201128674 六、發明說明： 【發明所屬之技術領域】 [0001]本發明關於一種按鍵單元，這種按鍵單元應用於行動裝 置’例如可攜式行動電話。 【先前4支術·】 [0002] 按鍵單元係構成諸如可攜式行動電話等行動裝置的重要 部件，在行動電話上，一個按鍵面板表面可以集成多個 操作按鈕凸出設置’通常這種按鍵面板由硬樹脂類材料 〇 製成，而在操作按紐下一般設有複數鍵墊，所述鍵墊由 軟制材料如矽橡膠或熱塑彈性體制成。這種按鍵單元的 普遍應用為用戶在行動電話的資訊输泰帶來了極大的方 便。而由於行動電話技術的發動電話薄型 化趨勢的進步，以及人們對行勤卜觀县求的不斷提 向’這種帶有突出式鍵帽的按鍵單元逐漸演變為完全呈 平板狀的按鍵單元’即操作按鈕並不突出於按鍵面板設 置。 © [〇〇〇3]前述兩種按鍵單元為現今業界通常為行動裝置配備的按 鍵種類，在生產和組裝過程中，通常先完成按鍵單元的 表面處理，然後經過鐳射表面鐳雕刻蝕，在按鍵單元的 鐘金屬層形成-定圖案和文字後將按鍵出貨給客戶。但 疋这種組裝方式的弊端也日漸凸顯，由於行動電話需要 銷往世界各地，而針對不同的地㈣需要㈣單元對應 不同的文字和符號’按照現今的生產和組裝模式，當— 個地區或者一種語s版本的行動電話滯銷，則會導致已 組裝好的行動電話大量轉，給行動電話製造商和銷 099103745 表單編號A0101 第3 頁/共17頁 201128674 售商帶來損失。 [0004] 因此 [0005] ，需要提供一種能夠解決上 【發明内容】 本發明要達到的目的係通過改 述問題的按鍵單元。 變按鍵單元的生產流程， 的庫存，客戶按照銷售 [0006] [0007] 降低多符號（語言）版本按鍵單 情況靈活調整鐳雕符號的需求。 為了實現上述目的，本發明採用 =含由彻或熱塑彈性體形成的鍵塾層鍵Si 上側設有由透明硬樹脂形威的保護層 a的 面向使用者的上表面和一盘上表面伞/θ八有— ^表面平仃相對的下表面’ 一純層塗覆於保護層的下表面，其中鍵塾層和保護声 ^還設有—鑛錫層，通過鐳射從保護層上表面二 照射，除去賴層域騎闕過的部分形成鎮 同時顏色層不受損傷。 ’ 相較先前技術，本發明按·夠先搞動裝置 ，完成出貨前除打·的一切工序後’再根據行動襞置 的出貨地進行打標，降低多符號（語言）版本按鍵單 庫存。且本按鍵單元在打標過㈣，鐘射可以在^層 上形成表讀位或轉不損_ 其他各層。 的 個BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a button unit that is applied to a mobile device such as a portable mobile phone. [Previous 4 Techniques] [0002] The button unit constitutes an important part of a mobile device such as a portable mobile phone. On a mobile phone, a button panel surface can be integrated with a plurality of operation buttons to emboss a setting. The panel is made of a hard resin material, and a plurality of key pads are generally provided under operation buttons, which are made of a soft material such as silicone rubber or thermoplastic elastomer. The universal application of such a button unit brings great convenience to the user's information transmission on the mobile phone. And because of the advancement of the mobile phone technology, the trend of thinning the phone, and people's continuous demand for the line of duty, the county's button unit with a prominent keycap gradually evolved into a completely flat button unit. That is, the operation button does not protrude from the button panel settings. © [〇〇〇3] The above two button units are the types of buttons that are commonly used in mobile devices in the industry today. In the production and assembly process, the surface treatment of the button unit is usually completed first, and then the laser surface is laser-etched and etched at the button. The unit's clock metal layer is formed - the pattern and text are then shipped to the customer. However, the drawbacks of this type of assembly are also becoming more and more obvious, because mobile phones need to be sold all over the world, and for different places (4) need (4) units correspond to different words and symbols 'in accordance with current production and assembly modes, when - A language s version of the mobile phone is slow-moving, which will result in a large number of mobile phones being assembled, causing losses to the mobile phone manufacturer and the sales of 099103745 Form No. A0101 Page 3 of 17 201128674. [0004] Therefore, it is desirable to provide a key unit that can achieve the object by modifying the problem. Change the production process of the button unit, the inventory, the customer according to the sales [0006] [0007] Reduce the multi-symbol (language) version of the button list to flexibly adjust the needs of the laser engraving symbol. In order to achieve the above object, the present invention employs a user-facing upper surface and a disk upper surface umbrella having a protective layer a of a transparent hard resin layer on the upper side of the key layer layer Si formed of a clear or thermoplastic elastomer. /θ八有—^ The surface is flat on the opposite lower surface' A pure layer is applied to the lower surface of the protective layer, wherein the bond layer and the protective sound are also provided with a tin-plated layer, which passes through the laser from the upper surface of the protective layer. Irradiation, removing the portion of the Lai layer that has been ridden, forms a town while the color layer is not damaged. Compared with the prior art, the present invention is capable of first moving the device, completing all the processes before the shipment, and then marking according to the shipping location of the action device, reducing the multi-symbol (language) version button list. in stock. And the button unit is marked (4), the clock shot can form a table read position on the layer or turn _ other layers. Of
【實施方式】 [0008]下面結合圖面詳細描述本發明。 請參閱第-圖至第五圖，本發明按鍵單元工由底層到頂層 ’共包括：鍵墊層10、導光層20、保護油層30、鍍錫層θ 099103745 表單煸號A0101 0992007026-0 [0009] 201128674 [0010] ο [0011] ο 099103745 40、吸光層50、顏色層60以及保護層70。前述每一層依 次疊加於相對應的各層，共同組成按鍵單元1。 作為按鍵單元1的最底層，鍵墊層丨〇通常為軟性且具有彈 性的塑膠材料製成，如：矽橡膠或者熱塑彈性體。鍵墊 層10可以為透明。該鍵墊層1〇可以為完全平面狀也可 以在其上表面凸出設置複數個鍵體u，如第五圖所示， 鍵體11按照行動電話需求的形式排列，第五圖所示的鍵 墊層10為沒有打標前的狀態，而在成品行動電話上看到 的數位鍵或者字母鍵的標誌，均為後續舉造過程中通 過鐳射在鍵墊層10或者鍵艎丨丨上覆蓋的對應層打標形成 。如第二圖所示，鍵墊層10的下表面對應.於鍵體“的位 置處突出执置與鍵體11同等數量或者大於鍵體數量的按 壓體12〇 所述鍵蟄層10的上側置有導光層2〇，該導光層2〇由如 PC(聚碳酸酯）或者PET(聚對笨二甲酸乙二醇酯）等透光 性樹脂材料製成，該類透光性樹脂材料具有優良的導光 性能，設置於按鍵單元1邊緣或者中間的光源（未圖示）所 散發出的大部分光線能夠在導光層2〇中經過全反射而傳 導。導光層20的上下表面對應於鍵墊層1〇的鍵體丨丨貫穿 設有孔部21，導光層20置於鍵墊層1〇之上時，鍵體丨1從 孔部21穿過以定位導光層20，防止導光層2〇橫向移動。 通常，導光層20通過雙面膠和與其相鄰的保護油層3〇相 黏合。 接下來所描述之保護油層30、鍍錫層40、吸光層50、顏 色層60以及保護層70，每一層均通過各種方式依附於相 表單編號A0101 第5頁/共17頁 0992007026-0 [0012] 201128674 對應的各層。 [0013] 位於鍵墊層10上侧的保護層70用以保護按鍵單元1由於摩 擦過多而掉色，保護層70通常由具有耐磨損性能的聚氨 基甲酸酯類的紫外線硬化樹脂形成，在形成按鍵單元1所 需的保護層70時，需要將紫外線硬化樹脂注入與保護層 70形狀結構相同的模具（未圖示）中，通過一定時間範圍 内的紫外光照射，使模具内的紫外線硬化樹脂硬化並形 成保護層70，於模具中取出保護層70。保護層70具有一 個面向使用者的上表面71和一個與上表面71平行相對的 下表面72。 [0014] 顏色層60由單色或者多色的塗料或者經過調色後的油墨 塗附於保護層70的下表面72而成，其顏色可以由按鍵單 元1的製造者決定。 [0015] 顏色層60的下表面設有吸光層50，吸光層50係將透明的 黑色油墨或者類似能夠起到吸光作用的物質塗附於所對 應顏色層60的表面而形成》 [0016] 吸光層50塗附於顏色層60之後，通過物理氣相沉積、濺 鍍或者多層鍍膜中的任意一種方式，將金屬錫鍍在吸光 層50與顏色層60相對的表面形成鍍錫層40，鏟錫層40的 下表面塗敷有保護油層30，保護油層30能夠防止鍍錫層 40長時間暴露在空氣中而發生的氧化或者物理性質不穩 定的現象。鍍錫層40上通過一定能量的鐳射進行錯雕刻 蝕的方式，穿透鍍錫層40形成鏤空部41，鏤空部41為按 鍵單元1所對應的數位、圖案或者符號（例如1、2、3、4 099103745 表單編號A0101 第6頁/共17頁 0992007026-0 201128674 ❹ G [0017] 的金祕1:8'9、#、*等)。本發明中的鍍錫層4〇所鍍 4為錫（Sn)，根據應用的不同，也可以鍍錫盘 其他金屬的入杰*^ 蜱 〇战屋口口，例如：鉛、銻等。本發明的目的 屮^ ^ -庫存，按鍵單元1組裝完成後，根據行動電話的 而對按鍵單元1進行鐳射錯雕刻姓，在按鍵單元j 相對應國家的符號和文字，這種生產方式能夠报 好的實現本發 式乃目的。由於錫的熔點較低，採用錫或者 二金屬的合金產品作為鍍層材料，在按鍵單元1組 畢隻用至少一束特定波長範圍内的鐳射（鐳射焦點 月b量恰好相錫祕點）從按鍵單元1的正面，即保護層 70的表面對鍍㈣4G進行舰^而對鍍錫層_姓的同 時被錯射透過的其他各層（例如吸光層5〇、顏色層和 保護層70)均不受鐳射刻敍影響。通過上述方法，使得在 按鍵單元1與行動設備組裝後，根據行動設備的銷售地再 進行鐳射打標，形成對應的數位、圖案或者符號，降低 多符號（浯δ )版本按鍵單元的庫存，保證了按鍵單元1的 即時組裝。 該生產方式還可以產生另外一種鍵盤顯示效果。當無背 光時，用戶從按鍵單元1的正面觀察到的係顏色層6〇的顏 色，只有行動電話打開背光時，用戶才能夠從按鍵單元1 的正面觀察到由鍍錫層4〇形成的數位、圖案以及符號。 [0018] 综上所述，本發明確已符合發明專利之要件，爰依法提 出申請專利。惟’以上所述者僅係本發明之較佳實施方 式，本發明之範圍並不以上述實施方式爲限，舉凡熟習 本案技藝之人士援依本發明之精神所作之等效修飾或變 099103745 表單煸號A0101 第7頁/共17頁 0992007026-0 201128674 化，皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 [0019] 第一圖為本發明按鍵單元組裝後的立體圖； [0020] 第二圖為第一圖所示按鍵單元組裝後另外一個角度的立 體圖； [0021] 第三圖為第一圖所示按鍵單元的立體分解圖； [0022] 第四圖為第一圖所示按鍵單元組裝後未經過鐳射雷雕刻 蝕前的剖面局部示意圖； [0023] 第五圖為第一圖所示按鍵單元組裝完成後經過鐳射雷雕 刻蝕後的剖面局部示意圖； [0024] 第六圖為第一圖所示按鍵單元裝配在行動電話上之後無 背光的圖示； [0025] 第七圖為第一圖所示按鍵單元裝配在行動電話上之後有 背光的圖示。 【主要元件符號說明】 [0026] 按鍵單元：1 [0027] 鍵墊層：10 [0028] 鍵體：11 [0029] 按壓體：12 [0030] 導光層：20 [0031] 孔部：21 099103745 表單編號A0101 第8頁/共17頁 0992007026-0 201128674 [0032] [0033] [0034] [0035] [0036] [0037] [0038] Ο [0039] 保護油層：30 鍍錫層：40 鏤空部：41 吸光層：50 顏色層：60 保護層：70 上表面：7_1 下表面：72 Ο[Embodiment] The present invention will be described in detail below with reference to the drawings. Referring to the first to fifth figures, the key unit of the present invention comprises: a key pad layer 10, a light guiding layer 20, a protective oil layer 30, a tin plating layer θ 099103745, and a form nickname A0101 0992007026-0 [ 0009] [0010] ο 099103745 40, light absorbing layer 50, color layer 60 and protective layer 70. Each of the foregoing layers is superimposed on the corresponding layers in order to form the button unit 1. As the bottom layer of the key unit 1, the key pad layer is usually made of a soft and elastic plastic material such as ruthenium rubber or thermoplastic elastomer. The key pad layer 10 can be transparent. The key pad layer 1 〇 may be completely planar or may be provided with a plurality of key bodies u protruding on the upper surface thereof. As shown in the fifth figure, the key body 11 is arranged in the form of a mobile phone demand, as shown in the fifth figure. The key pad layer 10 is in a state before the marking, and the digital key or the letter key mark seen on the finished mobile phone is covered by the laser on the key pad layer 10 or the key pad during the subsequent manufacturing process. The corresponding layer is marked to form. As shown in the second figure, the lower surface of the key pad layer 10 corresponds to the upper side of the key layer 10 which is protruded from the position of the key body at the same position as the key body 11 or larger than the number of the key bodies. The light guiding layer 2 is disposed, and the light guiding layer 2 is made of a light transmissive resin material such as PC (polycarbonate) or PET (polyparaphenylene glycol dicarboxylate). The material has excellent light guiding performance, and most of the light emitted from a light source (not shown) disposed at the edge or the middle of the button unit 1 can be totally reflected and reflected in the light guiding layer 2〇. The key body corresponding to the surface of the key pad layer 1 is inserted through the hole portion 21, and when the light guiding layer 20 is placed on the key pad layer 1 , the key body 1 passes through the hole portion 21 to position the light guiding layer. 20. Preventing the lateral movement of the light guiding layer 2. Generally, the light guiding layer 20 is bonded to the protective oil layer 3〇 adjacent thereto by the double-sided tape. The protective oil layer 30, the tin plating layer 40, and the light absorbing layer 50 are described next. , color layer 60 and protective layer 70, each layer is attached to phase form number A0101, page 5 of 17 by various means. 0992007026-0 [0012] The corresponding layers on the upper side of the key pad layer 10 are used to protect the button unit 1 from discoloration due to excessive friction, and the protective layer 70 is usually made of a polyamino group having wear resistance. When the protective layer 70 required for the button unit 1 is formed, it is necessary to inject the ultraviolet curable resin into a mold (not shown) having the same shape and structure as the protective layer 70, and to pass through a predetermined time range. The ultraviolet light is irradiated to cure the ultraviolet curable resin in the mold to form a protective layer 70, and the protective layer 70 is taken out in the mold. The protective layer 70 has a upper surface 71 facing the user and a lower surface 72 parallel to the upper surface 71. [0014] The color layer 60 is formed by applying a single color or multi-color paint or a toned ink to the lower surface 72 of the protective layer 70, the color of which may be determined by the manufacturer of the button unit 1. [0015] The lower surface of the color layer 60 is provided with a light absorbing layer 50 which adheres a transparent black ink or a substance capable of absorbing light to the surface of the corresponding color layer 60. [0016] After the light absorbing layer 50 is applied to the color layer 60, the metal tin is plated on the surface of the light absorbing layer 50 opposite to the color layer 60 by any one of physical vapor deposition, sputtering or multi-layer plating. The tin layer 40 and the lower surface of the shovel layer 40 are coated with a protective oil layer 30, which can prevent oxidation or physical instability of the tin plating layer 40 from being exposed to the air for a long time. The through-plated layer 40 forms a hollow portion 41 by means of a laser of a certain energy, and the hollow portion 41 is a digit, a pattern or a symbol corresponding to the button unit 1 (for example, 1, 2, 3, 4 099103745 form number A0101 Page 6 of 17 0992007026-0 201128674 ❹ G [0017] Gold Secret 1:8'9, #, *, etc.). In the present invention, the tin plating layer 4 is plated with tin (Sn), and depending on the application, it is also possible to plate a tin plate with other metals into the mouth of the house, such as lead, bismuth, and the like. The object of the present invention is 库存^^-inventory, after the button unit 1 is assembled, the button unit 1 is laser-engraved according to the mobile phone, and the symbol and text of the country corresponding to the button unit j can be reported. A good implementation of this hair style is the purpose. Since the melting point of tin is low, an alloy product of tin or two metal is used as the plating material, and at least one laser beam in a specific wavelength range is used in the button unit 1 group (the laser focus month b amount is just the phase tin secret point) from the button The front surface of the unit 1, that is, the surface of the protective layer 70 is not subjected to plating (4) 4G, and the other layers (for example, the light absorbing layer 5 〇, the color layer, and the protective layer 70) which are simultaneously mis-transmissive to the tin plating layer_ Laser engraved influence. Through the above method, after the button unit 1 and the mobile device are assembled, laser marking is performed according to the sales location of the mobile device to form a corresponding digit, pattern or symbol, and the inventory of the multi-symbol (浯δ) version button unit is reduced to ensure The instant assembly of the button unit 1 is performed. This production method can also produce another keyboard display effect. When there is no backlight, the color of the color layer 6〇 viewed by the user from the front of the button unit 1 can be viewed by the user from the front of the button unit 1 to the digital position formed by the tin plating layer 4 when only the mobile phone turns on the backlight. , patterns and symbols. [0018] In summary, the present invention has indeed met the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or changes to the form of 099103745 in accordance with the spirit of the present invention. The nickname A0101 page 7 / page 17 0992007026-0 201128674, should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS [0019] The first figure is a perspective view of the button unit assembled according to the present invention; [0020] The second figure is a perspective view of another angle after assembly of the button unit shown in the first figure; [0021] An exploded perspective view of the button unit shown in the first figure; [0022] FIG. 4 is a partial schematic cross-sectional view of the button unit after the assembly of the button unit shown in the first figure is not subjected to laser ray etching; [0023] FIG. 6 is a partial cross-sectional view of the button unit after laser beam etching after completion of assembly; [0024] FIG. 6 is a diagram showing no backlight after the button unit shown in the first figure is assembled on a mobile phone; [0025] The figure shows an illustration of the backlight unit after the button unit shown in the first figure is mounted on the mobile phone. [Main component symbol description] [0026] Key unit: 1 [0027] Key pad: 10 [0028] Key body: 11 [0029] Pressing body: 12 [0030] Light guiding layer: 20 [0031] Hole: 21 099103745 Form No. A0101 Page 8 of 17 0992007026-0 201128674 [0033] [0034] [0038] [0038] [0039] Protective oil layer: 30 Tin plating layer: 40 hollow Part: 41 Light absorbing layer: 50 Color layer: 60 Protective layer: 70 Upper surface: 7_1 Lower surface: 72 Ο
099103745 表單編號Α0101 第9頁/共17頁 0992007026-0099103745 Form number Α0101 Page 9 of 17 0992007026-0