加複雜。雖然顯示裝置20對觸控板10的電磁波影響 了 X 口為w亥抗電磁波層104而變小，使觸控準確度提升.伸 是相_«程風險也-併升高，造成產品的良率下降，同時Therefore, the conventional capacitive touch panel will add an anti-electromagnetic layer 104 under the lowermost substrate 103 to reduce the magnetic interference from the bottom of the touch panel. The structure can be a transparent conductive oxide (TCO) film, and a wire is electrically connected to the ground end of the touch panel to form a shielding layer to shield the electromagnetic field below, and reduce the capacitive touch. Electromagnetic interference under the control panel. The composition of the anti-electromagnetic wave layer 104 may depend on the material of the wire 1〇3. If the button 103 is made of glass, the anti-f magnetic wave layer 1〇4 may be formed by coating; if the substrate 1Q3 For the miscellaneous material f, it is done by separately bonding a layer of grounding conductive film. In the case of a touch panel with a thin shape, the capacitive sensing layer 1〇2 is mostly combined with its substrate 1G3, and is made of a transparent transparent conductive oxide film. The capacitive sensing layer is moved, and the film forms its substrate 103. Since the adhesive film is used as the substrate 1 () 3, it is necessary to add a multi-gluing procedure when the anti-electromagnetic wave layer 1G4 is worn, and the various processes such as those produced by the rubberizer are, for example, foaming and bonding at the time of bonding. The liquid smear film and the film deformation material will reduce the yield of the touch panel product again and at the same time, and the extra glue synthesis will affect the profitability of the product. In addition, the anti-electromagnetic layer 1〇4 with a grounding line still needs to be connected by 5 M359724 from the signal output line on the capacitive sensing layer 102. § Hai Capacitive sensing layer 1〇2 The signal rounding on the upper part has already been occupied - 'recording the cable line' in order to turn the ground line on the anti-electromagnetic wave layer 104 and add another line output, thus not only increasing the difficulty of the arrangement of the line output, but also The overall thickness of the output cable of the touch panel 10 is increased, which greatly reduces the lightness and thinness of the touch panel. It can be seen that the addition of a layer of anti-electromagnetic wave layer 104 under the > of the original substrate 103; ί; the age-causing multi-: owing glue program will also make the arrangement of the cable line more complicated. Although the electromagnetic wave of the touch panel 10 affects the X port to become the anti-electromagnetic wave layer 104, the touch accuracy is improved. The extension is the phase _ «process risk - and rises, resulting in good product Rate decreases while
觸控板排線增加的厚度也會影響驗面板敝«、外形設 與輕薄性。 X 因此’如何能在原有_控面板架構下触觸控板的抗 ’電磁波能力以增加電容式觸控板的量測準確度，又，保有觸 控面板的輕雜不需負擔額外的成本與製程風險， 提升產品良率與產品獲利率，係為本創作人致力達成之目 標。 【新型内容】 為解決上述習知技術使用上的問題，本創作提供一種用 6 M359724 於觸控面板之顯示裝置，其巾，麵示裝置上方具有—透光 . 板體且其表面設置有至少—透光導電層。同時，該透光導電 層ir、以至少-條導線與接地端(gr〇und)電氣連接，用以屏蔽 5玄顯示裝置向外輻射出之電磁波。 為使本創作之結構與優點能有更清楚明瞭之圖像，以下 提供最佳實施例與相關圖式詳細說明。 _ 【實施方式】 本創作之較佳實施例係利用該顯示裝置2〇既有之透光 板體201 ’於其上方設置一透光導電層3〇1A，並透過至少一 導線將該透光導電層301A與系統接地端電接，用以提供一 具有接地導電膜之透光板體3〇1。以液晶顯示器LCD舉例， 其上方至少具有一玻璃基板作為LCD電極、薄膜式電晶體、 偏振片或抗眩、抗反射鏡片之基板，本創作之較佳實施例係 _ 應用該既有之玻璃基板作為本創作之具接地導電臈透明板 體 301。 該透光導電層301A可於該玻璃基板作LCD製程時一併 加工完成、直接採用具有透明導電氧化物(Transparent Conductive Oxide, TCO)鍍膜之玻璃片作為LCD之該玻璃基 板、或是於顯示裝置20完成後再另行鍍膜於上方之透明板 體301上。 7 M359724 利用既有之透明板體201作為本創作之具有接地導電膜 301A之透明板體3〇1，係為本創作之較佳實施例，並不侷限 本創作之創作範圍與應用。The increased thickness of the touch panel cable also affects the inspection panel 、«, shape and lightness. X therefore, 'how can I touch the anti-electromagnetic wave capability of the touchpad under the original _ control panel structure to increase the measurement accuracy of the capacitive touch panel, and the light weight of the touch panel does not need to bear additional cost and Process risk, improving product yield and product profitability are the goals that the creators are committed to. [New content] In order to solve the problems in the use of the above-mentioned prior art, the present invention provides a display device using a 6 M359724 on a touch panel, which has a light-transmissive plate on the surface of the device, and the surface thereof is provided with at least - Light-transmissive conductive layer. At the same time, the light-transmissive conductive layer ir is electrically connected to the grounding end by at least one of the wires to shield the electromagnetic waves radiated from the external display device. In order to provide a clearer picture of the structure and advantages of the present invention, a detailed description of the preferred embodiment and related drawings is provided below. EMBODIMENT OF THE INVENTION The preferred embodiment of the present invention utilizes the display device 2 to provide a light-transmissive conductive layer 3〇1A over the existing light-transmissive plate body 201', and transmit the light through at least one wire. The conductive layer 301A is electrically connected to the grounding end of the system to provide a light-transmitting plate body 〇1 having a grounded conductive film. For example, a liquid crystal display (LCD) has at least one glass substrate as a substrate for an LCD electrode, a thin film transistor, a polarizing plate or an anti-glare or anti-reflective lens. The preferred embodiment of the present invention is to apply the existing glass substrate. As a grounding conductive 臈 transparent plate body 301 of the present invention. The transparent conductive layer 301A can be processed together in the LCD process, and the glass plate with transparent conductive oxide (TCO) coating can be directly used as the glass substrate of the LCD or on the display device. After the completion of 20, it is additionally coated on the upper transparent plate body 301. 7 M359724 The use of the existing transparent plate 201 as the transparent plate body 3〇1 of the present invention having the grounded conductive film 301A is a preferred embodiment of the present invention and is not limited to the scope and application of the creation.
如此—來，觸控板10可直接組裝於該顯示裝置20上， 而無需於該觸控板1Q多一道抗電磁波層的程序，一樣達到 減少底下電錢干擾之功能。另外，鞠控面板的組合程序 原本就是必要之程序，因此，不會因為多—層抗電磁波設置 而需額外的膠合程序使產品良率下降。 於本創作之較佳實施例中，該顯示裝置20並不會因為 夕了層錢光導電層301A而增加多少厚度與重量。同時， 若是採用已續膜好的該玻璃基板來製作，則更無需排入另 一個製程直接_透光導電層觀與接地端電接即可。 如上所述，該透光導電層301A之材質可為透光導電氧 化物TCO，因此，本創作之實施可以具有ITQ膜之薄片或玻 璃基板作為該具有透光導電層之透光板體3G卜或是另行於 一透光板體鍍膜或沉積該ίτο薄膜。 若該LCD之_基板採選為多層_片，則可以於多層 膜製作時-併製_透光導電層繼。另外，該透光導騎 301A連接至接地端的導路(未標示於圖上）亦可於跏膜光罩 製作時就_轉路、於™航絲雜柄_導路之 工作、或是糾應用導電油墨之印刷方式將該導路印刷上 8 M359724 去。 ，了以透明導電_的方式呈現該透光導電層職 宰$作亦提衫—種實施例，其係_#线 ==翻該透轉電層3㈣之目的。射以為= 簍★大罔或1T〇網格’或是為具有若干不規則分佈與 婁工大小之透明導雷镇 、，、或至屬，在保持該顯示裝置20之 '，—樣達到接轉電之抗電磁波效果。In this way, the touch panel 10 can be directly assembled on the display device 20 without the need for a program for resisting the electromagnetic wave layer on the touch panel 1Q, thereby achieving the function of reducing the interference of the bottom money. In addition, the combination of the control panel is originally a necessary procedure, so there is no need for additional gluing procedures to reduce the yield of the product due to the multi-layer anti-electromagnetic wave setting. In the preferred embodiment of the present invention, the display device 20 does not increase the thickness and weight due to the layer of photoconductive layer 301A. At the same time, if the glass substrate is continuously formed, it is not necessary to discharge into another process, and the light-transmissive conductive layer can be electrically connected to the ground. As described above, the material of the light-transmitting conductive layer 301A may be a light-transmissive conductive oxide TCO. Therefore, the implementation of the present invention may have a thin film or a glass substrate of the ITQ film as the light-transmitting plate body having the light-transmitting conductive layer. Or separately coating or depositing the ίτο film on a transparent plate. If the substrate of the LCD is selected as a multi-layer film, it can be formed in the case of a multilayer film. In addition, the light guide 301A is connected to the grounding end of the guide (not shown in the figure). It can also be used when the reticle reticle is made, the TM traverse _ guide, or the correction The guide is printed on 8 M359724 using a conductive ink printing method. The transparent conductive layer is used to present the light-transmissive conductive layer to be used as a shirt, and the embodiment is _# line == the purpose of turning the turn-on layer 3 (4). Shooting = 篓 罔 罔 or 1T 〇 grid ' or a transparent guide mine with a number of irregular distribution and completion size, or, to the genus, in the maintenance of the display device 20, The anti-electromagnetic effect of the power transmission.
透光‘電層3QU還可以具有若干個接地部，其係為 導路具有較大面積之導電材質，用以提供較佳且快速之 接地導通效果。 本創作之較佳實施例雖以LCD作為該顯示裝置2〇之舉 例，但不因此限定該顯示裝置2〇之範圍，該顯示裝置2〇除 為LCD外亦』為電装顯示器、陰極射線管顯示器等等。除 此之外’本創作中魏光導電層難亦不侷限於該透光板 體301之上方表面，位於該透光板體3〇1下方表面或是中間 之錢光導電層3G1A也同樣為摘作糊保護之範圍。本 創作應用之觸控面板亦不侷限於實施例與圖式中的電容式 觸控面板，其他如電阻式觸控面板、電氣觸控面板、音波 式觸控面板以及紅外_控面板㈣同縣本創作之實施 範圍内。 表丁、上所述，依上述實施方式與結構確能達到本創作之目 9 M359724 301 :具透光導電層之透光板體 . 301A :透光導電層The light-transmitting 'electric layer 3QU can also have a plurality of grounding portions, which are conductive materials having a large area of the guiding path for providing a better and faster grounding conduction effect. The preferred embodiment of the present invention uses an LCD as an example of the display device 2, but does not limit the scope of the display device 2, and the display device 2 is an LCD display and a cathode ray tube display. and many more. In addition, in this creation, the Weiguang conductive layer is not limited to the upper surface of the light-transmitting plate body 301, and the Qianguang conductive layer 3G1A located on the lower surface of the light-transmitting plate body 3〇1 or in the middle is also the same. The scope of protection for the paste. The touch panel of the present application is not limited to the capacitive touch panel in the embodiment and the drawings, and other such as a resistive touch panel, an electric touch panel, an acoustic wave touch panel, and an infrared_control panel (four) Within the scope of implementation of this creation. According to the above embodiment and structure, it can achieve the purpose of the creation. 9 M359724 301: Light-transmissive plate body with light-transmissive conductive layer. 301A: Light-transmitting conductive layer
1111