201040998 •六、發明說明： ' 【發明所屬之技術領域】 本發明涉及一種按鍵。 【先前技術】 按鍵係-種被廣泛應用於各種電子產品中的基本操控 裝置’比如電視機面板上控制打開榮幕，關閉榮幕，進入 選擇功能表，退出選擇功能表，選中某個功能表並進行調 Ο即等各項功能的按鍵，但係目前的按鍵大多都只能執行某 =定的功能、，因此要實現上述多項功能就需要分別在電 置上,又置複數按鍵，從而導致將複數按鍵組装到電子 =上比較耗費工時，特別係隨著現在小型電子襄置的逐 漸、則于’複數按鍵給電子裝置的設計帶來很大的麻煩。 【發明内容】 有馨於此，有必要提供一種多功能的按鍵。 種按鍵，其包括一觸摸部及一 。4 ^ y 夠感受外部壓力。今搡…二㈣4該觸摸部能 採槎哭：部包括電源，第-採樣器，第-私樣器’處理器，間隙設罟 禾一 電層包括相對的第一端及第二端，該第 的：三端及第四端，該第-端與第三端位於該； 導電層及第二導電屛— w 〜通弟 該第-導電層及第二i電：的另丨第二端及第四端位於 採樣器與該電源的第—極;連：一：：該第：端經過第- 个电連接，该弟四端藉由第二採樣 4 201040998 器與該電源的第-極電連接，該第二端與第三端均直接與 該電源的第二極電連接。該處理器與該第一採樣器及第二 採樣器电連接，用於分析第一採樣器及第二採樣器所採集 到的訊號變化方式，並根據該訊號變化方式發出相應的指 令使一電子裝置執行相應的功能。 本發明的按鍵，根據該第一導電層及第二導電層的接 觸點的位置不同，使該第一採樣器及第二採樣器所採集到 的訊號不同，該處理器對第—採樣器及第二採樣器所採集 到的訊號變化方式進行分析判斷，i根據該訊號變化方式 發出心々使電子裝置執行相應的功能，從而使一個按鍵可 實現多種不同的功能，結構簡單，實用性強。 【實施方式】 下面將結合附圖，對本發明作進一步的詳細說明。 睛參閱圖1至圖3’為本發明實施方式提供的按鍵 〇 1〇〇,該按鍵1〇〇包括一觸摸部11〇，一疊置在該觸摸部ιι〇 下方的連接部120及一採樣部140。該觸摸部no由彈性非 導電橡膠製成，可靈敏地感受外部壓力，並且可起到防水 保護的功能。該連接部120用於將該按鍵1〇〇固定在一電 子裝置（未圖示）上並實現該按鍵1〇〇與該電子裝置（未 圖不）的電連接。該觸摸部110與該連接部120之間形成 一密閉的容置腔U0,該採樣部14〇固定於該容置腔13〇 中。在本實施方式中，該按鍵100為一電視機面板上的按 5 201040998 該採樣部140包括第一導電層141，第二導電層142， •空氣絕緣層143，第一採樣器144，第二採樣器145，處理 器146及電源150。 該第一導電層141及第二導電層142平行設置且為均 勻電阻材料。該第一導電層141與第二導電層142的阻值 相等。該第一導電層141包括相對的第一端141x及第二端 141y，該第二導電層142包括相對的第三端142x及第四端 142y。該第一端141x及第三端142x位於該第一導電層141 ❹及第二導電層142的同一側，該第二端141y及第四端142y 位於該第一導電層141及第二導電層142的另一側。該空 氣絕緣層143位於該第一導電層141及第二導電層142之 間。在本實施方式中，該第二導電層142面向該第一導電 層141的表面上的第三端142x及第四端142y上設置有複 數由絕緣材料製成的支撐柱143a，從而形成該空氣絕緣層 143 ° 0 如圖4所示，該第一導電層141與第一採樣器144串 聯形成的支路與第二導電層142與第二採樣器145串聯形 成的支路相並聯。該電源150包括第一極150a及第二極 150b。該第一端141x藉由第一採樣器144與該電源150的 第一極150a電連接，該第二導電層142的第四端142y藉 由第二採樣器145與該電源150的第一極150a電連接，該 第二端141y及第三端142x均直接與該電源150的第二極 150b電連接。在本實施方式中，該第一極150a為正極，該 第二極150b為負極。可以理解，在其他的實施方式中，該 201040998 第一極150a為負極，該第二極150b為正極。 • 該處理器146與該第一採樣器144及第二採樣器145 電連接，其内部存儲有第一採樣器144及第二採樣器145 的訊號變化方式所對應的功能表，其用於分析第一採樣器 144及第二採樣器145所採集到的訊號變化方式並藉由查 詢其内部存儲的與該訊號變化方式對應的功能表，發出相 應的指令，使該電子裝置（未圖示）執行相應的功能。在 本實施方式中，該第一採樣器144及第二採樣器145均為 ®電流檢測器。 如圖5所示，當該觸摸部110被一個手指觸摸時，該 第一導電層141及第二導電層142在第一觸摸點161位置 相接觸，以該第一觸摸點161的位置為界線，從該電源150 的第一極150a到第二極150b，該第一導電層141被分為第 一電阻部141a及第二電阻部141b;從該電源150的第二極 150b到第一極150a，該第二導電層142被分為第三電阻部 a 142a及第四電阻部142b。該第一電阻部141a的阻值為R11， 該第二電阻部141b的阻值為R12,該第三電阻部142a的阻 值為R13，該第四電阻部142b的阻值為R14，該第一導電 層141及第二導電層142的總電阻相等，均為R，即 R11+R12=R，R13 + R14=R。該電源150的電壓為U。因此， 如圖5所示的電路圖可等效為如圖6所示的電路圖，即第 一電阻部141a與第四電阻部142b並聯，第二電阻部141b 與第三電阻部142a並聯，然後上述兩者相串聯，因此該第 一採樣器144採集到的就係流經第一電阻部141a的電流 201040998 -Ill，該第二採樣器145所採集到的就係流經第四電阻部 -142b的電流112。由於第一導電層141與第二導電層142 之間的距離相隔很小且該第一導電層141與第二導電層 142為均勻電阻材料，因此該觸摸部110被一個手指觸摸 時，R11 = R13且R12=R14，因此第一電阻部141a與第四電 阻部142b並聯所得到的阻值等於第二電阻部141b與第三 電阻部142a並聯所得到的阻值，從而得到第一觸摸點161 的電壓U01不會發生變化，始終係電源150的電壓U的一 ❹半，即U01=U/2。該第一採樣器144中的電流值 I11=U01/R11 ，該第二採樣器 145 中的電流值 I12=U01/R14,因此第一採樣器144所採集到的電流111的 變化趨勢僅由第一電阻部141a的阻值R11的變化趨勢決 定，第二採樣器145所採集到的電流112的變化趨勢僅由第 四電阻部142b的阻值R14的變化趨勢決定，且當R11逐漸 增大的過程中，111逐漸減小；當R14逐漸增大的過程中， 0 112逐漸減小，反之亦然。當該用戶用一個手指在該觸摸部 110上滑動時，該第一觸摸點161的位置發生變化，使該第 一電阻部141a、第二電阻部141b、第三電阻部142a及第 四電阻部142b的阻值發生變化，從而使該第一採樣器144 及第二採樣器145所採集到的電流訊號發生變化。 如圖5所示，當用戶用一個手指在該觸摸部110上滑 動時，該第一採樣器144及第二採樣器145的電流訊號的 變化可分為多種，例如： (1 )當用戶的一個手指在該觸摸部110上朝該第一採 201040998 樣器144的方向滑動觸摸時，該第一電阻部141a的阻值Rll •及第三電阻部142a的阻值R13同時減小，從而使該第一採 樣器144中的電流值111增大。同時該第二電阻部141b的 阻值R12及第四電阻部142b的阻值R14同時增大，從而使 該第二採樣器145中的電流值112減小。在本實施方式中， 此項操作可實現快速靜音的功能。 (2)當用戶的一個手指在該觸摸部110上朝該第二採 樣器145的方向滑動觸摸時，該第一電阻部141a的阻值R11 〇及第三電阻部142a的阻值R13同時增大，從而使該第一採 樣器144中的電流值111減小。同時該第二電阻部141b的 阻值R12及第四電阻部142b的阻值R14同時減小，從而使 該第二採樣器145中的電流值112增大。在本實施方式中， 此項操作可實現解除靜音的功能。 如圖7所示，當觸摸部110被兩個手指同時觸摸時， 該第一導電層141及第二導電層142在第二觸摸點162及 ❹第三觸摸點163的位置相接觸，以該第二觸摸點162及第 三觸摸點163為界線，從該電源150的第一極150a到第二 極150b，該第一導電層141被分為第五電阻部141c、第六 電阻部141d及第七電阻部141e三部分；從該電源150的 第二極150b到第一極150a，該第二導電層142被分為第八 電阻部142c，第九電阻部142d及第十電阻部142e。且該 第五電阻部141c的阻值為R21，第六電阻部141d的阻值為 R22，第七電阻部141e的阻值為R23，第八電阻部142c的 阻值為R24，第九電阻部142d的阻值為R25，第十電阻部 9 201040998 142e 的阻值為 R26 ，則 R21+R22+R23=R ， • R24 + R25+R26 = R。因此，如圖7所示的電路圖可等效為如 圖8所示的電路圖。當觸摸部110被兩個手指同時觸摸時， R21=R24，R22=R25，R23=R26，且 R21+R22+R23=R， R24+R25+R26=R。第一採樣器144所在支路的總電阻為 R10，第二採樣器145所在支路的總電阻為R20,經分析 R10=R21+(R22+R23)R24/(R22+R23 + R24) = (2R21R-R212)/R ,R20=R26 + (R24+R25)R23/(R23+R24 + R25) = (2R26R-R262)/ ❹R，第一採樣器144所採集到的電流I21=U/R10，第二採樣 器145所採集到的電流I22=U/R20，因此第一採樣器144 所採集到的電流121的變化趨勢僅由第五電阻部141c的阻 值R21的變化趨勢決定，第二採樣器145所採集到的電流 122的變化趨勢僅由第十電阻部142e的阻值R26的變化趨 勢決定，且當第五電阻部141c的阻值R21由0增加到R的 過程中，121逐漸減小；當第十電阻部142e的阻值R26由 ❹0增加到R的過程中，122逐漸減小’反之亦然。 當用戶用兩個手指同時在該觸摸部上滑動時，該 第一採樣器144及第二採樣器145的電流訊號的變化可分 為多種，例如： (1)當用戶的兩個手指在該觸摸部110上由該第一導 電層141的中點位置分別朝第一採樣器144及第二採樣器 145的方向同時滑動觸摸時’該第五電阻部141c及第八電 阻部142c的阻值同時由R/2逐漸減小為〇，從而使該第一 採樣器144中的電流值121增大。且該第七電阻部I4le及 201040998 苐十電阻部142e的阻值同時由说、私 “ .口 /逐漸減小為0,從而使 '^第一採樣器145中的電流值122 ；t秘大。y· 士廉 lL 值1立曰大。在本實施方式中， 匕項操作可實現將電視機螢幕打開的功能。 ，（2)當用戶的兩個手指在該觸摸部ιι〇上分別 一 Ο 知樣器144及第二採樣器145的位置朝該第一導電層⑷ 的中點位置滑動觸摸時，該第五電阻部141(^第八^_ ! 4 2 c的阻值同時由G逐漸增大為R / 2，從而使該第一採樣 144中的電流值121減小。且該第七電阻部卫仏及第十 電阻部⑽的阻值同時增大，從而使該第二採樣器145中 的電流值122減小。在本實施方式中卜 刀忒T此項操作可實現將電 視機螢幕關閉的功能。 (3) 當用戶的其中—隻手指由第—採樣器144的位置 朝該第二採樣器145的方向滑動觸摸，且該用戶的另一隹 f指觸摸在該觸摸部110上不動時，該第五電阻部141c^ 第八電阻部142c的阻值同時由〇逐漸增大為R，從而使該 〇第:採樣器U4中的電流值121減小。且該第七電阻部uid 及第十電阻部142d的阻值不變，從而使第二採樣器145中 的電机值122不憂。在本實施方式中’此項操作可實現進入 k擇功此表，並且在選擇功能表上向右移動進行選擇。 (4) 當用戶的其中一隻手指由該第一導電層ΐ4ι上靠 近該第二採樣器145的位置朝第一採樣器144的方向滑動 觸摸，且該用戶的另一隻手指觸摸在該觸摸部110上不動 時’該第五電阻部141c及第八電阻部142c的阻值同時由R 逐漸減小為〇’從而使該第一採樣器144中的電流值i2i增 11 201040998 大。且該第七電阻部141e及第十電阻部142e的阻值不變， 從而使第二採樣器145的電流值122不變。在本實施方式 中此項操作可實現進入選擇功能表，並且在選擇功能表 上向左移動進行選擇。 (5)當用戶的其中一隻手指觸摸在該觸摸部110上不 動：且該用戶的另-隻手指由該第二採樣器145的位置朝 δ亥第一私樣器144的位置滑動觸摸時，該第五電阻部141c :第八電阻部l42c的阻值不變’從而使該第—採樣器i44 中的電流值121不變。同時該第七電阻部14u及第十電阻 4 142e的阻值同時由〇增大為R，從而使第 中的電流值122減，〗、。扃太奢故士斗、士 , 在本實施方式中，此項操作可實現進 入被選中的功能表中，比如對比度調節，並將對比度逐漸 ⑷田用戶的其中—隻手指觸摸在該觸摸部110上不 動且°亥用戶的另一隻手指由該該第一導電層141上靠近 〇 s第採樣器144的位置朝該第二採樣器 五電阻部i4ic及第八電阻部：的= 從而使該第一採樣器144中的電流信彳 第七電阻部141e及第十電阻121不變。同時該 、出丨“ / 弟十電阻邛142e的阻值同時由R逐漸 :二為二從而使第二採樣器145中的電流值i22增大。在 本實施方式令，此項操作可實現進入被選中的功能表令， 比如對比度調節，並將對比度逐漸調大。 $㈣按鍵’由於用戶的手指滑動方式的不同，該 第一導電層及第二導電層的接觸點的位置不同，使該第一 201040998 .採樣器及第二採樣器所採集到的訊號不同，該處理器對第 -採樣ι§及第二採樣器所採制的訊號變化方式進行分析 判斷，並根據該訊號變化方式發出指令使電子裝置執行相 應的功能’從而使-個按鍵可實現多種不同的功能，結構 簡單，實用性強。 另外，本領域技術人員可在本發明精神内做其他變 化’但是，凡依據本發明精神實質所做的變化，都應包含 在本發明所要求保護的範圍之内。 ❹ 【圖式簡單說明】 圖1係本發明實施方式提供的按鍵的示意圖； 圖2係圖1的按鍵的分解圖； 圖3係圖1的按鍵沿ΠΙ-ΙΙΙ方向的剖視圖； 圖4係圖1的按鍵的採樣部的内部電路結構示意圖； 圖5係圖1的按鍵的採樣部的一種工作狀態的内部電 ❹路結構示意圖； 圖6係圖5的等效電路圖； 圖7係圖1的按鍵的採樣部的另一種工作狀態的内部 電路結構示意圖； 圖8係圖7的等效電路圖。 觸摸部 容置腔 110 【主要元件符號說明】 按鍵 100 連接部 13 130 201040998 採樣部 140 第一端 141χ 第一電阻部 141a 第五電阻部 141c 第七電阻部 141e 第三端 142x 第三電阻部 142a 第八電阻部 142c ❹第十電阻部 142e 支撐柱 143a 第二採樣器 145 電源 150 第二極 150b 第二觸摸點 162 第一導電層 141 第二端 141y 第二電阻部 141b 第六電阻部 141d 第二導電層 142 第四端 142y 第四電阻部 142b 第九電阻部 142d 空氣絕緣層 143 第一採樣器 144 處理器 146 第一極 150a 第一觸摸點 161 第三觸摸點 163 Ο 14201040998 • VI. Description of the invention: 'Technical field to which the invention pertains» The present invention relates to a button. [Prior Art] The key system is a basic control device widely used in various electronic products. For example, the TV panel controls the opening of the honor screen, closes the honor screen, enters the selection menu, exits the selection menu, selects a function. The table also performs the keystrokes of various functions, but most of the current buttons can only perform a certain function, so to implement the above multiple functions, it is necessary to separately set the functions, and then set a plurality of keys, thereby As a result, it is more time-consuming to assemble the plurality of buttons to the electronic=, especially with the gradual introduction of the small electronic devices, the design of the plurality of buttons brings great trouble to the design of the electronic device. SUMMARY OF THE INVENTION It is necessary to provide a multifunctional button. A button includes a touch portion and a button. 4 ^ y Feel the external pressure.搡 搡 二 二 二 二 二 二 二 二 二 二 二 二 二 二 二 二 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该The third end and the fourth end are located at the first end and the third end; the conductive layer and the second conductive 屛-w~the second conductive end of the first conductive layer and the second electric current And the fourth end is located at the sampler and the first pole of the power supply; connected: one:: the first end is connected through the first electrical connection, and the fourth end is connected by the second sampling 4 201040998 with the first pole of the power supply The second end and the third end are electrically connected directly to the second pole of the power source. The processor is electrically connected to the first sampler and the second sampler, and is configured to analyze a signal change manner collected by the first sampler and the second sampler, and issue corresponding instructions according to the signal change manner to make an electronic The device performs the corresponding function. The button of the present invention has different signals collected by the first sampler and the second sampler according to different positions of the contact points of the first conductive layer and the second conductive layer, and the processor pairs the sampler and the sampler The signal change mode collected by the second sampler is analyzed and judged, and i emits a heart according to the change mode of the signal to enable the electronic device to perform a corresponding function, so that one button can realize a plurality of different functions, and the structure is simple and practical. [Embodiment] Hereinafter, the present invention will be further described in detail with reference to the accompanying drawings. 1 to 3′ are the buttons 〇1〇〇 provided by the embodiment of the present invention, the button 1〇〇 includes a touch portion 11〇, a connecting portion 120 stacked under the touch portion ιι and a sampling Part 140. The touch portion no is made of elastic non-conductive rubber, which is sensitive to external pressure and functions as a waterproof protector. The connecting portion 120 is for fixing the button 1 to an electronic device (not shown) and electrically connecting the button 1 to the electronic device (not shown). A sealed receiving cavity U0 is formed between the touch portion 110 and the connecting portion 120. The sampling portion 14 is fixed in the receiving cavity 13A. In this embodiment, the button 100 is a button on a television panel. 5 201040998 The sampling portion 140 includes a first conductive layer 141, a second conductive layer 142, an air insulating layer 143, a first sampler 144, and a second Sampler 145, processor 146 and power supply 150. The first conductive layer 141 and the second conductive layer 142 are disposed in parallel and are uniform resistive materials. The first conductive layer 141 and the second conductive layer 142 have the same resistance. The first conductive layer 141 includes an opposite first end 141x and a second end 141y, and the second conductive layer 142 includes an opposite third end 142x and a fourth end 142y. The first end 141x and the third end 142x are located on the same side of the first conductive layer 141 ❹ and the second conductive layer 142, and the second end 141 y and the fourth end 142 y are located on the first conductive layer 141 and the second conductive layer The other side of 142. The air insulating layer 143 is located between the first conductive layer 141 and the second conductive layer 142. In this embodiment, the second conductive layer 142 faces the third end 142x and the fourth end 142y of the surface of the first conductive layer 141 and is provided with a plurality of support columns 143a made of an insulating material to form the air. The insulating layer 143 ° 0, as shown in FIG. 4, the branch formed by the first conductive layer 141 in series with the first sampler 144 and the branch formed by the second conductive layer 142 and the second sampler 145 in series are connected in parallel. The power supply 150 includes a first pole 150a and a second pole 150b. The first end 141x is electrically connected to the first pole 150a of the power source 150 by the first sampler 144. The fourth end 142y of the second conductive layer 142 is coupled to the first pole of the power source 150 by the second sampler 145. The second end 141y and the third end 142x are electrically connected directly to the second pole 150b of the power source 150. In the present embodiment, the first pole 150a is a positive electrode, and the second pole 150b is a negative electrode. It can be understood that in other embodiments, the 201040998 first pole 150a is a negative pole and the second pole 150b is a positive pole. The processor 146 is electrically connected to the first sampler 144 and the second sampler 145, and internally stores a function table corresponding to the signal change mode of the first sampler 144 and the second sampler 145, which is used for analysis. The signal change pattern collected by the first sampler 144 and the second sampler 145 is sent to the electronic device (not shown) by querying a function table stored therein corresponding to the signal change mode and issuing a corresponding command. Perform the appropriate function. In the present embodiment, the first sampler 144 and the second sampler 145 are both ® current detectors. As shown in FIG. 5, when the touch portion 110 is touched by one finger, the first conductive layer 141 and the second conductive layer 142 are in contact at the first touch point 161, and the position of the first touch point 161 is used as a boundary. From the first pole 150a of the power source 150 to the second pole 150b, the first conductive layer 141 is divided into a first resistor portion 141a and a second resistor portion 141b; from the second pole 150b of the power source 150 to the first pole 150a, the second conductive layer 142 is divided into a third resistor portion 142a and a fourth resistor portion 142b. The resistance of the first resistor portion 141a is R11, the resistance of the second resistor portion 141b is R12, the resistance of the third resistor portion 142a is R13, and the resistance of the fourth resistor portion 142b is R14. The total resistance of a conductive layer 141 and the second conductive layer 142 are equal, and are all R, that is, R11+R12=R, and R13+R14=R. The voltage of the power source 150 is U. Therefore, the circuit diagram shown in FIG. 5 can be equivalent to the circuit diagram shown in FIG. 6, that is, the first resistance portion 141a is connected in parallel with the fourth resistance portion 142b, and the second resistance portion 141b is connected in parallel with the third resistance portion 142a, and then the above The two are connected in series, so that the first sampler 144 collects the current 201040998-I11 flowing through the first resistor portion 141a, and the second sampler 145 collects the current through the fourth resistor portion-142b. Current 112. Since the distance between the first conductive layer 141 and the second conductive layer 142 is small and the first conductive layer 141 and the second conductive layer 142 are uniform resistive materials, when the touch portion 110 is touched by one finger, R11 = R13 and R12=R14, so that the resistance obtained by connecting the first resistor portion 141a and the fourth resistor portion 142b in parallel is equal to the resistance value obtained by connecting the second resistor portion 141b and the third resistor portion 142a in parallel, thereby obtaining the first touch point 161. The voltage U01 does not change, and is always one and a half of the voltage U of the power source 150, that is, U01=U/2. The current value I11=U01/R11 in the first sampler 144, the current value I12=U01/R14 in the second sampler 145, so the current trend of the current 111 collected by the first sampler 144 is only by the first The change trend of the resistance value R11 of the one resistor portion 141a is determined, and the variation trend of the current 112 collected by the second sampler 145 is determined only by the change trend of the resistance value R14 of the fourth resistor portion 142b, and when R11 is gradually increased. During the process, 111 gradually decreases; as R14 gradually increases, 0 112 gradually decreases, and vice versa. When the user slides on the touch portion 110 with one finger, the position of the first touch point 161 changes, and the first resistance portion 141a, the second resistance portion 141b, the third resistance portion 142a, and the fourth resistance portion are changed. The resistance of 142b changes, so that the current signals collected by the first sampler 144 and the second sampler 145 are changed. As shown in FIG. 5, when the user slides on the touch portion 110 with one finger, the changes of the current signals of the first sampler 144 and the second sampler 145 can be divided into various types, for example: (1) when the user When a finger is slidably touched in the direction of the first finder 201040998 144 on the touch portion 110, the resistance R11 of the first resistor portion 141a and the resistance R13 of the third resistor portion 142a are simultaneously reduced, thereby The current value 111 in the first sampler 144 is increased. At the same time, the resistance value R12 of the second resistance portion 141b and the resistance value R14 of the fourth resistance portion 142b are simultaneously increased, so that the current value 112 in the second sampler 145 is decreased. In the present embodiment, this operation can realize the function of fast mute. (2) When a finger of the user slides on the touch portion 110 in the direction of the second sampler 145, the resistance R11 of the first resistor portion 141a and the resistance R13 of the third resistor portion 142a increase simultaneously. Large, thereby reducing the current value 111 in the first sampler 144. At the same time, the resistance R12 of the second resistor portion 141b and the resistance value R14 of the fourth resistor portion 142b are simultaneously decreased, thereby increasing the current value 112 in the second sampler 145. In the present embodiment, this operation can implement the function of releasing the mute. As shown in FIG. 7 , when the touch portion 110 is simultaneously touched by two fingers, the first conductive layer 141 and the second conductive layer 142 are in contact with each other at the positions of the second touch point 162 and the third touch point 163. The second touch point 162 and the third touch point 163 are boundary lines. The first conductive layer 141 is divided into a fifth resistance portion 141c and a sixth resistance portion 141d from the first pole 150a to the second pole 150b of the power source 150. The seventh resistor portion 141e has three portions. The second conductive layer 142 is divided into an eighth resistor portion 142c, a ninth resistor portion 142d and a tenth resistor portion 142e from the second pole 150b of the power source 150 to the first pole 150a. The resistance of the fifth resistor portion 141c is R21, the resistance of the sixth resistor portion 141d is R22, the resistance of the seventh resistor portion 141e is R23, and the resistance of the eighth resistor portion 142c is R24, and the ninth resistor portion is The resistance of 142d is R25, and the resistance of the tenth resistor part 9 201040998 142e is R26, then R21+R22+R23=R, • R24 + R25+R26 = R. Therefore, the circuit diagram shown in Fig. 7 can be equivalent to the circuit diagram shown in Fig. 8. When the touch portion 110 is simultaneously touched by two fingers, R21 = R24, R22 = R25, R23 = R26, and R21 + R22 + R23 = R, R24 + R25 + R26 = R. The total resistance of the branch where the first sampler 144 is located is R10, and the total resistance of the branch of the second sampler 145 is R20. After analysis, R10=R21+(R22+R23)R24/(R22+R23 + R24) = (2R21R -R212)/R , R20=R26 + (R24+R25)R23/(R23+R24 + R25) = (2R26R-R262)/ ❹R, the current I21=U/R10 collected by the first sampler 144, The current I22=U/R20 collected by the second sampler 145, so the variation trend of the current 121 collected by the first sampler 144 is determined only by the change trend of the resistance R21 of the fifth resistance portion 141c, and the second sampler The variation trend of the current 122 collected by 145 is determined only by the change trend of the resistance value R26 of the tenth resistance portion 142e, and is gradually decreased in the process of increasing the resistance value R21 of the fifth resistance portion 141c from 0 to R. When the resistance value R26 of the tenth resistance portion 142e is increased from ❹0 to R, 122 is gradually decreased, and vice versa. When the user slides on the touch portion with two fingers at the same time, the changes of the current signals of the first sampler 144 and the second sampler 145 can be divided into various types, for example: (1) when the user's two fingers are in the When the midpoint position of the first conductive layer 141 is simultaneously slid in the direction of the first sampler 144 and the second sampler 145, the resistance values of the fifth resistor portion 141c and the eighth resistor portion 142c are respectively displayed on the touch portion 110. At the same time, R/2 is gradually reduced to 〇, so that the current value 121 in the first sampler 144 is increased. And the resistance values of the seventh resistor portion I4le and the 201040998 苐10 resistor portion 142e are simultaneously reduced from 0 to 0, so that the current value in the first sampler 145 is 122; y· Shilian lL value is 1 large. In this embodiment, the operation can realize the function of turning on the TV screen. (2) When the user's two fingers are respectively on the touch part ιι第五 When the position of the sampler 144 and the second sampler 145 is slid and touched toward the midpoint position of the first conductive layer (4), the resistance of the fifth resistor portion 141 (^8^_! 4 2 c is simultaneously by G Gradually increasing to R / 2, so that the current value 121 in the first sample 144 is decreased, and the resistance values of the seventh resistor portion and the tenth resistor portion (10) are simultaneously increased, thereby making the second sample The current value 122 in the device 145 is reduced. In the present embodiment, the operation of the screen of the television can be realized by the operation of the knife T. (3) When the position of the user-only finger is from the first sampler 144 When the touch is slid in the direction of the second sampler 145, and another 隹f finger of the user is not moved on the touch portion 110, The resistance value of the fifth resistance portion 141c^the eighth resistance portion 142c is gradually increased from 〇 to R, so that the current value 121 in the sampler U4 is decreased, and the seventh resistance portion uid and the tenth The resistance value of the resistor portion 142d is unchanged, so that the motor value 122 in the second sampler 145 is not worried. In the present embodiment, 'this operation can realize entering the k-action table and on the selection function table Move to the right to make a selection. (4) When one of the user's fingers is swiped by the first conductive layer 靠近4ι near the second sampler 145 toward the first sampler 144, and the other of the user When the finger touch is not moved on the touch portion 110, the resistance values of the fifth resistor portion 141c and the eighth resistor portion 142c are gradually decreased from R to 〇', so that the current value i2i in the first sampler 144 is increased by 11 201040998 is large, and the resistance values of the seventh resistor portion 141e and the tenth resistor portion 142e are unchanged, so that the current value 122 of the second sampler 145 is unchanged. In this embodiment, the operation can realize the entry selection function table. And move to the left on the selection menu to make a selection. (5) When When one of the user's finger touches the touch portion 110 does not move: and the other finger of the user is slidably touched by the position of the second sampler 145 toward the position of the first sampler 144, the fifth The resistance portion 141c: the resistance value of the eighth resistor portion l42c does not change, so that the current value 121 in the first sampler i44 is unchanged. At the same time, the resistance values of the seventh resistor portion 14u and the tenth resistor 4 142e are simultaneously caused by Increasing to R, so that the current value 122 in the middle is reduced, 〖, 扃 too extravagant, and in this embodiment, this operation can be entered into the selected function table, such as contrast adjustment And gradually contrasting (4) the user's one-finger touch on the touch portion 110 and the other finger of the user is located on the first conductive layer 141 near the 〇s sampler 144 toward the The second sampler has a fifth resistance portion i4ic and an eighth resistance portion: so that the current signal in the first sampler 144 is unchanged from the seventh resistance portion 141e and the tenth resistance portion 121. At the same time, the resistance value of the "/10" resistor 142e is gradually increased from R: two to two, so that the current value i22 in the second sampler 145 is increased. In this embodiment, the operation can be realized. The selected function menu, such as contrast adjustment, and gradually increase the contrast. $(4) Button 'Because the user's finger sliding mode is different, the position of the contact point of the first conductive layer and the second conductive layer is different, so that The first 201040998. The sampler and the second sampler collect different signals, and the processor analyzes and judges the signal change mode adopted by the first sample and the second sampler, and according to the signal change manner. The instruction is issued to enable the electronic device to perform the corresponding function', so that the - button can realize a plurality of different functions, and the structure is simple and practical. Further, those skilled in the art can make other changes within the spirit of the present invention. Changes made to the spirit of the invention are intended to be included in the scope of the invention. ❹ [Simplified description of the drawings] FIG. 1 is a press diagram provided by an embodiment of the present invention. Figure 2 is an exploded view of the button of Figure 1; Figure 3 is a cross-sectional view of the button of Figure 1 along the ΠΙ-ΙΙΙ direction; Figure 4 is a schematic diagram of the internal circuit structure of the sampling portion of the button of Figure 1; Figure 5 is Figure 1 FIG. 6 is an equivalent circuit diagram of FIG. 5; FIG. 7 is a schematic diagram of an internal circuit structure of another working state of the sampling portion of the button of FIG. 1; FIG. Figure 7 is an equivalent circuit diagram. Touch unit housing cavity 110 [Description of main component symbols] Button 100 Connection portion 13 130 201040998 Sampling unit 140 First end 141 χ First resistor portion 141a Fifth resistor portion 141c Seventh resistor portion 141e Three-terminal 142x third resistance portion 142a eighth resistance portion 142c ❹ tenth resistance portion 142e support column 143a second sampler 145 power supply 150 second pole 150b second touch point 162 first conductive layer 141 second end 141y second resistance Portion 141b sixth resistor portion 141d second conductive layer 142 fourth end 142y fourth resistor portion 142b ninth resistor portion 142d air insulating layer 143 first sampler 144 processing 146 first pole 150a of the first touch point 161 of the third touch point 163 Ο 14