201233867 六、發明說明： 【發明所屬之技術領域】 本發明的實施形態是有關洗衣機。 【先前技術】 在實行由複數的設定內容所選擇的1個設定內容的& 衣機中，因爲可選擇的設定內容（運轉模式、運轉洗@ ( course )等）的數量增加，需要依設定內容連續按壓 作鍵來選擇設定內容。 爲了省去此麻煩，有在面板設置藉由轉動來操作 作旋扭，作爲變更操作手段，按照該操作旋扭的轉動 擇所望的設定內容者。作爲操作旋扭的構造，例如有·胃利j 文獻1所示者。 [先行技術文獻] [專利文獻] [專利文獻1]特開2007 - 1 8523 7號公報 【發明內容】 (發明所欲解決的課題） 然後，就上述構成而言，操作旋扭需要以手夾著轉動 操作，因此對於面板平面而言操作旋扭會成爲突出者，此 突出的操作旋扭會有使外觀變差的問題。 並且，爲了在面板設置操作旋扭，需要形成貫通孔， -5- 201233867 因此防水對策成爲必要，亦有其防水構造變複雜的問題。 於是，以提供一種在面板具備設定內容的變更操作手 段者中可使面板平面化美化外觀且可容易進行防水對策的 洗衣機爲目的》 (用以解決課題的手段） 本實施形態的洗衣機係具備： 面板，其係設於洗衣機本體； 顯示部，其係設於此面板，顯示有關運轉條件的設定 內容；及 設定內容變更操作手段，其係設於前述面板.，用以變 更操作被顯示於前述顯示部的前述設定內容， 其特徵爲： 前述設定內容變更操作手段係具備： 觸控操作部，其係設於前述面板，將表面設爲用以使 手指接觸來操作的觸控操作面； 靜電電容式的複數個觸控檢測用電極，其係排列設於 此觸控操作部的背側，檢測出手指對前述觸控操作面的操 作；及 顯示控制手段，其係根據按照手指對於前述觸控操作 面的移動而輸出之來自前述複數個觸控檢測用電極的檢測 訊號，來使被顯示於前述顯示部的前述設定內容變更。 藉此，可提供一種可容易變更設定內容的同時，使面 板平面化而美化外觀，且可容易進行防水對策的洗衣機。 -6 - 201233867 【實施方式】 [第1實施形態] 以下’參照圖1〜圖7來說明將本發明適用於滾筒式洗 衣烘乾機的第1實施形態。 如圖2所示，構成洗衣烘乾機1的外廓之洗衣機本體 2是形成前面流暢地傾斜的大致矩形箱狀。在洗衣機本體 2的上面設有給水口 3及頂板4。在洗衣機本體2的前面 中央部設有門5,在此門5的上部是設有用以打開門5的 門按鈕6。 並且，在洗衣機本體2的前面上部設有由合成樹脂所 構成的面板7及洗劑類投入部8。面板7的表面是形成前 低後高之順暢的曲面狀，在面板7的背側設有作爲顯示控 制手段的顯示用控制裝置9 (只在圖6圖示）。 在面板7中，如圖3所示，右端設有電源「開」鍵1 〇 及電源「關」鍵11，在其左邊設有用以選擇洗衣、洗衣烘 乾（洗乾）、烘乾的各運轉的模式之運轉模式鍵12〜14、 及顯示門5被鎖成關閉的狀態之門鎖顯示部1 5。 在各運轉模式鍵12〜14分別具有照明部12a~14a。該 等照明部12a〜14a及門鎖顯示部15是藉由LED的背光源 來照明。 在運轉模式鍵12〜14的左邊，觸控操作部16會與面 板7 —體設置。此觸控操作部16的表面會成爲用以使手 指接觸來操作的觸控操作面17。 201233867 觸控操作部16是如圖1所示般，表面的觸控操作面 17會形成沿著周圍的面板7的表面之曲面狀，且在背面設 有形成平面狀的平面部16a。在觸控操作面17的中央設有 起動操作部17a，在此起動操作部i7a的周圍設置具有旋 扭機能的觸控旋扭部17b。 並且，在觸控操作面17上，亦如圖4所示般，設有 肋條18。肋條18是具有：設成包圍起動操作部17a的周 圍之環部1 8a、及由此環部1 8a往外側延伸成放射狀之8 根的棒狀部1 8b，此棒狀部18b是將觸控旋扭部1 7b區分 成8等分。 此觸控旋扭部17b是用以釋行有關運轉條件的設定內 容之一個的運轉洗程的選擇或預約時間的設定等者，又， 起動操作部17a是用以進行運轉洗程的開始及實行中的運 轉洗程的暫停者。 有關觸控操作部16的內部構成會在往後敘述。 回到圖3，在位於觸控操作部16的觸控操作面17的 左下之面板7的背側設有蜂鳴器1 9。 然後，更在蜂鳴器19所位置的左邊設有顯示運轉洗 程的運轉洗程顯示部20 (顯示部），且其左邊設有顯示其 他設定內容的顯示部21 » 在此顯示部21的下方設有用以選擇洗衣、清洗、脫 水 '烘乾的各行程的次數或時間等的行程鍵22〜25、用以 選擇有無洗澡水的使用的洗澡水鍵26、及用以選擇計時器 預約時間的預約鍵2 7。 -8 - 201233867 其次，說明有關觸控操作部16的內部構成。如圖1 所示，在突出至面板7的背側而設的圓筒狀的筒部28 (參 照圖5 )內，使觸控感測器單元29在觸控感測器單元29 的表面緊貼於觸控操作部16的背面的平面部16a的狀態 下安裝於觸控操作部16的背側。觸控感測器單元29是在 圓筒狀的盒子30內收納圓形狀的基板31、觸控檢測用電 極32、觸控感測器用IC33、連接器34、及振動子35來構 成。 觸控感測器單元29是使設在盒子30的外周面的凹部 3〇a嵌合於設在筒部28的內周面的凸部28b而固定，在使 卡合於複數個可彈性變形的卡合爪部28a下保持。 在基板3 1的上面，位於觸控操作部16的背側，排列 設有靜電電容式的複數個觸控檢測用電極3 2。此觸控檢測 用電極3 2是用以檢測出手指接觸於觸控操作面1 7的情形 e 在基板31的背面設有觸控感測器用IC33、連接器34 、2個的振動子35(在圖1是僅一方圖示）。基板31是 經由連接器34來電性連接至顯示用控制裝置9 (參照圖6 )° 觸控檢測用電極3 2的上面是例如藉由合成樹脂所構 成的保護構件36來覆蓋。此保護構件36的表面平坦，緊 貼於觸控操作部1 6的背面的平面部1 6a。 並且，基板3 1的背側，爲了防止溼氣侵入至觸控感 測器用IC33，而以防溼用樹脂37所覆蓋。 201233867 圖4是由正面來看觸控操作部16的圖，觸控操作部 16的背側的觸控檢測用電極32及觸控感測器用IC33、連 接器34、振動子35的配置是以虛線來表示。 觸控檢測用電極32是在中央配置有圓形狀的起動用 電極32a ( D0 )，在此起動用電極32a ( D0 )的周圍環狀 地排列有8個扇狀的觸控旋扭用電極32b ( D1〜D8 )。 起動用電極3 2a (D0)是配置在對應於起動操作部 17a的位置，8個的觸控旋扭用電極32b(Dl~D8)是配置 在對應於劃分成8等分的觸控旋扭部17b的位置。 並且，肋條18的棒狀部18b是由面板7的正面來看 ，配設成跨越位於面板7的背側之相鄰的2個觸控旋扭用 電極32b。 並且，觸控感測器用IC3 3與連接器34是在基板31 的背面，以能夠夾著中央的起動用電極32a (D0)的方式 位置而配置於上下，2個的振動子35是被配置於左右。 圖6是表示本實施形態的主要部分的電氣構成。在顯 示用控制裝置9是經由開開關38、關開關39、觸控感測 器用IC33來輸入來自起動用電極32a、觸控旋扭用電極 32b、及其他開關40的訊號。 然後，顯示用控制裝置9會根據該等的輸入訊號來控 制照明部12a〜14a、門鎖顯示部15、顯示部20、21、振動 子3 5、蜂鳴器丨9，且往主控制裝置4 1輸入訊號。主控制 裝置41是控制洗衣烘乾機1的動作全體者。 開開關38及關開關39是分別藉由操作電源「開」鍵 -10- 201233867 10及電源「關」鍵11來對顯示用控制裝置9輸入訊號。 其他的開關40是藉由操作各操作鍵12〜14、22〜27來對顯 示用控制裝置9輸入訊號。 顯示用控制裝置9是藉由操作觸控操作部16的觸控 旋扭部17b來使蜂鳴器19及振動子35動作，變更顯示於 顯示部20、21的設定內容。 在圖7所示的觸控檢測電路中，可在觸控感測器用 IC33連接複數的觸控檢測用電極32，本實施形態是連接1 個的起動用電極32a(D0)及8個的觸控旋扭用電極32b (D1〜D8)。 在起動用電極32a ( D0)是設有感應器電路42，此感 應器電路42是具備：被串聯於端子P1與接地之間的充電 用電容器43、放電用電阻44、及被連接於端子P1與P2 之間的固定電容器45，端子P2是被連接至起動用電極 32a ( DO)。 在8個的觸控旋扭用電極32b (D1〜D8)亦分別連接 有感應器電路42。 當使用者的手指接觸於觸控操作面17的起動操作部 17a時，藉由人體的靜電電容，觸控檢測用電極32a (D0 )會形成經由電容器46來連接至接地的狀態，在該觸控 檢測用電極32a ( D0 )產生電壓，觸控感測器用IC33會 將檢測訊號送往顯示用控制裝置9。 並且，當使用者使手指移動至觸控操作面17的觸控 旋扭部17b而令接觸時，也同樣在觸控旋扭用電極32b( -11 - 201233867 D1-D8 )依序產生電壓，而觸控感測器用IC33會依序將 檢測訊號送往顯示用控制裝置9。 藉此，顯示用控制裝置9可判斷使用者的手指的移動 方向。 以上述的構成，若使用者按下電源「開」鍵10而投 入電源後，從洗衣、洗衣烘乾（洗乾）、烘乾的3個運轉 模式之中，例如按下洗衣模式鍵12而選擇洗衣模式，則 藉由顯示用控制裝置9，洗衣模式鍵12的照明部12a及運 轉洗程顯示部20的「標準」會藉由背光源來照明，在顯 示部21顯示洗衣時間〔分〕，清洗次數〔次〕，脫水時 間〔分〕。 各運轉模式是以不同的組合而具有複數的運轉洗程， 例如就洗衣模式而言，具有「標準」、「預熱」、「節能 」、「羊絨」、「毛巾（少量）」、「毛毯」、「強洗衣 」、「記憶」、「潔淨」等作爲運轉洗程，可由此中選擇 希望的運轉洗程。 若使用者接著一邊使手指接觸於觸控操作部16的觸 控旋扭部17b—邊在觸控旋扭部17b上畫圓的方式使手指 移動，則會按照此手指的移動，從位於手指所接觸的觸控 旋扭部17b背側的前述觸控旋扭用電極32b (D1〜D8)經 由觸控感測器用IC33來傳送檢測訊號至顯示用控制裝置9 〇 根據此檢測訊號，顯示用控制裝置9判斷手指所接觸 的電極及手指的移動方向，使被顯示於顯示部20、21的 -12- 201233867 設定內容變更，且使振動子35及蜂鳴器19動作。 藉此，配合設定內容被變更，使觸控操作部16振動 ，且從蜂鳴器19發出聲音。 藉由在觸控旋扭部17b上使手指移動於第1方向（例 如圖4箭號A1所示的順時針方向），運轉洗程顯示部20 的運轉洗程之中，上述洗衣模式所含的運轉洗程會依序一 個一個藉由背光源來照亮。 另外，若使手指移動於與前述第1方向相反的第2方 向（圖4箭號A2所示的反時針方向），則運轉洗程會依 相反的順序一個一個地藉由背光源來照亮。 使用者是一邊確認顯示部20的顯示，一邊在希望的. 運轉洗程所被照亮之處停止觸控旋扭部17b的手指的移動 操作而決定運轉洗程的選擇。 並且，在想要變更洗衣時間、清洗次數、脫水時間時 ，是在操作對應於彼之操作鍵22〜24後，使手指接觸於觸 控旋扭部17b上而使移動，藉此使顯示部21的數字變化 〇 然後，一旦使手指接觸於起動操作部1 7a，則檢測訊 號會從起動用電極32a ( D0)經由觸控感測器用IC33來 送至顯示用控制裝置9，更從顯示用控制裝置9傳送訊號 至主控制裝置4 1，藉由主控制裝置4 1來實行運轉。 在上述中，觸控操作部16、觸控檢測用電極32、觸 控感測器用IC3 3及顯示用控制裝置9是實現作爲用以變 更操作被顯示於顯示部20、21的設定內容之變更操作手 -13- 201233867 段的任務。 其他的設定例，若使用者電源投入後藉由上述的方法 來選擇希望的運轉模式及運轉洗程而按下預約鍵27，則會 形成可計時器預約設定的狀態》此狀態是可在顯示部2 1 顯示預約時間，若使用者一邊使手指接觸於觸控旋扭部 17b —邊移動於所定方向，則顯示於顯示部21的預約時間 會被變更。 在使用者所希望的時間的數字之處停止觸控旋扭部 17b的操作而決定預約時間的選擇，一旦使手指接觸於起 動操作部1 7a，則會在藉由主控制裝置4 1來選擇的時間後 實行運轉。 若根據上述本實施形態，則可取得其次那樣的效果。 藉由使用者一邊使手指接觸於觸控操作部16的觸控 旋扭部17b —邊移動，可使運轉洗程顯示部20及顯示部 21的設定內容容易變更。 觸控操作部16是一體設於面板7，不需要在面板7設 置像操作旋扭那樣的突出物，因此可使面板7平面化而美 化外觀。 又，由於對於面板7不需要像操作旋扭那樣的動作者 ，因此可容易進行防水對策》特別是將觸控操作部1 6 — 體設於面板7，不需要在面板7設孔，因此可使防水對策 更簡單。 即使觸控操作面1 7沿著周圍的面板7的表面而成爲 曲面狀，還是會因爲將觸控操作部16的背面設成平面部 -14- 201233867 16a，所以只要觸控感測器單元29的保護構件36的表面 形成平面，便可容易加工觸控感測器單元29的表面。 由於在觸控操作部16設置肋條18，當手指移動於觸 控旋扭部17b時可接觸於肋條18的棒狀部18b，因此使用 者可取得隨設定內容的變更操作之操作感，可容易變更操 作設定內容。另外，亦可敢代肋條1 8而設爲溝。 又，由於藉由環部18a來區隔觸控操作面17的起動 操作部17a及觸控旋扭部17b，因此在進行觸控旋扭部 17b的操作時，可抑制錯誤操作起動操作部17a。 隨著手指移動於觸控旋扭部17b上，從蜂鳴器19發 出聲音，且藉由振動子35來振動觸控操作部16，因此使 用者可藉由聲音及振動來辨識確實碰觸於觸控操作部16, 可更取得操作感。 [第2實施形態] 其次，參照圖8來說明有關本發明的第2實施形態。 另外，在圖8中對於和第1實施形態相同的部分附上同樣 的符號而省略說明，只針對不同的部分進行說明。 在第2實施形態中是將面板48藉由面板本體48a、及 設於面板本體48a的表面的保護薄板48b來構成。在面板 本體48a設有安裝孔47，觸控感測器單元29會經筒部28 來安裝於此安裝孔47，使觸控感測器單元29卡合於卡合 爪部28a而保持。 面板本體48a的表面及觸控感測器單元29的表面會 -15- 201233867 被形成大致平面狀，該等的表面是以被印刷顯示內容的薄 的保護薄板48b所覆蓋。 在觸控感測器單元2 9的表面，亦即在保護構件3 6的 表面是取代第1實施形態的肋條1 8 (環部1 8 a、棒狀部 18b)，而設置具有環部51a、及放射狀的複數個棒狀部 5 1 b之肋條5 1。 在保護薄板48b中，對應於保護構件36的表面的部 分是將表面設爲觸控操作面50的觸控操作部49。 在觸控操作部49中，對應於中央部的起動用電極32a 的部位爲起動操作部50a，對應於位在該起動用電極32a 的周圍的觸控旋扭用電極32b的部位爲環狀的觸控旋扭部 5 0 b ° 若以上述的構成來一邊使手指接觸於保護薄板48b表 面的觸控旋扭部50b —邊移動，則藉由顯示用控制裝置9 來顯示於顯示部20、21的設定內容會被變更，一旦使手 指接觸於起動操作部50a’則會藉由主控制裝置41來實行 運轉。 在如此的第2實施形態中，雖是成爲在面板本體48a 設置用以安裝感應器單元29的安裝孔47之構成，但只要 以能夠覆蓋其安裝孔47的方式來設置保護薄板48b，便可 取得防水對策。 [第3實施形態] 其次’參照圖9〜圖18來說明有關本發明的第3實施 -16- 201233867 形態。另外，在圖9〜圖1 8中對於和第1實施形態相同的 部分附上同樣的符號而省略說明，只針對不同的部分進行 說明。 在觸控操作部16的觸控操作面17上，如圖9及圖10 所示般，設有肋條52。肋條52是具有透光性者’具有： 設成包圍起動操作部17a的周圍之和第1實施形態的環部 18a同樣的內周環部52a、及設成包圍觸控旋扭部17b的 周圍之外周環部52b，且將該等內周環部52a與外周環部 52b之間設爲當手指移動於觸控旋扭部17b上時成爲引導 的引導部53。因此，引導部53是形成使對應於觸控旋扭 用電極3 2b的配置之環狀。 並且，在成爲觸控操作部16的背側之基板31的背面 側（與起動用電極32a側相反的側），如圖1 1所示，位 於起動用電極32a的上方側配設有構成發光部的LED 54。 LED54是對應於基板31的背面的側會成爲發光面， 在基板3 1對應於LED54的發光面形成有透孔54a。同樣 ，在基板3 1的背面側，如圖1 0及圖1 1所示，位於各觸 控旋扭用電極32b的外周側配設有8個成爲發光部的 LED55。 LED55是對應於基板31的背面的側會成爲發光面， 在基板3 1對應於LED 5 5的發光面形成有透孔55a。 在上述構成中’當LED5 4發光時，使用者可透過基 板31的透孔54a及肋條52的內周環部52a來視認該 LED54的發光。並且，當LED55發光時，使用者可透過 -17- 201233867 基板31的透孔55a及肋條52的外周環部52b來視認該 LED55的發光。 在圖1 2中，在觸控檢測電路是取代觸控感測器用 IC33而設置觸控感測器用IC33A。在該觸控感測器用 IC33A的端子PI、P2間是連接有電解電容器56，且端子 P1是被連接至+5V的直流電源線57，端子P2是被連接至 接地。在觸控感測器用IC33A內，端子P1是串聯地經由 電阻58、59來連接至接地》 觸控感測器用IC33A是具有端子P3’此端子P3是被 連接至作爲第2觸控檢測用電極的起動用電極32a’且起 動用電極32a是經由電阻60來連接至觸控感測器用 IC33 A的端子P 1。 在觸控感測器用IC33A內，端子P3是被連接至比較 器61的負（-)端子，且經由MOS型的FET62來連接至 接地。 比較器61的輸出端子是被連接至計數器63的輸入端 子，比較器61的正（+)端子是被連接至電阻58、59的 共通連接點，而給予+2.5V的臨界値。 而且，在FET62的閘極及計數器63的控制端子會給 予ΟΝ/OFF指令訊號64，藉此構成起動開關65。 另外，ΟΝ/OFF指令訊號64是交替重複高位準及低位 準的脈衝訊號》 觸控感測器用IC33A是具有8個的端子P4(在圖12 是僅圖示1個），該等的端子P4是分別被連接至8個的 -18- 201233867 觸控旋扭用電極32b’且各觸控旋扭用電極32b是 阻60來連接至觸控感測器用IC33A的端子P1。 在觸控感測器用IC33A內，在端子P4亦設有 61、FET62、計數器63，在FET62的閘極及計數署 控制端子會給予ΟΝ/OFF指令訊號64 ’藉由以上來 扭部開關66。 亦一邊參照圖13及圖14 —邊說明有關圖12 感應器檢測電路的檢測原理。 首先，說明有關起動開關65。使用者的手指未 觸控操作部16的起動操作部17a的通常時，起動 3 2a是經由電容器67來連接至接地。 此情況，使用者的手指未接觸於起動操作部Γ 常時，電容器67是形成對於起動用電極32a的寄 電容。並且，在使用者的手指接觸於起動操作部1‘ 作時，電容器67是形成在起動用電極32a的寄生 容加上人體所產生的靜電電容之加算靜電電容，形 生靜電電容更大。 由於在觸控感測器用IC33A的FET62的閘極 器63的控制端子會給予ΟΝ/OFF指令訊號64, ΟΝ/OFF指令訊號64爲低位準訊號（關閉訊號 FET62關閉’如圖13所示般，電容器67會被充電 電壓慢慢地上昇’然後形成一定。 此電容器67的充電電壓是在寄生靜電電容的 ’如圖1 3的實線所示般，比較迅速地昇，但在靜 經由電 比較器 :63的 構成旋 所示的 接觸於 用電極 i的通 生靜電 ^的操 S& 静電電 成比寄 及計數 因此當 )時， ，充電 通常時 電電容 -19- 201233867 變大的加算靜電電容（寄生靜電電容+人體靜電電容）的 操作時，如圖1 3的虛線所示般，形成比較緩和。 然後’一旦ΟΝ/OFF指令訊號64形成高位準訊號（ 開啓訊號），則FET6開啓，藉此電容器67的充電荷瞬間 放電，充電電壓形成零（〇)。 另一方面，由於比較器61是在正（+)端子賦予 + 2.5V的臨界値，因此在正（+)端子賦予的充電電壓未 滿+2.5V時動作產生高位準的輸出訊號。 計數器63是藉由對控制端子賦予ΟΝ/OFF指令訊號 64，從其高位準往低位準下降重置後觸發而起動計數動作 〇 而且，一旦在輸入端子所給予之比較器61的輸出訊 號形成低位準，則停止計數動作。因此，計數器63的計 數値是表示比較器3 1的動作時間。 在比較器61中，在負（-)端子所給予之電容器67 的充電電壓形成+2.5V的臨界値而輸出訊號至成爲低位準 的時間是電容器67爲寄生靜電電容的通常時形成時間T 1 ，但電容器67形成加算靜電電容的操作則是形成比此更 長的時間T2。 此計數器61的計數値（時間T1、T2訊號）會作爲檢 測訊號來給予顯示用控制裝置9 (參照圖6)。此實施形 態基於說明的方便起見亦參照圖6來進行說明，但顯示用 控制裝置9如後述般亦可控制L E D 5 4、5 5。 在起動開關65，使用者的手指接近觸控操作部16的 -20- 201233867 起動操作部17a而接觸時的過程中，起動用電極32a與手 指之間的距離和電容器68的充電電壓至到達+2.5V的臨界 値之比較器3 1的動作時間（在圖13相當於時間T2 )的 關係是如圖1 4所示般。 亦即，隨著使用者的手指接近起動用電極32a，電容 器67的靜電電容會隨即變大，時間T2會變長。 藉此，只要在以計數器63的計數値（時間T2訊號） 作爲檢測訊號輸入的顯示用控制裝置9預先設定感度高的 臨界値（時間Ta )及更大（長）之感度低的臨界値（時 間Tb )，便可在時間T2爲感度高的臨界値（時間Ta)時 ，可判斷成使用者的手指接近起動操作部1 7a，在時間T2 爲感度低的臨界値（時間Tb)時，可判斷成使用者的手 指接觸於起動操作部17a。 以上，針對起動開關65的檢測原理來進行說明，但 旋扭部開關66的檢測原理亦相同，在上述起動開關65的 說明中，將起動操作部17a換成觸控旋扭部17b，將起動 用電極3 2a換成觸控旋扭用電極3 2b，而省略其說明。 因此，在旋扭部開關66中，亦如圖14所示般，可在 顯示用控制裝置9預先設定感度高的臨界値（時間Ta) 及更大（長）之感度低的臨界値（時間Tb)來切換。 其次，一邊參照圖15〜圖18 —邊說明有關本實施形態 的作用，但如前述般本實施形態基於說明方便起見，亦參 照圖6說明。而且’圖1 8所示的流程圖是彙整觸控感測 器用IC33A及顯示用控制裝置9的動作來顯示者。 -21 - 201233867 使用者對觸控操作部16進行旋轉操作（旋扭操作） 時，觸控感測器用IC33A及顯示用控制裝置9會實行圖 18的流程圖。首先，判斷在旋扭部開關66是否有反應（ 判斷步驟S 1 )，當無反應（在判斷步驟S 1爲「NO」）時 ，將起動開關65的感度切換成高（處理步驟S12)。 其次，判斷是否旋扭操作中（判斷步驟S3)，由旋 扭部開關66的檢測訊號判斷使用者的手指是否旋轉操作 觸控旋扭部17b，未操作時（在判斷步驟S3爲「NO」） ，將旋扭部開關66的感度切換成高（處理步驟S13)。 判斷使用者的手指是否接近觸控操作部1 6附近（處 理步驟S14) - 「NO」時，判斷LED55是否點滅交替顯 示中（判斷步驟S 1 6 )，未點滅顯示時（在判斷步驟s 1 6 爲「NO」），移至判斷步驟S7。 此刻在判斷步驟S 7，如後述般判斷是否使用者使接 觸於觸控旋扭部1 7 b來旋轉操作，未操作時（在判斷步驟 S7爲「NO」）回到判斷步驟S1。 以下，形成重複判斷步驟S 1、處理步驟S 1 2、判斷步 驟S3、處理步驟S13、判斷步驟S14、S16及S7的待機中 〇 在上述待機中，若使用者將手指接近觸控操作部1 6 的起動操作部17a或觸控旋扭部17b附近，則此時，因爲 起動開關65及旋扭部開關66的感度被設定於高，所以可 予以檢測出（在判斷步驟S 1 4爲「YES」），移至處理步 驟 S15 » -22- 201233867 顯示用控制裝置9在此處理步驟S15是如圖15(a) 、（b)所示般，以8個的LED55之中隔1個的4個爲一 組’使交替發光顯示。在圖15中，塗黑的部分爲表示發 光。 然後’移至判斷步驟S 7，以下，重複判斷步驟s 1、 處理步驟S 1 2、判斷步驟s 3、處理步驟S 1 3、判斷步驟 S14、處理步驟S15及判斷步驟S7，使在LED55點滅交替 顯示。 另外’在此點滅交替顯示中使用者使手指從觸控操作 部1 6離開時’在判斷步驟s 14判斷成「Ν Ο」，判斷成 LED點滅交替顯示中（在判斷步驟si6爲「YES」），手 指離開觸控操作部16後，5秒後使LED55熄燈（處理步 驟 S 1 7 )。 在LED55的點滅交替顯示中，使用者使手指接近觸 控操作部16的觸控旋扭部〗7b時，當作旋扭部開關有反 應’在判斷步驟S1判斷成r YES」，將起動開關65的感 度切換成低（處理步驟S2)。 而且’在使用者的手指操作觸控旋扭部17b時（在判 斷步驟S3爲「YES」），將旋扭部開關66的感度切換成 低（處理步驟S 4 )。 然後’若LED 5 5爲點滅交替顯示中（在判斷步驟s 5 爲「YES」），則使該LED55的點滅交替顯示停止，移至 判斷步驟S7。另外’當判斷成LeD55不是點滅交互顯示 中（在判斷步驟S5爲「NO」）時，立即移至判斷步驟S7 -23- 201233867 在判斷步驟S7中是藉由旋扭部開關66的感度切換設 定成低，來判斷使用者是否在使手指接觸於觸控旋扭部 1 7b的狀態下旋轉操作，在判斷成「YES」時，是判斷手 指的旋轉操作方向是否爲箭號A1方向（在圖9及圖16順 時針方向）（判斷步驟S8 )。這可以8個旋扭部開關66 的檢測訊號的變化狀態來判斷。 而且，在判斷成箭號A1方向時（在判斷步驟38爲「 YES」），顯示用控制裝置9是如圖16(a)所示般，由 觸控操作部16的最上部使箭號A1方向側的2個LED 55 發光（處理步驟S9 )。 以下，每移至此處理步驟S9，如圖16(b) 、( c ) 所示，在箭號A1方向使LED55前進1個點燈（發光）。 並且，在判斷成不是箭號A1方向時（在判斷步驟S 8 爲「NO」），由於使用者的手指的操作方向是箭號A2方 向（在圖9及圖17反時針方向），因此顯示用控制裝置9 是如圖17(a)所示般，由觸控操作部16的最上部使箭號 A2方向側的2個LED55發光（處理步驟S10 )，以後， 每移至此處理步驟S10，如圖17(b) 、（c)所示般，在 箭號A2方向使LED 55前進1個點燈。 接著，與第1實施形態同樣，按照洗程選擇或時間顯 示等的現在的選擇模式來更新顯示（處理步驟SU)。 然後，與第1實施形態同樣，使用者一邊確認顯示部 20的顯示，一邊在希望的運轉洗程所被照亮之處停止觸控 -24- 201233867 旋扭部lb的操作而決定運轉洗程的選擇，或變 間、清洗次數、脫水時間。 然後，一旦使手指接觸於起動操作部17a， 號會從起動開關65經由觸控感測器用IC33A來 用控制裝置9，更從顯示用控制裝置9傳送訊號 裝匱41，藉由主控制裝置41來實行運轉。 另外，顯示用控制裝置9是一旦從起動開關 檢測訊號，則使LED54發光。 藉由此第3實施形態亦可取得與第1實施形 藉由一邊使手指接觸一邊移動來容易變更運轉洗 20及顯示部21的設定內容等的效果，且亦可取 樣的效果。 由於在基板31中對應於起動用電極3 2a及 用電極32b來設置LED54及55，因此可令使用 用者的手指對起動用電極3 2a及觸控旋扭用電極 作。 此情況是將LED54及55設在基板31之成 用電極32a及觸控旋扭用電極32b相反側的面之 因此可將起動用電極32a及觸控旋扭用電極32b 貼於觸控操作部1 6的背面。所以，可縮短觸控主 與起動用電極32a及觸控旋扭用電極32b之間的 謀求操作感度（觸控感度）的提升。 而且，在觸控操作部16的觸控操作面17上 成包圍起動操作部17a的周圍之內周環部52a、 更洗衣時 則檢測訊 送至顯示 至主控制 65給予 態同樣可 程顯示部 得以下那 觸控旋扭 者視認使 32b的操 爲與起動 背面側， 配置程緊 I作面17 距離，可 ，藉由設 及設成包 -25- 201233867 圍觸控旋扭部17b的周圍之外周環部52b，來形成手指 動於觸控旋扭部17b上時成爲引導的引導部53，因此使 者可在觸控旋扭部17b上令手指沿著引導部53來確實 移動操作。 又，由於可將起動開關65及旋扭部開關66的感度 別地切換成高、低，因此藉由觸控旋扭部17b的操作最 將起動開關65及旋扭部開關66的感度切換成高，使用 只要令手指接近觸控操作部16，便可使LED55點滅交 顯示，可告知使用者觸控操作部16發揮作用。 當使用者旋轉操作觸控旋扭部1 7b時，將旋扭部開 66的感度切換成低，藉此將使用者一邊使手指接觸於觸 旋扭部1 7b —邊操作的情形依條件進行檢測動作，可確 使用者的操作想法，進而能夠謀求操作的確實化。 並且，利用使用者的手指之觸控旋扭部17b的旋轉 作中，是將起動開關65的感度切換成低，藉此即使使 者的操作中的手指以外的其他手指一時錯誤接近起動操 部17a，還是可防止運轉開始的訊號被送至主控制裝置 之錯誤操作。 另外，在第3實施形態中，利用使用者的手指之觸 旋扭部17b的旋轉操作中，是將起動開關65的感度切 成低，但亦可取而代之，利用使用者的手指之觸控旋扭 17b的旋轉操作中是顯示用控制裝置9不受理起動開關 的檢測訊號，亦即使形成無效化，此情況安全性會更提 移 用 地 個 初 者 替 關 控 認 操 用 作 4 1 控 換 部 65 升 -26- 201233867 [第4實施形態] 其次’參照圖19及圖20說明有關本發明的第4實施 形態。另外’在圖19及圖20中對於和第3實施形態相同 的部分附上同樣的符號而省略說明，只針對不同的部分進 行說明。 在此第4實施形態中是取代像第3實施形態那樣在基 板31設置8個的觸控旋扭用電極32b (D1-D8)的構成， 而像圖19所示那樣設置4個的觸控旋扭用電極3 2c ( D1 〜D4)。 觸控旋扭用電極32c是形成具有180度（。）的角度 領域之大致圓弧狀，中央部爲最大寬度，形成隨著由此中 央部往外周側兩方向（順時針方向及反時針方向）寬度漸 窄的形態。 而且，觸控旋扭用電極32c是由外周的中央部順時針 方向側的大致一半會與基板31成同心圓狀，由內周的中 央部反時針方向側的大致一半會與基板31成同心圓狀。 然後’ 4個的觸控旋扭用電極32c (D1〜D4)是以能 夠和觸控旋扭部17b (參照圖9)對應的方式配置成環狀 ’具體而言，在觸控旋扭用電極32c(D1、D2、D3、D4 )的順時針方向側的內周部分，分別與該等鄰接的觸控旋 扭用電極32c ( D2、D3、D4、D1 )的反時針方向側的外 周部分會取所定的間隔來對應。 另外’雖未圖示，但實際各觸控旋扭用電極32c是與 -27- 201233867 觸控旋扭用電極3 2b同樣，構成圖12所示那樣的旋扭部 開關’其檢測訊號是被供給至顯示用控制裝置9 (參照圖 6 ) 〇 然後’在圖19中’使圖9的觸控操作部16對應於基 板31時’若將最上部位置設爲〇度（°)由此位置來令使 用者的手指接觸於觸控旋扭部17b的狀態下使旋轉操作於 順時針方向，則對應於手指的觸控旋扭用電極32c的面積 會相對地變化，因此藉由此面積相對地變化的形狀，利用 手指來作用的靜電電容也會變化。 因此，4個的觸控旋扭用電極32c(Dl、D2、D3、D4 )所構成的旋扭部開關的檢測訊號（比較器動作時間）是 形成圖20(a) 、( b ) 、( c ) 、（d)所示般，形成在 180度的範圍連續地上昇90度下降90度的訊號，依序形 成彼此偏移90度的檢測訊號。 藉由此圖20(a)〜（d)所示的檢測訊號被賦予顯示 用控制裝置9，可無階段地檢測出使用者的手指的旋轉操 作角度，因此藉由此第4實施形態’亦可取得與第3實施 形態大致同樣的效果》 [第5實施形態] 其次，參照圖21〜圖25來說明有關本發明的第5實施 形態。另外，在圖21〜圖2 5中對於和第3實施形態相同的 部分附上同樣的符號而省略說明，只針對不同的部分進行 說明。 -28- 201233867 在圖21及圖22所示的第5實施形態的基板31是取 代第3實施形態的觸控檢測用電極32而設置觸控檢測用 電極6 8。 觸控檢測用電極68是由：作爲對應於觸控操作部1 6 的起動操作部17a之第2觸控檢測用電極的起動用電極69 、及對應於觸控旋扭部17b來配置成環狀的8個觸控旋扭 用電極70 ( D1-D8 )所構成。 而且，起動用電極69是由中央部的矩形狀的訊號側 電極69a及其周圍部的矩形框狀的電源側電極69b所構成 。又，觸控旋扭用電極70是由中央部的矩形狀的訊號側 電極70a及其周圍部的矩形框狀的電源側電極70b所構成 〇 如圖23所示，在觸控旋扭用電極70中，訊號側電極 7〇a是經由通孔藉由焊錫72來連接至設在基板31內的連 接用電極71，電源側電極70b是經由通孔藉由焊錫74來 連接至基板31內位於比連接用電極71更靠表面側而設的 連接用電極73。 另外，雖未圖示，但實際起動用電極69的訊號用電 極69a及電源用電極69b也同樣分別連接至連接用電極。 而且，在基板31的表面設置具有所定的間隙來包圍起動 用電極69及觸控旋扭用電極70的周圍之接地電極（屏蔽 )75，且在基板3 1的背面大致全域設置接地電極（屏蔽 )76，接地電極（屏蔽）75與接地電極（屏蔽）76是經 由通孔來藉由焊錫77連接。 -29- 201233867 在圖24中，在觸控檢測電路是取代觸控感測器用 IC33A而設置觸控感測器用IC33B。此觸控感測器用 IC33B的端子P1是經由電阻78來連接至NPN型的電晶體 79的基極。 在此電晶體7 9中，基極是經由電阻8 0來連接至射極 ，射極是連接至+ 1 5 V的直流電源線8 1，集極是經由電阻 82來連接至接地。 而且，在觸控感測器用IC33B內，在端子P1給予方 形波訊號83，此方形波訊號83是以所定周期來交替重複 高位準、低位準的訊號》 因此，此方形波訊號83給予基極的電晶體79是在低 位準時形成開啓，在高位準時形成關閉的方式重複 ON/OFF » 在電晶體79的集極是連接電源線84，此電源線84是 在電晶體79的開啓時成爲射極電位，在電晶體79的關閉 時成爲接地電位。 在此電源線84是連接有起動用電極69的電源側電極 6 9b，且連接8個的觸控旋扭用電70(在圖24是只圖示1 個）的電源側電極7 0 b。 觸控感測器用IC33B是具有端子P2，此端子P2是在 觸控感測器用IC33B內連接至A/D變換電路85。 此端子P2是逆方向經由二極體86來連接至起動用電 極69的訊號側電極69a，該二極體86的陰極是經由電阻 87來連接至接地，且經由電容器88來連接至接地，更順 -30- 201233867 方向經由二極體89來連接至直流電源線57，藉由該等來 構成起動開關90。 觸控感測器用IC33B是具有8個的端子P3(在圖24 是只圖示1個），在該等的端子P3與該等8個的觸控旋 扭用電極70的訊號側電極70a之間是與起動開關90同樣 ，分別連接有A/D變換電路85、二極體86、電阻87、電 容器88及二極體89，藉由該等來構成各旋扭部開關91。 然後，亦參照圖25來說明有關圖24所示的感應器檢 測電路的檢測原理。 首先，說明有關起動開關90。 使用者的手指未接觸於觸控操作部1 6的起動操作部 17a的通常時，起動用電極69的電源側電極69a與訊號側 電極69b是離開而被絕緣。 使用者使手指接觸於起動操作部17a的操作時，起動 用電極69的電源側電極69a與訊號側電極69b是經由使 用者的手指的靜電電容所產生的電容器92來連接。 藉此，在電晶體79的開啓時是經由電源線84、電容 器92來充電電容器88而產生電壓，此產生的電壓是被供 給至A/D變換電路85。 可是，在起動開關90，使用者的手指接近觸控操作部 16的起動操作部17a而接觸時的過程中，起動用電極69 與手指之間的距離和電容器88的充電電壓（產生電壓） 的關係是如圖2 5所般。 亦即，隨著使用者的手指接近起動用電極69,電容器 -31 - 201233867 92的靜電電容會隨即變小，產生電壓會變大。藉此，在以 A/D變換電路85的輸出訊號作爲檢測訊號輸入的顯示用 控制裝置9預先設定感度高的臨界値（電壓Va)及比此 電壓Va更大的電壓Vb之感度低的臨界値（電壓Vb )， 使能夠切換感度高及感度低。 因此，當產生電壓爲感度高的臨界値（電壓 Va)時 ，可判斷成使用者的手指接近起動操作部17a，且當產生 電壓爲感度低的臨界値（電壓 Vb)時，可判斷成使用者 的手指接觸於起動操作部17a。 以上，說明有關起動開關90的檢測原理，但旋扭部 開關9 1的檢測原理亦相同，在起動開關90的說明中，將 起動操作部17a換成觸控旋扭部17b，將起動用電極69換 成觸控旋扭用電極70，而省略其說明。 因此，在旋扭部開關91中，亦如圖25所示般，可在 顯示用控制裝置9預先設定感度高的臨界値（電壓Va) 及更大之感度低的臨界値（電壓Vb)來切換。 即使取代第3實施形態的觸控感測器用IC3 3 A而使用 觸控感測器用IC33B，照樣可使圖18所示的流程圖實行 於觸控感測器用IC33B及顯示用控制裝置9。藉由此第5 實施形態，亦可取得與第3實施形態同樣的效果。 [第6實施形態] 其次，參照圖26來說明有關本發明的第6實施形態 。在此第6實施形態中，基於說明的方便起見，亦參照第 -32- 201233867 5實施形態的圖21及圖24。 此第6實施形態是可將給予圖24的觸控感測器用 IC33B的端子P1的方形波訊號83的方形波頻率切換成感 度高用的高頻、及感度低用的低頻。 圖26是表示電極（起動用電極69或觸控旋扭用電極 70)與使用者的手指之間的距離、電容器88的產生電壓 及頻率高、低的關係者，頻率高要比頻率低流動於電容器 92的電流大，電容器88的產生電壓高。 因此，即使將電壓的臨界値設定成一定的Vb，還是 可在頻率高時檢測出手指接近於起動操作部17a或觸控旋 扭部1 7b，相對的在頻率低時檢測出手指接觸於起動操作 部17a或觸控旋扭部17b。 另外，想要將起動開關90及旋扭部開關91的感度個 別地切換成高、低時，只要在觸控感測器用IC33B設置起 動開關90專用的端子P1及旋扭部開關91專用的端子P1 來個別地切換頻率即可。 藉由此第6實施形態也可取得與第5實施形態同樣的 效果。 [第7實施形態] 參照圖27及圖28來說明有關本發明的第7實施形態 。在此第7實施形態中’基於說明的方便起見，對於和第 5實施形態的圖2 1及圖22相同的部分附上同樣的符號表 示，只針對以下不同的部分進行說明。 -33- 201233867 在此第7實施形態，設於面板7的觸控操作部16是 具有：位於中央部的大致圓形狀的凸部93、及位於此凸部 93的周圍之作爲引導部的大致圓環狀的凸條部94，凸部 93是下面開放，表面（上面）成爲起動操作部i7a，且凸 條部94是下面開放，表面（上面）成爲環狀的觸控旋扭 部 17b。 在此第7實施形態，基板31是分割成位於中央部的 圓形狀的基板31A、及位於此基板31A的周圍的圓環狀的 基板31B來構成，在基板31A是設有起動用電極69，在 基板31B是設有8個的觸控旋扭用電極70。 而且，基板31A是配設於凸部93的下面凹部內，起 動用電極69會對應於起動操作部17a，基板31B是配設 於凸條部74的下面凹部內，觸控旋扭用電極70會對應於 觸控旋扭部17b。 在第7實施形態是僅操作觸控操作部1 7a的部分被形 成凸部93，且沿著觸控旋扭部17b來引導的引導部被形成 凸條部94的點與第5實施形態不同，可取得與第5實施 形態同樣的作用效果。 [第8實施形態] 參照圖29及圖30來說明有關本發明的第8實施形態 。在此第8實施形態中，基於說明的方便起見，對於和第 4及第5實施形態相同的部分附上同樣的符號表示，只針 對以下不同的部分進行說明。 -34- 201233867 此第8實施形態是在基板31的中央部設有與第5實 施形態同樣的起動用電極69，以能夠包圍此起動用電極 69的周圍的方式，設有與第4實施形態同樣的4個觸控旋 扭用電極32c。 但，就此第8實施形態而言，4個的觸控旋扭用電極 3 2c是形成比第4實施形態更小徑。 而且，在基板31中，以能夠包圍4個觸控旋扭用電 極32c的周圍之方式設有大致圓環狀的共通的電源側電極 32d。此4個的觸控旋扭側電極32c及電源側電極32d是 對應於觸控操作部16的觸控旋扭部17b (參照圖21)來 構成4對的電極，構成如圖24的符號91所示那樣的旋扭 部開關。. 然後，一旦使用者藉由手指來旋轉操作觸控旋扭部 1 7b，則手指的靜電電容會依序作用於電源側電極32d及4 個的觸控旋扭用電極32c，在藉由電源側電極32d及4個 的觸控旋扭用電極3 2c所構成的4個旋扭部開關依序產生 電壓，其產生電壓是分別形成圖30(a) 、（b) 、（c) 、（d)所示。因此，藉由此第8實施形態也可取得與第4 實施形態同樣的效果。 另外，本發明並非只限於上述的實施形態，亦可如其 次般變形或擴充。 雖是將觸控旋扭用電極32b(Dl〜D8) 、70(D1〜D8 )排列成環狀而配置’但亦可將複數的觸控檢測用電極排 列成直線狀而配置，此情況，只要使觸控操作部1 6對於 -35- 201233867 此的方式延伸於直線方向設置即可。如此的構成亦與上述 實施形態同樣，可在使手指一邊接觸於觸控操作面17上 一邊移動下進行設定內容的變更操作。 亦可使觸控操作部16的起動操作部17a比周圍的觸 控操作面17還凹陷。藉此，可抑制錯誤操作起動操作部 17a » 若像以上那樣利用本實施形態的洗衣機，則使用者會 一邊使手指接觸於觸控操作部的觸控旋扭部一邊移動，藉 此可容易變更被顯示於顯示部的設定內容。 由於觸控操作部是被一體設於面板，不需要在面板設 置像操作旋扭那樣的突出物，因此可使面板平面化美化外 觀。又，由於對於面板不需要像操作旋扭那樣動作者，因 此可容易進行防水對策。 以上，說明本發明的幾個實施形態，但該等的實施形 態是作爲例子提示者，並非意圖限定發明的範圍。該等新 穎的實施形態是可以其他各種的形態來實施，只要不脫離 發明的主旨範圍便可進行各種的省略、置換、變更。該等 實施形態或其變形爲發明的範圍或主旨所包含，且爲申請 專利範圍記載的發明及其均等的範圍所包含。 【圖式簡單說明】 圖1是表示第1實施形態的觸控操作部的剖面圖。 圖2是滾筒式洗衣烘乾機的外觀立體圖。 圖3是面板的正面圖。 -36- 201233867 圖4是表示觸控檢測用電極的配置圖。 圖5是由背側來看面板的筒部圖。 圖6是表示電氣構成圖。 圖7是表示觸控檢測電路的等效電路圖。 圖8是表示第2實施形態之相當圖1的圖。 圖9是表示第3實施形態的觸控操作部的正面圖。 圖1 〇是觸控操作部的剖面圖。 圖11是基板的正面圖。 圖12是表示觸控檢測電路的等效電路圖。 圖1 3是用以說明檢測原理的特性圖。 圖14是用以說明感度切換的特性圖。 圖15是用以說明LED的交替顯示的圖。 圖16是用以說明LED的一方方向的旋轉顯示的圖。 圖1 7是用以說明LED的相反方向的旋轉顯示的圖。 圖1 8是作用說明用的流程圖。 圖19是表示第4實施形態的基板的正面圖。 圖20是表示觸控旋扭用電極的檢測特性的圖。 圖21是表示第5實施形態的觸控操作部的剖面圖。 圖22是基板的正面圖。 圖23是基板的部分擴大剖面圖。 圖24是表示感應器檢測電路的等效電路圖。 圖25是用以說明感度切換的特性圖。 圖26是表示第6實施形態之相當圖25的圖。 圖27是表示第7實施形態的觸控操作部的剖面圖。 -37- 201233867 圖28是基板的正面圖。 圖29是表示第8實施形態的基板的正面圖。 圖30是表示觸控旋扭用電極的檢測特性的圖。· 【主要元件符號說明】 2:洗衣機本體 7 :面板 9 :顯示用控制裝置（顯示控制手段，變更操作手段） 1 6 :觸控操作部（變更操作手段） 1 7 :觸控操作面（變更操作手段） 17a :起動操作部 17b:觸控旋扭部（變更操作手段） 20 :運轉洗程顯示部（顯示部） 21 :顯示部 29 :觸控感測器單元 32、68 :觸控檢測用電極（變更操作手段） 3 2a、69 :起動用電極（第2觸控檢測用電極） 3 2b、3 2c :觸控旋扭用電極（變更操作手段） 53 :引導部 55 : LED (發光部） -38-201233867 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION Embodiments of the present invention relate to a washing machine. [Prior Art] In the & clothes machine that implements one setting content selected by the plural setting contents, the number of selectable setting contents (operation mode, operation wash, etc.) increases, and it is necessary to set The content is continuously pressed as a key to select a setting content. In order to save this trouble, there is a case where the panel is set to rotate by operation, and as a change operation means, the desired setting contents are selected in accordance with the rotation of the operation knob. As a structure for operating the knob, for example, there is a case shown in the document 1. [PRIOR ART DOCUMENT] [Patent Document 1] [Patent Document 1] Japanese Laid-Open Patent Publication No. 2007 - 1 8523 7 SUMMARY OF THE INVENTION (Problems to be Solved by the Invention) Then, in the above configuration, the operation of the knob requires a hand grip. The turning operation, so that the operating knob becomes a protrusion for the panel plane, this protruding operating twist has a problem of deteriorating the appearance. Further, in order to provide an operation knob on the panel, it is necessary to form a through hole, and -5 - 201233867, therefore, countermeasures against water leakage are necessary, and the waterproof structure is complicated. Therefore, in order to provide a washing machine that can be used to change the appearance of the panel and to improve the appearance of the panel, and to facilitate the waterproofing measures, the washing machine of the present embodiment includes: The panel is disposed on the main body of the washing machine; the display unit is disposed on the panel, and displays setting contents related to the operating conditions; and a setting content changing operation means is provided on the panel. The setting content changing operation means for changing the operation to be displayed on the display unit, wherein the setting content changing operation means includes a touch operation unit that is disposed on the panel and has a surface for making a finger contact The touch operation surface to be operated; the electrostatic capacitance type plurality of touch detection electrodes are arranged on the back side of the touch operation portion, and the operation of the finger on the touch operation surface is detected; and the display control means The setting content displayed on the display unit is changed based on the detection signals from the plurality of touch detection electrodes that are output according to the movement of the finger on the touch operation surface. As a result, it is possible to provide a washing machine which can easily change the setting contents, flatten the panel, and beautify the appearance, and can easily perform waterproof measures. -6 - 201233867 [Embodiment] [First Embodiment] Hereinafter, a first embodiment in which the present invention is applied to a drum type washing and drying machine will be described with reference to Figs. 1 to 7 . As shown in Fig. 2, the main body 2 of the washing machine constituting the outline of the washing and drying machine 1 is formed in a substantially rectangular box shape in which the front surface is smoothly inclined. A water supply port 3 and a top plate 4 are provided on the upper surface of the washing machine body 2. A door 5 is provided at the front center portion of the washing machine body 2, and a door button 6 for opening the door 5 is provided at the upper portion of the door 5. Further, a panel 7 made of synthetic resin and a lotion-input unit 8 are provided on the upper front portion of the washing machine body 2. The surface of the panel 7 is formed into a smooth curved surface having a front low height and a rear height, and a display control device 9 (illustrated only in Fig. 6) as a display control means is provided on the back side of the panel 7. In the panel 7, as shown in FIG. 3, the right end is provided with a power "on" button 1 and a power "off" button 11, and on the left side thereof are provided for selecting laundry, washing and drying (washing), and drying. The operation mode keys 12 to 14 of the operation mode and the door lock display unit 15 in which the display door 5 is locked in the closed state. Each of the operation mode keys 12 to 14 has illumination units 12a to 14a. The illumination units 12a to 14a and the door lock display unit 15 are illuminated by the backlight of the LED. On the left side of the operation mode keys 12 to 14, the touch operation portion 16 is provided integrally with the panel 7. The surface of the touch operating portion 16 serves as a touch operation surface 17 for operating the finger. In the touch operation unit 16 as shown in Fig. 1, the touch operation surface 17 on the surface is formed in a curved shape along the surface of the surrounding panel 7, and a flat surface portion 16a is formed on the back surface. A start operation portion 17a is provided at the center of the touch operation surface 17, and a touch rotation portion 17b having a twist function is provided around the start operation portion i7a. Further, on the touch operation surface 17, as shown in Fig. 4, ribs 18 are provided. The rib 18 has a ring portion 18a that surrounds the periphery of the starting operation portion 17a, and a bar portion 18b that extends radially outward from the ring portion 18a. The rod portion 18b is The touch rotation portion 1 7b is divided into 8 equal parts. The touch rotation unit 17b is for releasing the selection of the operation washing process or setting the reservation time for one of the setting contents of the operating conditions, and the starting operation unit 17a is for starting the operation washing and The suspension of the running process in the implementation. The internal configuration of the touch operation unit 16 will be described later. Referring back to Fig. 3, a buzzer 19 is provided on the back side of the lower left panel 7 of the touch operation surface 17 of the touch operation unit 16. Further, on the left side of the position of the buzzer 19, an operation washing display unit 20 (display portion) for displaying a running washing process is provided, and a display portion 21 for displaying other setting contents is provided on the left side thereof. Below, there are stroke keys 22 to 25 for selecting the number or time of each stroke of washing, washing, dehydrating, drying, bath water keys 26 for selecting the presence or absence of bath water, and timing for selecting a timer. Reservation button 2 7. -8 - 201233867 Next, the internal configuration of the touch operation unit 16 will be described. As shown in FIG. 1, the touch sensor unit 29 is tightly pressed on the surface of the touch sensor unit 29 in a cylindrical tubular portion 28 (see FIG. 5) provided to protrude to the back side of the panel 7. The flat portion 16 a on the back surface of the touch operation portion 16 is attached to the back side of the touch operation portion 16 . The touch sensor unit 29 is configured by accommodating a circular substrate 31, a touch detecting electrode 32, a touch sensor IC 33, a connector 34, and a vibrator 35 in a cylindrical case 30. The touch sensor unit 29 is configured such that the concave portion 3〇a provided on the outer circumferential surface of the casing 30 is fitted to the convex portion 28b provided on the inner circumferential surface of the tubular portion 28, and is fixed to the plurality of elastically deformable portions. The engaging claw portion 28a is held under. On the upper surface of the substrate 31, on the back side of the touch operation unit 16, a plurality of capacitive touch detection electrodes 3 2 are arranged in a line. The touch detection electrode 32 is configured to detect that the finger is in contact with the touch operation surface 17 e. The touch sensor IC 33, the connector 34, and the two vibrators 35 are provided on the back surface of the substrate 31 ( In Fig. 1, only one of them is shown). The substrate 31 is electrically connected to the display control device 9 via the connector 34 (see Fig. 6). The upper surface of the touch detection electrode 3 2 is covered with a protective member 36 made of, for example, synthetic resin. The surface of the protective member 36 is flat and is in close contact with the flat portion 16a of the back surface of the touch operating portion 16. Further, the back side of the substrate 31 is covered with the moisture-proof resin 37 in order to prevent moisture from entering the touch sensor IC 33. 201233867 FIG. 4 is a view of the touch operation unit 16 viewed from the front, and the arrangement of the touch detection electrode 32 and the touch sensor IC 33, the connector 34, and the vibrator 35 on the back side of the touch operation unit 16 is Indicated by the dotted line. The touch detecting electrode 32 has a circular starting electrode 32a (D0) disposed at the center, and eight fan-shaped touch rotating electrodes 32b are annularly arranged around the starting electrode 32a (D0). (D1~D8). The starting electrode 3 2a (D0) is disposed at a position corresponding to the starting operation portion 17a, and the eight touch rotation electrodes 32b (D1 to D8) are arranged in touch knobs corresponding to division into 8 equal parts. The position of the portion 17b. Further, the rod portion 18b of the rib 18 is disposed so as to span the adjacent two touch rotation knob electrodes 32b located on the back side of the panel 7 as viewed from the front side of the panel 7. Further, the touch sensor IC 3 3 and the connector 34 are disposed on the back surface of the substrate 31 so as to be able to sandwich the center start electrode 32a (D0), and the two vibrators 35 are arranged. Around. Fig. 6 is a view showing the electrical configuration of the main part of the embodiment. The display control device 9 receives signals from the starter electrode 32a, the touch rotation electrode 32b, and the other switch 40 via the open switch 38, the off switch 39, and the touch sensor IC 33. Then, the display control device 9 controls the illumination units 12a to 14a, the door lock display unit 15, the display unit 20, 21, the vibrator 35, the buzzer 丨9, and the main control device based on the input signals. 4 1 Input signal. The main control device 41 is the entire operator who controls the washing and drying machine 1. The open switch 38 and the off switch 39 respectively input signals to the display control device 9 by operating the power "on" button -10- 201233867 10 and the power "off" button 11. The other switch 40 inputs a signal to the display control device 9 by operating each of the operation keys 12 to 14, 22 to 27. The display control device 9 operates the buzzer 19 and the vibrator 35 by operating the touch rotation portion 17b of the touch operation unit 16, and changes the setting contents displayed on the display units 20 and 21. In the touch detection circuit shown in FIG. 7, a plurality of touch detection electrodes 32 can be connected to the touch sensor IC 33. In this embodiment, one start electrode 32a (D0) and eight touches are connected. The rotation-control electrode 32b (D1 to D8) is controlled. The starter electrode 32a (D0) is provided with a sensor circuit 42 including a charging capacitor 43 connected in series between the terminal P1 and the ground, a discharge resistor 44, and a terminal P1. The fixed capacitor 45 between P2 and P2 is connected to the starting electrode 32a (DO). The sensor circuit 42 is also connected to each of the eight touch rotation electrodes 32b (D1 to D8). When the user's finger touches the start operation portion 17a of the touch operation surface 17, the touch detection electrode 32a (D0) is connected to the ground via the capacitor 46 by the electrostatic capacitance of the human body. The control detecting electrode 32a (D0) generates a voltage, and the touch sensor IC 33 sends the detection signal to the display control device 9. Further, when the user moves the finger to the touch rotation portion 17b of the touch operation surface 17 to make contact, the voltage is sequentially generated in the touch rotation electrode 32b ( -11 - 201233867 D1 - D8 ). The IC33 for the touch sensor sequentially sends the detection signal to the display control device 9. Thereby, the display control device 9 can determine the moving direction of the user's finger. According to the above configuration, when the user presses the power "on" key 10 to turn on the power, the laundry mode key 12 is pressed from among the three operation modes of washing, washing, drying (washing) and drying. When the laundry mode is selected, the "control" of the illumination unit 12a of the laundry mode key 12 and the "standard" of the operation washing display unit 20 are illuminated by the backlight, and the laundry time is displayed on the display unit 21 by the display control device 9. , the number of cleaning times [times], dehydration time [minutes]. Each operation mode has a plurality of operation washing processes in different combinations. For example, in the laundry mode, there are "standard", "preheating", "energy saving", "cashmere", "towel (small amount)", "blanket" "Strong laundry", "memory", "clean", etc., as the running washing process, can select the desired running washing process. If the user then touches the touch rotation portion 17b of the touch operation portion 16 while the user touches the touch rotation portion 17b to draw a circle on the touch rotation portion 17b, the finger moves according to the movement of the finger. The touch rotation knob electrodes 32b (D1 to D8) on the back side of the touch rotation portion 17b that are in contact with each other transmit the detection signal to the display control device 9 via the touch sensor IC 33, and display the signal according to the detection signal. The control device 9 determines the moving direction of the electrode and the finger that the finger is in contact with, changes the setting contents of -12-201233867 displayed on the display units 20 and 21, and operates the vibrator 35 and the buzzer 19. Thereby, the setting content is changed in accordance with the setting, the touch operation unit 16 is vibrated, and the buzzer 19 emits a sound. By moving the finger in the first direction (for example, the clockwise direction indicated by the arrow A1 in FIG. 4) on the touch rotation portion 17b, the operation of the laundry mode is performed during the operation washing process of the washing range display unit 20. The washing process will be illuminated one by one by the backlight. Further, when the finger is moved in the second direction opposite to the first direction (the counterclockwise direction indicated by the arrow A2 in Fig. 4), the operation washing process is illuminated one by one in the reverse order by the backlight. . The user is expecting while confirming the display of the display unit 20. When the operation washing machine is illuminated, the movement of the finger of the touch rotation portion 17b is stopped to determine the selection of the operation washing process. Further, when it is desired to change the washing time, the number of washings, and the dehydration time, after the operation keys 22 to 24 corresponding to the other are operated, the finger is brought into contact with the touch rotation portion 17b to be moved, thereby causing the display portion to be moved. Then, when the finger is brought into contact with the starting operation unit 17a, the detection signal is sent from the starting electrode 32a (D0) to the display control device 9 via the touch sensor IC 33, and more for display. The control device 9 transmits a signal to the main control device 4 1, and the main control device 41 performs the operation. In the above, the touch operation unit 16 , the touch detection electrode 32 , the touch sensor IC 3 3 , and the display control device 9 are changed as the setting contents displayed on the display units 20 and 21 for the change operation. Operator's tasks in the paragraph-13- 201233867. In other setting examples, if the user selects the desired operation mode and the operation wash by the above method and presses the reservation key 27, the timer reservation setting state is formed. This state is displayable. The part 2 1 displays the reservation time, and if the user moves the finger in the predetermined direction while touching the touch rotation portion 17b, the reservation time displayed on the display unit 21 is changed. The operation of the touch rotation unit 17b is stopped at the number of times desired by the user to determine the selection of the reservation time. When the finger is brought into contact with the start operation unit 17a, the main control unit 4 1 selects After the time, the operation was carried out. According to the above embodiment, the next effect can be obtained. When the user touches the touch rotation portion 17b of the touch operation unit 16 while moving the finger, the setting contents of the operation washing display unit 20 and the display unit 21 can be easily changed. Since the touch operation unit 16 is integrally provided on the panel 7, it is not necessary to provide a protrusion such as a manipulation knob on the panel 7, so that the panel 7 can be planarized to enhance the appearance. Moreover, since it is not necessary for the panel 7 to act as an actuator, the waterproof countermeasure can be easily performed. In particular, the touch operation unit 16 is provided on the panel 7, and it is not necessary to provide a hole in the panel 7. Make waterproofing measures easier. Even if the touch operation surface 17 is curved along the surface of the surrounding panel 7, the back surface of the touch operation unit 16 is set to the flat portion-14-201233867 16a, so that the touch sensor unit 29 is only required. The surface of the protective member 36 is formed into a plane, and the surface of the touch sensor unit 29 can be easily processed. Since the rib 18 is provided in the touch operation portion 16, the rod portion 18b of the rib 18 can be contacted when the finger moves to the touch rotation portion 17b, so that the user can obtain an operation feeling with the change operation of the setting content, and the operation can be easily performed. Change the operation settings. In addition, it is also possible to use the ribs 18 as a ditch. Further, since the starting operation portion 17a and the touch rotation portion 17b of the touch operation surface 17 are separated by the ring portion 18a, the operation of the touch rotation portion 17b can be suppressed, and the erroneous operation start operation portion 17a can be suppressed. . As the finger moves on the touch rotation portion 17b, the sound is emitted from the buzzer 19, and the touch operation portion 16 is vibrated by the vibrator 35, so that the user can recognize that the touch is actually touched by the sound and the vibration. The touch operation unit 16 can further obtain an operational feeling. [Second Embodiment] Next, a second embodiment of the present invention will be described with reference to Fig. 8 . It is noted that the same portions as those in the first embodiment are denoted by the same reference numerals in FIG. 8 and will not be described, and only the different portions will be described. In the second embodiment, the panel 48 is constituted by the panel main body 48a and the protective sheet 48b provided on the surface of the panel main body 48a. A mounting hole 47 is provided in the panel body 48a, and the touch sensor unit 29 is attached to the mounting hole 47 via the tubular portion 28, so that the touch sensor unit 29 is engaged with the engaging claw portion 28a. The surface of the panel body 48a and the surface of the touch sensor unit 29 are formed in a substantially planar shape, and the surfaces are covered by a thin protective sheet 48b on which the display content is printed. The surface of the touch sensor unit 29, that is, the surface of the protective member 36, is provided with a ring portion 51a instead of the rib 18 (ring portion 18a, rod portion 18b) of the first embodiment. And a plurality of ribs 5 1 of a plurality of rod-shaped portions 5 1 b. In the protective sheet 48b, a portion corresponding to the surface of the protective member 36 is a touch operation portion 49 having a surface as the touch operation surface 50. In the touch operation unit 49, the portion corresponding to the starting electrode 32a of the center portion is the starting operation portion 50a, and the portion corresponding to the touch rotation electrode 32b located around the starting electrode 32a is annular. The touch rotation portion 50b is moved to the display unit 20 by the display control device 9 while moving the touch rotation portion 50b that touches the surface of the protective sheet 48b with the above-described configuration. The setting content of 21 is changed, and when the finger is brought into contact with the starting operation unit 50a', the main control unit 41 performs the operation. In the second embodiment, the panel main body 48a is provided with a mounting hole 47 for attaching the sensor unit 29. However, the protective sheet 48b may be provided so as to cover the mounting hole 47. Get waterproof measures. [Third Embodiment] Next, a third embodiment of the present invention - 16 to 201233867 will be described with reference to Figs. 9 to 18 . It is noted that the same portions as those in the first embodiment are denoted by the same reference numerals in FIG. 9 to FIG. 18, and description thereof will be omitted, and only different portions will be described. On the touch operation surface 17 of the touch operation unit 16, as shown in FIGS. 9 and 10, ribs 52 are provided. The rib 52 is a translucent person' having an inner circumferential ring portion 52a similar to the ring portion 18a of the first embodiment and surrounding the starting operation portion 17a, and a periphery surrounding the touch rotation portion 17b. The outer peripheral ring portion 52b is provided between the inner peripheral ring portion 52a and the outer peripheral ring portion 52b as a guide portion 53 that guides when the finger moves on the touch rotation portion 17b. Therefore, the guide portion 53 is formed in a ring shape corresponding to the arrangement of the touch rotation electrode 3 2b. Further, on the back side of the substrate 31 on the back side of the touch operation unit 16 (the side opposite to the start electrode 32a side), as shown in FIG. 11, the light is disposed on the upper side of the start electrode 32a. LED 54 of the department. The LED 54 is a light-emitting surface corresponding to the side of the back surface of the substrate 31, and a through-hole 54a is formed in the light-emitting surface of the substrate 31 corresponding to the LED 54. Similarly, as shown in Figs. 10 and 11 on the back side of the substrate 31, eight LEDs 55 serving as light-emitting portions are disposed on the outer peripheral side of each of the touch-control coil electrodes 32b. The LED 55 is a light-emitting surface corresponding to the side of the back surface of the substrate 31, and a through-hole 55a is formed in the light-emitting surface of the substrate 315 corresponding to the LED 515. In the above configuration, when the LEDs 5 4 emit light, the user can visually recognize the light emitted from the LEDs 54 through the through holes 54a of the substrate 31 and the inner peripheral ring portions 52a of the ribs 52. Further, when the LED 55 emits light, the user can visually recognize the light emission of the LED 55 through the through hole 55a of the -17-201233867 substrate 31 and the outer peripheral ring portion 52b of the rib 52. In FIG. 12, the touch detection circuit is used to replace the touch sensor IC33 and the touch sensor IC33A is provided. An electrolytic capacitor 56 is connected between the terminals PI and P2 of the touch sensor IC33A, and the terminal P1 is connected to a +5V DC power supply line 57, and the terminal P2 is connected to the ground. In the touch sensor IC 33A, the terminal P1 is connected in series to the ground via the resistors 58, 59. The touch sensor IC 33A has a terminal P3' which is connected to the second touch detecting electrode. The starting electrode 32a' and the starting electrode 32a are connected to the terminal P1 of the touch sensor IC 33A via the resistor 60. In the touch sensor IC 33A, the terminal P3 is connected to the negative (-) terminal of the comparator 61, and is connected to the ground via the MOS type FET 62. The output terminal of the comparator 61 is connected to the input terminal of the counter 63, and the positive (+) terminal of the comparator 61 is connected to the common connection point of the resistors 58, 59, and is given +2. 5V critical threshold. Further, a ΟΝ/OFF command signal 64 is applied to the gate of the FET 62 and the control terminal of the counter 63, thereby constituting the start switch 65. In addition, the ΟΝ/OFF command signal 64 is a pulse signal that alternately repeats the high level and the low level. The touch sensor IC33A has eight terminals P4 (only one is shown in FIG. 12), and the terminals P4 The -18-201233867 touch rotation electrode 32b' is connected to each of the eight, and each of the touch rotation electrodes 32b is a resistor 60 connected to the terminal P1 of the touch sensor IC 33A. In the touch sensor IC 33A, 61, FET 62, and counter 63 are also provided at the terminal P4, and the ΟΝ/OFF command signal 64' is given to the gate of the FET 62 and the counting control terminal by the above-described twist switch 66. The detection principle of the sensor detecting circuit of Fig. 12 will also be described with reference to Figs. 13 and 14 . First, the start switch 65 will be described. When the user's finger does not touch the normal operation portion 17a of the operation unit 16, the starter 3 2a is connected to the ground via the capacitor 67. In this case, the user's finger is not in contact with the starting operation portion, and the capacitor 67 is formed with a capacitance to the starting electrode 32a. Further, when the user's finger comes into contact with the starting operation portion 1, the capacitor 67 is a parasitic capacitance formed in the starting electrode 32a plus an added capacitance of the electrostatic capacitance generated by the human body, and the electrostatic capacitance is formed to be larger. Since the ΟΝ/OFF command signal 64 is given to the control terminal of the gate 63 of the FET 62 of the touch sensor IC33A, the ΟΝ/OFF command signal 64 is a low level signal (the turn-off signal FET 62 is turned off) as shown in FIG. Capacitor 67 is slowly increased by the charging voltage' and then formed. The charging voltage of this capacitor 67 is as shown by the solid line of the parasitic electrostatic capacitance as shown by the solid line in Fig. 13. When the composition of 63 is in contact with the electrostatic current of the electrode i, the electrostatic charge is compared with the current and the count is counted, and when the charge is normal, the electrostatic capacitance -19-201233867 is increased. When the capacitor (parasitic electrostatic capacitance + human body electrostatic capacitance) is operated, as shown by the broken line in Fig. 13, the formation is relatively moderate. Then, once the ΟΝ/OFF command signal 64 forms a high level signal (on signal), the FET 6 is turned on, whereby the charge of the capacitor 67 is instantaneously discharged, and the charging voltage is formed to zero (〇). On the other hand, since the comparator 61 is given at the positive (+) terminal + 2. The critical 値 of 5V, so the charging voltage given at the positive (+) terminal is less than +2. The 5V action produces a high level output signal. The counter 63 is triggered by the ΟΝ/OFF command signal 64 to the control terminal, and is triggered after the reset from the high level to the low level. The output signal of the comparator 61 is low when the input terminal is given. If it is accurate, stop counting. Therefore, the count 値 of the counter 63 indicates the operation time of the comparator 31. In the comparator 61, the charging voltage of the capacitor 67 given at the negative (-) terminal forms +2. The time to output the signal to the low level of 5 V is the normal time for the parasitic capacitance of the capacitor 67 to form the time T 1 , but the operation of the capacitor 67 to form the added capacitance is to form the time T2 longer than this. The count 値 (time T1, T2 signal) of this counter 61 is given as a detection signal to the display control device 9 (see Fig. 6). This embodiment will be described with reference to Fig. 6 for convenience of explanation, but the display control device 9 can also control L E D 5 4, 5 5 as will be described later. In the process of the start switch 65, when the user's finger approaches the -20-201233867 start operation portion 17a of the touch operation portion 16, the distance between the start electrode 32a and the finger and the charging voltage of the capacitor 68 reach the arrival + 2. The relationship between the operating time of the comparator 3 of 5V (corresponding to time T2 in Fig. 13) is as shown in Fig. 14. That is, as the user's finger approaches the starting electrode 32a, the electrostatic capacitance of the capacitor 67 becomes larger, and the time T2 becomes longer. As a result, the display control device 9 that inputs the counter 値 (time T2 signal) of the counter 63 as a detection signal has a threshold 値 (time Ta) with a high sensitivity and a threshold 値 with a low sensitivity (long). At time Tb), when the time T2 is a critical 値 (time Ta) having a high sensitivity, it can be determined that the user's finger approaches the start operation portion 17a, and when the time T2 is a critical 値 (time Tb) with low sensitivity, It can be determined that the user's finger is in contact with the start operating portion 17a. Although the detection principle of the start switch 65 has been described above, the detection principle of the torque switch 66 is also the same. In the description of the start switch 65, the start operation portion 17a is replaced with the touch rotation portion 17b, and the start is started. The electrode 3 2a is replaced with the touch rotation electrode 3 2b, and the description thereof is omitted. Therefore, in the knob switch 66, as shown in FIG. 14, the display control device 9 can set a threshold 値 (time Ta) having a high sensitivity and a threshold 更大 (time) having a low sensitivity (long). Tb) to switch. Next, the operation of the present embodiment will be described with reference to Figs. 15 to 18, but as described above, the present embodiment will be described with reference to Fig. 6 for convenience of explanation. Further, the flowchart shown in Fig. 18 is displayed by the operations of the touch sensor IC 33A and the display control device 9. When the user rotates the touch operation unit 16 (twist operation), the touch sensor IC 33A and the display control device 9 execute the flowchart of Fig. 18 . First, it is judged whether or not there is a reaction in the twist portion switch 66 (determination step S1), and when there is no reaction (in the determination step S1 is "NO"), the sensitivity of the start switch 65 is switched to high (process step S12). Next, it is judged whether or not the twisting operation is performed (determination step S3), and it is judged by the detection signal of the twisting portion switch 66 whether or not the user's finger is rotated to operate the touch rotation twisting portion 17b, and when it is not operated ("NO" in the determining step S3) The sensitivity of the knob switch 66 is switched to high (process step S13). It is determined whether the user's finger is close to the vicinity of the touch operation unit 16 (process step S14) - "NO", and it is determined whether or not the LED 55 is turned off and alternately displayed (decision step S 16 6), and when the display is not turned off (in the determination step) s 1 6 is "NO"), and the process proceeds to decision step S7. At this point, in the determination step S7, it is determined whether or not the user touches the touch rotation portion 17b to rotate the operation as described later, and when it is not operated ("NO" in the determination step S7), the process returns to the determination step S1. In the following, the standby determination step S1, the processing step S1 2, the determination step S3, the processing step S13, and the determination steps S14, S16, and S7 are in the standby state, and if the user approaches the touch operation unit 1 In the vicinity of the start operation portion 17a or the touch rotation portion 17b of the 6th, the sensitivity of the start switch 65 and the twist portion switch 66 is set to be high at this time, so that it can be detected (in the determination step S14) YES"), the processing proceeds to step S15 » -22- 201233867 The display control device 9 in this processing step S15 is one of the eight LEDs 55 as shown in Figs. 15 (a) and (b). 4 for a group 'to make alternating light display. In Fig. 15, the blackened portion indicates light emission. Then, 'moving to the determining step S7, hereinafter, repeating the determining step s1, the processing step S1 2, the determining step s3, the processing step S13, the determining step S14, the processing step S15, and the determining step S7, making the LED 55 point Off alternately. Further, 'when the user turns the finger away from the touch operation unit 16 during the alternate display, the determination is made YES at the determination step s14, and it is determined that the LED is turned off alternately (in the determination step si6 is "" YES"), after the finger leaves the touch operation unit 16, the LED 55 is turned off after 5 seconds (process step S17). In the alternate display of the LED 55, when the user brings the finger to the touch rotation portion 7b of the touch operation unit 16, the switch is reacted as the rotation switch "in the determination step S1, it is judged as r YES", and the start is started. The sensitivity of the switch 65 is switched to low (process step S2). Further, when the user's finger operates the touch rotation portion 17b (YES in the determination step S3), the sensitivity of the twist portion switch 66 is switched to be low (process step S4). Then, if the LED 5 5 is alternately displayed in the dot-out (YES in the determination step s 5), the dot-out alternate display of the LED 55 is stopped, and the process proceeds to the determination step S7. In addition, when it is judged that the LeD 55 is not in the interactive display (in the determination step S5, "NO"), the process immediately moves to the determination step S7-23-201233867. In the determination step S7, the sensitivity is switched by the twist switch 66. When it is set to be low, it is determined whether the user rotates the finger in a state where the finger is in contact with the touch rotation portion 17b. When it is judged as "YES", it is determined whether the direction of the rotation of the finger is the direction of the arrow A1 (in 9 and 16 are clockwise) (determination step S8). This can be judged by the change state of the detection signals of the eight knob switches 66. When the direction of the arrow A1 is determined (YES in the determination step 38), the display control device 9 causes the arrow A1 from the uppermost portion of the touch operation unit 16 as shown in Fig. 16(a). The two LEDs 55 on the direction side emit light (process step S9). Hereinafter, each time up to this processing step S9, as shown in FIGS. 16(b) and (c), the LED 55 is advanced by one lighting (lighting) in the direction of the arrow A1. Further, when it is determined that the direction is not the arrow A1 ("NO" in the determination step S8), since the operation direction of the user's finger is the direction of the arrow A2 (counterclockwise in FIGS. 9 and 17), the display is performed. As shown in FIG. 17(a), the control device 9 causes the two LEDs 55 on the side of the arrow A2 side to emit light from the uppermost portion of the touch operation unit 16 (process step S10), and thereafter, each process step S10 is performed. As shown in Figs. 17 (b) and (c), the LED 55 is advanced by one light in the direction of the arrow A2. Then, similarly to the first embodiment, the display is updated in accordance with the current selection mode such as the washing process selection or the time display (processing step SU). Then, similarly to the first embodiment, the user confirms the display of the display unit 20, and stops the operation of the touch-up-24-201233867 twisting portion lb where the desired operation washing is illuminated, and determines the operation washing process. Choice, or change, number of washes, dehydration time. Then, when the finger is brought into contact with the start operation portion 17a, the control device 9 is used from the start switch 65 via the touch sensor IC 33A, and the signal device 41 is further transmitted from the display control device 9, by the main control device 41. To carry out the operation. Further, the display control device 9 causes the LED 54 to emit light upon detecting a signal from the start switch. According to the third embodiment, it is possible to obtain an effect of easily changing the setting contents of the operation washing 20 and the display unit 21 while moving in contact with the finger, and the effect of sampling can be obtained. Since the LEDs 54 and 55 are provided in the substrate 31 corresponding to the start electrode 3 2a and the electrode 32b, the user's finger can be used for the start electrode 3 2a and the touch rotation electrode. In this case, the LEDs 54 and 55 are provided on the opposite side of the substrate 32 and the touch rotation electrode 32b. Therefore, the start electrode 32a and the touch rotation electrode 32b can be attached to the touch operation unit. The back of the 1 6. Therefore, the improvement in the operational sensitivity (touch sensitivity) between the touch main body and the starting electrode 32a and the touch rotation electrode 32b can be shortened. Further, the inner peripheral ring portion 52a surrounding the start operation portion 17a is touched on the touch operation surface 17 of the touch operation portion 16, and the detection is sent to the display to the main control 65. The following touch twister can visually recognize that the operation of 32b is the same as that of the starting back side, and the distance of the configuration is tight to face surface 17, which can be set as the circumference of the touch-control twist portion 17b by the package -25-201233867 The outer peripheral ring portion 52b forms a guide portion 53 that serves as a guide when the finger moves on the touch rotation portion 17b. Therefore, the user can move the finger along the guide portion 53 in the touch rotation portion 17b. Moreover, since the sensitivity of the start switch 65 and the torque switch 66 can be switched between high and low, the sensitivity of the start switch 65 and the twist switch 66 is switched to the most by the operation of the touch rotation portion 17b. When the finger is brought close to the touch operation unit 16, the LED 55 can be turned off and displayed, and the user can be notified that the touch operation unit 16 functions. When the user rotates the touch rotation knob 17b, the sensitivity of the knob portion 66 is switched to be low, thereby allowing the user to operate the finger while touching the touch knob 17b. By detecting the operation, the user's operation idea can be confirmed, and the operation can be confirmed. Further, when the touch of the touch knob portion 17b of the user's finger is rotated, the sensitivity of the start switch 65 is switched to be low, whereby the finger other than the finger in the user's operation is erroneously approached to the starter operation portion 17a. It is also an erroneous operation that prevents the start of the operation of the signal from being sent to the main control unit. Further, in the third embodiment, the rotation of the touch-rotation portion 17b of the user's finger is used to cut the sensitivity of the start switch 65 to a low level, but instead of using the touch of the user's finger In the rotation operation of the twist 17b, the display control device 9 does not accept the detection signal of the start switch, and even if the invalidation is formed, the safety will be more improved. The first place for the first control is used as the 4 1 control unit. 65 liter-26 - 201233867 [Fourth embodiment] Next, a fourth embodiment of the present invention will be described with reference to Figs. 19 and 20 . In the same manner as in the third embodiment, the same portions as those in the third embodiment are denoted by the same reference numerals, and the description thereof will be omitted. Only the different portions will be described. In the fourth embodiment, instead of the touch rotation electrode 32b (D1-D8) provided on the substrate 31 as in the third embodiment, four touches are provided as shown in FIG. The rotation electrode 3 2c ( D1 to D4). The touch rotation knob electrode 32c is formed in a substantially arc shape having an angle range of 180 degrees (.), and the center portion has a maximum width, and is formed in two directions from the center portion to the outer circumference side (clockwise direction and counterclockwise direction). ) A shape with a narrower width. Further, the touch rotation knob electrode 32c is concentric with the substrate 31 by substantially half of the clockwise direction of the center portion of the outer circumference, and substantially half of the counterclockwise side of the center portion of the inner circumference is concentric with the substrate 31. Round shape. Then, the four touch rotation knob electrodes 32c (D1 to D4) are arranged in a ring shape so as to correspond to the touch rotation portion 17b (see FIG. 9). Specifically, the touch rotation knob is used. The inner peripheral portion of the electrode 32c (D1, D2, D3, D4) on the clockwise side is opposite to the outer circumference of the counterclockwise side of the adjacent touch rotation electrode 32c (D2, D3, D4, D1) Part will take the specified interval to correspond. Further, although not shown, the actual touch rotation torque electrode 32c is the same as the -27-201233867 touch rotation electrode 3 2b, and constitutes a torque switch as shown in FIG. 12, and the detection signal is It is supplied to the display control device 9 (see FIG. 6), and then 'when the touch operation portion 16 of FIG. 9 is made to correspond to the substrate 31 in FIG. 19', the uppermost position is set to the degree (°). When the user's finger touches the touch rotation portion 17b and the rotation operation is performed in the clockwise direction, the area of the touch rotation electrode 32c corresponding to the finger changes relatively, so that the area is relatively The shape of the ground changes, and the electrostatic capacitance that is applied by the fingers also changes. Therefore, the detection signals (comparator operation time) of the twist switch of the four touch rotation electrodes 32c (D1, D2, D3, and D4) are formed in FIGS. 20(a), (b), ( As shown in (c) and (d), a signal which is continuously increased by 90 degrees and decreased by 90 degrees in a range of 180 degrees is formed, and detection signals which are shifted by 90 degrees from each other are sequentially formed. Therefore, the detection signal shown in FIGS. 20(a) to (d) is given to the display control device 9, and the rotation operation angle of the user's finger can be detected without any step. Therefore, the fourth embodiment is also The same effect as the third embodiment can be obtained. [Fifth Embodiment] Next, a fifth embodiment of the present invention will be described with reference to Figs. 21 to 25 . It is noted that the same portions as those in the third embodiment are denoted by the same reference numerals in FIGS. 21 to 25, and the description thereof will be omitted, and only the different portions will be described. -28-201233867 The substrate 31 of the fifth embodiment shown in FIG. 21 and FIG. 22 is provided with the touch detection electrode 86 in place of the touch detection electrode 32 of the third embodiment. The touch detection electrode 68 is configured as a start electrode 69 as a second touch detection electrode corresponding to the start operation portion 17a of the touch operation unit 16 and a ring corresponding to the touch rotation portion 17b. The eight touch rotation electrodes 70 (D1-D8) are formed. Further, the starting electrode 69 is composed of a rectangular signal side electrode 69a at the center portion and a rectangular frame-shaped power source side electrode 69b at the periphery thereof. Further, the touch rotation electrode 70 is composed of a rectangular signal side electrode 70a at the center portion and a rectangular frame power source side electrode 70b at the periphery thereof, as shown in FIG. 23, and the touch rotation electrode. In the case of 70, the signal side electrode 7A is connected to the connection electrode 71 provided in the substrate 31 via the through hole, and the power source side electrode 70b is connected to the substrate 31 via the through hole through the solder 74. The connection electrode 73 is provided on the surface side of the connection electrode 71. Further, although not shown, the signal electrode 69a and the power source electrode 69b of the actual starting electrode 69 are also connected to the connection electrode in the same manner. Further, a grounding electrode (shield) 75 having a predetermined gap to surround the starting electrode 69 and the touch rotation electrode 70 is provided on the surface of the substrate 31, and a ground electrode is provided on the back surface of the substrate 31. 76, the ground electrode (shield) 75 and the ground electrode (shield) 76 are connected by solder 77 via via holes. -29- 201233867 In Fig. 24, the touch detection circuit is provided with IC33B for the touch sensor instead of the touch sensor IC33A. The terminal P1 of the touch sensor IC33B is connected via a resistor 78 to the base of the NPN-type transistor 79. In this transistor 79, the base is connected to the emitter via a resistor 80, the emitter is a DC power supply line 8.1 connected to +1 5 V, and the collector is connected to ground via a resistor 82. Further, in the touch sensor IC33B, a square wave signal 83 is given at the terminal P1, and the square wave signal 83 alternately repeats the high level and low level signals at a predetermined period. Therefore, the square wave signal 83 is given to the base. The transistor 79 is turned on at a low level and is turned ON at a high level. The ON of the transistor 79 is connected to a power line 84 which is incident when the transistor 79 is turned on. The pole potential becomes a ground potential when the transistor 79 is turned off. The power source line 84 is a power source side electrode 619 connected to the starting electrode 69, and eight power supply side electrodes 70b are connected to the eight touch rotation powers 70 (only one is shown in Fig. 24). The touch sensor IC 33B has a terminal P2 which is connected to the A/D conversion circuit 85 in the touch sensor IC 33B. The terminal P2 is connected to the signal side electrode 69a of the starting electrode 69 via the diode 86 in the reverse direction. The cathode of the diode 86 is connected to the ground via the resistor 87, and is connected to the ground via the capacitor 88. The cis-30-201233867 direction is connected to the DC power supply line 57 via the diode 89, and the start switch 90 is constructed by these. The touch sensor IC 33B has eight terminals P3 (only one is shown in FIG. 24), and the terminal P3 and the signal side electrodes 70a of the eight touch rotation electrodes 70 are Similarly to the start switch 90, an A/D conversion circuit 85, a diode 86, a resistor 87, a capacitor 88, and a diode 89 are connected to each other, and the respective twist portion switches 91 are formed by these. Next, the principle of detection of the sensor detecting circuit shown in Fig. 24 will be explained with reference to Fig. 25. First, the start switch 90 will be described. When the user's finger is not in contact with the start operation portion 17a of the touch operation unit 16, the power supply side electrode 69a and the signal side electrode 69b of the start electrode 69 are separated from each other and insulated. When the user brings the finger into contact with the start operation portion 17a, the power source side electrode 69a and the signal side electrode 69b of the starter electrode 69 are connected via the capacitor 92 generated by the electrostatic capacitance of the user's finger. Thereby, when the transistor 79 is turned on, the capacitor 88 is charged via the power source line 84 and the capacitor 92 to generate a voltage, and the generated voltage is supplied to the A/D conversion circuit 85. However, in the process of the start switch 90 when the user's finger approaches the start operation portion 17a of the touch operation portion 16, the distance between the start electrode 69 and the finger and the charge voltage (voltage generation) of the capacitor 88 are generated. The relationship is as shown in Figure 25. That is, as the user's finger approaches the starting electrode 69, the electrostatic capacitance of the capacitor -31 - 201233867 92 becomes smaller, and the generated voltage becomes larger. As a result, the display control device 9 that inputs the output signal of the A/D conversion circuit 85 as the detection signal has a threshold of a high sensitivity threshold (voltage Va) and a voltage Vb greater than the voltage Va.値 (voltage Vb) enables high switching sensitivity and low sensitivity. Therefore, when the voltage is a critical enthalpy (voltage Va) having a high sensitivity, it can be determined that the user's finger approaches the starting operation portion 17a, and when the generated voltage is a critical 値 (voltage Vb) having a low sensitivity, it can be judged that the voltage is used. The finger of the person is in contact with the starting operation portion 17a. Although the detection principle of the start switch 90 has been described above, the detection principle of the torque switch 9 1 is also the same. In the description of the start switch 90, the start operation portion 17a is replaced with the touch rotation portion 17b, and the start electrode is used. 69 is replaced with the electrode for touch rotation knob 70, and the description thereof is omitted. Therefore, in the knob switch 91, as shown in FIG. 25, the display control device 9 can set a threshold 値 (voltage Va) having a high sensitivity and a threshold 电压 (voltage Vb) having a low sensitivity. Switch. Even if the touch sensor IC 33B is used instead of the touch sensor IC 3 3 A of the third embodiment, the flowchart shown in Fig. 18 can be implemented in the touch sensor IC 33B and the display control device 9. According to the fifth embodiment, the same effects as those of the third embodiment can be obtained. [Sixth embodiment] Next, a sixth embodiment of the present invention will be described with reference to Fig. 26 . In the sixth embodiment, for convenience of explanation, reference is also made to Figs. 21 and 24 of the embodiment of the 32-201233867. In the sixth embodiment, the square wave frequency of the square wave signal 83 applied to the terminal P1 of the touch sensor IC33B of Fig. 24 can be switched to a high frequency for high sensitivity and a low frequency for low sensitivity. 26 is a graph showing the relationship between the distance between the electrode (the starting electrode 69 or the touch-control electrode 70) and the user's finger, and the voltage and frequency of the capacitor 88 being high and low. The frequency is higher than the frequency. The current in the capacitor 92 is large, and the voltage generated by the capacitor 88 is high. Therefore, even if the threshold 値 of the voltage is set to a certain Vb, it is possible to detect that the finger is close to the start operation portion 17a or the touch rotation portion 17b when the frequency is high, and the relative finger contact is detected when the frequency is low. The operation portion 17a or the touch rotation portion 17b. In addition, when the sensitivity of the starter switch 90 and the torque switch 91 is individually switched to be high or low, the terminal P1 dedicated to the start switch 90 and the terminal dedicated to the torque switch 91 are provided in the touch sensor IC 33B. P1 can be used to switch frequencies individually. According to the sixth embodiment, the same effects as those of the fifth embodiment can be obtained. [Seventh embodiment] A seventh embodiment of the present invention will be described with reference to Figs. 27 and 28 . In the seventh embodiment, the same portions as those in Figs. 21 and 22 of the fifth embodiment are denoted by the same reference numerals, and only the different portions will be described below. In the seventh embodiment, the touch operation unit 16 provided on the panel 7 has a substantially circular convex portion 93 located at the center portion and a guide portion located around the convex portion 93. The annular ridge portion 94 has a convex portion 93 which is open at the lower surface, and has a surface (upper surface) which is a starting operation portion i7a, and the ridge portion 94 is opened at the lower surface, and the surface (upper surface) is a ring-shaped touch rotation portion 17b. In the seventh embodiment, the substrate 31 is divided into a circular substrate 31A located at the center portion and an annular substrate 31B located around the substrate 31A. The substrate 31A is provided with a starting electrode 69. On the substrate 31B, eight touch rotation electrodes 70 are provided. Further, the substrate 31A is disposed in the lower concave portion of the convex portion 93, the starting electrode 69 corresponds to the starting operation portion 17a, and the substrate 31B is disposed in the lower concave portion of the ridge portion 74, and the touch rotation electrode 70 It corresponds to the touch twist portion 17b. In the seventh embodiment, the portion where only the touch operation portion 17a is operated is formed with the convex portion 93, and the portion where the guide portion guided along the touch rotation portion 17b is formed with the convex portion 94 is different from the fifth embodiment. The same operational effects as those of the fifth embodiment can be obtained. [Eighth Embodiment] An eighth embodiment of the present invention will be described with reference to Figs. 29 and 30. In the eighth embodiment, the same portions as those in the fourth and fifth embodiments are denoted by the same reference numerals, and the different portions will be described below. In the eighth embodiment, the starting electrode 69 similar to that of the fifth embodiment is provided in the center portion of the substrate 31 so as to surround the starting electrode 69, and the fourth embodiment is provided. The same four touch rotation knob electrodes 32c. However, in the eighth embodiment, the four touch rotation electrodes 3 2c are formed to have smaller diameters than in the fourth embodiment. Further, in the substrate 31, a substantially annular common power source side electrode 32d is provided so as to surround the periphery of the four touch rotation torque electrodes 32c. The four touch-rotation-side electrodes 32c and the power-side electrode 32d are four pairs of electrodes corresponding to the touch-rotation portion 17b (see FIG. 21) of the touch operation portion 16, and constitute a symbol 91 as shown in FIG. A twister switch as shown. . Then, once the user rotates the touch rotation portion 17b by the finger, the electrostatic capacitance of the finger acts on the power source side electrode 32d and the four touch rotation electrode 32c in sequence, on the power supply side. The four rotating part switches formed by the electrode 32d and the four touch-rotation electrodes 3 2c sequentially generate voltages, and the generated voltages are respectively formed in FIGS. 30(a), (b), (c), and (d). ) shown. Therefore, the same effects as those of the fourth embodiment can be obtained by the eighth embodiment. Further, the present invention is not limited to the above-described embodiments, and may be modified or expanded as in the following. In the case where the touch rotation electrodes 32b (D1 to D8) and 70 (D1 to D8) are arranged in a ring shape, the plurality of touch detection electrodes may be arranged in a straight line. As long as the touch operation unit 16 is extended to the linear direction in the manner of -35-201233867. Also in such a configuration, similarly to the above-described embodiment, the setting operation can be changed while the finger is moved while being in contact with the touch operation surface 17. The start operating portion 17a of the touch operating portion 16 may be further recessed than the surrounding touch operating surface 17. In this way, the erroneous operation start operation unit 17a can be suppressed. When the washing machine of the present embodiment is used as described above, the user can move the finger while touching the touch rotation portion of the touch operation unit, thereby being easily changeable. The setting content displayed on the display unit. Since the touch operation portion is integrally provided on the panel, it is not necessary to provide a protrusion such as a manipulation knob on the panel, so that the panel can be planarized and beautified. Further, since the panel does not need to be manipulated like a manipulation knob, it is easy to perform waterproof countermeasures. The embodiments of the present invention have been described above, but the embodiments are presented as examples, and are not intended to limit the scope of the invention. The present invention may be embodied in various other forms and various modifications, substitutions and changes can be made without departing from the scope of the invention. The embodiments and the modifications thereof are included in the scope and spirit of the invention, and are included in the scope of the invention described in the claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing a touch operation unit according to a first embodiment. 2 is an external perspective view of a drum type laundry dryer. Figure 3 is a front elevational view of the panel. -36-201233867 Fig. 4 is a layout view showing electrodes for touch detection. Fig. 5 is a cylindrical view of the panel as seen from the back side. Fig. 6 is a view showing an electrical configuration. Fig. 7 is an equivalent circuit diagram showing a touch detection circuit. Fig. 8 is a view corresponding to Fig. 1 showing a second embodiment. Fig. 9 is a front elevational view showing a touch operation unit according to a third embodiment; Figure 1 is a cross-sectional view of the touch operation unit. Figure 11 is a front elevational view of the substrate. Fig. 12 is an equivalent circuit diagram showing a touch detection circuit. Fig. 13 is a characteristic diagram for explaining the principle of detection. Fig. 14 is a characteristic diagram for explaining sensitivity switching. Fig. 15 is a view for explaining alternate display of LEDs. Fig. 16 is a view for explaining a rotation display in one direction of the LED. Fig. 17 is a diagram for explaining a rotation display of the opposite direction of the LED. Figure 18 is a flow chart for the action description. Fig. 19 is a front elevational view showing the substrate of the fourth embodiment. Fig. 20 is a view showing detection characteristics of an electrode for touch rotation. Fig. 21 is a cross-sectional view showing the touch operation unit of the fifth embodiment. Figure 22 is a front elevational view of the substrate. Figure 23 is a partially enlarged cross-sectional view of the substrate. Fig. 24 is an equivalent circuit diagram showing the sensor detecting circuit. Fig. 25 is a characteristic diagram for explaining sensitivity switching. Fig. 26 is a view corresponding to Fig. 25 showing a sixth embodiment. Fig. 27 is a cross-sectional view showing the touch operation unit of the seventh embodiment. -37- 201233867 Figure 28 is a front view of the substrate. Fig. 29 is a front elevational view showing the substrate of the eighth embodiment; Fig. 30 is a view showing detection characteristics of an electrode for touch rotation. · [Main component symbol description] 2: Washing machine body 7: Panel 9: Display control device (display control means, change operation means) 1 6 : Touch operation unit (change operation means) 1 7 : Touch operation surface (change Operation means) 17a: Start operation unit 17b: touch rotation unit (change operation means) 20: operation washing display unit (display unit) 21: display unit 29: touch sensor unit 32, 68: touch detection Electrode (change operation means) 3 2a, 69 : Starting electrode (second touch detection electrode) 3 2b, 3 2c : Touch rotation electrode (change operation means) 53 : Guide part 55 : LED (lighting) Department) -38-